Miniature loudspeaker support with split structure

Abstract

The invention relates to the technical field of loudspeakers, in particular to a miniature loudspeaker support of a split structure. According to the miniature loudspeaker support, the upper support, the lower support and the damper assembly are sequentially aligned and matched, so that the assembly process is simplified, and the production efficiency is improved. And the middle ring of the damper assembly is accurately aligned with the plane of the lower bracket, so that the assembly is more convenient. According to the split structure design, the damper assembly is not easy to loosen in the long-term use process, the service life of the loudspeaker support is prolonged, and the maintenance cost is reduced. Through the integrated design of the damper assembly, sound distortion caused by multi-component assembly is reduced, and the sound quality performance of the loudspeaker is improved. The damper assembly can be assembled at a time, and compared with a traditional design that a plurality of dampers need to be assembled respectively, the efficiency of a production line is greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of loudspeakers, and in particular to a micro loudspeaker bracket with a split structure. Background Art

[0002] In modern audio equipment, dynamic micro speakers are widely used due to their excellent sound quality and miniaturization. However, with the continuous improvement of sound quality and performance requirements, the vibration system of the speaker still needs to maintain linear displacement vibration under large amplitude working conditions, which puts higher requirements on the design of the speaker.

[0003] To achieve this goal, a spring (also known as an auxiliary diaphragm) is usually added to the speaker's vibration system. The function of the spring is to enhance the linear response of the vibration system and improve the sound quality. However, the design and assembly of the spring face a series of challenges in actual production.

[0004] First, the back of the speaker stand must be equipped with a magnetic circuit system and vents. This requirement means that the back of the stand cannot be designed as an integral plane, which often causes interference between the spring and the stand, making it impossible to achieve a one-time overall assembly. To avoid this interference, the existing solution is to divide the spring into multiple parts (usually four or two) and assemble them one by one on the speaker stand. This grouped assembly method not only increases the complexity of the assembly process, but also reduces production efficiency.

[0005] Secondly, the material of the elastic wave is usually a soft film material, which further increases the difficulty of assembly. When assembling with the bracket, the requirements for flatness, symmetry and concentricity are relatively strict. If the assembly consistency of multiple elastic waves is poor (such as height difference, poor flatness or poor concentricity), it will directly affect the stability of the vibration system. Especially during the vibration displacement process, the system may cause swing vibration, making it impossible for the voice coil to move completely within the linear magnetic gap. Swinging vibration will not only cause friction between the inner side of the voice coil and the magnetic pole piece, and the outer side of the voice coil and the magnetic bowl or outer magnetic sheet, but may also generate mechanical noise, which will seriously affect the sound quality of the speaker, increase quality risks, and reduce production yields.

[0006] In summary, the current speaker design and assembly methods face problems of component interference and assembly consistency. These problems not only affect the sound quality performance, but also increase the complexity of the production process. Therefore, it is urgent to develop a new solution to improve the performance and manufacturing efficiency of the speaker. Summary of the invention

[0007] In order to solve the above problems, the present invention discloses a micro-speaker bracket with a split structure.

[0008] In order to achieve the above-mentioned purpose, the present application discloses a split structure micro speaker bracket, which specifically includes: Upper bracket; Lower bracket; A wave-spring assembly, the wave-spring assembly comprising a middle circle and a wave-spring body connected to the middle circle; One side of the lower bracket has a plane aligned with the middle ring; The upper bracket, the elastic wave assembly and the lower bracket are aligned and matched in sequence to fix the elastic wave assembly between the upper bracket and the lower bracket, and an escape space is arranged on the upper bracket and the lower bracket corresponding to the elastic wave body.

[0009] In addition, a positioning structure is provided between the upper bracket and the lower bracket, and the upper bracket is aligned with the lower bracket through the positioning structure.

[0010] The positioning structure includes a plurality of positioning grooves matched in pairs and positioning blocks matched with the positioning grooves. The plurality of positioning grooves and positioning blocks arranged in pairs are distributed on two opposite sides of the upper bracket and the lower bracket.

[0011] In a possible implementation manner, the elastic wave body on the middle ring is integrally formed.

[0012] A pressing surface that is aligned with and matched with the plane of the lower bracket is arranged on the upper bracket, and the middle ring is pressed and fixed by the pressing surface and the plane.

[0013] The outer side of the upper bracket is used to be connected to the diaphragm, and the other side of the lower bracket is used to align with the magnetic circuit component. A voice coil is arranged in the lower bracket, and the elastic wave body is further connected to the voice coil.

