Sound production module and electronic equipment

Abstract

The utility model discloses a sound production module and an electronic device, comprising a module housing, a sound production monomer and a retaining wall structure, the side part of the module housing is provided with a sound outlet hole; the sound production monomer is arranged in the module shell and is matched with the module shell to form a front sound cavity communicated with the sound outlet hole; the retaining wall structure at least comprises a first shielding part located on the side, close to the sound outlet hole, of the sound guide hole, a sound cavity corresponding to and communicated with the sound guide hole is formed in the side, away from the sound outlet hole, of the first shielding part, and sound transmission channels corresponding to the bass radiation area are formed between the two ends, in the extending direction, of the first shielding part and the inner side face of the module shell. The two sound transmission channels are communicated with the sound cavity, and sound waves generated by the high-pitch vibrating diaphragm assembly are transmitted into the sound cavity through the sound guide hole, are transmitted through the two sound transmission channels, and then are transmitted out through the sound outlet hole. According to the utility model, the high pitch is effectively expanded to the ultrasonic frequency band while the audible sound frequency band performance is not reduced, the ultrasonic frequency band performance is effectively improved, the high-frequency performance can be improved, and the sound quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic technology, and in particular to a sound-generating module and electronic device. Background Technology

[0002] In smart devices, such as smartphones, proximity sensors function during calls. When a face approaches the screen, the screen turns off to prevent accidental touches. Common proximity sensors include optical displacement sensors and ultrasonic displacement sensors. The performance of most components in smart devices is positively correlated with their size, such as camera modules, speaker modules, proximity sensors, and batteries. Implementing proximity sensor functionality within the speaker module can effectively reduce the overall size of the device, saving internal space and improving the utilization of internal space in the smart device. However, existing speaker modules cannot extend their high frequencies to the ultrasonic band, specifically frequencies above 20kHz, thus preventing the implementation of ultrasonic ranging functionality within the speaker module. Furthermore, when the product size is large, or the front cavity volume is large, operating only with high frequencies after the crossover point of the frequency response curve can create high-frequency interference valleys, affecting high-frequency performance and sound quality. Utility Model Content

[0003] The main purpose of this utility model is to propose a sound-generating module and electronic device, which aims to solve the technical problems in the prior art where the high frequencies cannot be extended to the ultrasonic band in the speaker module and the high-frequency performance is affected when the product size or front cavity volume is large.

[0004] To achieve the above objectives, this utility model proposes a sound-generating module, the sound-generating module comprising:

[0005] The module housing includes a first housing and a second housing, which are fastened together to form a mounting cavity. A sound outlet is provided on the side of the module housing.

[0006] A sound-generating unit is disposed within the mounting cavity, and the sound-generating unit cooperates with the module housing to form a front acoustic cavity communicating with the sound outlet. The sound-generating unit includes a magnetic circuit system and a first vibration system and a second vibration system corresponding to the magnetic circuit system. The first vibration system includes a tweeter diaphragm assembly, and the second vibration system includes a woofer diaphragm assembly. On the side of the sound-generating unit facing the front acoustic cavity, there are a high-frequency radiation area corresponding to the tweeter diaphragm assembly and a low-frequency radiation area corresponding to the woofer diaphragm assembly. Along the vibration direction of the first vibration system / second vibration system, the woofer diaphragm assembly is located between the tweeter diaphragm assembly and the module housing. The sound-generating module also includes a sound guide hole opposite to the tweeter diaphragm assembly, and the woofer diaphragm assembly surrounds the sound guide hole.

[0007] A baffle structure is disposed within the front acoustic cavity. The baffle structure includes at least a first blocking portion located on the side of the sound guide hole near the sound outlet hole. The side of the first blocking portion away from the sound outlet hole forms an acoustic cavity corresponding to and connected to the sound guide hole. Both ends of the first blocking portion along its extension direction form a sound transmission channel corresponding to the bass radiation area between it and the inner side of the module housing. Both sound transmission channels are connected to the acoustic cavity. The sound waves generated by the tweeter diaphragm assembly are transmitted into the acoustic cavity through the sound guide hole, propagated through the two sound transmission channels, and then transmitted out through the sound outlet hole.

[0008] Optionally, a second blocking part is provided at both ends of the first blocking part along its extension direction. The first blocking part and the two second blocking parts together form the acoustic cavity. The acoustic cavity has a sound passage hole with a sound emission direction different from that of the sound outlet hole. The two sound transmission channels are located on both sides of the acoustic cavity and are connected to the sound passage hole. The sound wave generated by the tweeter diaphragm assembly enters the acoustic cavity through the sound guide hole, then propagates through the sound passage hole and the two sound transmission channels before being emitted through the sound outlet hole.

[0009] Optionally, the extension direction of the first shielding part is set at an angle to the direction in which the sound wave propagates from the sound transmission channel to the sound outlet, both ends of the first shielding part along its extension direction are connection ends, one end of each of the two second shielding parts is connected to the two connection ends respectively, and the other ends of the two second shielding parts form the sound outlet.

[0010] Optionally, the two second blocking portions extend from the two connecting ends in a direction away from the sound outlet, so that the sound passage is opposite to and opposite to the sound outlet.

[0011] Optionally, one of the second blocking portions extends from the corresponding connecting end in a direction away from the sound outlet, and the other second blocking portion extends from the corresponding connecting end in a direction away from the sound outlet and then bends to extend towards the other connecting end, so that the sound outlets are distributed on the side of the sound outlet.

[0012] Optionally, the sound-generating module further includes a cover plate. Along the direction close to the front acoustic cavity, the cover plate is disposed on the side of the tweeter diaphragm assembly facing the front acoustic cavity. The cover plate has the sound guide hole, and the position of the cover plate with the sound guide hole is connected to the inner edge of the bass diaphragm assembly. The outer edge of the cover plate is connected to the magnetic circuit system.

[0013] Optionally, the inner edge of the bass diaphragm assembly matches the shape of the sound guide hole, the inner edge of the bass diaphragm assembly has a closed annular structure, and the first blocking portion and the two second blocking portions form a non-closed annular structure that matches the shape of the inner edge of the bass diaphragm assembly.

[0014] Optionally, the inner edge of the bass diaphragm assembly has a square closed structure, and the first shielding portion and the two second shielding portions form a square non-closed structure.

