Audio dynamic expansion vibrating diaphragm
By adding a diaphragm to the speaker unit to form a dual-diaphragm coupled vibration structure, the problem of insufficient frequency domain of miniaturized speaker units is solved, realizing the expansion of the audio frequency domain and the improvement of sound quality, thereby enhancing the sense of presence and sound quality performance of the audio system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 谢澄沄
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-21
AI Technical Summary
After miniaturization, traditional speaker units have a small vibrating area, resulting in insufficient loudness and dynamics in the frequency range, limited bandwidth, and a lack of sound detail, which cannot meet consumers' high requirements for sound quality.
A dual-diaphragm coupled vibration structure is designed. By connecting the speaker unit diaphragm and the additional diaphragm, a suspended configuration is formed. The synergistic vibration of the two is used to expand the audio frequency range and improve the sound quality.
It achieves a wide extension of the audio frequency range, a wider soundstage, improved realism of the scene, more obvious sound performance, and richer sound quality details.
Smart Images

Figure CN224154342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of audio equipment and loudspeakers, and in particular to an audio dynamic extension diaphragm that connects to the diaphragm of a loudspeaker unit to form a dual-diaphragm coupled vibration structure, thereby extending the audio frequency range, widening the sound field, and enhancing the realism of the presence. Background Technology
[0002] The speaker unit is one of the most important components of a sound system, with wide and ubiquitous applications, especially in consumer electronics. As a result, the public's expectations and demands for sound quality are also increasing.
[0003] For decades, there haven't been many groundbreaking technologies in speaker units. The most significant changes have been in the use of new materials in the diaphragm to improve sound quality, rather than using its mechanical and physical properties to optimize the sound effect.
[0004] A traditional speaker unit is a device that converts electronic audio signals and uses physical principles to vibrate and move air to produce sound. This design aims to improve the vibration mode of traditional speaker units in order to more efficiently enhance sound quality.
[0005] In addition, due to changes in consumer demand, audio equipment is becoming increasingly smaller, such as personal portable speakers, home living room soundbars, cinema speakers, WIFI and Bluetooth speakers, and desktop computer speakers. This development is moving from quantity to quality. In recent years, with the rise of wireless transmission functions such as Bluetooth and WIFI, streaming music has flourished, making it more convenient for consumers to enjoy music and watch movies as daily entertainment.
[0006] Therefore, miniaturized audio systems have become the mainstream products in the market, but the sound quality of the speakers is limited after miniaturization, so it is necessary to optimize and improve them through structural innovations other than materials.
[0007] In summary, it is indeed necessary to design an audio dynamic extension diaphragm that can improve the sound quality of small and medium-sized speaker units by addressing issues such as insufficient frequency domain loudness and dynamics, limited bandwidth at both ends, and lack of sound detail caused by their small vibrating area.
[0008] In view of this, the creator has devoted a great deal of research and development energy and spirit to continuously break through and innovate in this field, hoping to use novel technical means to solve the shortcomings of existing technologies, in order to bring better products to society and promote the development of the industry. Utility Model Content
[0009] In view of the above, the main purpose of this utility model is to provide an audio dynamic extension diaphragm that connects the diaphragm to the speaker unit diaphragm to form a dual-diaphragm coupled vibration structure, so as to extend the audio frequency domain, make the sound field wider, and improve the realism of the presence.
[0010] To achieve the above objectives, this utility model provides an audio dynamic extension diaphragm, comprising a speaker unit diaphragm and a diaphragm, wherein the speaker unit diaphragm is disposed on a speaker unit; the diaphragm is selected from an elastic and deformable material, the central region of the diaphragm has a perforation, and the outer periphery of the diaphragm is fixedly connected to the speaker unit diaphragm, so that the diaphragm is suspended in a floating configuration corresponding to the speaker unit diaphragm.
[0011] By adding a diaphragm to the speaker unit diaphragm, a dual-diaphragm coupled vibration structure is formed. This diaphragm is directly driven by the speaker unit diaphragm and vibrates simultaneously with the speaker unit diaphragm to produce sound. After adding this diaphragm, the high and low frequency ends of the frequency domain are extended and the frequency domain is wider. Because the speaker unit diaphragm and the diaphragm work together to process the audio signal, the sound performance is more obvious. In terms of listening performance, the sound field of the music is wider and the three-dimensional spatial presence is more realistic.
