Loudspeaker

Abstract

The embodiment of the utility model discloses a loudspeaker, which is characterized in that a spacing part is arranged between a first magnetic part and a second magnetic part, so that an accommodating cavity for accommodating a moving part is formed. Therefore, on one hand, the first magnetic part and the second magnetic part are directly utilized to form the partial accommodating cavity, so that the space occupied by the loudspeaker can be effectively reduced, the weight of the loudspeaker is reduced, and the loudspeaker is simpler and more convenient to install. And on the other hand, the size of the magnetic assembly is increased, and the magnetic field intensity of the magnetic assembly is further improved, so that the first voice coil can reduce the distortion of the loudspeaker and improve the response speed under the action of Ampere force. And on the other hand, the magnetic field generated by the magnetic assembly exposed outside the loudspeaker 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] The utility model relates to the field of electroacoustic conversion, especially a loudspeaker. BACKGROUND

[0002] The vibration system and the magnetic circuit system of the traditional loudspeaker are respectively on the upper and lower sides, thereby reserving more space for the movement of the voice coil, which makes the loudspeaker occupy too large a volume. In addition, the magnetic circuit system is in the interior of the loudspeaker, which is not conducive to the spatial arrangement of the loudspeaker and other components. How to reduce the space occupation and optimize the spatial arrangement of the loudspeaker becomes a problem to be solved. SUMMARY

[0003] Therefore, the utility model embodiment provides a loudspeaker, which separates the first magnetic part and the second magnetic part by the spacing part, so that a first magnetic gap can be formed between the first magnetic part and the second magnetic part. At the same time, the movement of the moving part in the accommodation cavity can also be provided with a moving space.

[0004] The loudspeaker of the utility model embodiment comprises:

[0005] a spacing part;

[0006] a magnetic assembly comprising a first magnetic part and a second magnetic part, the spacing part being arranged between the first magnetic part and the second magnetic part, the spacing part and the first magnetic part and the second magnetic part forming an accommodation cavity therebetween, and the opposite sides of the first magnetic part and the second magnetic part forming a first magnetic gap; and

[0007] a moving part comprising a first diaphragm and a first voice coil arranged on the first diaphragm, the first voice coil and at least part of the first diaphragm being located in the accommodation cavity, and at least part of the first voice coil being located in the first magnetic gap.

[0008] Further, the spacing part is annular, the edge of the first diaphragm is fixedly connected with the spacing part, and the two sides of the spacing part are fixedly connected with the first magnetic part and the second magnetic part respectively.

[0009] Further, the spacing part comprises a first ring body and a second ring body, the edge of the first diaphragm is clamped between the first ring body and the second ring body, the first magnetic part is fixedly connected with the first ring body, and the second magnetic part is fixedly connected with the second ring body.

[0010] Further, the first magnetic part and the second magnetic part each comprise a magnetic ring group, a plurality of magnetic rings of each magnetic ring group are arranged in a nested manner, the magnetic rings are provided with air holes, and the accommodation cavity is in communication with the outside of the loudspeaker through the air holes;

[0011] The interval part is connected with the magnetic ring on the outer side of the magnetic ring group.

[0012] Further, the moving part further comprises:

[0013] A second diaphragm;

[0014] A second voice coil fixedly connected with the second diaphragm and arranged on the side of the magnetic assembly away from the accommodating cavity, and at least part of the second voice coil is located in the magnetic field of the magnetic assembly.

[0015] Further, the magnetic assembly further comprises:

[0016] A magnetic conductive washer attracted to the first magnetic part, the second diaphragm is fixedly connected to the side of the magnetic conductive washer away from the first magnetic part, 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 in the inner side of the magnetic conductive washer.

[0017] Further, the first magnetic part comprises a first magnetic ring, and the magnetic conductive washer is attracted to the first magnetic ring;

[0018] The magnetic assembly further comprises a center magnetic conductive member, the center magnetic conductive member comprises an inner plate and a column, the inner plate is located in the accommodating cavity and is attracted to the first magnetic ring, the column is extended from the center of the first magnetic ring, and part of the column and the opposite side of the magnetic conductive washer form a second magnetic gap, and at least part of the second voice coil is located in the second magnetic gap.