[0015] Optionally, the inner edge of the bass diaphragm assembly includes two first connecting edges and two second connecting edges connected between the two first connecting edges, wherein the two first connecting edges are disposed corresponding to the sound outlet, and the first blocking portion is disposed on one of the first connecting edges near the sound outlet; the two second blocking portions are respectively disposed on the two second connecting edges.

[0016] The extension length of the second connecting edge is L2, and the extension length of the second blocking part is a2, wherein 0.1≤a2 / L2≤1; and / or, the extension lengths of the two second blocking parts are the same or different.

[0017] Optionally, the inner edge of the bass diaphragm assembly includes two first connecting edges and two second connecting edges connected between the two first connecting edges, wherein the two first connecting edges are arranged corresponding to the sound outlet, and the first blocking portion is arranged on one of the first connecting edges close to the sound outlet; one of the second blocking portions is arranged on one of the second connecting edges on the same side, and the other second blocking portion includes a first blocking segment and a second blocking segment, the second blocking segment is arranged on the other second connecting edge and connected to the first blocking portion, and the first blocking segment is arranged on the other first connecting edge and connected to the end of the second blocking segment away from the first blocking portion;

[0018] The extension length of the first connecting edge is L1, the extension length of the second connecting edge is L2, the extension length of the first occluding segment is b1, and the extension length of the second occluding segment is b2, wherein 0.1≤b1 / L1≤1.2, and b2=L2.

[0019] Optionally, a first horizontal support portion is formed on the outer edge of the cover plate, and a second horizontal support portion is formed at the center of the cover plate. The second horizontal support portion is located on the side of the first horizontal support portion closer to the bass diaphragm assembly. The first horizontal support portion is supported and fixed to the magnetic circuit system, and the second horizontal support portion is arranged around the sound guide hole.

[0020] At least a portion of the retaining wall structure is located in the second horizontal support section;

[0021] And / or, the inner edge of the bass diaphragm assembly is fixed to the second horizontal support;

[0022] Alternatively, the inner edge of the bass diaphragm assembly is sandwiched between the retaining wall structure and the second horizontal support.

[0023] Optionally, the retaining wall structure abuts against the bass diaphragm assembly and the inner side of the module housing corresponding to the bass diaphragm assembly.

[0024] Optionally, the retaining wall structure is made of metal or plastic; and / or, the retaining wall structure is integrally formed with the module housing;

[0025] or,

[0026] The retaining wall structure is made of sound-absorbing cotton.

[0027] Optionally, the magnetic circuit system forms a first magnetic gap;

[0028] The tweeter diaphragm assembly includes a tweeter diaphragm and a tweeter reinforcement portion connected to the inner edge of the tweeter diaphragm;

[0029] The first vibration system further includes a tweeter voice coil, one end of which is connected to the tweeter diaphragm assembly, and the other end of which extends away from the front acoustic cavity and is disposed corresponding to the first magnetic gap.

[0030] Optionally, the magnetic circuit system further includes a second magnetic gap;

[0031] The bass diaphragm assembly includes a bass reinforcement portion, an inner bass surround, and an outer bass surround surrounding the inner bass surround. The bass reinforcement portion is connected to the outer edge of the inner bass surround and the outer edge of the outer bass surround. The baffle structure is connected to the inner edge of the inner bass surround on the side facing the front acoustic cavity.

[0032] The second vibration system further includes a bass voice coil, which surrounds the tweeter diaphragm assembly. One end of the bass voice coil is connected to one side of the bass diaphragm assembly, and the other end of the bass voice coil extends away from the front acoustic cavity and is inserted into the second magnetic gap.

[0033] Optionally, the magnetic circuit system includes a magnetic yoke and a central magnetic part and a side magnetic part disposed on the magnetic yoke. The central magnetic part includes a first magnetic part and a second magnetic part disposed on the outer periphery of the first magnetic part. A first magnetic gap is formed between the first magnetic part and the second magnetic part, and a second magnetic gap is formed between the second magnetic part and the side magnetic part.

[0034] This invention also proposes an electronic device, which includes a housing and a sound-generating module as described above housed within the housing.

[0035] This utility model's sound-generating module, in addition to providing high-frequency and low-frequency functions, also includes a baffle structure. The baffle structure is disposed within the front acoustic cavity and includes at least a first blocking portion. The first blocking portion is located on the side of the sound guide hole near the sound outlet hole, and an acoustic cavity is formed on the side of the first blocking portion away from the sound outlet hole. The acoustic cavity corresponds to and communicates with the sound guide hole. Both ends of the first blocking portion along its extension direction form sound transmission channels with the inner surface of the module housing. These sound transmission channels are correspondingly positioned to correspond to the low-frequency radiation area. The two sound transmission channels are located on both sides of the acoustic cavity and are both connected to the acoustic cavity.

[0036] This configuration creates a sound cavity opposite to the sound outlet through a barrier structure, and constructs two sound transmission channels on both sides of the sound cavity. This prevents the sound waves generated by the tweeter diaphragm assembly from being directly transmitted to the sound outlet. Instead, the sound waves enter the sound cavity through the sound guide hole, propagate through the two sound transmission channels, and then exit through the sound outlet. This ensures that the performance of the audible frequency band is not reduced, while effectively extending the high frequencies to the ultrasonic frequency band, that is, to the frequency band greater than 20KHz, effectively improving the performance of the ultrasonic frequency band, thereby realizing the ultrasonic ranging function within the sound generation module.

[0037] Furthermore, since the bass diaphragm assembly and module housing cooperate to form the front acoustic cavity, and the tweeter diaphragm assembly is located on the side of the bass diaphragm assembly away from the front acoustic cavity, it does not occupy additional volume of the front acoustic cavity. The tweeter diaphragm assembly can be installed by fully utilizing the space on the side of the bass diaphragm assembly away from the front acoustic cavity, thus eliminating the need to increase the product size in the height direction or increase the volume of the front acoustic cavity. This improves high-frequency interference valleys, thereby improving high-frequency performance and enhancing sound quality, while not affecting low-frequency performance; the sound-generating module still has excellent low-frequency performance. In addition, because the tweeter diaphragm assembly is located on the side of the bass diaphragm assembly away from the front acoustic cavity, the tweeter front cavity of the first vibration system is different from the front acoustic cavity of the second vibration system, thus adjusting high-frequency performance. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 This is an assembly diagram of a sound-generating module according to an embodiment of the present invention, omitting the first housing.

