Single-drive dual-spike loudspeaker

Abstract

This application discloses a single-drive dual-spider loudspeaker, including a magnetic circuit system, a frame, a voice coil, and a diaphragm. The diaphragm is connected to the frame, and the voice coil is connected to the diaphragm. It also includes two spiders and two support tubes. The two spiders are located on opposite sides of the voice coil, and the two spiders are respectively connected to both sides of the diaphragm through the two support tubes. The diaphragm is a planar diaphragm. This application can reduce the thickness of the loudspeaker, achieving an ultra-thin design and saving space; it can produce a low resonant frequency with more balanced vibration; the planar diaphragm design, through the support tube design, results in better overall sound quality; furthermore, the design facilitates assembly, helping to increase efficiency and reduce costs.

Description

Technical Field

[0001] This application relates to the field of loudspeaker technology, specifically to a single-drive dual-spike loudspeaker. Background Technology

[0002] With market demand and advancements in electronic technology, various electronic products are developing towards thinner and smaller designs, while simultaneously demanding higher quality. Speakers are essential components in most electronic products with audio output, and therefore, they also need to be thinner, smaller, and offer better sound quality.

[0003] A loudspeaker typically includes a diaphragm, voice coil, spider, and magnetic circuit system. For loudspeakers used in certain special applications (such as car roof and headrest audio systems), the requirements are lightweight, small size, high power, and good sound quality. Traditional loudspeakers with a single spider are generally heavy, large, and require a large installation depth; loudspeakers without a spider, while lightweight and small, have low power. Utility Model Content

[0004] The main technical problem addressed by this application is to provide a single-drive dual-spike loudspeaker.

[0005] This application discloses a single-drive dual-spider loudspeaker, comprising a magnetic circuit system, a frame, a voice coil, and a diaphragm. The diaphragm is connected to the frame, and the voice coil is connected to the diaphragm. The loudspeaker also includes two spiders and two support tubes. The two spiders are located on opposite sides of the voice coil, and the two spiders are respectively connected to the two sides of the diaphragm through the two support tubes. The diaphragm is a planar diaphragm.

[0006] In some alternative embodiments, the diaphragm includes a planar diaphragm body and a pleated ring connecting the diaphragm body to the frame.

[0007] In some alternative embodiments, the length of the diaphragm is greater than its width, and in a top view, the two spiders and the voice coil are arranged in a straight line along the length of the diaphragm.

[0008] In some alternative implementations, the ratio of the length to the width of the diaphragm is not less than 3.

[0009] In some alternative implementations, the fold protrudes outward beyond the diaphragm body.

[0010] In some alternative implementations, in a top view, the outer edge of the wave is circular and connected to the frame, and the wave includes multiple annular wave structures from the center to the edge.

[0011] In some alternative embodiments, the bottom of the basin stand has an opening that exposes the spring.

[0012] In some alternative embodiments, the support tube is a hollow, lightweight cylinder, with its upper end connected to the lower surface of the diaphragm and its lower end connected to the center of the upper surface of the spar.

[0013] In some alternative embodiments, the magnetic power system includes a U-shaped iron connected to the frame and a magnetic assembly disposed within the U-shaped iron, wherein a magnetic gap is formed between the inner sidewall of the U-shaped iron and the outer sidewall of the magnetic assembly to accommodate the voice coil.

[0014] In some alternative implementations, the magnetic assembly includes, from bottom to top, a first magnet, a first washer, a second magnet, and a second washer.

[0015] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0016] Compared to a typical single-coil design, the dual-coil design of this application can significantly reduce the thickness of the speaker. For example, the overall thickness of the speaker can be reduced to less than 10mm, thereby achieving an ultra-thin design and helping to save space. Furthermore, the two coils reduce the amplitude of the diaphragm, resulting in less airflow in front during vibration. This allows for a lower resonant frequency and more balanced vibration. Moreover, the support tube design allows for the use of a planar diaphragm. Compared to irregularly shaped diaphragms, planar diaphragms offer better transient response, lower distortion, richer detail, a wider and more uniform sound field, more accurate timbre, and better overall sound quality. In addition, the design of this application facilitates assembly, which helps to increase efficiency and reduce costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments and the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure of a single-drive dual-spike loudspeaker according to an embodiment of this application;

[0019] Figure 2 This is a top view schematic diagram of a single-drive dual-spike loudspeaker according to an embodiment of this application;

[0020] Figure 3 This is a bottom view of a single-drive dual-spike loudspeaker according to an embodiment of this application. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0022] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0023] The following detailed descriptions will be provided through specific embodiments.

[0024] refer to Figures 1 to 3 One embodiment of this application provides a single-drive dual-spike loudspeaker (hereinafter referred to as loudspeaker).

