Ultra-thin external suspension wave driving loudspeaker with moving coil and moving iron combined
The ultra-thin external spider drive speaker, which combines a dynamic coil and a balanced armature, uses an external spider to connect the frame and the diaphragm, solving the problem of reduced driving force during the process of making the speaker thinner and lighter, thus achieving a thinner and better sound quality.
Patent Information
- Application Number
- CN202423031476.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-10
AI Technical Summary
As existing speakers become thinner and lighter, their driving force decreases, making it difficult to simultaneously achieve the requirements of thinner speakers and better sound quality.
It adopts an ultra-thin external spider drive structure that combines a moving coil and a moving iron. The external spider connects the frame and the diaphragm, replacing the surround, thus achieving an ultra-thin design. It also utilizes the joint vibration of the magnetic components and the voice coil to improve the driving force.
It achieves a thinner and lighter speaker while increasing the driving force by more than 50%, thus improving the volume and sound quality.
Smart Images
Figure CN223613473U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of acoustics, in particular to a dynamic-coil and dynamic-iron combined ultrathin external spring-wave driven loudspeaker. BACKGROUND
[0002] With the development of market demand and electronic technology, various electronic products are developing towards thinner and smaller directions, and the quality requirements are becoming higher and higher. A loudspeaker (speaker) is an essential accessory of most electronic products with audio output, and therefore, the loudspeaker also needs to be thinner, smaller and better in sound quality. In addition, with the thinning of the loudspeaker, the driving force is correspondingly reduced. CONTENT OF THE UTILITY MODEL
[0003] The application mainly solves the technical problem of providing a dynamic-coil and dynamic-iron combined ultrathin external spring-wave driven loudspeaker.
[0004] The application provides a dynamic-coil and dynamic-iron combined ultrathin external spring-wave driven loudspeaker, which comprises a frame, a spring plate, a vibration assembly and a magnetic assembly. The vibration assembly comprises a voice coil, a drum paper and a spring wave. The drum paper is connected to the voice coil but not connected to the frame. The spring wave is connected between the drum paper and the frame, and the spring wave is exposed to the frame and is lower than the drum paper. The magnetic assembly is connected to the frame through the spring plate and can vibrate relative to the frame.
[0005] In some optional embodiments, the outer edge of the frame has a vertically extending side wall, the outer edge of the spring wave is connected to the upper surface of the side wall, the inner edge of the spring wave is connected to the outer side edge of the drum paper, and the inner side edge of the drum paper is connected to the voice coil.
[0006] In some optional embodiments, the spring wave is in a wave shape and comprises a plurality of wave parts.
[0007] In some optional embodiments, the bottom surface of the spring 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 rib.
[0009] In some optional embodiments, the inner side edge of the drum paper extends downward and is connected to the voice coil, and the outer side edge of the drum paper extends downward and is connected to the spring wave.
[0010] In some optional embodiments, the center of the frame has a through hole, the spring plate comprises an annular part located in the through hole and a plurality of connecting parts for connecting the annular part to the frame.
[0011] In some alternative embodiments, the magnetic assembly comprises a U-shaped iron, a magnet and a yoke arranged in the U-shaped iron in sequence, and the U-shaped iron is arranged on the annular portion.
[0012] In some alternative embodiments, the upper surface of the yoke is lower than the upper surface of the U-shaped iron, and the lower surface of the yoke is higher than the lower surface of the U-shaped iron.
[0013] In some alternative embodiments, the drum paper is higher than the U-shaped iron, and the damper is not higher than the U-shaped iron.
[0014] In some alternative embodiments, the inner diameter of the damper is greater than the outer diameter of the U-shaped iron.
[0015] From the above technical solutions, the embodiments of the present application have the following advantages:
[0016] The present application discloses a dynamic coil and dynamic iron combined ultra-thin external damper driven loudspeaker, which can realize an ultra-thin structure and save space by using an external damper and replacing a folded ring with the damper to connect a yoke and a drum paper. For example, the thickness of the loudspeaker of the present application can be within 10 mm. Meanwhile, the loudspeaker of the present application can vibrate both the magnetic assembly and the voice coil, and the two can push together, which is equivalent to two driving forces, so that the driving force can be greatly improved, and the driving force of the ordinary dynamic coil loudspeaker can be improved by more than 50%, so that the loudspeaker can realize thin and light and improve the volume and sound quality. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments and the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Fig. 1 is a cross-sectional structure schematic diagram of the dynamic coil and dynamic iron combined ultra-thin external damper driven loudspeaker of the embodiments of the present application;
[0019] Fig. 2 is a top view structure schematic diagram of the dynamic coil and dynamic iron combined ultra-thin external damper driven loudspeaker of the embodiments of the present application;
[0020] Fig. 3 is a bottom view structure schematic diagram of the dynamic coil and dynamic iron combined ultra-thin external damper driven loudspeaker of the embodiments of the present application. DETAILED DESCRIPTION
[0021] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present application.
