Loudspeaker

Abstract

The loudspeaker comprises a basin frame, a voice basin arranged on the basin frame and an auxiliary input driving mechanism, the auxiliary input driving mechanism comprises an auxiliary voice coil and an auxiliary magnetic circuit assembly with an auxiliary magnetic gap, the voice basin is correspondingly provided with an auxiliary voice coil mounting hole, the upper end of the auxiliary voice coil is connected to the auxiliary voice coil mounting hole, and the auxiliary magnetic circuit assembly is provided with an auxiliary magnetic gap. An auxiliary magnetic circuit mounting hole is correspondingly formed in the basin frame, and the lower part of the auxiliary voice coil is inserted into the corresponding auxiliary magnetic gap through the auxiliary magnetic circuit mounting hole; the auxiliary input driving mechanism further comprises an elastic dustproof ring, the dustproof ring is arranged on the auxiliary voice coil in a sleeving mode, the upper end of the dustproof ring is connected with the voice cone, and the lower end of the dustproof ring is connected with the cone frame. In the loudspeaker, the dustproof ring enables the auxiliary magnetic circuit assembly to be substantially in a sealed environment, so that dust and the like are effectively prevented from entering the auxiliary magnetic circuit assembly.

Description

[0001] This application is a divisional application of the invention patent with application date of July 15, 2019 and application number 2019106352859. Technical Field

[0002] The invention belongs to the field of loudspeakers and relates to a loudspeaker driven by multiple inputs. Background Art

[0003] Existing loudspeakers generally use a cone-shaped sound basin (made of paper, PP and other materials) combined with a positioning support structure. A center hole is provided between the cone-shaped sound basin and the positioning support. The positioning support is arranged below the cone-shaped sound basin. A single-channel signal input voice coil is passed through the positioning support and the center hole of the cone-shaped sound basin. The cone-shaped sound basin and the positioning support are respectively glued to the outer wall of the voice coil to form a loudspeaker vibration system. This type of loudspeaker can only be applied to single-channel signal input and has limitations on the original sound reproduction.

[0004] Therefore, one of the current improvements is to use a cone-shaped sound basin combined with a positioning support structure, with a center hole between the cone-shaped sound basin and the positioning support, which is disposed below the cone-shaped sound basin, and the voice coil is changed from a single-channel signal input mode to a multi-channel signal input voice coil and is inserted into the positioning support and the center hole of the cone-shaped sound basin, wherein the voice coil is formed by stacking multiple groups of coils from the inside to the outside, and the cone-shaped sound basin and the positioning support are respectively glued to the outer wall of the voice coil to form a speaker vibration system. This speaker can be applied to multi-channel signal input. However, since this speaker has multiple groups of coils wound around one voice coil, the weight of the voice coil is increased when the voice coil drives the sound basin, the sensitivity of the speaker will be lost. Summary of the invention

[0005] In view of the above problems, the present invention provides an improved loudspeaker.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A loudspeaker comprises a basin frame, a sound cone arranged on the basin frame and a secondary input drive mechanism, wherein the secondary input drive mechanism comprises a secondary voice coil and a secondary magnetic circuit component forming a secondary magnetic gap, the sound cone is provided with a corresponding secondary voice coil mounting hole, the upper end of the secondary voice coil is connected to the secondary voice coil mounting hole, the basin frame is provided with a corresponding secondary magnetic circuit mounting hole, the lower part of the secondary voice coil is inserted into the corresponding secondary magnetic gap through the secondary magnetic circuit mounting hole; the secondary input drive mechanism also comprises an elastic dust ring, the dust ring is sleeved on the secondary voice coil, the upper end of the dust ring is connected to the sound cone, and the lower end of the dust ring is connected to the basin frame.

[0008] In the speaker, the dustproof ring makes the auxiliary magnetic circuit component generally in a sealed environment, effectively preventing dust and the like from entering the auxiliary magnetic circuit component.

[0009] Preferably, the dust ring is provided with a lead hole for the lead wire of the secondary voice coil to pass through.

[0010] Preferably, the dust ring is a corrugated hose.

[0011] Preferably, the dustproof ring is made of cloth, plastic sheet or rubber.

