Loudspeaker

Abstract

The utility model relates to a loudspeaker which comprises a magnetic circuit system and a vibration system. The magnetic circuit system comprises a first magnet, a second magnet and a magnetic conducting assembly; the first magnet and the second magnet are arranged at an interval in a first direction; the second magnet comprises a first side magnet, a middle magnet and a second side magnet which are sequentially arranged at intervals in the second direction; the first direction is perpendicular to the second direction; the magnetic conductive assembly comprises a first magnetic conductive piece and a second magnetic conductive piece; the first magnetic conducting piece is arranged on the first magnet; the vibration system comprises a coil and at least one vibrating diaphragm, and the coil is arranged on the at least one vibrating diaphragm; the coil sleeves a part of the first magnet and is located between the second magnet and a part of the first magnet in the first direction; the first magnetic conductive part and the second magnetic conductive part are arranged on the inner side and the outer side of the coil respectively. According to the invention, the sensitivity of the loudspeaker can be improved.

Description

Technical Field

[0001] The present application relates to the field of acoustic technology, and more particularly, to a loudspeaker. Background Art

[0002] Currently, there are speakers that consist of a diaphragm, a coil, and a magnet. Typically, a magnet is positioned below the voice coil. The coil vibrates under the magnetic field, driving the diaphragm. Many speakers have simple coil and magnet structures, resulting in low overall sensitivity. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a loudspeaker in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present application to solve the technical problem is to construct a loudspeaker, comprising:

[0005] Magnetic circuit system, including:

[0006] a first magnet;

[0007] a second magnet; the first magnet and the second magnet are spaced apart in a first direction; the second magnet includes a first side magnet, a middle magnet, and a second side magnet sequentially spaced apart in the second direction; the first direction and the second direction are perpendicular to each other; and

[0008] A magnetic conductive component comprising a first magnetic conductive member and a second magnetic conductive member; the first magnetic conductive member is disposed on the first magnet; and

[0009] The vibration system includes a coil and at least one diaphragm, wherein the coil is arranged on the at least one diaphragm; the coil is arranged on a portion of the first magnet and is located between the second magnet and a portion of the first magnet in the first direction; the first magnetic conductive member and the second magnetic conductive member are respectively arranged on the inner and outer sides of the coil.

[0010] In some embodiments, the at least one diaphragm includes a first diaphragm and a second diaphragm; the first diaphragm and the second diaphragm are spaced apart in the first direction, and the coil is installed between the first diaphragm and the second diaphragm.

[0011] In some embodiments, the second magnetic conductive member and the first magnetic conductive member are disposed between the first diaphragm and the second diaphragm in the first direction.

[0012] In some embodiments, the second diaphragm is located between the first diaphragm and the second magnet in the first direction, and a portion of the first magnet is disposed inside the coil and the first diaphragm.

[0013] In some embodiments, the first magnetic conductive member and the second magnetic conductive member are disposed at corresponding positions in the first direction.

[0014] In some embodiments, the first magnetic conductive member and the second magnetic conductive member are both plate-shaped and arranged parallel to the diaphragm; the first magnetic conductive member is arranged on a side of the first magnet close to the second magnet; a first clearance hole is formed on the second magnetic conductive member, and the coil is inserted into the first clearance hole.

[0015] In some embodiments, the second magnetic conductive member is spaced apart from the coil, and a sealing member is filled between the second magnetic conductive member and the coil.

[0016] In some embodiments, the first magnet and the middle magnet are arranged corresponding to each other in the second direction; the length of the middle magnet in the second direction is adapted to the distance between two opposite sides of the coil in the second direction.

[0017] In some embodiments, a shell is further included, and the first magnet, the second magnet, the second magnetic conductive member and the at least one diaphragm are all fixed in the shell.

[0018] In some embodiments, a mounting hole is provided on the shell, and one end of the first magnet is limitedly located in the mounting hole.

