Novel composite loudspeaker diaphragm
By designing the basin structure and dustproof cover in the speaker diaphragm, the sound quality damage caused by the lack of dustproof devices of the speaker diaphragm is solved, and the diaphragm vibration frequency and sound quality are achieved.
Patent Information
- Application Number
- CN202421646243.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing speaker diaphragm lacks dustproof devices, resulting in dust and impurities accumulated on the surface of the speaker, reducing the vibration frequency and impairing the sound quality.
A new composite speaker diaphragm is designed, adopting a basin structure, with grooves and multi-layer metal layers inside, fixed by adhesive layer and foamed substrate layer, combined with a dust shield to prevent dust and impurities from entering.
It effectively prevents the accumulation of dust and impurities, maintains the vibration frequency of the diaphragm to stabilize, and improves the sound quality clarity and accuracy of the speakers.
Smart Images
Figure CN222954107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loudspeakers, in particular to a novel composite loudspeaker diaphragm. Background Art
[0002] The background technology of the composite loudspeaker diaphragm process is based on the continuous pursuit of improving loudspeaker performance. Traditional diaphragms have certain limitations, such as unclear sound quality and narrow frequency response range. In order to improve these problems, the composite diaphragm process came into being. It combines the advantages of multiple materials and aims to improve the rigidity, damping characteristics and acoustic performance of the diaphragm through careful design and manufacturing. For example, different materials are stacked or fused to achieve better sound propagation and response. This process enables the speaker to significantly improve the ductility of the treble, the accuracy of the midrange and the diving depth of the bass, meeting people's demand for high-quality audio. It is widely used in audio equipment such as speakers and headphones, and has promoted the development of the audio industry. In the prior art, most loudspeaker diaphragms lack dustproof devices. Because the loudspeaker is exposed to the air for a long time, various dust and impurities accumulate on the surface of the loudspeaker over time, causing the vibration frequency of the loudspeaker diaphragm to decrease and the sound quality of the loudspeaker to be damaged. Improvement is needed. For this reason, we propose a new type of composite loudspeaker diaphragm. Utility Model Content
[0003] 1. Technical issues to be solved
[0004] In view of the deficiencies in the prior art, the utility model provides a novel composite loudspeaker diaphragm to solve the above-mentioned problems.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel composite loudspeaker diaphragm, comprising a basin frame, wherein a groove one is provided inside the basin frame, a first metal layer and a second metal layer are provided inside the groove one, a first adhesive layer, a foamed substrate layer and a second adhesive layer are movably fixed between the first metal layer and the second metal layer, and a dust cover is fixed on the upper surface of the basin frame.
[0007] Preferably, the interior of the dust cover is hollow, the shape of the dust cover is circular, the thickness of the dust cover is very thin, the material of the dust cover is cardboard material, the interior of the dust cover is provided with a groove 2, the shape of the groove 2 is circular, the lower surface of the groove 2 does not contact the upper surface of the second metal layer, and the shape edges of the dust cover are all rounded.
[0008] Preferably, the basin frame is cylindrical in shape, a groove is provided on the upper portion of the basin frame, a thread is provided on the inner surface of the lower portion of the basin frame, and the upper surface of the basin frame is rounded around.
[0009] Preferably, the first metal layer and the second metal layer are fixed to the upper inner surface of the basin frame, and the first metal layer and the second metal layer are fixed to the edge of the groove one.
[0010] Preferably, the second adhesive layer and the first adhesive layer are respectively provided on the upper and lower surfaces of the inner part of the groove, the second adhesive layer and the first adhesive layer are circular in shape, the upper and lower surfaces of the first adhesive layer are not in contact with the foamed substrate layer and the first metal layer, and the upper and lower surfaces of the second adhesive layer are not in contact with the foamed substrate layer and the second metal layer.
[0011] Preferably, a foam substrate layer is provided between the second adhesive layer and the first adhesive layer, the foam substrate layer is circular in shape, and the upper and lower surfaces of the foam substrate layer are not in contact with the first adhesive layer and the second adhesive layer.
[0012] Preferably, the filler of the foamed substrate layer is calcium carbonate, silicon powder, aluminum oxide or titanium dioxide.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a new composite loudspeaker diaphragm, which has the following beneficial effects:
[0015] 1. The new composite speaker diaphragm effectively prevents the accumulation of dust and impurities caused by long-term exposure of the speaker to the air by fixing a dust cover on the upper surface. The design of the dust cover not only protects the diaphragm, but also ensures the stability of the vibration frequency of the speaker diaphragm, thereby maintaining the clarity and accuracy of the speaker sound quality.