[0019] Further, the first magnetic part comprises a first magnetic ring, and the magnetic conductive washer is attracted to the first magnetic ring;

[0020] At least part of the second voice coil is spaced apart from and opposite to the first magnetic ring.

[0021] Further, the first magnetic part further comprises a center magnet, the center magnet is located in the center of the first magnetic ring and is attracted to the first magnetic ring;

[0022] The second voice coil is opposite to the center magnet and the first magnetic ring at the same time.

[0023] Further, the loudspeaker further comprises a connecting part, the connecting part is arranged on the first magnetic part and / or the interval part, the connecting part has an electric path, one end of the electric path is located on the outer side of the accommodating cavity, and the other end is electrically connected with the first voice coil.

[0024] The loudspeaker in the embodiment has the interval part arranged between the first magnetic part and the second magnetic part, thereby forming the accommodating cavity for accommodating the moving part. In this way, on the one hand, the first magnetic part and the second magnetic part are directly used to form part of the accommodating cavity, so that the loudspeaker can effectively reduce the space occupation and the weight, and the installation of the loudspeaker is more convenient. On the other hand, the volume of the magnetic assembly is increased, and the magnetic field strength of the magnetic assembly is improved, so that the first voice coil can reduce the distortion of the loudspeaker and improve the response speed under the action of the ampere force. In addition, the magnetic field generated by the magnetic assembly exposed outside the loudspeaker can be shared by the electronic elements around the loudspeaker, so that the integration degree of the loudspeaker and the surrounding electronic elements is higher, and the product cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a structural schematic view of one side of a loudspeaker provided by the first embodiment of the present application;

[0027] Figure 2 is a structural schematic view of the other side of the loudspeaker provided by the first embodiment of the present application;

[0028] Figure 3 is an exploded schematic view of the loudspeaker provided by the first embodiment of the present application;

[0029] Figure 4 is a cross-sectional schematic view of the loudspeaker provided by the first embodiment of the present application;

[0030] Figure 5 is a structural schematic view of the magnetic assembly provided by the first embodiment of the present application;

[0031] Figure 6 is an exploded schematic view of the first magnetic part, the second diaphragm and the second voice coil provided by the second embodiment of the present application;

[0032] Figure 7 is a partial cross-sectional schematic view of the loudspeaker provided by the second embodiment of the present application;

[0033] Figure 8 is an exploded schematic view of the first magnetic part, the second diaphragm and the second voice coil provided by the third embodiment of the present application;

[0034] Figure 9 is a partial cross-sectional schematic view provided by the third embodiment of the present application;

[0035] Figure 10is a structural schematic view of the connecting part provided by the fourth embodiment of the utility model;

[0036] Figure 11 is an explosion schematic view of the connecting part provided by the fourth embodiment of the utility model;

[0037] Figure 12 is an explosion schematic view of the connecting part and the first ring body provided by the fourth embodiment of the utility model;

[0038] Figure 13 is an explosion schematic view of the loudspeaker provided by the fifth embodiment of the utility model.

[0039] Mark explanation:

[0040] 1-magnetic assembly;

[0041] 11-first magnetic part; 111-first magnetic ring; 112-second magnetic ring; 113-third magnetic ring; 12-second magnetic part; 13-magnetic conductive washer; 14-center magnetic conductive piece; 141-inner plate; 142-cylinder; 143-groove; 15-center magnet;

[0042] 2-movement part;

[0043] 21-first diaphragm; 211-diaphragm; 212-conductive pattern; 213-extension area; 22-first voice coil; 23-second diaphragm; 24-second voice coil; 25-dome;

[0044] 311-connection surface; 312-avoidance slot; 33-receiving cavity; 36-ear; 37-air hole;

[0045] 41-first magnetic gap; 42-second magnetic gap;

[0046] 5-connecting part;

[0047] 51-electric path; 52-first connection end; 53-second connection end;

[0048] 6-interval part;

[0049] 61-first ring body; 62-second ring body; 63-separation ring; 64-flange. Specific implementation

[0050] The utility model is described based on the following embodiments, but the utility model is not limited to these embodiments only.In the following detailed description of the utility model, some specific details are described in detail.The utility model can also be fully understood without these details for those skilled in the art.In order to avoid confusion of the essence of the utility model, well-known methods, processes, flows, elements and circuits are not described in detail.

