Voice coil positioner

Abstract

The utility model relates to the technical field of loudspeaker manufacturing, and discloses a voice coil positioner, which is used for assisting positioning assembly of a voice coil and a voice gauge, the voice coil comprises a voice coil wire and a framework arranged in the voice coil wire in a penetrating manner, and the voice coil positioner is characterized by comprising a seat body, a cylindrical accommodating cavity provided with an opening at one end, and a positioning device arranged in the accommodating cavity, the outer diameter of the accommodating cavity is larger than that of the framework of the voice coil so as to accommodate the framework and place the voice coil wire at the opening of the accommodating cavity; the positioning column is arranged in the containing cavity and comprises a bottom column and a middle column, the outer wall of the bottom column is attached to the inner wall of the containing cavity, a gap is reserved between the middle column and the inner wall of the containing cavity and used for penetrating of the voice gauge and the voice coil framework, the voice gauge is arranged on the middle column in a sleeving mode, and the middle column is used for limiting the relative position of the voice gauge and the voice coil. According to the utility model, the design of the seat body and the positioning column of the voice coil positioner is adopted, so that the voice coil and the voice gauge can be conveniently assembled.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeaker manufacturing technology, specifically relating to a voice coil positioner. Background Technology

[0002] In the manufacturing process of loudspeakers, the precise positioning of the voice coil is crucial. As one of the key components of a loudspeaker, the relative position of the voice coil to the tone gauge directly affects the loudspeaker's performance.

[0003] In existing technologies, the positioning and assembly of voice coils often faces numerous challenges. Traditional voice coil positioning methods mostly rely on manual operation. During manual operation, due to differences in individual worker skills and fatigue, it is difficult to accurately and quickly set the relative position of the voice coil winding and the tone gauge. This results in the inconsistency of voice coil assembly position during the mass production of loudspeakers, and the voice coil assembly position of each loudspeaker may deviate.

[0004] Such misalignment in assembly position directly causes fluctuations in the characteristics of batches of loudspeakers. Simultaneously, fluctuations will occur in sensitivity, power handling capacity, and other aspects, leading to inconsistent product quality and a higher defect rate. This not only increases production costs but also affects the product's competitiveness in the market. Traditional positioning methods are inefficient and cannot meet the demands of large-scale, high-efficiency modern production. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a voice coil positioner. Through the design of the seat and positioning post of the voice coil positioner, the assembly of the tone gauge and voice coil can effectively avoid the problem of misalignment during production, and can also meet the needs of large-scale, high-efficiency modern production.

[0006] The technical effects to be achieved by this utility model are realized through the following aspects:

[0007] This utility model provides a voice coil positioner for assisting in the positioning and assembly of a voice coil and a tone gauge. The voice coil includes a voice coil wire and a frame passing through the voice coil wire. The feature is that it includes:

[0008] The base has a cylindrical receiving cavity with one open end. The diameter of the receiving cavity is smaller than the outer diameter of the voice coil wire but larger than the outer diameter of the voice coil frame, so as to accommodate the frame and place the voice coil wire at the opening of the receiving cavity; and

[0009] A positioning post is placed inside the accommodating cavity. The positioning post includes a bottom post and a middle post. The outer wall of the bottom post fits against the inner wall of the accommodating cavity. A gap is reserved between the middle post and the inner wall of the accommodating cavity for the passage of the tone gauge and the voice coil skeleton. The tone gauge is fitted on the middle post, and the middle post is used to define the relative position of the tone gauge and the voice coil.

[0010] In some implementations, the inner side of the pitch gauge has a limiting platform, and the central column protrudes from the receiving cavity and is used to abut against the limiting platform.

[0011] In some implementations, the positioning post further includes a top post, which is located at the top of the middle post and extends into the inner side of the limiting platform for positioning the inner side of the limiting platform.

[0012] In some implementations, the top edge of the top post is provided with a guide slope.