[0022] The terms "first", "second", "third", etc. in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed, or can optionally further include other steps or units inherent to the process, method, product or device.
[0023] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present application.
[0024] Reference Figs. 1 to 3 The embodiments of the present application provide a loudspeaker with a moving coil and a moving iron combined with an ultra-thin external wave spring.
[0025] The loudspeaker of the present application includes a basket 10, a diaphragm 18, a vibration assembly and a magnetic assembly. The vibration assembly can include a voice coil 11, a cone 12 and a wave spring 13, and the magnetic assembly can include a U-shaped iron 14, a magnet 15 and a dust cap 16. In particular, in the loudspeaker of the present application, the vibration assembly is connected to the basket 10, wherein the cone 12 is connected to the voice coil 11 but not connected to the basket 10, the wave spring 13 is connected between the cone 12 and the basket 10, and the wave spring 13 is exposed from the basket 10; the magnetic assembly is connected to the basket 10 through the diaphragm 18 and can vibrate relative to the basket 10,
[0026] In some optional embodiments, the loudspeaker of the present application can be substantially in the shape of a flat disc.
[0027] In some optional embodiments, the outer edge of the basket 10 has a vertically extending side wall 101, the outer edge of the wave spring 13 is connected to the upper surface of the side wall 101, the inner edge of the wave spring 13 is connected to the outer side edge of the cone 12, and the inner side edge of the cone 12 is connected to the voice coil 11.
[0028] In some optional embodiments, the wave spring 13 is in a wave shape and includes a plurality of corrugated portions. The plurality of corrugated portions are arranged in sequence along the direction from the basket 10 to the cone 12.
[0029] In some alternative embodiments, the bottom surface of the damper 13 is flush with the upper surface of the side wall 101. The speaker cone 10 can be made very thin, and the side wall 101 can be correspondingly low, so that the bottom surface of the damper 13 is flush with the upper surface of the side wall 101, and the damper 13 can avoid touching the speaker cone 10 when it is displaced downward, thereby affecting the sound quality.
[0030] In some alternative embodiments, the upper surface of the side wall 101 has a convex rib 102 on the outer side. The outer edge of the damper 13 can be bonded to the upper surface of the side wall 101 by glue, and the convex rib 102 can prevent the glue from overflowing. In addition, the convex rib 102 can also help prevent the outer edge of the damper 13 from being raised.
[0031] In some alternative embodiments, the damper 13 is lower than the drum paper 12.
[0032] In some alternative embodiments, the inner side of the drum paper 12 extends downward and connects to the voice coil 11, and the outer side of the drum paper 12 extends downward and connects to the damper 13.
[0033] In some alternative embodiments, the main part of the drum paper 12 is a planar diaphragm, which is circular in plan view.
[0034] In some alternative embodiments, the speaker cone 10 has a through hole 103 in the center, and the gusset 18 includes an annular portion 181 in the through hole 103 and a plurality of connecting portions 182 for connecting the annular portion 181 to the speaker cone 10.
[0035] In some alternative embodiments, the U-shaped iron 14 is arranged on the annular portion 181.
[0036] In some alternative embodiments, the magnet 15 and the dust shield 16 are arranged in the U-shaped iron 14 in sequence, and the upper surface of the U-shaped iron 14 is substantially flush with the upper surface of the dust shield 16.
[0037] In some alternative embodiments, the height of the speaker cone 10 is less than the height of the U-shaped iron 14. Specifically, the upper surface of the U-shaped iron 14 is higher than the upper surface of the side wall 101 of the speaker cone 10, and the lower surface of the U-shaped iron 14 is lower than the lower surface of the speaker cone 10. In this way, the overall thickness of the speaker can be reduced to the greatest extent, and vibration space can be left for the magnetic assembly.
