Loudspeaker

Abstract

The embodiment of the utility model discloses a loudspeaker, which is characterized in that a first voice coil and a first vibrating diaphragm are arranged in an accommodating cavity, and a first magnetic part and a second magnetic part are arranged on the outer side of a seat part at an interval. Therefore, by utilizing the first magnetic gap generated between the first magnetic part and the second magnetic part, the first voice coil can drive the first vibrating diaphragm to vibrate under the action of Ampere force. Therefore, the volume occupied by the magnetic assembly on the accommodating cavity is reduced, the distortion of the loudspeaker is reduced, and the loudspeaker is simpler and more convenient to install. Meanwhile, the magnetic field generated by the magnetic assembly exposed outside the seat part can be convenient for electronic components around the loudspeaker to share the magnetic assembly, so that the integration degree of the loudspeaker and the peripheral electronic components is higher, and the product cost is further reduced.

Description

Technical Field

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

[0002] Traditional loudspeakers have their vibration system and magnetic circuit system located on the top and bottom sides, respectively, leaving more space for the voice coil's movement and resulting in an excessively large loudspeaker size. Furthermore, the magnetic circuit system being located inside the loudspeaker also hinders the spatial arrangement of the loudspeaker with other components. Therefore, reducing space occupation and optimizing the loudspeaker's spatial layout has become a problem that needs to be solved. Utility Model Content

[0003] In view of this, the present invention provides a loudspeaker in which the magnetic component is disposed on the outside of the base, thereby reducing the space occupied by the magnetic component in the accommodating cavity. At the same time, it facilitates the sharing of the magnetic component with other components.

[0004] The loudspeaker in this embodiment of the utility model includes:

[0005] The seat has a receiving cavity;

[0006] The moving part includes a first diaphragm and a first voice coil disposed on the first diaphragm, wherein the first voice coil and at least a portion of the first diaphragm are located within the receiving cavity; and

[0007] A magnetic component includes a first magnetic part and a second magnetic part disposed opposite to each other. The first magnetic part and the second magnetic part are disposed on the outside of the base and a first magnetic gap is formed on the opposite sides of the first magnetic part and the second magnetic part. At least a portion of the first voice coil is located in the first magnetic gap.

[0008] Furthermore, the seat has a first mounting surface and a second mounting surface, the first mounting surface and the second mounting surface being located on the outer surface of the seat and facing opposite directions;

[0009] The first magnetic part is mounted on the first mounting surface, and the second magnetic part is mounted on the second mounting surface.

[0010] Furthermore, the moving part also includes:

[0011] Second diaphragm;

[0012] The second voice coil is fixedly connected to the second diaphragm and disposed on the side of the magnetic assembly away from the accommodating cavity, and at least a portion of the second voice coil is located within the magnetic field of the magnetic assembly.

[0013] Furthermore, the magnetic component also includes:

[0014] A magnetic washer is attracted to the first magnetic part, the second diaphragm is fixedly connected to the side of the magnetic washer away from the first magnetic part, and the second voice coil is fixedly connected to the side of the second diaphragm close to the first magnetic part and the second voice coil is located inside the magnetic washer.

[0015] Furthermore, the first magnetic part includes a first magnetic ring, and the magnetic washer is attracted to the first magnetic ring;

[0016] The magnetic component further includes a central magnetic conductor, which includes an inner plate and a column. The inner plate is located on the side of the first magnetic ring near the accommodating cavity and is attracted to the first magnetic ring. The column extends from the center of the first magnetic ring, and a portion of the column forms a second magnetic gap with the opposite side of the magnetic washer. At least a portion of the second voice coil is located in the second magnetic gap.

[0017] Furthermore, the first magnetic part includes a first magnetic ring, and the magnetic washer is attracted to the first magnetic ring;

[0018] At least a portion of the second voice coil is spaced apart from and opposite to the first magnetic ring.

[0019] Furthermore, the first magnetic part also includes a central magnet, which is located at the center of the first magnetic ring and attracts the first magnetic ring;

[0020] The second voice coil is simultaneously positioned opposite to both the central magnet and the first magnetic ring.

