Loudspeaker unit, loudspeaker unit assembly method, and loudspeaker cabinet

Abstract

The application provides a loudspeaker unit, a loudspeaker unit assembling method and a loudspeaker box. The loudspeaker unit comprises: a vibration system, which comprises a diaphragm and a voice coil for driving the diaphragm to vibrate and sound; a basket, which is fixed to the diaphragm; a magnetic circuit system, which comprises a yoke, a first magnet part and a second magnet part, the yoke is fixed to one side of the basket away from the diaphragm, the first magnet part and the second magnet part are respectively fixed to one side of the yoke facing the basket, the second magnet part surrounds the first magnet part and is arranged to be spaced from the first magnet part to form a magnetic gap, and the voice coil is inserted into the magnetic gap; and a first elastic conductive part, which comprises a first fixed part and a second fixed part arranged oppositely and an elastic connecting part for elastically connecting the first fixed part and the second fixed part, the first fixed part is fixed to one side of the diaphragm connected with the basket and is electrically connected with the voice coil, and the second fixed part is fixed to one side of the basket away from the diaphragm. The application improves the production efficiency and assembly precision of the loudspeaker unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electro-acoustic conversion, in particular to a loudspeaker unit, a loudspeaker unit assembling method and a loudspeaker box. BACKGROUND

[0002] The loudspeaker unit as a core device for realizing electro-acoustic conversion is widely used in various products such as smart phones, tablet computers, smart wearable devices, etc., and its performance directly affects the audio output quality of the terminal device. The loudspeaker unit usually includes a vibration system, a magnetic circuit system, a basket and a conductive structure for realizing electrical connection. During the assembly of the loudspeaker unit, the conductive structure and the magnetic circuit system will interfere with each other, which not only has a large assembly difficulty, but also has a complicated assembly process, seriously affecting the production efficiency and product quality. SUMMARY

[0003] The purpose of the present application is to provide a loudspeaker unit, a loudspeaker unit assembling method and a loudspeaker box, which improve the technical problems of large assembly difficulty and complicated assembly process in the prior art.

[0004] The technical solutions of the present application are as follows:

[0005] In a first aspect, the present application provides a loudspeaker unit, comprising:

[0006] a vibration system including a diaphragm and a voice coil for driving the diaphragm to vibrate and sound;

[0007] a basket fixed to one side of the diaphragm in a first direction, the first direction being the vibration direction of the diaphragm;

[0008] a magnetic circuit system including a yoke, a first magnet portion and a second magnet portion, the yoke being fixed to one side of the basket away from the diaphragm, the first magnet portion and the second magnet portion being respectively fixed to one side of the yoke facing the basket, the second magnet portion being arranged around the outside of the first magnet portion and spaced apart from the first magnet portion to form a magnetic gap, and the voice coil being inserted into the magnetic gap; and

[0009] a first elastic conductive member including a first fixed portion and a second fixed portion arranged opposite to each other in the first direction, and an elastic connecting portion elastically connecting the first fixed portion and the second fixed portion, the first fixed portion being fixed to one side of the diaphragm connected to the basket and being electrically connected to the voice coil, the second fixed portion being fixed to one side of the basket away from the diaphragm, one side of the second fixed portion close to the central axis of the loudspeaker unit being the inner side of the second fixed portion, and the elastic connecting portion being bent and extended from the inner side of the second fixed portion to be connected to the first fixed portion.

[0010] Preferably, the loudspeaker unit comprises two first elastic conductive members, and the two first elastic conductive members are symmetrically arranged about a central axis of the loudspeaker unit.

[0011] Preferably, the first fixing part comprises a first fixing arm, a second fixing arm, and a connecting arm connected between the first fixing arm and the second fixing arm, the elastic connecting part is connected to the connecting arm, the first fixing arm and the second fixing arm are symmetrically arranged on both sides of the elastic connecting part and respectively have a gap with the elastic connecting part, and the first fixing arm and the second fixing arm are respectively fixed with the diaphragm.

[0012] Preferably, the side of the connecting arm close to the central axis of the loudspeaker unit is the inner side of the connecting arm.

[0013] The first fixing arm, the second fixing arm and the elastic connecting part are arranged on the inner side of the connecting arm.

[0014] Preferably, the first fixing part has a first surface and a second surface arranged in the first direction in a direction away from the diaphragm, the first surface of the first fixing part is fixed to the diaphragm, and the distance between the first surface and the second surface is the thickness of the first fixing part.

[0015] The second fixing part has a third surface and a fourth surface arranged in the first direction in a direction away from the diaphragm, the third surface of the second fixing part is fixed to the spider, and the distance between the third surface and the fourth surface is the thickness of the second fixing part.

[0016] The elastic connecting part comprises a fifth surface and a sixth surface arranged oppositely, the fifth surface is connected to the first surface at one end in the first direction, the fifth surface is connected to the fourth surface at the other end in the first direction, and the distance between the fifth surface and the sixth surface is the thickness of the elastic connecting part.

[0017] Preferably, the thickness of the elastic connecting part is less than the thickness of the first fixing part, and / or the thickness of the elastic connecting part is less than the thickness of the second fixing part, and / or the thickness of the first fixing part is less than the thickness of the second fixing part.

[0018] Preferably, a first sunken platform surface is formed on the second surface, the first sunken platform surface is recessed inwardly relative to the second surface, the voice coil comprises a lead wire welded on the first sunken platform surface; and / or a second sunken platform surface is formed on the fourth surface, the second sunken platform surface is recessed inwardly relative to the fourth surface, and the second sunken platform surface is used for welding with an external circuit board.

[0019] Preferably, the elastic connecting part comprises a first transition section, a first inclined section, a vertical section, a second inclined section and a second transition section connected in sequence, the vertical section extends along the first direction, the first transition section extends from the first fixed part in a direction away from the first fixed part, the second transition section extends from the inner side of the second fixed part in a direction away from the second fixed part, the first inclined section and the second inclined section respectively extend from the first transition section and the second transition section in a direction opposite to each other to be connected to both ends of the vertical section in the first direction.

[0020] Preferably, the first fixed part comprises an inner side arranged close to the central axis of the speaker unit, the first transition section extends from the inner side of the first fixed part in a direction away from the first fixed part.

[0021] Preferably, the first transition section and the second transition section extend in the same direction.

[0022] Preferably, the first fixed part comprises an inner side arranged close to the central axis of the speaker unit, an outer side arranged opposite to the inner side and a first side connected between the inner side and the outer side of the first fixed part, the first transition section extends from the first side of the first fixed part in a direction away from the first fixed part.

[0023] Preferably, the first transition section comprises a first arm body and a second arm body bent in the same plane, one end of the first arm body away from the second arm body is connected to the first side of the first fixed part, one end of the second arm body away from the first arm body is connected to the first inclined section, the second arm body and the second transition section extend in the same direction, the projection of the first inclined section in the first direction and the projection of the second inclined section in the first direction intersect;

[0024] Alternatively, the second transition section comprises a third arm body and a fourth arm body bent in the same plane, one end of the third arm body away from the fourth arm body is connected to the inner side of the second fixed part, one end of the fourth arm body away from the third arm body is connected to the second inclined section, the fourth arm body and the first transition section extend in the same direction.

[0025] Preferably, the frame comprises a ring-shaped frame body part and a support part, the frame body part is fixed to the diaphragm and arranged around the first direction, the support part is formed on the side of the frame body part away from the diaphragm.

[0026] The second fixed part is fixed to the side of the support part away from the frame body part.

[0027] Preferably, the support portion includes a first support body extending from the yoke body portion in a direction away from the diaphragm, and a second support body bent from one end of the first support body away from the yoke body portion to extend into the interior of the speaker unit, the second support body having an end away from the diaphragm fixed to the second fixing portion.

[0028] Preferably, the second magnet portion has a first slot structure extending through the second magnet portion in the first direction;

[0029] The magnetic yoke has a second slot structure extending through the magnetic yoke in the first direction, the second slot structure and the first slot structure being correspondingly arranged in the first direction to jointly define a giving slot;

[0030] The second fixing portion is accommodated in the giving slot, the elastic connecting portion is partially accommodated in the giving slot and partially exposed outside the giving slot, and the first fixing portion is exposed outside the giving slot.

[0031] Preferably, a projection of the first fixing portion in the first direction is at least partially located outside a projection of the giving slot in the first direction.

[0032] Preferably, the giving slot is divided into a first region and a second region arranged in sequence in a direction away from the giving slot opening, the second fixing portion is accommodated in the first region, and the elastic connecting portion is partially accommodated in the first region and partially accommodated in the second region.

[0033] Preferably, a width of the first region is greater than a width of the second fixing portion, a width of the second region is greater than a width of the elastic connecting portion, and the width of the second region is less than the width of the second fixing portion, and the width of the second fixing portion is greater than the width of the elastic connecting portion.

[0034] Preferably, the second slot structure is divided into a first slot segment and a second slot segment in the first direction, and the second slot segment is located on a side of the first slot segment away from the second magnet portion in the first direction.

[0035] A projection of the first slot structure in the first direction is located within a projection of the first slot segment in the first direction, and a projection of the second fixing portion in the first direction is partially located within a projection of the second slot segment in the first direction and partially located outside the projection of the second slot segment in the first direction.

[0036] Preferably, a boundary surface of the first slot segment and the second slot segment in the first direction is a seventh surface, and the seventh surface has a gap with the second fixing portion in the first direction.

[0037] Preferably, the first elastic conductive member is arranged outside the voice coil.

[0038] Preferably, the vibration system comprises one voice coil connected to the side of the diaphragm connected to the yoke, the voice coil comprises a voice coil body part and a recessed part, the voice coil body part comprises a pair of long axis sides arranged oppositely and a pair of short axis sides arranged oppositely, at least one long axis side of the pair of long axis sides is recessed to form a recessed part in the direction close to the other long axis side, and the first elastic conductive member is arranged outside the recessed part.

[0039] Preferably, the vibration system comprises two voice coils arranged around the first direction, and the two voice coils are arranged in a spaced manner and connected to the side of the diaphragm connected to the yoke.

[0040] The magnetic circuit system comprises two first magnet parts arranged in a spaced manner, and the second magnet part is arranged in a spaced manner with each first magnet part to form the magnetic gap corresponding to the voice coil, the second magnet part is provided with a communication hole communicating the two magnetic gaps, and the communication hole penetrates the second magnet part in the first direction.

[0041] The vibration system further comprises a support arranged between the two voice coils and penetrating the communication hole, the support is arranged on the side of the voice coil away from the diaphragm, and the support is fixed with the two voice coils respectively.

[0042] Preferably, when the voice coil is not powered, the distance between the support and the diaphragm in the first direction is greater than the distance between the magnetic circuit system and the diaphragm in the first direction.

[0043] The support and the yoke have a gap in the first direction.

[0044] Preferably, the support and the hole wall of the communication hole have a gap.

[0045] Preferably, the support comprises a plate part perpendicular to the first direction, the voice coil has an eighth surface arranged in the first direction and facing the plate part, the plate part has a ninth surface arranged in the first direction and facing the voice coil, one end of the ninth surface is fixed with the eighth surface of one of the voice coils by glue, and the other end of the ninth surface is fixed with the eighth surface of the other voice coil by the glue.

[0046] Preferably, the voice coil has an outer surface arranged around the first direction, and the area close to the ninth surface of the outer surface of the voice coil is provided with the glue.

[0047] Preferably, the voice coil has an inner surface arranged around the first direction, a projection of the plate portion in the first direction is between projections of the inner surfaces of the two voice coils in the first direction, and the plate portion has a spacing from the inner surfaces of the voice coils.

[0048] Preferably, the support further comprises at least one stand portion extending from the plate portion in the first direction, the stand portion being arranged between the two voice coils.

[0049] Preferably, the stand portion extends from the plate portion towards the diaphragm; and / or, the stand portion has a spacing from the voice coils.

[0050] Preferably, the plate portion has a first side and a second side arranged symmetrically about a central axis of the loudspeaker unit, the stand portion comprises a first stand portion and a second stand portion, the first stand portion is formed on the first side of the plate portion, the second stand portion is formed on the second side of the plate portion, and the first stand portion and the second stand portion are arranged symmetrically about the central axis of the loudspeaker unit.

[0051] Preferably, the loudspeaker unit comprises two first elastic conductive members arranged symmetrically about a central axis of the loudspeaker unit.

[0052] The loudspeaker unit further comprises a second elastic conductive member, one end of the second elastic conductive member is connected to one of the first elastic conductive members, and the other end of the second elastic conductive member is connected to the other first elastic conductive member.

[0053] Preferably, one end of the second elastic conductive member is connected to a first fixed portion of one of the first elastic conductive members, and the other end of the second elastic conductive member is connected to a first fixed portion of the other first elastic conductive member.

[0054] Preferably, the first fixed portion has a first surface and a second surface arranged in sequence in the first direction away from the diaphragm, the first surface of the first fixed portion is fixed to the diaphragm, and the second surface of the first fixed portion has a third sunken surface recessed inward relative to the second surface.

