Loudspeaker and electronic equipment

Abstract

The utility model relates to a loudspeaker and electronic equipment, the loudspeaker comprises a loudspeaker support assembly, a first groove and an accommodating space are sequentially arranged along a first extension direction of the loudspeaker, one side wall of the accommodating space is provided with an opening, and the accommodating space is communicated with the first groove through the opening; the vibrating diaphragm assembly is arranged in the first groove; the voice coil assembly is suspended in the accommodating space, and one end of the voice coil assembly extends to the first groove through the opening and is connected with the vibrating diaphragm assembly; the first magnetic part and the second magnetic part are respectively arranged on two sides of the voice coil assembly along the thickness direction of the voice coil assembly and are connected with the corresponding inner wall of the accommodating space; wherein the first magnetic piece and the second magnetic piece have the same or opposite polarity; and the magnetic fluid is used for filling the accommodating space so as to cover the voice coil assembly. The voice coil assembly and the vibrating diaphragm assembly are arranged in parallel, the vibration of the voice coil assembly and the vibration of the vibrating diaphragm assembly are converted in different directions, thickness superposition and displacement allowance reservation are reduced, and the thickness of the loudspeaker is further reduced.

Description

Technical Field

[0001] The present application relates to the field of audio technology, and in particular to a speaker and an electronic device. Background Art

[0002] Conventional electric speakers form a magnetic circuit through permanent magnets (magnetic steel) and magnetic materials (magnetic bowls / sheets). The supporting system (supports, folding rings) suspends the wound coil (voice coil) in the magnetic circuit. When the alternating current modulated by the audio signal is passed through the coil, the coil is acted upon by the Lorentz force, driving the diaphragm to vibrate and push the air to make sound.

[0003] In the related art, the loudspeaker is in the shape of a cylinder, and the voice coil and the diaphragm are arranged in sequence along the thickness direction. When the vibrations are in the same direction, there is a thickness superposition, and in order to ensure a certain sound pressure level output sensitivity and rated power, a certain displacement margin needs to be reserved in the vibration direction, which is not conducive to realizing a thin design of the loudspeaker and cannot meet the space utilization requirements of electronic equipment. Utility Model Content

[0004] The present application provides a speaker and an electronic device, which can achieve a thin design and help rationalize the spatial layout of the electronic device.

[0005] In a first aspect, the present application provides a speaker, comprising: a speaker bracket assembly, wherein a first groove and a accommodating space are sequentially arranged along a first extension direction of the speaker, a side wall of the accommodating space is provided with an opening, and the accommodating space is connected to the first groove through the opening; a diaphragm assembly, arranged in the first groove; a voice coil assembly, suspended in the accommodating space, one end of the voice coil assembly extends to the first groove through the opening, and is connected to the diaphragm assembly; a first magnetic member and a second magnetic member, which are arranged on both sides of the voice coil assembly along its thickness direction and are connected to the corresponding inner wall of the accommodating space; wherein the polarities of the first magnetic member and the second magnetic member are the same or opposite; and a magnetic fluid, filling the accommodating space to cover the voice coil assembly.

[0006] In one possible implementation, the first magnetic member includes at least one first magnetic steel body, the first magnetic steel body has a first magnetic pole and a second magnetic pole along the first extension direction, and the polarities of the first magnetic pole and the second magnetic pole are opposite; the second magnetic member includes at least one second magnetic steel body, the second magnetic steel body has a third magnetic pole and a fourth magnetic pole along the first extension direction, the polarity of the third magnetic pole is opposite to that of the first magnetic pole, and the polarity of the fourth magnetic pole is opposite to that of the second magnetic pole.

[0007] In a possible implementation, when there are multiple first magnetic steel bodies, two adjacent first magnetic steel bodies have the same polarity; when there are multiple second magnetic steel bodies, two adjacent second magnetic steel bodies have the same polarity.

[0008] In a possible implementation, the accommodating space has two inner walls arranged opposite to each other, each of the inner walls is provided with at least one second groove, and the first magnetic steel body and the second magnetic steel body are respectively embedded in one of the second grooves;

[0009] Wherein, the outer side wall of the second groove is provided with a plurality of first reinforcing ribs.

