Diaphragm structure and sound generating device
By introducing a reinforcing ring into the speaker diaphragm structure, the problem of low diaphragm split vibration frequency is solved, the high-frequency sensitivity and bandwidth are improved, and the stability and reliability of the diaphragm are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG GOERDYNA TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-31
AI Technical Summary
The thin diaphragm material of existing loudspeakers results in a low split vibration frequency, affecting high-frequency sensitivity and effective bandwidth.
A reinforcing ring is introduced into the diaphragm structure to increase the thickness between the diaphragm body and the folded ring. The split vibration frequency of the diaphragm is increased by connecting the reinforcing ring and the diaphragm body by means of bonding or welding.
It increases the split vibration frequency of the diaphragm, widens the effective bandwidth, and improves high-frequency sensitivity and speaker stability.
Smart Images
Figure CN224583300U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of loudspeaker technology, specifically relating to a diaphragm structure and a sound-generating device. Background Technology
[0002] Currently, the diaphragm material of existing loudspeaker products is a metal sheet of uniform thickness. In order to obtain a higher sensitivity, the diaphragm thickness of the tweeter is usually set to less than 0.05mm. However, due to the thinness, the overall strength of the diaphragm is weak, which in turn leads to a lower split vibration frequency of the diaphragm. Utility Model Content
[0003] The purpose of this invention is to at least solve the problem of low vibration frequency of existing diaphragm splitting technology. This purpose is achieved through the following technical solution:
[0004] The first aspect of this utility model provides a diaphragm structure, comprising:
[0005] Diaphragm body;
[0006] The fold includes a first ring body portion and a second ring body portion, the first ring body portion surrounding the outer periphery of the diaphragm body, and the second ring body portion connected to the circumferential edge of the first ring body portion on the side opposite to the diaphragm body;
[0007] A reinforcing ring is disposed between the first ring body and the diaphragm body, and surrounds the outer periphery of the diaphragm body.
[0008] By using the diaphragm structure in this technical solution, a reinforcing ring is placed between the diaphragm body and the first ring portion of the folded ring, which can strengthen the thickness of the diaphragm body corresponding to the first ring portion and increase the split vibration frequency of the diaphragm body and the diaphragm structure, thereby improving high-frequency sensitivity and widening the effective bandwidth.
[0009] In addition, the diaphragm structure of this utility model may also have the following additional technical features:
[0010] In some embodiments of this utility model, the minimum inner diameter of the reinforcing ring is d1, and the outer diameter of the diaphragm body is d2, wherein d1 ≥ 0.7 * d2.
[0011] In some embodiments of this utility model, the minimum inner diameter of the first ring body is greater than or equal to the minimum inner diameter of the reinforcing ring.
[0012] In some embodiments of this utility model, the thickness of the reinforcing ring is D1, and the thickness of the diaphragm body is D2, wherein 0.5*D2<D1<1.5*D2.
[0013] In some embodiments of this utility model, the diaphragm body is a metal part.
[0014] In some embodiments of this utility model, the reinforcing ring is a metal part.
[0015] In some embodiments of this invention, the Young's modulus of the reinforcing ring is greater than 70 GPa.
[0016] In some embodiments of this utility model, the reinforcing ring and the first ring body are bonded together.
[0017] In some embodiments of this utility model, the reinforcing ring and the diaphragm body are bonded or welded together.
[0018] The second aspect of this utility model provides a sound-generating device having the aforementioned diaphragm structure. Attached Figure Description
[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0020] Figure 1 A schematic diagram of the diaphragm structure according to an embodiment of the present invention is shown.
[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the diaphragm structure along the AA direction;
[0022] Figure 3 for Figure 2 A magnified structural diagram of section B.
[0023] The labels in the attached diagram are as follows:
[0024] 100. Diaphragm structure;
[0025] 10. Diaphragm body;
[0026] 20. Folded ring; 21. First ring body; 22. Second ring body;
[0027] 30. Reinforcing ring. Detailed Implementation
[0028] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0029] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.
[0030] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.
[0031] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.
[0032] Currently, the diaphragm material of existing loudspeaker products is a metal sheet of uniform thickness. In order to obtain a higher sensitivity, the diaphragm thickness of the tweeter is usually set to less than 0.05mm, so that the breakover frequency of the entire diaphragm is between 20k-30k (depending on the diaphragm material / thickness / geometry), which in turn results in a lower breakover frequency of the diaphragm.
