Loudspeaker

Abstract

The present application relates to the technical field of electroacoustic conversion, and provides a loudspeaker, which comprises a basket, a vibration system fixed to the basket, and a magnetic circuit system provided with a magnetic gap. The vibration system comprises a diaphragm assembly fixed onto the basket and a voice coil assembly used for driving the diaphragm assembly to vibrate and produce sound. The diaphragm assembly comprises a dome located in the middle, a surround that is around the dome and fixed to the basket, and a connecting wall formed by extending from the dome to the voice coil assembly. The connecting wall is integrally formed. The connecting wall comprises a connecting part used for connecting the dome and the surround, and a first suspension part and a second suspension part that are arranged on the side away from the dome and spaced apart from one another. The vibration system further comprises a first damper assembly and a second damper assembly that are fixed to the basket and spaced apart from one another. The end of the first damper assembly away from the basket is connected to the first suspension part, and the end of the second damper assembly away from the basket is connected to the second suspension part. Thus, the space utilization can be improved, ultra-thinness can be achieved, and the vibration system can have good balance performance.

Description

speaker Technical Field

[0001] The present application relates to the technical field of electroacoustic conversion, and in particular to a loudspeaker. Background Art

[0002] The car speaker industry generally uses traditional paper cone speakers. Currently, cars have higher requirements for high sound quality, flexible layout, low power consumption and small vibration of speakers.

[0003] The car speakers in the related technology include a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap. The magnetic circuit system drives the vibration system to vibrate and produce sound. The vibration system includes a diaphragm fixed to the basin frame and a voice coil assembly fixed to the diaphragm and inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound. However, it has the problems of large structural size, low efficiency, and large low-frequency vibration.

[0004] Therefore, it is necessary to provide a new speaker to solve the above problems. Technical issues

[0005] The purpose of the present application is to provide a loudspeaker with improved space utilization, ultra-thinness and good vibration system balance. Technical Solutions

[0006] The technical solution of the present application is as follows: A loudspeaker comprises a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system having a magnetic gap.

[0007] The vibration system includes a diaphragm assembly fixed to the basin frame and a voice coil assembly for driving the diaphragm assembly to vibrate and produce sound;

[0008] The diaphragm assembly includes a dome located in the middle, a fold surrounding the dome and fixed to the basin frame, and a connecting wall extending from the dome toward the voice coil assembly. The connecting wall is integrally formed and includes a connecting portion for connecting the dome and the fold, a first hanging portion and a second hanging portion provided on a side away from the dome and spaced apart from each other.

[0009] The vibration system also includes a first elastic wave assembly and a second elastic wave assembly fixed to the basin frame and spaced apart from each other. The end of the first elastic wave assembly away from the basin frame is connected to the first suspension part, and the end of the second elastic wave assembly away from the basin frame is connected to the second suspension part.

[0010] According to one embodiment of the present application, the connecting portion has a through opening, the connecting portion is connected to the spherical top so that the spherical top cover is arranged on the through opening, and the first hanging portion and the second hanging portion are respectively located on two symmetrical sides of the through opening.

[0011] According to one embodiment of the present application, the connecting wall also includes a first fixing portion connecting the connecting portion and the first suspension portion, the first fixing portion including a first vertical segment extending from the connecting portion toward the voice coil assembly and connected to the first suspension portion, and a first horizontal segment extending from the first vertical segment toward the through-portion and connected to the connecting portion, the first vertical segment and the first horizontal segment having different lengths.

[0012] According to one embodiment of the present application, a plurality of first fixing portions are provided, and a first reinforcing portion is provided between adjacent first fixing portions.

[0013] According to one embodiment of the present application, the connecting wall also includes a second fixing portion connecting the connecting portion and the second suspension portion, the second fixing portion includes a second vertical segment extending from the connecting portion toward the voice coil assembly and connected to the second suspension portion, and a second horizontal segment extending from the second vertical segment toward the through-portion and connected to the connecting portion, and the lengths of the second vertical segment and the second horizontal segment are different.

[0014] According to one embodiment of the present application, a plurality of second fixing portions are provided, and a second reinforcement portion is provided between adjacent second fixing portions.

[0015] According to one embodiment of the present application, the voice coil assembly includes a square voice coil movably arranged in the magnetic gap and a skeleton connecting the square voice coil and the diaphragm assembly, and the skeleton is provided with a symmetrical first outlet portion and a second outlet portion on a side away from the square voice coil.

[0016] According to one embodiment of the present application, the speaker also includes a first external soldering pad and a second external soldering pad embedded in the basin frame and connected to the external circuit, a first braided wire connecting the first external soldering pad and the first outlet portion, and a second braided wire connecting the second external soldering pad and the second outlet portion, and the first braided wire and the second braided wire are located in the basin frame.