[0055] The two ends of the second elastic conductive member are respectively welded to the third sunken surfaces of the two first fixed portions.

[0056] Preferably, the first fixing part comprises a first fixing arm, a second fixing arm, and a connecting arm connected between the first fixing arm and the second fixing arm, the elastic connecting part is connected to the connecting arm, the first fixing arm and the second fixing arm are symmetrically arranged on both sides of the elastic connecting part and have a gap with the elastic connecting part respectively, and the first fixing arm and the second fixing arm are fixed with the diaphragm respectively, the first fixing arms of the two first elastic conductive pieces extend towards each other and are symmetrically arranged, and the second fixing arms of the two first elastic conductive pieces extend towards each other and are symmetrically arranged.

[0057] One end of the second elastic conductive piece is connected to the first fixing arm of one of the first elastic conductive pieces, and the other end of the second elastic conductive piece is connected to the second fixing arm of the other first elastic conductive piece.

[0058] Preferably, the second elastic conductive piece is a wave-shaped structure extending in a bent manner in a plane perpendicular to the first direction.

[0059] In a second aspect, the present application provides an assembling method of a loudspeaker unit, for assembling any of the loudspeaker units described above, the assembling method comprising:

[0060] providing the diaphragm and the frame, and fixing the diaphragm and the frame;

[0061] providing the first elastic conductive piece, and fixing the first elastic conductive piece to the diaphragm and the frame;

[0062] providing the voice coil, and fixing the voice coil to the diaphragm and electrically connecting the voice coil with the first elastic conductive piece;

[0063] providing the assembled magnetic circuit system, inserting the voice coil into the magnetic gap, and fixing the yoke to the frame.

[0064] In a third aspect, the present application provides a loudspeaker box, comprising a shell having a containing space, any of the loudspeaker units described above accommodated in the containing space, and a circuit board electrically connected with the loudspeaker unit, the circuit board being connected to the second fixing part away from the frame.

[0065] Preferably, the frame comprises:

[0066] a ring-shaped frame body part fixed to the diaphragm and arranged around the first direction; and

[0067] A support portion is formed on the side of the frame body portion away from the diaphragm. The support portion includes a first support body extending from the frame body portion in a direction away from the diaphragm and a second support body extending and bent into the speaker unit from one end of the first support body away from the frame body portion. The end of the second support body away from the diaphragm is fixed to the second fixing portion.

[0068] The housing includes an upper housing opposite to the diaphragm and a lower housing that is fitted to the upper housing to form the receiving space. The lower housing is disposed opposite to the magnetic yoke. The second fixing part includes a third surface fixedly connected to the second support and a fourth surface opposite to the third surface. The magnetic yoke includes a fourteenth surface connected to the first magnet part and a fifteenth surface disposed opposite to the fourteenth surface. The fifteenth surface is disposed opposite to the lower housing. The circuit board is connected to the fourth surface. The fourteenth surface of the magnetic yoke is closer to the lower housing in a first direction than the fourth surface of the second fixing part.

[0069] Preferably, the magnetic yoke has a second groove structure that extends through the magnetic yoke along a first direction, and the circuit board includes a circuit board body portion connected to the magnetic yoke, a first connecting portion that bends and extends from the circuit board body portion toward the second fixing portion, and a second connecting portion that bends and extends from the first connecting portion toward the outside of the speaker unit. The first connecting portion and the second connecting portion are placed in the second groove structure, and the second connecting portion is connected to the fourth surface of the second fixing portion.

[0070] Preferably, the second connecting portion is connected to the fourth surface by an adhesive, and the fourteenth surface of the magnetic yoke is closer to the lower housing than the adhesive in a first direction.

[0071] The beneficial effects of the present invention are as follows: the first fixing part of the first elastic conductive member is fixed to the diaphragm and electrically connected to the voice coil, the second fixing part is fixed to the frame, the magnetic circuit system is inserted and matched with the voice coil and fixed to the frame, and the first elastic conductive member and the magnetic circuit system are not connected to each other and do not affect each other during assembly, thereby simplifying the assembly process and reducing the assembly difficulty, thereby improving production efficiency, improving the assembly accuracy, consistency and concentricity of the loudspeaker unit, and improving product quality. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the structure of a loudspeaker unit according to Embodiment 1 of the present invention.

[0073] Figure 2 for Figure 1 AA sectional view.

[0074] Figure 3 for Figure 1B-B sectional view of the enlarged view of Figure 1.

[0075] Figure 4 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0076] Figure 5 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0077] Figure 6 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0078] Figure 7 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0079] Figure 8 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0080] Figure 9 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0081] Figure 10 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application. Figure 9 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0082] Figure 11 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application. Figure 9 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0083] Figure 12 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0084] Figure 13 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0085] Figure 14 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0086] Figure 15 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0087] Figure 16 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application. Figure 15 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0088] Figure 17 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application. Figure 15 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0089] Figure 18 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0090] Figure 19 Figure 1 is an exploded view of a speaker unit according to an embodiment of the present application.

[0091] Figure 20 This is a schematic diagram of the first elastic conductive element in the speaker unit of Embodiment 4 of the present invention.

[0092] Figure 21 This is a schematic diagram of the speaker unit in Embodiment 5 of the present invention.

[0093] Figure 22 for Figure 21 EE sectional view.

[0094] Figure 23 for Figure 21 Enlarged cross-sectional view of FF.

[0095] Figure 24 This is an exploded view of the loudspeaker unit in Embodiment 5 of the present invention.

[0096] Figure 25 This is a schematic diagram of the voice coil and support structure in the speaker unit of Embodiment 5 of the present invention.

[0097] Figure 26 for Figure 25 Another perspective illustration.

[0098] Figure 27 This is a schematic diagram of the support structure in the speaker unit of Embodiment 5 of the present invention.

[0099] Figure 28 This is a schematic diagram of the speaker enclosure in Embodiment 7 of the present invention.

[0100] Figure 29 for Figure 28 The diagram shows a speaker enclosure with part of the housing removed.

[0101] Figure 30 for Figure 28 Another perspective illustration.

[0102] Figure 31 for Figure 30 GG cross-sectional view.

[0103] Figure 32 for Figure 31 A magnified view of a local I-structure.

[0104] Figure 33 for Figure 32 A magnified view of the local J-structure.

[0105] Figure 34 for Figure 30 HH sectional view.

[0106] Figure 35 for Figure 34 A magnified view of the local K-structure.

[0107] Figure 36 For Figure 35 A local L structure magnification view of.

[0108] Wherein: 100 - speaker box (10 - speaker unit (1 - vibration system (11 - diaphragm, 12 - voice coil (12a - voice coil, 12b - voice coil, 121 - voice coil body part, 122 - waist, 123 - eighth surface, 124 - twelfth surface, 125 - thirteenth surface, 126 - lead wire)), 2 - basket (21 - basket body part, 22 - support part (221 - first support body, 222 - second support body)), 3 - magnetic circuit system (31 - magnetic yoke (311 - second slot structure (3111 - first slot section, 3112 - second slot section, 3113 - seventh surface), 312 - fourteenth surface, 313 - fifteenth surface, 314 - groove), 32 - first magnet part (32a - first magnet part, 32b - first magnet part, 321 - first magnetic steel, 322 - first pole core), 33 - second magnet part (331 - first slot structure, 332 - communication hole, 333 - tenth surface, 334 - eleventh surface, 335 - second magnetic steel, 336 - second pole core), 34 - magnetic gap (34a - magnetic gap, 34b - magnetic gap), 35 - let space (351 - first area, 352 - second area)), 4 - first elastic conductive part (41 - first fixed part (41a - inner side, 41b - first side, 411 - first fixed arm, 412 - second fixed arm, 413 - connecting arm (413a - first side), 414 - first surface, 415 - second surface, 416 - first sink surface, 417 - third sink surface, 418 - fixed body, 419 - connecting body), 42 - second fixed part (42a - inner side, 42b - first side, 42c - second side, 421 - third surface, 422 - fourth surface, 423 - second sink surface), 43 - elastic connecting part (431 - fifth surface, 432 - sixth surface, 433 - first transition section (4331 - first arm body, 4332 - second arm body), 434 - first inclined section, 435 - vertical section, 436 - second inclined section, 437 - second transition section (4371 - third arm body, 4372 - fourth arm body)), 44 - reinforcing area), 5 - support (51 - plate part (511 - ninth surface, 512 - main body, 513 - first convex part, 514 - second convex part, 51a - first side, 51b - second side), 52 - vertical part (52a - first vertical part, 52b - second vertical part)), 6 - second elastic conductive part), 7 - shell (71 - containing space, 72 - upper shell, 73 - lower shell), 8 - circuit board (81 - circuit board body part (811 - surface of the circuit board opposite the lower shell), 82 - first connecting part, 83 - second connecting part)). DETAILED DESCRIPTION

[0109] The application will be further described below in connection with the drawings and embodiments.

[0110] Embodiment one

[0111] Referring to Figures 1 to 6 , the embodiment one of the application provides a loudspeaker unit 10, which comprises a vibration system 1, a basket 2, a magnetic circuit system 3 and a first elastic conductive piece 4. The vibration system 1 comprises a diaphragm 11 and a voice coil 12. The voice coil 12 is used to drive the diaphragm 11 to vibrate and emit sound. The basket 2 is fixed to one side of the diaphragm 11 in a first direction, and the first direction is the vibration direction of the diaphragm 11. The magnetic circuit system 3 comprises a yoke 31, a first magnet part 32 and a second magnet part 33. The yoke 31 is fixed to one side of the basket 2 away from the diaphragm 11 in the first direction. The first magnet part 32 and the second magnet part 33 are respectively fixed to one side of the yoke 31 facing the basket 2. The second magnet part 33 surrounds the first magnet part 32, and the second magnet part 33 is arranged to be spaced apart from the first magnet part 32 to define a magnetic gap 34. The voice coil 12 is inserted into the magnetic gap 34. The first elastic conductive piece 4 comprises a first fixed part 41, a second fixed part 42 and an elastic connecting part 43. The first fixed part 41 and the second fixed part 42 are arranged opposite to each other in the first direction. The elastic connecting part 43 is elastically connected between the first fixed part 41 and the second fixed part 42. The first fixed part 41 is fixed to one side of the diaphragm 11 connected to the basket 2 in the first direction, and the first fixed part 41 is electrically connected to the voice coil 12. The second fixed part 42 is fixed to one side of the basket 2 away from the basket 2 in the first direction. One side of the second fixed part 42 close to the central axis of the loudspeaker unit 10 is the inner side 42a of the second fixed part 42. The elastic connecting part 43 is bent and extended from the inner side 42a of the second fixed part 42 to the first fixed part 41.

[0112] In the embodiment of the application, the first fixed part 41 of the first elastic conductive piece 4 is fixed to the diaphragm 11 and electrically connected to the voice coil 12, and the second fixed part 42 is fixed to the basket 2. The magnetic circuit system 3 is inserted and matched with the voice coil 12 and is fixed to the basket 2. The first elastic conductive piece 4 and the magnetic circuit system 3 are not connected to each other and do not affect each other during assembly, thereby simplifying the assembly process and reducing the assembly difficulty, and further improving the production efficiency, the assembly precision, the consistency and the concentricity of the loudspeaker unit 10, and improving the product quality.

[0113] In some embodiments, the frame 2 comprises a frame body part 21 and a support part 22. The frame body part 21 is fixed to one side of the diaphragm 11 in the first direction, and the frame body part 21 is arranged around the first direction. The support part 22 is formed on the side of the frame body part 21 away from the diaphragm 11 in the first direction. As an example, the second fixing part 42 is fixed to the side of the support part 22 away from the frame body part 21 in the first direction.

[0114] In some embodiments, the speaker unit 10 comprises two first elastic conductive parts 4, which are arranged symmetrically about the central axis of the speaker unit 10, and the central axis of the speaker unit 10 is parallel to the first direction. The frame 2 comprises two support parts 22, which are arranged symmetrically about the central axis of the speaker unit 10. As an example, the speaker unit 10 comprises two first elastic conductive parts 4, which are arranged symmetrically in the second direction. The second direction is perpendicular to the first direction. The frame 2 comprises two support parts 22, which are arranged symmetrically on both sides of the frame body part 21 in the second direction. The second fixing part 42 of one of the first elastic conductive parts 4 is fixed to the side of one of the support parts 22 away from the frame body part 21 in the first direction, and the second fixing part 42 of the other first elastic conductive part 4 is fixed to the side of the other support part 22 away from the frame body part 21 in the first direction.

[0115] In this embodiment, the speaker unit 10 comprises two symmetrically arranged first elastic conductive parts 4, which can provide more stable support for the diaphragm 11 and further improve the reliability of the structure.

[0116] In some embodiments, the first elastic conductive part 4 is a FPC (Flexible Printed Circuit), which has good conductivity and elastic recovery effect.

