Earphone loudspeaker structure

Abstract

The utility model provides an earphone loudspeaker structure, which comprises an upper magnetic ring basin stand and a lower magnetic ring basin stand which are in precise butt joint through six buckle positions. The vibrating diaphragm assembly is arranged between the upper magnetic ring basin stand and the lower magnetic ring basin stand; the plurality of magnetic rings comprise an upper central magnetic ring and a lower central magnetic ring, an upper small magnetic ring and a lower small magnetic ring, an upper middle magnetic ring and a lower middle magnetic ring, and an upper large magnetic ring and a lower large magnetic ring which respectively form two groups of vertically corresponding magnetic ring structures; the upper magnetic ring basin stand and the lower magnetic ring basin stand are arranged in the upper magnetic ring basin stand and the lower magnetic ring basin stand in an annular concentric structure in the vertical direction; 3M sealants are arranged on the upper side and the lower side of the vibrating diaphragm assembly and are used for sealing and assembling the upper magnetic ring basin stand and the lower magnetic ring basin stand; the vibrating diaphragm assembly is a double-sided circuit plane vibrating diaphragm, and a welding lead is of a straight welding structure. Through the high-precision plastic molding material and the newly designed 3M glue sealing structure, the precision of the assembly gap of the loudspeaker is realized, and the sound distortion is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to audio equipment technical field more specifically, it is earphone loudspeaker structure that outer diameter is 8mm, 11mm or 15mm. BACKGROUND

[0002] Traditional flat panel loudspeakers have deficiencies in assembly precision, electrical performance and production efficiency. For example, imprecise assembly gaps can cause sound distortion, and poor contact of copper point contact type can cause electrical failure. Therefore, it is necessary to provide a flat panel loudspeaker with more optimized structure and more stable performance. SUMMARY

[0003] Therefore, the utility model provides an earphone loudspeaker structure.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] An earphone loudspeaker structure comprises: an upper magnetic ring yoke and a lower magnetic ring yoke, which are precisely connected by six buckle positions; a diaphragm assembly is arranged between the upper magnetic ring yoke and the lower magnetic ring yoke;

[0006] A plurality of magnetic rings comprises upper and lower center magnetic rings, upper and lower small magnetic rings, upper and lower middle magnetic rings, and upper and lower large magnetic rings, which form two groups of corresponding magnetic ring structures; the thickness of each group of magnetic rings in the horizontal direction is consistent, and the diameters of the magnetic rings increase from the inside to the outside, and the groups are installed in the upper magnetic ring yoke and the lower magnetic ring yoke in a ring-shaped concentric structure in the vertical direction; the diaphragm assembly is provided with 3M sealant on the upper and lower sides for sealed assembly between the upper magnetic ring yoke and the lower magnetic ring yoke; the diaphragm assembly is a double-sided line plane diaphragm, and the soldering lead adopts a straight soldering structure.

[0007] In the preferred technical scheme, the 3M sealant seals and bonds the diaphragm assembly and the lower magnetic ring yoke to form a first sound cavity; the upper magnetic ring yoke is provided with an upper cover on the outside, the upper cover is connected to the upper magnetic ring yoke by point sealing, and a second sound cavity is formed, so that the loudspeaker forms a closed double sound cavity structure.

[0008] In the preferred technical scheme, the upper magnetic ring yoke and the lower magnetic ring yoke are respectively provided with a plurality of concentric annular grooves corresponding to the sizes of the magnetic rings, and the magnetic rings are installed by nesting and point sealing to avoid deviation and looseness.

[0009] In the preferred technical scheme, the six buckle positions comprise six buckles and six buckle slots arranged horizontally around the upper magnetic ring yoke or the lower magnetic ring yoke to improve the connection stability.

[0010] In the preferred technical solution, the assembly tolerance of the buckle position is controlled within the range of ±0.01mm, so as to improve the assembly precision.

[0011] In the preferred technical solution, the 3M sealant adopts an annular packaging structure, so as to ensure the sealing performance and the anti-vibration performance.

[0012] In the preferred technical solution, the lower magnetic ring basin frame is provided with a protective steel mesh on the outer side, so as to prevent dust and foreign matters from entering.