[0033] Figure 1 A schematic diagram of the diaphragm structure 100 according to an embodiment of the present invention is shown. Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the diaphragm structure along the 100A-A direction. Figure 3 for Figure 2 A magnified structural diagram of section B. (See diagram below.) Figure 1 , 2 As shown in Figure 3, this utility model proposes a diaphragm structure 100 and a sound-generating device. The diaphragm structure 100 of this utility model includes a diaphragm body 10, a folded ring 20, and a reinforcing ring 30. The folded ring 20 includes a first ring body portion 21 and a second ring body portion 22. The first ring body portion 21 surrounds the outer periphery of the diaphragm body 10, and the second ring body portion 22 is connected to the circumferential edge of the first ring body portion 21 on the side away from the diaphragm body 10. The reinforcing ring 30 is disposed between the first ring body portion 21 and the diaphragm body 10 and surrounds the outer periphery of the diaphragm body 10.
[0034] By using the diaphragm structure 100 in this technical solution, the reinforcing ring 30 is disposed between the diaphragm body 10 and the first ring body portion 21 of the folded ring 20, which can strengthen the thickness of the diaphragm body 10 corresponding to the first ring body portion 21 and increase the split vibration frequency of the diaphragm body 10 and the diaphragm structure 100, thereby improving the high-frequency sensitivity and widening the effective bandwidth.
[0035] Specifically, in this embodiment, the diaphragm body 10 has a dome-shaped structure and a cavity is formed inside the diaphragm body 10. The first ring body 21 is connected to the outer edge surface of the diaphragm body 10, and the reinforcing ring 30 is disposed between the first ring body 21 and the diaphragm body 10, which increases the thickness of the diaphragm body 10 corresponding to the first ring body 21, making the overall diaphragm body 10 a non-uniform structure, thereby increasing the split vibration frequency of the diaphragm body 10 and the diaphragm structure 100, improving high-frequency sensitivity, and widening the effective bandwidth.
[0036] In some embodiments of this utility model, the minimum inner diameter of the reinforcing ring 30 is d1, and the outer diameter of the diaphragm body 10 is d2, wherein d1 ≥ 0.7 * d2. In this embodiment, the above arrangement ensures that the area of the reinforcing ring 30 attached to the diaphragm body 10 is within a certain range, guaranteeing that the reinforcing ring 30 improves the segmented vibration frequency of the diaphragm body 10 without affecting other characteristics of the diaphragm structure 100, thus improving reliability.
[0037] In some embodiments of this utility model, such as Figure 3 As shown, the minimum inner diameter of the first ring body 21 is greater than or equal to the minimum inner diameter of the reinforcing ring 30. In this embodiment, the above-mentioned arrangement enables the first ring body 21 and the reinforcing ring 30 to fit together completely, thereby improving the connection strength between the first ring body 21 and the reinforcing ring 30, and improving the stability and reliability of the first ring body 21 and the reinforcing ring 30.
[0038] In some embodiments of this utility model, the thickness of the reinforcing ring 30 is D1, and the thickness of the diaphragm body 10 is D2, wherein 0.5*D2 < D1 < 1.5*D2. In this embodiment, the above arrangement ensures that the thickness of the reinforcing ring 30 disposed between the diaphragm body 10 and the first ring body portion 21 is within a reasonable range. While ensuring the thickness of the diaphragm body 10 corresponding to the first ring body portion 21 is increased, the thickness of the diaphragm body 10 is not made too large. If the thickness of the diaphragm body 10 is too large, it will lead to excessive diaphragm weight and reduced speaker sensitivity.
[0039] In some embodiments of this utility model, the diaphragm body 10 is a metal part. In this embodiment, making the diaphragm body 10 a metal part enables the diaphragm structure 100 to have excellent rigidity, widens the effective frequency range of the loudspeaker, and is suitable for use in the tweeter unit of a high-end loudspeaker.
[0040] In some embodiments of this utility model, the reinforcing ring 30 is a metal part. In this embodiment, the reinforcing ring 30 is made of metal. Metal reinforcing rings 30 generally have high strength and durability, providing robust support and structural stability. At the same time, the metal reinforcing ring 30 provides robust support and structural stability, which helps maintain the stability and performance of the speaker during long-term use.
[0041] Specifically, in this embodiment, the reinforcing ring 30 can be made of aluminum-magnesium alloy or titanium alloy, both of which can provide robust support and structural stability, and can also provide robust support and structural stability heat, which helps to maintain the stability and performance of the speaker during long-term use.