[0010] In a possible implementation, the voice coil assembly includes a plate body, a first voice coil and a second voice coil, wherein the first voice coil and the second voice coil are arranged on both sides of the plate body along a thickness direction thereof and attached to the plate body.

[0011] In a possible implementation, the diaphragm assembly includes a diaphragm body and an elastic support body, and the diaphragm body is disposed in the first groove through the elastic support body; wherein the diaphragm body is connected to the voice coil assembly.

[0012] In a possible implementation, the elastic support body is provided with an arched surface, and a partial structure of the diaphragm body is attached to the arched surface.

[0013] In a possible implementation, the speaker bracket assembly includes a first bracket and a second bracket, wherein the second bracket is disposed on a side of the first bracket and connected thereto; wherein the first groove is disposed on the first bracket, and the accommodating space is disposed on the second bracket;

[0014] Wherein, a plurality of second reinforcing ribs are arranged in the first groove.

[0015] In a possible implementation, the second bracket includes a first body and a second body, and the first body and / or the second body are provided with a receiving groove; when the first body and the second body are buckled together, the receiving groove is configured as the receiving space; and the opening is provided on the first body and / or the second body.

[0016] In a second aspect, the present application provides an electronic device, comprising the speaker as described in the first aspect.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] In the loudspeaker and electronic device provided in the embodiments of the present application, the voice coil assembly and the diaphragm assembly in the loudspeaker are arranged in parallel, and the vibration of the voice coil assembly and the vibration of the diaphragm assembly are converted in non-codirectional directions, which reduces the thickness superposition and the displacement margin reservation, and further reduces the thickness of the loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A schematic diagram of the structure of a speaker provided in an embodiment of the present application;

[0023] Figure 2 An exploded schematic diagram of a speaker provided in an embodiment of the present application;

[0024] Figure 3 A schematic cross-sectional view of a loudspeaker provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a first magnetic member and a second magnetic member provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the speaker pronunciation principle provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a magnetic circuit provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of a voice coil assembly provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of a voice coil assembly provided in an embodiment of the present application;

[0030] Fig. 9 A schematic diagram of a voice coil assembly provided in an embodiment of the present application;

[0031] Fig.10 A schematic diagram of a voice coil assembly provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. speaker bracket assembly; 11. first bracket; 111. first groove; 112. second reinforcing rib; 1221. accommodating space; 1222. opening; 1223. second groove; 1224. first reinforcing rib; 12. second bracket; 121. first body; 122. second body;

[0034] 2. Diaphragm assembly; 21. Diaphragm body; 211. First part; 212. Middle part; 213. Second part; 22. Elastic support body; 221. Arched surface;

[0035] 3. Voice coil assembly; 31. Plate body; 32. First voice coil; 33. Second voice coil;

[0036] 4. first magnetic member; 41. first magnetic steel body; 41A. first magnetic steel body; 41B. first magnetic steel body; 41C. first magnetic steel body;

[0037] 5. Second magnetic member; 51. Second magnetic steel body; 51A. Second magnetic steel body; 51B. Second magnetic steel body; 51C. Second magnetic steel body;

[0038] 6. Magnetic fluid. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0041] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0042] In the related art, the voice coil in the speaker adopts a cylindrical or racetrack winding method, and the voice coil needs to have a certain thickness to ensure that there is a relatively long length of the conducting wire in the magnetic gap to provide sufficient driving force. For example, the voice coil of a 10mm thick electric speaker needs to have a winding width of about 2~3mm, which further affects the thin design of the speaker.

[0043] In order to solve the technical problems in the related art that there is an overlap in thickness between the voice coil and the diaphragm, and a displacement margin needs to be reserved in the vibration direction, and the voice coil needs to be rolled up, which takes up space and is not conducive to achieving a thin design of the speaker, the present application provides a speaker, in which the voice coil assembly and the diaphragm assembly are arranged in parallel, and the vibration of the voice coil assembly and the vibration of the diaphragm assembly are converted in non-codirectional directions, thereby reducing the thickness overlap and the displacement margin reservation, and further reducing the thickness of the speaker.