[0014] In a specific solution, a V-shaped groove is provided in the middle portion of the positioning block, and a V-shaped block is provided in the positioning groove and is matched with the V-shaped groove.

[0015] One side of the positioning groove has a guiding slope, and the positioning block is provided with a positioning slope corresponding to the guiding slope. When the positioning block is inserted into the positioning groove, the other side of the positioning block is pressed against the inner wall of the positioning groove through the cooperation of the guiding slope and the positioning slope.

[0016] A sawtooth structure is provided between the other side of the positioning block and the inner wall of the positioning groove, and the positioning block and the positioning groove are limited by the sawtooth structure.

[0017] The micro speaker bracket of the present application simplifies the assembly process and improves production efficiency by sequentially aligning the upper bracket, the lower bracket and the elastic wave component. The middle circle of the elastic wave component is precisely aligned with the plane of the lower bracket, making assembly more convenient.

[0018] The split structure design makes it difficult for the spring assembly to loosen during long-term use, which prolongs the service life of the speaker stand and reduces maintenance costs. The integrated design of the spring assembly reduces the sound distortion caused by the assembly of multiple parts and improves the sound quality of the speaker. The spring assembly can be assembled at one time, which greatly improves the efficiency of the production line and reduces production costs compared to the traditional design that requires the assembly of multiple springs separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the speaker bracket in the embodiment of the present application; Figure 2 This is a schematic diagram of the structure after the upper bracket, the elastic wave assembly and the lower bracket are assembled in the embodiment of the present application; Figure 3 A schematic diagram of the position of the diaphragm in the embodiment of the present application; Figure 4 This is a schematic diagram of the position of the magnetic circuit components in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the V-shaped groove and the V-shaped block in the embodiment of the present application; Figure 6 Schematic diagram of the position of the guide slope in the embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The principles and features of the present invention are described below in conjunction with the drawings. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0021] The terms "including" and other expressions with similar meanings in the specification or claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions, such as a process, method or system, or device comprising a series of steps or units is not limited to the listed steps or units.

[0022] Example 1: Figure 1-4 As shown, a split structure micro speaker bracket specifically includes: The upper bracket 100; the outer side of the upper bracket 100 is used to connect with the diaphragm 111, The lower bracket 101 has a plurality of grooves on its outer surface for aligning with the magnetic circuit assembly 112; The elastic wave assembly 102 includes a middle circle 103 and a elastic wave body 104 connected to the middle circle 103; the middle circle 103 is made of a highly elastic film material to ensure good linear displacement vibration under large amplitude.

[0023] To solve the problem that the traditional method of the damper cannot be assembled in one go, the damper body 104 on the middle circle 103 is integrally formed. The damper body 104 and the middle circle 103 are designed as an integral structure, which can avoid being divided into multiple parts, thereby simplifying the assembly process and improving consistency.

[0024] The inner side of the lower bracket 101 has a plane 105 that is aligned with the middle ring 103; The upper bracket 100, the elastic wave assembly 102 and the lower bracket 101 are aligned and matched in sequence to fix the elastic wave assembly 102 between the upper bracket 100 and the lower bracket 101, and an escape space 106 is provided on the upper bracket 100 and the lower bracket 101 corresponding to the elastic wave body 104 to ensure that the elastic wave body 104 does not contact the bracket during vibration. In a specific solution, the voice coil 113 is disposed in the lower bracket 101 , and the elastic wave body 104 is further connected to the voice coil 113 .

[0025] The upper bracket 100 is provided with a pressing surface 110 corresponding to the plane 105 of the lower bracket 101, and the middle ring 103 is pressed and fixed by the pressing surface 110 and the plane 105. The pressing surface 110 is arranged on the inner side of the upper bracket 100, and the specific position corresponds to the plane 105 on the lower bracket 101.

[0026] In the specific assembly process, firstly, the lower bracket 101 is placed on a flat workbench, and the magnetic circuit assembly 112 is fixed in its groove; Next, align the middle circle 103 of the damper assembly 102 with the plane 105 of the lower bracket 101 to ensure that the two are tightly combined; Then, the upper bracket 100 is aligned with the damper assembly 102 so as to be well aligned with the lower bracket 101 and the damper assembly 102 .

[0027] Then, the upper bracket 100 and the lower bracket 101 are fixed by screws or other fixing methods to ensure that the damper assembly 102 is firmly clamped therebetween.

