Loudspeaker and open earphone

Abstract

The utility model discloses a loudspeaker and an open earphone, the loudspeaker comprises a magnetic circuit system, a vibration system and a plurality of elastic members, the magnetic circuit system comprises a frame and a magnetic circuit assembly arranged on the frame, and a magnetic gap is formed between the magnetic circuit assembly and the frame; the vibration system comprises a diaphragm and a voice coil, the edge of the diaphragm is connected with the frame, the first end of the voice coil is inserted into the magnetic gap, and the second end of the voice coil is connected with the diaphragm; the plurality of elastic parts are all located between the voice coil and the basin frame, the plurality of elastic parts are arranged at intervals around the circumferential direction of the voice coil, the first ends of the elastic parts are connected with the voice coil, a plurality of avoiding grooves are formed in the side, away from the vibrating diaphragm, of the basin frame, and each avoiding groove corresponds to one elastic part. According to the embodiment of the invention, the polarization displacement of the voice coil can be reduced by arranging the elastic piece, and the interference between the elastic piece and the basin frame in the vibration process is reduced, so that the low-frequency output stability of the loudspeaker is improved.

Description

Technical Field

[0001] This application relates to the field of acoustic device technology, and more particularly to a loudspeaker and an open-back headphone. Background Technology

[0002] Miniature loudspeakers are used in various audio and information communication devices, thus the requirements for low-frequency output performance of miniature loudspeaker units are becoming increasingly stringent. In related technologies, the voice coil in a miniature loudspeaker can only be fixed and supported by a single diaphragm. When the voice coil vibrates, it is prone to unbalanced vibration, which affects the low-frequency output of the miniature loudspeaker. Utility Model Content

[0003] This application provides a loudspeaker and an open-back headphone that can reduce the polarization displacement of the voice coil and improve the stability of the loudspeaker's low-frequency output.

[0004] In a first aspect, embodiments of this application provide a loudspeaker, including:

[0005] A magnetic circuit system includes a basin stand and a magnetic circuit assembly disposed on the basin stand, wherein a magnetic gap is formed between the magnetic circuit assembly and the basin stand.

[0006] A vibration system includes a diaphragm and a voice coil, wherein the edge of the diaphragm is connected to the frame, a first end of the voice coil is inserted into the magnetic gap, and a second end of the voice coil is connected to the diaphragm;

[0007] Multiple elastic elements are located between the voice coil and the frame, and the multiple elastic elements are arranged circumferentially around the voice coil. The first end of the elastic element is connected to the voice coil, and the second end of the elastic element is connected to the frame.

[0008] The side of the frame away from the diaphragm is provided with a plurality of clearance grooves, and each clearance groove is provided corresponding to one of the elastic elements.

[0009] Secondly, embodiments of this application also provide an open-back headphone, including a housing and a speaker as described in any of the above embodiments, wherein the speaker is disposed inside the housing.

[0010] Based on the speaker and open-back headphones in this application embodiment, the diaphragm and elastic element are respectively connected to the opposite ends of the voice coil, so that the diaphragm and elastic element can exert force on the voice coil simultaneously, increasing the force points of the voice coil, thereby reducing the polarization of the voice coil, that is, reducing the friction between the voice coil and the magnetic circuit system; at the same time, the clearance groove can prevent the elastic element from interfering with the frame, ensuring that the elastic element remains stable during vibration, further optimizing the overall performance of the speaker and improving the stability of the speaker's low-frequency output. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the first-view structure of a loudspeaker in one embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the second-view structure of the loudspeaker in one embodiment of this application;

[0014] Figure 3 This is a schematic diagram of the connecting ring, elastic element, and part of the basin frame in one embodiment of this application;

[0015] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of the loudspeaker along the AA direction;

[0016] Figure 5 This is a schematic diagram of the connecting ring and elastic element in one embodiment of this application.

[0017] Figure label:

[0018] 1. Speaker;

[0019] 10. Magnetic circuit system; 11. Sink frame; 111. Clearance groove; 112. Top wall; 113. Side wall; 114. Bottom wall; 12. Magnetic circuit assembly; 121. Magnet; 122. Washer; 13. Connecting ring; 14. Copper ring;

[0020] 20. Vibration system; 21. Diaphragm; 211. Dome; 222. Surround; 223. Connecting part; 22. Voice coil;

[0021] 30. Elastic element; 31. First connecting line. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] In related technologies, the magnetic circuit system and the vibration system of a miniature loudspeaker need to be coaxially aligned. Since achieving zero concentricity during installation is impossible, the concentricity difference leads to asymmetry in the vibrational forces during diaphragm vibration. This causes the voice coil in the miniature loudspeaker to polarize the diaphragm. With the voice coil supported only by a single diaphragm, the asymmetry of the components in the loudspeaker system results in uneven horizontal force on the voice coil during vibration. This easily leads to unbalanced vibration of the voice coil, thus affecting the low-frequency output of the miniature loudspeaker.

