Sounding device and electronic equipment

Abstract

The invention discloses a sound production device and electronic equipment, and relates to the technical field of electro-acoustic transformation.The sound production device comprises a shell and a sound production monomer, a clamping groove is formed in the inner wall of the shell, and a notch of the clamping groove faces inwards; the single sounding body comprises a basin stand and a folding ring, the folding ring comprises a first connecting part, a folding ring part and a second connecting part which are sequentially connected from inside to outside, a clamping edge is formed on the peripheral edge of the basin stand, the second connecting part and the clamping edge form a clamping assembly, and the clamping assembly extends into the clamping groove and is clamped and matched with the clamping groove. According to the technical scheme, the clamping groove with the inward notch is formed in the shell of the sound production device and matched with the clamping assembly in the clamping mode, so that the second connecting part and the clamping edge are limited and fixed at the same time through the clamping groove, the folding ring and the basin stand can be fixed to the shell without glue, and the folding ring and the basin stand cannot volatilize or generate smell without glue bonding; therefore, the user experience and health are not affected, and the method is more environment-friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustic conversion, and in particular to a sound-generating device and an electronic device. Background Art

[0002] The cone and the folding ring are important vibrating components in the sound-generating device. The cone is connected to the voice coil and swings driven by the voice coil to compress the air molecules in front of the cone to form sound waves. The folding ring is connected to the outer periphery of the cone and to the cone frame. It is responsible for limiting the movement range of the cone and providing a certain elastic reset force so that the cone can quickly return to its original position after sounding. The cone frame is connected to the outer casing to support and limit the overall structure of the sound-generating device.

[0003] In the prior art, the connection method between the folding ring and the basin frame, and the connection method between the basin frame and the outer shell are usually bonded together by high-strength glue. However, the glue volatilizes and produces odor, which can easily cause the sound device to fail in the reliability odor test. At the same time, the odor produced by the glue bonding not only affects the user experience, but also has an impact on the user's health, and there is also the problem of being environmentally unfriendly. Summary of the invention

[0004] The main purpose of the present invention is to provide a sound-generating device and an electronic device, aiming to solve the problems in the prior art of using glue to bond, which affects the user experience, affects the user's health and is not environmentally friendly. To achieve the above purpose, the sound-generating device proposed by the present invention includes:

[0005] A shell, wherein the inner wall of the shell is provided with a card slot, and the notch of the card slot is arranged inwardly;

[0006] The sound-emitting unit includes a basin frame and a folding ring, the folding ring includes a first connecting part, a folding ring part and a second connecting part which are sequentially connected from the inside to the outside, the outer peripheral edge of the basin frame forms a snap-fitting edge, the second connecting part and the snap-fitting edge constitute a snap-fitting assembly, the snap-fitting assembly extends into the snap-fitting slot and snap-fits with the snap-fitting slot.

[0007] In one embodiment, a gap is formed between the clamping assembly and the slot wall of the clamping slot, and an elastic buffer pad is provided between the clamping assembly and the slot wall of the clamping slot, and the elastic buffer pad fills the gap.

[0008] In one embodiment, the gap includes a first gap, a second gap and a third gap that are connected in sequence, and the elastic buffer pad includes a first buffer segment, a second buffer segment and a third buffer segment. The first buffer segment, the second buffer segment and the third buffer segment are connected or abutted in sequence to form a U-shaped elastic buffer pad with an opening facing inward, and the first buffer segment, the second buffer segment and the third buffer segment are filled in the first gap, the second gap and the third gap respectively and one by one.

[0009] In one embodiment, the outer wall of the first buffer section and / or the outer wall of the second buffer section and / or the outer wall of the third buffer section is provided with a pressing piece, and the pressing piece is used to press against the slot wall of the card slot.

[0010] In one embodiment, an abutting groove is formed on the outer wall of the first buffer section to form the abutting member, and an abutting protrusion abutting against the abutting groove is formed on the groove wall of the clamping groove corresponding to the abutting groove;

[0011] And / or, the outer wall of the second buffer section is provided with a second protrusion to form the abutting member;

[0012] And / or, the outer wall of the third buffer section is provided with a third protrusion to form the abutting member.