[0051] Furthermore, those skilled in the art will appreciate that the figures provided herein are for explanatory purposes as the drawings are not necessarily drawn to scale.

[0052] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an overly literal sense unless expressly so defined herein.

[0053] In the description of the present application, it is to be understood that the terms "first", "second", and the like, are used to describe various components but do not imply or otherwise suggest relative importance of the specific components. In addition, in the description of the present application, the meaning of "a plurality of" is two or more unless otherwise specified or limited.

[0054] Unless specifically stated otherwise, and as can be apparent from the disclosure, the use herein of "mounting", "coupled", "connection", "fixed", and the like, are used in their broadest, generic sense and can be either direct or indirect. As used herein, these terms are intended to encompass both a direct connection between two elements and an indirect connection between two elements through one or more intermediate elements. As used herein, these terms are also intended to encompass a connection between two or more elements that is variable, movable, or otherwise changeable (e.g., a releasable connection). Unless specifically stated otherwise, the terms "connected", "attached", and the like, are used in their broadest, generic sense and do not require any direct or fixed connection between two elements. As used herein, the term "connected" can mean either a direct connection between two elements or an indirect connection through one or more intermediate elements. As used herein, the term "attached" can mean either a direct connection between two elements or an indirect connection through one or more intermediate elements.

[0055] For ease of description, spatially relative terms such as "inner", "outer", "beneath", "below", "lower", "above", "upper", and the like, can be used herein for describing the relationship between one element or feature to another element or feature as illustrated in the drawings. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the drawings. For example, if a device is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation that is above as well as below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", and the like, as can be used herein do not imply a relative importance, unless specifically stated otherwise.

[0056] Figure 1 and Figure 2 is a structural schematic diagram of a loudspeaker provided by the first embodiment. Figure 3 is an exploded schematic diagram of the loudspeaker provided by the first embodiment.

[0057] In some embodiments, as Figures 1-3As shown, the loudspeaker in the embodiment includes a magnetic assembly 1, a moving part 2 and a spacing part 6. The magnetic assembly 1 includes a first magnetic part 11 and a second magnetic part 12 oppositely and spacedly arranged. Meanwhile, the spacing part 6 is fixedly connected with the first magnetic part 11 and the second magnetic part 12 respectively on two sides. The side of the first magnetic part 11 and the second magnetic part 12 close to each other forms a first magnetic gap 41, and the spacing part 6 and the first magnetic part 11 and the second magnetic part 12 form a receiving cavity 33.

[0058] Specifically, the first magnetic part 11 and the second magnetic part 12 each have a first side and a second side. The first side is formed on the side of the first magnetic part 11 and the second magnetic part 12 close to each other. The second side is formed on the side of the first magnetic part 11 and the second magnetic part 12 away from each other. The first magnetic gap 41 is formed between the two first sides. The area between the two first sides and the side wall of the spacing part 6 facing the first magnetic gap 41 forms the receiving cavity 33.

[0059] Preferably, the first side and the second side are parallel to each other and are both planes. The two first sides are arranged parallel to each other, so that the areas of the first magnetic gap 41 are consistent in the height direction, improving the stability of the moving part 2 in vibration.

[0060] Figure 4 is a cross-sectional view of the loudspeaker provided by the first embodiment. Figure 5 is a structural schematic view of the magnetic assembly 1 provided by the first embodiment.

[0061] Further referring to Figures 4-5 As shown, the moving part 2 includes 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 are located in the receiving cavity 33, and at least part 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 the action of the Ampere force in the first magnetic gap 41, and reciprocally moves between the first magnetic part 11 and the second magnetic part 12, thereby driving the first diaphragm 21 to vibrate.