[0024] Regarding the above situation, firstly, please refer to [link / reference needed]. Figures 1-4 This application proposes a loudspeaker 1, including a magnetic circuit system 10, a vibration system 20, and a plurality of elastic elements 30. The magnetic circuit system 10 includes a frame 11 and a magnetic circuit assembly 12 disposed on the frame 11, with a magnetic gap formed between the magnetic circuit assembly 12 and the frame 11. The vibration system 20 includes a diaphragm 21 and a voice coil 22. The edge of the diaphragm 21 is connected to the frame 11. The first end of the voice coil 22 is inserted into the magnetic gap, and the second end of the voice coil 22 is connected to the diaphragm 21. The plurality of elastic elements 30 are all located between the voice coil 22 and the frame 11. The plurality of elastic elements 30 are arranged circumferentially around the voice coil 22. The first end of the elastic element 30 is connected to the voice coil 22, and the second end of the elastic element 30 is connected to the frame 11. The frame 11 has a plurality of clearance grooves 111 on the side away from the diaphragm 21, and each clearance groove 111 is correspondingly provided with one elastic element 30.

[0025] Specifically, the frame 11 is used to fix the magnetic circuit assembly 12 and correct the magnetic lines of force of the magnetic circuit assembly 12. The first end of the voice coil 22 is located in the magnetic gap, which facilitates the vibration of the voice coil 22 to produce sound. The frame 11 has an opening, the diaphragm 21 covers the opening and the edge of the diaphragm 21 is connected to the frame 11. For example, the axial direction M of the voice coil 22 extends in the vertical direction and the radial direction of the voice coil 22 extends in the horizontal direction. The voice coil 22 is located below the diaphragm 21 and is connected to the diaphragm 21, that is, the diaphragm 21 is connected to the top of the voice coil 22. Therefore, the diaphragm 21 exerts a force on the voice coil 22 in the vertical direction, and the voice coil 22 can drive the diaphragm 21 to vibrate together in the vertical direction. Meanwhile, the elastic element 30 is connected to the voice coil 22 and the frame 11, so the elastic element 30 can also exert a force on the voice coil 22. At this time, the voice coil 22 will be subjected to two forces in different directions. The diaphragm 21 can drive the vibration system 20 to vibrate and produce sound. The elastic element 30 can limit the polarization displacement of the voice coil 22, thereby improving the stability of the low-frequency output of the speaker 1. In this embodiment, by setting multiple elastic elements 30, the stability of the voice coil 22 during vibration is significantly improved, thereby effectively improving the low-frequency output of the speaker 1 and enhancing the clarity and balance of the sound. At the same time, the clearance groove 111 can provide clearance space for the elastic element 30. When the speaker 1 is working, the clearance groove 111 can prevent the elastic element 30 from interfering with other components, ensuring that the elastic element 30 remains stable during vibration, thereby improving the stability of the low-frequency output of the speaker 1.

[0026] For example, the first end of the elastic element 30 can be connected to the first end of the voice coil 22, or the first end of the elastic element 30 can be connected to the side wall of the voice coil 22; no specific limitation is made here. The top of the voice coil 22 can be directly glued to the diaphragm 21. The glue includes, but is not limited to, solvent-based glue, UV glue, etc. The specific sound-generating principle of the speaker 1 has been disclosed in related technologies and will not be elaborated here.

[0027] It should be noted that in this embodiment, both the diaphragm 21 and the elastic element 30 are connected to the voice coil 22, allowing both to exert forces on the voice coil 22 simultaneously. This increases the number of stress points on the voice coil 22. The force between the diaphragm 21 and the voice coil 22 enables the voice coil 22 to vibrate vertically and produce sound. The force between the elastic element 30 and the voice coil 22 provides the voice coil 22 with resistance to polarization. Furthermore, the elastic element 30 provides the necessary elastic restoring force to the voice coil 22 during its vibration, thereby reducing the polarization of the voice coil 22 and reducing friction between the voice coil 22 and the magnetic circuit system 10. Simultaneously, the clearance groove 111 prevents interference between the elastic element 30 and other components, ensuring the elastic element 30 remains stable during vibration, further optimizing the overall performance of the speaker 1 and improving sound quality. The depth and width of the clearance groove 111 can be set according to the size of the elastic element 30 to ensure that the elastic element 30 can freely expand and contract when the speaker 1 vibrates without being over-compressed. At the same time, the reasonable layout of the clearance groove 111 also helps the air to circulate inside the speaker 1, reduces heat accumulation, and further improves the stability and durability of the speaker 1.

