Ultrathin external damper-driven horn combining moving coil and moving iron

Abstract

The invention discloses a moving coil and moving iron combined ultrathin external damper-driven loudspeaker, which comprises a basin stand, an elastic sheet, a vibration assembly and a magnetic assembly, and is characterized in that the vibration assembly comprises a voice coil, cone paper and a damper, the cone paper is connected with the voice coil but not connected with the basin stand, the damper is connected between the cone paper and the basin stand, and the elastic sheet is arranged between the cone paper and the basin stand. The damper is exposed out of the basin stand; the magnetic assembly is connected to the basin frame through the elastic sheet and can vibrate relative to the basin frame. The cone frame and the cone paper are connected through the external damper, so that an ultra-thin structure can be realized; and the magnetic assembly and the voice coil vibrate together, so that the driving force can be greatly improved.

Description

Technical Field

[0001] The present application relates to the field of acoustic technology, and in particular to an ultra-thin external elastic wave driven speaker combining a dynamic coil and a moving iron. Background Art

[0002] With the market demand and the progress of electronic technology, all kinds of electronic products are developing in the direction of thinner and smaller, and at the same time, the requirements for their quality are getting higher and higher. Speakers are essential accessories for most electronic products with audio output, so they also need to be thinner, smaller and have better sound quality. In addition, as the speakers become thinner, their driving force will be reduced accordingly. Summary of the invention

[0003] The main technical problem solved by the present application is to provide an ultra-thin external elastic wave drive speaker combining a dynamic coil and a moving iron.

[0004] The present application proposes an ultra-thin external spring-driven speaker combining a dynamic coil and a moving iron, comprising a basin frame, a spring sheet, a vibration component and a magnetic component, wherein the vibration component comprises a voice coil, a drum paper and a spring sheet, wherein the drum paper is connected to the voice coil but not to the basin frame, and the spring sheet is connected between the drum paper and the basin frame, and the spring sheet is exposed from the basin frame; the magnetic component is connected to the basin frame through the spring sheet and can vibrate relative to the basin frame.

[0005] In some optional embodiments, the outer edge of the basin frame has a vertically extending side wall, the outer edge of the elastic wave is connected to the upper surface of the side wall, the inner edge of the elastic wave is connected to the outer edge of the drum paper, and the inner edge of the drum paper is connected to the voice coil.

[0006] In some optional embodiments, the elastic wave is wave-shaped and includes a plurality of corrugated portions.

[0007] In some optional embodiments, the bottom surface of the elastic wave is flush with the upper surface of the side wall.

[0008] In some optional embodiments, the outer side of the upper surface of the side wall has a convex ridge.

[0009] In some optional embodiments, the inner side edge of the drum paper extends obliquely downward and is connected to the voice coil; the outer side edge of the drum paper extends vertically downward and is connected to the elastic wave.

[0010] In some optional embodiments, the basin frame has a through hole in the center, and the spring sheet includes an annular portion located in the through hole, and a plurality of connecting portions for connecting the annular portion to the basin frame.

[0011] In some optional embodiments, the magnetic assembly includes a U-iron and a magnet and a quartz that are sequentially arranged in the U-iron, and the U-iron is arranged on the annular portion.

[0012] In some optional embodiments, the upper surface of the basin frame is lower than the upper surface of the U-iron, and the lower surface of the basin frame is higher than the lower surface of the U-iron.

[0013] In some optional implementations, the drum paper is higher than the U iron, and the spring wave is not higher than the U iron.

[0014] In some optional embodiments, the inner diameter of the elastic wave is larger than the outer diameter of the U iron.