[0028] Finally, check the flatness and symmetry of the entire assembly to ensure the consistency of the assembly.

[0029] By designing the elastic wave component as an integrated structure instead of dividing it into multiple parts, the complexity of the assembly process is greatly reduced, while avoiding the problems of height difference, poor flatness and concentricity caused by multiple assemblies in traditional methods.

[0030] In a possible implementation, the middle circle 103 is in the shape of a rounded rectangle, and a spring body 104 is provided at each of its four peripheral corners. A placement space for accommodating the voice coil 113 is formed between the four spring bodies 104 in the circumferential direction of the middle circle 103. The four spring bodies 104 are respectively used to be connected to the four peripheral corners of the voice coil 113 to fix it in the center position.

[0031] In another possible implementation, a spring body 104 is provided on two opposite sides of the center coil 103, and a placement space for accommodating the voice coil 113 is formed between the spring bodies 104 on both sides. The two spring bodies 104 are respectively used to be connected to the two opposite sides of the voice coil 113 to fix it in the center position.

[0032] At present, the industry needs to assemble 4 or 2 springs separately, while this solution only needs to assemble one integral spring. By optimizing it to an integral spring, its outer ring plane is assembled in coordination with the outer ring plane of the lower bracket, without interference from the surrounding structure of the bracket, and the flatness, symmetry and concentricity of the assembly are easier to achieve. This avoids the poor consistency of assembling 4 or 2 springs separately, which causes the vibration system to produce swing vibrations during the vibration displacement process, causing the voice coil to be unable to move linearly within the magnetic gap completely, generating swing vibrations. During the swing vibration of the voice coil, the inner side of the voice coil rubs against the magnetic pole piece, and the outer side of the voice coil rubs against the magnetic bowl, causing the speaker to produce mechanical noises.

[0033] It is optimized into a whole elastic wave, and the outer ring plane of the elastic wave is assembled with the outer ring plane of the lower bracket, which greatly optimizes the flatness, symmetry and concentricity of the assembly of the elastic wave and the lower bracket, and improves the production yield of the speaker.

[0034] The industry currently needs to assemble 4 or 2 springs separately, but this solution only requires the assembly of one entire spring, thereby improving production and assembly efficiency.

[0035] Example 2: Figure 1 As shown, in order to improve the alignment accuracy between the upper bracket 100 and the lower bracket 101 , a positioning structure 107 is provided between the upper bracket 100 and the lower bracket 101 , and the upper bracket 100 and the lower bracket 101 are aligned by the positioning structure 107 .

[0036] The positioning structure 107 includes a plurality of positioning grooves 108 that cooperate in pairs and positioning blocks 109 that align with the positioning grooves 108 . The plurality of positioning grooves 108 and positioning blocks 109 that are arranged in pairs are distributed on opposite sides of the upper bracket 100 and the lower bracket 101 .

[0037] Specifically, the positioning groove 108 may be provided on the upper bracket 100 , and the positioning block 109 may be provided on the lower bracket 101 ; or, the positioning block 109 may be provided on the upper bracket 100 , and the positioning groove 108 may be provided on the lower bracket 101 .

[0038] For example, the positioning grooves 108 are designed along the edge of the upper bracket 100 and are appropriately distributed to ensure multiple positioning points. The positioning blocks 109 correspond to the positioning grooves 108 and are arranged on the lower bracket 101. The positioning grooves 108 on the upper bracket 100 form a matching relationship with the positioning blocks 109 on the lower bracket 101. The positioning blocks are inserted into the corresponding grooves during assembly to ensure that the two are accurately aligned.

[0039] Example 3: Figure 5-6 As shown, in order to further optimize the positioning effect, a V-shaped groove 191 is provided in the middle portion of the positioning block 109 , and a V-shaped block 181 is provided in the positioning groove 108 to cooperate with the V-shaped groove.

[0040] When the positioning block 109 approaches the positioning groove 108, the V-shaped block 181 will guide the positioning block 109 to move into the V-shaped groove 191. Since the geometric shapes of the two fit each other, the positioning block 109 will automatically adjust its position during the insertion process to ensure that its center line is aligned with the center line of the positioning groove 108. The shape of the V-shaped groove 191 can effectively prevent the positioning block 109 from shifting during the insertion process, thereby ensuring the accuracy of positioning. Whether it is inserted vertically or obliquely, the V-shaped groove 191 can provide good guidance to ensure the stability of the final position of the positioning block 109.

