A full-range diaphragm with a triple-loop dual voice coil

Abstract

A full-range diaphragm with a three-fold loop and dual voice coils includes a diaphragm body and an inner voice coil, an outer voice coil, an inner support frame, and an outer support frame disposed on the inner side of the diaphragm body. The inner support frame, inner voice coil, outer voice coil, and outer support frame are arranged sequentially from the inside to the outside on the inner side of the diaphragm body. The diaphragm body includes an inner loop, a middle loop, and an outer loop arranged sequentially from the inside to the outside, with the cross-sectional dimensions of the inner loop, middle loop, and outer loop increasing sequentially. This invention, by setting a three-fold loop structure from the inside to the outside, and with the height of the three loops gradually increasing from the inside to the outside, combined with the support stiffness of the inner and outer sides of the diaphragm body, enables the three loops to not only achieve precise frequency band coverage when vibrating independently, but also to achieve full-range coordination during vibration. It has strong practicality and significant potential for widespread application.

Description

Technical Field

[0001] This utility model relates to a diaphragm, and more particularly to a full-range diaphragm with three-fold loop double voice coils that can vibrate individually or simultaneously. Background Technology

[0002] A diaphragm is a core component in acoustic equipment, primarily functioning to convert electrical signals into mechanical vibrations (sound production) or sound wave vibrations into electrical signals (sound reception). It is widely used in devices such as loudspeakers, headphones, and microphones. Traditional audio equipment often employs a single voice coil or a complex multi-voice coil system for its diaphragm design; however, these designs have limitations in frequency response and sound quality, especially when processing full-range sound, often failing to achieve ideal sound quality. Utility Model Content

[0003] Therefore, it is necessary to provide a full-range diaphragm with a triple-loop dual voice coil to address the shortcomings of existing technologies.

[0004] A full-range diaphragm with three-folded loops and two voice coils includes a diaphragm body and an inner voice coil, an outer voice coil, an inner support frame, and an outer support frame disposed on the inner side of the diaphragm body. The inner support frame, inner voice coil, outer voice coil, and outer support frame are arranged sequentially from the inside to the outside on the inner side of the diaphragm body. The diaphragm body includes an inner loop, a middle loop, and an outer loop arranged sequentially from the inside to the outside. The cross-sectional dimensions of the inner loop, middle loop, and outer loop increase sequentially.

[0005] Furthermore, the inner folding ring has a through hole in the middle, and the inner support frame is arranged in a ring shape, which is installed on the inner side of the inner folding ring and located outside the through hole.

[0006] Furthermore, an annular first mounting portion is provided between the inner surfaces of the central folded ring and the inner folded ring, and the inner voice coil is mounted on the first mounting portion.

[0007] Furthermore, an annular second mounting portion is provided between the inner surface of the middle folding ring and the outer folding ring, and the outer voice coil is mounted on the second mounting portion.

[0008] Furthermore, the cross-sections of the inner folded ring, the middle folded ring, and the outer folded ring all bulge upwards on the same side of the diaphragm body, forming an arc-shaped arched structure. The height and width of the arc-shaped arched structure of the three folded rings increase in a gradient from the inside to the outside.

[0009] Furthermore, it also includes a control device connected to the inner and outer voice coils, which can control the current of the inner and outer voice coils separately or simultaneously. The control device uses conventional technology to control the voice coil current, such as a conventional Class D amplifier or an H-bridge switching driver.

[0010] Furthermore, the inner folding ring, the middle folding ring, and the outer folding ring are arranged to gradually increase in thickness from the inside to the outside.

[0011] In summary, this invention employs a three-ring structure—an inner ring, a middle ring, and an outer ring—with rigid support on both sides of the diaphragm body. This allows the diaphragm to comprise three independent annular regions, each capable of independent vibration, thus achieving precise control over different frequency sounds. A dual voice coil system is created by equipping each annular region with a voice coil; the voice coils can be driven individually or simultaneously for flexible diaphragm control. Individual driving allows for independent adjustment of different frequency sounds; simultaneous driving enables the diaphragm to cover a wider frequency range, achieving full-frequency response. This control mechanism allows the diaphragm to vibrate precisely according to the needs of different frequency sounds, thereby improving sound quality. It contributes to enhancing the overall sound quality performance of audio equipment, enabling it to deliver excellent sound quality when processing various audio content. This invention is highly practical and has significant potential for widespread application. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a full-range diaphragm with a three-fold ring and two voice coils according to the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the main structure of the diaphragm;

[0014] Figure 3 for Figure 2 A schematic diagram of the bottom surface of the diaphragm body;

[0015] Figure 4 for Figure 2 A cross-sectional schematic diagram of the main body of the diaphragm. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] like Figures 1 to 4 As shown, this utility model provides a full-range diaphragm with a three-fold loop and two voice coils. The full-range diaphragm with a three-fold loop and two voice coils includes a diaphragm body 10 and an inner voice coil 20, an outer voice coil 30, an inner support frame 40, and an outer support frame 50 disposed on the inner side of the diaphragm body 10. The inner support frame 40, the inner voice coil 20, the outer voice coil 30, and the outer support frame 50 are arranged sequentially from the inside to the outside on the inner side of the diaphragm body 10.

