Loudspeaker and electronic device

Abstract

The utility model belongs to the technical field of electroacoustic products, and relates to a loudspeaker and an electronic device.The loudspeaker comprises a vibrating diaphragm, a folding ring and a basin stand, the vibrating diaphragm is located on the inner side of the folding ring, the folding ring is fixed to the basin stand, the folding ring comprises a first connecting edge, a folding ring part and a second connecting edge which are connected in sequence, and the section shape of the folding ring part is the same as the positive semi-circle shape of a sine wave; the first connecting edge is provided with a pressing block, the first connecting edge and the pressing block are fixedly connected with the frame, and the second connecting edge is fixedly connected with the diaphragm. According to the loudspeaker provided by the invention, the shape of the cross section of the folded ring part is the same as the shape of the positive half circle of the sine wave, so that Kms (x) asymmetry caused by non-uniform folded ring shape change can be reduced; besides, a pressing block is arranged on the first connecting edge, the first connecting edge and the pressing block are both fixedly connected with the basin stand, the pressing block can enhance the strength of the folding ring, meanwhile, the pressing block can increase the attaching area and the attaching firmness between the folding ring and the basin stand, the folding ring is not prone to deformation and wrinkles, and then the flatness of the folding ring during vibration is improved.

Description

Technical Field

[0001] This application relates to the technical field of electroacoustic products, and more specifically, to a loudspeaker and an electronic device. Background Art

[0002] The symmetry of the nonlinear characteristic Kms(x) of the loudspeaker plays a crucial role in loudspeaker design. It can not only improve low-frequency distortion but also optimize the sound quality experience.

[0003] In the prior art, the symmetry and flatness of the nonlinear characteristic Kms(x) of the loudspeaker surround are relatively poor. Especially when the amplitude is large, the surround is prone to large displacement and wrinkling. This wrinkling phenomenon will cause the loudspeaker to vibrate unevenly at high power, which may lead to voice coil rubbing or generating edge-pulling sound, resulting in nonlinear distortion of the loudspeaker and affecting the user experience. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of this application is that in the prior art, the symmetry and flatness of the nonlinear characteristic Kms(x) of the loudspeaker surround are relatively poor. Especially when the amplitude is large, the surround is prone to large displacement and wrinkling.

[0005] To solve the above technical problem, the embodiments of this application provide a loudspeaker, which adopts the following technical solutions:

[0006] A loudspeaker includes a diaphragm, a surround, and a chassis. The surround surrounds the outer periphery of the diaphragm and is fixed to the chassis.

[0007] The surround includes a first connecting edge, a surround portion, and a second connecting edge connected in sequence. The cross-sectional shape of the surround portion is the same as the positive half-cycle shape of a sine wave. A pressing block is provided on the first connecting edge. Both the first connecting edge and the pressing block are fixedly connected to the chassis, and the second connecting edge is fixedly connected to the diaphragm.

[0008] Further, the first connecting edge, the surround portion, the second connecting edge, and the pressing block are integrally formed.

[0009] Further, the chassis includes a chassis body and a first fixing portion connected to each other. The chassis body has a receiving cavity, and one end of the receiving cavity has a first opening. The first fixing portion is provided at the first opening.

[0010] The first fixing portion includes a supporting edge and a retaining edge fixed on the supporting edge. The first connecting edge is fixed on the supporting edge, and the pressing block is fixedly connected to the retaining edge.

[0011] Further, the diaphragm has a third connecting edge, and the second connecting edge is stacked and fixed on the third connecting edge.

[0012] Further, the diaphragm further includes a diaphragm body and a buffer portion. The buffer portion is located between the diaphragm body and the third connecting edge, and the cross-sectional shape of the buffer portion is V-shaped or U-shaped.

[0013] Further, the diaphragm body, the buffer portion and the third connecting edge are integrally formed.

[0014] Further, the loudspeaker further includes a voice coil assembly and a spider. The voice coil assembly and the spider are disposed in the accommodation cavity. The chassis body is provided with a first mounting step. One end of the spider is fixedly connected to the voice coil assembly, and the other end of the spider is provided with a horizontal section, and the horizontal section is fixed on the first mounting step.