[0040] Figure 2This is an exploded view of a sound-generating module according to an embodiment of the present invention;

[0041] Figure 3 This is another exploded view of a sound-generating module according to an embodiment of the present invention;

[0042] Figure 4 This is a cross-sectional schematic diagram of a sound-generating module according to an embodiment of the present invention;

[0043] Figure 5 This is a partial cross-sectional schematic diagram of a sound-generating module according to an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the sound wave flow generated by a tweeter diaphragm assembly according to an embodiment of the present invention;

[0045] Figure 7 This is a plan view of a portion of the structure of a bass diaphragm assembly according to an embodiment of the present invention;

[0046] Figure 8 These are structural comparison diagrams of seven different shapes of retaining wall structures according to this utility model.

[0047] Explanation of icon numbers:

[0048]

[0049]

[0050] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] like Figures 1 to 8 As shown, this utility model proposes a sound-generating module 100, which includes a module housing 10, a sound-generating unit 20, and a retaining wall structure 30. The module housing 10 includes a first housing 13 and a second housing 14, which are interlocked to form an installation cavity 15. A sound outlet 11 is provided on the side of the module housing 10; specifically, a sound outlet 11 is provided on the front side of the module housing 10. The sound outlet 11 can be provided in the first housing 13 and / or the second housing 14 as needed. 4. The sound-generating unit 20 is disposed within the mounting cavity 15, and the sound-generating unit 20 and the module housing 10 cooperate to form a front sound cavity 12 communicating with the sound outlet 11. The sound-generating unit 20 includes a magnetic circuit system 21 and a first vibration system 22 and a second vibration system 23 corresponding to the magnetic circuit system 21. The first vibration system 22 includes a tweeter diaphragm assembly 222, and the second vibration system 23 includes a woofer diaphragm assembly 231. A corresponding tweeter diaphragm assembly 22 is provided on the side of the sound-generating unit 20 facing the front sound cavity 12. The high-frequency radiation zone 24 and the corresponding low-frequency radiation zone 25 of the low-frequency diaphragm assembly 231 are located between the high-frequency diaphragm assembly 222 and the module housing 10 along the vibration direction of the first vibration system 22 / second vibration system 23; the sound-emitting module 100 also includes a sound guide hole 43 opposite to the high-frequency diaphragm assembly 222, and the low-frequency diaphragm assembly 231 surrounds the sound guide hole 43; the baffle structure 30 is disposed in the front acoustic cavity 12, and the baffle structure 30 includes at least one part located near the sound outlet of the sound guide hole 43. The first shielding part 31 on one side of the hole 11 has a sound cavity 33 corresponding to and connected to the sound guide hole 43 on the side opposite to the sound outlet hole 11. Both ends of the first shielding part 31 along its extension direction form a sound transmission channel 35 corresponding to the bass radiation area 25 between it and the inner side of the module housing 10. Both sound transmission channels 35 are connected to the sound cavity 33. The sound waves generated by the tweeter diaphragm assembly 222 are transmitted into the sound cavity 33 through the sound guide hole 43, then propagated through the two sound transmission channels 35, and then transmitted out through the sound outlet hole 11.

[0055] The sound-generating module 100 of this utility model can be a speaker module, and can be applied in smart terminals, such as smartphones, smart tablets and other electronic devices. This embodiment uses a speaker module as an example for illustration.

[0056] Specifically, in the sound-generating module 100 of this utility model, the first housing 13 and the second housing 14 in the module housing 10 can be interlocked for easy assembly and disassembly. The first housing 13 and the second housing 14 interlock to form a mounting cavity 15, which facilitates the housing of the sound-generating unit 20. Furthermore, the sound-generating unit 20 and the module housing 10 cooperate to form a front sound cavity 12, which communicates with the sound outlet 11 to achieve sound output. The front sound cavity 12 is located on the upper side of the sound-generating unit 20. The vibration directions of the first vibration system 22 and the second vibration system 23 are both vertical or up-down, with the vertical direction being the height direction. On the side of the sound-generating unit 20 facing the front sound cavity 12, i.e., on the upper side of the sound-generating unit 20, there is a high-frequency radiation area 24 and a low-frequency radiation area 25 surrounding the high-frequency radiation area 24. The high-frequency radiation area 24 is positioned corresponding to the high-frequency diaphragm assembly 222 to achieve high-frequency function, and the low-frequency radiation area 25 is positioned corresponding to the low-frequency diaphragm assembly 231 to achieve low-frequency function.

[0057] Along the vertical direction, the bass diaphragm assembly 231 is located between the tweeter diaphragm assembly 222 and the module housing 10, that is, the bass diaphragm assembly 231 is located above the tweeter diaphragm assembly 222. Specifically, the bass diaphragm assembly 231 and the module housing 10 cooperate to form the front acoustic cavity 12, and the tweeter diaphragm assembly 222 is located below the bass diaphragm assembly 231 and does not occupy the volume of the front acoustic cavity 12. The sound-emitting module 100 also includes a sound guide hole 43, which is disposed opposite to the tweeter diaphragm assembly 222, and the bass diaphragm assembly 231 surrounds the sound guide hole 43.

[0058] The sound-generating module 100 of this utility model also includes a baffle structure 30, which is disposed in the front sound cavity 12. The baffle structure 30 includes at least a first blocking part 31, which is located on the side of the sound guide hole 43 near the sound outlet hole 11. A sound cavity 33 is formed on the side of the first blocking part 31 away from the sound outlet hole 11. The sound cavity 33 corresponds to and communicates with the sound guide hole 43. Both ends of the first blocking part 31 along its extension direction form a sound transmission channel 35 between it and the inner side of the module housing 10. The sound transmission channel 35 is correspondingly disposed with the bass radiation area 25. The two sound transmission channels 35 are respectively located on both sides of the sound cavity 33 and are both connected to the sound cavity 33.