[0025] like Figures 1 to 3 As shown, the loudspeaker of this application includes a magnetic circuit system, a frame 102, a voice coil 104, and a diaphragm 101. The diaphragm 101 is connected to the frame 102, and the voice coil 104 is connected to the diaphragm 101. It also includes two spiders (i.e., a first spider 103 and a second spider 110) and two support tubes (i.e., a first support tube 111 and a second support tube 112). The two spiders are located on opposite sides of the voice coil 104, and the two spiders are respectively connected to the two sides of the diaphragm 101 through the two support tubes. The diaphragm 101 is a planar diaphragm.

[0026] In some alternative embodiments, the diaphragm 101 includes a planar diaphragm body 1011 and a folded ring 1012 connecting the diaphragm body 1011 to the frame 102. Optionally, the folded ring 1012 protrudes outward beyond the diaphragm body 1011; or, the folded ring 1012 may be recessed inward below the diaphragm body 1011.

[0027] In some alternative embodiments, the length of the diaphragm 101 is greater than its width. In a top view, the two spiders and the voice coil 104 are arranged in a straight line along the length of the diaphragm, with the voice coil 104 in the middle and the first spider 103 and the second spider 110 on the sides, respectively.

[0028] In some alternative implementations, the length-to-width ratio of the diaphragm 101 is not less than 3.

[0029] In some alternative embodiments, in a top view, the outer edge of the wave is circular and connected to the frame 102, and the wave includes multiple annular wave structures from the center to the edge.

[0030] In some alternative embodiments, the bottom of the frame 102 has an opening that exposes the spider. This opening allows air to circulate between the inside and outside of the speaker, which helps improve sound quality.

[0031] In some alternative embodiments, the support tube is a hollow, lightweight cylinder (e.g., a plastic cylinder) with its upper end connected to the lower surface of the diaphragm 101 and its lower end connected to the center of the upper surface of the spider. Here, using a support tube to connect the diaphragm 101 to the spider maintains the diaphragm 101 as a planar diaphragm, thereby improving sound quality and effects, compared to designing an irregularly shaped diaphragm to directly connect to the spider.

[0032] In some alternative embodiments, the magnetic power system includes a U-shaped iron 105 connected to the basket frame and a magnetic assembly placed within the U-shaped iron 105, with a magnetic gap forming between the inner sidewall of the U-shaped iron 105 and the outer sidewall of the magnetic assembly to accommodate the voice coil 104.

[0033] In some alternative embodiments, the magnetic assembly includes, from bottom to top, a first magnet 106, a first washer 107, a second magnet 108, and a second washer 109. This dual-magnet + dual-wafer structure can improve the driving force.

[0034] The technical solution of this application has been described in detail above through specific embodiments. In the above embodiments, the descriptions of each embodiment have their own emphasis, and for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0035] It should be understood that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and protection scope of the technical solutions of the embodiments of this application.

Claims

1. A single drive dual spider loudspeaker comprising a magnetic circuit system, a basket, a voice coil and a diaphragm, the diaphragm being connected to the basket, the voice coil being connected to the diaphragm, characterized in that, Two elastic waves are arranged on opposite sides of the voice coil, and the two elastic waves are connected to the two sides of the diaphragm through two support tubes.

2. The single-drive dual-surge speaker of claim 1, wherein, The diaphragm comprises a planar diaphragm body and a folded ring connecting the diaphragm body to the basket.

3. The single-drive dual-surge speaker of claim 2, wherein, The length of the diaphragm is greater than the width, and in the top view, the two elastic waves and the voice coil are arranged in a straight line in the length direction of the diaphragm.

4. The single-drive dual-surge speaker of claim 3, wherein, The ratio of the length to the width of the diaphragm is not less than 3.

5. The single-drive dual-surge speaker of claim 2, wherein, The folded ring protrudes outward beyond the diaphragm body.

6. The single-drive dual-surge speaker of claim 1, wherein, In the top view, the outer edge of the elastic wave is circular and connected to the basket, and the elastic wave comprises a plurality of annular wave structures from the center to the edge.

7. The single-drive dual-surge speaker of claim 6, wherein, The bottom of the basket has an opening exposing the elastic wave.

8. The single-drive dual-surge speaker of claim 6, wherein, The support tube is a hollow lightweight cylinder, the upper end of which is connected to the lower surface of the diaphragm, and the lower end of which is connected to the center of the upper surface of the elastic wave.

9. The single-drive dual-surge speaker of claim 1, wherein, The magnetic circuit system comprises a U-shaped iron connected to the basket and a magnetic assembly arranged in the U-shaped iron, and a magnetic gap accommodating the voice coil is formed between the inner side wall of the U-shaped iron and the outer side wall of the magnetic assembly.

10. The single-drive dual-surge speaker of claim 9, wherein, The magnetic assembly comprises a first magnet, a first dust shield, a second magnet and a second dust shield in sequence from bottom to top.

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