[0019] The implementation of this application has at least the following beneficial effects:

[0020] By providing a first side magnet, a central magnet, and a second side magnet, the present application can form a first magnetic flux line between the central magnet and the first side magnet and the second side magnet. By providing a first magnet, a magnetic conductive component distributed on both sides of the coil, and allowing the coil to be sleeved on part of the first magnet, a second magnetic flux line can be formed. By superimposing the first and second magnetic flux lines, an enhanced magnetic field can be formed, thereby causing the coil to be subjected to a greater driving force after being energized, thereby improving the overall sensitivity of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 is a structural diagram of a loudspeaker in an embodiment of the present application;

[0023] Figure 2 yes Figure 1 An exploded view of the loudspeaker is shown;

[0024] Figure 3 yes Figure 1 A schematic cross-sectional structure diagram of a loudspeaker is shown;

[0025] Figure 4 yes Figure 1 The cross-sectional structure diagram of the loudspeaker shown at another angle;

[0026] Figure 5 is a schematic cross-sectional structural diagram of a loudspeaker in another embodiment of the present application;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of a loudspeaker in another embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to provide a clearer understanding of the technical features, objectives, and effects of the present application, the specific embodiments of the present application are now described in detail with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings or the orientation or position relationship in which the product of this application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] Figures 1 to 4 The figure shows a loudspeaker 1 in an embodiment of the present application, which may include a housing 30, a magnetic circuit system 10 and a vibration system 20. The magnetic circuit system 10 and the vibration system 20 are both arranged in the housing 30. The magnetic circuit system 10 may include a first magnet 11, a second magnet 12 and a magnetic conductive component 13. The vibration system 20 may include a coil 21 and at least one diaphragm. The coil 21 is arranged on at least one diaphragm. At least two groups of magnetic flux lines are formed between the first magnet 11, the second magnet 12 and the magnetic conductive component 13 to drive the coil 21 with alternating current to move back and forth in the magnetic field. The back and forth movement of the coil 21 can drive the diaphragm to which it is connected to vibrate.

[0034] The second magnet 12 and the first magnet 11 may be spaced apart in the first direction Z. The second magnet 12 may include a first side magnet 121, a middle magnet 122, and a second side magnet 123. The middle magnet 122 is spaced apart between the first side magnet 121 and the second side magnet 123, and the three are spaced apart in sequence along the second direction X.

[0035] The coil 21 is sleeved around a portion of the first magnet 11 and is located between the second magnet 12 and a portion of the first magnet 11 in the first direction Z. The magnetic conductive assembly 13 includes a first magnetic conductive member 131 and a second magnetic conductive member 132. The first magnetic conductive member 131 and the second magnetic conductive member 132 are respectively disposed on the inner and outer sides of the coil 21, and the first magnetic conductive member 131 is disposed on the first magnet 11.

[0036] It should be understood that the first direction Z and the second direction X are perpendicular to each other.

[0037] like Figure 3As shown, the present application provides a first side magnet 121, a central magnet 122, and a second side magnet 123, thereby forming first magnetic flux lines 120 between the central magnet 122, the first side magnet 121, and the second side magnet 123. Because the three magnets are spaced apart along the second direction X and spaced apart from the first magnet 11 along the first direction Z, the coil 21 can be affected by the magnetic flux lines of the first magnetic flux lines 120 distributed radially along the coil 21. When the coil 21 is energized, it can move up and down along the first direction Z under the influence of the magnetic flux lines according to the principle of the left-hand rule F=BIL.

[0038] The present application provides a first magnet 11, a magnetic conductive component 13 distributed on both sides of the inner and outer sides of the coil 21, and allows the coil 21 to be sleeved on a portion of the first magnet 11. Since the first magnetic conductive component 131 is provided on the first magnet 11, a second magnetic flux line 130 can be formed by the first magnet 11 and the magnetic conductive component 13. Since the magnetic conductive component 13 is provided on both sides of the inner and outer sides of the coil 21, the coil 21 can be affected by the magnetic flux lines of the second magnetic flux line 130 distributed radially along the coil 21. When the coil 21 is energized, it can move up and down along the first direction Z under the influence of the magnetic flux lines according to the principle of the left-hand rule F=BIL.

[0039] By superimposing the first magnetic flux lines 120 and the second magnetic flux lines 130 , an enhanced magnetic field can be formed, so that the coil 21 is subjected to a greater driving force after being energized, thereby improving the overall sensitivity of the speaker.

[0040] The first magnet 11, housing 30, and magnetic conductive component 13 can also form a magnetic circuit. This magnetic circuit can utilize the principle of a dynamic coil structure, with the drive coil 21 driving the diaphragm to vibrate along the first direction Z, providing full-frequency sound for the speaker 1. The second magnet 12 and the coil 21 can form a micro-plane drive mode, with the drive coil 21 driving the overall vibration of the diaphragm to provide high frequencies for the speaker 1. In other words, the speaker 1 constructed in this application combines the principles of a dynamic coil structure with those of a micro-plane structure, thereby improving the overall sound quality of the speaker 1.