[0021] Furthermore, the seat includes a first housing and a second housing, which are fastened together to form the receiving cavity;

[0022] The loudspeaker also includes a connecting part, which is disposed on the base and has an electrical path. One end of the electrical path is located on the outside of the base, and the other end is electrically connected to the first voice coil.

[0023] Furthermore, the first diaphragm includes a diaphragm sheet and conductive patterns formed on the diaphragm sheet, wherein the conductive patterns are respectively disposed corresponding to the electrical pathways;

[0024] One end of the conductive pattern is connected to the first voice coil, and the other end is connected to the end of the corresponding electrical path.

[0025] Furthermore, the base is made of a non-magnetic material and has multiple air holes, which are staggered from the first magnetic part and the second magnetic part.

[0026] In this embodiment of the loudspeaker, a first voice coil and a first diaphragm are disposed within a housing cavity, and a first magnetic portion and a second magnetic portion are spaced apart and disposed on the outer side of the base. Thus, the first magnetic gap generated between the first and second magnetic portions allows the first voice coil to drive the first diaphragm to vibrate under the action of Ampere force. This reduces the volume occupied by the magnetic components in the housing cavity, lowers loudspeaker distortion, and simplifies loudspeaker installation. Simultaneously, the magnetic field generated by the magnetic components exposed on the outer side of the base facilitates the sharing of magnetic components with surrounding electronic components, thereby increasing the integration of the loudspeaker with surrounding electronic components and further reducing product costs. Attached Figure Description

[0027] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0028] Figure 1 This is a schematic diagram of the structure of one side of the speaker provided in the first embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the other side of the speaker provided in the first embodiment of this utility model;

[0030] Figure 3 This is an exploded schematic diagram of the loudspeaker provided in the first embodiment of this utility model;

[0031] Figure 4 This is a cross-sectional schematic diagram of the loudspeaker provided in the first embodiment of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the magnetic component provided in the first embodiment of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the loudspeaker provided in the second embodiment of this utility model;

[0034] Figure 7 This is an exploded schematic diagram of the loudspeaker provided in the second embodiment of the present invention;

[0035] Figure 8 This is a partial cross-sectional schematic diagram of the loudspeaker provided in the second embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of the loudspeaker provided in the third embodiment of this utility model;

[0037] Figure 10 This is an exploded schematic diagram of the loudspeaker provided in the third embodiment of this utility model;

[0038] Figure 11This is a partial cross-sectional schematic diagram provided in the third embodiment of the present invention;

[0039] Figure 12 This is a schematic diagram of the connecting part provided in the fourth embodiment of the present utility model;

[0040] Figure 13 This is an exploded view of the connecting part provided in the fourth embodiment of this utility model;

[0041] Figure 14 This is an exploded view of the connecting part and the first shell provided in the fourth embodiment of this utility model;

[0042] Figure 15 This is an exploded schematic diagram of the loudspeaker provided in the fifth embodiment of this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1-Magnetic component;

[0045] 11-First magnetic part; 111-First magnetic ring; 112-Second magnetic ring; 113-Third magnetic ring; 12-Second magnetic part; 13-Magnetic washer; 14-Central magnetic component; 141-Inner plate; 142-Column; 143-Groove; 15-Central magnet;

[0046] 2-Kinematics Department;

[0047] 21-First diaphragm; 211-Diaphragm; 212-Conductive pattern; 213-Extension region; 22-First voice coil; 23-Second diaphragm; 24-Second voice coil; 25-Dome;

[0048] 3-Seal;

[0049] 31-First housing; 311-Connecting surface; 312-Allowing groove; 32-Second housing; 33-Accommodating cavity; 34-First mounting surface; 35-Second mounting surface; 36-Support lug; 37-Air hole;

[0050] 41 - First magnetic gap; 42 - Second magnetic gap;

[0051] 5-Connecting part;

[0052] 51 - Electrical path; 52 - First connection terminal; 53 - Second connection terminal. Detailed Implementation

[0053] The present invention will now be described based on embodiments, but it is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are described in detail. Those skilled in the art will fully understand the present invention even without these details. To avoid obscuring the essence of the present invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0054] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0055] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0056] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0057] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0059] Figure 1 and Figure 2 This is a schematic diagram of the speaker provided in the first embodiment. Figure 3This is an exploded schematic diagram of the loudspeaker provided in the first embodiment.