[0044] In some exemplary embodiments, Figure 1-Figure 3 As shown, a speaker can be applied to electronic devices to realize voice, entertainment and other functions of the electronic devices, such as mobile phones, wearable devices, portable computers, etc., to meet the needs of users.

[0045] The loudspeaker comprises a loudspeaker bracket assembly 1 , a diaphragm assembly 2 , a voice coil assembly 3 , a first magnetic component 4 , a second magnetic component 5 and a magnetic fluid 6 .

[0046] The speaker bracket assembly 1 extends along the first extension direction of the speaker (refer to Figure 2The speaker bracket assembly 1 is provided with a first groove 111 and an accommodating space 1221 in sequence, and an opening 1222 is provided on a side wall of the accommodating space 1221, so that the speaker bracket assembly 1 forms an air magnetic gap with a single-sided opening 1222, and the accommodating space 1221 is connected to the first groove 111 through the opening 1222.

[0047] In this embodiment, if Figure 1-Figure 3 As shown, the first groove 111 is, for example, arranged at the top of the speaker bracket assembly 1 to facilitate placement of the diaphragm assembly 2. The top of the diaphragm assembly 2 is left vacant to provide a vibration space for the diaphragm assembly 2.

[0048] In some examples, the diaphragm assembly 2 includes a diaphragm body 21 and an elastic support body 22, and the diaphragm body 21 is disposed in the first groove 111 through the elastic support body 22. The diaphragm body 21 is connected to the voice coil assembly 3.

[0049] The diaphragm body 21 , for example, includes a first part 211 , a middle part 212 and a second part 213 connected in sequence. The first part 211 , for example, is bonded to the speaker bracket assembly 1 , the middle part 212 is bonded to the elastic support body 22 , and the second part 213 , for example, is bonded to the voice coil assembly 3 .

[0050] The diaphragm body 21 is made of materials such as carbon fiber, metal, polymer film, etc., so that it has a better vibration effect.

[0051] The elastic support body 22 is, for example, a supporting foam, such as PORON, EVA, FR, etc., which has good compression performance and resilience performance. The elastic support body 22 is provided with an arched surface 221, and part of the structure of the diaphragm body 21 is attached to the arched surface 221, that is, the middle part 212 is attached to the arched surface 221, so that the middle part 212 is also arched.

[0052] In this embodiment, if Figure 2-Figure 5 As shown, the voice coil assembly 3 is suspended in the accommodating space 1221, and one end of the voice coil assembly 3 extends to the first groove 111 through the opening 1222 and is connected to the diaphragm assembly 2. When the voice coil assembly 3 vibrates, the diaphragm assembly 2 is stretched and compressed, pushing the air in front of the diaphragm assembly 2 to produce sound.

[0053] In some examples, the voice coil assembly 3 includes a plate body 31, a first voice coil 32 and a second voice coil 33, and the first voice coil 31 and the second voice coil 33 are arranged on the plate body 31 along the thickness direction thereof (refer to Figure 2 The Z axis is shown in the figure) and is attached to the plate body 31.

[0054] The plate body 31 is, for example, an insulating plate. The first voice coil 32 and the second voice coil 33 can be formed on the plate body 31 by means of printed circuit board (PCB) technology. The number of the first voice coil 32 and the number of the second voice coil 33 are related to the number of the first magnetic member 4 or the second magnetic member 5, which is subject to the actual situation. This application takes three as an example for explanation.

[0055] Reference Figure 7-Figure 10 As shown, the marks a, b, and c are through holes, and the plate body 31 has a front view F (front view) and a rear view R (rear view). The first first voice coil 32 starts from the positive pole (+) of the plate body 31, winds in a ring shape, and enters the through hole a of the front F, winds out from the through hole a in the rear R, winds a pattern (such as an eight-shaped or a ring shape, etc.), forms the first second voice coil 33, continues to wind, forms the second second voice coil 33, then enters the through hole b in the rear R, winds out from the through hole b in the front F, winds a pattern (such as an eight-shaped or a ring shape, etc.), forms the second first voice coil 32, continues to wind, forms the third first voice coil 32, and enters the through hole c of the front F, winds out from the through hole c of the rear R, winds a pattern, forms the third second voice coil 33, and winds a ring to the negative pole (-), so that in each magnetic circuit loop with the same magnetic flux direction, the voice coil current directions of the front F and the rear R of the plate body 31 are consistent.