[0028] It should also be noted that the multiple elastic elements 30 arranged circumferentially around the voice coil 22 allow for sound transmission and reduce suppression of the voice coil 22's vibration along its axial direction M. In other words, the elastic elements 30 are distributed circumferentially around the voice coil 22. This spacing helps distribute the vibrational stress from the voice coil 22, avoiding fatigue damage caused by stress concentration. Furthermore, the spacing of the elastic elements 30 has a smaller impact on the compliance of the vibration system 20, resulting in smoother vibration of the diaphragm 21, reducing sound distortion, and improving the low-frequency output of the speaker 1. The vibration generated by the voice coil 22 is simultaneously borne by the diaphragm 21 and the elastic elements 30. While limiting the polarization of the voice coil 22, the elastic elements 30 also possess a certain deformation buffering capacity, thus helping to absorb excess energy that may be generated during the vibration of the voice coil 22, reducing unnecessary resonance, and consequently enhancing the clarity and power of the speaker 1's low-frequency output.

[0029] In some embodiments, such as Figure 4As shown, the diaphragm 21 includes a dome 211, a pleated ring 222 surrounding the dome 211, and a connecting portion 223 located at the edge of the pleated ring 222. The connecting portion 223 is connected to the frame 11, and the voice coil 22 is connected to the edge of the dome 211. For example, the connection between the second end of the voice coil 22 and the edge of the dome 211 is fixed with a high-strength adhesive to ensure that the connecting portion 223 will not loosen during vibration. The dome 211 can be a planar structure; or it can be an arc-shaped structure that protrudes away from the voice coil 22; or it can be an arc-shaped structure that is recessed towards the voice coil 22. In this embodiment, the shape of the dome 211 is not specifically limited. The shape of the dome 211 can be set according to acoustic requirements to adjust the sound diffusion angle and frequency response, thereby optimizing the acoustic performance of the loudspeaker 1. At the same time, the setting of the surround 222 needs to take into account its elasticity and damping characteristics to ensure that it can effectively absorb and disperse energy during vibration and reduce resonance phenomena.

[0030] Please see Figure 4 In some embodiments of this application, the magnetic circuit assembly 12 further includes a magnet 121 and a washer 122 disposed in the frame 11. The washer 122 is disposed on the side of the magnet 121 near the diaphragm 21, and a magnetic gap is formed between the peripheral sidewall of the frame 11 and the magnet 121 and the washer 122.

[0031] Understandably, the voice coil 22 is fitted around the outer periphery of the magnet 121, with the magnet 121 spaced apart from the side wall of the frame 11. The magnetic gap is located between the magnet 121 and the side wall of the frame 11. The elastic element 30 reduces the polarization displacement of the voice coil 22. That is, when the polarization displacement of the voice coil 22 is smaller, the gap size of the magnetic gap can be set smaller, thus bringing the voice coil 22 closer to the dense magnetic field lines of the magnetic circuit assembly 12. At this time, the Lorentz force on the voice coil 22 is greater, resulting in higher driving efficiency and louder output sound for the speaker 1. At the same time, the combination of the washer 122 and the magnet 121 can effectively guide the distribution of magnetic field lines, ensuring that the voice coil 22 is always in the optimal magnetic field environment during vibration. The washer 122 further optimizes the magnetic circuit system 10, enhances the uniformity of the magnetic field, makes the magnetic force on the voice coil 22 more stable during movement, reduces low-frequency output distortion of the speaker 1, and improves sound quality.

[0032] In some embodiments, the dome 211 is an arc-shaped structure recessed towards the voice coil 22, and the washer 122 is located below the recessed dome 211. Grooves can be formed at the corresponding positions of the washer 122 and the dome 211. The grooves can prevent the dome 211 and the washer 122 from colliding, and can also increase the cavity volume below the diaphragm 21, which is beneficial to increase the compliance of the speaker 1 and reduce the resonant frequency of the speaker 1.