[0017] According to one embodiment of the present application, the magnetic circuit system includes a magnetic bowl, a magnet accommodated in the magnetic bowl, and a pole core attached to the surface of the magnet, and the square voice coil is movably arranged in the magnetic gap between the pole core and the magnetic bowl.

[0018] According to one embodiment of the present application, the basin frame is rectangular, and the basin frame includes a main body having a accommodating space and for installing the magnetic circuit system, a first mounting portion formed in the accommodating space and located on one side of the main body portion, and a second mounting portion formed in the accommodating space and located on the other side of the main body portion. The first elastic wave component is installed on the first mounting portion, and the second elastic wave component is installed on the second mounting portion. Beneficial effects

[0019] The beneficial effects of the present application are: providing a loudspeaker whose vibration system includes a diaphragm assembly fixed to a basin frame and a voice coil assembly for driving the diaphragm assembly to vibrate and produce sound; the diaphragm assembly includes a dome located in the middle, a folding ring surrounding the dome and fixed to the basin frame, and a connecting wall extending from the dome toward the voice coil assembly, the connecting wall being formed in one piece, the connecting wall including a connecting portion for connecting the dome and the folding ring, a first suspension portion and a second suspension portion arranged on a side away from the dome and spaced apart from each other; the vibration system also includes a first damper assembly and a second damper assembly fixed to the basin frame and spaced apart from each other, the end of the first damper assembly away from the basin frame being connected to the first suspension portion, and the end of the second damper assembly away from the basin frame being connected to the second suspension portion, so that the first damper assembly and the second damper assembly reasonably utilize the internal space of the loudspeaker, reduce the height of the loudspeaker, and facilitate the development of ultra-thinness. At the same time, the first suspension portion cooperates with the first damper assembly, and the second suspension portion cooperates with the second damper assembly, thereby improving the balance of the vibration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of the three-dimensional structure of a loudspeaker provided in this application;

[0021] FIG2 is a schematic diagram of a partially exploded three-dimensional structure of a speaker provided in this application;

[0022] FIG3 is a schematic diagram of an exploded three-dimensional structure of a speaker provided in this application;

[0023] FIG4 is a cross-sectional view taken along the AA direction in FIG1 ;

[0024] FIG5 is a schematic diagram of the three-dimensional structure of the connecting wall of the present application from one perspective;

[0025] FIG6 is a schematic diagram of the three-dimensional structure of the connecting wall of the present application from another perspective. Modes for Carrying Out the Invention

[0026] The present application will be further described below with reference to the accompanying drawings and implementation methods.

[0027] Referring to Figures 1 to 4 , a speaker according to an embodiment of the present application includes a frame 10, a vibration system 20, and a magnetic circuit system 30 having a magnetic gap 301. Magnetic circuit system 30 is used to drive vibration system 20 to vibrate and produce sound. Frame 10 is used to secure vibration system 20 and magnetic circuit system 30.

[0028] 1 to 4 , the vibration system 20 includes a diaphragm assembly 21 fixed to a frame 10 and a voice coil assembly 22 for driving the diaphragm assembly 21 to vibrate and generate sound.

[0029] 2 to 4 , the diaphragm assembly 21 includes a dome 211 in the middle, a folding ring 212 surrounding the dome 211 and fixed to the frame 10, and a connecting wall 213 extending from the dome 211 toward the voice coil assembly 22. The connecting wall 213 is integrally formed and includes a connecting portion 2131 for connecting the dome 211 and the folding ring 212, a first suspension portion 2132, and a second suspension portion 2133 located on a side away from the dome 211 and spaced apart from each other.

[0030] Referring to Figures 2 to 4, the vibration system 20 also includes a first damper assembly 23 and a second damper assembly 24 fixed to the basin frame 10 and spaced apart from each other. The end of the first damper assembly 23 away from the basin frame 10 is connected to the first hanging portion 2132, and the end of the second damper assembly 24 away from the basin frame 10 is connected to the second hanging portion 2133.

[0031] In this embodiment, the first and second damper assemblies 23 and 24 rationally utilize the speaker's internal space, reducing its height and facilitating ultra-thin design. This speaker, when used in a vehicle, can meet the requirements for high sound quality, compact size, flexible layout, low power consumption, and minimal vibration. Furthermore, the first suspension portion 2132 cooperates with the first damper assembly 23, and the second suspension portion 2133 cooperates with the second damper assembly 24, improving the balance of the vibration system and enhancing the speaker's acoustic performance.