[0015] Further, the chassis further includes a second fixing portion. The accommodation cavity has a second opening, and the second opening is disposed at opposite ends of the accommodation cavity relative to the first opening. The second fixing portion is disposed at the second opening;

[0016] The loudspeaker further includes a U-shaped iron. The U-shaped iron is disposed at the second opening. The U-shaped iron has a first connecting arm disposed opposite to each other. A second mounting step is provided on a side of the first connecting arm close to the second opening, and the second fixing portion is fixed on the second mounting step.

[0017] Further, the loudspeaker further includes a magnet and a washer. The U-shaped iron further includes a second connecting arm. The second connecting arm is located between the first connecting arms, and the magnet and the washer are sequentially stacked and fixed on the second connecting arm;

[0018] The voice coil assembly includes a voice coil tube and a voice coil. The voice coil tube has a first end and a second end disposed opposite to each other. The first end is fixedly connected to the diaphragm, and the second end is fixedly connected to the voice coil. The voice coil is located between the first connecting arm and the washer, and the first connecting arm, the washer and the magnet are all spaced apart from the voice coil.

[0019] To solve the above technical problems, an embodiment of the present application further provides an electronic device, which adopts the following technical solutions:

[0020] An electronic device includes the loudspeaker as described above.

[0021] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0022] (1) The cross-sectional shape of the surround portion of the present application is the same as the positive half-cycle shape of a sine wave. The waveform of the sine wave has perfect symmetry, which helps the surround maintain a more uniform deformation during vibration, reduce the asymmetry of Kms(x) caused by uneven surround deformation, and thus reduce the nonlinear distortion of the speaker.

[0023] (2) A pressing block is provided on the first connecting edge of the present application. Both the first connecting edge and the pressing block are fixedly connected to the chassis. The pressing block can enhance the strength of the surround. At the same time, the pressing block can increase the fitting area and fitting firmness between the surround and the chassis, making the surround not easily deformed or wrinkled, and thus improving the flatness when the surround vibrates. Brief Description of the Drawings

[0024] To more clearly illustrate the solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a curve graph of the nonlinear characteristic Kms(x) of the surround in the prior art;

[0026] Figure 2 is a simulation diagram of the surround vibration in the prior art;

[0027] Figure 3 is a schematic cross-sectional view of the speaker provided by the embodiment of the present utility model;

[0028] Figure 4 is the present utility model Figure 3 partial enlarged view of part A;

[0029] Figure 5 is the present utility model Figure 3 partial enlarged view of part B;

[0030] Figure 6 is the present utility model Figure 3 partial enlarged view of part C;

[0031] Figure 7 is a curve graph of the nonlinear characteristic Kms(x) of the surround provided by the embodiment of the present utility model;

[0032] Figure 8 is a simulation diagram of the surround vibration provided by the embodiment of the present utility model.

[0033] Reference Signs:

[0034] 100. Loudspeaker; 1. Diaphragm; 11. Third connecting edge; 12. Diaphragm body; 13. Buffer part; 2. Surround; 21. First connecting edge; 22. Surround part; 23. Second connecting edge; 24. Pressing block; 3. Speaker frame; 31. Speaker frame body; 32. First fixing part; 321. Supporting edge; 322. Baffle edge; 33. Accommodating cavity; 34. First mounting step; 35. Second fixing part; 4. Voice coil assembly; 41. Voice coil tube; 42. Voice coil; 5. Spider; 51. Horizontal section; 6. U-shaped iron; 61. First connecting arm; 611. Second mounting step; 62. Second connecting arm; 7. Magnet; 8. Washer. Detailed implementation manners

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0036] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment each time it appears in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] To enable those skilled in the technical field to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the drawings.

[0038] The suspension system of the loudspeaker positions the voice coil in the middle of the magnetic gap (centering function) and generates a restoring force F that returns the voice coil to the rest position. Only in the case of small amplitudes, the displacement x and the restoring force F are approximately linearly related, and the restoring force can be expressed as F = Kms(x)x, where Kms(x) is the stiffness coefficient that varies with the displacement x. The change value of Kms(x) reflects the non-linearity degree of the suspension system stiffness with respect to the displacement x. Under the same displacement, the smaller the change value of Kms(x), the better the relative stability of the suspension system stiffness during displacement change, and the smaller the distortion caused by the non-linear characteristics.