[0059] With this configuration, a sound cavity 33 is constructed opposite to the sound outlet 11 through the barrier structure 30, and two sound transmission channels 35 are constructed on both sides of the sound cavity 33. This causes the sound waves generated by the tweeter diaphragm assembly 222 to be blocked by the barrier structure 30. The sound waves cannot directly propagate to the sound outlet 11, but instead enter the sound cavity 33 through the sound guide hole 43, then propagate through the two sound transmission channels 35, and finally exit through the sound outlet 11. This ensures that the performance of the audible frequency band is not reduced, while effectively extending the high frequency to the ultrasonic frequency band, that is, to the frequency band greater than 20KHz, effectively improving the performance of the ultrasonic frequency band, thereby realizing the ultrasonic ranging function within the sound generation module 100.

[0060] Furthermore, since the bass diaphragm assembly 231 and the module housing 10 cooperate to form the front acoustic cavity 12, and the tweeter diaphragm assembly 222 is located on the side of the bass diaphragm assembly 231 away from the front acoustic cavity 12, that is, the tweeter diaphragm assembly 222 is located below the bass diaphragm assembly 231, it does not occupy additional volume of the front acoustic cavity 12. The tweeter diaphragm assembly 222 can be installed by making full use of the space below the bass diaphragm assembly 231, thus eliminating the need to increase the product size in the height direction or increase the volume of the front acoustic cavity 12, improving high-frequency interference valleys, thereby improving high-frequency performance and enhancing sound quality, while not affecting low-frequency performance. The sound-generating module 100 still has excellent low-frequency performance. In addition, since the tweeter diaphragm assembly 222 is located below the bass diaphragm assembly 231, the tweeter front cavity 221 of the first vibration system 22 is different from the front acoustic cavity 12 of the second vibration system 23, thus adjusting the high-frequency performance.

[0061] It should be noted that, Figure 6 The double-dotted line with an arrow indicates the direction of sound wave flow.

[0062] Furthermore, the first shielding part 31 is provided with a second shielding part 32 at both ends along its extension direction. The first shielding part 31 and the two second shielding parts 32 together form a sound cavity 33. The sound cavity 33 has a sound passage hole 34 with a sound output direction different from that of the sound outlet hole 11. The two sound transmission channels 35 are located on both sides of the sound cavity 33 and are connected to the sound passage hole 34. The sound waves generated by the high-frequency diaphragm assembly 222 are transmitted into the sound cavity 33 through the sound guide hole 43, and then propagate through the sound passage hole 34, the two sound transmission channels 35, and then out through the sound outlet hole 11.

[0063] The baffle structure 30 forms a sound cavity 33 by enclosing a first shielding part 31 and two second shielding parts 32. The sound cavity 33 has a sound passage 34, which has a different sound output direction than the sound outlet 11; that is, the sound passage 34 is distributed on opposite sides of the sound outlet 11, thus improving the sound wave blocking effect of the baffle structure 30. By constructing a sound cavity 33 with the sound passage 34 and the sound outlet 11 distributed on opposite sides by the baffle structure 30, and constructing two sound transmission channels 35 located on both sides of the sound cavity 33, the sound waves generated by the tweeter are effectively blocked by the baffle structure 30. The sound waves cannot directly propagate to the sound outlet 11, but instead pass through the sound cavity 33 and the sound passage 34, then propagate through the two sound transmission channels 35 before exiting through the sound outlet 11. This ensures that the performance in the audible frequency range is not reduced, while further improving the effectiveness of extending the high frequencies into the ultrasonic frequency range and enhancing high-frequency performance.

[0064] Furthermore, the extension direction of the first shielding part 31 is set at an angle to the direction in which the sound wave propagates from the sound transmission channel 35 to the sound outlet 11. Both ends of the first shielding part 31 along its extension direction are connection ends. One end of each of the two second shielding parts 32 is connected to the two connection ends respectively, and the other ends of the two second shielding parts 32 form a sound outlet 34.

[0065] For example, such as Figure 2 and Figure 6 As shown, the sound outlet 11 is located on the front side. The direction of sound wave propagation from the sound transmission channel 35 to the sound outlet 11 is from back to front. The extension direction of the first blocking part 31 is set at an angle to the front-back direction, specifically in the left-right direction, so as to block the sound outlet 11 and prevent the sound waves generated by the tweeter unit from directly propagating to the sound outlet 11. In order to improve the blocking effect, the extension direction of the first blocking part 31 can be the same as the extension direction of the sound outlet 11. If the extension direction of the sound outlet 11 is left-right, then the extension direction of the first blocking part 31 is also left-right. Both ends of the first blocking part 31 along its extension direction are connecting ends. One end of each of the two second blocking parts 32 is connected to the two connecting ends respectively, and the other ends of the two second blocking parts 32 form a sound passage 34 so that the sound waves in the acoustic cavity 33 can enter the sound transmission channel 35 through the sound passage 34 and propagate. The structural design is reasonable.

[0066] The sound-generating module 100 of this utility model can flexibly adjust the retaining wall structure 30 according to actual needs.

[0067] like Figure 8As shown in (A), (B), (C), and (D), in one embodiment, two second blocking portions 32 extend from the two connecting ends in a direction away from the sound outlet 11, so that the sound passage 34 is opposite to and opposite to the sound outlet 11. Specifically, the two second blocking portions 32 extend from the two connecting ends in a direction away from the sound outlet 11, i.e., rearward, so that the sound passage 34 formed by the other ends of the two second blocking portions 32 is located on the rear side, opposite to and opposite to the sound outlet 11, to prevent the sound waves generated by the tweeter from directly propagating to the sound outlet 11.

[0068] like Figure 8 As shown in (E) and (F), in another embodiment, one of the second blocking portions 32 extends from the corresponding connecting end in a direction away from the sound outlet 11, and the other second blocking portion 32 extends from the corresponding connecting end in a direction away from the sound outlet 11 and then bends to extend towards another connecting end, so that the sound passages 34 are distributed on the side of the sound outlet 11. Specifically, one of the second blocking portions 32 extends from the corresponding connecting end in a direction away from the sound outlet 11, i.e., rearward, and the other second blocking portion 32 extends rearward from the corresponding connecting end and then bends to extend towards another connecting end, so that the sound passages 34 are distributed on the side of the sound outlet 11, preventing the sound waves generated by the tweeter from directly propagating to the sound outlet 11.

