Loudspeaker and electronic equipment

Abstract

The utility model discloses a loudspeaker and electronic equipment, relates to loudspeaker technical field, the loudspeaker comprises a magnetic circuit system and a vibration system, the magnetic circuit system comprises a magnet, a U iron and a washer, a magnetic gap is formed between the U iron and the magnet, the washer is arranged on one end portion of the magnet far away from the U iron, the vibration system comprises a voice coil, and the voice coil is connected with the U iron. The voice coil is movably arranged in the magnetic gap, the loudspeaker further comprises a centering support chip and an elastic piece, the centering support chip is arranged between the U iron and the washer, and one side of the centering support chip back on to the U iron is connected with the voice coil; the elastic piece is arranged on the U iron and is positioned in the magnetic gap; wherein the loudspeaker has a first state and a second state; in the first state, the centering disk abuts against the elastic piece. And in the second state, the centering disk is separated from the elastic piece.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a loudspeaker and electronic device. Background Technology

[0002] A loudspeaker is a common acoustic device widely used in electronic devices and other fields. It generally consists of a permanent magnet, a magnetic circuit system, and a vibration system. The permanent magnet in the magnetic circuit system provides a stable magnetic field, and the voice coil in the vibration system is subjected to the electromagnetic force in the magnetic field, which drives the diaphragm to vibrate, thereby producing sound.

[0003] During vibration, the voice coil's forward and backward vibrations produce forward and backward amplitudes, corresponding to displacements forward and backward, respectively. In practical loudspeaker applications, the backward amplitude is often greater than the forward amplitude. This excessively large backward amplitude not only severely affects the overall radiation performance of the loudspeaker, reducing sound clarity and fidelity, but also causes bottoming-out noise during listening tests, greatly damaging the user's listening experience. Utility Model Content

[0004] The main purpose of this invention is to provide a loudspeaker and electronic device that aims to solve the technical problem in related technologies where the user experience of a loudspeaker is reduced due to the back-and-forth vibration of the voice coil.

[0005] To achieve the above objectives, this utility model proposes a loudspeaker, comprising a magnetic circuit system and a vibration system. The magnetic circuit system includes a magnet, a U-shaped iron, and a washer, with a magnetic gap formed between the U-shaped iron and the magnet. The washer is disposed at the end of the magnet away from the U-shaped iron. The vibration system includes a voice coil, which is movably disposed within the magnetic gap. The loudspeaker further includes:

[0006] A centering support is provided between the U-shaped iron and the washer, and the side of the centering support facing away from the U-shaped iron is connected to the voice coil.

[0007] An elastic element is disposed on the U-shaped iron and located within the magnetic gap;

[0008] The speaker has a first state and a second state; in the first state, the centering support plate abuts against the elastic member; in the second state, the centering support plate disengages from the elastic member.

[0009] This utility model also proposes an electronic device, comprising:

[0010] case;

[0011] The speaker described above is located inside the cavity of the housing. Attached Figure Description

[0012] 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.

[0013] Figure 1 A schematic diagram of the structure of the loudspeaker provided by this utility model;

[0014] Figure 2 for Figure 1 Cross-sectional view of the loudspeaker;

[0015] Figure 3 Exploded view of the loudspeaker provided by this utility model;

[0016] Figure 4 A schematic diagram of the structure of the sub-component provided by this utility model;

[0017] Figure 5 This is a schematic diagram of the centering support provided by this utility model.

[0018] Explanation of icon numbers:

[0019] 100. Loudspeaker; 1. Centering support; 11. Through hole; 12. Outer ring; 13. Inner ring; 14. Connecting section; 15. Middle section; 16. Protrusion; 2. Elastic element; 3. Buffer element; 4. U-shaped iron; 41. Slot; 5. Magnet; 5a. Magnetic gap; 6. Washer; 61. Main washer; 62. Secondary washer; 62a. Notch; 7. Voice coil.

[0020] 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

[0021] 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 scope of protection of the present utility model.

[0022] 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 specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] 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 technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, 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. When 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.

[0024] This utility model proposes a loudspeaker 100.