[0117] In some embodiments, the first magnet part 32 and the second magnet part 33 can be permanent magnets or magnetic materials. When the voice coil 12 is energized, the voice coil 12 is subjected to the action of Ampere force in the magnetic field generated by the second magnet part 33 and the first magnet part 32, thereby generating vibration. The vibration is transmitted to the external environment through the diaphragm 11 connected to the voice coil 12, and then sound is generated.

[0118] In some embodiments, please refer to Figure 3 and Figure 6, the first fixed part 41 includes a first fixed arm 411, a second fixed arm 412 and a connecting arm 413, the connecting arm 413 is connected between the first fixed arm 411 and the second fixed arm 412, the elastic connecting part 43 is connected to the connecting arm 413, the first fixed arm 411 and the second fixed arm 412 are symmetrically arranged on both sides of the elastic connecting part 43, the first fixed arm 411 and the second fixed arm 412 respectively have a gap with the elastic connecting part 43, and the first fixed arm 411 and the second fixed arm 412 are respectively fixed to the diaphragm 11.

[0119] For example, please refer to Figure 3 and Figure 6 , the first fixed part 41 includes a first fixed arm 411, a second fixed arm 412 and a connecting arm 413, the first fixed arm 411 is fixed to one end of the connecting arm 413 in the third direction, the second fixed arm 412 is fixed to the other end of the connecting arm 413 in the third direction, and the third direction is perpendicular to the first direction and the second direction. Among them, the elastic connecting part 43 is connected to the connecting arm 413, the first fixed arm 411 and the second fixed arm 412 are symmetrically arranged on both sides of the elastic connecting part 43 in the third direction, the first fixed arm 411 has a gap with the elastic connecting part 43 in the third direction, the second fixed arm 412 has a gap with the elastic connecting part 43 in the third direction, and the first fixed arm 411 and the second fixed arm 412 are respectively fixed to the diaphragm 11.

[0120] In this embodiment, the first fixed arm 411 and the second fixed arm 412 are respectively fixed to the diaphragm 11, which can ensure the connection strength of the first fixed part 41 and the diaphragm 11, and ensure that the first elastic conductive part 4 can provide stable support for the vibration system 1. Moreover, the first fixed arm 411 and the second fixed arm 412 respectively have a gap with the elastic connecting part 43, which can effectively avoid the elastic connecting part 43 from contacting the first fixed arm 411 and the second fixed arm 412 during vibration, ensure that the elastic connecting part 43 can freely stretch and contract to adapt to the movement of the vibration system 1, reduce the adverse effects of structure friction on electrical connection performance and acoustic performance, and further improve the structural reliability and service life of the first elastic conductive part 4.

[0121] As an embodiment, please refer to Figure 6The inner side 413a of the connecting arm 413 is where the first fixed arm 411 and the second fixed arm 412 are formed, and the elastic connecting part 43 is connected to the inner side 413a of the connecting arm 413. As an example, when the speaker unit 10 includes two first elastic conductive parts 4 arranged symmetrically in the second direction, the first fixed arms 411 of the two first elastic conductive parts 4 extend towards each other and are arranged symmetrically in the second direction, and the second fixed arms 412 of the two first elastic conductive parts 4 extend towards each other and are arranged symmetrically in the second direction.

[0122] In the present embodiment, the first fixed arm 411, the second fixed arm 412, and the elastic connecting part 43 are all connected to the inner side 413a of the connecting arm 413, i.e., the inner side 41a of the first fixed part 41, which can more reasonably utilize the inner side space of the connecting arm 413 and make the overall layout more compact. At the same time, the inner side concentrated layout of the present embodiment can avoid unnecessary interference between the elastic connecting part 43 and other outer side structures.

[0123] In some embodiments, please refer to Figure 3 The first fixed part 41 includes a first surface 414 and a second surface 415 arranged oppositely, and the first surface 414 and the second surface 415 are sequentially arranged in the first direction away from the diaphragm 11. Among them, the first surface 414 of the first fixed part 41 is fixed to the diaphragm 11. The second fixed part 42 includes a third surface 421 and a fourth surface 422 arranged oppositely, and the third surface 421 and the fourth surface 422 are sequentially arranged in the first direction away from the diaphragm 11. Among them, the third surface 421 of the second fixed part 42 is fixed to the basket 2. The elastic connecting part 43 includes a fifth surface 431 and a sixth surface 432 arranged oppositely, and the fifth surface 431 is connected to the first surface 414 at one end in the first direction, and the fifth surface 431 is connected to the fourth surface 422 at the other end in the first direction. As an example, the third surface 421 of the second fixed part 42 is fixed to the support part 22.

[0124] In the present embodiment, the connection between the elastic connecting part 43 and the first fixed part 41 and the second fixed part 42 is on the side where the two fixed parts are away from each other, which can maximize the movable stroke of the elastic connecting part 43 within the limited internal space of the speaker unit 10. Moreover, the fifth surface 431 of the elastic connecting part 43 is connected to the fourth surface 422 of the second fixed part 42, that is, the elastic connecting part 43 is connected to the side of the second fixed part 42 away from the support part 22, which can effectively avoid the support part 22 and prevent interference between the elastic connecting part 43 and the support part 22 when the elastic connecting part 43 moves, thereby affecting the connection stability of the support part 22 and the second fixed part 42 and further improving the reliability of the structure.

[0125] In the present embodiment, the distance between the first surface 414 and the second surface 415 is the thickness of the first fixed portion 41, the distance between the third surface 421 and the fourth surface 422 is the thickness of the second fixed portion 42, and the distance between the fifth surface 431 and the sixth surface 432 is the thickness of the elastic connecting portion 43.

[0126] As an embodiment, please refer to Figure 3 and Figure 6 The thickness of the elastic connecting portion 43 is less than the thickness of the first fixed portion 41. The present embodiment can not only ensure the structural strength and stability of the connection between the first fixed portion 41 and the diaphragm 11, avoid loose or falling off caused by the first fixed portion 41 being too thin, but also make the elastic connecting portion 43 have more excellent elastic deformation ability, which can more flexibly stretch or bend during vibration, reduce the rigid constraint on the vibration of the diaphragm 11, and help reduce the overall weight of the first elastic conductive piece 4 and the load of the vibration system 1.

[0127] As an embodiment, please refer to Figure 3 and Figure 6 The thickness of the elastic connecting portion 43 is less than the thickness of the second fixed portion 42. The present embodiment can not only ensure the structural strength and stability of the connection between the second fixed portion 42 and the support portion 22, avoid loose or falling off caused by the second fixed portion 42 being too thin, but also make the elastic connecting portion 43 have more excellent elastic deformation ability, which can more flexibly stretch or bend during vibration, reduce the rigid constraint on the vibration of the diaphragm 11, and help reduce the overall weight of the first elastic conductive piece 4 and the load of the vibration system 1.

[0128] As an embodiment, please refer to Figure 3 and Figure 6 The thickness of the first fixed portion 41 is less than the thickness of the second fixed portion 42. In the present embodiment, the thickness of the first fixed portion 41 being less than the thickness of the second fixed portion 42 can not only meet the stable connection between the first fixed portion 41 and the diaphragm 11, but also reduce the additional load of the first fixed portion 41 on the vibration of the diaphragm 11, and avoid inhibiting the vibration sensitivity of the diaphragm 11 due to the first fixed portion 41 being too thick. While the second fixed portion 42 is a structure for connecting the first elastic conductive piece 4 and the support portion 22, the thicker thickness can enhance the structural strength and stability of the connection between the first elastic conductive piece 4 and the support portion 22, provide stable support for the elastic connecting portion 43, reduce the deformation or looseness of the second fixed portion 42 during vibration, and thus ensure the overall structural reliability and elastic support performance of the first elastic conductive piece 4.

[0129] In some examples, please refer to Figure 3 and Figure 6The thickness of the elastic connecting portion 43 is less than the thickness of the first fixed portion 41, and the thickness of the first fixed portion 41 is less than the thickness of the second fixed portion 42.

[0130] In some embodiments, referring to Figure 3 and Figure 6 The second surface 415 is formed with a first sunken surface 416 recessed inward relative to the second surface 415. The voice coil 12 includes a lead wire 126 for electrically connecting the first elastic conductive member 4, and the lead wire 126 can be welded to the first sunken surface 416.

[0131] In the present embodiment, the first sunken surface 416 provides a clearance for the welding of the lead wire 126 to the first elastic conductive member 4, so that the welding points of the lead wire 126 do not protrude from the second surface 415 to interfere with surrounding components. The recessed first sunken surface 416 also limits the flow range of the solder during welding, reduces the risk of short circuit caused by solder overflow, and makes the welding position of the lead wire 126 more stable, thereby improving the reliability of the electrical connection.

[0132] In some embodiments, the fourth surface 422 is formed with a second sunken surface 423 recessed inward relative to the fourth surface 422, and the second sunken surface 423 is used for welding to an external circuit board. As an example, the external circuit board can be a circuit board of a speaker box, and the circuit board can be a FPC (Flexible Printed Circuit).

[0133] In the present embodiment, the second sunken surface 423 provides a clearance for the welding to the external circuit board, which reduces the height of the welding points of the external circuit board and the first elastic conductive member 4, and makes the surface of the speaker unit more flat, thereby facilitating the stability during subsequent assembly and use.

[0134] In some embodiments, referring to Figure 3 and Figure 6The elastic connecting portion 43 comprises a first transition section 433, a first inclined section 434, a vertical section 435, a second inclined section 436 and a second transition section 437, which are connected in sequence. The vertical section 435 extends along the first direction, the first transition section 433 extends from the first fixed portion 41 in a direction away from the first fixed portion 41, the second transition section 437 extends from the inner side 42a of the second fixed portion 42 in a direction away from the second fixed portion 42, and the first inclined section 434 and the second inclined section 436 extend from the first transition section 433 and the second transition section 437 respectively in opposite directions to be connected to the two ends of the vertical section 435 along the first direction. As an example, the first transition section 433 extends from the first fixed portion 41 along the second direction, and the second transition section 437 extends from the second fixed portion 42 along the second direction. As an example, the first transition section 433 and the second transition section 437 extend along the same direction.

[0135] In the present embodiment, the first transition section 433 of the elastic connecting portion 43 can smoothly connect the first fixed portion 41 and the elastic connecting portion 43, reduce the stress concentration at the connection between the first fixed portion 41 and the elastic connecting portion 43, and provide stable support for the extension of the first inclined section 434. The second transition section 437 can smoothly connect the second fixed portion 42 and the elastic connecting portion 43, reduce the stress at the connection between the second fixed portion 42 and the elastic connecting portion 43, and provide stable support for the extension of the second inclined section 436. The first inclined section 434 and the second inclined section 436 extend from the first transition section 433 and the second transition section 437 respectively in opposite directions to be connected to the vertical section 435, and the first inclined section 434 and the second inclined section 436 extending in opposite directions can extend the overall length of the elastic connecting portion 43 in a limited space, increase the elastic deformation amount of the elastic connecting portion 43, and make the elastic connecting portion 43 more flexible to adapt to the displacement change of the vibration system 1 during vibration, thereby reducing the rigid constraint on the vibration of the diaphragm 11. The vertical section 435 extends along the first direction and serves as an intermediate support structure of the elastic connecting portion 43, which can enhance the torsional resistance of the elastic connecting portion 43 and ensure the stability of the deformation direction.

[0136] In some embodiments, please refer to Figure 3 and Figure 5The support portion 22 includes a first support body 221 and a second support body 222. The first support body 221 extends from the yoke body portion 21 in the first direction away from the diaphragm 11. The second support body 222 extends from an end of the first support body 221 away from the yoke body portion 21 in the second direction. The second support bodies 222 of the two support portions 22 extend towards each other. An end of the second support body 222 in the first direction away from the diaphragm 11 is fixed to the second fixing portion 42. As an example, a side surface of the second support body 222 in the first direction away from the diaphragm 11 is fixed to the third surface 421 of the second fixing portion 42.

[0137] In the present embodiment, the first support body 221 extends from the yoke body portion 21 in the first direction away from the diaphragm 11, which can provide stable support for the second support body 222. At the same time, the extension of the first support body 221 in the first direction can effectively avoid the vibration system 1 and the magnetic circuit system 3 near the yoke body portion 21, reduce the spatial interference between the support portion 22 and other components, and enhance the rationality of the structural layout. The second support body 222 extends from the end of the first support body 221 in the second direction, and the second support bodies 222 of the two support portions 22 extend towards each other. This not only makes the layout of the speaker unit 10 more compact, but also provides a symmetrical mounting basis for the second fixing portion 42 of the first elastic conductive member 4, ensuring that the two first elastic conductive members 4 are balanced in force. The extension of the second support body 222 in the second direction can also increase the contact area between the support portion 22 and the second fixing portion 42 as much as possible, improving the structural stability. In addition, the end of the second support body 222 in the first direction away from the diaphragm 11 is fixed to the second fixing portion 42, which further reserves sufficient deformation space for the elastic connecting portion 43, avoiding interference between the elastic connecting portion 43 and the support body when the elastic connecting portion 43 vibrates due to the second fixing portion 42 being too close to the fixed position.