[0033] Please see Figures 1-2 In some embodiments of this application, the basin frame 11 includes a top wall 112, a peripheral side wall 113, and a bottom wall 114. The top wall 112 and the bottom wall 114 are disposed opposite to each other. The peripheral side wall 113 is located between the top wall 112 and the bottom wall 114 and connects the top wall 112 and the bottom wall 114. The edge of the diaphragm 21 is connected to the top wall 112, the second end of the elastic member 30 is connected to the peripheral side wall 113, and the clearance groove 111 penetrates the bottom wall 114 and part of the peripheral side wall 113.

[0034] Specifically, the edge of the diaphragm 21 is connected to the top wall 112, and the voice coil 22 is located below the diaphragm 21 and connected to it, meaning the top of the diaphragm 21 is connected to the top of the voice coil 22. Therefore, the diaphragm 21 exerts a vertical force on the voice coil 22, allowing the voice coil 22 to drive the diaphragm 21 to vibrate vertically. The clearance groove 111 penetrates the bottom wall 114 and part of the peripheral side wall 113 of the frame 11, forming an open structure. This provides sufficient clearance space for the elastic element 30 and the voice coil 22, ensuring that the elastic element 30 is not obstructed during vibration and reducing friction between the voice coil 22 and the frame 11 during vibration, further reducing the risk of resonance. Simultaneously, the clearance groove 111 facilitates adjustments to the installation of the voice coil 22 and the magnetic circuit assembly 12, improving assembly accuracy and reducing assembly errors. The clearance groove 111 penetrates the peripheral sidewall 113, so a portion of the groove sidewall of the clearance groove 111 is located on the peripheral sidewall 113. The second end of the elastic member 30 is connected to the groove sidewall of the clearance groove 111 on the peripheral sidewall 113, which facilitates the corresponding setting of the elastic member 30 and the clearance groove 111.

[0035] Please see Figure 3 In some embodiments of this application, the line connecting the first end of the elastic member 30 and the second end of the elastic member 30 is a first connecting line 31, and the extension direction of the first connecting line 31 is parallel to the radial direction of the voice coil 22.

[0036] Specifically, the diaphragm 21 is connected to the top of the voice coil 22, so the diaphragm 21 exerts a vertical force on the voice coil 22; the elastic element 30 is connected to the voice coil 22 and the frame 11, and the extension direction of the first connecting line 31 on the elastic element 30 is parallel to the radial direction of the voice coil 22, so the elastic element 30 can exert a horizontal force on the voice coil 22. At this time, the voice coil 22 will be subjected to two forces in different directions. The vertical force can drive the vibration system 20 to vibrate and produce sound, and the horizontal force can limit the polarization displacement of the voice coil 22.

[0037] It should be noted that the extension direction of the first connecting line 31 on the elastic element 30 is parallel to the radial direction of the voice coil 22. That is, the force exerted by the elastic element 30 on the voice coil 22 is along the radial direction of the voice coil 22. Compared with the case where the direction of the force exerted by the elastic element 30 on the voice coil 22 forms an angle with the radial direction of the voice coil 22, the force exerted by the elastic element 30 on the voice coil 22 in this application can further reduce the radial polarization displacement of the voice coil 22, thereby further limiting the swaying mode generated when the voice coil 22 makes a large vertical displacement. In other words, the design of the elastic element 30 can reduce the polarization displacement of the voice coil 22 and reduce nonlinear distortion, thereby improving the stability of the low-frequency output of the speaker 1. In this embodiment, by setting the elastic element 30, the stability of the voice coil 22 during the vibration process is significantly improved, thereby effectively improving the low-frequency output of the speaker 1 and enhancing the clarity and balance of the sound.

[0038] In some embodiments of this application, such as Figure 4 As shown, the first end of the elastic element 30 is connected to the first end of the voice coil 22. It is easy to understand that, compared to the elastic element 30 being connected to the side wall of the voice coil 22, the diaphragm 21 and the elastic element 30 are respectively connected to the upper and lower ends of the voice coil 22. This arrangement is more conducive to limiting the polarization of the voice coil 22. When the speaker 1 is operating, the elastic element 30 and the diaphragm 21 work together to enhance the stability of the voice coil 22 and improve the low-frequency output of the speaker 1.

[0039] Please see Figures 4-5 In some embodiments of this application, the projected shape of the elastic element 30 is a wavy line or an arc shape on a plane parallel to the axial direction M of the voice coil 22 and the first connecting line 31.