[0039] In the related prior art, the cross-sectional shape of the speaker surround is generally semi-circular, and its non-linear characteristic Kms(x) has relatively poor symmetry and flatness. Figure 1 Curve 1 in Figure 2 is the non-linear characteristic Kms(x) curve of the surround in the prior art. Analyzing with an up-and-down vibration displacement of 3 mm, when vibrating upward to 3 mm, the change value of Kms(x) is 1.9291 - 1.115 = 0.8141 N / mm, and when vibrating downward to 3 mm, the change value of Kms(x) is 1.5202 - 1.115 = 0.4052 N / mm. The change value of Kms(x) is relatively large, and the change of the non-linear characteristic is relatively obvious; in addition, Figure 2 is the simulation diagram of the surround vibration in the prior art. As can be seen from Figure 2 , when the surround in the prior art has a large displacement, wrinkling will occur. This wrinkling phenomenon will cause the speaker to vibrate unevenly at high power, resulting in voice coil rubbing or pulling edge sound, causing non-linear distortion.

[0040] The following will describe the embodiments of the present invention in conjunction with Figures 3 to 8 .

[0041] Please refer to Figure 3 and Figure 4 As shown, the speaker 100 of the present application includes a diaphragm 1, a surround 2 and a chassis 3. The surround 2 is a ring structure. The surround 2 surrounds the outer periphery of the diaphragm 1 and is fixed to the chassis 3; the surround 2 includes a first connecting edge 21, a surround part 22 and a second connecting edge 23 connected in sequence. The first connecting edge 21 is located outside the surround part 22, the second connecting edge 23 is located inside the surround part 22, and the cross-sectional shape of the surround part 22 is the same as the positive half-cycle shape of a sine wave. A pressing block 24 is provided on the first connecting edge 21. Both the first connecting edge 21 and the pressing block 24 are fixedly connected to the chassis 3, and the second connecting edge 23 is fixedly connected to the diaphragm 1. Specifically, the fixing method of the surround 2 is not limited. The surround 2 can be fixed to the diaphragm 1 and the chassis 3 by means of adhesive connection, press connection, snap connection, etc. Preferably, the surround 2 is fixed to the diaphragm 1 and the chassis 3 by means of adhesive connection.

[0042] In this embodiment, please refer to Figure 7 as shown. Figure 7 Curve 2 in Figure 1 is the non-linear characteristic Kms(x) curve of the surround 2 of the present application. Analyzing with an up-and-down vibration displacement of 3 mm, when vibrating upward to 3 mm, the change value of Kms(x) is 1.5235 - 1.2799 = 0.2436 N / mm, and when vibrating downward to 3 mm, the change value of Kms(x) is 1.4117 - 1.2799 = 0.1318 N / mm. Compared with Figure 1 Curve 1 in in the present application, when the surround 2 vibrates with the same displacement, the change value of Kms(x) is much smaller, and the distortion will also be reduced; in addition, please refer toFigure 8 As shown Figure 8 is a simulation diagram when the surround 2 of the present application undergoes large-displacement vibration. As can be seen from Figure 8 it, when the surround 2 undergoes large-displacement vibration, no wrinkles will be generated, and it has good flatness and vibration stability with small distortion. Therefore, in the present application, by designing the cross-sectional shape of the surround portion 22 to be the same as the positive half-cycle shape of a sine wave, the waveform of the sine wave has perfect symmetry, and this symmetry helps the surround 2 to maintain a more uniform deformation during vibration, reducing the asymmetry of Kms(x) caused by the uneven deformation of the surround 2, thereby reducing the nonlinear distortion of the loudspeaker 100; at the same time, a pressing block 24 is provided on the first connecting edge 21, and both the first connecting edge 21 and the pressing block 24 are fixedly connected to the chassis 3. The pressing block 24 can not only enhance the strength of the surround 2, but also increase the fitting area and fitting firmness between the surround 2 and the chassis 3, and the surround 2 is not easily deformed and wrinkled, which can further improve the flatness of the surround 2 during vibration.