[0016] 2. The new composite speaker diaphragm adopts a composite diaphragm design, combines the first metal layer, the foam substrate layer and the second metal layer, and is fixed by the first adhesive layer and the second adhesive layer, so that the diaphragm has significantly improved rigidity, damping characteristics and acoustic performance. This design not only improves the ductility of the treble and the accuracy of the midrange, but also enhances the diving depth of the bass, meeting the user's demand for high-quality audio.
[0017] 3. The new composite speaker diaphragm fully considers the convenience of installation and the stability of the diaphragm through the design of the basin frame. The basin frame is cylindrical in shape, with a groove on the upper part for fixing the diaphragm, and a thread on the lower inner surface for easy installation. At the same time, the edges of the basin frame and the dust cover are rounded, which not only ensures safety but also increases the aesthetics. The selection of fillers in the foam substrate layer (such as calcium carbonate, silica powder, alumina or titanium dioxide) ensures that the diaphragm has good acoustic properties and stability. These fillers are not only light and strong, but also have good sound insulation and sound absorption properties, further improving the sound quality of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional schematic diagram of the utility model;
[0019] Figure 2 It is a schematic diagram of the structure of the utility model;
[0020] Figure 3 It is a schematic diagram of the front view of the utility model;
[0021] Figure 4 It is a schematic diagram of a top view of the utility model.
[0022] In the figure: 1, basin frame; 2, thread; 3, first metal layer; 4, first adhesive layer; 5, foam substrate layer; 6, second adhesive layer; 7, second metal layer; 8, dust cover; 9, groove one; 10, groove two. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-4 A novel composite loudspeaker diaphragm comprises a basin frame 1, a groove 9 is arranged inside the basin frame 1, a first metal layer 3 and a second metal layer 7 are arranged inside the groove 9, a first adhesive layer 4, a foaming substrate layer 5 and a second adhesive layer 6 are movably fixed between the first metal layer 3 and the second metal layer 7, and a dust cover 8 is fixed on the upper surface of the basin frame 1.
[0025] Furthermore, the interior of the dust cover 8 is hollow, the shape of the dust cover 8 is circular, the thickness of the dust cover 8 is very thin, the material of the dust cover 8 is cardboard material, the interior of the dust cover 8 is provided with a groove 10, the shape of the groove 10 is circular, the lower surface of the groove 10 does not contact the upper surface of the second metal layer 7, and the shape edges of the dust cover 8 are all rounded.
[0026] Furthermore, the shape of the basin frame 1 is cylindrical, a groove 9 is provided on the upper part of the basin frame 1, a thread 2 is provided on the inner surface of the lower part of the basin frame 1, and the upper surface of the basin frame 1 is rounded around.
[0027] Furthermore, the first metal layer 3 and the second metal layer 7 are fixed on the upper inner surface of the basin frame 1, and the first metal layer 3 and the second metal layer 7 are fixed on the edge of the groove 9.
[0028] Furthermore, the inner upper and lower surfaces of the groove 9 are respectively provided with a second adhesive layer 6 and a first adhesive layer 4, the second adhesive layer 6 and the first adhesive layer 4 are circular in shape, the upper and lower surfaces of the first adhesive layer 4 are not in contact with the foamed substrate layer 5 and the first metal layer 3, and the upper and lower surfaces of the second adhesive layer 6 are not in contact with the foamed substrate layer 5 and the second metal layer 7.
[0029] Furthermore, a foam substrate layer 5 is provided between the first adhesive layer 4 and the second adhesive layer 6 . The foam substrate layer 5 is circular in shape, and the upper and lower surfaces of the foam substrate layer 5 are not in contact with the first adhesive layer 4 and the second adhesive layer 6 .
[0030] Furthermore, the filler of the foamed substrate layer 5 is calcium carbonate, silicon powder, aluminum oxide or titanium dioxide.