[0138] In some embodiments, please refer to Figure 5The second magnet portion 33 has a first slot structure 331 penetrating the second magnet portion 33 in the first direction, the magnetic yoke 31 is provided with a second slot structure 311 penetrating the magnetic yoke 31 in the first direction, and the second slot structure 311 and the first slot structure 331 are correspondingly arranged in the first direction, and the second slot structure 311 and the first slot structure 331 jointly limit the giving way slot 35. The second fixed portion 42 is accommodated in the giving way slot 35, the elastic connecting portion 43 is partially accommodated in the giving way slot 35, the elastic connecting portion 43 is partially exposed outside the giving way slot 35, the first fixed portion 41 is exposed outside the giving way slot 35, and the support portion 22 extends from the basin body portion 21 to the giving way slot 35. In this embodiment, the opening direction of the giving way slot 35 is consistent with the opening direction of the first elastic conductive piece 4, both of which are in the second direction towards the outside of the speaker unit 10, so that the giving way slot 35 can better give way to the first elastic conductive piece 4, facilitating the smooth insertion of the first elastic conductive piece 4 into the giving way slot 35, which can not only reduce the difficulty of alignment during assembly and improve assembly efficiency, but also make the slot opening direction of the giving way slot 35 consistent with the deformation direction of the elastic connecting portion 43, avoiding interference between the first elastic conductive piece 4 and the slot wall when the first elastic conductive piece 4 vibrates, and ensuring that the first elastic conductive piece 4 has sufficient deformation space in the giving way slot 35. Moreover, the giving way slot 35 penetrates the magnetic yoke 31 in the first direction, facilitating the electrical connection of the first elastic conductive piece 4 and external equipment.

[0139] For example, please refer to Figure 5 The speaker unit 10 includes two first elastic conductive pieces 4, and the two first elastic conductive pieces 4 are symmetrically arranged in the second direction. The second magnet portion 33 has two first slot structures 331, and the two first slot structures 331 are symmetrically arranged on both sides of the second magnet portion 33 in the second direction, and the slot openings of the two first slot structures 331 are arranged opposite to each other in the second direction. The magnetic yoke 31 is provided with two second slot structures 311, and the two second slot structures 311 are symmetrically arranged on both sides of the magnetic yoke 31 in the second direction, and the second slot structure 311 and the corresponding first slot structure 331 are correspondingly arranged in the first direction, and the second slot structure 311 and the corresponding first slot structure 331 jointly limit the giving way slot 35. The giving way slot 35 is correspondingly arranged with the first elastic conductive piece 4.

[0140] As an embodiment, please refer to Figure 4, the projection of the first fixed part 41 in the first direction is at least partially located outside the projection of the accommodation slot 35 in the first direction, that is, the width of the first fixed part 41 in the second direction and / or the third direction is greater than the width of the accommodation slot 35 in the second direction and / or the third direction, and the first fixed part 41 cannot enter the accommodation slot 35. When the vibration system 1 is working, even if the first fixed part 41 is displaced with the diaphragm 11, the first fixed part 41 will not enter the accommodation slot 35, effectively avoiding the problems of abnormal stress on the first elastic conductive part 4, vibration obstruction and the like caused by the first fixed part 41 being stuck in the accommodation slot 35, and further improving the stability and reliability of the overall structure.

[0141] As an implementation manner, refer to Figure 4 , the accommodation slot 35 is divided into a first region 351 and a second region 352 arranged in sequence in the second direction away from the opening of the accommodation slot 35, the second fixed part 42 is accommodated in the first region 351, the elastic connecting part 43 is partially accommodated in the first region 351, and the elastic connecting part 43 is partially accommodated in the second region 352. Among them, the width of the second fixed part 42 in the third direction is greater than the width of the elastic connecting part 43 in the third direction, the width of the first region 351 in the third direction is greater than the width of the second fixed part 42 in the third direction, the width of the second region 352 in the third direction is greater than the width of the elastic connecting part 43 in the third direction, and the width of the second region 352 in the third direction is less than the width of the second fixed part 42 in the third direction.

[0142] In the embodiment, the first region 351 provides sufficient accommodation space for the second fixed part 42 to ensure the fixing stability of the second fixed part 42, and the width of the second region 352 is less than the width of the second fixed part 42, which can avoid the second fixed part 42 from accidentally entering the second region 352 due to vibration, and further ensure the connection reliability of the second fixed part 42 and the support part 22. At the same time, the width of the second region 352 is greater than the width of the elastic connecting part 43, which provides sufficient space for the deformation of the elastic connecting part 43.

[0143] As an implementation manner, refer to Figure 3 and Figure 5 , the second slot structure 311 is divided into a first slot segment 3111 and a second slot segment 3112 in the first direction, and the second slot segment 3112 is located on the side of the first slot segment 3111 away from the second magnet part 33 in the first direction. The projection of the first slot structure 331 in the first direction is located within the projection of the first slot segment 3111 in the first direction, the projection of the second fixed part 42 in the first direction is partially located within the projection of the second slot segment 3112 in the first direction, and the projection of the second fixed part 42 in the first direction is partially located outside the projection of the second slot segment 3112 in the first direction.

[0144] In the embodiment, the wider first slot section 3111 provides sufficient space for the assembly of the second fixing part 42, further avoiding interference between the magnetic circuit system 3 and the first elastic conductive part 4. The narrower second slot section 3112 can effectively limit the second fixing part 42 in the first direction, preventing the second fixing part 42 from accidentally separating from the support part 22 and moving excessively in a direction away from the support part 22 to accidentally extend out of the loudspeaker unit 10 from the second slot section 3112, thereby ensuring the positional stability of the second fixing part 42 after assembly and enhancing the reliability of the overall structure, while facilitating the electrical connection between the second fixing part 42 and the external circuit board. As an example, the second sink surface 423 is exposed outside the loudspeaker unit 10 through the second slot section 3112.

[0145] As an example, please refer to Figure 3 and Figure 5 , the interface between the first slot section 3111 and the second slot section 3112 in the first direction is the seventh surface 3113, and the seventh surface 3113 has a gap with the second fixing part 42 in the first direction. When the first elastic conductive part 4 vibrates with the diaphragm 11, the gap can provide sufficient space for the second fixing part 42, preventing the second fixing part 42 from touching the seventh surface 3113 due to vibration, thereby preventing the first elastic conductive part 4 from rubbing against the yoke 31.

[0146] In some embodiments, please refer to Figure 4 , the first elastic conductive part 4 is arranged outside the voice coil 12.

[0147] In the embodiment, the first elastic conductive part 4 is arranged outside the voice coil 12, which can further reduce the assembly difficulty. When assembling the first elastic conductive part 4 to the vibration system 1, it is not necessary to insert the first elastic conductive part 4 into the inside of the voice coil 12 for alignment and fixation, which can more intuitively observe the assembly position of the first elastic conductive part 4 and the diaphragm 11, reduce the operation obstacles caused by limited space, and further improve the assembly efficiency and assembly precision, and reduce the risk of component damage caused by improper operation.

[0148] In some embodiments, please refer to Figure 4 and Figure 5 , the vibration system 1 includes a voice coil 12 connected to the side of the diaphragm 11 in the first direction connected to the basket 2, the voice coil 12 includes a voice coil body part 121 and a recess part 122, the voice coil body part 121 is in a ring structure arranged around the first direction, the voice coil body part 121 includes a pair of long axis sides arranged opposite to each other and a pair of short axis sides arranged opposite to each other, wherein the short axis sides extend along the second direction, the long axis sides extend along the third direction, and at least one long axis side of the pair of long axis sides is recessed to form the recess part 122 in a direction close to the other long axis side.

[0149] As an example, two long-axis sides of the voice coil body 121 are recessed to form two recessed portions 122 symmetrically arranged in the second direction. The speaker unit 10 includes two first elastic conductive members 4 symmetrically arranged on both sides of the two recessed portions 122 in the second direction.

[0150] In the present embodiment, the space recessed by the recessed portion 122 of the voice coil 12 is used to accommodate the first elastic conductive member 4, so as to realize a compact layout and further avoid interference between the voice coil 12 and the first elastic conductive member 4. At the same time, the symmetrically arranged first elastic conductive members 4 can evenly share the stress of the voice coil 12, so as to avoid the voice coil 12 from being deviated or skewed due to uneven stress on one side when vibrating, and ensure the voice coil 12 to stably vibrate along the preset direction.

[0151] Embodiment Two

[0152] For reference Figures 7 to 11 The embodiment two of the present application has basically the same structure as the embodiment one, and is different from the embodiment one in that, in the embodiment two, the first transition section 433 extends from the first side 41b of the first fixed portion 41 in a direction away from the first fixed portion 41. The first fixed portion 41 includes an inner side 41a, an outer side, and the first side 41b, the outer side and the inner side 41a are oppositely arranged, and the first side 41b is connected between the inner side 41a and the outer side of the first fixed portion 41. As an example, the first side 41b is one side of the first fixed portion 41 in the third direction.

[0153] In some embodiments, for reference Figures 9 to 10 The first transition section 433 includes a first arm body 4331 and a second arm body 4332, one end of the first arm body 4331 away from the second arm body 4332 is connected to the first side 41b of the first fixed portion 41, the second arm body 4332 extends from the first arm body 4331 in the same plane, one end of the second arm body 4332 away from the first arm body 4331 is connected to the first inclined section 434, the second arm body 4332 and the second transition section 437 extend in the same direction, and the projection of the first inclined section 434 in the first direction and the projection of the second inclined section 436 in the first direction intersect. As an example, the second arm body 4332 and the second transition section 437 extend in the second direction.

[0154] In the embodiment, the first arm body 4331 and the second arm body 4332 of the same plane bending can extend the effective length of the first transition section 433, disperse the stress at the connection between the first fixing portion 41 and the elastic connecting portion 43, and avoid structural fatigue or damage caused by local stress concentration in the vibration process. The same extension of the second arm body 4332 and the second transition section 437 can ensure the symmetry of the overall stress of the elastic connecting portion 43. In addition, the projection intersection of the first inclined section 434 and the second inclined section 436 can further increase the elastic deformation path and deformation amount of the elastic connecting portion 43, so that the elastic connecting portion 43 can more flexibly adapt to the displacement change when the diaphragm 11 vibrates, reduce the rigid constraint on the vibration of the diaphragm 11, and improve the stability of the vibration system.

[0155] As an embodiment, refer to Figures 9 to 11 The second fixing portion 42 has a first side 42b arranged in the same direction as the first side 41b of the first fixing portion 41 and a second side 42c arranged opposite to the first side 42b. The second transition section 437 is connected to the inner side 42a of the second fixing portion 42 and arranged close to the second side 42c of the second fixing portion 42. The projection of the second arm body 4332 in the first direction is arranged close to the first side 42b of the second fixing portion 42 relative to the second side 42c of the second fixing portion 42.

[0156] In the embodiment, the projection of the second arm body 4332 is closer to the first side 42b of the second fixing portion 42 relative to the second side 42c of the second fixing portion 42, and forms a staggered layout in the projection with the second transition section 437 arranged close to the second side 42c of the second fixing portion 42. This can effectively avoid the excessive overlap of the second arm body 4332 of the elastic connecting portion 43 and the second transition section 437 in space, reduce the occupation of the limited space inside the loudspeaker unit 10, reduce the risk of structural interference, and realize a more compact overall layout. Moreover, the staggered layout of the projections of the second arm body 4332 and the second transition section 437 can optimize the force transmission path of the elastic connecting portion 43, make the stress distribution between the second arm body 4332 and the second transition section 437 more uniform, avoid local stress concentration caused by the projection overlap of the two, and reserve more flexible deformation space for the bending and stretching of the elastic connecting portion 43 in the vibration process, so as to ensure that the elastic connecting portion 43 can smoothly deform without jamming when the diaphragm 11 vibrates.

[0157] As an example, refer to Figures 9 to 11The first elastic conductive member 4 further comprises a reinforcing region 44 connected to the connection between the first arm body 4331 and the first fixed part 41. When the diaphragm 11 drives the first fixed part 41 to vibrate, the connection between the first arm body 4331 and the first fixed part 41 is prone to fatigue stress due to repeated bending and stretching. The reinforcing region 44 can improve the fatigue resistance of the connection between the first arm body 4331 and the first fixed part 41, avoid problems such as breakage of the connection between the first arm body 4331 and the first fixed part 41 after long-term use, and prolong the service life of the first elastic conductive member 4. At the same time, the reinforcing region 44 can stabilize the initial connection posture of the first arm body 4331, ensure that it always maintains the preset extension direction during assembly and vibration, avoid accidental interference with surrounding components due to the deviation of the first arm body 4331, and ensure the smoothness of the deformation of the elastic connection part 43.

[0158] In some embodiments, please refer to Figures 7 to 11 The loudspeaker unit 10 comprises two first elastic conductive members 4, which are arranged in axial symmetry about the central axis of the loudspeaker unit 10.