[0013] In some implementations, the gap between the outer diameter of the top column and the inner side of the limiting platform is D1, where 0mm≤D1≤0.1mm.

[0014] In some implementations, the seat body further includes an annular boss located at the opening of the accommodating cavity, the inner diameter of which is adapted to the outer diameter of the voice coil wire.

[0015] In some implementations, the gap between the inner wall of the annular boss and the voice coil wire is D2, where 0mm≤D2≤0.05mm.

[0016] In some implementations, the annular boss is integrally formed with the base.

[0017] In some implementations, the positioning post and the base are fixedly connected by fasteners.

[0018] In some implementations, the relative height between the positioning post and the base is adjustable.

[0019] In summary, this utility model has at least the following advantages:

[0020] The voice coil positioner provided by this utility model features a design where the base and positioning post cooperate with each other. A gap is reserved in the receiving cavity for the insertion of the voice coil and tone gauge. The voice coil skeleton is inserted into the receiving cavity, and the position is limited by the voice coil wire abutting against the top surface of the base. The tone gauge passes through the voice coil and is inserted into the receiving cavity, then fitted onto the central post of the positioning post. This allows the voice coil and tone gauge to be engaged in a predetermined position during assembly, creating a certain height difference. This reduces the need for manual measurement and positioning, improves the production efficiency of voice coil and tone gauge assembly, avoids inconsistencies caused by manually measuring and adjusting the height difference, and reduces product quality fluctuations, meeting the needs of large-scale, high-efficiency modern production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the voice coil positioner, voice coil, and tone gauge explosion structure of Embodiment 1 of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall assembly structure and cross-sectional view AA of Embodiment 1 of this utility model.

[0023] Figure 3 This is a schematic diagram of the voice coil positioner structure and BB cross-section of Embodiment 2 of this utility model.

[0024] Figure 4 This is a schematic diagram of the overall assembly structure and CC cross-section of Embodiment 3 of this utility model.

[0025] Marked in the image:

[0026] 1. Base; 11. Receiving cavity; 12. Annular boss; 2. Positioning post; 21. Bottom post; 22. Middle post; 23. Top post; 3. Voice coil; 31. Voice coil wire; 32. Frame; 4. Tone gauge; 41. Limiting platform. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please see Figure 1 This utility model discloses a voice coil positioner for assisting in the positioning and assembly of a voice coil 3 and a tone gauge 4. The voice coil 3 includes a voice coil wire 31 and a frame 32 passing through the voice coil wire 31. It includes: a base 1 with a cylindrical accommodating cavity 11 that is open at one end. The diameter of the accommodating cavity 11 is smaller than the outer diameter of the voice coil wire 31 and larger than the outer diameter of the frame 32 of the voice coil 3, so as to accommodate the frame 32 and place the voice coil wire 31 at the opening of the accommodating cavity 11; and a positioning post 2, which is placed in the accommodating cavity 11. The positioning post 2 includes a bottom post 21 and a middle post 22. The outer wall of the bottom post 21 fits against the inner wall of the accommodating cavity 11. A gap is reserved between the middle post 22 and the inner wall of the accommodating cavity 11 for the passage of the tone gauge 4 and the voice coil 3 frame 32. The tone gauge 4 is fitted on the middle post 22, and the middle post 22 is used to define the relative position of the tone gauge 4 and the voice coil 3.

[0031] Specifically, the voice coil positioner consists of two parts: a base 1 and a positioning post 2. It assists in the positioning and assembly of the voice coil 3 and tone gauge 4 during loudspeaker production, ensuring accurate and efficient assembly. The base 1 is the basic support component of the voice coil positioner. A cylindrical receiving cavity 11 is provided on the main body of the base 1, with one end open to provide space for the installation of the positioning post 2. The bottom post 21 of the positioning post 2 has the same diameter as the receiving cavity 11, ensuring a tight fit between the outer wall of the bottom post 21 and the inner wall of the receiving cavity 11. This fit design ensures the stability of the positioning post 2 within the receiving cavity 11 of the base 1, preventing wobbling or displacement of the positioning post 2 during use. Furthermore, a gap is reserved between the middle post 22 of the positioning post 2 and the inner wall of the receiving cavity 11. The size of this gap is just enough to allow the tone gauge 4 and the voice coil 3 frame 32 to pass through smoothly, but its inner diameter is smaller than the outer diameter of the voice coil wire 31 of the voice coil 3.