[0062] In summary, in the loudspeaker of the embodiment, the spacing part 6 is arranged between the first magnetic part 11 and the second magnetic part 12, thereby forming the accommodating cavity 33 for accommodating the moving part 2. In this way, on the one hand, the first magnetic part 11 and the second magnetic part 12 are directly used to form part of the accommodating cavity 33, which can effectively reduce the space occupied by the loudspeaker, reduce the weight of the loudspeaker, and make the installation of the loudspeaker more convenient. On the other hand, the volume of the magnetic assembly 1 is increased, thereby improving the magnetic field strength of the magnetic assembly 1, so that the first voice coil 22 can reduce the distortion of the loudspeaker under the action of the ampere force and improve the response speed. On the other hand, the magnetic field generated by the magnetic assembly 1 exposed outside the loudspeaker can facilitate the sharing of the magnetic assembly 1 by electronic components around the loudspeaker, thereby making the integration of the loudspeaker and the surrounding electronic components higher and further reducing the product cost.

[0063] Specifically, as shown in Figure 3 , the first voice coil 22 is a planar voice coil. The first voice coil 22 can be a double-sided etched coil. For example, a coil is formed on a flexible copper-clad plate through an etching process, and the formed flexible copper-clad plate is attached to the first diaphragm 21 by using glue. Or the first voice coil 22 is directly formed on the first diaphragm 21 by chemical etching or the like.

[0064] In some embodiments, as shown in Figures 1-4 , the spacing part 6 is annular, the edge of the first diaphragm 21 is fixedly connected with the spacing part 6, and the two sides of the spacing part 6 are fixedly connected with the first magnetic part 11 and the second magnetic part 12, respectively.

[0065] In the embodiment, the first diaphragm 21 and the spacing part 6 can be fixedly connected together first, and then the first magnetic part 11 and the second magnetic part 12 are respectively covered on the two sides of the spacing part 6 and are fixed by using glue. In this way, the assembly process of the loudspeaker is simplified.

[0066] In some embodiments, as shown in Figures 3-4 , the spacing part 6 includes a first ring body 61 and a second ring body 62 arranged in a stack, and the edge of the first diaphragm 21 is clamped between the first ring body 61 and the second ring body 62. The first magnetic part 11 is fixedly connected with the first ring body 61, and the second magnetic part 12 is fixedly connected with the second ring body 62.

[0067] Specifically, the first ring body 61 and the second ring body 62 are arranged in mirror symmetry. The first ring body 61 can be fixedly connected with the first magnetic part 11 first, and the second ring body 62 is fixedly connected with the second magnetic part 12. Then, the first ring body 61 and the second ring body 62 are bonded to the two sides of the edge of the first diaphragm 21 by using glue.

[0068] Optionally, as shown in Figure 4As shown, the first ring body 61 and the second ring body 62 each include a spacer ring 63 and a flange 64. One side of the spacer ring 63 is in abutment with the first diaphragm 21, and the other side is used to be in abutment with the first magnetic part 11 or the second magnetic part 12. The flange 64 is connected to the side of the spacer ring 63 away from the first diaphragm 21, and the flange 64 is folded towards the center of the spacing part 6. The flange 64 is used to be in abutment with the first magnetic part 11 or the second magnetic part 12, thereby increasing the contact area of the spacing part 6 with the magnetic assembly 1, and when connected by glue, the connection strength of the two can be improved.

[0069] In some embodiments, as shown in Figures 3-4 As shown, the first magnetic part 11 and the second magnetic part 12 each include a magnetic ring group, and the plurality of magnetic rings of each magnetic ring group are nested. The magnetic ring is provided with an air hole 37, and the cavity 33 communicates with the outside of the speaker through the air hole 37. The spacing part 6 is connected with the magnetic ring outside the magnetic ring group.

[0070] Specifically, the magnetic ring group includes a first magnetic ring 111, a second magnetic ring 112, and a third magnetic ring 113, and the third magnetic ring 113 is provided with a plurality of air holes 37 arranged uniformly. Thus, a large enough flow section is provided for the sound waves generated by the moving part 2.

[0071] Figure 6 is an exploded schematic view of the first magnetic part 11 and the second diaphragm 23 and the second voice coil 24 provided by the second embodiment. Figure 7 is a partial cross-sectional view of the speaker provided by the second embodiment. Figure 8 is an exploded schematic view of the first magnetic part 11 and the second diaphragm 23 and the second voice coil 24 provided by the third embodiment. Figure 9 is a partial cross-sectional view provided by the third embodiment.