[0159] Embodiment three

[0160] Please refer to Figures 12 to 14 The embodiment three of the present application has basically the same structure as the embodiment one, and is different from the embodiment one in that in the embodiment three, the first transition section 433 extends from the first side 41b of the first fixed part 41 in a direction away from the first fixed part 41. The second transition section 437 comprises a third arm body 4371 and a fourth arm body 4372. The third arm body 4371 is connected to the inner side 42a of the second fixed part 42 at an end away from the fourth arm body 4372. The fourth arm body 4372 is bent from the third arm body 4371 in the same plane, and is connected to the second inclined section 436 at an end away from the third arm body 4371. The fourth arm body 4372 and the first transition section 433 extend in the same direction.

[0161] In the present embodiment, the multi-section bending structure can disperse the stress at the connection between the elastic connection part 43 and the second fixed part 42. The bending transition of the third arm body 4371 and the fourth arm body 4372 can buffer the impact force during vibration. The extension of the fourth arm body 4372 and the first transition section 433 in the same direction makes the force transmission path of the elastic connection part 43 more smooth, avoids structural fatigue or breakage caused by local stress concentration, enhances the fatigue resistance, and provides more sufficient stretching and bending space for the elastic connection part 43, so that the elastic connection part 43 can deform more flexibly with the vibration of the diaphragm 11, reduces the rigid constraint, and improves the smoothness of the vibration response.

[0162] As an embodiment, please refer to Figure 14The first fixed part 41 comprises a fixed body 418 and a connecting body 419 extending straight from a partial edge of the fixed body 418, the fixed body 418 is fixed to the diaphragm 11, and the first transition section 433 extends from the connecting body 419 in a direction away from the first fixed part 41.

[0163] In the embodiment, the width of the connecting body 419 is narrower than the width of the fixed body 418, which can ensure the overall stability of the first fixed part 41, and transition to the first transition section 433 through the connecting body 419, so as to reduce the material redundancy between the first transition section 433 and the fixed body 418, avoid the problem of excessive structural rigidity and insufficient flexibility caused by the excessive width of the connecting part, and enable the first transition section 433 to more flexibly realize the preset deformation or displacement function when stressed. At the same time, the connecting body 419 can also reduce the risk of stress concentration, make the force transmitted from the fixed body 418 to the transition section more uniform, and improve the durability and stability of the overall structure.

[0164] In some embodiments, please refer to Figures 12 to 14 The loudspeaker unit 10 comprises two first elastic conductive members 4, which are arranged in axial symmetry about the central axis of the loudspeaker unit 10.

[0165] Embodiment Four

[0166] Please refer to Figures 15 to 20 The embodiment four of the present application is basically the same as the structure of the embodiment one, and the difference between the embodiment four and the embodiment one is that, in the embodiment four, the vibration system 1 comprises two voice coils 12, the two voice coils 12 are arranged in the third direction, and the two voice coils 12 are respectively connected to the side of the diaphragm 11 connected to the frame 2 in the first direction, and each voice coil 12 is arranged around the first direction. The number of the first magnet parts 32 is the same as the number of the voice coils 12, the magnetic circuit system 3 comprises two first magnet parts 32, and the first magnet parts 32 are arranged in one-to-one correspondence with the voice coils 12. The two first magnet parts 32 are arranged in the third direction, and the second magnet part 33 is arranged in the third direction to form a magnetic gap 34 corresponding to the voice coil 12. The second magnet part 33 is provided with a communication hole 332, the communication hole 332 communicates the two magnetic gaps 34 in the third direction, and the communication hole 332 penetrates the second magnet part 33 in the first direction. The vibration system 1 further comprises a support 5. The support 5 is arranged on the side of the voice coil 12 away from the diaphragm 11 in the first direction, the support 5 is partially accommodated in the communication hole 332, one end of the support 5 in the third direction extends into one of the magnetic gaps 34 and is fixed to the voice coil 12 in the magnetic gap 34, and the other end of the support 5 in the third direction extends into the other magnetic gap 34 and is fixed to the voice coil 12 in the magnetic gap 34.

[0167] In the embodiment, the two voice coils 12 are connected to the diaphragm 11 on one side in the first direction, and connected through the support 5 on the other side in the first direction, so that the voice coils 12 are connected on both sides in the first direction, and all the voice coils 12 can be restrained to each other, the vibration consistency and balance of the voice coils 12 can be improved, and the acoustic performance of the loudspeaker unit 10 can be improved, and the service life of the loudspeaker unit 10 can be prolonged. The communication hole 332 of the second magnet portion 33 communicates the two magnetic gaps 34 in the third direction and penetrates the second magnet portion 33 in the first direction, which provides a suitable accommodation space for the support 5, so that the support 5 can be partially accommodated in the communication hole 332, and the structural interference between the support 5 and the second magnet portion 33 is avoided, so that the compact layout of the support 5 and the magnetic circuit system 3 in the limited internal space of the loudspeaker unit 10 is realized; and the support 5 can be extended into the two magnetic gaps 34 at both ends in the third direction through the communication effect of the communication hole 332, so that the stable connection between the support 5 and the corresponding voice coil 12 is ensured, and the voice coil 12 is restrained through the support 5. At the same time, since the support 5 is partially accommodated in the communication hole 332, the groove wall of the communication hole 332 can also limit the support 5, so that the stability of the support 5 in the vibration process is enhanced, the vibration consistency of the voice coil 12 is not affected by the shaking of the support 5, and the acoustic performance of the loudspeaker unit 10 is further ensured.

[0168] By way of example, reference is made to Figure 16 , Figure 18 and Figure 19 , the vibration system 1 includes a voice coil 12a and a voice coil 12b. Correspondingly, the magnetic circuit system 3 includes a first magnet portion 32a and a first magnet portion 32b which are arranged in the third direction. The first magnet portion 32a is arranged corresponding to the voice coil 12a, and the first magnet portion 32b is arranged corresponding to the voice coil 12b. The second magnet portion 33 is arranged in the first direction to form a magnetic gap 34a with the first magnet portion 32a, and the voice coil 12a is inserted into the magnetic gap 34a. The second magnet portion 33 is arranged in the first direction to form a magnetic gap 34b with the first magnet portion 32b, and the voice coil 12b is inserted into the magnetic gap 34b. The second magnet portion 33 is provided with a communication hole 332 which communicates the magnetic gap 34a and the magnetic gap 34b in the third direction. The support 5 extends into the magnetic gap 34a at one end in the third direction and is fixed with the voice coil 12a, and the support 5 extends into the magnetic gap 34b at the other end in the third direction and is fixed with the voice coil 12b. The first elastic conductive member 4 is arranged between the voice coil 12a and the voice coil 12b.

[0169] By way of example, reference is made to Figure 16 and Figure 17When the voice coil 12 is not powered, the distance between the support 5 and the diaphragm 11 in the first direction is greater than the distance between the magnetic circuit system 3 and the diaphragm 11 in the first direction. The support 5 and the yoke 31 have a gap in the first direction. The present embodiment can ensure that the support 5 is limited by the through hole 332 while reserving sufficient movement space for the support 5 to vibrate with the voice coil 12. The distance between the support 5 and the diaphragm 11 is greater than the distance between the magnetic circuit system 3 and the diaphragm 11, which can prevent the support 5 from accidentally contacting the diaphragm 11 when the voice coil 12 vibrates, and prevent the support 5 from interfering with the normal vibration stroke of the diaphragm 11. The stand part 52 and the yoke 31 have a gap, which can prevent the stand part 52 from colliding with the yoke 31 when the voice coil 12 vibrates away from the diaphragm 11, and ensure that the voice coil 12 has sufficient vibration space.

[0170] In some embodiments, please refer to Figure 16 , Figure 17 and Figure 19 , the support 5 includes a plate part 51, and the plate part 51 is perpendicular to the first direction. The voice coil 12 includes an eighth surface 123, and the eighth surface 123 of the voice coil 12 is arranged to face the plate part 51 in the first direction. The plate part 51 includes a ninth surface 511, and the ninth surface 511 of the plate part 51 is arranged to face the voice coil 12 in the first direction. The ninth surface 511 of the plate part 51 is fixed to the eighth surface 123 of one of the voice coils 12 at one end of the third direction, and the ninth surface 511 is fixed to the eighth surface 123 of the other voice coil 12 at the other end of the third direction.

[0171] In the present embodiment, the eighth surface 123 of the voice coil 12 and the ninth surface 511 of the plate part 51 are arranged to face each other in the first direction, and are directly fixed. That is, the contact relationship between the voice coil 12 and the plate part 51 is surface contact, which ensures the contact area between the voice coil 12 and the support 5, and makes the connection more stable and reliable. Moreover, the face-to-face fixing method can ensure that the transmission path of the force in the first direction is shorter and more direct, reduce the loss in the process of force transmission, and enable the two voice coils 12 to interact more efficiently through the plate part 51, so that they can better restrain each other when vibrating, effectively suppress the relative movement caused by the imbalance of the voice coil 12, and further ensure the consistency of the coordinated vibration of the multiple voice coils 12.

[0172] As an example, please refer to Figure 16 , the support 5 is arranged between the voice coil 12a and the voice coil 12b. The ninth surface 511 of the plate part 51 is fixed to the eighth surface 123 of the voice coil 12a at one end of the third direction, and the ninth surface 511 of the plate part 51 is fixed to the eighth surface 123 of the voice coil 12b at the other end of the third direction.

[0173] As an embodiment, the eighth surface 123 and the ninth surface 511 are fixed by adhesive.

[0174] In the embodiment, the voice coil 12 and the support 5 are fixed by means of glue bonding, which not only has a simple process, but also has low cost. In addition, the eighth surface 123 of the voice coil 12 and the ninth surface 511 of the plate portion 51 are fixed by glue bonding, and the adhesive property of the glue enables the two surfaces to achieve close and firm surface contact connection, effectively preventing loosening or separation during vibration. In addition, the cured glue has a certain toughness, which can buffer the impact force generated by the vibration of the voice coil 12 during force transmission, reduce stress concentration caused by rigid connection, ensure that the voice coil 12 efficiently transmits mutual restraint force through the plate portion 51 to suppress relative movement caused by imbalance, and further reduce the risk of damage to the voice coil 12 or the support 5 due to vibration impact, thereby further ensuring the consistency and balance of the coordinated vibration of the multiple voice coils 12.

[0175] As an embodiment, please refer to Figure 16 , the voice coil 12 includes an outer surface, the outer surface of the voice coil 12 is arranged around the first direction, and the region of the outer surface of the voice coil 12 close to the ninth surface 511 of the plate portion 51 is provided with glue. As an example, the voice coil 12 has a rectangular ring structure, the outer surface of the voice coil 12 includes a twelfth surface 124, the twelfth surface 124 of the voice coil 12 faces another voice coil 12 in the third direction, and one end of the twelfth surface 124 of the voice coil 12 close to the ninth surface 511 of the plate portion 51 is provided with glue.

[0176] In the embodiment, the region of the outer surface of the voice coil 12 close to the ninth surface 511 of the plate portion 51 is provided with glue, which can form additional fixation at the position of the outer surface of the voice coil 12 close to the plate portion 51. The connection strength and the restraining effect of the voice coil 12 in this region can be enhanced by glue, thereby reducing the possibility of relative displacement or shaking of the voice coil 12 in the third direction during vibration.

[0177] As an embodiment, please refer to Figure 16 , the voice coil 12 includes an inner surface, the inner surface of the voice coil 12 is arranged around the first direction, the plate portion 51 is located between the inner surfaces of the two voice coils 12 in the third direction, and the plate portion 51 has a spacing with the inner surfaces of the voice coils 12 in the third direction. As an example, the voice coil 12 has a rectangular ring structure, the inner surface of the voice coil 12 includes a thirteenth surface 125, the thirteenth surface 125 of the voice coil 12 is arranged away from another voice coil 12 in the third direction, the plate portion 51 is located between the thirteenth surfaces 125 of the two voice coils 12 in the third direction, that is, the projection of the plate portion 51 in the first direction is located between the projections of the thirteenth surfaces 125 of the two voice coils 12 in the first direction. In addition, the plate portion 51 has a spacing with the thirteenth surfaces 125 of the voice coils 12 in the third direction.

[0178] In the embodiment, the plate part 51 keeps a distance from the inner surfaces of the two voice coils 12 in the third direction, which can avoid direct contact or friction between the plate part 51 and the inner surfaces of the voice coils 12 during vibration, reserve a buffer space for the slight radial (third direction) deviation of the voice coils 12 when vibrating in the first direction, prevent the normal vibration of the voice coils 12 from being limited due to mechanical interference, and ensure the freedom and flexibility of the movement of the voice coils 12. At the same time, the distance can reduce the rigid constraint of the plate part 51 on the inner side of the voice coils 12, avoid additional stress or deformation of the voice coils 12 due to the lateral extrusion of the plate part 51 during vibration, and ensure the stable vibration of the voice coils 12 in the preset direction.