[0060] In some implementations, such as Figures 1-3 As shown, the loudspeaker in this embodiment includes a magnetic component 1, a moving part 2, a base 3, and a connecting part 5. The magnetic component 1 is disposed on the outside of the base 3, and the base 3 has a receiving cavity 33 for accommodating the moving part 2. The moving part 2 includes a first diaphragm 21 and a first voice coil 22 fixedly connected to the first diaphragm 21. The first voice coil 22 and at least a portion of the first diaphragm 21 are located in the receiving cavity 33.

[0061] Figure 4 This is a cross-sectional schematic diagram of the loudspeaker provided in the first embodiment. Figure 5 This is a schematic diagram of the structure of the magnetic component 1 provided in the first embodiment.

[0062] Further reference Figures 4-5 As shown, the magnetic assembly 1 includes a first magnetic part 11 and a second magnetic part 12 arranged at intervals and opposite to each other. The first magnetic part 11 and the second magnetic part 12 are disposed on the outer side of the base 3, and a first magnetic gap 41 is formed on the opposite sides of the first magnetic part 11 and the second magnetic part 12. At least a portion of the first voice coil 22 is located in the first magnetic gap 41. When the control circuit supplies power to the first voice coil 22, the first voice coil 22 is subjected to an Ampere force within the first magnetic gap 41, and will reciprocate between the first magnetic part 11 and the second magnetic part 12, thereby causing the first diaphragm 21 to vibrate.

[0063] In summary, in this embodiment, the loudspeaker has a first voice coil 22 and a first diaphragm 21 disposed within the accommodating cavity 33, and a first magnetic part 11 and a second magnetic part 12 spaced apart on the outer side of the base 3. Thus, utilizing the first magnetic gap 41 generated between the first magnetic part 11 and the second magnetic part 12, the first voice coil 22 can drive the first diaphragm 21 to vibrate under the action of Ampere force. This reduces the volume occupied by the magnetic component 1 in the accommodating cavity 33, reduces loudspeaker distortion, and simplifies loudspeaker installation. Simultaneously, the magnetic field generated by the magnetic component 1 exposed on the outer side of the base 3 allows for the sharing of the magnetic component 1 with surrounding electronic components, resulting in higher integration between the loudspeaker and surrounding electronic components, further reducing product costs.

[0064] Specifically, such as Figure 3 As shown, the first voice coil 22 is a planar voice coil. The first voice coil 22 can be a double-sided etched coil. For example, the coil can be formed on a flexible copper-clad laminate by etching, and the formed flexible copper-clad laminate can be attached to the first diaphragm 21 with adhesive. Alternatively, the first voice coil 22 can be formed directly on the first diaphragm 21 by chemical etching or other methods.

[0065] Alternatively, the first voice coil 22 can also be directly wound from copper wire, and the wound first voice coil 22 is fixed together with the first diaphragm 21.

[0066] In some implementations, such as Figure 3 As shown, the seat 3 has a first mounting surface 34 and a second mounting surface 35, which are located on the outer surface of the seat 3 and face opposite directions. Further referencing... Figure 4 As shown, the first magnetic part 11 is mounted on the first mounting surface 34, and the second magnetic part 12 is mounted on the second mounting surface 35.

[0067] Specifically, the base 3 is cylindrical. Both the first mounting surface 34 and the second mounting surface 35 are flat. The first magnetic part 11 and the second magnetic part 12 can be glued to the first mounting surface 34 and the second mounting surface 35 respectively. This avoids the magnetic assembly 1 occupying space within the accommodating cavity 33, and the electronic components on the outside of the base 3 can reuse the magnetic force generated by the magnetic assembly 1, improving the integration level of the device.