[0043] In one embodiment, please refer to Figure 3 as shown. The first connecting edge 21, the surround portion 22, the second connecting edge 23 and the pressing block 24 are integrally formed. The integrally formed design makes the surround 2 have higher structural stability. Compared with the traditional multi-component connection method, the integrally formed surround 2 can reduce the seams and gaps between the first connecting edge 21, the surround portion 22, the second connecting edge 23 and the pressing block 24, and reduce the structural looseness and noise caused by vibration.

[0044] In one embodiment, please refer to Figure 3 and Figure 4 as shown. The chassis 3 includes a chassis body 31 and a first fixing portion 32 connected to each other. The chassis body 31 has a receiving cavity 33, one end of the receiving cavity 33 has a first opening (not shown in the figure), and the first fixing portion 32 is provided at the first opening; the first fixing portion 32 includes a supporting edge 321 and a retaining edge 322 fixed on the supporting edge 321. The first connecting edge 21 is fixed on the supporting edge 321, and the pressing block 24 is fixedly connected to the retaining edge 322. Specifically, the pressing block 24 is fixed on the outside of the first connecting edge 21, the first connecting edge 21 is stacked on the supporting edge 321, the bottom surface of the first connecting edge 21 is in abutting contact with the top surface of the supporting edge 321, and the outer side wall of the pressing block 24 is in abutting contact with the inner side wall of the retaining edge 322. The pressing block 24 can increase the fitting area and fitting firmness between the surround 2 and the chassis 3, and the surround 2 is not easily deformed and wrinkled. In this embodiment, the bottom surface of the first connecting edge 21 and the top surface of the supporting edge 321 can be fixedly connected by an adhesive method, and the outer side wall of the pressing block 24 and the inner side wall of the retaining edge 322 can be fixedly connected by an adhesive method.

[0045] In one embodiment, please refer to Figure 3 and Figure 4As shown, the diaphragm 1 has a third connecting edge 11, and the second connecting edge 23 is stacked and fixed on the third connecting edge 11. In this embodiment, both the second connecting edge 23 and the third connecting edge 11 have a certain width. Stacking and fixing the second connecting edge 23 on the third connecting edge 11 can increase the bonding area and bonding strength between the diaphragm 1 and the surround 2, prevent the diaphragm 1 and the surround 2 from generating splitting vibration due to structural looseness, and effectively improve the problem of peak and valley reduction in the mid-frequency of the speaker 100.

[0046] In one embodiment, please refer to Figure 3 As shown, the diaphragm 1 further includes a diaphragm body 12 and a buffer portion 13. The buffer portion 13 is located between the diaphragm body 12 and the third connecting edge 11, and the cross-sectional shape of the buffer portion 13 is V-shaped or U-shaped. In this embodiment, the cross-sectional shape of the buffer portion 13 is V-shaped or U-shaped. The buffer portion 13 can ensure that the diaphragm 1 can move along the axial direction of the speaker 100, thereby effectively converting the audio signal into sound. In addition, the buffer portion 13 can also play a role in restricting the lateral movement of the diaphragm 1, helping to reduce sound distortion caused by unnecessary lateral vibration and ensuring the sound quality of the speaker 100.

[0047] In one embodiment, please refer to Figure 3 As shown, the diaphragm body 12, the buffer portion 13 and the third connecting edge 11 are integrally formed. The integrally formed design makes the diaphragm 1 have higher structural stability. Compared with the traditional multi-component connection method, the integrally formed diaphragm 1 can reduce the seams and gaps between the diaphragm body 12, the buffer portion 13 and the third connecting edge 11, and reduce the structural looseness and noise caused by vibration.