[0179] In some embodiments, please refer to Figure 17 The second magnet part 33 has the tenth surface 333 and the eleventh surface 334 arranged at intervals in the second direction, and the tenth surface 333 and the eleventh surface 334 together define the communication hole 332. The tenth surface 333 and the eleventh surface 334 are symmetrically arranged on both sides of the support 5 in the second direction, and the support 5 has a gap with the tenth surface 333 in the second direction, and the support 5 has a gap with the eleventh surface 334 in the second direction.

[0180] In the embodiment, the tenth surface 333 and the eleventh surface 334 are symmetrically arranged on both sides of the support 5 in the second direction, and the support 5 has a gap with the tenth surface 333 and the eleventh surface 334. The tenth surface 333 and the eleventh surface 334 symmetrically arranged can limit the support 5 in the second direction and prevent the support 5 from deviating too much in the second direction during vibration, and the gap can reserve enough space to prevent the support 5 from directly contacting or rubbing against the tenth surface 333 and the eleventh surface 334 of the second magnet part 33.

[0181] In some embodiments, please refer to Figure 19 The loudspeaker unit 10 further comprises a second elastic conductive part 6 connected between the two first elastic conductive parts 4. One end of the second elastic conductive part 6 is connected to one of the first elastic conductive parts 4, and the other end of the second elastic conductive part 6 is connected to the other first elastic conductive part 4. The second elastic conductive part 6 not only enables the two first elastic conductive parts 4 to form an electrically connected whole, but also further ensures the consistency and balance of the vibration of the plurality of voice coils 12.

[0182] As an example, the second elastic conductive part 6 can be a FPC (Flexible Printed Circuit), which has good conductivity and elastic recovery effect.

[0183] As an embodiment, please refer to Figure 19The one end of the second elastic conductive member 6 is connected to the first fixed part 41 of one of the first elastic conductive members 4, and the other end of the second elastic conductive member 6 is connected to the first fixed part 41 of the other first elastic conductive member 4, which not only facilitates assembly, but also avoids the influence of the second elastic conductive member 6 on the elastic deformation of the first elastic conductive member 4.

[0184] For example, please refer to Figure 20 The second surface 415 of the first fixed part 41 is formed with a third sunken surface 417 recessed inwardly relative to the second surface 415. The one end of the second elastic conductive member 6 is welded to the third sunken surface 417 of one of the first elastic conductive members 4, and the other end of the second elastic conductive member 6 is welded to the third sunken surface 417 of the other first elastic conductive member 4.

[0185] In this embodiment, the third sunken surface 417 provides a space for the welding of the second elastic conductive member 6 and the first elastic conductive member 4, which avoids the welding points of the second elastic conductive member 6 from protruding from the second surface 415 and interfering with the surrounding components. In addition, the third sunken surface 417 limits the flow range of the solder during welding, reduces the risk of short circuit caused by solder overflow, and makes the welding position of the second elastic conductive member 6 more stable, thereby improving the reliability of the electrical connection.

[0186] For example, please refer to Figure 19 The one end of the second elastic conductive member 6 is connected to the first fixed arm 411 of one of the first elastic conductive members 4, and the other end of the second elastic conductive member 6 is connected to the second fixed arm 412 of the other first elastic conductive member 4. That is, the connection points of the second elastic conductive member 6 and the two first elastic conductive members 4 are distributed staggered in the third direction, which reduces the risk of interference caused by structural stacking.

[0187] As an embodiment, please refer to Figure 18 and Figure 19 The second elastic conductive member 6 is in a wave-shaped structure extending in a plane perpendicular to the first direction, so that the second elastic conductive member 6 can elastically deform adaptively during the vibration of the diaphragm 11, without interfering with the surrounding components or pulling the first fixed part 41, thereby further improving the stability and reliability of the overall structure.

[0188] It should be noted that in other embodiments, the vibration system can also include three or more voice coils, and one support can be provided between each adjacent two voice coils, and two first elastic conductive members can be provided between each adjacent two voice coils. Correspondingly, the yoke can include more support parts, and the support parts are arranged one by one corresponding to the first elastic conductive members.

[0189] Example five

[0190] Please refer to Figures 21 to 27 Embodiment five of the present application is basically the same as embodiment four, and the difference between embodiment five and embodiment four is that the support 5 is a three-dimensional structure in embodiment five, and the support 5 further comprises at least one stand 52 extending from the plate 51 in the first direction.

[0191] In the present embodiment, the stand 52 of the support 5 extends from the plate 51 in the first direction, which can form an effective structural support in the direction perpendicular to the plate 51, further enhancing the rigidity and stability of the support 5 as a whole, making the connection between the voice coils 12 more secure, better transmitting the restraint force during the vibration of the voice coils 12, avoiding the deformation of the support 5 due to stress, which weakens the restraint effect on the voice coils 12, thereby further ensuring the consistency and balance of the vibration of the multiple voice coils 12.

[0192] In some embodiments, please refer to Figure 22 , Figure 25 and Figure 26 The stand 52 is arranged between the two voice coils 12. In the present embodiment, the stand 52 can form a structural support in the gap between the two voice coils 12, further enhancing the anti-deformation ability of the plate 51 in the third direction, avoiding the bending or twisting of the plate 51 due to the vibration of the voice coils 12, thereby ensuring the stable transmission of the restraint force of the plate 51 on the voice coils 12. Moreover, the stand 52 is located between the two voice coils 12, which can reduce the occupation of the inner or outer space of the voice coils 12, avoid interference with other components such as the magnetic circuit system 3, ensure the compactness of the internal structure of the loudspeaker unit 10 while ensuring the support strength of the support 5.

[0193] In some embodiments, please refer to Figure 22 , Figure 25 and Figure 26 The stand 52 has a gap with the voice coil 12 in the third direction, which can avoid the contact or friction between the stand 52 and the voice coil 12 during the vibration process, reserve a buffer space for the slight movement of the voice coil 12 in the third direction, and prevent the stand 52 from interfering with the normal vibration of the voice coil 12. At the same time, the gap can reduce the rigid constraint of the stand 52 on the voice coil 12, avoid the generation of additional stress or deformation of the voice coil 12 due to the extrusion of the stand 52 during the vibration, and ensure the stable vibration of the voice coil 12 in the preset direction.

[0194] In some embodiments, please refer to Figure 22 and Figure 23The stand portion 52 extends from the plate portion 51 towards the diaphragm 11. The stand portion 52 extending from the plate portion 51 towards the diaphragm 11 can effectively support the plate portion 51, further enhance the overall rigidity of the support 5 in the first direction, prevent the plate portion 51 from deforming in the first direction when the voice coil 12 vibrates, and ensure that the two voice coils 12 can transmit more stable restraint force through the plate portion 51. In addition, the stand portion 52 can avoid interfering with the magnetic circuit system 3 during the vibration of the voice coil 12.

[0195] In some embodiments, please refer to Figure 27 The plate portion 51 has a first side 51a and a second side 51b arranged opposite to each other in a second direction, and the stand portion 52 is formed on the first side 51a and / or the second side 51b of the plate portion 51. That is, the first side 51a of the plate portion 51 can be provided with at least one stand portion 52, and the second side 51b of the plate portion 51 can also be provided with at least one stand portion 52; or the first side 51a of the plate portion 51 can be provided with at least one stand portion 52, and the second side 51b of the plate portion 51 can not be provided with a stand portion 52; or the second side 51b of the plate portion 51 can be provided with at least one stand portion 52, and the first side 51a of the plate portion 51 can not be provided with a stand portion 52.

[0196] In the present embodiment, the stand portion 52 located on the side edge of the plate portion 51 can directly strengthen the rigidity of the edge of the plate portion 51, prevent the connection end of the plate portion 51 and the voice coil 12 from loosening due to edge deformation, further ensure the consistency and balance of the vibration of the multiple voice coils 12, and improve the acoustic performance stability of the loudspeaker unit 10.

[0197] As an embodiment, please refer to Figure 25 and Figure 27 The stand portion 52 includes a first stand portion 52a and a second stand portion 52b, the first stand portion 52a is formed on the first side 51a of the plate portion 51, the second stand portion 52b is formed on the second side 51b of the plate portion 51, the number of the first stand portion 52a is the same as the number of the second stand portion 52b, and the first stand portion 52a and the second stand portion 52b are arranged one by one in the second direction.

[0198] In the embodiment, the stand portions 52 include first stand portions 52a and second stand portions 52b, and the first stand portions 52a and the second stand portions 52b are arranged in the second direction in a one-to-one correspondence and in the same number, so that a symmetrical support structure can be formed on both sides of the plate portion 51, the force on the plate portion 51 in the second direction is more balanced, and the bending or tilting of the plate portion 51 caused by unilateral support is avoided, so as to ensure that the restraint force of the plate portion 51 on the two voice coils 12 is uniformly distributed in the second direction, and the deflection of the voice coil 12 caused by uneven force is reduced. Moreover, the symmetrical arrangement of the stand portions 52 can improve the torsional stiffness and overall stability of the support 5 in the second direction, so that the plate portion 51 is not easy to be twisted and deformed when the voice coil 12 vibrates, thereby effectively improving the acoustic performance stability of the loudspeaker unit 10.

[0199] For example, please refer to Figure 25 and Figure 27 The stand portions 52 include two first stand portions 52a and two second stand portions 52b, and the two first stand portions 52a are symmetrically arranged between the two voice coils 12 in the third direction, and the two second stand portions 52b are symmetrically arranged between the two voice coils 12 in the third direction.

[0200] In the embodiment, the two first stand portions 52a are symmetrically arranged between the two voice coils 12 in the third direction, and the two second stand portions 52b are symmetrically arranged between the two voice coils 12 in the third direction, so that a symmetrical support structure can be formed in the gap between the two voice coils 12 along the third direction, and the cooperative vibration effect of the multiple voice coils 12 is further improved, thereby better guaranteeing the acoustic performance stability and service life of the loudspeaker unit 10. It should be noted that in other embodiments, the stand portion can also include one first stand portion and / or one second stand portion, or the stand portion can also include two first stand portions or two second stand portions, or the stand portion can also include three or more first stand portions and / or three or more second stand portions, which can be arranged according to the actual situation, and will not be described here.

[0201] In some embodiments, please refer to Figure 27 The plate portion 51 includes a main body 512, a first protrusion 513, and two second protrusions 514. The first protrusion 513 is formed on the center line of the main body 512 in the second direction, and the first protrusion 513 protrudes on both sides of the main body 512 in the second direction. The two second protrusions 514 are symmetrically formed on both ends of the main body 512 in the third direction, each second protrusion 514 protrudes on both sides of the main body 512 in the second direction, and each second protrusion 514 is arranged in the third direction and spaced apart from the first protrusion 513. The stand portions 52 are formed on the main body 512, and the stand portions 52 are located between the first protrusion 513 and the second protrusion 514.

[0202] In the embodiment, the first protrusion 513 is located on the two sides of the main body 512 in the second direction and protrudes from the main body 512, which can strengthen the structural strength of the central region of the main body 512. The two second protrusions 514 are symmetrically distributed on the two ends of the main body 512 in the third direction and protrude from the two sides of the main body 512 in the second direction, which can enhance the rigidity of the connection part between the main body 512 and the voice coil 12 and avoid deformation of the plate part 51 due to vibration stress. The stand part 52 is located between the first protrusion 513 and the second protrusion 514. The first protrusion 513 and the second protrusion 514 can further improve the support stability and deformation resistance of the stand part 52, and can make the support force of the stand part 52 more evenly transmitted to the middle region of the main body 512, further avoiding deformation of the main body 512, thereby further ensuring the consistency and balance of the vibration of the plurality of voice coils 12 and improving the acoustic performance of the loudspeaker unit 10.

[0203] In some embodiments, please refer to Figure 22 and Figure 23 The first magnet part 32 includes a first magnetic steel 321 and a first pole core 322. The first magnetic steel 321 is fixed on the side of the magnetic yoke 31 close to the diaphragm 11 in the first direction, and the first pole core 322 is fixed on the side of the first magnetic steel 321 close to the diaphragm 11 in the first direction. The second magnet part 33 includes a second magnetic steel 335 and a second pole core 336. The second magnetic steel 335 is fixed on the side of the magnetic yoke 31 close to the diaphragm 11 in the first direction, and the second pole core 336 is fixed on the side of the second magnetic steel 335 close to the diaphragm 11 in the first direction. The first magnetic steel 321, the first pole core 322, the second magnetic steel 335, and the second pole core 336 jointly define a magnetic gap 34, and the second magnetic steel 335 and the second pole core 336 jointly define a communication hole 332. Please refer to Figure 22 A part of the projection of the stand part 52 in the second direction is located within the projection of the second magnetic steel 335 in the second direction, and another part of the projection of the stand part 52 in the second direction is located within the projection of the second pole core 336 in the second direction.