[0018] The diaphragm body 10 includes an inner folded ring 11, a middle folded ring 12, and an outer folded ring 13 arranged sequentially from the inside to the outside. The inner folded ring 11, the middle folded ring 12, and the outer folded ring 13 are all arranged in an arc-shaped arch structure facing upwards to the same side. The dimensions of the inner folded ring 11, the middle folded ring 12, and the outer folded ring 13 also increase gradually from the inside to the outside; that is, the height and width of the arc-shaped protrusions of the inner folded ring 11, the middle folded ring 12, and the outer folded ring 13 gradually increase from the inside to the outside. Furthermore, it can be understood that the inner folded ring 11, the middle folded ring 12, and the outer folded ring 13 can also be arranged in a progressively thicker manner. This design can improve the compliant support of the diaphragm body, ensuring smooth support and guidance for both high-frequency micro-motion and low-frequency large-stroke motion, greatly reducing nonlinear distortion and energy loss caused by its own deformation.

[0019] The inner folding ring 11 has a through hole 111 in its center. The inner support frame 40 is annularly arranged and is mounted on the inner side of the inner folding ring 11 and located outside the through hole 111. A first annular mounting portion 112 is provided between the middle folding ring 12 and the inner folding ring 11, and a second annular mounting portion 113 is provided between the middle folding ring 12 and the outer folding ring 13. The inner surfaces of the first mounting portion 112 and the second mounting portion 113 are horizontally arranged. The inner voice coil 20 is mounted on the first mounting portion 112, and the outer voice coil 30 is mounted on the second mounting portion 113. The outer support frame 50 is also annularly arranged and is located on the outer periphery of the outer folding ring 13.

[0020] In this embodiment, the inner ring 13 is responsible for precise high-frequency response (small amplitude, high frequency), the middle ring 12 connects the mid-frequency transition, and the outer ring 13 carries the low-frequency large amplitude. During operation, the inner voice coil 20 drives the inner ring 11 and part of the middle ring 12 to achieve independent high-frequency vibration, while the outer voice coil 30 drives the outer ring 13 and the remaining middle ring 12 to cover independent mid-low frequency vibration. Furthermore, the inner voice coil 20 and the outer voice coil 30 can also collaboratively control the three rings to achieve a wider, flatter, and lower-distortion full-frequency sound reproduction.

[0021] In summary, this invention employs a three-fold ring structure—an inner fold ring 11, a middle fold ring 12, and an outer fold ring 13—with the diaphragm body 10 rigidly supported by a support frame on both its inner and outer sides. This design provides excellent longitudinal compliance (facilitating vertical piston movement) while maintaining radial rigidity (resisting lateral deformation). By setting a dual voice coil structure, corresponding voice coils are provided to the annular areas of the three fold rings, forming a dual voice coil system. The voice coils can be driven individually or simultaneously to achieve flexible control of the diaphragm. When driven individually, adjustments can be made independently for different frequency sounds; when driven simultaneously, the diaphragm can cover a wider frequency range, achieving full-frequency response. This configuration allows the diaphragm to vibrate precisely according to the needs of different frequency sounds, thereby improving sound quality. It helps improve the overall sound quality performance of audio equipment, enabling it to present excellent sound quality when processing various audio content. This invention is highly practical and has significant potential for widespread application.

[0022] The embodiments described above are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A full-range diaphragm with a triple-loop dual-voice coil, characterized in that: The device includes a diaphragm body and an inner voice coil, an outer voice coil, an inner support frame, and an outer support frame disposed on the inner surface of the diaphragm body. The inner support frame, inner voice coil, outer voice coil, and outer support frame are arranged sequentially from the inside to the outside on the inner surface of the diaphragm body. The diaphragm body includes an inner folded ring, a middle folded ring, and an outer folded ring arranged sequentially from the inside to the outside. The cross-sectional dimensions of the inner folded ring, the middle folded ring, and the outer folded ring increase sequentially.

2. The full-range diaphragm with three-fold loop dual voice coils as described in claim 1, characterized in that: The inner folding ring has a through hole in the middle, and the inner support frame is arranged in a ring shape, which is installed on the inner side of the inner folding ring and located outside the through hole.

3. The full-range diaphragm with three-fold loop dual voice coils as described in claim 1, characterized in that: An annular first mounting portion is provided between the inner surfaces of the central folded ring and the inner folded ring, and the inner voice coil is mounted on the first mounting portion.

4. The full-range diaphragm with three-fold loop dual voice coils as described in claim 1, characterized in that: A second annular mounting portion is provided between the inner surface of the middle folding ring and the outer folding ring, and the outer voice coil is mounted on the second mounting portion.

5. The full-range diaphragm with a triple-ring dual voice coil of claim 1, wherein: The cross-sections of the inner folded ring, the middle folded ring, and the outer folded ring bulge upwards on the same side, forming an arc-shaped arched structure. The height and width of the arc-shaped arched structure of the three folded rings increase in a gradient from the inside to the outside.

6. The full-range diaphragm with three-fold loop dual voice coils as described in claim 1, characterized in that: It also includes a control device, which is connected to the inner voice coil and the outer voice coil and can control the current of the inner voice coil and the outer voice coil separately or simultaneously.

7. The full-range diaphragm with a triple-ring dual voice coil of claim 1, wherein: The inner folding ring, the middle folding ring, and the outer folding ring are arranged in a progressively thicker manner from the inside to the outside.

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