[0069] like Figure 5 As shown, the sound-generating module 100 of this utility model also includes a cover plate 40. Along the direction close to the front sound cavity 12, the cover plate 40 is disposed on the side of the tweeter diaphragm assembly 222 facing the front sound cavity 12. The cover plate 40 has a sound guide hole 43, and the position of the cover plate 40 with the sound guide hole 43 is connected to the inner edge of the woofer diaphragm assembly 231. The outer edge of the cover plate 40 is connected to the magnetic circuit system 21.

[0070] Specifically, the cover plate 40 is positioned above the tweeter diaphragm assembly 222, and it can be understood that the cover plate 40 and the tweeter diaphragm assembly 222 form a tweeter front cavity 221. The cover plate 40 has a sound guide hole 43, and the position of the sound guide hole 43 on the cover plate 40 is connected to the inner edge of the bass diaphragm assembly 231 to realize the assembly of the cover plate 40 and the bass diaphragm assembly 231. The outer edge of the cover plate 40 is connected to the magnetic circuit system 21 to realize the assembly of the cover plate 40 and the magnetic circuit system 21.

[0071] Furthermore, the inner edge of the bass diaphragm assembly 231 matches the shape of the sound guide hole 43, and the inner edge of the bass diaphragm assembly 231 has a closed annular structure. The first shielding part 31 and the two second shielding parts 32 form a non-closed annular structure that matches the shape of the inner edge of the bass diaphragm assembly 231, so as to effectively and multi-directionally shield the sound waves generated by the tweeter diaphragm assembly 222 by surrounding the outer edge of the sound guide hole 43 with the barrier structure 30.

[0072] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, in one embodiment, the inner edge of the bass diaphragm assembly 231 has a square closed structure, and the first shielding part 31 and the two second shielding parts 32 form a square non-closed structure to effectively improve the ultrasonic band performance and high frequency performance of the square speaker.

[0073] like Figure 7 and Figure 8 As shown in (A), (B), (C), and (D), in one embodiment, the inner edge of the bass diaphragm assembly 231 includes two first connecting edges 2314 and two second connecting edges 2315 connected between the two first connecting edges 2314. The two first connecting edges 2314 are disposed corresponding to the sound outlet 11, and a first blocking part 31 is disposed near one of the first connecting edges 2314 near the sound outlet 11. Two second blocking parts 32 are respectively disposed on the two second connecting edges 2315. The extension length of the second connecting edge 2315 is L2, and the extension length of the second blocking part 32 is a2, wherein 0.1≤a2 / L2≤1.

[0074] Specifically, the two first connecting edges 2314 and the two second connecting edges 2315 of the bass diaphragm assembly 231 form a square inner edge. The two first connecting edges 2314 are positioned corresponding to the sound outlet 11 and extend in the left-right direction, and are positioned opposite each other in the front-back direction. The two second connecting edges 2315 also extend in the front-back direction and are positioned opposite each other in the left-right direction. The first blocking part 31 is positioned on the first connecting edge 2314 near the sound outlet 11, that is, the first blocking part 31 is positioned on the front of the first connecting edge 2314 and matches the shape of the first connecting edge 2314. The two second blocking parts 32 are respectively positioned on the two second connecting edges 2315, and the shapes of the second blocking parts 32 match the corresponding second connecting parts, so as to form a sound passage 34 that is opposite to and arranged opposite to the sound outlet 11. The structural design is reasonable.

[0075] Understandably, the extension length of the first shielding portion 31 is the same as the extension length of the corresponding first connecting edge 2314. The extension length of the second connecting edge 2315 is L2, and the extension length of the second shielding portion 32 is a2. In a preferred embodiment, 0.1 ≤ a2 / L2 ≤ 1, that is, the ratio of the extension length of the second shielding portion 32 to the extension length of the second connecting edge 2315 is 0.1 to 1. Optionally, a2 / L2 can be 0.3, 0.5, 0.8, and 1, etc., thereby achieving effective shielding of sound waves in the acoustic cavity 33 and preventing the sound waves generated by the tweeter diaphragm assembly 222 from directly propagating to the sound outlet 11.

[0076] Furthermore, the extension lengths of the two second shielding parts 32 may be the same or different, so that the retaining wall structure 30 can be flexibly set according to actual usage requirements.

[0077] like Figure 7 and Figure 8 As shown in (E) and (F), in another embodiment, the inner edge of the bass diaphragm assembly 231 includes two first connecting edges 2314 and two second connecting edges 2315 connected between the two first connecting edges 2314. The two first connecting edges 2314 are disposed corresponding to the sound outlet 11. A first blocking portion 31 is disposed near one of the first connecting edges 2314 close to the sound outlet 11. One of the second blocking portions 32 is disposed on the same side of one of the second connecting edges 2315, and the other second blocking portion 32 includes a first blocking segment 321 and a second blocking segment 322. The first blocking segment 322 is disposed on another second connecting edge 2315 and connected to the first blocking part 31. The second blocking segment 322 is disposed on another first connecting edge 2314 and connected to the end of the second blocking segment 322 away from the first blocking part 31. The extension length of the first connecting edge 2314 is L1, the extension length of the second connecting edge 2315 is L2, the extension length of the first blocking segment 321 is b1, and the extension length of the second blocking segment 322 is b2, wherein 0.1≤b1 / L1≤1.2, and b2=L2.

[0078] Specifically, the two first connecting edges 2314 and the two second connecting edges 2315 of the bass diaphragm assembly 231 form a square inner edge. The two first connecting edges 2314 are arranged corresponding to the sound outlet 11 and extend in the left-right direction and are arranged opposite each other in the front-back direction. The two second connecting edges 2315 extend in the front-back direction and are arranged opposite each other in the left-right direction. The first shielding part 31 is disposed on the first connecting edge 2314 near the sound outlet 11, that is, the first shielding part 31 is disposed on the first connecting edge 2314 on the front side and matches the shape of the first connecting edge 2314. One second shielding part 32 is disposed on a second connecting edge 2315 on the same side. The other second shielding part 32 includes a first shielding section 321 and a second shielding section 322. The second shielding section 322 is disposed on another second connecting edge 2315 and connected to the first shielding part 31. The first shielding section 321 is disposed on the first connecting edge 2314 on the rear side and connected to the end of the second shielding section 322 away from the first shielding part 31, so that the sound outlet 34 is distributed on the side of the sound outlet 11, and the structural design is reasonable. The extension length of the first connecting edge 2314 is L1, the extension length of the second connecting edge 2315 is L2, the extension length of the first blocking segment 321 is b1, and the extension length of the second blocking segment 322 is b2. In the preferred embodiment, 0.1 ≤ b1 / L1 ≤ 1.2, b2 = L2, that is, the ratio of the extension length of the first blocking segment 321 to the extension length of the first connecting edge 2314 is 0.1 to 1.2. Optionally, b1 / L1 can be 0.1, 0.3, 0.5, 0.7, 0.9, 1.1, and 1.2, etc. The extension length of the second blocking segment 322 is the same as the extension length of the second connecting edge 2315, and the structural design is reasonable.