[0013] In one embodiment, the first buffer section, the second buffer section and the third buffer section are flexible cushion blocks that are integrally formed.

[0014] In one embodiment, the first buffer segment and the second buffer segment are integrally formed flexible pads, the third buffer segment is a pressing block, the pressing block is a hard pad, and the pressing block abuts against one end of the second buffer segment away from the first buffer segment.

[0015] In one embodiment, a flexible gasket is provided between the pressing block and the slot wall of the slot and between the pressing block and the second connecting portion.

[0016] In one embodiment, a clamping block is formed on the outer peripheral edge of the second connecting portion, and the clamping edge includes an abutting portion and a bending portion connected in sequence from the inside to the outside, and the bending portion is bent from the abutting portion toward the second connecting portion, and a placement groove is formed between the abutting portion, the bending portion and the elastic buffer pad, and the clamping block extends into the placement groove and is clamped and matched with the placement groove.

[0017] In one embodiment, the blocking block has a first abutment plane and a second abutment plane, the first abutment plane abuts against the inner wall of the elastic buffer pad, and the second abutment plane abuts against the abutment portion; the inner wall surface of the elastic buffer pad abutting against the first abutment plane and the inner wall surface of the abutment portion abutting against the second abutment plane are both planes, the outer wall surface of the connection between the abutment portion and the bending portion is an arc surface, the elastic buffer pad forms an arc-shaped wall at the position corresponding to the arc surface, the arc-shaped wall matches the shape of the arc surface and abuts against each other.

[0018] In one embodiment, the sound-emitting unit further includes a cone, and the outer peripheral edge of the cone overlaps with the first connecting portion to form a composite layer, and the composite layer is ultrasonically welded to fuse the cone and the folding ring.

[0019] In one embodiment, the melting point of the fold at the composite layer is lower than the melting point of the cone at the composite layer.

[0020] In one embodiment, the sound unit also includes a voice coil and a magnetic circuit system, the inner peripheral edge of the cone is connected to the voice coil, the inner peripheral edge of the basin frame is connected to the magnetic circuit system, the magnetic circuit system forms a magnetic gap, and the voice coil is suspended in the magnetic gap.

[0021] In one embodiment, the sound unit also includes a centering support plate, the outer peripheral edge of the centering support plate is connected to the basin frame, the voice coil is provided with a plurality of clamping holes spaced apart along its circumference, and the inner peripheral edge of the centering support plate is provided with a plurality of clamping parts spaced apart along its circumference, and the number of the clamping parts is consistent with the number of the clamping holes and is snap-fitted in a one-to-one manner.

[0022] In one embodiment, the magnetic circuit system includes a U iron and a magnet, wherein the U iron is arranged outside the magnet and forms the magnetic gap with the magnet, and a magnetic conductive plate is arranged on one side of the magnet facing the cone.

[0023] In one embodiment, a limiting groove is provided on the inner peripheral edge of the basin frame, the notch of the limiting groove is arranged inwardly, a limiting block is provided on the outer wall of the U iron corresponding to the limiting groove, and the limiting groove is plugged into and matched with the limiting block.

[0024] The present invention further provides an electronic device, wherein the electronic device is provided with the above-mentioned sound-generating device.

[0025] The technical solution of the present invention is to open a slot with an inward notch on the shell of the sound-emitting device, and form a snap-fit ​​assembly with the second connecting portion of the outer peripheral edge of the folding ring and the snap-fitting edge of the outer peripheral edge of the basin frame, so that the snap-fitting assembly is snap-fitted with the slot, thereby limiting and fixing the second connecting portion and the snap-fitting edge at the same time through the slot, so that the folding ring and the basin frame can be fixed to the shell without glue, and no volatilization and odor will be generated without glue bonding, thereby improving the user experience, without affecting the user's health, and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 A schematic structural diagram of an embodiment of a sound-generating device provided by the present invention;

[0028] Figure 2 A schematic diagram of the assembly of the card slot and the card connection assembly of the sound-generating device provided by the present invention;

[0029] Figure 3 A disassembled schematic diagram of the card slot and the card connection assembly of the sound-generating device provided by the present invention;

[0030] Figure 4 A partial structural schematic diagram of the voice coil and centering support of the sound-generating device provided by the present invention;

[0031] Figure 5 A schematic structural diagram of a card slot and a card connection assembly of another embodiment of the sound-generating device provided by the present invention.