[0013] In the preferred technical solution, the upper magnetic ring is provided with a tuning mesh on the outer side, so as to adjust the air permeability of the loudspeaker.

[0014] In the preferred technical solution, the outer diameter of the loudspeaker structure can be 8mm, 11mm or 15mm, so as to be suitable for integrated assembly of loudspeakers of different models.

[0015] According to the above technical solution, compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The assembly precision is improved: through the high-precision plastic forming material and the newly designed 3M glue sealing structure, the precision of the loudspeaker assembly gap is realized, and the sound distortion is reduced.

[0017] The electrical performance is improved: the diaphragm assembly adopts a straight welding lead design, so as to improve the electrical performance and consistency, and reduce the faults caused by poor contact and oxidation.

[0018] The production efficiency is improved: the optimized structure design and process improve the production efficiency and reduce the production cost. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0020] Figure 1 It is a decomposition structure schematic view of the utility model.

[0021] Figure 2 It is a cross-sectional structure schematic view of the utility model.

[0022] Label: 1, upper cover; 2, tuning net; 3, upper magnetic ring basin frame; 4, upper large magnetic ring; 5, upper middle magnetic ring; 6, upper small magnetic ring; 7, upper center magnetic ring; 8, diaphragm assembly; 9, 3M sealant; 10, lower center magnetic ring; 11, lower small magnetic ring; 12, lower middle magnetic ring; 13, lower large magnetic ring; 14, lower magnetic ring basin frame; 15, protective steel mesh; 101, buckle; 102, clamping groove. DETAILED DESCRIPTION

[0023] The application will now be described in further detail with reference to the drawings. These drawings show only the essential features of the application and are not to scale. They show, in cross-section, the basic structure of the application.

[0024] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0025] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] An earphone speaker structure, please refer to Figure 1 , 2The upper magnetic ring yoke 3 and the lower magnetic ring yoke 14 are precisely butted through six buckle positions, the upper magnetic ring yoke 3 is embedded in the lower magnetic ring yoke 14 and is fixed, and the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14 are formed through high-precision plastic molding. The diaphragm assembly 8 is arranged between the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14, the diaphragm assembly 8 separates the inside of the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14, a plurality of magnetic rings are arranged above and below the diaphragm assembly 8, the upper center magnetic ring 7, the upper small magnetic ring 6, the upper middle magnetic ring 5 and the upper large magnetic ring 4 are arranged in the upper magnetic ring yoke 3 as a group, the lower center magnetic ring 10, the lower small magnetic ring 11, the lower middle magnetic ring 12 and the lower large magnetic ring 13 are arranged in the lower magnetic ring yoke 14 as a group, the thicknesses of the magnetic rings in each group are consistent in the horizontal direction, the diameters of the magnetic rings are sequentially increased from inside to outside, and the magnetic rings are arranged in a ring-shaped concentric structure in the vertical direction and are arranged in the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14. Two pieces of each of the center magnetic ring, the small magnetic ring, the middle magnetic ring and the large magnetic ring are independently magnetized to ensure the polarity accuracy. The specific polarity is that the upper large magnetic ring 4, the upper small magnetic ring 6, the lower large magnetic ring 13 and the lower small magnetic ring 11 are N poles, and the upper middle magnetic ring 5, the upper center magnetic ring 7, the lower middle magnetic ring 12 and the lower center magnetic ring 10 are S poles. The NSNS polarity arrangement design improves the uniformity of magnetic force coverage and improves sound distortion.

[0027] Further, the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14 are respectively provided with a plurality of layers of concentric ring grooves corresponding to the sizes of the magnetic rings, the magnetic rings are sequentially arranged in the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14 provided with the concentric grooves in size order, the structure grooves and point fixing are utilized to ensure that the magnetic rings are corresponded in the vertical direction and arranged in a concentric ring structure from inside to outside. The magnetic rings are fixed through nesting and point fixing to avoid deviation and looseness. The six buckle positions include six buckles 101 and six buckle grooves 102 arranged horizontally on the upper magnetic ring yoke 3 or the lower magnetic ring yoke 14 to improve the connection stability. The assembly tolerance of the buckle position is controlled within ±0.01mm to improve the assembly accuracy, and the whole is formed into a completely sealed upper and lower sound cavity after assembly through high-precision control. The assembly tolerance of the buckle position is controlled within ±0.01mm through high-precision mold manufacturing, engineering plastic selection control, injection molding parameter adjustment and precise detection means, so that the high adhesion connection between the magnetic ring yokes is realized, air leakage or displacement is avoided, and the air tightness and structural stability of the upper and lower sound cavities of the loudspeaker are ensured.