[0012] Preferably, the number of the auxiliary input drive mechanisms is three or more, the speaker further comprises a main input drive mechanism, and the three or more auxiliary input drive mechanisms are arranged at equal intervals along a circle around the main input drive mechanism.

[0013] Preferably, the auxiliary magnetic circuit assembly includes a U-iron with an inner cavity, a second magnetic steel and a magnetic pole core arranged in the U-iron, the auxiliary magnetic gap is formed between the second magnetic steel and the magnetic pole core and the inner wall of the U-iron, the auxiliary voice coil can be inserted in the auxiliary magnetic gap movably up and down, and the upper edge of the U-iron is fixedly connected to the auxiliary magnetic circuit mounting hole of the basin frame; the second magnetic steel includes a main neodymium magnet and a secondary neodymium magnet, and the secondary neodymium magnet, the magnetic pole core and the main neodymium magnet are stacked up and down.

[0014] A loudspeaker with multi-channel input drive, comprising a basin frame and a sound basin arranged on the basin frame, the loudspeaker also comprising a main input drive mechanism and a plurality of auxiliary input drive mechanisms, the main input drive mechanism being arranged between the plurality of auxiliary input drive mechanisms; the main input drive mechanism comprising a main voice coil, a T-iron, a front piece sleeved on the T-iron and a first magnetic steel, a main voice coil mounting hole being provided in the middle of the sound basin, an upper end of the main voice coil being connected to the main voice coil mounting hole, a main magnetic gap being formed between the T-iron and the front piece and the first magnetic steel for inserting the main voice coil, and a main magnetic gap being provided in the middle of the basin frame There is a center hole allowing the lower part of the main voice coil to be inserted into the main magnetic gap; each of the auxiliary input drive mechanisms includes a secondary voice coil and a secondary magnetic circuit component forming a secondary magnetic gap, a plurality of secondary voice coil mounting holes are correspondingly opened on the sound basin, the main voice coil mounting hole is located between the plurality of secondary voice coil mounting holes, the upper end of each secondary voice coil is connected to the corresponding secondary voice coil mounting hole, a plurality of secondary magnetic circuit mounting holes are correspondingly opened on the basin frame, the center hole is located between the plurality of secondary magnetic circuit mounting holes, and the lower part of each secondary voice coil is inserted into the corresponding secondary magnetic gap through the corresponding secondary magnetic circuit mounting hole.

[0015] Preferably, each of the auxiliary input drive mechanisms further comprises an elastic dust ring, which is sleeved on the voice coil, the upper end of the dust ring is connected to the sound cone, and the lower end of the dust ring is connected to the cone frame.

[0016] Preferably, the plurality of auxiliary input drive mechanisms surround the main input drive mechanism or are located on both sides of the main input drive mechanism, the sound basin has a flat bottom, and the main voice coil mounting hole and the auxiliary voice coil mounting hole are opened in the sound basin bottom.

[0017] Preferably, the number of the auxiliary input drive mechanisms is three or more, and the three or more auxiliary input drive mechanisms are arranged at equal intervals along a circle around the main input drive mechanism, the three or more auxiliary voice coil mounting holes are arranged at equal intervals along the circumference around the center line of the main voice coil mounting hole, and the three or more auxiliary magnetic circuit mounting holes are arranged at equal intervals along the circumference around the center line of the center hole.

[0018] More preferably, the sound cone has a flat sound cone bottom that is circular as a whole, the center of the circle coincides with the center of the sound cone bottom, and the main voice coil mounting hole and the sound cone bottom are concentrically arranged.

[0019] More preferably, the sound basin further has a conical edge portion extending obliquely upward from an outer edge of the bottom of the sound basin, and the conical edge portion is fixedly connected to the basin frame via a yoke ring.

[0020] Preferably, the main input drive mechanism further includes a positioning support plate, the main voice coil is movably arranged in the up-down direction through the positioning support plate, the basin frame has a flange surrounding the center hole, the positioning support plate and the flange cooperate with each other so that the positioning support plate is stuck between the inner walls of the flange.

[0021] Preferably, the front piece is fixedly connected to the lower part of the basin frame.