[0032] In some embodiments, as shown in Figures 1 to 3 , the frame 10 is rectangular, giving the speaker a rectangular shape. The frame 10 includes a main body 12 with a housing 11 for mounting the magnetic circuit system 30, a first mounting portion 13 formed within the housing 11 and located on one side of the main body 12, and a second mounting portion 14 formed within the housing 11 and located on the other side of the main body 12. The first damper assembly 23 is mounted on the first mounting portion 13, and the second damper assembly 24 is mounted on the second mounting portion 14. This embodiment of the speaker effectively utilizes the internal space of the speaker, resulting in a compact layout and facilitating ultra-thin design.

[0033] In some embodiments, referring to Figures 2 and 3 , the first and second damper assemblies 23 and 24 have the same structure and are runway-shaped. In one feasible embodiment, the first damper assembly 23 includes a first damper fixing portion 231, a first damper edge portion 232, a second damper fixing portion 233, a first damper connecting portion 234 connecting the first damper fixing portion 231 and the first damper edge portion 232, and a second damper connecting portion 235 connecting the first damper edge portion 232 and the second damper fixing portion 233. The first damper fixing portion 231 is fixed to the basin frame 10, and the second damper fixing portion 233 is connected to the first hanging portion 2132. In a feasible embodiment, the second elastic wave assembly 24 includes a third elastic wave fixing portion 241, a second elastic wave edge portion 242, a fourth elastic wave fixing portion 243, a third elastic wave connecting portion 244 connecting the third elastic wave fixing portion 241 and the second elastic wave edge portion 242, and a fourth elastic wave connecting portion 245 connecting the second elastic wave edge portion 242 and the fourth elastic wave fixing portion 243; the third elastic wave fixing portion 241 is fixed on the basin frame 10, and the fourth elastic wave fixing portion 243 is connected to the second hanging portion 2133.

[0034] As shown in Figures 2 through 4 , the first, second, third, and fourth damper connecting portions 234, 235, 244, and 245 have wavy cross-sections along the vibration direction. These wavy damper components offer enhanced shock absorption, improving the stability of the vibration system 20 and ultimately enhancing the speaker's performance.

[0035] 5-6 , the connecting portion 2131 has a through opening 201 adapted to the spherical top 211 , and the connecting portion 2131 connects to the spherical top 211 so that the spherical top 211 covers the through opening 201 . The first hanging portion 2132 and the second hanging portion 2133 are respectively located on two symmetrical sides of the through opening 201 .

[0036] Referring to Figures 5-6 , the connecting wall 213 also includes a first fixing portion 2134 connected to the connecting portion 2131 and the first hanging portion 2132. The first fixing portion 2134 includes a first vertical segment 1 extending from the connecting portion 2131 toward the voice coil assembly 22 and connected to the first hanging portion 2132, and a first horizontal segment 2 extending from the first vertical segment 1 toward the opening 201 and connected to the connecting portion 2031. The first vertical segment 1 and the first horizontal segment 2 have different lengths. Multiple first fixing portions 2134 may be provided, with first reinforcement portions 2135 disposed between adjacent first fixing portions 2134.

[0037] Referring to Figures 5-6 , the connecting wall 213 also includes a second fixing portion 2136 connected to the connecting portion 2131 and the second hanging portion 2133. The second fixing portion 2136 includes a second vertical segment 3 extending from the connecting portion 2131 toward the voice coil assembly 22 and connected to the second hanging portion 2133, and a second horizontal segment 4 extending from the second vertical segment 3 toward the opening 201 and connected to the connecting portion 2131. The second vertical segment 3 and the second horizontal segment 4 have different lengths. Multiple second fixing portions 2136 may be provided, with second reinforcement portions 2137 disposed between adjacent second fixing portions 2136.

[0038] The cross-sections of the first fixing portion 2134 and the second fixing portion 2136 of this embodiment may be regular or irregular, and the first reinforcement portion 2135 and the second reinforcement portion 2137 may be sheet-like reinforcement ribs, which can provide good high-frequency structural strength, thereby improving the acoustic performance of the speaker.

[0039] Referring to Figures 2 to 4 , the voice coil assembly 22 includes a square voice coil 221 movably positioned within the magnetic gap 301, and a frame 222 connecting the square voice coil 221 and the diaphragm assembly 21. A first wire outlet 2221 and a second wire outlet 2222 are symmetrically positioned on the side of the frame 222 facing away from the voice coil 221. This embodiment utilizes wire outlets along the upper side of the frame 222, improving space utilization and simplifying wire management.