[0032] Description of Figure Numbers:

[0033] 100, sound-generating device; 1, housing; 11, slot; 111, abutment protrusion; 112, first notch; 2, sound-generating unit; 21, basin frame; 211, clamping edge; 212, abutment portion; 213, bending portion; 214, placement groove; 215, limiting groove; 22, folding ring; 221, first connecting portion; 222, folding ring portion; 223, second connecting portion; 224, clamping block; 225, first abutment plane; 226, second abutment plane; 23, clamping assembly; 231, gap; 232, first gap; 233, second gap; 234, The third gap; 24, elastic buffer pad; 240, opening; 241, first buffer section; 242, second buffer section; 243, third buffer section; 244, abutment; 245, abutment groove; 246, second protrusion; 247, third protrusion; 248, pressure block; 249, flexible gasket; 25, plane wall; 251, arc wall; 26, cone basin; 27, voice coil; 271, snap-on hole; 28, magnetic circuit system; 281, U iron; 282, magnet; 283, magnetic conductive plate; 284, limit block; 29, centering support plate; 291, snap-on part.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] In the prior art, the connection between the folding ring and the basin frame, as well as the basin frame and the shell, are usually bonded together with high-strength glue. However, the glue volatilizes and produces odor, which can easily cause the sound device to fail in the reliability odor test. At the same time, the odor produced by the glue bonding not only affects the user experience, but also has an impact on the user's health, and there is also the problem of being environmentally unfriendly.

[0039] In order to solve the above problems, the present invention provides a sound generating device 100 .

[0040] Please combine Figure 1 and Figure 2 ,in, Figure 1 A schematic structural diagram of an embodiment of a sound-generating device provided by the present invention; Figure 2 The present invention provides an assembly diagram of a card slot and a card connection component of a sound-generating device. In one embodiment of the present invention, the sound-generating device 100 includes a housing 1 and a sound-generating unit 2. The inner wall of the housing 1 is provided with a card slot 11, and the notch of the card slot 11 is arranged inwardly. The sound-generating unit 2 includes a basin frame 21 and a folding ring 22. The folding ring 22 includes a first connecting portion 221, a folding ring portion 222, and a second connecting portion 223 which are sequentially connected from the inside to the outside. The outer peripheral edge of the basin frame 21 forms a card connection edge 211. The second connecting portion 223 and the card connection edge 211 constitute a card connection component 23. The card connection component 23 extends into the card slot 11 and is card-engaged with the card slot 11.

[0041] It can be understood that the notch of the card slot 11 is the first notch 112, and the inner side of the first notch 112 facing inward refers to the side of the shell 1 facing the sound-emitting device 100, that is, the side of the inner cavity of the shell 1, and the inner side and outer side of the folding ring 22 from the inside to the outside are respectively the side of the folding ring 22 facing the center of the circle and the side where the outer periphery of the folding ring 22 is located.

[0042] The technical solution of the present invention is to open a slot 11 with an inward notch on the shell 1 of the sound-emitting device 100, and to form a snap-fit ​​assembly 23 with the second connecting portion 223 of the outer peripheral edge of the folding ring 22 and the snap-fit ​​edge 211 of the outer peripheral edge of the basin frame 21, so that the snap-fit ​​assembly 23 is snap-fitted with the slot 11, so that the second connecting portion 223 and the snap-fit ​​edge 211 are simultaneously limited and fixed by the slot 11, so that the folding ring 22 and the basin frame 21 can be fixed to the shell 1 without glue. Without glue bonding, no volatilization will occur to produce odor, thereby not affecting the user experience, not affecting the user's health, and being more environmentally friendly.