[0032] During use, the voice coil 3 is first placed inside the receiving cavity 11. The voice coil 3 is inserted through the skeleton 32 of the voice coil 3. The skeleton 32 plays a positioning role, while the voice coil wire 31 of the voice coil 3 is obstructed. The voice coil wire 31 is limited at the top of the seat 1 and plays a supporting role for the voice coil 3. The pitch gauge 4 can be placed on the center post 22. The center post 22 mainly plays a limiting role for the pitch gauge 4 so that the pitch gauge 4 and the voice coil 3 can form a certain height difference. The outer wall of the pitch gauge 4 fits against the inner wall of the skeleton 32 of the voice coil 3. As the pitch gauge 4 is inserted, the voice coil 3 moves relative to the pitch gauge 4 due to the limiting effect, thereby achieving height adjustment between the pitch gauge 4 and the pitch gauge 4.

[0033] In this embodiment, the tone gauge 4 positioner of this application uses a base and a positioning post 2 to cooperate. The gap between the two is used to complete the positioning between the voice coil 3 and the tone gauge 4, thereby achieving a uniform height difference for each voice coil 3 on the tone gauge 4, so as to complete the assembly and production of the voice coil 3 and the tone gauge 4, reduce the error caused by human measurement, and the convenient assembly method can improve production efficiency and meet the needs of large-scale, high-efficiency modern production.

[0034] Example 2:

[0035] This embodiment is a further structural optimization of the positioning post 2 of the practical voice coil positioner. Please refer to [link / reference]. Figure 2 and Figure 3 .

[0036] In some embodiments, the inner side of the tone gauge 4 has a limiting platform 41, and the central column 22 protrudes from the receiving cavity 11 and is used to abut against the limiting platform 41 to achieve the limiting function of the tone gauge 4. The design height of the central column 22 of the positioning column 2 can affect the relative position between the tone gauge 4 and the voice coil 3. If the height of the voice coil wire 31 of the voice coil 3 is not appropriate, it will lead to uneven frequency response of the speaker, and may also cause problems such as high-frequency distortion and insufficient bass.

[0037] Preferably, the protruding height of the central post 22 of the voice coil positioner is equal to the height of the T-post minus the thickness of the magnet, then minus the thickness of the washer, then adding half of the washer thickness, and finally adding half of the winding height.

[0038] In some embodiments, the positioning post 2 further includes a top post 23, which is disposed at the top of the middle post 22 and extends into the inner side of the limiting platform 41 for positioning the inner side of the limiting platform 41.

[0039] Specifically, the positioning post 2 comprises three parts: a bottom post 21, a middle post 22, and a top post 23. These three parts are connected sequentially and integrally formed in a stepped shape. The diameter of the middle post 22 is smaller than that of the bottom post 21, and the difference is sufficient for the voice coil 3's frame 32 and the tone gauge 4 to be inserted. The diameter of the top post 23 is smaller than that of the middle post 22. The top post 23 extends into the inner side of the limiting platform 41 in the tone gauge 4. The top post 23 guides the insertion of the tone gauge 4 and also positions it, thus solving the accuracy problem during insertion and preventing the tone gauge 4 from colliding with the voice coil 3's frame 32, which would further affect the product quality. It is understandable that the bottom post 21, middle post 22, and top post 23 are an integrated structure, thereby ensuring the overall stability of the voice coil positioner and reducing the possibility of height errors due to positioning during production and assembly.