[0022] Preferably, the auxiliary magnetic circuit assembly includes a U-iron with an inner cavity, a second magnetic steel and a magnetic pole core arranged in the U-iron, the auxiliary magnetic gap is formed between the second magnetic steel and the magnetic pole core and the inner wall of the U-iron, the auxiliary voice coil can be inserted in the auxiliary magnetic gap so as to be movably arranged up and down, and the upper edge of the U-iron is fixedly connected to the auxiliary magnetic circuit mounting hole of the basin frame.

[0023] Preferably, the main input drive mechanism and each of the auxiliary input drive mechanisms further include a dust cover, and the main voice coil mounting hole and each of the auxiliary voice coil mounting holes are respectively covered with one of the dust covers.

[0024] The present invention adopts the above solution, which has the following advantages compared with the prior art:

[0025] The multi-channel input driven speaker of the present invention drives the cone vibration by a combination of a main input drive mechanism and four auxiliary input drive mechanisms, thereby increasing the drive energy of the speaker; multiple auxiliary input drive mechanisms are surrounded by the main input drive mechanism, which makes the overall structure more compact and avoids excessive volume while increasing the drive energy of the speaker. The structure is ingenious and reasonable, uses multiple voice coils to drive the cone, has multiple audio signal inputs, reduces product distortion, increases speaker sensitivity, and improves speaker clarity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a speaker according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of a speaker after partial assembly;

[0029] Figure 3 for Figure 1 Schematic diagram of the speaker after assembly;

[0030] Figure 4 for Figure 1 Schematic diagram of the dust ring in .

[0031] in:

[0032] 1. Basin frame; 11. Center hole; 12. Auxiliary magnetic circuit mounting hole; 13. Flange; 2. Sound basin; 21. Sound basin bottom; 211. Main voice coil mounting hole; 212. Auxiliary voice coil mounting hole; 22. Yoke ring; 3. Main input drive mechanism; 31. Dust ring; 32. Main voice coil; 320. Lead wire; 33. Front piece; 34. First magnetic steel; 35. T iron; 36. Positioning support piece; 4. Auxiliary input drive mechanism; 41. Dust cover; 42. Auxiliary voice coil; 420. Lead wire; 43. Auxiliary neodymium magnet; 44. Pole core; 45. Main neodymium magnet; 46. U iron; 47. Dust ring; 470. Lead wire hole; 5. Audio signal input terminal. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0034] This embodiment provides a speaker driven by multiple inputs. Here, multiple inputs refer to having multiple audio signal inputs. The multiple audio signals are input to multiple voice coils, and the multiple voice coils jointly drive the speaker to produce sound.

[0035] Reference Figures 1 to 4 As shown, the speaker includes a basin frame 1 and a sound basin 2 arranged on the basin frame 1, and the speaker also includes a main input drive mechanism 3 and multiple auxiliary input drive mechanisms 4. Among them, the main input drive mechanism 3 is arranged between the multiple auxiliary input drive mechanisms 4. Specifically, the multiple auxiliary input drive mechanisms 4 surround the main input drive mechanism 3 or are located on both sides of the main input drive mechanism 3, and the number of auxiliary input drive mechanisms 4 is preferably three or more. In this embodiment, the number of auxiliary input drive mechanisms 4 is four, and the four auxiliary input drive mechanisms 4 are arranged at equal intervals along a circle around the main input drive mechanism 3.

[0036] Specific as Figure 1 As shown, the main input drive mechanism 3 is located in the middle of the speaker, and includes a main voice coil 32, a T-iron 35, a front piece 33 sleeved on the T-iron 35, and a first magnet 34. A main voice coil mounting hole 211 is provided in the middle of the sound basin 2, and the upper end of the main voice coil 32 is connected to the main voice coil mounting hole 211, that is, the main voice coil 32 is connected to the middle of the sound basin 2 to drive the sound basin 2. The front piece 33 is fixedly connected to the basin frame 1. Specifically, a plurality of upwardly protruding brackets are provided on the front piece 33, and the brackets are inserted into corresponding holes on the bottom of the basin frame 1, and the front piece 33 and the basin frame 1 are tightly connected by riveting. The middle part of the T-iron 35 has a columnar portion extending upward, and the front piece 33 and the first magnetic steel 34 are arranged from top to bottom and a through hole is opened in the middle, so that they are sleeved on the columnar portion on the T-iron 35, and there is a gap between the inner wall of the front piece 33 and the first magnetic steel 34 and the outer surface of the columnar portion of the T-iron 35, so as to form a main magnetic gap, and the front piece 33, the first magnetic steel 34 and the T-iron 35 are tightly matched and fixedly connected. A central hole 11 is opened in the middle of the basin frame 1, and the lower part of the main voice coil 32 passes through the central hole 11 and is inserted into the main magnetic gap, and can move up and down in the main magnetic gap. The first magnetic steel 34 is specifically a ferrite magnetic steel.