[0056] Reference Figure 7-Figure 10 As shown, the positive and negative electrodes in the voice coil assembly 3 are fed with audio signals, causing it to vibrate under the action of the Lorentz force in the magnetic circuit, and the voice coil assembly 3 drives the diaphragm assembly 2 to stretch and compress in the axial direction of its arch, pushing the air in front of the diaphragm assembly 2 to make sounds. Among them, the elastic support body 22 under the diaphragm assembly 2 can provide support force and absorb high-frequency residual vibrations.

[0057] In this embodiment, if Figure 2-Figure 6 As shown, the first magnetic member 4 and the second magnetic member 5 are respectively disposed on the voice coil assembly 3 along the thickness direction thereof (refer to Figure 2 On both sides of the Z axis shown in FIG. 1 , the first magnetic member 4 and the second magnetic member 5 are respectively connected to the inner walls corresponding to the accommodating space 1221, namely the upper inner wall and the lower inner wall. The polarities of the first magnetic member 4 and the second magnetic member 5 are the same or opposite.

[0058] In some examples, the first magnetic member 4 includes a first magnetic body 41, the first magnetic body 41 has a first magnetic pole and a second magnetic pole along the first extension direction, the first magnetic pole and the second magnetic pole have opposite polarities, the first magnetic pole is, for example, an N pole, and the second magnetic pole is, for example, an S pole.

[0059] The second magnetic member 5 includes a second magnetic steel body 51, and the second magnetic steel body 51 has a third magnetic pole and a fourth magnetic pole along the first extension direction. The third magnetic pole and the fourth magnetic pole have opposite polarities, the third magnetic pole and the first magnetic pole have opposite polarities, and the fourth magnetic pole and the second magnetic pole have opposite polarities, that is, the third magnetic pole is, for example, an S pole, and the fourth magnetic pole is, for example, an N pole.

[0060] In some other examples, the first magnetic member 4 includes a plurality of first magnetic steel bodies 41, and the polarities of two adjacent first magnetic steel bodies 41 are the same. Figure 4 As shown, three are used as examples in this example for explanation. The first magnetic member 4 includes, for example, a first magnetic steel body 41A, a first magnetic steel body 41B and a first magnetic steel body 41C, wherein the second magnetic pole of the first magnetic steel body 41A is adjacent to the second magnetic pole of the first magnetic steel body 41B, both of which are S poles, and the first magnetic pole of the first magnetic steel body 41B is adjacent to the first magnetic pole of the first magnetic steel body 41C, both of which are N poles.

[0061] The second magnetic member 5 includes a plurality of second magnetic steel bodies 51, and the polarities of two adjacent second magnetic steel bodies are the same. Figure 4 As shown, three are used as examples in this example for explanation. The second magnetic member 5, for example, includes a second magnetic steel body 51A, a second magnetic steel body 51B, and a second magnetic steel body 51C, and the arrangement method thereof is the same as that of the first magnetic member 4 described above, and no further description is given here. The polarity of the magnetic steel body at the relative position of the second magnetic member 5 and the first magnetic member 4 is the same as the arrangement logic in the above example, and no further description is given here.

[0062] The first magnetic steel body 41 and the second magnetic steel body 51 arranged opposite thereto can form one or more magnetic circuits, for example, three magnetic circuits, to provide driving force to the voice coil assembly 3, and generate vibration under the action of the Lorentz force. The number of the three magnetic circuits is consistent with the number of the above-mentioned voice coils and corresponds to each other.