[0043] See also Figure 2 In one embodiment, a gap 231 is formed between the snap-fit ​​assembly 23 and the groove wall of the slot 11, and an elastic buffer pad 24 is provided between the snap-fit ​​assembly 23 and the groove wall of the slot 11, and the elastic buffer pad 24 fills the gap 231. It can be understood that when the sound-generating device 100 is working, the cone 26 and the folding ring 22 will generate certain vibrations. If these vibrations are directly transmitted to the housing 1, the housing 1 may resonate and generate unnecessary noise or distortion. Therefore, the gap 231 is filled with the elastic buffer pad 24, so that the snap-fit ​​assembly 23 and the elastic buffer pad 24 are pressed tightly, and the elastic buffer pad 24 can absorb and alleviate the vibration and impact transmitted from the folding ring 22 to the housing 1, reduce the transmission of mechanical vibration, and prevent the noise caused by the resonance or vibration of the housing 1, thereby improving the sound quality performance of the sound-generating device 100.

[0044] Please combine Figure 2 and Figure 3 ,in, Figure 3 The present invention provides a disassembled schematic diagram of the card slot and the card connection assembly of the sound-generating device. In one embodiment, the gap 231 includes a first gap 232, a second gap 233, and a third gap 234 that are connected in sequence. The elastic buffer pad 24 includes a first buffer section 241, a second buffer section 242, and a third buffer section 243. The first buffer section 241, the second buffer section 242, and the third buffer section 243 are connected or abutted in sequence to form a U-shaped elastic buffer pad 24 with an opening 240 facing inward, and the first buffer section 241, the second buffer section 242, and the third buffer section 243 are filled in the first gap 232, the second gap 233, and the third gap 234 respectively. U-shaped gap

[0045] Three gaps 231 connected in sequence form a U-shaped gap, and the three gaps 231 connected in sequence correspond to the three side wall surfaces of the snap-in assembly 23 for connecting with the card slot 11, and the first buffer section 241, the second buffer section 242 and the third buffer section 243 are filled in the first gap 232, the second gap 233 and the third gap 234 respectively, so that each surface of the snap-in assembly 23 can absorb and relieve vibration through the elastic buffer pad 24, further reducing the transmission of mechanical vibration and preventing noise caused by resonance or vibration of the housing 1.

[0046] Furthermore, the outer wall of the first buffer section 241 and / or the outer wall of the second buffer section 242 and / or the outer wall of the third buffer section 243 is provided with a pressing piece 244, and the pressing piece 244 is used to press against the groove wall of the card slot 11. The outer wall of at least one of the first buffer section 241, the second buffer section 242 and the third buffer section 243 is provided with a pressing piece 244, and the elastic buffer pad 24 is squeezed and limited in the gap 231 by the clamping assembly 23 and the card slot 11, but it is not tightly fitted everywhere, so the pressing piece 244 is used to improve the abutment tightness between the elastic buffer pad 24 and the card slot 11, and the elastic buffer pad 24 is prevented from deviating or falling out of the gap 231, thereby ensuring the buffering effect of the elastic buffer pad 24.

[0047] Specifically, an outer wall of the first buffer section 241 is provided with an abutment groove 245 to form a clamping piece 244, and a slot wall of the slot 11 is formed with an abutment protrusion 111 that abuts against the abutment groove 245; and / or, an outer wall of the second buffer section 242 is provided with a second protrusion 246 to form a clamping piece 244; and / or, an outer wall of the third buffer section 243 is provided with a third protrusion 247 to form a clamping piece 244.

[0048] Abutment groove 245 is provided on the first buffer section 241, and abutment protrusion 111 is provided on the groove wall of the card slot 11. On the one hand, the first buffer section 241 can be limited and fixed by the plug-in cooperation between the abutment groove 245 and the abutment protrusion 111, and on the other hand, it is convenient to position during the installation process, thereby improving assembly efficiency and assembly accuracy; a second protrusion 2467 is provided on the second buffer section 242 to press the second buffer section 242 against the groove wall of the card slot, and a third protrusion 24 is provided on the third buffer section 243 to press the third buffer section 243 against the groove wall of the card slot, thereby improving the abutment tightness and preventing the elastic buffer pad 24 from being offset or falling off outside the gap 231, thereby ensuring the buffering effect of the elastic buffer pad 24.