[0037] The main input drive mechanism 3 also includes a positioning support 36, which is specifically located in the cavity formed after the sound basin 2 and the basin frame 1 are connected. A through hole is provided in the middle of the positioning support 36, and the main voice coil 32 can be movably arranged in the positioning support 36 in the up-down direction, and the outer surface of the main voice coil 32 and the positioning support 36 are closely matched to prevent the positioning support 36 from shaking, so that the main voice coil 32 is limited to only be able to move in the up-down direction, and horizontal displacement is not allowed. Further, the basin frame 1 has a flange 13 surrounding the center hole 11, and the flange 13 surrounds the center hole 11 in a circle, and is a closed circular ring. The positioning support 36 and the flange 13 cooperate with each other so that the positioning support 36 is stuck between the inner walls of the flange 13.

[0038] Each auxiliary input drive mechanism 4 includes a secondary voice coil 42 and a secondary magnetic circuit assembly with a secondary magnetic gap. A plurality of secondary voice coil mounting holes 212 are correspondingly provided on the sound basin 2, and the main voice coil mounting hole 211 is located between the plurality of secondary voice coil mounting holes 212. Specifically, four secondary voice coil mounting holes 212 are arranged at equal intervals along the circumference around the center line of the main voice coil mounting hole 211. The upper end of each secondary voice coil 42 is connected to the corresponding secondary voice coil mounting hole 212, and the upper ends of the four secondary voice coils 42 are connected to the sound basin 2 to drive the sound basin 2. Four secondary magnetic circuit mounting holes 12 are correspondingly provided on the basin frame 1, and the center hole 11 is located between the four secondary magnetic circuit mounting holes 12, and the four secondary magnetic circuit mounting holes 12 are arranged at equal intervals along the circumference around the center line of the center hole 11. The lower part of each secondary voice coil 42 is inserted into the corresponding secondary magnetic gap through the corresponding secondary magnetic circuit mounting hole 12, and can move in the secondary magnetic gap. The auxiliary magnetic circuit assembly specifically includes a U-iron 46 with an inner cavity, a second magnetic steel arranged in the U-iron 46, and a magnetic pole core 44. The second magnetic steel specifically includes an auxiliary neodymium magnet 43 and a main neodymium magnet 45. The auxiliary neodymium magnet 43, the magnetic pole core 44 and the main neodymium magnet 45 are tightly stacked from top to bottom, and there is a gap between the outer surfaces of the three and the inner surface of the U-iron 46, and the gap is the auxiliary magnetic gap. The upper edge of the U-iron 46 is fixedly connected to the auxiliary magnetic circuit mounting hole 12 of the basin frame 1. The auxiliary magnetic circuit assembly in this embodiment adopts the above-mentioned auxiliary neodymium magnet 43 and the main neodymium magnet 45, which has the advantages of small size and light weight. The auxiliary input drive mechanism 4 is an input drive mechanism without a positioning support plate 36, so it is small in size and light in weight.

[0039] In this embodiment, the cone 2 is driven to vibrate by a combination of a main input drive mechanism 3 and four auxiliary input drive mechanisms 4, thereby increasing the driving energy of the speaker; while increasing the driving energy of the speaker, the overall structure is made more compact to avoid excessive volume. Moreover, the front piece 33 of the main input drive mechanism 3 is fixedly mounted on the cone frame 1, and the U iron 46 of the auxiliary input drive mechanism 4 is fixedly mounted on the cone frame 1, thereby improving the combination accuracy.

[0040] Reference Figure 4 As shown, each auxiliary input drive mechanism 4 also includes an elastic dust ring 47, which is sleeved on the voice coil, and the upper end of the dust ring 47 is sealed with the sound basin 2, and the lower end of the dust ring 47 is sealed with the basin frame 1. The material of the dust ring 47 is cloth, plastic sheet or rubber. In this embodiment, the dust ring 47 is a corrugated hose. A pair of lead holes 470 for the lead wires of the auxiliary voice coil 42 to pass through are opened on the dust ring 47. The dust ring 47 makes the auxiliary magnetic circuit assembly generally in a sealed environment, effectively preventing dust and the like from entering the auxiliary magnetic circuit assembly.