[0040] Referring to Figures 2 and 3, the speaker further includes a first external solder pad 40 and a second external solder pad 50 embedded in the frame 10 and connected to an external circuit, a first braided wire 60 connecting the first external solder pad 40 and the first wire outlet 2221, and a second braided wire 70 connecting the second external solder pad 50 and the second wire outlet 2222. The first braided wire 60 and the second braided wire 70 are located within the frame 10. In this embodiment, the first braided wire 60 and the second braided wire 70 form a natural curvature on the upper side of the skeleton 222, ensuring that the braided wires do not interfere with the square voice coil 221 and the frame 10 during movement. Furthermore, the braided wires are located within the frame 10 and connected to the outside through the external solder pads, preventing them from being exposed, thereby improving the safety and service life of the speaker.

[0041] Referring to Figures 3 and 4 , the magnetic circuit system 30 includes a magnetic bowl 31, a magnet 32 ​​housed within the magnetic bowl 31, and a pole core 33 attached to the surface of the magnet 32. The square voice coil 221 is movably disposed within a magnetic gap 301 between the pole core 33 and the magnetic bowl 31. In this embodiment, the square voice coil 221 moves up and down within the magnetic gap 301 between the pole core 33 and the magnetic bowl 31. This, combined with the square magnetic circuit, fully utilizes the internal space of the speaker and, compared to a circular magnetic circuit system, can provide higher magnetic energy, thereby improving the sensitivity of the speaker.

[0042] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. A loudspeaker comprising a frame, a vibration system fixed to the frame, and a magnetic circuit system having a magnetic gap, characterized in that: The vibration system includes a diaphragm assembly fixed to the basin frame and a voice coil assembly for driving the diaphragm assembly to vibrate and produce sound; The diaphragm assembly includes a dome located in the middle, a fold surrounding the dome and fixed to the basin frame, and a connecting wall extending from the dome toward the voice coil assembly. The connecting wall is integrally formed and includes a connecting portion for connecting the dome and the fold, a first hanging portion and a second hanging portion provided on a side away from the dome and spaced apart from each other. The vibration system also includes a first elastic wave assembly and a second elastic wave assembly fixed to the basin frame and spaced apart from each other. The end of the first elastic wave assembly away from the basin frame is connected to the first suspension part, and the end of the second elastic wave assembly away from the basin frame is connected to the second suspension part.

2. The loudspeaker according to claim 1, wherein: The connecting portion has a through opening, and the connecting portion is connected to the spherical top so that the spherical top is covered on the through opening. The first hanging portion and the second hanging portion are respectively located on two symmetrical sides of the through opening.

3. The loudspeaker according to claim 2, wherein: The connecting wall also includes a first fixing portion connecting the connecting portion and the first suspension portion, the first fixing portion including a first vertical segment extending from the connecting portion toward the voice coil assembly and connected to the first suspension portion, and a first horizontal segment extending from the first vertical segment toward the through-portion and connected to the connecting portion, the first vertical segment and the first horizontal segment having different lengths.

4. The loudspeaker according to claim 3, wherein: A plurality of the first fixing portions are provided, and a first reinforcement portion is provided between adjacent first fixing portions.

5. The loudspeaker according to claim 2, wherein: The connecting wall also includes a second fixing portion connecting the connecting portion and the second hanging portion, the second fixing portion including a second vertical segment extending from the connecting portion toward the voice coil assembly and connected to the second hanging portion, and a second horizontal segment extending from the second vertical segment toward the through-portion and connected to the connecting portion, the second vertical segment and the second horizontal segment having different lengths.

6. The loudspeaker according to claim 5, characterized in that: A plurality of the second fixing portions are provided, and a second reinforcing portion is provided between adjacent second fixing portions.

7. The loudspeaker according to claim 1, wherein: The voice coil assembly includes a square voice coil movably arranged in the magnetic gap and a frame connecting the square voice coil and the diaphragm assembly. The frame is provided with a symmetrical first and second wire outlet portions on a side away from the square voice coil.

8. The loudspeaker according to claim 7, wherein: The speaker also includes a first external soldering pad and a second external soldering pad embedded in the basin and connected to the external circuit, a first braided wire connecting the first external soldering pad and the first outlet part, and a second braided wire connecting the second external soldering pad and the second outlet part. The first braided wire and the second braided wire are located in the basin.

9. The loudspeaker according to claim 7, wherein: The magnetic circuit system includes a magnetic bowl, a magnet accommodated in the magnetic bowl, and a pole core attached to the surface of the magnet. The square voice coil is movably arranged in the magnetic gap between the pole core and the magnetic bowl.

10. The loudspeaker according to claim 1, wherein: The basin frame is rectangular and includes a main body having a accommodating space and for installing the magnetic circuit system, a first mounting portion formed in the accommodating space and located on one side of the main body portion, and a second mounting portion formed in the accommodating space and located on the other side of the main body portion. The first elastic wave component is installed on the first mounting portion, and the second elastic wave component is installed on the second mounting portion.

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