A coaxial miniature loudspeaker

Abstract

This utility model relates to the field of loudspeaker technology and discloses a coaxial miniature loudspeaker, including a frame, a magnet at the top of the frame, a support assembly in the middle of the frame, and a vibration assembly inside the frame. The support assembly includes a basket fixedly connected to the bottom of the frame, a cover fixedly connected to the middle of the basket, and a bass diaphragm disposed between the frame and the basket. The vibration assembly includes a coil fixedly connected to the top of the frame. In this utility model, by installing the tweeter inside the U-cup at the bottom of the bass diaphragm, the bass diaphragm and tweeter are mounted on the same axis and their diaphragm surfaces overlap, making the physical positioning closer to the point sound source. This avoids the acoustic structural damage caused by separate arrangement of multiple loudspeakers and provides a more ideal sound field positioning effect.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a coaxial miniature loudspeaker. Background Technology

[0002] A coaxial loudspeaker is a loudspeaker that integrates a tweeter unit and a woofer unit, with the tweeter and woofer units arranged coaxially. Common loudspeakers typically consist of separate tweeters and mid-bass drivers, producing mid-low frequency sound through the low-frequency vibration of the diaphragm. In some more complex combined loudspeakers, although attempts are made to integrate high and low frequency functions, the components remain relatively independent, and a crossover is used to distribute audio signals of different frequency bands to the corresponding speaker units.

[0003] Existing conventional loudspeakers and some combined loudspeakers suffer from acoustic structural design flaws. Because the tweeter and mid-bass driver are spatially separated, sound propagation paths differ, preventing different frequency bands from simultaneously reaching the listener's ear from the same axis and point source. This hinders ideal sound field localization. In complex audio scenarios, the sense of sound layering and location can become confused, failing to accurately reproduce spatial information within the audio content and negatively impacting the user's listening experience. Therefore, a coaxial miniature loudspeaker is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a coaxial miniature loudspeaker, which aims to improve the problem of sound propagation path separation between high-frequency and mid-bass speakers in the prior art, which affects the user's listening experience.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coaxial miniature loudspeaker includes a frame, a magnet disposed at the top of the frame, a support assembly mounted in the middle of the frame, and a vibration assembly mounted inside the frame.

[0007] The support assembly includes a basin stand, which is fixedly connected to the bottom of the frame, and a protective cover is fixedly connected to the middle of the basin stand.

[0008] As a further description of the above technical solution:

[0009] A dust cover is provided in the middle of the basin frame, and a bass diaphragm is provided between the frame and the basin frame.

[0010] As a further description of the above technical solution:

[0011] The vibration assembly includes a coil, which is fixedly connected to the top of the frame. A bass diaphragm is fixedly connected to the middle of the frame. A U-cup is fixedly connected to the bottom of the bass diaphragm. A tweeter is installed inside the U-cup.

[0012] As a further description of the above technical solution:

[0013] The top of the bass diaphragm is fixedly connected to damping cotton, which is placed in the middle of the frame;

[0014] As a further description of the above technical solution:

[0015] A washer is fixedly connected to the bottom of the magnet, and a permanent magnet is fixedly connected to the bottom of the washer;

[0016] As a further description of the above technical solution:

[0017] A dust cover is fixedly connected to the bottom of the tweeter, and the dust cover is fixedly connected to the outside of the U-cup;

[0018] As a further description of the above technical solution:

[0019] The washer and the permanent magnet are installed in the middle of the frame;

[0020] As a further description of the above technical solution:

[0021] The bass diaphragm is made of paper, plastic, or metal.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by installing the tweeter in the U-cup at the bottom of the bass diaphragm, the bass diaphragm and the tweeter are mounted on the same axis and the diaphragm surfaces overlap, so that the physical positioning is close to the point sound source, avoiding the acoustic structure damage caused by the separate arrangement of multiple speakers, and providing a more ideal sound field positioning effect.

[0024] 2. In this utility model, the bass diaphragm and the tweeter reproduce signals of different frequency bands and synthesize them to achieve wider frequency band music reproduction. At the same time, the phase fidelity of the sound propagation across the entire frequency range is extremely high, making the sense of sound position and movement clear and accurate. In terms of sound, the bass is realistic, the midrange is full and sweet, and the treble is delicate and ethereal, which can bring a high-fidelity sound reproduction effect and provide users with a better listening experience. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a coaxial miniature loudspeaker proposed in this utility model;

[0026] Figure 2This is a schematic diagram of the frame structure of a coaxial miniature loudspeaker proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the bass diaphragm of a coaxial miniature loudspeaker proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a dust cover for a coaxial miniature loudspeaker proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Coil; 3. Magnet; 4. Bass basket; 5. Permanent magnet; 6. Bass diaphragm; 7. Damping cotton; 8. U-cup; 9. Dust cover; 10. Washer; 11. Protective cover; 12. Tweeter. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 4 The present invention provides an embodiment of a coaxial miniature loudspeaker, comprising a frame 1, a magnet 3 disposed on the top of the frame 1, a support assembly installed in the middle of the frame 1, and a vibration assembly installed inside the frame 1.