[0038] In some alternative embodiments, the drum paper 12 is higher than the U-shaped iron 14, and the damper 13 is not higher than the U-shaped iron 14.
[0039] In some alternative embodiments, the inner diameter of the damper 13 is greater than the outer diameter of the U-shaped iron 14.
[0040] In some alternative embodiments, the damper 13 and the drum paper 12 are integrated.
[0041] In some optional embodiments, the loudspeaker of the present application further comprises a protruding part 17 arranged on one side of the basket 10, which can be provided with a square or circular or oval opening, for example, and can be used for hand holding or external connection.
[0042] In some optional embodiments, a dust cap can or can not be arranged above the voice coil 11.
[0043] In the above, the present application discloses a super-thin external suspension wave driving loudspeaker combined with moving coil and moving iron. The suspension wave 13 and the cone paper 12 of the loudspeaker of the present application are exposed to the outside of the loudspeaker. The loudspeaker of the present application can realize a super-thin structure and save space by arranging the external suspension wave 13 and using the suspension wave 13 to replace the folded ring to connect the basket 10 and the cone paper 12. For example, the thickness of the loudspeaker of the present application can be within 10 mm.
[0044] At the same time, the loudspeaker of the present application can vibrate both the magnetic assembly and the voice coil 11, and the two can push together, which is equivalent to two driving forces acting together, so that the driving force can be greatly improved, which can be improved by more than 50% compared with the driving force of the ordinary moving coil loudspeaker, so as to realize thin and light and improve the volume and sound quality.
[0045] The loudspeaker of the present application can meet various super-thin applications, smart home, robots, AI (artificial intelligence), etc.
[0046] In the above, the technical solutions of the present application are described in detail through specific embodiments. In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related 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, but not to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and protection scope of the technical solutions of the embodiments of the present application.
Claims
1. A loudspeaker driven by an external ultra-thin voice coil and moving iron, comprising a basket, a spider, a vibration assembly and a magnetic assembly, wherein the vibration assembly comprises a voice coil, a cone and a surround, characterized in that the cone is connected to the voice coil but not to the basket, the surround is connected between the cone and the basket, the surround is exposed from the basket and is lower than the cone; the magnetic assembly is connected to the basket through the spider and can vibrate relative to the basket. The outer edge of the basket has a vertically extending side wall, the outer edge of the surround is connected to the upper surface of the side wall, the inner edge of the surround is connected to the outer side edge of the cone, and the inner side edge of the cone is connected to the voice coil. The surround is in a wave shape and comprises a plurality of wave portions.
2. The moving-coil and moving-iron combined ultra-thin external wave spring driven loudspeaker of claim 1, wherein, The bottom surface of the surround is flush with the upper surface of the side wall.
3. The ultra-thin external spider-driven horn combining a moving coil and a moving iron as described in claim 1, characterized in that, The outer side of the upper surface of the side wall has a convex rib.
4. The moving-coil and moving-iron combined ultra-thin external-wave spring driven loudspeaker of claim 2, wherein, The inner side edge of the cone extends downwardly and is connected to the voice coil, and the outer side edge of the cone extends downwardly and perpendicularly and is connected to the surround.
5. The moving-coil and moving-iron combined ultra-thin external-spider-surrounded-surging-wave driven loudspeaker of claim 4, wherein, The basket has a through hole in the center, the spider comprises a ring portion in the through hole and a plurality of connecting portions for connecting the ring portion to the basket.
6. The moving-coil and moving-iron combined ultra-thin external-spider-surrounded-surging-wave driven loudspeaker of claim 1, wherein, The magnetic assembly comprises a U-shaped iron, a magnet and a yoke which are sequentially arranged in the U-shaped iron, and the U-shaped iron is arranged on the ring portion.
7. The moving-coil and moving-iron combined ultra-thin external-spider-surrounded-surging-wave driven loudspeaker of claim 1, wherein, The cone is higher than the U-shaped iron, and the surround is not higher than the U-shaped iron.
8. The ultra-thin external spider-driven horn combining a moving coil and a moving iron as described in claim 7, characterized in that, The inner diameter of the surround is greater than the outer diameter of the U-shaped iron.
9. The ultra-thin external spider-driven horn combining a moving coil and a moving iron as described in claim 8, characterized in that, 10. The ultra-thin external spider-driven horn combining a moving coil and a moving iron as described in claim 8, characterized in that,