[0049] It should be noted that not all the first buffer segment 241, the second buffer segment 242 and the third buffer segment 243 need to be provided with a clamping member 244. For the sake of convenience, the first buffer segment 241, the second buffer segment 242 and the third buffer segment 24 are all referred to as buffer segments. According to actual needs, a clamping member 244 can be provided in the buffer segment with insufficient abutment tightness. If the tightness of a buffer segment itself with the card slot 11 and the card assembly 23 has reached the required level, there is no need to provide a clamping member 244, so as to improve production efficiency and reduce production costs.

[0050] Please combine Figure 2 and Figure 3 In a specific embodiment, the first buffer section 241, the second buffer section 242 and the third buffer section 243 are flexible pads formed in one piece. The first buffer section 241, the second buffer section 242 and the third buffer section 243 are U-shaped flexible pads formed in one piece. When installing, the flexible buffer pad is first placed in the card slot 11, and then the clamping assembly 23 is extended into the opening formed by the flexible buffer pad, so that the three outer wall surfaces of the clamping assembly 23 are respectively pressed against the first buffer section 241, the second buffer section 242 and the third buffer section 243, thereby improving the convenience of installation and assembly efficiency.

[0051] See also Figure 5 ,in, Figure 5 The present invention provides a schematic structural diagram of a card slot and a card-connecting assembly of another embodiment of a sound-generating device. In another specific embodiment, the first buffer segment 241 and the second buffer segment 242 are flexible pads that are integrally formed, and the third buffer segment 243 is a pressure block 248, which is a hard pad, and the pressure block 248 abuts against one end of the second buffer segment 242 away from the first buffer segment 241.

[0052] The hard pressure block 248 is brought into contact with the second connecting portion 223 of the folding ring 22, and the second connecting portion 223 is pressed against the clamping edge 211 through the pressure block 248. Compared with the flexible pad, the hard pad can increase the connection strength and stability between the second connecting portion 223 and the clamping slot 11, thereby ensuring the accurate positioning of the folding ring 22 and the basin frame 21, thereby avoiding looseness or displacement and maintaining the long-term stability of the sound-emitting device 100. The hard pad can also ensure a close fit between the clamping assembly 23 and the clamping slot 11, thereby improving the accuracy during the installation process and avoiding unstable connection due to tolerance or installation errors.

[0053] Furthermore, a flexible gasket 249 is provided between the pressing block 248 and the groove wall of the card slot 11 and between the pressing block 248 and the second connecting portion 223. The flexible gasket 249 is provided between the pressing block 248 and the groove wall of the card slot 11 and between the pressing block 248 and the second connecting portion 223. The flexible gasket 249 absorbs and alleviates the vibration from the folding ring 22 or the basin frame 21, which helps to prevent the vibration from being transmitted to the housing 1, reduce the resonance of the housing 1, reduce distortion and noise, and thus improve the sound quality of the sound-generating device 100.

[0054] In one embodiment, a clamping block 224 is formed on the outer peripheral edge of the second connecting portion 223, and the clamping edge 211 includes an abutting portion 212 and a bending portion 213 connected in sequence from the inside to the outside, and the bending portion 213 is bent from the abutting portion 212 toward the second connecting portion 223, and a placement groove 214 is formed between the abutting portion 212, the bending portion 213 and the elastic buffer pad 24, and the clamping block 224 extends into the placement groove 214 and is clamped and matched with the placement groove 214.

[0055] The abutting portion 212 and the bending portion 213 of the clamping edge 211 form an L-shaped structure, and a placement groove 214 is formed between the L-shaped structure and the elastic buffer pad 24. The clamping block 224 is placed in the placement groove 214 and is clamped with the placement groove 214, so that the second connection portion 223 is more stable, and the stability of the folding ring 22 is improved. The main function of the folding ring 22 is to allow the cone 26 to vibrate freely and provide a certain elastic reset force. If the contact area between the folding ring 22 and the elastic buffer pad 24 is too large, the mechanical damping will increase, resulting in limited vibration of the folding ring 22. This will cause part of the vibration energy to be consumed on the contact surface. Therefore, the second connection portion 223 is shielded by the bending portion 213, and the contact area between the second connection portion 223 and the elastic buffer pad 24 is reduced, which can reduce the energy damage of the folding ring 22 and improve the sound effect of the sound device 100.