[0025] Please see Figures 1 to 5 In one embodiment of this utility model, the loudspeaker 100 includes a magnetic circuit system and a vibration system. The magnetic circuit system includes a magnet 5, a U-shaped iron 4, and a washer. A magnetic gap 5a is formed between the U-shaped iron 4 and the magnet 5. The washer is disposed at the end of the magnet 5 away from the U-shaped iron 4. The vibration system includes a voice coil 7, which is movably disposed within the magnetic gap 5a. The loudspeaker 100 is characterized in that it further includes a centering support 1 and an elastic member 2. The centering support 1 is disposed between the U-shaped iron 4 and the washer, and the side of the centering support 1 facing away from the U-shaped iron 4 is connected to the voice coil 7. The elastic member 2 is disposed on the U-shaped iron 4 and located within the magnetic gap 5a. The loudspeaker 100 has a first state and a second state. In the first state, the centering support 1 and the elastic member 2 abut against each other. In the second state, the centering support 1 and the elastic member 2 are disengaged.

[0026] In this embodiment, it is understood that the loudspeaker 100 converts electrical signals into sound signals through a magnetic circuit system and a vibration system. The vibration system also includes a diaphragm (not shown here) connected to the voice coil 7. When a changing current passes through the voice coil 7, the changing current generates a changing magnetic field around the voice coil 7. This changing magnetic field interacts with the magnetic field of the U-iron 4, generating a push-pull force that drives the voice coil 7 to vibrate forward or backward. The vibration of the voice coil 7 is transmitted through the diaphragm, and the vibration of the diaphragm drives the surrounding air molecules to vibrate, forming sound waves. During the vibration process, the forward and backward vibration of the voice coil 7 will generate forward and backward amplitudes. In practical applications, the backward amplitude is often greater than the forward amplitude, and the backward amplitude reduces the clarity and fidelity of the sound emitted by the loudspeaker 100. Based on this, this embodiment sets a centering support 1 between the U-iron 4 and the washer 6, and sets the centering support 1 at the bottom of the voice coil 7 to ensure that the voice coil 7 can remain in the center position of the magnetic gap 5a during vibration, avoiding displacement. It should be noted that the centering support 1 is used to limit the vibration range of the voice coil 7, effectively reducing the possibility of the voice coil 7 shifting during vibration, thereby reducing the backward amplitude of the voice coil 7. Simultaneously, the centering support 1 also provides stable support for the voice coil 7, preventing it from colliding with the magnetic circuit system due to off-center movement, thus reducing the backward amplitude of the voice coil 7 and improving sound clarity and fidelity. The material of the centering support 1 includes, but is not limited to, metal sheets (copper sheets, steel sheets, etc.) or composite material sheets, and is not limited here. The elastic element 2 is used to buffer the adjustment of the voice coil 7. Its buffering effect prevents excessive backward vibration during vibration, storing the energy of the backward amplitude of the voice coil 7, thereby reducing the backward amplitude. The elastic element 2 is preferably a spring, arranged in a helical shape. Figure 2 The elastic element 2 is disposed within the magnetic gap 5a. Specifically, the connection between the elastic element 2 and the centering support 1 and the U-shaped iron 4 can be achieved through bonding, snap-fitting, etc., with bonding being preferred here. Bonding can be performed using, but is not limited to, UV adhesives and rubber-based adhesives. The elastic element 2 and the U-shaped iron 4 can also be connected through an integral molding process; this is not limited here. Figure 2 The U-shaped cross-section of the U-shaped iron 4 encloses the magnet 5, and the U-shaped iron 4 and the magnet 5 are connected by adhesive. The washer is also connected to the U-shaped iron 4 or the magnet 5 by adhesive. Specifically, by utilizing the energy storage characteristics of the spring, backward radiated energy is stored, thereby reducing the backward amplitude; and by releasing the spring's stored energy, the forward amplitude is increased. It can be understood that, combined with... Figure 2In the initial state, the centering support 1 and the elastic element 2 are disengaged, with a gap between them. In the first state, the voice coil 7 drives the centering support 1 to vibrate towards the U-shaped iron 4, and the centering support 1 contacts the elastic element 2. At this time, the elastic element 2 is compressed and exerts a force opposite to that of the centering support 1, i.e., a force applied away from the U-shaped iron 4. In the second state, the voice coil 7 vibrates away from the U-shaped iron 4, and the centering support 1 disengages from the elastic element 2, with a certain gap remaining between them. At this time, the elastic element 2 is in its initial state, neither compressed nor stretched. Since the elastic element 2 has stored a certain amount of elastic potential energy in the first state, when the centering support 1 vibrates away from the U-shaped iron 4, the elastic element 2 releases this stored energy. This released energy assists the centering support 1 in its backward vibration, thereby increasing the amplitude of its vibration away from the U-shaped iron 4. The amplitude of the vibration of the centering support 1 in the direction away from the U-shaped iron 4 helps to improve the acoustic performance of the speaker 100, making the sound clearer, fuller and more layered.