[0015] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0016] The present application discloses an ultra-thin external elastic wave driven speaker that combines a dynamic coil with a moving iron. The external elastic wave and the use of the elastic wave to replace the folding ring to connect the basin frame and the drum paper can achieve an ultra-thin structure and save space. Exemplarily, the thickness of the speaker of the present application can be less than 10 mm. At the same time, the speaker of the present application, its magnetic component and voice coil can both vibrate, and the two are pushed together inside and outside, which is equivalent to the joint action of two drivers, which can greatly increase the driving force. Compared with ordinary dynamic speakers, the driving force can be increased by about 50%, thereby being able to increase the volume and improve the sound quality while achieving lightness and thinness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments and the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic cross-sectional view of the structure of an ultra-thin external elastic wave driver speaker combining a dynamic coil and a moving iron according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of the top view of the structure of an ultra-thin external elastic wave drive speaker combining a dynamic coil and a moving iron according to an embodiment of the present application;

[0020] Figure 3 It is a bottom-up structural schematic diagram of an ultra-thin external elastic wave drive speaker combining a dynamic coil and a moving iron according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] The terms "first", "second", "third", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0023] The following describes the embodiments in detail.

[0024] refer to Figures 1 to 3 The embodiment of the present application provides an ultra-thin external elastic wave drive speaker (hereinafter referred to as speaker) combining a dynamic coil and a moving iron.

[0025] The speaker of the present application includes a basin frame 10, a spring 18, a vibration component and a magnetic component. The vibration component may include a voice coil 11, a drum paper 12 and a spring 13, and the magnetic component may include a U iron 14, a magnet 15 and a washer 16. In particular, in the speaker of the present application, the vibration component is connected to the basin frame 10, wherein the drum paper 12 is connected to the voice coil 11 but not to the basin frame 10, the spring 13 is connected between the drum paper 12 and the basin frame 10, and the spring 13 is exposed from the basin frame 10; the magnetic component is connected to the basin frame 10 through the spring 18, and can vibrate relative to the basin frame 10,

[0026] In some optional embodiments, the speaker of the present application may be substantially in the shape of a flat disk.

[0027] In some optional embodiments, the outer edge of the basin frame 10 has a vertically extending side wall 101, the outer edge of the elastic wave 13 is connected to the upper surface of the side wall 101, the inner edge of the elastic wave 13 is connected to the outer edge of the drum paper 12, and the inner edge of the drum paper 12 is connected to the voice coil 11.

[0028] In some optional embodiments, the wave spring 13 is wavy and includes a plurality of corrugated portions, which are arranged in sequence along the direction from the basin frame 10 to the drum paper 12 .

[0029] In some optional embodiments, the bottom surface of the wave damper 13 is flush with the upper surface of the side wall 101. The basin frame 10 can be made very thin, and the side wall 101 can be correspondingly very short, so that the bottom surface of the wave damper 13 is flush with the upper surface of the side wall 101, which can prevent the wave damper 13 from touching the basin frame 10 when moving downward and affecting the sound quality.

[0030] In some optional embodiments, the outer side of the upper surface of the side wall 101 has a ridge 102. The outer edge of the elastic wave 13 can be glued to the upper surface of the side wall 101 by glue, and the ridge 102 can prevent the glue from overflowing. In addition, the ridge 102 also helps prevent the outer edge of the elastic wave 13 from warping.

[0031] In some optional implementations, the spring wave 13 is lower than the drum paper 12 .

[0032] In some optional implementations, the inner side of the drum paper 12 extends obliquely downward to be connected to the voice coil 11 ; the outer side of the drum paper 12 extends vertically downward to be connected to the damper 13 .

[0033] In some optional implementations, the main body of the drum paper 12 is a planar diaphragm, which is in a circular ring shape when viewed from above.

[0034] In some optional embodiments, the basin frame 10 has a through hole 103 in the center, and the spring piece 18 includes an annular portion 181 located in the through hole 103 and a plurality of connecting portions 182 for connecting the annular portion 181 to the basin frame 10 .

[0035] In some optional embodiments, the U iron 14 is disposed on the annular portion 181 .

[0036] In some optional implementations, the magnet 15 and the washer 16 are sequentially arranged inside the U-iron 14 , and the upper surface of the U-iron 14 is substantially flush with the upper surface of the washer 16 .