[0012] The outer periphery of the diaphragm is fixed to the diaphragm of the speaker unit by any of the following methods: gluing, hot pressing, or locking with assembly components.
[0013] The diaphragm is selected from any one of the following: a fabric mixture, a paper mixture, plastic, or metal.
[0014] The diaphragm has a wavy surface with irregular bumps.
[0015] The surface of the diaphragm is planar.
[0016] The diaphragm has a coating on its surface.
[0017] The diaphragm surface is coated with damping adhesive.
[0018] Based on the aforementioned advantages, and in order to further understand this utility model, the preferred embodiments are provided below. With reference to the drawings and reference numbers, the composition of this utility model and the effects it achieves are described in detail below. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present utility model;
[0020] Figure 2 This is a perspective view of the diaphragm of this utility model;
[0021] Figure 3 This is an example diagram illustrating the configuration and use of the diaphragm of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the present invention; and
[0023] Figure 5 This diagram illustrates an example of the use of this invention where the diaphragm and the speaker unit diaphragm vibrate simultaneously to produce sound.
[0024] Explanation of reference numerals in the attached diagram: 1-Speaker; 10-Speaker unit; 11-Speaker unit diaphragm; 12-Magnetic column; 13-Magnet; 14-Voice coil; 15-Magnetic plate; 16-Spider; 17-Side frame; 18-Dust cap; 19-Suspension edge; 20-Diaphragm; 21-Perforation; 22-Wave-shaped concave-convex part. Detailed Implementation
[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Furthermore, this utility model can also be implemented or applied through other different specific embodiments, with various modifications and changes made without departing from the spirit of this utility model.
[0026] Please see Figures 1 to 5 , Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the diaphragm of this utility model; Figure 3 This is an example diagram illustrating the configuration and use of the diaphragm of this utility model; Figure 4 This is a schematic diagram of the structure of the present invention; and Figure 5 This diagram illustrates an example of the simultaneous vibration of the diaphragm of this invention and the diaphragm of the speaker unit to produce sound.
[0027] like Figures 1 to 5 As shown, this utility model provides an audio dynamic expansion diaphragm, including a speaker unit diaphragm 11 and a diaphragm 20, which will be described in detail below.
[0028] The diaphragm 11 of the speaker unit is disposed in a speaker unit 10.
[0029] The diaphragm 20 is selected from an elastic and deformable material. The central region of the diaphragm 20 has a perforation 21. The outer periphery of the diaphragm 20 is fixedly connected to the diaphragm 11 of the speaker unit, so that the diaphragm 20 is suspended in a floating configuration relative to the diaphragm 11 of the speaker unit.
[0030] The speaker unit 10 can be configured in different sizes according to actual application requirements, and the number can be set in the speaker 1 according to actual application requirements.
[0031] In addition to the basic component of the speaker unit diaphragm 11, the speaker unit 10 also includes a magnetic post 12, a magnet 13, a voice coil 14, a magnetic plate 15, a spider 16, a frame 17, a dust cap 18, and a suspension edge 19. Since the above-mentioned basic components of the speaker unit 10 are all existing technologies, they will not be described in detail here.
[0032] In one embodiment of the present invention, the outer periphery of the diaphragm 20 is fixed to the diaphragm 11 of the speaker unit by any one of gluing, hot pressing, or locking with assembly components.
[0033] In one embodiment of the present invention, the diaphragm 20 is selected from any one of a fabric mixture, a paper mixture, plastic, or metal.
[0034] In one embodiment of the present invention, the surface of the diaphragm 20 has a wavy textured portion 22.
[0035] In one embodiment of the present invention, the surface of the diaphragm 20 is planar.
[0036] In one embodiment of the present invention, the surface of the diaphragm 20 has a coating.
[0037] In one embodiment of the present invention, the surface of the diaphragm 20 is coated with damping adhesive.