[0063] In addition, in order to ensure the stability of the first magnetic part 4 and the second magnetic part 5, the accommodating space 1221 has two inner walls arranged opposite to each other, namely an upper inner wall and a lower inner wall, and each inner wall is provided with at least one second groove 1223. The size and shape of the second groove 1223 are adapted to the size and shape of the first magnetic body 41 and the second magnetic body 51, so that the first magnetic body 41 and the second magnetic body 51 can be embedded in the second groove 1223.

[0064] The number of the second grooves 1223 is consistent with the number of the first magnetic steel bodies 41 and the second magnetic steel bodies 51 , so as to facilitate the placement of the first magnetic steel bodies 41 and the second magnetic steel bodies 51 .

[0065] The first magnetic body 41 and the second magnetic body 51 can be, for example, clamped in the second groove 1223 , or can be bonded to the second groove 1223 by glue, so as to improve the reliability of the connection and prevent the first magnetic body 41 and the second magnetic body 51 from being separated from the second groove 1223 .

[0066] The second groove 1223 protrudes from the speaker bracket assembly 1, so that the outer surface of the speaker bracket assembly 1 is convex. The outer side wall of the second groove 1223 is provided with a plurality of first reinforcing ribs 1224 to enhance the strength of the second groove 1223 and extend the service life of the speaker bracket assembly 1.

[0067] The first reinforcing rib 1224 is made of, for example, plastic or non-magnetic metal material to avoid interference with the sound of the speaker.

[0068] In this embodiment, if Figure 2 , Figure 3 As shown, the magnetic fluid 6 is filled in the accommodation space 1221 to cover the voice coil assembly 3, so that the voice coil assembly 3 is suspended in the air magnetic gap of the accommodation space 1221. The magnetic fluid 6 in the magnetic gap can dissipate heat and keep the voice coil assembly 3 fixed in the middle position.

[0069] In some exemplary embodiments, Figure 1 As shown, the speaker bracket assembly 1 includes a first bracket 11 and a second bracket 12, wherein the second bracket 12 is disposed on the side of the first bracket 11 and connected to the first bracket 11. The first bracket 11 and the second bracket 12 can be fixed by bonding, welding or integral molding.

[0070] The first groove 111 is disposed on the first bracket 11, and the accommodating space 1221 is disposed on the second bracket 12. A plurality of second reinforcing ribs 112 are disposed in the first groove 111 to enhance the structural strength of the first groove 111 and extend the service life of the speaker bracket assembly 1.

[0071] The second reinforcing rib 112 is made of, for example, plastic or non-magnetic metal material to avoid interference with the sound of the speaker.

[0072] In this embodiment, if Figure 2 , Figure 3 As shown, the second bracket 12 includes a first body 121 and a second body 122, and the second body 122 is provided with a receiving groove. When the first body 121 and the second body 122 are buckled, the receiving groove is configured as a receiving space 1221. The first body 121 and the second body 122 can be bonded together, for example, by glue, so that the connection between the first body 121 and the second body 122 is more reliable and avoids separation.

[0073] Of course, it is understandable that the above-mentioned accommodating groove is not limited to the second body 122, and the first body 121 can also be set, or both the first body 121 and the second body 122 are provided with accommodating grooves to jointly form the accommodating space 1221, which shall be subject to actual conditions.

[0074] Among them, the position of the opening 1222 is related to the accommodating groove. When the accommodating groove is set in the second body 122, the opening 1222 is set in the second body 122. When the accommodating groove is set in the first body 121, the opening 1222 is set in the first body 121. The specific situation shall prevail.

[0075] When the first body 121 and the second body 122 are buckled together, an air magnetic gap with a single-side opening 1222 is formed, so that the voice coil assembly 3 can extend into the first groove 111 and be connected to the diaphragm assembly 2 .

[0076] The present application also proposes an electronic device, including a speaker as in any of the above embodiments. The electronic device is, for example, a mobile phone, a wearable device, a portable computer, etc., to meet the needs of users. The speaker is set in the electronic device to realize the voice, entertainment and other functions of the electronic device.

[0077] The speaker in the present application can be designed to be ultra-thin and occupy a small space, and more space can be reserved for other components in the electronic device, making the internal layout of the electronic device more reasonable.