[0072] In some embodiments, as shown in Figures 6-9 As shown, the moving part 2 further includes a second diaphragm 23 and a second voice coil 24. The second voice coil 24 is fixedly connected with the second diaphragm 23 and is arranged on the side of the first magnetic part 11 away from the cavity 33, and at least part of the second voice coil 24 is located in the magnetic field of the first magnetic part 11.

[0073] Specifically, the first diaphragm 21, the first voice coil 22, and the magnetic assembly 1 in the embodiment form a low-frequency generating unit, and 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 sound generating unit. Thus, the low-frequency generating unit and the high-frequency sound generating unit can provide sound waves of different frequency domains for the speaker, thereby improving the loudness of the speaker. The speaker in the embodiment can be applied to earphones.

[0074] 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.

[0075] In some implementations, such as Figures 6-9 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.

[0076] 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.

[0077] In some implementations, such as Figures 6-7 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.

[0078] In some implementations, such as Figures 6-7 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.

[0079] 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.

[0080] In some implementations, such as Figures 8-9As shown, the first magnetic part 11 comprises a first magnetic ring 111, and the magnetic conductive washer 13 is attracted to the first magnetic ring 111. The magnetic assembly 1 further comprises a central magnetic conductive member 14. The central magnetic conductive member 14 comprises an inner plate 141 and a column 142. The inner plate 141 is located on the side of the first magnetic ring 111 close to the accommodating 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 part of the column 142 is opposite to the magnetic conductive washer 13 to form a second magnetic gap 42, and at least part of the second voice coil 24 is located in the second magnetic gap 42.

[0081] Specifically, the magnetic conductive washer 13 and the central magnetic conductive member 14 can be made of silicon steel, ferrite, iron boron or the like. After the magnetic conductive washer 13 and the central magnetic conductive member 14 are attracted to the first magnetic part 11, part of the magnetic force of the magnetic assembly 1 can act on the second voice coil 24 through the second magnetic gap 42. Thus, the ampere force received by the second voice coil 24 is optimized.

[0082] Alternatively, 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, and the end of the column 142 is opposite to part of the magnetic conductive washer 13. The column 142 has a groove 143, and the inner side of the groove 143 and the outer side of the column 142 are both cylindrical surfaces, thereby further optimizing the conduction of the magnetic field on the central magnetic conductive member 14.

[0083] Preferably, the inner side of the magnetic conductive washer 13 and the inner side of the first magnetic ring 111 are both cylindrical surfaces, and they overlap in the axial direction. The second voice coil 24 is configured as a cylindrical voice coil. In this way, the first magnetic ring 111 can avoid the second voice coil 24, and the magnetic field in the second magnetic gap 42 is more uniform.

[0084] Figure 10 FIG. 5 is a structural schematic diagram of the connecting part 5 provided by the fourth embodiment. Figure 11 FIG. 6 is an exploded schematic diagram of the connecting part 5 provided by the fourth embodiment. Figure 12 FIG. 7 is an exploded schematic diagram of the connecting part 5 and the first ring body 61 provided by the fourth embodiment. Figure 13 FIG. 8 is an exploded schematic diagram of the loudspeaker provided by the fifth embodiment.

[0085] In some embodiments, as shown in FIG. 1, Figures 10-13 The loudspeaker further comprises a connecting part 5. The connecting part 5 is arranged on the first magnetic part 11 and / or the spacing part 6. The connecting part 5 has two electrical paths 51, one end of each electrical path 51 is located on the outside of the accommodating cavity 33, 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. In this way, the connection mode of the loudspeaker is simplified.

[0086] In some embodiments, as shown in FIG. 1, Figure 3and Figure 13 As shown in FIG. 1, the first diaphragm 21 includes a diaphragm 211 and two conductive patterns 212 formed on the diaphragm 211, which are respectively arranged corresponding to the two electrical paths 51. One end of each conductive pattern 212 is connected with the first voice coil 22, and the other end is connected with the end of the corresponding electrical path 51.