[0048] In one embodiment, please refer to Figure 3 and Figure 5 As shown, the speaker 100 further includes a voice coil assembly 4 and a spider 5. The voice coil assembly 4 and the spider 5 are arranged in the accommodation cavity 33. A first mounting step 34 is provided on the frame body 31. One end of the spider 5 is fixedly connected to the voice coil assembly 4, and the other end of the spider 5 is provided with a horizontal section 51, and the horizontal section 51 is fixed on the first mounting step 34. In this embodiment, the corrugated shape of the spider 5 is not limited. Preferably, the corrugated shape of the spider 5 can be a sine wave shape. One end of the spider 5 is provided with a horizontal section 51, and the horizontal section 51 is placed on the horizontally arranged first mounting step 34. The horizontal section 51 can be fixedly connected to the frame body 31 by gluing. The horizontal section 51 can increase the contact area between the glue and the first mounting step 34, greatly increasing the bonding force between the spider 5 and the frame body 31, thereby ensuring that the speaker 100 can pull the spider 5 greatly under high power conditions, and the spider 5 will not peel off the frame body 31.

[0049] In one embodiment, please refer toFigure 3 and Figure 6 As shown in Figure 6 , the basin frame 3 further includes a second fixing portion 35. The accommodating cavity 33 has a second opening (not shown in the figure). The second opening and the first opening are oppositely arranged at both ends of the accommodating cavity 33. The second fixing portion 35 is arranged at the second opening. The speaker 100 further includes a U-shaped iron 6. The U-shaped iron 6 is arranged at the second opening. The U-shaped iron 6 has a first connecting arm 61 arranged oppositely. On the side of the first connecting arm 61 close to the second opening, there is a second mounting step 611. The second fixing portion 35 is fixed on the second mounting step 611. Specifically, the second fixing portion 35 is fixedly connected to the second mounting step 611 by glue. The second mounting step 611 can increase the contact area between the second fixing portion 35 and the second mounting step 611, and the second fixing portion 35 is fixed more firmly.

[0050] In one embodiment, please refer to Figure 3 As shown in Figure 3 , the speaker 100 further includes a magnet 7 and a washer 8. The U-shaped iron 6 further includes a second connecting arm 62. The second connecting arm 62 is located between the first connecting arms 61. The magnet 7 and the washer 8 are sequentially stacked and fixed on the second connecting arm 62. The voice coil assembly 4 includes a voice coil tube 41 and a voice coil 42. The voice coil tube 41 has a first end and a second end arranged oppositely. The first end is fixedly connected to the diaphragm 1, and the second end is fixedly connected to the voice coil 42. The voice coil 42 is located between the first connecting arm 61 and the washer 8, and the first connecting arm 61, the washer 8 and the magnet 7 are all arranged at intervals with the voice coil 42. Specifically, the magnet 7 is fixed on the second connecting arm 62 by glue, and the washer 8 is fixed on the magnet 7 by glue. The magnet 7, the washer 8 and the U-shaped iron 6 together constitute the magnetic circuit system of the speaker 100. When an alternating current passes through the voice coil 42, a magnetic field is generated in the voice coil 42. The magnetic field of the voice coil 42 interacts with the magnetic field of the magnet 7, causing the voice coil 42 to move up and down reciprocally in the magnetic field. The movement of the voice coil 42 will drive the voice coil tube 41 and the diaphragm 1 connected to it to also vibrate correspondingly, thereby generating sound. In this embodiment, the first connecting arm 61, the washer 8 and the magnet 7 are all arranged at intervals with the voice coil 42, which can prevent the voice coil 42 from hitting the components of the magnetic circuit system during the up and down reciprocating movement. In addition, the voice coil 42 is indirectly connected to the surround 2. The cross-sectional shape of the surround portion 22 is the same as the positive half-cycle shape of the sine wave. There is a pressing block 24 on the first connecting edge 21, so that the surround 2 maintains a more uniform deformation during vibration, preventing the voice coil 42 from vibrating unevenly due to the uneven deformation of the surround 2, and reducing the voice coil 42 rubbing against the coil or generating a pulling edge sound.

[0051] According to an embodiment of the present invention, there is also provided an electronic device (not shown in the figure), including the speaker 100 as described above.