[0041] like Figure 2 As shown, in this embodiment, the housing 30 , the first magnet 11 , the first side magnet 121 , the second side magnet 123 and the middle magnet 122 are all substantially in the shape of a cube.

[0042] In other optional embodiments, the housing 30, and / or the first magnet 11, and / or the first side magnet 121, and / or the second side magnet 123, and / or the central magnet 122 may also be configured in other shapes such as a cylinder, a polygonal column, or a sphere. The first side magnet 121 and the second side magnet 123 may also be configured in a ring shape or other shape, and be spaced apart around the circumference of the central magnet 122.

[0043] In some embodiments, the housing 30 includes an upper cover 31 and a lower cover 32 , which together define a chamber to accommodate the magnetic circuit system 10 and the vibration system 20 .

[0044] The first magnet 11 and the second magnet 12 can be fixed on the inner wall of the housing 30 by embedding, bonding, etc. Figure 3 and Figure 4 As shown, the first magnet 11 can be disposed on the top wall of the upper cover 31 , and the second magnet 12 can be disposed on the bottom wall of the lower cover 32 .

[0045] In some other optional embodiments, the first magnet 11 can also be arranged on one of the side walls where the upper cover 31 and the lower cover 32 are connected to each other, and the second magnet 12 is arranged on the other side wall where the upper cover 31 and the lower cover 32 are connected to each other, and the first magnet 11 and the second magnet 12 are respectively arranged on two opposite side walls.

[0046] like Figure 2 As shown, in some embodiments, a mounting hole 311 may be formed on the housing 30 , and one end of the first magnet 11 is limitedly located in the mounting hole 311 to achieve positioning of the first magnet 11 on the housing 30 .

[0047] By providing the first mounting hole 311, the first magnet 11 can be positioned on the housing 30, facilitating assembly and positioning during production, improving assembly efficiency, and increasing product yield. This prevents magnetic field deviations caused by installation deviations, thereby preventing any impact on the sensitivity of the speaker 1.

[0048] In some other optional embodiments, the mounting hole 311 may also be configured as a mounting groove. By embedding the first magnet 11 into the mounting groove, a positioning effect may also be achieved.

[0049] In some other optional embodiments, the shell 30 may also be provided with mounting holes or mounting grooves at positions corresponding to the first side magnet 121, the middle magnet 122 and the second side magnet 123 to achieve positioning of the second magnet 12 on the shell 30, further improving assembly efficiency and accuracy.

[0050] In this embodiment, the mounting hole 311 is formed on the upper cover 31 and on the top wall of the upper cover 31 .

[0051] It should be understood that a sealing structure may be provided between the mounting hole 311 and the first magnet 11 to prevent the cavity inside the housing 30 from being connected to the outside at an undesirable position, thereby affecting the output frequency.

[0052] The side surface of the first magnet 11 exposed outside the housing 30 may be flush with the outer side surface of the housing 30 .

[0053] The magnetic poles of the first side magnet 121 and the middle magnet 122 in the first direction Z can be opposite, and the magnetic poles of the first side magnet 121 and the second side magnet 123 in the first direction Z can be the same. This arrangement allows a portion of the first magnetic flux lines 120 formed by the three to extend radially along the coil 21.

[0054] In some embodiments, the first magnet 11 and the middle magnet 122 may be disposed correspondingly in the second direction X. Moreover, the magnetic pole of the first magnet 11 in the first direction Z may be disposed opposite to that of the middle magnet 122 .

[0055] The length of the middle magnet 122 in the second direction X is adapted to the distance between the two corresponding sides of the coil 21 in the second direction X.

[0056] It should be understood that "the length of the middle magnet 122 in the second direction X is adapted to the distance between the two opposite sides of the coil 21 in the second direction X", which can be understood as follows: Figure 5 As shown, the length of the middle magnet 122 in the second direction X is adapted to the inner distance of the two opposite sides of the coil 21 in the second direction X. It can also be understood that, Figure 6 As shown, the length of the middle magnet 122 in the second direction X is adapted to the outer distance of the two opposite sides of the coil 21 in the second direction X. It can also be understood that, Figure 3 As shown, the length of the middle magnet 122 in the second direction X is adapted to the distance between the inner side and the outer side of the coil 21 on both sides opposite to each other in the second direction X.

[0057] This arrangement ensures that the positions of the two gaps between the central magnet 122 and the first side magnet 121 and the second side magnet 123 in the second direction X correspond to the positions of the two opposite sides of the coil 21 in the second direction X. Furthermore, it is possible to ensure that a portion of the first magnetic flux lines 120 formed by the second magnet 12 is distributed radially along the coil 21 to provide driving force to the coil 21.