[0079] In other embodiments, the inner edge of the bass diaphragm assembly 231 is a circular closed structure, and the first shielding portion 31 and the two second shielding portions 32 form a circular non-closed structure to effectively improve the ultrasonic band performance and high frequency performance of the circular speaker.

[0080] In some embodiments, such as Figure 7 and Figure 8 As shown in (G), the barrier structure 30 includes only a first blocking part 31. The inner edge of the bass diaphragm assembly 231 includes two first connecting edges 2314 and two second connecting edges 2315 connected between the two first connecting edges 2314. The two first connecting edges 2314 are provided corresponding to the sound outlet 11. The first blocking part 31 is provided near one of the first connecting edges 2314 of the sound outlet 11. The extension length of the first blocking part 31 can be flexibly set according to actual usage requirements. The extension length of the first blocking part 31 may be the same as or different from the extension length of its corresponding first connecting edge 2314.

[0081] like Figure 5As shown, in the sound-generating module 100 of this utility model, a first horizontal support portion 41 is formed on the outer edge of the cover plate 40, and a second horizontal support portion 42 is formed at the center of the cover plate 40. The second horizontal support portion 42 is located on the side of the first horizontal support portion 41 that is close to the bass diaphragm assembly 231, that is, the second horizontal support portion 42 is located on the upper side of the first horizontal support portion 41. The first horizontal support portion 41 is supported and fixed to the magnetic circuit system 21 to realize the assembly with the magnetic circuit system 21. The second horizontal support portion 42 is arranged around the sound guide hole 43, and the structure is reasonably designed.

[0082] In one embodiment, at least a portion of the retaining wall structure 30 is disposed on the second horizontal support portion 42, so as to support the retaining wall structure 30 by means of the cover plate 40. The inner edge of the bass diaphragm assembly 231 is fixed to the second horizontal support portion 42, so as to support the bass diaphragm assembly 231 by means of the cover plate 40.

[0083] like Figure 5 As shown, in another embodiment, the inner edge of the bass diaphragm assembly 231 is sandwiched between the retaining wall structure 30 and the second horizontal support portion 42, so as to support the bass diaphragm assembly 231 and the retaining wall structure 30 through the cover plate 40.

[0084] In the sound-generating module 100 of this utility model, the baffle structure 30 abuts against the bass diaphragm assembly 231 and the inner side of the module housing 10 corresponding to the bass diaphragm assembly 231.

[0085] Specifically, when the barrier structure 30 only includes the first shielding part 31, the bottom of the first shielding part 31 abuts against the inner edge of the bass diaphragm assembly 231, and the top of the first shielding part 31 abuts against the inner side of the module housing 10 corresponding to the bass diaphragm assembly 231. This ensures seamless abutment between the barrier structure 30 and the inner side of the bass diaphragm assembly 231 and the module housing 10 in the height direction, ensuring that the sound waves in the acoustic cavity 33 will not leak due to gaps, thereby ensuring that the high frequencies are effectively extended to the ultrasonic frequency band and improving high-frequency performance.

[0086] When the barrier structure 30 includes a first shielding part 31 and two second shielding parts 32, the bottom of the first shielding part 31 and the bottom of the second shielding part 32 abut against the inner edge of the bass diaphragm assembly 231, and the top of the first shielding part 31 and the top of the second shielding part 32 abut against the inner side of the module housing 10 corresponding to the bass diaphragm assembly 231. This ensures that the barrier structure 30 abuts against the bass diaphragm assembly 231 and the inner side of the module housing 10 in the height direction, ensuring that the sound waves in the acoustic cavity 33 will not leak due to gaps, thereby ensuring that the high frequencies are effectively extended to the ultrasonic frequency band and improving high-frequency performance.

[0087] In one embodiment, the retaining wall structure 30 is made of metal or plastic, which facilitates material sourcing and manufacturing. When the retaining wall structure 30 is made of metal or plastic, in a preferred embodiment, the retaining wall structure 30 is integrally formed with the module housing 10, eliminating assembly gaps, removing assembly errors, and facilitating manufacturing.

[0088] In another embodiment, the retaining wall structure 30 is made of sound-absorbing cotton. The sound-absorbing cotton is environmentally friendly and durable, and is easy to process. Furthermore, the high acoustic impedance of the sound-absorbing cotton can reduce high-frequency response jitter, resulting in better product sound quality.

[0089] In the sound-generating module 100 of this utility model, the first vibration system 22 and the second vibration system 23 are coaxially arranged, which not only facilitates manufacturing, but also makes it easier for the sound guide hole 43 to be aligned with the inner edge of the bass diaphragm assembly 231 and the tweeter diaphragm assembly 222, so that the sound waves generated by the tweeter diaphragm assembly 222 can be transmitted from the sound guide hole 43 into the sound cavity 33.

[0090] In one embodiment, the magnetic circuit system 21 forms a first magnetic gap 211; the tweeter diaphragm assembly 222 includes a tweeter diaphragm 2221 and a tweeter reinforcement portion 2222 connected to the inner edge of the tweeter diaphragm 2221; the first vibration system 22 also includes a tweeter voice coil 223, one end of which is connected to the tweeter diaphragm assembly 222, and the other end of which extends away from the front acoustic cavity 12 and is disposed corresponding to the first magnetic gap 211.

[0091] Specifically, the upper end of the tweeter voice coil 223 is connected to the position where the inner edge of the tweeter diaphragm 2221 connects to the tweeter reinforcement part 2222, and the lower end of the tweeter voice coil 223 extends downward away from the front acoustic cavity 12. The lower end of the tweeter voice coil 223 can be inserted into the first magnetic gap 211 or not, and can cut the magnetic field lines to achieve up-and-down vibration, thereby driving the tweeter diaphragm assembly 222 to vibrate up and down together to achieve vibration and sound generation.