[0056] Furthermore, the block 224 has a first abutting plane 225 and a second abutting plane 226, the first abutting plane 225 is tightly abutted against the inner wall of the elastic buffer pad 24, and the second abutting plane 226 is tightly abutted against the abutting portion 212; the two opposite sides of the block 224 are both planes, so that the abutment between the block 224 and the elastic buffer pad 24 is more stable, and the abutment between the block 224 and the clamping edge 211 is more stable, thereby reducing the wear of the folding ring 22 and improving the connection stability of the block 224.

[0057] The inner wall surface where the elastic buffer pad 24 abuts against the first abutting plane 225 and the inner wall surface where the abutting portion 212 abuts against the second abutting plane 226 are both planes, and the outer wall surface at the connection between the abutting portion 212 and the bending portion 213 is an arc surface. The position of the elastic buffer pad 24 corresponding to the arc surface forms an arc wall 251, and the arc wall 251 matches the shape of the arc surface and abuts against each other.

[0058] The inner wall of one side where the elastic buffer pad 24 abuts against the first abutting plane 225 is a plane wall 25, so that the block 224 is subjected to the same extrusion force at each location on the first abutting plane 225, so that the force is evenly applied at each location, reducing local stress concentration, thereby reducing the risk of loosening or poor connection of the block 224. At the same time, the contact between the plane wall 25 and the first abutting plane 225 can ensure uniform distribution of force, avoid resonance caused by local poor contact or deformation, and improve the clarity and accuracy of the sound of the sound-emitting device 100.

[0059] In one embodiment, the sound unit 2 further includes a cone 26, the outer peripheral edge of the cone 26 overlaps with the first connecting portion 221 to form a composite layer, and the composite layer is ultrasonically welded to fuse the cone 26 and the folding ring 22.

[0060] The composite layers of the cone 26 and the folded ring 22 are fused together through ultrasonic welding, so that the cone 26 and the folded ring 22 do not need to be bonded with glue, and no odor will be generated due to the volatilization of glue, thereby improving the user experience, not affecting the user's health, being more environmentally friendly, and not failing in the reliability odor test.

[0061] In one embodiment, the melting point of the rim 22 at the composite layer is lower than the melting point of the cone 26 at the composite layer.

[0062] The melting point of the cone 26 at the composite layer is set higher than the melting point of the folding ring 22 of the composite layer, so that the cone 26 can withstand higher temperatures during ultrasonic welding without melting, thereby avoiding negative impact on the structural integrity of the cone 26 and ensuring the performance of the speaker.

[0063] Please combine Figure 1 and Figure 4 ,in, Figure 4 This is a partial structural diagram of the voice coil and the centering support of the sound device provided by the present invention. In one embodiment, the sound unit 2 further includes a voice coil 27 and a magnetic circuit system 28. The inner peripheral edge of the cone 26 is connected to the voice coil 27, and the inner peripheral edge of the basin frame 21 is connected to the magnetic circuit system 28. The magnetic circuit system 28 forms a magnetic gap 231, and the voice coil 27 is suspended in the magnetic gap 231. The inner peripheral edge of the basin frame 21 is connected to the magnetic circuit system 28 and will not vibrate with the movement of the voice coil 27. The voice coil 27 is suspended in the magnetic gap 231, which can maximize the magnetic field strength and uniformity, optimize the electromagnetic conversion efficiency, ensure the movement of the voice coil 27 accurately and efficiently, avoid energy loss and distortion caused by friction or resistance, and improve the response speed and sound clarity of the sound device 100.