[0038] To further explain, this utility model adds a diaphragm 20 of a predetermined area to the diaphragm 11 of a conventional speaker unit. The diaphragm 20 can improve the sound quality and timbre by means of material, area, surface shape and surface coating with damping glue or other coatings.
[0039] By applying this invention, a diaphragm 20 can be added to any existing speaker unit 10 to improve sound performance.
[0040] The diaphragm 20 of this invention can be made of any material, for example, it can be molded into a material with a certain rigidity, and any of these can be used as the basic material for this invention.
[0041] The above describes the various components and their composition of this utility model. The features and effects of this utility model will then be described below:
[0042] This invention features a dual-diaphragm coupled vibration structure by additionally providing a diaphragm 20 to the speaker unit diaphragm 11. The diaphragm 20 is directly driven by the speaker unit diaphragm 11 and coupled with the speaker unit diaphragm 11 to vibrate and produce sound. After the diaphragm 20 is provided, the high and low frequency ends of the frequency domain are extended and the frequency domain is wider. Since the speaker unit diaphragm 11 and the diaphragm 20 work together to superimpose and process the audio signal, the sound performance is more obvious. In terms of listening performance, the sound field of the music is wider and the three-dimensional spatial presence is more realistic.
[0043] This utility model has at least the following advantages:
[0044] 1. Compared with a speaker unit of the same size, this utility model has a larger vibration area because the dual diaphragms push air simultaneously, which can push more air volume, improve efficiency and obtain greater loudness.
[0045] To further explain, when the speaker unit diaphragm 11 is driven by the voice coil 14, it vibrates. The vibration wave is transmitted to the diaphragm 20 through the fixed point on the outer periphery of the diaphragm 20, causing it to vibrate synchronously. The speaker unit diaphragm 11 and the diaphragm 20 are coupled to form a composite vibration structure, which pushes more air, forms a larger vibration energy field, and improves the energy transfer efficiency.
[0046] 2. An audio signal is processed by two diaphragms working together, which increases the signal strength and improves sound clarity.
[0047] 3. The perforation 21 in the central area of the diaphragm 20 is not connected to the voice coil 14. Vibration suppression is only generated at the point of contact with the speaker unit diaphragm 11. The vibration extension is good, the high and low ends of the audio are extended, and the usable frequency range is wider.
[0048] 4. Actual listening effect: The sound field generated by this utility model is wider and deeper than that generated by traditional speaker units, and the sense of presence is significantly improved. This is what audiophiles seek: the sense of sound detachment from the speaker enclosure. Simply put, the sound does not feel like it is coming from the speaker itself, but rather a feeling that naturally exists in the space. The dual diaphragms process the same signal at the same time, so the sound density is improved, the signal is depicted more deeply, the details are more apparent, and the realism of instruments and vocals is higher.
[0049] The above embodiments are merely illustrative examples for ease of explanation. The scope of protection claimed by this utility model should be determined by the claims, and not limited to the above embodiments.
Claims
1. An audio dynamic expansion diaphragm, characterized by, include: A diaphragm for a speaker unit is located in a speaker unit; as well as A diaphragm, selected from an elastic, deformable material, has a perforation in its central region and its outer periphery is fixedly connected to the diaphragm of the speaker unit, so that the diaphragm is suspended relative to the diaphragm of the speaker unit.
2. The audio dynamic expansion diaphragm of claim 1, wherein, The outer periphery of the diaphragm is fixed to the diaphragm of the speaker unit by any of the following methods: gluing, hot pressing, or locking with assembly components.
3. The audio dynamic-expansion diaphragm of claim 1, wherein, The diaphragm is selected from any of the following: fabric blend, paper blend, plastic, or metal.
4. The audio dynamic-expansion diaphragm of claim 1, wherein, The diaphragm has a wavy, uneven surface.
5. The audio dynamic-expansion diaphragm of claim 1, wherein, The surface of the diaphragm is planar.
6. The audio dynamic-expansion diaphragm of claim 1, wherein, The diaphragm has a coating on its surface.
7. The audio dynamic-expansion diaphragm of claim 1, wherein, The diaphragm surface is coated with damping adhesive.