[0092] In one embodiment, the magnetic circuit system 21 further forms a second magnetic gap 212; the bass diaphragm assembly 231 includes a bass reinforcement portion 2311, an inner bass ring 2312, and an outer bass ring 2313 surrounding the inner bass ring 2312, the bass reinforcement portion 2311 being connected to the outer edge of the inner bass ring 2312 and the outer edge of the outer bass ring 2313; the baffle structure 30 is connected to the inner edge of the inner bass ring 2312 facing the front acoustic cavity 12; the second vibration system 23 further includes a bass voice coil 232, the bass voice coil 232 being surrounded by the tweeter diaphragm assembly 222, one end of the bass voice coil 232 being connected to one side of the bass diaphragm assembly 231, and the other end of the bass voice coil 232 extending away from the front acoustic cavity 12 and inserted into the second magnetic gap 212.

[0093] Specifically, the baffle structure 30 is connected to the upper side of the inner edge of the inner bass surround 2312. The bass voice coil 232 can surround the tweeter diaphragm assembly 222, allowing the tweeter diaphragm assembly 222 to utilize the space within the second vibration system 23 without additionally occupying the volume of the front acoustic cavity 12, thus improving high-frequency performance and enhancing sound quality. The upper end of the bass voice coil 232 is connected to the lower side of the bass diaphragm, specifically to the lower side of the bass reinforcement part 2311. The lower end of the bass voice coil 232 extends downward and is inserted into the second magnetic gap 212 to cut magnetic field lines and achieve vertical vibration, thereby driving the bass diaphragm assembly 231 to vibrate vertically and produce sound.

[0094] Understandably, such as Figure 3 As shown, the driver unit 20 also includes a centering support 26 and a support shell 27. The centering support 26 connects the bass voice coil 232 and the support shell 27 to prevent polarization. The inner edge of the outer bass surround 2313 can be connected to the support shell 27 to assemble the bass diaphragm assembly 231 with the support shell 27. The bottom of the driver unit 20 can be bonded to the second housing 14 with foam 28. The second housing 14 has damping holes and damping plates 29 for sealing the damping holes are installed.

[0095] like Figures 3 to 5 As shown, in one embodiment, the magnetic circuit system 21 includes a magnetic yoke 213 and a central magnetic part 214 and a side magnetic part 215 disposed on the magnetic yoke 213. The central magnetic part 214 includes a first magnetic part 2141 and a second magnetic part 2142 disposed on the outer periphery of the first magnetic part 2141. A first magnetic gap 211 is formed between the first magnetic part 2141 and the second magnetic part 2142, and a second magnetic gap 212 is formed between the second magnetic part 2142 and the side magnetic part 215. This allows the first vibration system 22 and the second vibration system 23 to share the magnetic circuit system 21, which simplifies the structure of the sound-generating module 100, saves the volume of the sound-generating module 100, and facilitates the miniaturization design of the sound-generating module 100. Specifically, the first magnetic part 2141 includes a first magnet 21411 and a first magnetic plate 21412 disposed on the upper side of the first magnet 21411, the second magnetic part 2142 includes a second magnet 21421 and a second magnetic plate 21422 disposed on the upper side of the second magnet 21421, and the side magnetic part 215 includes a side magnet 2151. The structure is reasonably designed.

[0096] This utility model also proposes an electronic device, which includes a housing and a sound-emitting module 100 as described above housed within the housing. This electronic device can be a smart terminal, such as a smartphone or tablet. The specific structure of this electronic device is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0097] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A sound production module, comprising: The sound production module comprises: a module housing comprising a first housing and a second housing, the first housing and the second housing being buckled to each other to form a mounting cavity, a sound outlet hole being formed in a side of the module housing; a sound production unit arranged in the mounting cavity, and the sound production unit and the module housing cooperating to form a front sound cavity in communication with the sound outlet hole, the sound production unit comprising a magnetic circuit system, and a first vibration system and a second vibration system arranged correspondingly to the magnetic circuit system; the first vibration system comprising a high-pitched diaphragm assembly, and the second vibration system comprising a low-pitched diaphragm assembly; a high-pitched radiation area corresponding to the high-pitched diaphragm assembly and a low-pitched radiation area corresponding to the low-pitched diaphragm assembly being formed on a side of the sound production unit facing the front sound cavity; along a vibration direction of the first vibration system / the second vibration system, the low-pitched diaphragm assembly is located between the high-pitched diaphragm assembly and the module housing; the sound production module further comprises a sound guide hole opposite to the high-pitched diaphragm assembly, and the low-pitched diaphragm assembly surrounds the sound guide hole; a retaining wall structure arranged in the front sound cavity, the retaining wall structure comprising at least a first shielding part located on a side of the sound guide hole close to the sound outlet hole, a sound cavity corresponding to and in communication with the sound guide hole being formed on a side of the first shielding part away from the sound outlet hole, and both ends of the first shielding part along its extending direction forming sound transmission channels corresponding to the low-pitched radiation area between the inner side of the module housing and the module housing, both the sound transmission channels being in communication with the sound cavity, and sound waves generated by the high-pitched diaphragm assembly being transmitted into the sound cavity through the sound guide hole, then being transmitted through the two sound transmission channels, and finally being transmitted out through the sound outlet hole.

2. The sound production module of claim 1, wherein the sound production module is configured to produce sound in response to the user's voice. Both ends of the first shielding part along its extending direction are provided with second shielding parts, the first shielding part and the two second shielding parts jointly forming the sound cavity, the sound cavity being provided with a sound passing hole different from the sound outlet hole in sound outlet direction, both the sound transmission channels being located on two sides of the sound cavity and being in communication with the sound passing hole, and sound waves generated by the high-pitched diaphragm assembly being transmitted into the sound cavity through the sound guide hole, then being transmitted through the two sound transmission channels from the sound passing hole, and finally being transmitted out through the sound outlet hole.

3. The sound production module of claim 2, wherein the at least one sound production element is a piezoelectric element. The extending direction of the first shielding part is arranged at an angle with the direction of sound wave transmission from the sound transmission channel to the sound outlet hole, both ends of the first shielding part along its extending direction are connecting ends, one end of each of the two second shielding parts is connected with the two connecting ends respectively, and the other end of each of the two second shielding parts encloses the sound passing hole.