[0068] Figure 6 This is a schematic diagram of the structure of the loudspeaker provided in the second embodiment. Figure 7 This is an exploded schematic diagram of the loudspeaker provided in the second embodiment. Figure 8 This is a partial cross-sectional schematic diagram of the loudspeaker provided in the second embodiment. Figure 9 This is a schematic diagram of the structure of the loudspeaker provided in the third embodiment. Figure 10 This is an exploded schematic diagram of the loudspeaker provided in the third embodiment. Figure 11 This is a partial cross-sectional schematic diagram provided in the third embodiment.

[0069] In some implementations, such as Figures 6-11 As shown, the moving part 2 also includes a second diaphragm 23 and a second voice coil 24. The second voice coil 24 is fixedly connected to the second diaphragm 23 and is disposed on the side of the first magnetic part 11 away from the receiving cavity 33, and at least a portion of the second voice coil 24 is located within the magnetic field of the magnetic assembly 1.

[0070] Specifically, in this embodiment, the first diaphragm 21, the first voice coil 22, and the magnetic component 1 form a low-frequency generating unit, while the second diaphragm 23, the second voice coil 24, and the first magnetic part 11 or the second magnetic part 12 form a high-frequency generating unit. Thus, the low-frequency generating unit and the high-frequency generating unit can provide sound waves in different frequency ranges for the speaker, improving the speaker's loudness. The speaker in this embodiment can be used in headphones.

[0071] Optionally, there are two second diaphragms 23 and two voice coils 24. One set of second diaphragms 23 and second voice coils 24, together with the first magnetic part 11, forms a first high-frequency sound-generating unit, while the other set of second diaphragms 23 and second voice coils 24, together with the second magnetic part 12, forms a second high-frequency sound-generating unit. This further enhances the loudness of the high-frequency sound waves.

[0072] In some implementations, such as Figures 6-11 As shown, the magnetic component 1 also includes a magnetic washer 13. The magnetic washer 13 is attracted to the first magnetic part 11, the second diaphragm 23 is fixedly connected to the side of the magnetic washer 13 away from the first magnetic part 11, and the second voice coil 24 is fixed to the side of the second diaphragm 23 close to the first magnetic part 11, and the second voice coil 24 is located inside the magnetic washer 13.

[0073] In this embodiment, the magnetic washer 13 can improve the magnetic field generated by the first magnetic part 11, so that the second voice coil 24 can be appropriately placed within the magnetic field of the first magnetic part 11. In addition, the magnetic washer 13 can also space the second voice coil 24 from the first magnetic part 11, maintaining sufficient space for movement between the second voice coil 24 and the first magnetic part 11.

[0074] In some implementations, such as Figures 6-8 As shown, the first magnetic part 11 includes a first magnetic ring 111, and a magnetic washer 13 is attracted to the first magnetic ring 111. At least a portion of the second voice coil 24 is spaced apart from and opposite to the first magnetic ring 111. The second voice coil 24 can be configured as a planar voice coil, thereby reducing the axial dimension of the second voice coil 24 in the first magnetic ring 111 and preventing the second voice coil 24 from colliding with the first magnetic ring 111.

[0075] In some implementations, such as Figures 7-8 As shown, the first magnetic part 11 also includes a central magnet 15, which is located at the center of the first magnetic ring 111 and is attracted to the first magnetic ring 111. The second voice coil 24 is simultaneously disposed opposite to both the central magnet 15 and the first magnetic ring 111. In this embodiment, the central magnet 15 increases the overall magnetic force of the magnetic component 1, resulting in a higher Ampere force on the second voice coil 24.

[0076] Optionally, a dome 25 can be provided on the side of the second diaphragm 23 away from the accommodating cavity 33 to optimize the vibration of the second diaphragm 23 and further improve the sound quality of the high-frequency sound unit.