[0064] In one embodiment, the sound unit 2 also includes a centering support plate 29, the outer peripheral edge of the centering support plate 29 is connected to the basin frame 21, the voice coil 27 is provided with a plurality of snap-in holes 271 at intervals along its circumference, and the inner peripheral edge of the centering support plate 29 is provided with a plurality of snap-in parts 291 at intervals along its circumference, and the number of the snap-in parts 291 is consistent with the number of the snap-in holes 271 and they are snap-fitted one by one.

[0065] The centering support piece 29 and the voice coil 27 are mechanically fixed by the clamping cooperation between the clamping piece 291 and the clamping hole 271. Mechanical fixation replaces glue bonding, which can significantly improve the stability and durability of the structure and avoid loosening or falling off caused by aging or failure of the glue. The centering support piece 29 and the voice coil 27 can be fixed without glue, and no volatile odor will be generated without glue bonding, thereby improving the user experience, not affecting the user's health, and being more environmentally friendly.

[0066] In one embodiment, the magnetic circuit system 28 includes a U iron 281 and a magnet 282 . The U iron 281 is disposed outside the magnet 282 and forms a magnetic gap 231 with the magnet 282 . A magnetic conductive plate 283 is disposed on one side of the magnet 282 facing the cone 26 .

[0067] The U iron 281 is arranged around the periphery of the magnet 282, and can concentrate the magnetic lines of force of the magnet 282 to the magnetic gap 231, so that the magnetic field strength in the magnetic gap 231 where the voice coil 27 is located is more concentrated and enhanced. This helps to improve the driving force of the voice coil 27 in the magnetic field, thereby improving the efficiency and sound quality performance of the sound device 100. The magnetic plate 283 can accurately control the height and position of the magnetic gap 231, ensuring the correct positioning and free movement of the voice coil 27 in the magnetic gap 231. The magnetic plate 283 can also increase the uniformity of the magnetic field, so that the force exerted on the voice coil 27 during the entire vibration stroke is more uniform and consistent, thereby improving the sound effect.

[0068] In one embodiment, a limiting groove 215 is provided on the inner edge of the basin frame 21, and the notch of the limiting groove 215 is set inward. A limiting block 284 is provided on the outer wall of the U iron 281 corresponding to the basin frame 21, and the limiting groove 215 is plugged into and matched with the limiting block 284.

[0069] The basin frame 21 and the U iron 281 are fixed by plugging and fitting together through the limit groove 215 and the limit block 284, so that the basin frame 21 and the U iron 281 can be fixed without glue. Without glue bonding, no volatile odor will be produced, thereby improving the user experience, not affecting the user's health, and being more environmentally friendly.

[0070] The present invention also proposes an electronic device, which uses the above-mentioned sound-emitting device 100. The specific structure of the sound-emitting device 100 refers to the above-mentioned embodiment. Since the electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0071] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sound-generating device, characterized in that: include: A shell, wherein the inner wall of the shell is provided with a card slot, and the notch of the card slot is arranged inwardly; The sound-emitting unit includes a basin frame and a folding ring, the folding ring includes a first connecting part, a folding ring part and a second connecting part which are sequentially connected from the inside to the outside, the outer peripheral edge of the basin frame forms a snap-fitting edge, the second connecting part and the snap-fitting edge constitute a snap-fitting assembly, the snap-fitting assembly extends into the snap-fitting slot and snap-fits with the snap-fitting slot.

2. The sound-generating device according to claim 1, characterized in that: A gap is formed between the clamping assembly and the slot wall of the clamping slot, and an elastic buffer pad is arranged between the clamping assembly and the slot wall of the clamping slot, and the elastic buffer pad fills the gap.

3. The sound-generating device according to claim 2, characterized in that: The gap includes a first gap, a second gap and a third gap that are connected in sequence, and the elastic buffer pad includes a first buffer segment, a second buffer segment and a third buffer segment. The first buffer segment, the second buffer segment and the third buffer segment are connected or abutted in sequence to form a U-shaped elastic buffer pad with an opening facing inward, and the first buffer segment, the second buffer segment and the third buffer segment are filled in the first gap, the second gap and the third gap respectively and one by one.