[0040] Furthermore, the top edge of the top post 23 is provided with a guide slope to facilitate the fitting of the tone gauge 4. During installation, the tone gauge 4 needs to be fitted onto the top post 23 of the positioning post 2, and the guide slope acts as a guide, making it easier for the tone gauge 4 to align with the top post 23 and fit smoothly. This avoids installation difficulties caused by the tone gauge 4 not being accurately aligned with the top post 23, which could even affect production efficiency. Moreover, the slope is a gradually transitioning structure, and the tone gauge 4 will naturally slide into the top post 23 along the direction of the slope after contacting it, reducing wear or deformation caused by direct impact.

[0041] To ensure a better fit while facilitating installation and disassembly, in some embodiments, the gap between the outer diameter of the top post 23 and the inner side of the limiting platform 41 is D1, where 0mm≤D1≤0.1mm.

[0042] Specifically, the top post 23 serves as a guide, and its size should fit as closely as possible to the inner wall of the limiting platform 41. If the gap between the two is too large, it will be detrimental to the assembly of the voice coil 3 and the tone gauge 4, which will lead to inaccurate positioning and affect production efficiency. Preferably, the gap difference is 0.1mm, which can ensure that the tone gauge 4 obtains high positioning accuracy after being fitted into the top post 23, while also facilitating positioning and assembly.

[0043] In this embodiment, the positioning post 2 of the voice coil positioner is used to cooperate with the base 1 to position the voice coil 3 and the tone gauge 4. The positioning post 2 is layered to limit the position of the tone gauge 4. The top surface of the middle post 22 abuts against the corresponding structure inside the tone gauge 4 to form a limit. The diameter of the middle post 22 is smaller than that of the bottom post 21. The difference between the two is used for the insertion of the voice coil 3's frame 32 and the tone gauge 4. By adjusting the height of the middle post 22, the voice coil wire 31 of the voice coil 3 is placed at a suitable height, improving the sound quality performance of the loudspeaker. On the other hand, the top post 23 of the positioning post 2 guides the tone gauge 4, which can reduce errors in the assembly process, avoid collisions between the tone gauge 4 and the voice coil 3's frame 32, improve production efficiency, and ensure the quality stability of the product while meeting the requirements of large-scale production.

[0044] Example 3:

[0045] This embodiment further optimizes the structure of the positioning post 2 of the voice coil positioner based on the above embodiment. Please refer to [link to previous embodiment]. Figure 4 .

[0046] In some embodiments, the seat 1 further includes an annular boss 12, which is disposed at the opening of the accommodating cavity 11, and the inner diameter of the annular boss 12 is adapted to the outer diameter of the voice coil wire 31.

[0047] Specifically, the annular boss 12 is coaxially arranged with the receiving cavity 11 and is located on one side of the opening of the receiving cavity 11. The diameter of the annular boss 12 is larger than the diameter of the opening of the receiving cavity 11 so that the top surface of the base can abut against the voice coil wire 31 of the voice coil 3 to achieve the limiting of the voice coil 3. The inner wall of the annular boss 12 abuts against the outer ring of the voice coil wire 31 of the voice coil 3, which can play a positioning role and ensure that the voice coil wire 31 of the voice coil 3 is located in the center position, which facilitates the subsequent insertion and assembly of the tone gauge 4.

[0048] In some embodiments, the gap between the inner wall of the annular boss 12 and the voice coil wire 31 is D2, where 0mm≤D2≤0.05mm.

[0049] Specifically, a certain gap is reserved between the annular boss 12 and the voice coil wire 31 to allow for preliminary screening of the voice coils 3, selecting those that are deformed or poorly manufactured, resulting in an outer diameter exceeding the specifications. Preferably, the gap reserved by the annular boss 12 is 0.05mm, ensuring that the voice coil 3 does not affect the product quality within a certain error range.

[0050] To enhance structural stability, in some embodiments, the annular boss 12 is integrally formed with the base 1.