[0027] The technical solution of this utility model involves setting a centering support plate 1 and an elastic element 2 in the loudspeaker 100. The centering support plate 1 is positioned between the U-shaped iron 4 and the washer, and the elastic element 2 is positioned between the U-shaped iron 4 and the centering support plate 1. A voice coil 7 is abutted against the side of the centering support plate 1 facing away from the U-shaped iron 4. In the first state, the voice coil 7 vibrates towards the U-shaped iron 4, causing the connected centering support plate 1 to move towards the U-shaped iron 4. The thrust of the voice coil 7 is then transmitted to the centering support plate 1, causing it to be displaced. At this time, the centering support plate 1 abuts against the elastic element 2, which applies a force to the centering support plate 1 in the opposite direction to that towards the U-shaped iron 4, causing the centering support plate 1 to... When vibrating towards the U-shaped iron 4, it can play a certain role in buffering and limiting, preventing the centering support 1 from violently colliding with the U-shaped iron 4 due to excessive vibration, thus generating noise. At the same time, it can also limit the displacement amplitude of the centering support 1 to a certain extent. In the second state, the voice coil 7 vibrates away from the U-shaped iron 4, and the centering support 1 will be displaced by the thrust of the voice coil 7. At this time, the centering support 1 is separated from the elastic element 2. In the first state, since the elastic element 2 has a certain energy storage capacity, the vibration of the centering support 1 away from the U-shaped iron 4 is aided by the elastic potential energy released by the elastic element 2, thereby enhancing the amplitude of its vibration away from the U-shaped iron, thus improving the acoustic performance of the speaker 100, making the sound clearer, fuller and more layered. Due to the presence of the elastic element 2, the centering support 1 can be more evenly stressed when subjected to the thrust of the voice coil 7, both in the forward (vibrating away from the direction of the U-shaped iron 4) and backward (vibrating towards the direction of the U-shaped iron 4) directions. This avoids vibrational deviation or distortion of the voice coil 7 caused by uneven stress, thereby improving the stability and sound quality of the loudspeaker 100. Simultaneously, the centering support 1 ensures that the voice coil 7 remains in the center of the magnetic circuit system during vibration, and the elastic element 2 also provides a certain damping effect during the vibration of the voice coil 7, reducing excessive vibration and unnecessary energy loss, further optimizing the performance of the loudspeaker 100.

[0028] In one embodiment of this utility model, the centering support 1 has a central opening and a plurality of through holes 11, with each pair of adjacent through holes 11 spaced apart, and the washer is exposed in the central opening.

[0029] In this embodiment, combined with Figure 3It is understandable that the centering support 1 is arranged in a ring shape, with a central opening for placing the magnetic circuit system. The washer 6 is exposed in the central opening, and the voice coil 7 is connected to the end of the centering support 1 away from the U-shaped iron 4. The through hole 11 is used to alleviate the vibration of the centering support 1, and this through hole 11 is connected to the magnetic gap 5a. Compared with the solid-filled centering support 1 in related technologies, the solid-filled centering support 1 has greater rigidity due to the absence of gaps, resulting in more obvious vibration. At the same time, the presence of the through hole 11 can reduce the reflection and interference of sound waves by the centering support 1. When sound waves pass through the centering support 1, the through hole 11 can reduce the reflection and scattering on the surface of the centering support 1, allowing the sound waves to propagate more smoothly, thereby improving the clarity and fidelity of the sound.

[0030] In one embodiment of the present invention, the centering support 1 includes an outer ring 12, an inner ring 13, and at least one connecting strip. Each connecting strip includes two connecting segments 14 and a middle segment 15. The two connecting segments 14 extend along the direction from the outer ring 12 to the inner ring 13. The two ends of the middle segment 15 are respectively connected to a connecting segment 14. The middle segment 15 extends along the circumference of the inner ring 13. Each connecting strip forms a through hole 11 by enclosing the outer ring 12 and the inner ring 13.