[0078] The speaker uses PCB printing technology to spread the first voice coil and the second voice coil flat on the insulating board, which greatly reduces the overall thickness of the voice coil assembly.

[0079] The first magnetic body and the second magnetic body are in the shape of a bar, and the magnetic circuit is arranged through one or more of them. Based on the voice coil winding layout, the problem of consistency of force direction of the energized coil in the magnetic circuit is solved.

[0080] The voice coil assembly and the diaphragm assembly are arranged in parallel, and the vibration of the voice coil assembly and the vibration of the diaphragm assembly are transformed in non-codirectional directions, which reduces the thickness superposition and displacement margin reservation, and further reduces the thickness of the speaker.

[0081] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0082] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0083] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A loudspeaker, characterized in that: include: A speaker bracket assembly, wherein a first groove and an accommodating space are sequentially arranged along a first extension direction of the speaker, a side wall of the accommodating space is arranged with an opening, and the accommodating space is communicated with the first groove through the opening; A diaphragm assembly, disposed in the first groove; A voice coil assembly is suspended in the accommodating space, one end of the voice coil assembly extends through the opening to the first groove and is connected to the diaphragm assembly; A first magnetic member and a second magnetic member are respectively arranged on both sides of the voice coil assembly along the thickness direction thereof and connected to the inner wall corresponding to the accommodating space; wherein the polarities of the first magnetic member and the second magnetic member are the same or opposite; and The magnetic fluid fills the accommodating space to cover the voice coil assembly.

2. The loudspeaker according to claim 1, characterized in that The first magnetic member includes at least one first magnetic steel body, the first magnetic steel body has a first magnetic pole and a second magnetic pole along the first extension direction, and the polarities of the first magnetic pole and the second magnetic pole are opposite; The second magnetic member includes at least one second magnetic steel body, the second magnetic steel body has a third magnetic pole and a fourth magnetic pole along the first extension direction, the third magnetic pole is opposite to the first magnetic pole in polarity, and the fourth magnetic pole is opposite to the second magnetic pole in polarity.

3. The loudspeaker according to claim 2, characterized in that When there are multiple first magnetic steel bodies, the polarities of two adjacent first magnetic steel bodies are the same; When there are a plurality of the second magnetic steel bodies, the polarities of two adjacent second magnetic steel bodies are the same.

4. The loudspeaker according to claim 2, characterized in that The accommodating space has two inner walls arranged opposite to each other, each of the inner walls is provided with at least one second groove, and the first magnetic steel body and the second magnetic steel body are respectively embedded in one of the second grooves; Wherein, the outer side wall of the second groove is provided with a plurality of first reinforcing ribs.

5. The loudspeaker according to claim 1, characterized in that The voice coil assembly comprises a plate body, a first voice coil and a second voice coil. The first voice coil and the second voice coil are arranged on both sides of the plate body along the thickness direction thereof and attached to the plate body.

6. The loudspeaker according to claim 1, characterized in that The diaphragm assembly includes a diaphragm body and an elastic support body, and the diaphragm body is arranged in the first groove through the elastic support body; wherein the diaphragm body is connected to the voice coil assembly.

7. The loudspeaker according to claim 6, characterized in that The elastic support body is provided with an arched surface, and a part of the structure of the diaphragm body is attached to the arched surface.

8. The loudspeaker according to claim 1, characterized in that The speaker bracket assembly includes a first bracket and a second bracket, wherein the second bracket is arranged on a side of the first bracket and connected thereto; Wherein, the first groove is arranged on the first bracket, and the accommodating space is arranged on the second bracket; Wherein, a plurality of second reinforcing ribs are arranged in the first groove.

9. The loudspeaker according to claim 8, characterized in that The second bracket includes a first body and a second body, and the first body and / or the second body is provided with an accommodating groove; When the first body and the second body are buckled together, the accommodating groove is configured as the accommodating space; The opening is arranged on the first body and / or the second body.

10. An electronic device, characterized in that: Comprising a speaker as described in any one of claims 1-9.

Images