[0077] In some implementations, such as Figures 9-11As shown, the first magnetic part 11 includes a first magnetic ring 111, and a magnetically conductive washer 13 is attracted to the first magnetic ring 111. The magnetic assembly 1 also includes a central magnetically conductive member 14. The central magnetically conductive member 14 includes an inner plate 141 and a column 142. The inner plate 141 is located on the side of the first magnetic ring 111 near the receiving cavity 33 and is attracted to the first magnetic ring 111. The column 142 extends from the center of the first magnetic ring 111, and a portion of the column 142 and the opposite side of the magnetically conductive washer 13 form a second magnetic gap 42. At least a portion of the second voice coil 24 is located in the second magnetic gap 42.

[0078] Specifically, the magnetic washer 13 and the central magnetic component 14 can be made of materials such as silicon steel, ferrite, or iron boron. When the magnetic washer 13 and the central magnetic component 14 are attracted to the first magnetic part 11, part of the magnetic force of the magnetic component 1 can act on the second voice coil 24 through the second magnetic gap 42. This optimizes the Ampere force experienced by the second voice coil 24.

[0079] Optionally, a clearance hole is formed at the center of the first mounting surface 34, penetrating the first housing 31. The inner plate 141 is a circular plate located within the clearance hole. The outer edge of the first magnetic ring 111 rests on the first mounting surface 34, and the inner edge of the first magnetic ring 111 is opposite to a portion of the clearance hole. The column 142 extends from the inner plate 141 to the outside of the accommodating cavity 33 and passes through the first magnetic ring 111, with the end of the column 142 opposite to a portion of the magnetically conductive washer 13. The column 142 has a groove 143, the inner surface of the groove 143 and the outer surface of the column 142 are both cylindrical surfaces, thereby further optimizing the conduction of the magnetic field on the central magnetically conductive member 14.

[0080] Preferably, the inner surface of the magnetic washer 13 and the inner surface of the first magnetic ring 111 are both cylindrical surfaces, and they overlap axially. The second voice coil 24 is configured as a cylindrical voice coil. Thus, the first magnetic ring 111 can avoid the second voice coil 24, and the magnetic field within the second magnetic gap 42 is more uniform.

[0081] In some implementations, such as Figures 1-4 As shown, the base 3 includes a first housing 31 and a second housing 32. The first housing 31 and the second housing 32 are fastened together to form an accommodating cavity 33. The speaker also includes a connecting portion 5.

[0082] Figure 12 This is a schematic diagram of the structure of the connecting part 5 provided in the fourth embodiment. Figure 13 This is an exploded view of the connecting part 5 provided in the fourth embodiment. Figure 14 This is an exploded view of the connecting part 5 and the first housing 31 provided in the fourth embodiment. Figure 15 This is an exploded schematic diagram of the loudspeaker provided in the fifth embodiment.

[0083] Further reference Figures 12-15As shown, the connecting part 5 is disposed on the base 3 and has two electrical paths 51. One end of each electrical path 51 is located on the outside of the base 3, and the other end is electrically connected to the first voice coil 22. In this embodiment, the connecting part 5 is used so that the control circuit can supply power to the first voice coil 22 located in the accommodating cavity 33, thereby controlling the vibration of the moving part 2. This simplifies the connection method of the loudspeaker.

[0084] In some implementations, such as Figure 3 and Figure 15 As shown, the first diaphragm 21 includes a diaphragm 211 and two conductive patterns 212 formed on the diaphragm 211. The two conductive patterns 212 are respectively disposed corresponding to two electrical paths 51. One end of each of the two conductive patterns 212 is connected to the first voice coil 22, and the other end is connected to the end of the corresponding electrical path 51.

[0085] Specifically, the conductive pattern 212 can be a nano-silver wire coating disposed on the side of the first diaphragm 21. When the first voice coil 22 is attached to the first diaphragm 21, the two connecting ends of the first voice coil 22 can be electrically connected to the ends of the two nano-silver wire coatings respectively. The two conductive patterns 212 extend from the first voice coil 22 to the edge of the first diaphragm 21 to facilitate connection with the connecting part 5.