[0058] In this embodiment, the first magnet 11, the coil 21, the central magnet 122, and the housing 30 are coaxially arranged. The first side magnets 121 and the second side magnets 123 are symmetrically arranged on opposite sides of the central magnet 122. The length of the central magnet 122 in the second direction X is greater than the length of the first magnet 11 in the second direction X, and less than the length of the coil 21 in the second direction X.

[0059] Continue reading Figure 3 In some embodiments, the first magnetic conductive member 131 and the second magnetic conductive member 132 are disposed at corresponding positions in the first direction Z.

[0060] By controlling the positions of the first magnetic conductive member 131 and the second magnetic conductive member 132 in the first direction Z, the second magnetic flux lines 130 formed between the first magnetic conductive member 131 and the second magnetic conductive member 132 can be extended as much as possible along the radial direction of the coil 21. This can maximize the driving force on the coil 21 and improve the sensitivity of the speaker 1.

[0061] like Figures 2 to 4 As shown, in some embodiments, the first magnetic conductive member 131 and the second magnetic conductive member 132 are both plate-shaped and arranged parallel to the diaphragm. This arrangement helps to reduce the space occupied in the housing 30, leaving as much space as possible for the diaphragm so that it can achieve a larger amplitude.

[0062] The first magnetic conductive member 131 is disposed on a side of the first magnet 11 close to the second magnet 12 . A first clearance hole 1321 is formed on the second magnetic conductive member 132 , and the coil 21 is inserted into the first clearance hole 1321 .

[0063] By providing the first clearance hole 1321 on the second magnetic conductive member 132 , the second magnetic conductive member 132 can be provided on the outer periphery of the coil 21 , thereby providing magnetic flux lines uniformly distributed along the radial direction of the coil 21 .

[0064] In some other optional embodiments, the first magnetic conductive member 131 may also be provided in a ring shape or a cylindrical shape, and may be provided inside the coil 21 and sleeved on the first magnet 11 to achieve the above-mentioned effect.

[0065] In some other optional embodiments, the second magnetic conductive member 132 may also be provided in a cylindrical shape, or in a sheet or block shape, and evenly spaced around the outer periphery of the coil 21 .

[0066] like Figure 3 and Figure 4 As shown, in this embodiment, the outer periphery of the second magnetic conductive member 132 is fixed to the housing 30. The inner periphery is spaced apart from the coil 21, with a certain gap between the two.

[0067] In some embodiments, the gap between the second magnetic conductive member 132 and the coil 21 may be filled with a sealant (not shown in the figure) so that the second magnetic conductive member 132 and the coil 21 are connected via the sealant.

[0068] The sealing member can cooperate with the second magnetic conductive member 132 to separate the chambers in the housing 30 and achieve isolation and sealing of the two chambers. That is, in this embodiment, the second magnetic conductive member 132 has both a magnetic conductive function and a cavity partition.

[0069] It should be understood that the seal can be made of low-damping glue or flexible material so as to not affect the back-and-forth movement of the coil 21 while filling the gap.

[0070] The first magnetic conductive member 131 and / or the second magnetic conductive member 132 can be made of magnetic conductive materials such as washers and permanent magnets, which are not specifically limited here.

[0071] In some embodiments, the diaphragm may include a first diaphragm 22 and a second diaphragm 23. The first diaphragm 22 and the second diaphragm 23 are spaced apart in a first direction Z, and the coil 21 is installed between the first diaphragm 22 and the second diaphragm 23. The back-and-forth movement of the coil 21 along the first direction Z can simultaneously drive the first diaphragm 22 and the second diaphragm 23 to vibrate. By providing two diaphragms, the sound pressure of the speaker 1 can be effectively increased.

[0072] Since the second magnetic conductive member 132 and the first magnetic conductive member 131 are arranged on the inner and outer sides of the coil 21 on a plane perpendicular to the first direction Z, and the coil 21 is arranged between the first diaphragm 22 and the second diaphragm 23 in the first direction Z, the first magnetic conductive member 131 and the second magnetic conductive member 132 are arranged between the first diaphragm 22 and the second diaphragm 23 in the first direction Z.

[0073] In this embodiment, the first diaphragm 22 , the first and second magnetic conductive members 131 , 132 , and the second diaphragm 23 are sequentially spaced apart in the first direction Z. The coil 21 is fixed to the first and second diaphragms 22 and 23 at both ends in the first direction Z, respectively.