[0028] Further, 3M sealant 9 is arranged on both sides of the diaphragm assembly 8 to seal and assemble the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14. The trademark product is widely used in the sealing and anti-vibration of electronic devices, and has good adhesion, sealing and anti-vibration performance. In this technical solution, other brands of sealant with similar performance can also be used instead, and the 3M brand is not the only limitation. The diaphragm assembly 8 is a double-sided line plane diaphragm, and the soldering lead adopts a direct soldering structure, which means that the output lead of the diaphragm assembly is electrically connected to the pre-set soldering point (such as the embedded lead pad or electrode terminal in the upper and lower magnetic ring pot) in the speaker structure through direct soldering. Compared with the traditional winding connection, this direct soldering method has the advantages of simple structure, stable soldering point and small electrical performance loss, which helps to improve the product consistency and reliability; that is, the diaphragm electrode is directly welded to the conductive terminal or circuit by high-precision automatic welding equipment, realizing physical and electrical integrated fixed connection. Direct soldering forms a firm contact between metals, significantly reducing contact resistance and improving signal transmission efficiency. The soldering point is packaged with solder or other conductive alloys, which is not easy to be eroded by oxygen and moisture in the air, thus eliminating the conduction failure caused by oxidation from the source.

[0029] The soldering point structure is fixed and has strong anti-loosening ability, and it is not easy to loosen and fall off even under strong vibration or long-term use conditions, and is especially suitable for the high reliability requirements of sports or portable earphones. The soldering process can realize automatic control, and the soldering point position, temperature and soldering amount can be standardized, ensuring the consistency and quality stability of batch production.

[0030] Further, the 3M sealant 9 seals and bonds the diaphragm assembly 8 with the lower magnetic ring yoke 14 to form a first acoustic cavity; the upper magnetic ring yoke 3 is provided with an upper cover 1, which is sealed and connected to the upper magnetic ring yoke 3 by dispensing and forms a second acoustic cavity, so that the loudspeaker forms a closed double acoustic cavity structure. The diaphragm assembly 8 is the core structure of sound wave conversion, and the upper and lower sides thereof are respectively provided with 3M sealant 9 for realizing reliable airtight connection between the diaphragm assembly 8 and the upper magnetic ring yoke 3 and the lower magnetic ring yoke 14. The sealant not only plays a mechanical fixing role, but also bears the key functions of sealing the acoustic cavity, preventing sound wave leakage and reducing energy loss. The 3M sealant 9 makes the loudspeaker assembly simple and accurate, and the assembly gap of the loudspeaker is more accurate, the gap between the diaphragm and the magnetic ring is accurate to 0.02-0.025MM, and the accuracy of the product is improved. Batch production efficiency. The 3M sealant used is a high-performance, high-temperature-resistant, low-volatile annular glue, which is matched with the structure of the diaphragm assembly edge and the yoke in coating shape, ensuring uniform coverage and strong adhesion of the sealing surface. In terms of structure, the diaphragm assembly 8 is a double-sided line planar diaphragm, the upper and lower lines of which are realized by flexible printing process and directly connected with the conductive points through direct soldering lead design, which eliminates the traditional copper point contact structure, thereby effectively avoiding poor contact and oxidation circuit problems that may occur during long-term use, and significantly improving the electrical conductivity performance and product consistency. The structure simplifies the production process, enhances the structural stability, and at the same time reduces the space occupation, creating conditions for the compact design of the overall acoustic cavity. In the assembly process, the 3M sealant 9 seals and bonds the diaphragm assembly 8 to the lower magnetic ring yoke 14 to form a closed first acoustic cavity. The first acoustic cavity serves as the back cavity of the diaphragm, and the volume and damping parameters thereof are determined through precise calculation, so that the diaphragm can obtain better rebound characteristics and resonance control when working, thereby improving the mid-low frequency response and dynamic range. In addition, the upper magnetic ring yoke 3 is covered with an upper cover 1, which is sealed and connected to the upper magnetic ring yoke 3 by precise dispensing, enclosing a closed second acoustic cavity. The second acoustic cavity is located on the front side of the diaphragm and is a mirror image of the first acoustic cavity in structure, and works together in the acoustic system to improve the overall acoustic performance of the loudspeaker. The double acoustic cavity structure can effectively control the air flow balance of the sound wave on both sides of the diaphragm, reduce the sound phase interference and cavity resonance, and make the sound quality performance clearer and more stable, especially in improving the high frequency response and resolving power.