[0052] In this embodiment, the speaker 100 of the electronic device sets the cross-sectional shape of the surround portion 22 to be the same as the positive half-cycle shape of a sine wave. The waveform of the sine wave has perfect symmetry, which helps the surround 2 maintain a more uniform deformation during vibration, reducing the Kms(x) asymmetry caused by the uneven deformation of the surround 2, thereby reducing the non-linear distortion of the speaker 100. In addition, a pressing block 24 is provided on the first connecting edge 21 of the surround 2. Both the first connecting edge 21 and the pressing block 24 are fixedly connected to the chassis 3. The pressing block 24 can enhance the strength of the surround 2. At the same time, the pressing block 24 can increase the fitting area and fitting firmness between the surround 2 and the chassis 3, making it difficult for the surround 2 to deform and wrinkle, and thus improving the flatness of the surround 2 during vibration.

[0053] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of them. The drawings show the preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is equally within the scope of the patent protection of the present application.

Claims

1. A loudspeaker, characterized in that: It includes a diaphragm, a folding ring and a basin frame, wherein the folding ring surrounds the outer periphery of the diaphragm and is fixed on the basin frame; The folding ring includes a first connecting edge, a folding ring portion and a second connecting edge connected in sequence, the cross-sectional shape of the folding ring portion is the same as the positive half-cycle shape of a sine wave, a pressure block is provided on the first connecting edge, the first connecting edge and the pressure block are both fixedly connected to the basin frame, and the second connecting edge is fixedly connected to the diaphragm.

2. The loudspeaker according to claim 1, characterized in that The first connecting edge, the folding ring portion, the second connecting edge and the pressing block are integrally formed.

3. The loudspeaker according to claim 2, characterized in that The basin frame comprises a basin frame body and a first fixing portion connected to each other, the basin frame body has a receiving cavity, one end of the receiving cavity has a first opening, and the first fixing portion is arranged at the first opening; The first fixing portion includes a supporting edge and a retaining edge fixed to the supporting edge, the first connecting edge is fixed to the supporting edge, and the pressing block is fixedly connected to the retaining edge.

4. The loudspeaker according to claim 3, characterized in that The diaphragm has a third connecting edge, and the second connecting edge is stacked and fixed on the third connecting edge.

5. The loudspeaker according to claim 4, characterized in that The diaphragm further includes a diaphragm body and a buffer portion, wherein the buffer portion is located between the diaphragm body and the third connecting edge, and a cross-sectional shape of the buffer portion is V-shaped or U-shaped.

6. The loudspeaker according to claim 5, characterized in that The diaphragm body, the buffer portion and the third connecting edge are integrally formed.

7. The loudspeaker according to any one of claims 3 to 6, characterized in that: The speaker also includes a voice coil assembly and a spring wave, which are arranged in the accommodating cavity. A first mounting step is provided on the basin frame body. One end of the spring wave is fixedly connected to the voice coil assembly, and the other end of the spring wave is provided with a horizontal section, which is fixed on the first mounting step.

8. The loudspeaker according to claim 7, characterized in that The basin frame further includes a second fixing portion, the accommodating cavity has a second opening, the second opening is arranged at two ends of the accommodating cavity opposite to the first opening, and the second fixing portion is arranged at the second opening; The speaker also includes a U-shaped iron, which is arranged at the second opening. The U-shaped iron has first connecting arms that are arranged opposite to each other. A second mounting step is provided on a side of the first connecting arm close to the second opening, and the second fixing portion is fixed on the second mounting step.

9. The loudspeaker according to claim 8, characterized in that The speaker further includes a magnet and a washer, the U-shaped iron further includes a second connecting arm, the second connecting arm is located between the first connecting arms, and the magnet and the washer are stacked and fixed on the second connecting arm in sequence; The voice coil assembly includes a voice coil tube and a voice coil, the voice coil tube has a first end and a second end arranged opposite to each other, the first end is fixedly connected to the diaphragm, and the second end is fixedly connected to the voice coil, the voice coil is located between the first connecting arm and the washer, and the first connecting arm, the washer and the magnet are all spaced apart from the voice coil.

10. An electronic device, characterized in that: A speaker comprising the speaker according to any one of claims 1 to 9.

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