[0074] like Figure 2 As shown, in some embodiments, the first diaphragm 22 and the second diaphragm 23 may each include a diaphragm 202, an annular gasket 201, and an annular irregular bend 203. The gasket 201 is fixed within the housing 30. The irregular bend 203 is connected to the outer periphery of the diaphragm 202. The gasket 201 is connected to the outer periphery of the irregular bend 203. The coil 21 is fixed to the diaphragm 202.

[0075] The cross-section of the irregular bend 203 can be an arc, concave, or curved, ensuring that the combined area of ​​the irregular bend 203 and the diaphragm 202 is greater than the area defined by the inner contour of the annular gasket 201. This arrangement increases the vibration amplitude of the diaphragm 202. As the coil 21 drives the diaphragm 202 to vibrate, the deformation of the irregular bend 203 provides a greater travel path for the coil 21.

[0076] It should be understood that because the coil 21 is sleeved around a portion of the first magnet 11, a second clearance hole 221 is formed on the first diaphragm 22 or the second diaphragm 23, and a portion of the first magnet 11 is disposed within the second clearance hole 221. In other words, a portion of the first magnet 11 is disposed within the coil 21 and the first diaphragm 22.

[0077] In this embodiment, the second clearance hole 221 is formed on the first diaphragm 22. The second diaphragm 23 is located between the first diaphragm 22 (or the first magnetic conductive member 131 and the second magnetic conductive member 132) and the second magnet 12.

[0078] In some embodiments, a gap may be formed between the first diaphragm 22 and the first magnet 11. The gap may be filled with a sealant, so that the first diaphragm 22 and the second diaphragm 23 may further separate the chamber.

[0079] like Figure 3 and Figure 4 As shown, in this embodiment, the chamber defined by the housing 30 is divided into four chambers in the first direction Z, sequentially by the first diaphragm 22, the coil 21, the magnetic conductive component 13, and the second diaphragm 23. The chamber on the side of the first diaphragm 22 facing away from the magnetic conductive component 13 is defined as a first chamber 33, the chamber between the first diaphragm 22 and the magnetic conductive component 13 is defined as a second chamber 34, the chamber between the magnetic conductive component 13 and the second diaphragm 23 is defined as a third chamber 35, and the chamber on the side of the second diaphragm 23 facing away from the magnetic conductive component 13 is defined as a fourth chamber 36.

[0080] The second magnet 12 is located in the fourth chamber 36 , the first magnet 11 is located in the first chamber 33 and the second chamber 34 , and the coil 21 is located in the second chamber 34 and the third chamber 35 .

[0081] like Figure 4 As shown, in some embodiments, at least one sound outlet hole may be formed on the housing 30 .

[0082] In this embodiment, there are two sound outlet holes, which are defined as a first sound outlet hole 301 and a second sound outlet hole 302 .

[0083] The first sound outlet hole 301 connects the first cavity 33 with the outside, and the second sound outlet hole 302 connects the third cavity 35 with the outside.

[0084] In some embodiments, the first sound outlet 301 and the second sound outlet 302 are both formed on the same side wall of the housing 30. The speaker 1 may further include a cylindrical or horn-shaped sound outlet portion 40, which may be mounted on the outside of the housing 30. The first sound outlet 301 and the second sound outlet 302 are connected to the outside through the sound outlet portion 40.

[0085] In some embodiments, the housing 30 is further provided with an air hole 303 formed on a sidewall thereof, connecting the second chamber 34 to the outside world. This air hole 303 balances the air pressure within the second chamber 34, preventing the first and second diaphragms 22, 23 from vibrating out of sync due to air pressure issues. This air hole 303 also improves low-frequency response and extends the low-frequency range.

[0086] In this embodiment, the first sound outlet 301, the second sound outlet 302, and the air hole 303 are respectively disposed on two opposite side walls of the housing 30. The two opposite side walls are disposed opposite to each other along the third direction Y.

[0087] The third direction Y is perpendicular to the first direction Z and the second direction X respectively.

[0088] In some embodiments, the first magnet 11 , the first side magnet 121 , the middle magnet 122 , the second side magnet 123 , and the coil 21 may be arranged longitudinally along the third direction Y.

[0089] In some other optional embodiments, the first sound outlet 301 and / or the second sound outlet 302 and / or the air hole 303 may also be provided on other side walls of the housing 30. When the number of the diaphragms is one or more, the number of the sound outlets may be adjusted accordingly.