[0204] In the embodiment, the projection part of the stand part 52 in the second direction is located within the projection of the second magnetic steel 335 in the second direction and within the projection of the second pole core 336 in the second direction. The stand part 52 can block the second magnetic steel 335 and the second pole core 336, limit the loosening or displacement of the second magnetic steel 335 and the second pole core 336 in the second direction, so that the relative position of the second magnetic steel 335 and the second pole core 336 in the magnetic circuit system 3 can be kept stable, and the precision of the magnetic gap 34 in the second direction is ensured.

[0205] Example six

[0206] The embodiment six of the present application provides an assembling method of the loudspeaker unit, for assembling the loudspeaker unit 10 provided by any of the above embodiments, the assembling method comprises steps S31 to S34.

[0207] In step S31, the diaphragm 11 and the frame 2 are provided, and the diaphragm 11 and the frame 2 are fixed.

[0208] In step S32, two first elastic conductive members 4 are provided, and the two first elastic conductive members 4 are fixed to the diaphragm 11 and the frame 2.

[0209] For example, the first fixing part 41 can be fixed to the diaphragm 11 by glue, and the second fixing part 42 can be fixed to the support part 22 by glue.

[0210] In step S33, the voice coil 12 is provided, the voice coil 12 is fixed to the diaphragm 11, and the voice coil 12 is electrically connected to the first elastic conductive member 4.

[0211] For example, the voice coil 12 can be fixed to the diaphragm 11 by glue. The voice coil 12 can be electrically connected to the first fixing part 41 by welding. For example, the lead wire 126 of the voice coil 12 can be welded to the second surface 415 of the first fixing part 41.

[0212] In step S34, the assembled magnetic circuit system 3 is provided, the voice coil 12 is inserted into the magnetic gap 34, and the yoke 31 is fixed to the frame 2.

[0213] For example, when assembling the magnetic circuit system 3, the first pole core 322 and the first magnetic steel 321 can be fixed to form the first magnet part 32, the second pole core 336 and the second magnetic steel 335 can be fixed to form the second magnet part 33, and then the first magnet part 32 and the second magnet part 33 are sequentially fixed on the yoke 31 to form the assembled magnetic circuit system 3. In some examples, the first magnet part 32 and the second magnet part 33 can be glued on the yoke 31 by glue.

[0214] In the embodiment of the present application, the first fixing part 41 of the first elastic conductive member 4 is fixed to the diaphragm 11 and electrically connected to the voice coil 12, the second fixing part 42 is fixed to the support part 22, the magnetic circuit system 3 is inserted and matched with the voice coil 12 and fixed to the frame body part 21, the first elastic conductive member 4 and the magnetic circuit system 3 are not connected to each other and do not affect each other during assembly, which effectively simplifies the assembly process and reduces the assembly difficulty, thereby improving the production efficiency, improving the assembly precision, consistency and concentricity of the loudspeaker unit 10, and improving the product quality.

[0215] In the related art, one end of the first elastic conductive member is fixed to the diaphragm, and the other end of the first elastic conductive member has spatial overlap with the second magnet portion and is fixed to the second magnet portion. Therefore, when assembling the magnetic circuit system, the magnetic circuit system cannot be assembled on the speaker unit at one time, and the second magnet portion needs to be installed first, and then the assembly of the first magnet portion and the yoke is installed. When the second magnet portion is installed after the one end of the first elastic conductive member is fixed to the diaphragm, the two ends of the first elastic conductive member away from the diaphragm need to be pried open first, so that the second magnet portion can be inserted between the two first elastic conductive members. After the second magnet portion is installed, the two ends of the first elastic conductive member away from the diaphragm need to be restored to the original state, and then the first elastic conductive member is fixed to the second magnet portion, and finally the assembly of the first magnet portion and the yoke is fixed to the second magnet portion and the basket. The speaker unit not only has a complicated assembly process, but also is difficult to ensure that the first elastic conductive member can completely restore to the original state, and it is also difficult to ensure the concentricity of the magnetic circuit system, and the assembly difficulty is great.

[0216] In the embodiment, during assembly, the first elastic conductive member 4 does not need to be deformed to give way to other structures, so that the adverse effects of forcibly changing the shape of the first elastic conductive member 4 on the performance of the first elastic conductive member 4 during assembly can be avoided. At the same time, the first elastic conductive member 4 does not interfere with the assembly of the magnetic circuit system 3, and the magnetic circuit system 3 can be assembled first, and then the magnetic circuit system 3 is assembled on the basket 2 at one time. This not only ensures the assembly accuracy, consistency and concentricity of the speaker unit 10, but also facilitates assembly, and further improves the product quality and assembly efficiency of the speaker unit 10.

[0217] Embodiment Seven

[0218] For reference Figures 28 to 36 The embodiment seven of the present application provides a speaker box 100, which comprises a shell 7, a speaker unit 10 provided by any of the above embodiments, and a circuit board 8. The shell 7 has a receiving space 71, the speaker unit 10 is received in the receiving space 71, the circuit board 8 is electrically connected with the speaker unit 10, and the circuit board 8 is connected to the side of the second fixing portion 42 away from the basket 2.

[0219] In the embodiment, the height of the basket 2 is adjusted to adjust the position of the second fixing portion 42 of the first elastic conductive member 4, and then the mounting space of the circuit board 8 connected to the second fixing portion 42 is provided, which is more convenient for assembly, further reduces the assembly difficulty, and improves the production efficiency and the assembly accuracy of the speaker box 100.

[0220] In some embodiments, the basket 2 comprises a basket body portion 21 and a support portion 22. The basket body portion 21 is annular, the basket body portion 21 is fixed to the diaphragm 11, and the basket body portion 21 is arranged in the first direction. For reference Figure 35The support portion 22 is formed on the side of the yoke body portion 21 away from the diaphragm 11, and includes a first support body 221 and a second support body 222. The first support body 221 extends from the yoke body portion 21 in a direction away from the diaphragm 11. The second support body 222 is bent and extends from the end of the first support body 221 away from the yoke body portion 21 towards the inside of the speaker unit 10. The end of the second support body 222 away from the diaphragm 11 is fixed to the second fixing portion 42.

[0221] In the present embodiment, the first support body 221 extends from the yoke body portion 21 in the first direction away from the diaphragm 11, which can provide stable support for the second support body 222. Moreover, the position of the second fixing portion 42 of the first elastic conductive member 4 can be adjusted by adjusting the height of the first support body 221 in the first direction. Furthermore, the second support body 222 is bent and extends from the end of the first support body 221 away from the yoke body portion 21 towards the inside of the speaker unit 10. The end of the second support body 222 away from the diaphragm 11 in the first direction is fixed to the second fixing portion 42, which not only makes the layout of the speaker box 100 more compact, but also effectively increases the contact and fixing area of the second fixing portion 42 and the support portion 22, further improving the stability of the overall structure.

[0222] As an embodiment, please refer to Figures 28 to 36 The shell 7 includes an upper shell 72 opposite to the diaphragm 11 and a lower shell 73 covering the upper shell 72 to form a containing space 71. The lower shell 73 is arranged opposite to the yoke 31. The second fixing portion 42 includes a third surface 421 fixedly connected to the second support body 222 and a fourth surface 422 opposite to the third surface 421. The circuit board 8 is connected to the fourth surface 422. The yoke 31 includes a fourteenth surface 312 connected to the first magnet portion 32 and a fifteenth surface 313 arranged opposite to the fourteenth surface 312. The fifteenth surface 313 is arranged opposite to the lower shell 73. The fourteenth surface 312 of the yoke 31 is closer to the lower shell 73 than the fourth surface 422 of the second fixing portion 42 in the first direction. That is, in the present embodiment, the second fixing portion 42 of the first elastic conductive member 4 is arranged apart from the yoke 31 in the first direction. The distance L1 from the bottom surface of the second fixing portion 42 (i.e. the surface of the second fixing portion 42 closest to the lower shell 73, i.e. the fourth surface 422) to the lower shell 73 is greater than the distance L2 from the top surface of the yoke 31 (i.e. the surface of the yoke 31 farthest away from the lower shell 73, i.e. the fourteenth surface 312) to the lower shell 73, thereby providing more space for the connection of the circuit board 8 and the second fixing portion 42.

[0223] In some embodiments, please refer to Figure 29 , Figure 33 , Figure 35 and Figure 36, the magnetic yoke 31 has a second slot structure 311 penetrating the magnetic yoke 31 in the first direction, the circuit board 8 comprises a circuit board body part 81 connected with the magnetic yoke 31, a first connecting part 82 bent and extended from the circuit board body part 81 to the second fixing part 42, and a second connecting part 83 bent and extended from the first connecting part 82 to the outside of the speaker unit 10, the first connecting part 82 and the second connecting part 83 are arranged in the second slot structure 311, and the second connecting part 83 is connected with the fourth surface 422 of the second fixing part 42, so that the overall structure of the speaker box 100 is more compact. Preferably, the fifteenth surface 313 of the magnetic yoke 31 is recessed to form a recess 314 in the direction of the diaphragm 11, and the circuit board body part 81 of the circuit board 8 is arranged in the recess 314, that is, the surface 811 of the circuit board 8 opposite to the lower shell 73 is flush with the surface of the magnetic yoke 31 opposite to the lower shell 73 (i.e., the fifteenth surface 313 of the magnetic yoke 31), thereby facilitating the miniaturization of the speaker box.

[0224] As an embodiment, the second connecting part 83 and the fourth surface 422 are connected by an adhesive. In the embodiment, the second connecting part 83 and the fourth surface 422 are first fixed by welding, and then glue is applied to the fourth surface 422, so that the connection between the second connecting part 83 and the fourth surface 422 is more fixed and the reliability is enhanced. Therefore, the adhesive can be solder and / or glue, and the fourteenth surface 312 of the magnetic yoke 31 is closer to the lower shell 73 in the first direction than the adhesive, that is, the distance from the bottom surface of the glue (i.e., the surface of the glue closest to the lower shell 73) to the lower shell 73 is greater than the distance L2 from the top surface of the magnetic yoke 31 (i.e., the surface of the magnetic yoke 31 farthest from the lower shell 73, i.e., the fourteenth surface 312) to the lower shell 73. That is, after the circuit board 8 is fixedly connected with the first elastic conductive part 4, the glue does not exceed the circuit board body part 81 and / or the magnetic yoke 31. In the ultra-thin speaker box, the gap between the lower shell 73 of the speaker box and the magnetic yoke 31 is very small. Since the bottom surface of the circuit board 8 after being fixed with the first elastic conductive part 4 (i.e., the surface of the glue opposite to the lower shell 73) does not exceed the circuit board body part 81 / magnetic yoke 31, that is, the glue does not connect with the lower shell 73, the reliability of the speaker box is ensured. In addition, in the embodiment, the height of the first elastic conductive part 4 can be adjusted only by the height of the basket 2, so that the first elastic conductive part 4 can be flexibly adapted to various products.

[0225] As an example, the circuit board 8, the first elastic conductive part 4, and the second elastic conductive part 6 can all be FPC (Flexible Printed Circuit, flexible printed circuit board).

[0226] The above only describes the embodiments of the present application, and it should be pointed out that those skilled in the art can make improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. A speaker unit, characterized by The loudspeaker unit comprises: a vibration system comprising a diaphragm and a voice coil for driving the diaphragm to vibrate and emit sound; a basket comprising a ring-shaped basket body portion and a support portion, the basket body portion is fixed to one side of the diaphragm in a first direction and is arranged around the first direction, the first direction is the vibration direction of the diaphragm, and the support portion is formed on the side of the basket body portion away from the diaphragm; a magnetic circuit system comprising a yoke, a first magnet portion and a second magnet portion, the yoke is fixed to the side of the basket away from the diaphragm, the first magnet portion and the second magnet portion are respectively fixed to the side of the yoke facing the basket, the second magnet portion is arranged around the first magnet portion and spaced apart from the first magnet portion to form a magnetic gap, and the voice coil is inserted into the magnetic gap; and a first elastic conductive member, the first elastic conductive member comprises a first fixed portion and a second fixed portion arranged opposite in the first direction, and an elastic connecting portion elastically connecting the first fixed portion and the second fixed portion, the first fixed portion is fixed to the side of the diaphragm connected to the basket and is electrically connected to the voice coil, the second fixed portion is fixed to the side of the support portion away from the basket body portion, the side of the second fixed portion close to the central axis of the loudspeaker unit is the inner side of the second fixed portion, and the elastic connecting portion is bent and extends from the inner side of the second fixed portion to the first fixed portion.

2. The speaker unit of claim 1, wherein The loudspeaker unit comprises two first elastic conductive members, and the two first elastic conductive members are arranged in axial symmetry or central symmetry about the central axis of the loudspeaker unit.

3. The speaker unit of claim 1, wherein The first fixed portion comprises a first fixed arm, a second fixed arm, and a connecting arm connected between the first fixed arm and the second fixed arm, the elastic connecting portion is connected to the connecting arm, the first fixed arm and the second fixed arm are symmetrically arranged on both sides of the elastic connecting portion and respectively have a gap with the elastic connecting portion, and the first fixed arm and the second fixed arm are respectively fixed to the diaphragm.