[0087] Specifically, the conductive pattern 212 can be a nano silver wire coating arranged 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 respectively electrically connected with the ends of the two nano silver wire coatings. The two conductive patterns 212 are extended by the first voice coil 22 to the edge position of the first diaphragm 21, so as to be connected with the connecting part 5.

[0088] In some embodiments, as shown in FIG. 1, the first ring body 61 has a connecting surface 311, and the first ring body 61 is connected with the edge of the first diaphragm 21 through the connecting surface 311. The connecting surface 311 is provided with a avoiding groove 312. The connecting part 5 is a flexible printed circuit (Flexible Printed Circuit, FPC), which includes a first connecting end 52 and a second connecting end 53. The two ends of each electrical path 51 are respectively arranged on the first connecting end 52 and the second connecting end 53. The first connecting end 52 is arranged on the outer surface of the first magnetic part 11, and the second connecting end 53 extends into the avoiding groove 312 along the outer surface of the first ring body 61 and the first magnetic part 11, and the ends of the two electrical paths 51 respectively abut against the two conductive patterns 212. In this embodiment, the flexibility of the flexible printed circuit is utilized, so that the flexible printed circuit can be attached on the magnetic assembly 1 and the spacing part 6, thereby reducing the volume occupied by the loudspeaker. Figure 12 Specifically, the first connecting end 52 is arranged at the edge position of the second side surface of the first magnetic part 11. The second connecting end 53 extends from the side surface of the first ring body 61 into the avoiding 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 diaphragm 21 on the side of the first connecting end 52. The second contact is exposed on the second connecting end 53 and faces the first diaphragm 21. When the first ring body 61 and the second ring body 62 are clamped at the edge position of the first diaphragm 21, the second contact can just abut against the end of the conductive pattern 212. The other end of the conductive pattern 212 extends to the center of the first diaphragm 21 and is connected with the first voice coil 22. Thus, the electrical connection between the connecting part 5 and the first voice coil 22 is realized.

[0089] In some embodiments, as shown in FIG. 1, the first ring body 61 has a connecting surface 311, and the first ring body 61 is connected with the edge of the first diaphragm 21 through the connecting surface 311. The connecting surface 311 is provided with a avoiding groove 312. The connecting part 5 is a flexible printed circuit (Flexible Printed Circuit, FPC), which includes a first connecting end 52 and a second connecting end 53. The two ends of each electrical path 51 are respectively arranged on the first connecting end 52 and the second connecting end 53. The first connecting end 52 is arranged on the outer surface of the first magnetic part 11, and the second connecting end 53 extends into the avoiding groove 312 along the outer surface of the first ring body 61 and the first magnetic part 11, and the ends of the two electrical paths 51 respectively abut against the two conductive patterns 212. In this embodiment, the flexibility of the flexible printed circuit is utilized, so that the flexible printed circuit can be attached on the magnetic assembly 1 and the spacing part 6, thereby reducing the volume occupied by the loudspeaker.

[0090] Figure 13 ​As shown, the spacer 6 further comprises a lug 36 protruding from the outer surface of the second ring 62. The diaphragm 211 comprises an extension 213 arranged at the edge of the diaphragm 211 and extending to the lug 36, and the two conductive patterns 212 extend to the extension 213. The connection 5 is a rigid circuit board, i.e. a PCB board. The two board surfaces of the rigid circuit board face away from each other and form the first connection end 52 and the second connection end 53, respectively, and the two ends of each electrical path 51 are arranged at the first connection end 52 and the second connection end 53, respectively. The rigid circuit board is arranged at the extension 213, and the two electrical paths 51 are arranged at the end of the first connection end 52 and abut the two conductive patterns 212, respectively.

[0091] Specifically, the lug 36 horizontally extends to the side of the second ring 62. The lug 36 is used to support the rigid circuit board and the extension 213. When the rigid circuit board is mounted on the extension 213, the orientation of the first contact can be exactly consistent with the orientation of the second side of the first magnetic part 11.

[0092] Further, the spacer 6 is made of a non-magnetic material. The non-magnetic material can be metal such as aluminum or copper, or non-metal such as plastic or rubber. In this way, the spacer 6 can avoid affecting the magnetic force of the magnetic assembly 1.