[0040] Specifically, when the voice coil 22 vibrates along its axial direction M, the elastic element 30 can undergo elastic deformation, thus reducing the restriction on the vibration of the voice coil 22 along its axial direction M. The wavy or arc-shaped design of the elastic element 30 allows it to possess a certain degree of flexibility and adaptability during vibration, helping to disperse the vibration force of the voice coil 22 and adapt to various dynamic changes generated during the operation of the speaker 1. At the same time, it can effectively reduce the amplitude of the vibration of the voice coil 22 transmitted to the frame 11, thereby further reducing noise generation and enabling the speaker 1 to maintain a low distortion rate even at high output volumes. The elastic element 30 can be made of organic polymers such as polyetheretherketone (PEEK), polyurethane (PU), or other materials such as polymeric elastic rubber or silicone, to adapt to different usage environments and the performance requirements of the speaker 1.

[0041] In some embodiments, such as Figure 3As shown, multiple elastic elements 30 are evenly arranged around the circumference of the voice coil 22. Specifically, the even arrangement of the multiple elastic elements 30 means that they have the same spacing in the circumferential direction of the voice coil 22, which is conducive to forming a balanced support structure, thereby providing more comprehensive support for the voice coil 22. Furthermore, the even spacing of the elastic elements 30 helps to evenly distribute the vibration stress from the voice coil 22, avoiding fatigue damage caused by stress concentration. In this embodiment, the number and shape of the elastic elements 30 are not specifically limited; for example, the number of elastic elements 30 can be 3, 4, 5, etc.

[0042] In some embodiments of this application, such as Figures 2-3 As shown, there are three elastic elements 30. The three elastic elements 30 are evenly spaced along the circumference of the voice coil 22. The line connecting the first end and the second end of each elastic element 30 is parallel to the radial direction of the voice coil 22 and intersects the axial direction M of the voice coil 22. The two connecting lines on two adjacent elastic elements 30 form an angle of 120°.

[0043] It should be noted that the three evenly spaced elastic elements 30 can stably suppress the polarization of the voice coil 22 while maintaining sufficient elasticity to cope with various dynamic changes in the voice coil 22 during vibration. If only two elastic elements 30 are provided, they cannot effectively cover the entire circumference of the voice coil 22, resulting in a higher free end of the voice coil 22. This can easily lead to uneven support for the voice coil 22 and fail to effectively reduce the polarization of the voice coil 22. If four or more elastic elements 30 are provided, on the one hand, the spacing between the elastic elements 30 may be too small, increasing the risk of interference and affecting the degree of freedom of the voice coil 22's vibration, thereby reducing the sound quality of the speaker 1. On the other hand, more clearance slots 111 need to be opened on the frame 11 corresponding to the elastic elements 30, which will cause the speaker 1 to lose more magnetic conversion efficiency. Therefore, the arrangement of three elastic elements 30 can achieve the best support effect for the voice coil 22 while ensuring stability and flexibility.

[0044] Please see Figures 3-4 In some embodiments of this application, a connecting ring 13 is provided on the basin frame 11, and a plurality of elastic elements 30 are located inside the connecting ring 13 and are arranged at intervals along the circumference of the connecting ring 13. The elastic elements 30 are connected to the basin frame 11 through the connecting ring 13.

[0045] It is easy to understand that the connecting ring 13 can fix the multiple elastic elements 30, enhancing the stability of the overall structure. The connection ring 13 not only facilitates the installation and positioning of the multiple elastic elements 30, but also effectively disperses the force generated by the vibration of the multiple elastic elements 30 when the speaker 1 is working, avoiding local overload and thus extending the service life of the speaker 1. In addition, the connection ring 13 facilitates the subsequent replacement of the elastic elements 30, reducing maintenance costs. The connection ring 13 can be made of high-strength materials, such as metal, which can ensure the connection stability of the elastic elements 30 and ensure the durability of the speaker 1 during operation.

[0046] For example, the second ends of multiple elastic elements 30 can be formed by thermoforming around the connecting ring 13, making the connection more secure and improving the integrity and aesthetics of the connecting ring 13 and the elastic elements 30. Furthermore, in this embodiment, the joint between the connecting ring 13 and the frame 11 can be precisely polished to improve their fit, thereby reducing noise caused by a large gap between the connecting ring 13 and the frame 11. This allows the speaker 1 to maintain optimal sound quality during playback, providing users with an immersive listening experience.

[0047] Further, please see Figure 4 In some embodiments of this application, a copper ring 14 is also provided on the basin frame 11, and the edge of the diaphragm 21 is connected to the basin frame 11 through the copper ring 14. The copper ring 14 and the connecting ring 13 are spaced apart.