4. The speaker unit of claim 3, wherein The side of the connecting arm close to the central axis of the loudspeaker unit is the inner side of the connecting arm; The first fixed arm, the second fixed arm and the elastic connecting portion are arranged on the inner side of the connecting arm.

5. The speaker unit of claim 1, wherein The first fixed portion has a first surface and a second surface arranged in sequence in the first direction away from the diaphragm, the first surface of the first fixed portion is fixed to the diaphragm, and the distance between the first surface and the second surface is the thickness of the first fixed portion; The second fixed portion has a third surface and a fourth surface arranged in sequence in the first direction away from the diaphragm, the third surface of the second fixed portion is fixed to the basket, and the distance between the third surface and the fourth surface is the thickness of the second fixed portion; The elastic connecting part comprises a fifth surface and a sixth surface arranged oppositely, one end of the fifth surface is connected to the first surface in the first direction, the other end of the fifth surface is connected to the fourth surface in the first direction, and the distance between the fifth surface and the sixth surface is the thickness of the elastic connecting part; The thickness of the elastic connecting part is less than the thickness of the first fixed part, and / or the thickness of the elastic connecting part is less than the thickness of the second fixed part, and / or the thickness of the first fixed part is less than the thickness of the second fixed part.

6. The speaker unit of claim 5, wherein The second surface is formed with a first sunken platform recessed inwardly relative to the second surface, and the voice coil comprises lead wires welded to the first sunken platform; and / or the fourth surface is formed with a second sunken platform recessed inwardly relative to the fourth surface, and the second sunken platform is used for welding with an external circuit board.

7. The speaker unit of claim 1, wherein The elastic connecting part comprises a first transition section, a first inclined section, a vertical section, a second inclined section and a second transition section connected in sequence, the vertical section extends along the first direction, the first transition section extends from the first fixed part in a direction away from the first fixed part, the second transition section extends from the inner side of the second fixed part in a direction away from the second fixed part, and the first inclined section and the second inclined section respectively extend from the first transition section and the second transition section to the two ends of the vertical section in the first direction.

8. The speaker unit of claim 7, wherein The first fixed part comprises an inner side arranged close to the central axis of the loudspeaker unit, and the first transition section extends from the inner side of the first fixed part in a direction away from the first fixed part.

9. The speaker unit of claim 8, wherein The first transition section and the second transition section extend in the same direction.

10. The speaker unit of claim 7, wherein The first fixed part comprises an inner side arranged close to the central axis of the loudspeaker unit, an outer side arranged opposite to the inner side, and a first side connected between the inner side and the outer side of the first fixed part, and the first transition section extends from the first side of the first fixed part in a direction away from the first fixed part.

11. The speaker unit of claim 10, wherein The first transition section comprises a first arm body and a second arm body bent in the same plane, one end of the first arm body away from the second arm body is connected to the first side of the first fixed part, one end of the second arm body away from the first arm body is connected to the first inclined section, the second arm body and the second transition section extend in the same direction, and the projection of the first inclined section in the first direction and the projection of the second inclined section in the first direction intersect. Alternatively, the second transition section comprises a third arm body and a fourth arm body bent in the same plane, one end of the third arm body away from the fourth arm body is connected to the inner side of the second fixed part, one end of the fourth arm body away from the third arm body is connected to the second inclined section, and the fourth arm body and the first transition section extend in the same direction.

12. The speaker unit of claim 1, wherein The support portion includes a first support body extending from the yoke body portion in a direction away from the diaphragm, and a second support body bent from one end of the first support body away from the yoke body portion to extend into the speaker unit.

13. The speaker unit of claim 1, wherein The second magnet portion has a first slot structure extending through the second magnet portion in the first direction; The magnetic yoke has a second slot structure extending through the magnetic yoke in the first direction, and the second slot structure and the first slot structure are correspondingly arranged in the first direction to jointly define a clearance slot; The second fixing portion is accommodated in the clearance slot, and the elastic connecting portion is partially accommodated in the clearance slot and partially exposed outside the clearance slot, and the first fixing portion is exposed outside the clearance slot.

14. The speaker unit of claim 13, wherein A projection of the first fixing portion in the first direction is at least partially located outside a projection of the clearance slot in the first direction.

15. The speaker unit of claim 13, wherein The clearance slot is divided into a first region and a second region arranged in sequence in a direction away from the clearance slot opening, and the second fixing portion is accommodated in the first region, and the elastic connecting portion is partially accommodated in the first region and partially accommodated in the second region. The width of the first region is greater than the width of the second fixing portion, the width of the second region is greater than the width of the elastic connecting portion, and the width of the second region is less than the width of the second fixing portion, and the width of the second fixing portion is greater than the width of the elastic connecting portion.

16. The speaker unit of claim 13, wherein The second slot structure is divided into a first slot segment and a second slot segment in the first direction, and the second slot segment is located on a side of the first slot segment away from the second magnet portion in the first direction; A projection of the first slot structure in the first direction is located within a projection of the first slot segment in the first direction, and a projection of the second fixing portion in the first direction is partially located within a projection of the second slot segment in the first direction and partially located outside the projection of the second slot segment in the first direction.

17. The speaker unit of claim 16, wherein The first slot segment and the second slot segment have a seventh surface as a boundary surface in the first direction, and the seventh surface has a gap with the second fixing portion in the first direction.

18. The speaker unit of claim 1, wherein The first elastic conductive member is arranged outside the voice coil.

19. The speaker unit of claim 18, wherein The vibration system includes one voice coil connected to one side of the diaphragm connected to the yoke, and the voice coil includes a voice coil body portion and a recessed portion, the voice coil body portion includes a pair of long axis sides arranged opposite to each other and a pair of short axis sides arranged opposite to each other, at least one long axis side of the pair of long axis sides is recessed to form a recessed portion in a direction close to the other long axis side, and the first elastic conductive member is arranged outside the recessed portion.

20. The speaker unit of claim 18, wherein The vibration system includes two voice coils arranged around the first direction, and the two voice coils are arranged in a spaced manner and connected to one side of the diaphragm connected to the yoke respectively; The magnetic circuit system comprises two first magnet portions arranged at intervals, and two second magnet portions arranged at intervals and corresponding to the first magnet portions respectively to form the magnetic gaps corresponding to the voice coils, wherein the second magnet portions are provided with a communication hole communicating the two magnetic gaps, and the communication hole penetrates the second magnet portions in the first direction; The vibration system further comprises a support arranged between the two voice coils and penetrating the communication hole, wherein the support is arranged on the side of the voice coils away from the diaphragm, and the support is fixed to the two voice coils respectively.

21. The speaker unit of claim 20, wherein When the voice coils are not powered, the distance between the support and the diaphragm in the first direction is greater than the distance between the magnetic circuit system and the diaphragm in the first direction. The support and the yoke have a gap in the first direction.

22. The speaker unit of claim 20, wherein The support and the hole wall of the communication hole have a gap.

23. The speaker unit of claim 20, wherein The support comprises a plate portion perpendicular to the first direction, the voice coil has an eighth surface arranged in the first direction and facing the plate portion, the plate portion has a ninth surface arranged in the first direction and facing the voice coil, one end of the ninth surface is fixed to the eighth surface of one of the voice coils by glue, and the other end of the ninth surface is fixed to the eighth surface of the other voice coil by the glue.

24. The speaker unit of claim 23, wherein The voice coil has an outer surface arranged around the first direction, and the area close to the ninth surface of the outer surface of the voice coil is provided with the glue.

25. The speaker unit of claim 23, wherein The voice coil has an inner surface arranged around the first direction, the projection of the plate portion in the first direction is located between the projections of the inner surfaces of the two voice coils in the first direction, and the plate portion and the inner surfaces of the voice coils have a gap.

26. The speaker unit of claim 23, wherein The support further comprises at least one stand portion extending from the plate portion in the first direction, and the stand portion is arranged between the two voice coils.

27. The speaker unit of claim 26, wherein The stand portion extends from the plate portion towards the diaphragm; and / or, the stand portion has a gap with the voice coil.

28. The speaker unit of claim 26, wherein the speaker unit is a speaker unit of a speakerphone. The plate portion has a first side and a second side arranged symmetrically about the central axis of the loudspeaker unit, the stand portion comprises a first stand portion and a second stand portion, the first stand portion is formed on the first side of the plate portion, the second stand portion is formed on the second side of the plate portion, and the first stand portion and the second stand portion are arranged symmetrically about the central axis of the loudspeaker unit.

29. The speaker unit of claim 20, wherein The loudspeaker unit comprises two first elastic conductive members arranged symmetrically about the central axis of the loudspeaker unit; The loudspeaker unit further comprises a second elastic conductive member, one end of the second elastic conductive member is connected to one of the first elastic conductive members, and the other end of the second elastic conductive member is connected to the other first elastic conductive member.

30. The speaker unit of claim 29, wherein One end of the second elastic conductive member is connected to the first fixed portion of one of the first elastic conductive members, and the other end of the second elastic conductive member is connected to the first fixed portion of the other first elastic conductive member.

31. The speaker unit of claim 30, wherein The first fixed part has a first surface and a second surface arranged in sequence in a direction away from the diaphragm in the first direction, the first surface of the first fixed part is fixed to the diaphragm, and the second surface of the first fixed part is formed with a third sunken surface recessed inwardly relative to the second surface; The two ends of the second elastic conductive part are respectively welded on the third sunken surfaces of the two first fixed parts.

32. The speaker unit of claim 30, wherein The first fixed part includes a first fixed arm, a second fixed arm, and a connecting arm connected between the first fixed arm and the second fixed arm, the elastic connecting part is connected to the connecting arm, the first fixed arm and the second fixed arm are symmetrically arranged on both sides of the elastic connecting part and respectively have a gap with the elastic connecting part, and the first fixed arm and the second fixed arm are respectively fixed with the diaphragm, the first fixed arms of the two first elastic conductive parts extend towards each other and are symmetrically arranged, and the second fixed arms of the two first elastic conductive parts extend towards each other and are symmetrically arranged; One end of the second elastic conductive part is connected to the first fixed arm of one of the first elastic conductive parts, and the other end of the second elastic conductive part is connected to the second fixed arm of the other first elastic conductive part.

33. The speaker unit of claim 29, wherein the speaker unit is a speaker unit of a speakerphone. The second elastic conductive part is in a wave shape structure extending in a plane perpendicular to the first direction.

34. A method of assembling a loudspeaker unit, characterised by, A method for assembling the loudspeaker unit of any one of claims 1-33, the method comprising: providing the diaphragm and the frame, and fixing the diaphragm and the frame; providing the first elastic conductive part, and fixing the first elastic conductive part to the diaphragm and the frame; providing the voice coil, and fixing the voice coil to the diaphragm and electrically connecting the voice coil with the first elastic conductive part; providing the assembled magnetic circuit system, and inserting the voice coil into the magnetic gap, and fixing the yoke to the frame.

35. A loudspeaker enclosure characterized by, A loudspeaker device comprising a housing having a receiving space, a loudspeaker unit as claimed in any one of claims 1-33 received in the receiving space, and a circuit board electrically connected with the loudspeaker unit, the circuit board being connected to the second fixed part away from the frame.

36. The loudspeaker enclosure of claim 35, wherein, The frame comprises: a ring-shaped frame body part fixed to the diaphragm and arranged around the first direction; and a support part formed on a side of the frame body part away from the diaphragm, the support part comprising a first support body extending from the frame body part in a direction away from the diaphragm, and a second support body extending from an end of the first support body away from the frame body part towards the inside of the loudspeaker unit, an end of the second support body away from the diaphragm being fixed with the second fixed part. The shell includes an upper shell opposite to the diaphragm and a lower shell opposite to the magnetic yoke and forming the accommodating space with the upper shell, the second fixed part includes a third surface fixedly connected with the second support body and a fourth surface opposite to the third surface, the magnetic yoke includes a fourteenth surface connected with the first magnet part and a fifteenth surface opposite to the fourteenth surface and opposite to the lower shell, the circuit board is connected with the fourth surface, and the fourteenth surface of the magnetic yolk is closer to the lower shell than the fourth surface of the second fixed part in the first direction.

37. The loudspeaker enclosure of claim 36, wherein The magnetic yolk has a second slot structure penetrating through the magnetic yolk in the first direction, the circuit board includes a circuit board body part connected with the magnetic yolk, a first connecting part bent and extended from the circuit board body part to the second fixed part, and a second connecting part bent and extended from the first connecting part to the outside of the loudspeaker unit, the first connecting part and the second connecting part are arranged in the second slot structure, and the second connecting part is connected with the fourth surface of the second fixed part.

38. The loudspeaker enclosure of claim 37, wherein, The second connecting part is connected with the fourth surface through an adhesive, and the fourteenth surface of the magnetic yolk is closer to the lower shell than the adhesive in the first direction.

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