4. The sound production module of claim 3, wherein the sound production module is configured to produce the sound in response to the user input. The two second shielding parts are respectively formed by extending from the two connecting ends in a direction away from the sound outlet hole, so that the sound passing hole is arranged opposite to and relative to the sound outlet hole.

5. The sound production module of claim 3, wherein the sound production module is configured to produce the sound in response to the user's voice. One of the second shielding parts is formed by extending from the corresponding connecting end in a direction away from the sound outlet hole, and the other second shielding part is formed by extending from the corresponding connecting end in a direction away from the sound outlet hole and then being bent to extend towards the other connecting end, so that the sound passing hole is distributed on a side of the sound outlet hole.

6. The sound production module of claim 2, wherein the sound production module is configured to produce sound in response to the user's voice. The sound production module further comprises a cover plate, which is arranged on the side of the high-frequency diaphragm assembly facing the front sound cavity in the direction close to the front sound cavity, the cover plate is provided with the sound guide hole, and the position of the sound guide hole of the cover plate is connected with the inner edge of the low-frequency diaphragm assembly, and the outer edge of the cover plate is connected with the magnetic circuit system.

7. The sound production module of claim 6, wherein the sound production module is configured to produce the sound in response to the user's voice. The inner edge of the low-frequency diaphragm assembly is matched with the shape of the sound guide hole, the inner edge of the low-frequency diaphragm assembly is in a ring-shaped closed structure, and the first shielding part and the two second shielding parts form a ring-shaped non-closed structure matched with the shape of the inner edge of the low-frequency diaphragm assembly.

8. The sound production module of claim 7, wherein the at least one sound production element is a diaphragm. The inner edge of the low-frequency diaphragm assembly is in a square closed structure, and the first shielding part and the two second shielding parts form a square non-closed structure.

9. The sound production module of claim 8, wherein The inner edge of the low-frequency diaphragm assembly comprises two first connecting edges and two second connecting edges connected between the two first connecting edges, wherein the two first connecting edges are arranged corresponding to the sound outlet hole, and the first shielding part is arranged on one of the first connecting edges close to the sound outlet hole; and the two second shielding parts are arranged on the two second connecting edges, respectively. The extension length of the second connecting edge is L2, the extension length of the second shielding part is a2, and 0.1≤a2 / L2≤1; and / or, the extension lengths of the two second shielding parts are the same or different.

10. The sound production module of claim 8, wherein The inner edge of the low-frequency diaphragm assembly comprises two first connecting edges and two second connecting edges connected between the two first connecting edges, wherein the two first connecting edges are arranged corresponding to the sound outlet hole, and the first shielding part is arranged on one of the first connecting edges close to the sound outlet hole; one of the second shielding parts is arranged on one of the second connecting edges on the same side, and the other of the second shielding parts comprises a first shielding segment and a second shielding segment, the second shielding segment is arranged on the other of the second connecting edges and connected with the first shielding part, and the first shielding segment is arranged on the other of the first connecting edges and connected with the second shielding segment away from the first shielding part. The extension length of the first connecting edge is L1, the extension length of the second connecting edge is L2, the extension length of the first shielding segment is b1, and the extension length of the second shielding segment is b2, wherein 0.1≤b1 / L1≤1.2 and b2=L2.

11. The sound production module of claim 6, wherein the sound production module is configured to produce sound in response to the user's voice. The outer edge of the cover plate is formed with a first horizontal support part, and the central position of the cover plate is formed with a second horizontal support part located on the side of the first horizontal support part close to the low-frequency diaphragm assembly, the first horizontal support part is fixed to the magnetic circuit system, and the second horizontal support part is arranged around the sound guide hole, wherein At least part of the barrier wall structure is arranged on the second horizontal support part; And / or, the inner edge of the low-frequency diaphragm assembly is fixed to the second horizontal support part; Or, the inner edge of the low-frequency diaphragm assembly is clamped between the barrier wall structure and the second horizontal support part.

12. The sound production module of any one of claims 1-11, wherein, The baffle structure is abutted between the bass diaphragm assembly and an inner side surface of the module shell corresponding to the bass diaphragm assembly.

13. The sound production module according to any one of claims 1-11, characterized in that, the baffle structure is made of metal or plastic; and / or the baffle structure is integrally formed with the module shell; or, the baffle structure is made of sound-absorbing cotton.

14. The sound production module according to any one of claims 1-11, characterized in that, the magnetic circuit system is formed with a first magnetic gap; the high-frequency diaphragm assembly comprises a high-frequency diaphragm and a high-frequency reinforcing portion connected to an inner edge of the high-frequency diaphragm; the first vibration system further comprises a high-frequency voice coil, one end of the high-frequency voice coil being connected to the high-frequency diaphragm assembly, and the other end of the high-frequency voice coil extending away from the front sound cavity and being disposed corresponding to the first magnetic gap.

15. The sound production module according to claim 14, characterized in that, the magnetic circuit system is further formed with a second magnetic gap; the bass diaphragm assembly comprises a bass reinforcing portion, an inner bass ring, and an outer bass ring surrounding the inner bass ring, the bass reinforcing portion being connected to outer edges of the inner bass ring and the outer bass ring; the baffle structure being connected to an inner edge of the inner bass ring on a side facing the front sound cavity; the second vibration system further comprises a bass voice coil, the bass voice coil surrounding the high-frequency diaphragm assembly, one end of the bass voice coil being connected to one side of the bass diaphragm assembly, and the other end of the bass voice coil extending away from the front sound cavity and being inserted into the second magnetic gap.

16. The sound production module of claim 15, wherein the at least one sound production element is a diaphragm. the magnetic circuit system comprises a magnetic yoke, a center magnetic portion and a side magnetic portion provided in the magnetic yoke, the center magnetic portion comprising a first magnetic portion and a second magnetic portion provided at an outer periphery of the first magnetic portion, wherein the first magnetic portion and the second magnetic portion form the first magnetic gap therebetween, and the second magnetic portion and the side magnetic portion form the second magnetic gap therebetween.

17. An electronic device, comprising: the electronic device comprises a shell and the sound production module according to any one of claims 1-16 received in the shell.

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