[0090] It should be understood that the first sound outlet 301 and / or the second sound outlet 302 and / or the air hole 303 can be defined by the upper cover 31 and / or the lower cover 32. When one of the sound outlets is defined by both the upper cover 31 and the lower cover 32, it can be that both the upper cover 31 and the lower cover 32 form a groove-like structure, and the two connect to form the hole. Alternatively, one of the upper cover 31 and the lower cover 32 can form a groove-like structure, and the other can close the opening to form the hole, etc. This is not specifically limited here.

[0091] In some embodiments, a plurality of limiting members 37 may be provided in the housing 30 , which may be provided at the connection between the second magnetic conductive member 132 , the first diaphragm 22 , the second diaphragm 23 and the housing 30 to limit their setting positions on the housing 30 .

[0092] The limiting member 37 can be a structure such as an outwardly convex ear block, or a structure such as an inwardly concave groove, etc., which is not specifically limited here.

[0093] It should be understood that the speaker 1 can be applied to various fields such as earphone speakers, mobile phone receivers, mobile phone speakers, laptop speakers, etc., and is not specifically limited here.

[0094] It can be understood that the above technical features can be used in any combination without limitation.

[0095] The above embodiments only express the specific implementation methods of the present application. The descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present application, and several deformations and improvements can be made, which all fall within the scope of protection of the present application. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present application should fall within the scope of coverage of the claims of the present application.

Claims

1. A loudspeaker, characterized in that: include: The magnetic circuit system (10) comprises: a first magnet (11); a second magnet (12); the first magnet (11) and the second magnet (12) are spaced apart in a first direction; the second magnet (12) comprises a first side magnet (121), a middle magnet (122), and a second side magnet (123) that are sequentially spaced apart in the second direction; the first direction and the second direction are perpendicular to each other; and A magnetic conductive component (13); comprising a first magnetic conductive part (131) and a second magnetic conductive part (132); the first magnetic conductive part (131) is arranged on the first magnet (11); and A vibration system (20) comprises a coil (21) and at least one diaphragm, wherein the coil (21) is arranged on the at least one diaphragm; the coil (21) is sleeved on a portion of the first magnet (11) and is located between the second magnet (12) and a portion of the first magnet (11) in the first direction; and the first magnetic conductive member (131) and the second magnetic conductive member (132) are respectively arranged on the inner and outer sides of the coil (21).

2. The loudspeaker according to claim 1, wherein The at least one diaphragm includes a first diaphragm (22) and a second diaphragm (23); the first diaphragm (22) and the second diaphragm (23) are spaced apart in the first direction, and the coil (21) is installed between the first diaphragm (22) and the second diaphragm (23).

3. The loudspeaker according to claim 2, characterized in that The second magnetic conductive part (132) and the first magnetic conductive part (131) are arranged between the first diaphragm (22) and the second diaphragm (23) in the first direction.

4. The loudspeaker according to claim 2, characterized in that The second diaphragm (23) is located between the first diaphragm (22) and the second magnet (12) in the first direction, and a portion of the first magnet (11) is disposed inside the coil (21) and the first diaphragm (22).

5. The loudspeaker according to claim 1, wherein The first magnetic conductive part (131) and the second magnetic conductive part (132) are arranged at corresponding positions in the first direction.

6. The loudspeaker according to claim 1, wherein The first magnetic conductive member (131) and the second magnetic conductive member (132) are both plate-shaped and arranged parallel to the diaphragm; the first magnetic conductive member (131) is arranged on a side of the first magnet (11) close to the second magnet (12); a first clearance hole (1321) is formed on the second magnetic conductive member (132), and the coil (21) is inserted into the first clearance hole (1321).

7. The loudspeaker according to claim 6, characterized in that The second magnetic conductive member (132) and the coil (21) are spaced apart, and a sealing member is filled between the second magnetic conductive member (132) and the coil (21).

8. The loudspeaker according to claim 1, wherein The first magnet (11) and the middle magnet (122) are arranged correspondingly in the second direction; the length of the middle magnet (122) in the second direction is adapted to the distance between two opposite sides of the coil (21) in the second direction.

9. The loudspeaker according to claim 1, wherein It also includes a shell (30), wherein the first magnet (11), the second magnet (12), the second magnetic conductive member (132) and the at least one diaphragm are all fixed in the shell (30).

10. The loudspeaker according to claim 9, characterized in that A mounting hole (311) is provided on the housing (30), and one end of the first magnet (11) is confined within the mounting hole (311).

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