[0086] In some implementations, such as Figure 14 As shown, the first housing 31 has a connecting surface 311, which connects the first housing 31 to the edge of the first diaphragm 21. An clearance groove 312 is formed in the connecting surface 311. (Reference) Figure 12 As shown, the connecting part 5 is a flexible printed circuit board, which includes a first connecting end 52 and a second connecting end 53. The two ends of each electrical path 51 are respectively located at the first connecting end 52 and the second connecting end 53. Further referencing... Figure 4 As shown, the first connecting end 52 is disposed on the outer surface of the first housing 31, and the second connecting end 53 extends into the clearance groove 312 along the outer surface of the first housing 31, with the ends of the two electrical paths 51 respectively abutting against the two conductive patterns 212. In this embodiment, the flexibility of the flexible circuit board is utilized, allowing the flexible circuit board to be attached to the first housing 31, reducing the volume occupied by the speaker.

[0087] Specifically, the first connecting end 52 is located at the edge of the first mounting surface 34. The second connecting end 53 extends from the side of the first housing 31 into the clearance groove 312. The electrical path 51 includes a first contact and a second contact. The first contact is exposed on the first connecting end 52 and faces away from the first mounting surface 34. The second contact is exposed on the second connecting end 53 and faces the first diaphragm 21. When the first housing 31 and the second housing 32 are clamped at the edge of the first diaphragm 21, the second contact can just abut against the end of the conductive pattern 212, and the other end of the conductive pattern 212 extends toward the center of the first diaphragm 21 and connects to the first voice coil 22. Thus, the electrical connection between the connecting part 5 and the first voice coil 22 is realized.

[0088] In some implementations, such as Figure 5 As shown, the base 3 also includes a lug 36, which protrudes from the outer surface of the second housing 32. The diaphragm 211 includes an extension area 213, which is disposed at the edge of the diaphragm 211 and extends to the lug 36. The ends of the two conductive patterns 212 extend to the extension area 213. The connecting part 5 is a rigid circuit board, i.e., a PCB board. The two opposing surfaces of the rigid circuit board form a first connecting end 52 and a second connecting end 53, respectively. The two ends of each electrical path 51 are respectively disposed at the first connecting end 52 and the second connecting end 53. The rigid circuit board is disposed in the extension area 213, and the ends of the two electrical paths 51 disposed at the second connecting end 53 abut against the two conductive patterns 212.

[0089] Specifically, the lug 36 extends horizontally to the side of the second housing 32. The lug 36 is used to support the rigid circuit board and the extension area 213. When the rigid circuit board is mounted on the extension area 213, the orientation of the first contact can be exactly aligned with the orientation of the first mounting surface 34.

[0090] In some implementations, such as Figures 1-4 As shown, the base 3 is made of a non-magnetic material and has multiple air holes 37, which are staggered from the first magnetic part 11 and the second magnetic part 12. Therefore, by configuring the base 3 as a non-magnetic material, the magnetic force of the magnetic component 1 is prevented from being affected.

[0091] Specifically, the base 3 can be made of metal such as aluminum or copper, or non-metallic materials such as plastic and rubber. Both the first magnetic part 11 and the second magnetic part 12 include a first magnetic ring 111, a second magnetic part 12, and a third magnetic ring 113. Multiple air holes 37 are simultaneously opened on the first mounting surface 34 and the second mounting surface 35. The accommodating cavity 33 communicates with the outside through the air holes 37. The air holes 37 are located outside the first magnetic ring 111 and are evenly distributed.

[0092] In some implementations, such as Figure 5As shown, the magnetic component 1 is configured such that the polarity of the first magnetic part 11 is mirror-symmetrical to the polarity of the second magnetic part 12. Specifically, the south pole (S) of the third magnetic ring 113 is located away from the first magnetic gap 41, and the north pole (N) is located towards the first magnetic gap 41. The south pole (S) of the second magnetic ring 112 faces the first magnetic ring 111, and the north pole (N) faces the third magnetic ring 113. The polarity of the first magnetic ring 111 is opposite to that of the third magnetic ring 113.