4. The sound-generating device according to claim 3, characterized in that: The outer wall of the first buffer section and / or the outer wall of the second buffer section and / or the outer wall of the third buffer section is provided with a pressing piece, and the pressing piece is used to press against the slot wall of the card slot.

5. The sound-generating device according to claim 4, characterized in that: An abutting groove is formed on the outer wall of the first buffer section to form the abutting member, and an abutting protrusion abutting against the abutting groove is formed on the groove wall of the clamping groove corresponding to the abutting groove; And / or, the outer wall of the second buffer section is provided with a second protrusion to form the abutting member; And / or, the outer wall of the third buffer section is provided with a third protrusion to form the abutting member.

6. The sound-generating device according to claim 3, characterized in that: The first buffer section, the second buffer section and the third buffer section are flexible cushion blocks formed in one piece.

7. The sound-generating device according to claim 3, characterized in that: The first buffer section and the second buffer section are flexible pads formed in one piece, and the third buffer section is a pressing block, which is a hard pad and abuts against one end of the second buffer section away from the first buffer section.

8. The sound-generating device according to claim 7, characterized in that: Flexible gaskets are provided between the pressing block and the slot wall of the card slot and between the pressing block and the second connecting portion.

9. The sound-generating device according to any one of claims 2 to 8, characterized in that: A clamping block is formed on the outer peripheral edge of the second connecting portion, and the clamping edge includes an abutting portion and a bending portion connected in sequence from the inside to the outside, the bending portion is bent from the abutting portion toward the second connecting portion, and a placement groove is formed between the abutting portion, the bending portion and the elastic buffer pad, and the clamping block extends into the placement groove and is clamped and matched with the placement groove.

10. The sound-generating device according to claim 9, characterized in that: The block has a first abutment plane and a second abutment plane, the first abutment plane abuts against the inner wall of the elastic buffer pad, and the second abutment plane abuts against the abutment portion; the inner wall surface of the elastic buffer pad abutting against the first abutment plane and the inner wall surface of the abutment portion abutting against the second abutment plane are both planes, the outer wall surface of the connection between the abutment portion and the bending portion is an arc surface, the elastic buffer pad forms an arc-shaped wall at the position corresponding to the arc surface, the arc-shaped wall matches the shape of the arc surface and abuts against each other.

11. The sound-generating device according to any one of claims 1 to 8, characterized in that: The sound-emitting unit also includes a cone, and the outer peripheral edge of the cone overlaps with the first connecting portion to form a composite layer. Ultrasonic welding is performed at the composite layer to fuse the cone and the folding ring.

12. The sound-generating device according to claim 11, characterized in that: The melting point of the fold at the composite layer is lower than the melting point of the cone at the composite layer.

13. The sound-generating device according to claim 11, characterized in that: The sound unit also includes a voice coil and a magnetic circuit system. The inner peripheral edge of the cone is connected to the voice coil, and the inner peripheral edge of the basin frame is connected to the magnetic circuit system. The magnetic circuit system forms a magnetic gap, and the voice coil is suspended in the magnetic gap.

14. The sound-generating device according to claim 13, characterized in that: The sound unit also includes a centering support plate, the outer peripheral edge of the centering support plate is connected to the basin frame, the voice coil is provided with a plurality of clamping holes at intervals along its circumference, and the inner peripheral edge of the centering support plate is provided with a plurality of clamping parts at intervals along its circumference, the number of the clamping parts is consistent with the number of the clamping holes and they are clamped in a one-to-one correspondence.

15. The sound-generating device according to claim 13, characterized in that: The magnetic circuit system includes a U iron and a magnet. The U iron is arranged outside the magnet and forms the magnetic gap with the magnet. A magnetic conductive plate is arranged on one side of the magnet facing the cone.

16. The sound-generating device according to claim 15, characterized in that: A limiting groove is arranged on the inner peripheral edge of the basin frame, the notch of the limiting groove is arranged inwardly, a limiting block is arranged on the outer wall of the U iron corresponding to the limiting groove, and the limiting groove is plug-fitted with the limiting block.

17. An electronic device, characterized in that: The electronic device is applied with the sound-generating device according to any one of claims 1 to 16.

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