[0031] Working principle: The basin frame 1 is the basic structure of the speaker diaphragm, and its cylindrical design facilitates the installation and fixation of the speaker diaphragm. A groove 9 is provided on the upper part of the basin frame 1 for accommodating and fixing the other parts of the composite diaphragm. The first metal layer 3 and the second metal layer 7 are respectively fixed to the edges of the groove 9 on the inner surface of the upper part of the basin frame 1. These two metal layers provide the rigidity and damping characteristics required by the diaphragm through careful design and material selection. A foam substrate layer 5 is provided between the first metal layer 3 and the second metal layer 7. The foam substrate layer 5 is movably fixed to the first metal layer 3 and the second metal layer 7 through the first adhesive layer 4 and the second adhesive layer 6 respectively. The filler of the foam substrate layer 5 is such as calcium carbonate, silicon powder, aluminum oxide or titanium dioxide. The selection of these fillers helps to improve the acoustic performance of the diaphragm. A dust cover 8 is fixed to the upper surface of the basin frame 1. The dust cover 8 is round in shape, hollow inside, and made of hard paper material with a very thin thickness. The dust cover 8 is provided with a second groove 10, which is also circular in shape, but the lower surface of the second groove 10 does not contact the upper surface of the second metal layer 7, and a certain gap is maintained. The edges of the dust cover 8 are all rounded, which is both beautiful and safe.
[0032] When the speaker is working, the audio signal drives the composite diaphragm to vibrate. The audio signal first acts on the basin frame 1, and then is transmitted to the foam substrate layer 5 through the first metal layer 3 and the second metal layer 7. Due to the special filler and structure of the foam substrate layer 5, the audio signal can be effectively converted and diffused to produce high-quality audio output. The presence of the dust cover 8 effectively prevents external dust and impurities from entering the diaphragm area, thereby ensuring the stability of the diaphragm and the clarity of the sound quality. At the same time, the rounded corner design and light material of the dust cover 8 also ensure the smooth propagation of the audio signal. The lower inner surface of the basin frame 1 is provided with a thread 2 to facilitate the installation and fixation of the speaker diaphragm and other parts of the speaker. During installation, the diaphragm can be firmly mounted on the speaker through a threaded connection to ensure the stable transmission of the audio signal.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel composite loudspeaker diaphragm, comprising a basin frame (1), characterized in that: The basin frame (1) is provided with a groove one (9) inside, a first metal layer (3) and a second metal layer (7) are provided inside the groove one (9), a first adhesive layer (4), a foamed substrate layer (5) and a second adhesive layer (6) are movably fixed between the first metal layer (3) and the second metal layer (7), and a dust cover (8) is fixed on the upper surface of the basin frame (1).
2. The novel composite loudspeaker diaphragm according to claim 1, characterized in that: The dust cover (8) is hollow inside and circular in shape. The dust cover (8) is very thin and made of cardboard. A second groove (10) is provided inside the dust cover (8). The second groove (10) is circular in shape. The lower surface of the second groove (10) does not contact the upper surface of the second metal layer (7). The edges of the dust cover (8) are all rounded.
3. The novel composite loudspeaker diaphragm according to claim 1 is characterized in that: The basin frame (1) is cylindrical in shape, a groove (9) is provided on the upper part of the basin frame (1), a thread (2) is provided on the inner surface of the lower part of the basin frame (1), and the upper surface of the basin frame (1) is rounded on all sides.
4. The novel composite loudspeaker diaphragm according to claim 1 is characterized in that: The first metal layer (3) and the second metal layer (7) are fixed on the upper inner surface of the basin frame (1), and the first metal layer (3) and the second metal layer (7) are fixed on the edge of the groove one (9).
5. The novel composite loudspeaker diaphragm according to claim 1 is characterized in that: The upper and lower surfaces of the interior of the groove 1 (9) are respectively provided with a second adhesive layer (6) and a first adhesive layer (4); the second adhesive layer (6) and the first adhesive layer (4) are circular in shape; the upper and lower surfaces of the first adhesive layer (4) are not in contact with the foamed substrate layer (5) and the first metal layer (3); and the upper and lower surfaces of the second adhesive layer (6) are not in contact with the foamed substrate layer (5) and the second metal layer (7).
6. The novel composite loudspeaker diaphragm according to claim 1 is characterized in that: A foaming substrate layer (5) is arranged between the first adhesive layer (4) and the second adhesive layer (6); the foaming substrate layer (5) is circular in shape, and the upper and lower surfaces of the foaming substrate layer (5) are not in contact with the first adhesive layer (4) and the second adhesive layer (6).
7. The novel composite loudspeaker diaphragm according to claim 1 is characterized in that: The filler of the foaming substrate layer (5) is calcium carbonate, silicon micropowder, aluminum oxide or titanium dioxide.