[0093] Furthermore, such as Figure 8 As shown, the central magnet 15 has a cylindrical structure, with the north pole N of the central magnet 15 facing the cavity 33 and the south pole S away from the cavity 33.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A loudspeaker, characterized by The loudspeaker comprises: a seat (3) having a containing cavity (33); a moving part (2) comprising a first diaphragm (21) and a first voice coil (22) arranged on the first diaphragm (21), the first voice coil (22) and at least part of the first diaphragm (21) being located in the containing cavity (33); and a magnetic assembly (1) comprising a first magnetic part (11) and a second magnetic part (12) arranged oppositely, the first magnetic part (11) and the second magnetic part (12) being arranged outside the seat (3) and the opposite sides of the first magnetic part (11) and the second magnetic part (12) forming a first magnetic gap (41), at least part of the first voice coil (22) being located in the first magnetic gap (41).

2. The loudspeaker of claim 1, wherein, The seat (3) has a first mounting surface (34) and a second mounting surface (35), the first mounting surface (34) and the second mounting surface (35) being located on the outer surface of the seat (3) and facing oppositely; The first magnetic part (11) is mounted on the first mounting surface (34), and the second magnetic part (12) is mounted on the second mounting surface (35).

3. The loudspeaker of claim 2, wherein, The moving part (2) further comprises: a second diaphragm (23); a second voice coil (24) fixedly connected with the second diaphragm (23) and arranged on the side of the magnetic assembly (1) away from the containing cavity (33), and at least part of the second voice coil (24) being located in the magnetic field of the magnetic assembly (1).

4. The loudspeaker of claim 3, wherein, The magnetic assembly (1) further comprises: a magnetically conductive washer (13) attracted to the first magnetic part (11), the second diaphragm (23) being fixedly connected to the side of the magnetically conductive washer (13) away from the first magnetic part (11), the second voice coil (24) being fixedly connected to the side of the second diaphragm (23) close to the first magnetic part (11), and the second voice coil (24) being located inside the magnetically conductive washer (13).

5. The loudspeaker of claim 4, wherein, The first magnetic part (11) comprises a first magnetic ring (111), and the magnetically conductive washer (13) is attracted to the first magnetic ring (111); The magnetic assembly (1) further comprises a central magnetically conductive member (14), the central magnetically conductive member (14) comprising an inner plate (141) and a column (142), the inner plate (141) being located on the side of the first magnetic ring (111) close to the containing cavity (33) and being attracted to the first magnetic ring (111), and the column (142) extending from the center of the first magnetic ring (111), and part of the column (142) and the opposite side of the magnetically conductive washer (13) forming a second magnetic gap (42), at least part of the second voice coil (24) being located in the second magnetic gap (42).

6. The loudspeaker of claim 4, wherein, The first magnetic part (11) comprises a first magnetic ring (111), and the magnetically conductive washer (13) is attracted to the first magnetic ring (111); At least part of the second voice coil (24) is spaced apart from and arranged oppositely to the first magnetic ring (111).

7. The loudspeaker of claim 6, wherein, The first magnetic part (11) further comprises a center magnet (15) located at the center of the first magnetic ring (111) and attracted to the first magnetic ring (111); The second voice coil (24) is arranged opposite to the center magnet (15) and the first magnetic ring (111) at the same time.

8. The loudspeaker of claim 1, wherein, The seat part (3) comprises a first shell (31) and a second shell (32), and the first shell (31) and the second shell (32) are buckled to form the accommodating cavity (33); The loudspeaker further comprises a connecting part (5) provided on the seat part (3) and having an electric passage (51), one end of the electric passage (51) being located outside the seat part (3), and the other end being electrically connected with the first voice coil (22).

9. The loudspeaker of claim 8, wherein, The first diaphragm (21) comprises a diaphragm (211) and a conductive pattern (212) formed on the diaphragm (211), and the conductive pattern (212) is arranged corresponding to the electric passage (51) respectively. One end of the conductive pattern (212) is connected with the first voice coil (22), and the other end is connected with the end of the corresponding electric passage (51).

10. The loudspeaker of any one of claims 1-9, wherein, The seat part (3) is made of a non-magnetic material, and a plurality of air holes (37) are formed in the seat part (3), and the plurality of air holes (37) are arranged staggered with the first magnetic part (11) and the second magnetic part (12).

Images