[0033] The support assembly includes a speaker basket 4, which is fixedly connected to the bottom of the frame 1. The basket 4 provides a stable support structure for the entire speaker, ensuring that all components maintain a relatively fixed position and preventing displacement or deformation of components due to vibration or other factors during operation. A cover 11 is fixedly connected to the middle of the basket 4, protecting the internal components from damage caused by external objects or dust. A bass diaphragm 6 is positioned between the frame 1 and the basket 4. A washer 10 is fixedly connected to the bottom of the magnet 3, and a permanent magnet 5 is fixedly connected to the bottom of the washer 10. The washer 10 and permanent magnet 5 are installed in the middle of the frame 1. The permanent magnet 5 generates a stable magnetic field, providing the necessary magnetic field environment for the speaker's operation. The washer 10 is fixed between the magnet 3 and the permanent magnet 5, connecting them together to form a unified whole, ensuring stable magnetic field transmission.

[0034] Reference Figure 1 - Figure 4The vibration component includes a coil 2, which is fixedly connected to the top of the frame 1. The magnetic field generated by the permanent magnet 5 acts more concentratedly on the coil 2, improving the utilization efficiency of the magnetic field and enhancing the interaction between the coil 2 and the magnetic field. This makes the speaker vibration more sensitive and the sound reproduction more accurate. A bass diaphragm 6 is fixedly connected to the middle of the frame 1, and a U-cup 8 is fixedly connected to the bottom of the bass diaphragm 6. A tweeter 12 is installed inside the U-cup 8. The bass diaphragm 6 and the tweeter 12 are mounted on the same axis, responsible for reproducing high and mid-low frequencies respectively. These two speakers overlap on the diaphragm surface, making their physical positioning close to a point source. A damping cotton 7 is fixedly connected to the top of the bass diaphragm 6. The damping cotton 7 is placed in the middle of the frame 1. When the speaker is working, the bass diaphragm 6 will produce a large amplitude vibration. The damping cotton 7 connected to the top of the bass diaphragm 6 can effectively absorb and buffer the energy generated by the vibration of the bass diaphragm 6, reduce the transmission of vibration to the frame 1 and other components, avoid unnecessary noise and distortion caused by vibration, make the sound purer, and improve the overall audio quality of the speaker. A dust cover 9 is fixedly connected to the bottom of the tweeter 12. The dust cover 9 is fixedly connected to the outside of the U-cup 8. The dust cover 9 is set at the bottom of the tweeter 12 and the outside of the U-cup 8, which can effectively prevent dust and other small particles from entering the speaker. The woofer diaphragm 6 is made of paper, plastic or metal.

[0035] Working Principle: The bass diaphragm 6 and tweeter 12 are mounted on the same axis, responsible for reproducing high and mid-low frequencies respectively. The two speakers overlap on their diaphragm surfaces, making their physical positioning close to a point source. The coaxial design ensures that all frequency signals from 20Hz to 20kHz propagate to the listener's ear along the same axis, achieving common-point sound emission and synchronous propagation. This design provides a more ideal sound field positioning effect; the bass diaphragm 6 and tweeter 12 reproduce high and mid-low frequency ranges respectively, and then these signals are combined to achieve a wider frequency band music reproduction. This design avoids the acoustic structural damage caused by the separate arrangement of multiple speakers, resulting in a more ideal sound field positioning. The phase fidelity of sound propagation across the entire frequency range is extremely high, making the sense of sound position and movement more vivid and accurate, presenting a realistic bass, full and sweet midrange, and delicate and ethereal treble. The magnet 3 at the top of the frame 1, with the washer 10 and permanent magnet 5 fixedly connected to its bottom, works together to generate a stable magnetic field, providing the necessary magnetic field environment for the vibration of the coil 2.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coaxial miniature loudspeaker, comprising a frame (1), characterized in that: A magnet (3) is provided at the top of the frame (1), a support assembly is installed in the middle of the frame (1), and a vibration assembly is installed inside the frame (1). The support assembly includes a basin frame (4), which is fixedly connected to the bottom of the frame (1), and a cover (11) is fixedly connected to the middle of the basin frame (4); a bass diaphragm (6) is provided between the frame (1) and the basin frame (4). The vibration assembly includes a coil (2), which is fixedly connected to the top of the frame (1). A bass diaphragm (6) is fixedly connected to the middle of the frame (1). A U-cup (8) is fixedly connected to the bottom of the bass diaphragm (6). A tweeter (12) is provided inside the U-cup (8). The bass diaphragm (6) and the tweeter (12) are mounted on the same axis.

2. The coaxial miniature loudspeaker according to claim 1, characterized in that: The top of the bass diaphragm (6) is fixedly connected to a damping cotton (7), which is placed in the middle of the frame (1).

3. A coaxial miniature loudspeaker according to claim 1, characterized in that: The bottom of the magnet (3) is fixedly connected to a washer (10), and the bottom of the washer (10) is fixedly connected to a permanent magnet (5).

4. A coaxial miniature loudspeaker according to claim 1, characterized in that: A dust cover (9) is fixedly connected to the bottom of the tweeter (12), and the dust cover (9) is fixedly connected to the outside of the U cup (8).

5. A coaxial miniature loudspeaker according to claim 3, characterized in that: The washer (10) and the permanent magnet (5) are installed in the middle of the frame (1).

6. A coaxial miniature loudspeaker according to claim 1, characterized in that: The bass diaphragm (6) is made of paper, plastic or metal.

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