[0048] As is easily understood, the copper ring 14 is located between the diaphragm 21 and the frame 11. One side of the copper ring 14 is connected to the diaphragm 21, and the other side of the copper ring 14 is connected to the frame 11. The copper ring 14 can make the contact surface between the diaphragm 21 and the frame 11 more uniform, reduce the distortion of the diaphragm 21 caused by uneven glue distribution, thereby improving the stability of the diaphragm 21 and improving the stability of sound quality. At the same time, when the diaphragm 21 moves with a large amplitude, the setting of the copper ring 14 can reduce the occurrence of the diaphragm 21 detaching from the edge. The buffering effect of the copper ring 14 also helps to extend the service life of the diaphragm 21.

[0049] It should be noted that the copper ring 14 and the connecting ring 13 are spaced apart on the frame 11. The part of the frame 11 between the copper ring 14 and the connecting ring 13 forms a magnetic gap with the middle magnet 121, so that the voice coil 22 can be inserted and a magnetic field is provided for the voice coil 22, so that the voice coil 22 can vibrate freely in the magnetic field and cooperate with the diaphragm 21.

[0050] In some embodiments, the loudspeaker 1 may further include a tuning damper, with a sound outlet on the frame 11, the tuning damper covering the sound outlet, the tuning damper being used to reduce excessively high peak values ​​in the vibration system 20 to obtain an ideal frequency response curve.

[0051] Secondly, embodiments of this application also provide an open-back headphone, including a housing (not shown in the figure) and a speaker 1 as described in any of the above embodiments, wherein the speaker 1 is disposed inside the housing to provide installation space and support for the speaker 1.

[0052] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A loudspeaker, characterized in that, include: A magnetic circuit system includes a basin stand and a magnetic circuit assembly disposed on the basin stand, wherein a magnetic gap is formed between the magnetic circuit assembly and the basin stand. A vibration system includes a diaphragm and a voice coil, wherein the edge of the diaphragm is connected to the frame, a first end of the voice coil is inserted into the magnetic gap, and a second end of the voice coil is connected to the diaphragm; Multiple elastic elements are located between the voice coil and the frame, and the multiple elastic elements are arranged circumferentially around the voice coil. The first end of the elastic element is connected to the voice coil, and the second end of the elastic element is connected to the frame. The side of the frame away from the diaphragm is provided with a plurality of clearance grooves, and each clearance groove is provided corresponding to one of the elastic elements.

2. The loudspeaker according to claim 1, characterized in that, The basin stand includes a top wall, a peripheral side wall, and a bottom wall, with the top wall and the bottom wall arranged opposite to each other, and the peripheral side wall connecting the top wall and the bottom wall; The edge of the diaphragm is connected to the top wall, the second end of the elastic element is connected to the peripheral side wall, and the clearance groove penetrates the bottom wall and part of the peripheral side wall.

3. The loudspeaker according to claim 1, characterized in that, The first end of the elastic element is connected to the first end of the voice coil.

4. The loudspeaker according to claim 1, characterized in that, The line connecting the first end and the second end of the elastic element is a first connecting line, and the extension direction of the first connecting line is parallel to the radial direction of the voice coil.

5. The loudspeaker according to claim 4, characterized in that, On a plane parallel to the axial direction of the voice coil and the first connecting line, the projected shape of the elastic element is a wavy line or an arc.

6. The loudspeaker according to claim 1, characterized in that, The elastic element is provided in three parts, and the three elastic elements are evenly spaced along the circumference of the voice coil.

7. The loudspeaker according to claim 1, characterized in that, The basin frame is provided with a connecting ring, and a plurality of elastic elements are located inside the connecting ring and are arranged at intervals along the circumference of the connecting ring. The elastic elements are connected to the basin frame through the connecting ring.

8. The loudspeaker according to claim 7, characterized in that, The basin frame is also provided with a copper ring, and the edge of the diaphragm is connected to the basin frame through the copper ring. The copper ring and the connecting ring are spaced apart.

9. The loudspeaker according to claim 1, characterized in that, The magnetic circuit assembly also includes a magnet and a washer disposed in the frame, the washer being disposed on the side of the magnet near the diaphragm, and the magnetic gap being formed between the peripheral sidewall of the frame and the magnet and the washer.

10. An open-back headphone, characterized in that, It includes a housing and a speaker as described in any one of claims 1 to 9, wherein the speaker is disposed inside the housing.

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