[0051] In some embodiments, the positioning post 2 and the base 1 are fixedly connected by fasteners.

[0052] Specifically, the bottom center of the base 1 is provided with a mounting hole that penetrates the base 1 and connects to the receiving cavity 11. The bottom of the positioning post 2 is provided with a threaded hole corresponding to the mounting hole. The fixed connection between the positioning post 2 and the base 1 is achieved by using threaded fasteners, which can effectively prevent the positioning post 2 from shifting and affecting the positioning assembly.

[0053] It is understood that the above-mentioned fixing method of positioning post 2 and base 1 is only for example. In actual applications, other fixing methods can also be used to fix positioning post 2 on base 1, so as to facilitate the assembly of tone gauge 4 and voice coil 3. This application does not limit this.

[0054] To accommodate speakers of different specifications, in some embodiments, the relative height between the positioning post 2 and the base 1 is adjustable. The positioning post 2 can be adjusted in height by fasteners or by replacing positioning posts 2 of different heights. This allows for adjustment of the relative height difference between the voice coil 3 and the tone gauge 4 during assembly, thus meeting the production needs of assembling various specifications.

[0055] In this embodiment, the base of the voice coil positioner, through the design of the annular boss 12, can screen the voice coil 3 in advance during assembly, avoiding the assembly of defective voice coil 3 and tone gauge 4, which would affect the sound quality of the product. The base 1 is fixed to the positioning post 2 by the threaded fastener, and the center post 22 of the base 1 can be finely adjusted by adjusting the rotation angle of the threaded fastener, thereby adjusting the relative position and height of the voice coil 3 and tone gauge 4 to adapt to the production needs of speakers of different specifications.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A voice coil positioner for assisting in the positioning and assembly of a voice coil and a tone gauge, wherein the voice coil includes a voice coil wire and a frame passing through the voice coil wire, characterized in that, include: The base has a cylindrical receiving cavity with one open end. The diameter of the receiving cavity is smaller than the outer diameter of the voice coil wire but larger than the outer diameter of the voice coil frame, so as to accommodate the frame and place the voice coil wire at the opening of the receiving cavity; and A positioning post is placed inside the accommodating cavity. The positioning post includes a bottom post and a middle post. The outer wall of the bottom post fits against the inner wall of the accommodating cavity. A gap is reserved between the middle post and the inner wall of the accommodating cavity for the passage of the tone gauge and the voice coil skeleton. The tone gauge is fitted on the middle post, and the middle post is used to define the relative position of the tone gauge and the voice coil.

2. The voice coil positioner according to claim 1, characterized in that, The inner side of the pitch gauge has a limiting platform, and the central column protrudes from the accommodating cavity and is used to abut against the limiting platform.

3. The voice coil positioner according to claim 2, characterized in that, The positioning post also includes a top post, which is located at the top of the middle post and extends into the inner side of the limiting platform for positioning the inner side of the limiting platform.

4. The voice coil positioner according to claim 3, characterized in that, The top edge of the top column is provided with a guide slope.

5. The voice coil positioner according to claim 3, characterized in that, The gap between the outer diameter of the top column and the inner side of the limiting platform is D1, where 0mm≤D1≤0.1mm.

6. The voice coil positioner according to claim 1, characterized in that, The seat also includes an annular boss, which is located at the opening of the accommodating cavity, and the inner diameter of the annular boss is adapted to the outer diameter of the voice coil wire.

7. The voice coil positioner according to claim 6, characterized in that, The gap between the inner wall of the annular boss and the voice coil wire is D2, where 0mm≤D2≤0.05mm.

8. The voice coil positioner according to claim 6 or 7, characterized in that, The annular boss is integrally formed with the base.

9. The voice coil positioner according to claim 1, characterized in that, The positioning post and the base are fixedly connected by fasteners.

10. The voice coil positioner according to claim 9, characterized in that, The relative height between the positioning post and the base is adjustable.

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