[0031] In this embodiment, to further reduce the vibration of the centering support 1, combined with Figure 5 The outer ring 12 and inner ring 13 are coaxially arranged and connected by at least one connecting strip. Each connecting strip includes two connecting segments 14 and a middle segment 15, with the two ends of the middle segment 15 connected to the two connecting segments 14 respectively. Each connecting segment 14 extends radially from the outer ring 12 to the inner ring 13, and the middle segment 15 extends in a direction parallel to the circumferential direction of the inner ring 13. The connecting strip, the outer ring 12, and the inner ring 13 enclose a through hole 11. Figure 5 The centering support 1 includes an outer ring 12, an inner ring 13, and four connecting strips. The four connecting strips are evenly distributed around the circumference of the centering support 1 to achieve uniform support and force distribution. These through holes 11 not only reduce the weight of the centering support 1, but also reduce the reflection and interference of sound waves on the surface of the centering support 1, thereby improving acoustic performance.

[0032] In one embodiment of this utility model, a slot 41 is provided on one side of the U-iron 4 facing the centering support plate 1, and the elastic member 2 is limited to the slot 41.

[0033] In this embodiment, combined with Figure 2To enhance the stability of the elastic element 2, a slot 41 is formed on the side of the U-shaped iron 4 facing the centering support 1, and the elastic element 2 is confined within the slot 41. It is understood that the elastic element 2 can be fixed within the slot 41 not only by snap-fit ​​or threaded connection, but also by adhesive bonding. The dimensions of the slot 41 should match the dimensions of the elastic element 2 to ensure that the elastic element 2 can be tightly embedded within the slot 41, while allowing sufficient space for movement to ensure the normal operation of the elastic element 2. The shape of the slot 41 can be designed according to the specific shape of the elastic element 2. When the elastic element 2 is a spring, the slot 41 can be designed as rectangular or circular to ensure that the spring can be tightly embedded.

[0034] In one embodiment of the present invention, the loudspeaker 100 further includes a buffer 3, which is disposed on the side of the centering support 1 facing the U-shaped iron 4. The buffer 3 is used to buffer and eliminate noise generated by the vibration of the voice coil 7.

[0035] In this embodiment, to further reduce vibration transmission, combined with Figure 2 The buffer 3 is used to cushion and eliminate collision noise. It is understood that the buffer 3 can be a sponge or polyimide foam, preferably a sponge, which can be fixed to the side of the centering support 1 facing the U-shaped iron 4 by means of adhesive bonding, snap-fit ​​connection, threaded structure, etc. Furthermore, combined with... Figure 5 The inner ring 13 of the centering support 1 protrudes towards the outer ring 12 to form a protrusion 16. A sponge is placed below the protrusion 16 (towards the elastic member 2 of the centering support 1), and the sponge connects to the centering support 1. In the first state, the voice coil 7 vibrates towards the U-iron 4, thereby causing the centering support 1 and the buffer member 3 to move towards the U-iron 4, so that the centering support 1 and the buffer member 3 abut against the elastic member 2. In the second state, the voice coil 7 vibrates away from the U-iron 4, thereby causing the centering support 1 and the buffer member 3 to move away from the U-iron 4, at which time the centering support 1 and the buffer member 3 are disengaged from the elastic member 2. The loudspeaker 100 includes four elastic members 2, and correspondingly, four protrusions 16 are arranged around the centering support 1. A sponge is placed on the side of each protrusion 16 facing the elastic member 2 to absorb and buffer collision noise. The above-mentioned arrangement, by placing the buffer 3 on the side of the centering support 1 facing the U-iron 4, can effectively absorb and buffer the force generated by the forward vibration (vibration towards the U-iron 4) or backward vibration (vibration away from the U-iron 4) of the voice coil 7, further reducing the vibration amplitude of the centering support 1, thereby improving the stability and reliability of the loudspeaker 100.

[0036] In one embodiment of this utility model, the buffer 3 is bonded to the centering support 1.