[0041] In this embodiment, the sound basin 2 has a flat sound basin bottom 21 that is circular as a whole, the center of each of the above-mentioned circles coincides or is colinear with the center of the sound basin bottom 21, and the main voice coil mounting hole 211 is concentrically arranged with the sound basin bottom 21. The sound basin bottom 21 is fixedly connected to the basin frame 1 through a circle of yoke rings 22. In some other embodiments, the sound basin 2 also has a conical edge portion extending upward from the outer edge of the sound basin bottom 21, and the conical edge portion is fixedly connected to the basin frame 1 through the yoke ring 22; further, the sound basin 2 is provided with a plurality of reinforcing ribs, which extend from the sound basin bottom 21 to the conical edge portion, thereby enhancing the strength between the flat sound basin bottom 21 and the conical edge portion. The sound basin 2 with the above-mentioned shape is superior to the traditional cone speaker in terms of the directional expansion width, and is lower in height than the traditional conical sound basin 2, which is conducive to reducing the total height of the speaker. In this embodiment, the basin frame 1 is made of plastic using injection molding and other processes, which is easy to form and has a certain strength. The bottom 21 of the sound basin and the conical edge are made of pulp, plastic (such as PP (polypropylene)), bulletproof fiber or aluminum alloy. The sound basin 2 is light in weight, has good damping elasticity and rigidity, is resistant to high and low temperatures, and is waterproof and mildew-proof. The yoke ring 22 is made of sponge, rubber, and cloth.

[0042] In this embodiment, multiple auxiliary input drive mechanisms 4 are arranged along the circumference, and the voice coil is circular as a whole. In other embodiments, the voice coil and the magnetic circuit drive structure are arranged linearly or rectangularly, the main input drive mechanism 3 is located in the middle, and multiple auxiliary input drive mechanisms 4 are arranged around the main input drive mechanism 3, or are arranged on both sides of the main input drive mechanism 3, and the shape of the sound basin is elliptical or rectangular.

[0043] The main input drive mechanism 3 includes a dust cover 31, and the main voice coil mounting hole 211 is covered with the dust cover 31. Each auxiliary input drive mechanism 4 also includes a dust cover 41, and each auxiliary voice coil mounting hole 212 is covered with a dust cover 41. The dust covers 31 and 41 are fixedly connected to the sound cone 2.

[0044] There are five pairs of audio signal input terminals 5 at the edge of the basin frame 1, and the unpaired audio signal input terminals 5 are arranged at intervals along the circumferential direction of the basin frame 1, and the basin frame 1 is provided with a slot for connecting external cables. A pair of leads of the main voice coil 32 is electrically connected to a pair, and a pair of leads of each sub-voice coil 42 is electrically connected to a corresponding pair of audio signal input terminals 5. Among them, each pair of audio signal input terminals 5 includes a positive terminal and a negative terminal, one of the pair of leads is electrically connected to the positive terminal, and the other is electrically connected to the negative terminal to receive the audio signal (analog signal or digital signal) input by the pair of audio signal input terminals 5. Thus, one main voice coil 32 and four sub-voice coils 42 are driven simultaneously through five pairs of audio signal input terminals 5. By providing multiple pairs of audio signal input integrated terminals on the basin frame 1, it is not only convenient to manufacture multi-channel input drive speakers, but also convenient to connect audio signal inputs.

[0045] The loudspeaker provided in this embodiment has a clever and reasonable structure by surrounding a plurality of auxiliary input drive mechanisms 4 around a main input drive mechanism 3. By adopting a structural combination of a main input drive mechanism 3 with a positioning support 36 and a plurality of auxiliary input drive mechanisms 4 without positioning supports 36, the size of the magnetic circuit structure can be reduced; multi-channel audio signal input drive is achieved by a main input drive mechanism 3 and a plurality of auxiliary input drive mechanisms 4; a sound cone 2 structure with a flat plate in the middle is adopted, and the directivity width is better than that of a traditional loudspeaker; audio signal input is received respectively by a main input drive mechanism 3 and a plurality of auxiliary input drive mechanisms 4, and the original sound playback and distortion are better than those of a traditional loudspeaker; by adopting a flat bottom sound cone 2 shape, the height of the sound cone 2 is lower than that of a traditional conical sound cone 2, and the height of the sound cone 2 is reduced, thereby reducing the height of the product; and by adopting a driving structure composed of a main input drive mechanism 3 and a plurality of auxiliary input drive mechanisms 4, the sensitivity of the loudspeaker is increased.