[0041] In the above structure, the existence of the self-alignment mechanism significantly reduces the reliance on manual intervention, reduces the complexity of assembly, and improves assembly efficiency. This is especially important for large-scale production, which can significantly shorten the assembly time.

[0042] One side of the positioning groove 108 has a guiding bevel 182, and the positioning block 109 is provided with a positioning bevel 192 corresponding to the guiding bevel. When the positioning block 109 is inserted into the positioning groove 108, the other side of the positioning block 109 is pressed against the inner wall of the positioning groove 108 through the cooperation of the guiding bevel 192 and the positioning bevel 182.

[0043] As the positioning block 109 is inserted, the guide slope 182 can guide the positioning block 109 to move downward by its inclined setting. This process not only makes the positioning block 109 gradually fit to the inner wall of the positioning groove 108 to form a stable connection, but also ensures that the other side of the positioning block 109 is also firmly pressed, thereby achieving effective positioning in the vertical direction.

[0044] A sawtooth structure is provided between the other side of the positioning block 109 and the inner wall of the positioning groove 108, and the positioning block 109 and the positioning groove 108 are limited by the sawtooth structure. The sawtooth structure can be a row of sharp sawtooth shapes, alternately arranged on one side of the positioning block 109 and the inner wall of the positioning groove 108.

[0045] When the positioning block 109 is inserted into the positioning groove 108, the mutual engagement of the sawtooth structures forms a physical barrier to prevent the positioning block 109 from longitudinal displacement. This limiting effect can ensure that the component is not prone to loosening during long-term use and maintain its stability.

[0046] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A micro speaker bracket with a split structure, characterized in that: include: Upper bracket (100); Lower bracket (101); A spring assembly (102), the spring assembly comprising a middle circle (103) and a spring body (104) connected to the middle circle (103); One side of the lower bracket (101) has a plane (105) that is aligned with the middle ring (103); The upper bracket (100), the elastic wave assembly (102) and the lower bracket (101) are aligned and matched in sequence to fix the elastic wave assembly (102) between the upper bracket (100) and the lower bracket (101), and an escape space (106) is provided on the upper bracket (100) and the lower bracket (101) corresponding to the elastic wave body (104).

2. The micro speaker bracket according to claim 1, characterized in that: A positioning structure (107) is provided between the upper bracket (100) and the lower bracket (101), and the upper bracket (100) and the lower bracket (101) are aligned by means of the positioning structure (107).

3. The micro speaker bracket according to claim 2, characterized in that: The positioning structure (107) comprises a plurality of positioning grooves (108) arranged in pairs and positioning blocks (109) arranged to align with the positioning grooves (108); the plurality of positioning grooves (108) and positioning blocks (109) arranged in pairs are distributed on opposite sides of the upper bracket (100) and the lower bracket (101).

4. The micro speaker bracket according to claim 1, characterized in that: The elastic wave body (104) on the middle ring (103) is integrally formed.

5. The micro speaker bracket according to claim 1, characterized in that: A pressing surface (110) that is aligned with and matches the plane (105) on the upper bracket (100) and corresponds to the lower bracket (101) is provided, and the middle ring (103) is pressed and fixed by the pressing surface (110) and the plane (105).

6. The micro speaker bracket according to claim 1, characterized in that: The outer side of the upper bracket (100) is used to be connected to the diaphragm (111), and the other side of the lower bracket (101) is used to be aligned with the magnetic circuit component (112). A voice coil (113) is provided in the lower bracket (101), and the elastic wave body (104) is further connected to the voice coil (113).

7. The micro speaker bracket according to claim 2, characterized in that: A V-shaped groove (191) is provided in the middle portion of the positioning block (109), and a V-shaped block (181) is provided in the positioning groove (108) and is matched with the V-shaped groove.

8. The micro speaker bracket according to claim 7, characterized in that: One side of the positioning groove (108) is provided with a guiding inclined surface (182), and a positioning inclined surface (192) is provided on the positioning block (109) corresponding to the guiding inclined surface. When the positioning block (109) is inserted into the positioning groove (108), the other side of the positioning block (109) is pressed against the inner wall of the positioning groove (108) through the cooperation of the guiding inclined surface (192) and the positioning inclined surface (182).

9. The micro speaker bracket according to claim 8, characterized in that: A sawtooth structure is provided between the other side of the positioning block (109) and the inner wall of the positioning groove (108), and the positioning block (109) and the positioning groove (108) are limited by the sawtooth structure.

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