[0037] In this embodiment, the buffer 3 is bonded to the side of the centering support 1 facing the U-shaped iron 4 by adhesive bonding. The buffer 3 is disposed between the centering support 1 and the elastic member 2, and adhesives such as UV glue and epoxy resin can be used, without limitation. The above arrangement ensures that the sponge will not shift during operation.

[0038] In one embodiment of the present invention, the loudspeaker 100 includes four elastic members 2, each elastic member 2 being symmetrically arranged at intervals along the inner side of the U-shaped iron 4; in a first state, the four elastic members 2 abut against the peripheral wall of the centering support 1; in a second state, the four elastic members 2 disengage from the peripheral wall of the centering support 1.

[0039] In this embodiment, in order to improve the stability of the vibration system, combined with Figure 3 Four elastic elements 2 are symmetrically arranged at intervals along the inner side of the U-shaped iron 4, which can evenly disperse the force generated by the vibration of the voice coil 7, reduce local stress concentration, and thus improve the stability of the entire vibration system. At the same time, the presence of the four elastic elements 2 ensures the balance of the centering support 1, ensuring smoother vibration of the voice coil 7. It should be noted that one end of the centering support 1 has a protrusion forming a bump, one side of which is connected to a buffer 3, and one side of the buffer 3 is connected to an elastic element 2, thereby achieving buffering and eliminating collision noise. Simultaneously, due to the presence of the four elastic elements 2, in the first state, the vibration of the centering support 1 towards the U-shaped iron 4 when subjected to the thrust of the voice coil 7 is effectively buffered and limited. Specifically, when the voice coil 7 vibrates towards the U-shaped iron 4, the thrust it generates is transmitted to the centering support 1, causing the centering support 1 to move towards the U-shaped iron 4. At this time, the centering support 1 abuts against the elastic element 2, and the elastic element 2, by virtue of its elastic properties, applies a force to the centering support 1 in the opposite direction of its movement. This force not only effectively buffers the vibration of the centering support 1, preventing it from colliding violently with the U-shaped iron due to excessive vibration and thus reducing noise, but also limits the displacement amplitude of the centering support 1 to a certain extent, ensuring the stability and reliability of the entire vibration system. In the second state, the voice coil 7 vibrates away from the U-shaped iron 4, and the centering support 1 is displaced by the thrust of the voice coil 7. At this time, the centering support 1 disengages from the elastic element 2. However, since the elastic element 2 has stored a certain amount of elastic potential energy in the first state, it can release this stored energy when the centering support 1 vibrates away from the U-shaped iron. This released energy will assist the centering support 1 in vibrating away from the U-shaped iron, thereby enhancing its amplitude. This enhanced amplitude helps improve the acoustic performance of the loudspeaker 100, making the sound clearer, fuller, and more layered. At the same time, this structural design can also effectively reduce the displacement deviation of the voice coil 7 due to inertia during vibration, ensuring the stability and accuracy of the voice coil 7's vibration, and further improving the sound quality of the loudspeaker 100.

[0040] In one embodiment of the present invention, the loudspeaker 100 further includes a washer, which includes a main washer 61 and a secondary washer 62. The main washer 61 is disposed above the magnet 5, and the voice coil 7 is disposed around the outside of the main washer 61. The centering support 1 is located between the secondary washer 62 and the U-shaped iron 4, and the secondary washer 62 is connected to the U-shaped iron 4.

[0041] In this embodiment, combined with Figure 2 and Figure 3 The washer is used to enhance the performance of the magnetic circuit. The voice coil 7 surrounds the outside of the main washer 61, thereby enhancing the structural stability of the entire magnetic circuit system. Understandably, the secondary washer 62 is exposed in the central opening of the centering support 1, and the end of the centering support 1 away from the central opening is connected to the secondary washer 62. The main washer 61 and the secondary washer 62 can be fixed to the magnet 5 and the U-shaped iron 4 by means of adhesive bonding or snap-fit. The washer is typically made of materials with good magnetic permeability and mechanical strength (such as silicon steel sheets, ferrite, etc.). These materials can effectively improve the magnetic properties of the magnetic circuit system, while also possessing good mechanical strength to withstand the forces generated when the voice coil 7 vibrates. The dual arrangement of the main washer 61 and the secondary washer 62 can reduce the reflection and interference of sound waves on the surface of the magnetic circuit system, further optimizing the acoustic performance of the loudspeaker 100.