[0046] The above embodiment is only for illustrating the technical concept and features of the present invention, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: It includes a basin frame, a sound basin arranged on the basin frame and an auxiliary input drive mechanism, the auxiliary input drive mechanism includes a secondary voice coil and a secondary magnetic circuit component forming a secondary magnetic gap, the sound basin is correspondingly provided with a secondary voice coil mounting hole, the upper end of the secondary voice coil is connected to the secondary voice coil mounting hole, the basin frame is correspondingly provided with a secondary magnetic circuit mounting hole, the lower part of the secondary voice coil is inserted into the corresponding secondary magnetic gap through the secondary magnetic circuit mounting hole; the auxiliary input drive mechanism also includes an elastic dust ring, the dust ring is sleeved on the secondary voice coil, the upper end of the dust ring is connected to the sound basin, and the lower end of the dust ring is connected to the basin frame.

2. The loudspeaker according to claim 1, characterized in that The dustproof ring is provided with a lead hole for the lead wire of the auxiliary voice coil to pass through.

3. The loudspeaker according to claim 1, characterized in that The dustproof ring is a corrugated hose.

4. The loudspeaker according to any one of claims 1 to 3, characterized in that: The material of the dustproof ring is cloth, plastic sheet or rubber.

5. The loudspeaker according to claim 1, characterized in that The number of the auxiliary input drive mechanisms is three or more, and the speaker further includes a main input drive mechanism, and the three or more auxiliary input drive mechanisms are arranged at equal intervals along a circle around the main input drive mechanism.

6. The loudspeaker according to claim 5, characterized in that The main input drive mechanism includes a main voice coil, a T-iron, a front piece sleeved on the T-iron and a first magnet; a main voice coil mounting hole is provided in the middle of the sound basin; an upper end of the main voice coil is connected to the main voice coil mounting hole; a main magnetic gap for inserting the main voice coil is formed between the T-iron, the front piece and the first magnet; a center hole is provided in the middle of the basin frame for allowing the lower part of the main voice coil to be inserted into the main magnetic gap; the main voice coil mounting hole is located between the plurality of secondary voice coil mounting holes, and the center hole is located between the plurality of secondary magnetic circuit mounting holes.

7. The loudspeaker according to claim 6, characterized in that The sound basin has a flat sound basin bottom, and the main voice coil mounting hole and the secondary voice coil mounting hole are opened in the sound basin bottom; the sound basin has a flat sound basin bottom that is generally circular, the center of the circle coincides with the center of the sound basin bottom, and the main voice coil mounting hole and the sound basin bottom are concentrically arranged.

8. The loudspeaker according to claim 7, characterized in that The sound basin also has a conical edge portion extending obliquely upward from the outer edge of the bottom of the sound basin, and the conical edge portion is fixedly connected to the basin frame through a yoke ring.

9. The loudspeaker according to claim 1, characterized in that The auxiliary magnetic circuit component includes a U-iron with an inner cavity, a second magnetic steel and a magnetic pole core arranged in the U-iron, the auxiliary magnetic gap is formed between the second magnetic steel and the magnetic pole core and the inner wall of the U-iron, the auxiliary voice coil is inserted in the auxiliary magnetic gap so as to be movably arranged up and down, and the upper edge of the U-iron is fixedly connected to the auxiliary magnetic circuit mounting hole of the basin frame; the second magnetic steel includes a main neodymium magnet and a secondary neodymium magnet, and the secondary neodymium magnet, the magnetic pole core and the main neodymium magnet are stacked up and down.

10. The loudspeaker according to claim 1, characterized in that The auxiliary input drive mechanisms also include dust covers, and the auxiliary voice coil mounting holes are covered with one of the dust covers.

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