[0093] In some embodiments, as shown, Figure 5 The magnetic assembly 1 is configured to be mirror-symmetric with the polarity of the first magnetic part 11 and 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 is towards the first magnetic ring 111, and the north pole N is towards the third magnetic ring 113. The polarity of the first magnetic ring 111 is opposite to that of the third magnetic ring 113.

[0094] Further, as shown, Figure 8 The central magnet 15 is in a cylindrical structure, and the north pole N of the central magnet 15 is towards the accommodating cavity 33, and the south pole S is away from the accommodating cavity 33.

[0095] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously modified and changed. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A loudspeaker, characterized by The loudspeaker comprises: a spacer (6); a magnetic assembly (1) comprising a first magnetic part (11) and a second magnetic part (12), the spacer (6) being arranged between the first magnetic part (11) and the second magnetic part (12), a receiving cavity (33) being formed between the spacer (6) and the first magnetic part (11) and the second magnetic part (12), and opposite sides of the first magnetic part (11) and the second magnetic part (12) forming a first magnetic gap (41); and 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 receiving cavity (33), and 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 spacer (6) is annular, the edge of the first diaphragm (21) is fixedly connected with the spacer (6), and two sides of the spacer (6) are fixedly connected with the first magnetic part (11) and the second magnetic part (12) respectively.

3. The loudspeaker of claim 2, wherein, The spacer (6) comprises a first ring body (61) and a second ring body (62), the edge of the first diaphragm (21) is clamped between the first ring body (61) and the second ring body (62), the first magnetic part (11) is fixedly connected with the first ring body (61), and the second magnetic part (12) is fixedly connected with the second ring body (62).

4. The loudspeaker of claim 2, wherein, The first magnetic part (11) and the second magnetic part (12) each comprise a magnetic ring group, a plurality of magnetic rings of each magnetic ring group are arranged in a nested manner, the magnetic rings are provided with air holes (37), and the receiving cavity (33) communicates with the outside of the loudspeaker through the air holes (37); The spacer (6) is connected with the magnetic rings outside the magnetic ring group.

5. The loudspeaker of any one of claims 1-4, 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 a side of the magnetic assembly (1) away from the receiving cavity (33), and at least part of the second voice coil (24) is located in a magnetic field of the magnetic assembly (1).

6. The loudspeaker of claim 5, wherein, The magnetic assembly (1) further comprises: a magnetically conductive gasket (13) attracted to the first magnetic part (11), the second diaphragm (23) being fixedly connected to a side of the magnetically conductive gasket (13) away from the first magnetic part (11), the second voice coil (24) being fixedly connected to a 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 gasket (13).

7. The loudspeaker of claim 6, wherein, The first magnetic part (11) comprises a first magnetic ring (111), and the magnetically conductive gasket (13) is attracted to the first magnetic ring (111). The magnetic assembly (1) further comprises a center magnetic conducting piece (14), the center magnetic conducting piece (14) comprises an inner plate (141) and a column (142), the inner plate (141) is located in the accommodating cavity (33) and is attracted to the first magnetic ring (111), the column (142) is extended from the center of the first magnetic ring (111), and part of the column (142) and the opposite side of the magnetic conducting gasket (13) form a second magnetic gap (42), and at least part of the second voice coil (24) is located in the second magnetic gap (42).

8. The loudspeaker of claim 6, wherein, The first magnetic part (11) comprises a first magnetic ring (111), and the magnetic conducting gasket (13) is attracted to the first magnetic ring (111). At least part of the second voice coil (24) is spaced apart from and opposite to the first magnetic ring (111).

9. The loudspeaker of claim 8, wherein, The first magnetic part (11) further comprises a center magnet (15), and the center magnet (15) is located in the center of the first magnetic ring (111) and is attracted to the first magnetic ring (111). The second voice coil (24) is opposite to the center magnet (15) and the first magnetic ring (111) at the same time.

10. The loudspeaker of any one of claims 1-4, wherein, The loudspeaker further comprises a connecting part (5), the connecting part (5) is arranged on the first magnetic part (11) and / or the spacing part (6), the connecting part (5) has an electric passage (51), one end of the electric passage (51) is located outside the accommodating cavity (33), and the other end is electrically connected with the first voice coil (22).

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