[0031] Further, the lower magnetic ring yoke 14 is provided with a protective steel mesh 15 on the outer side for preventing dust and foreign matter from entering, thereby improving durability and service life. The upper cover 1 is provided with a tuning mesh 2 for adjusting air circulation and optimizing frequency response characteristics. The outer diameter of the loudspeaker structure can be 8mm, 11mm or 15mm, realizing support for various outer diameter models and adaptation to different earphone product demands.

[0032] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An earphone speaker structure, characterized by: The utility model relates to a loudspeaker structure, including: The utility model relates to a loudspeaker structure, including: upper magnetic ring frame (3) and lower magnetic ring frame (14) realize precision butt joint through six buckle positions; diaphragm assembly (8) is arranged between upper magnetic ring frame (3) and lower magnetic ring frame (14); a plurality of magnetic rings, including upper center magnetic ring (7) and lower center magnetic ring (10), upper small magnetic ring (6) and lower small magnetic ring (11), upper medium magnetic ring (5) and lower medium magnetic ring (12), upper big magnetic ring (4) and lower big magnetic ring (13) respectively constitute two groups of upper and lower corresponding magnetic ring structure, the thickness of each group of magnetic ring is consistent in horizontal direction, and the diameter thereof increases gradually from inside to outside, and the groups are installed in the concentric ring structure in vertical direction in upper magnetic ring frame (3) and lower magnetic ring frame (14); 3M sealant (9) is arranged on the upper and lower sides of diaphragm assembly (8) and is used for the sealed assembly between upper magnetic ring frame (3) and lower magnetic ring frame (14); diaphragm assembly (8) is double-sided line plane diaphragm, and the lead wire is welded in a straight welding structure.

2. A headphone speaker structure according to claim 1, wherein: 3M sealant (9) seals and bonds diaphragm assembly (8) and lower magnetic ring frame (14) to form a first sound cavity; upper cover (1) is arranged on the outside of upper magnetic ring frame (3), upper cover (1) is connected with upper magnetic ring frame (3) through point sealing and forms a second sound cavity, so that the loudspeaker forms a closed double sound cavity structure.

3. The earphone speaker structure according to claim 1, wherein: Upper magnetic ring frame (3) and lower magnetic ring frame (14) are respectively provided with a plurality of concentric annular grooves corresponding to the size of each level of magnetic ring, and the magnetic ring is installed through nesting and point sealing to avoid deviation and looseness.

4. The earphone speaker structure according to claim 1, wherein: The six buckle positions include six buckles (101) and six buckle grooves (102) arranged horizontally on upper magnetic ring frame (3) or lower magnetic ring frame (14) to improve the connection stability.

5. A headphone speaker structure according to claim 4, wherein: The assembly tolerance of the buckle position is controlled within the range of plus or minus 0.01mm to improve the assembly accuracy.

6. The earphone speaker structure according to claim 1, wherein: 3M sealant (9) adopts an annular packaging structure to ensure the sealing property and vibration resistance.

7. The earphone speaker structure according to claim 1, wherein: The outside of lower magnetic ring frame (14) is provided with a protective steel mesh (15) for preventing dust and foreign matters from entering.

8. The earphone speaker structure according to claim 1, wherein: The outside of the upper magnetic ring is provided with a tuning net (2) for adjusting the air permeability of the loudspeaker.

9. The earphone speaker structure according to claim 1, wherein: The outer diameter of the loudspeaker structure can be 8mm, 11mm or 15mm, and the loudspeaker structure is suitable for integrated assembly of different types of earphones.

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