[0037] In some optional embodiments, the height of the basin frame 10 is less than the height of the U-iron 14. Specifically, the upper surface of the U-iron 14 is higher than the upper surface of the side wall 101 of the basin frame 10, and the lower surface of the U-iron 14 is lower than the lower surface of the basin frame 10. In this way, the overall thickness of the speaker can be reduced to the greatest extent, while leaving vibration space for the magnetic component.

[0038] In some optional implementations, the drum paper 12 is higher than the U iron 14 , and the spring wave 13 is not higher than the U iron 14 .

[0039] In some optional embodiments, the inner diameter of the elastic wave 13 is larger than the outer diameter of the U iron 14 .

[0040] In some optional embodiments, the damper 13 and the drum paper 12 are an integrated structure.

[0041] In some optional embodiments, the speaker of the present application further includes a protrusion 17 disposed on one side of the basin frame 10. The protrusion 17 may, for example, be provided with a square, circular or elliptical opening, and the protrusion 17 may be used for handholding or connection with the outside.

[0042] In some optional implementations, a dust cap may or may not be provided above the voice coil 11 .

[0043] As described above, the present application discloses an ultra-thin external spring-driven speaker that combines a dynamic coil with a moving iron. The speaker of the present application, together with the spring 13 and the drum paper 12, is exposed to the outside of the speaker. The speaker of the present application can achieve an ultra-thin structure and save space by using the external spring 13 and the spring 13 instead of the folding ring to connect the basin frame 10 and the drum paper 12. For example, the thickness of the speaker of the present application can be less than 10 mm.

[0044] At the same time, the speaker of the present application, its magnetic component and voice coil 11 can both vibrate, and the two push together inside and outside, which is equivalent to the two drivers working together, which can greatly improve the driving force. Compared with ordinary dynamic speakers, the driving force can be increased by about 50% or more, thereby achieving lightness and thinness while increasing the volume and sound quality.

[0045] The speaker of the present application can meet various ultra-thin applications, as well as smart homes, robots, AI (artificial intelligence), etc.

[0046] In the above, the technical solution of the present application is described in detail through specific embodiments. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. A person skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An ultra-thin external spring-driven speaker combining a moving coil and a moving iron, comprising a basin frame, a spring sheet, a vibration component and a magnetic component, wherein the vibration component comprises a voice coil, a drum paper and a spring, characterized in that: The drum paper is connected to the voice coil but not connected to the basin frame, the spring wave is connected between the drum paper and the basin frame, and the spring wave is exposed from the basin frame; The magnetic assembly is connected to the basin frame through the spring sheet and can vibrate relative to the basin frame.

2. The ultra-thin external elastic wave driver speaker combining a moving coil and a moving iron according to claim 1, characterized in that: The outer edge of the basin frame has a vertically extending side wall, the outer edge of the elastic wave is connected to the upper surface of the side wall, the inner edge of the elastic wave is connected to the outer edge of the drum paper, and the inner edge of the drum paper is connected to the voice coil.

3. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 1, characterized in that: The elastic wave is in a wave shape and includes a plurality of corrugated parts.

4. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 1, characterized in that: The bottom surface of the elastic wave is flush with the upper surface of the side wall.

5. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 4, characterized in that: The outer side of the upper surface of the side wall has a convex ridge.

6. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 1, characterized in that: The inner side edge of the drum paper extends obliquely downward and is connected to the voice coil; the outer side edge of the drum paper extends vertically downward and is connected to the spring.

7. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 1, characterized in that: The center of the basin frame is provided with a through hole, and the elastic sheet comprises an annular portion located in the through hole, and a plurality of connecting portions for connecting the annular portion to the basin frame.

8. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 7, characterized in that: The magnetic assembly includes a U-iron and a magnet and a quartz that are sequentially arranged in the U-iron, and the U-iron is arranged on the annular portion.

9. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 8, characterized in that: The drum paper is higher than the U iron, and the spring wave is not higher than the U iron.

10. The ultra-thin external spring-driven speaker combining a moving coil and a moving iron according to claim 8, characterized in that: The inner diameter of the elastic wave is larger than the outer diameter of the U iron.

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