[0042] In one embodiment of this utility model, a notch 62a is provided at one end of the sub-wafer 62 near the U-iron 4, and the periphery of the centering support 1 abuts against the notch 62a.

[0043] In this embodiment, combined with Figure 4 Notch 62a is used to limit and center the end of the support piece 1 away from the central opening. It is understandable that, in combination with... Figure 4 The sub-wafer 62 is arranged in a ring shape, and its shape and size are adapted to the U-shaped U-shaped iron 4. The size of the notch 62a should match the size of the centering support 1. The above arrangement makes the contact between the centering support 1 and the sub-wafer 62 more stable, reduces the impact force on the sub-wafer 62 when the voice coil 7 vibrates, and thus enhances the structural stability of the entire magnetic circuit system.

[0044] This utility model also proposes an electronic device, which includes a housing and a speaker 100. The specific structure of the speaker 100 is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The speaker 100 is disposed in the inner cavity of the housing.

[0045] In this embodiment, it is understood that the electronic device includes, but is not limited to, head-mounted devices, speaker devices, etc., and is not limited here. The speaker 100 can be fixed to the housing of the electronic device by means of snap-fit, thread, adhesive, etc. The speaker 100 also includes structures such as a diaphragm, which will not be described in detail here.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A loudspeaker, comprising a magnetic circuit system and a vibration system, the magnetic circuit system comprising a magnet, a U-shaped iron, and a washer, wherein a magnetic gap is formed between the U-shaped iron and the magnet, the washer is disposed at the end of the magnet away from the U-shaped iron, and the vibration system comprising a voice coil movably disposed within the magnetic gap, characterized in that, The speaker also includes: A centering support is provided between the U-shaped iron and the washer, and the side of the centering support facing away from the U-shaped iron is connected to the voice coil. An elastic element is disposed on the U-shaped iron and located within the magnetic gap; The speaker has a first state and a second state; in the first state, the centering support plate abuts against the elastic member; in the second state, the centering support plate disengages from the elastic member.

2. The loudspeaker as claimed in claim 1, characterized in that, The centering support plate has a central opening and multiple through holes, with each pair of adjacent through holes spaced apart, and the washer is exposed in the central opening.

3. The loudspeaker as described in claim 2, characterized in that, The centering support includes an outer ring, an inner ring, and at least one connecting strip. Each connecting strip includes two connecting segments and a middle segment. The two connecting segments extend along the direction from the outer ring to the inner ring. Each end of the middle segment is connected to one of the connecting segments. The middle segment extends circumferentially along the inner ring. Each of the connecting strips forms the through hole by enclosing the outer ring and the inner ring respectively.

4. The loudspeaker as claimed in claim 1, characterized in that, The U-shaped iron has a slot on one side facing the centering support plate, and the elastic element is confined within the slot.

5. The loudspeaker as claimed in claim 1, characterized in that, The loudspeaker also includes a buffer, which is disposed on one side of the centering support facing the U-shaped iron. The buffer is used to buffer and eliminate noise generated by the vibration of the voice coil.

6. The loudspeaker as claimed in claim 5, characterized in that, The buffer is bonded to the centering support.

7. The loudspeaker as claimed in any one of claims 1 to 6, characterized in that, The loudspeaker includes four elastic elements, each of which is symmetrically arranged at intervals along the inner side of the U-shaped iron. In the first state, the four elastic elements abut against the peripheral wall of the centering support plate; In the second state, the four elastic elements disengage from the peripheral wall of the centering support plate.

8. The loudspeaker as claimed in any one of claims 1 to 6, characterized in that, The loudspeaker also includes a washer, which includes a main washer and a secondary washer. The main washer is located above the magnet, and the voice coil is arranged around the outside of the main washer. The centering support is located between the secondary washer and the U-shaped iron, and the secondary washer is connected to the U-shaped iron.

9. The loudspeaker as claimed in claim 8, characterized in that, The sub-wafer has a notch at one end near the U-shaped iron, and the periphery of the centering support plate abuts against the notch.

10. An electronic device, characterized in that, include: case; The loudspeaker as described in any one of claims 1 to 9, wherein the loudspeaker is disposed within the inner cavity of the housing.

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