[0042] In some embodiments of this invention, the Young's modulus of the reinforcing ring 30 is greater than 70 GPa. In this embodiment, materials with a Young's modulus greater than 70 GPa exhibit minimal deformation under stress, ensuring the reinforcing ring 30 maintains a stable shape during high-frequency vibrations, reducing nonlinear distortion. Furthermore, high Young's modulus materials can respond quickly to changes in electrical signals, reducing mechanical hysteresis and resulting in clearer sound. High-modulus materials can also withstand higher power without thermal deformation or fatigue damage, improving reliability.
[0043] In some embodiments of this invention, the reinforcing ring 30 and the first ring body 21 are bonded together. Compared to welding, bonding eliminates the need to consider differences in metal melting points or thermal deformation, and supports more material combinations (such as a combination of the metal reinforcing ring 30 and the polymer folded ring 20). Furthermore, compared to the rigid constraints of welding connections which can lead to a "sharp" sound in high frequencies, bonding provides a smoother transition. In some embodiments of this invention, the reinforcing ring 30 and the diaphragm body 10 are welded together. In this embodiment, the reinforcing ring 30 and the diaphragm body 10 can be welded together. Welding ensures a strong connection between the reinforcing ring 30 and the diaphragm body 10, reducing energy loss during transmission and thus improving sound transmission efficiency. This strong connection helps maintain stable diaphragm vibration, resulting in clearer and more powerful sound.
[0044] In some embodiments of this invention, the reinforcing ring 30 and the diaphragm body 10 are bonded together. Compared to welding, bonding eliminates the need to consider differences in metal melting points or thermal deformation, and supports more material combinations (such as a combination structure of the metal diaphragm body 10 and the polymer reinforcing ring 30). Furthermore, compared to the rigid constraints of welding connections that can lead to a "sharp" sound in high frequencies, bonding provides a smoother transition.
[0045] Furthermore, this utility model adds a reinforcing ring 30 (the material can be the same as or different from the diaphragm body 10, and the thickness is 0.5-1.5 times that of the diaphragm body 10) to the diaphragm structure 100 and assembles it onto the diaphragm body 10 by glue or other processes such as friction welding, thereby increasing the strength of the area and improving the split vibration frequency of the diaphragm.
[0046] This utility model also proposes a sound-generating device having the above-mentioned diaphragm structure 100.
[0047] By using the diaphragm structure 100 of the sound-generating device in this technical solution, the reinforcing ring 30 is disposed between the diaphragm body 10 and the first ring body portion 21 of the folded ring 20, which can strengthen the thickness of the diaphragm body 10 corresponding to the first ring body portion 21 and increase the split vibration frequency of the diaphragm body 10 and the diaphragm structure 100, thereby improving the high-frequency sensitivity and widening the effective bandwidth.
[0048] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A diaphragm structure, characterized by, include: Diaphragm body; The fold includes a first ring body portion and a second ring body portion, the first ring body portion surrounding the outer periphery of the diaphragm body, and the second ring body portion connected to the circumferential edge of the first ring body portion on the side opposite to the diaphragm body; A reinforcing ring is disposed between the first ring body and the diaphragm body, and surrounds the outer periphery of the diaphragm body.
2. The diaphragm structure of claim 1, wherein, The minimum inner diameter of the reinforcing ring is d1, and the outer diameter of the diaphragm body is d2, wherein d1 ≥ 0.7 * d2.
3. The diaphragm structure of claim 1, wherein, The minimum inner diameter of the first ring body is greater than or equal to the minimum inner diameter of the reinforcing ring.
4. The diaphragm structure of claim 1, wherein, The thickness of the reinforcing ring is D1, and the thickness of the diaphragm body is D2, wherein 0.5*D2<D1<1.5*D2.
5. The diaphragm structure of claim 1, wherein, The diaphragm body is a metal component.
6. The diaphragm structure of claim 1, wherein, The reinforcing ring is a metal component.
7. The diaphragm structure of claim 6, wherein, The Young's modulus of the reinforcing ring is greater than 70 GPa.
8. The diaphragm structure of claim 1, wherein, The reinforcing ring and the first ring body are bonded together.
9. The diaphragm structure of claim 1, wherein, The reinforcing ring and the diaphragm body are connected by adhesive bonding or welding.
10. A sound producing device, characterized by It has a diaphragm structure according to any one of claims 1-9.