CN219876099U - Speaker and electronic equipment - Google Patents

Abstract

The utility model belongs to the technical field of electronic products, and particularly relates to a loudspeaker and electronic equipment. The loudspeaker comprises a magnetic circuit unit and a vibration unit, wherein the magnetic circuit unit comprises a magnetic part, a connecting piece and a magnetic yoke, the connecting piece is sleeved outside the magnetic part, a first gap is formed between the magnetic circuit unit and the magnetic part, the magnetic yoke is sleeved outside the connecting piece, a second gap is formed between the magnetic yoke and the connecting piece, the vibration unit comprises a first vibration assembly and a second vibration assembly, the first vibration assembly and the second vibration assembly are respectively positioned at two sides of the magnetic part in the axial direction, the first vibration assembly is provided with a first voice coil, the first voice coil is suspended in the first gap, the second vibration assembly is provided with a second voice coil, and the second voice coil is suspended in the second gap. By using the loudspeaker in the technical scheme, the driving of the two vibration assemblies can be completed by adopting the magnetic loop generated by one magnetic piece, so that the operation efficiency is improved, fewer parts are adopted, and the occupied space of the magnetic circuit unit is reduced.

Description

Speaker and electronic equipment

Technical Field

The utility model belongs to the technical field of electronic products, and particularly relates to a loudspeaker and electronic equipment.

Background

The double-sided sounding loudspeaker is a composite loudspeaker unit with vibrating diaphragms on the front side and the back side to generate sound, improves the sensitivity of the whole loudspeaker on the basis of saving space, and is used in some special scenes. The effect of two-sided sound production is reached through setting up two-part magnetic circuit to traditional speaker, but can make speaker structure comparatively complicated like this, and the space that occupies is great, finally leads to the lower problem of sound production operating efficiency.

Disclosure of Invention

The utility model aims to at least solve the problem that the magnetic circuit structure of the traditional loudspeaker is complex. The aim is achieved by the following technical scheme:

a first aspect of the present utility model proposes a loudspeaker comprising:

the magnetic circuit unit comprises a magnetic part, a connecting piece and a magnetic yoke, wherein the connecting piece is sleeved outside the magnetic part, a first gap is formed between the connecting piece and the magnetic part, and the magnetic yoke is sleeved outside the connecting piece, and a second gap is formed between the magnetic yoke and the connecting piece;

the vibration unit comprises a first vibration assembly and a second vibration assembly, the first vibration assembly and the second vibration assembly are respectively located at two sides of the magnetic piece in the axial direction, the first vibration assembly is provided with a first voice coil, the first voice coil is suspended in the first gap, the second vibration assembly is provided with a second voice coil, and the second voice coil is suspended in the second gap.

Through the loudspeaker in this technical scheme, adopt the integrated configuration of magnetic circuit unit and vibration unit, the outside of magnetic part overlaps in proper order and is equipped with connecting piece and yoke, first clearance has between connecting piece and the magnetic part, have the second clearance between connecting piece and the yoke, the first voice coil of first vibration subassembly is in first clearance in suspension, can carry out the magnetic induction wire cutting of magnetic part when the speaker operation, and then realize the vibration of first vibration subassembly, the second voice coil of second vibration subassembly is in suspension in the second clearance, can carry out the magnetic induction wire cutting of magnetic part when the speaker operation, and then realize the vibration of second vibration subassembly, namely the speaker can realize the sound production operation of relative two directions, the sound production effect of speaker has been promoted, in addition, the magnetic circuit that adopts a magnetic part to produce can accomplish the drive to two vibration subassemblies in the utility model, and is simple in structure, the operating efficiency has been promoted simultaneously, and the part that adopts is less in the utility model has reduced the occupation space of magnetic circuit unit.

In addition, the loudspeaker according to the utility model may have the following additional technical features:

in some embodiments of the present utility model, the magnetic yoke includes a first magnetic conductive portion and a second magnetic conductive portion connected to each other, the first magnetic conductive portion and the second magnetic conductive portion are vertically disposed, one side of the first magnetic conductive portion is connected to the connecting member, and the second magnetic conductive portion and the connecting member form the second gap therebetween.

In some embodiments of the present utility model, the magnetic circuit unit includes a first magnetic conductive plate, the magnetic member and the connecting member are disposed at a same side of the first magnetic conductive plate, and the second voice coil is disposed between the first magnetic conductive plate and the second magnetic conductive portion in a penetrating manner and is located in the second gap.

In some embodiments of the utility model, the connector is a non-magnetically permeable member.

In some embodiments of the present utility model, the first vibration assembly further includes a first diaphragm and a first cone, one end of the first voice coil is suspended in the first gap, the other end of the first voice coil is connected to the first cone, and the first diaphragm is connected to an edge of the first cone;

and/or, the second vibration assembly further comprises a second vibrating diaphragm and a second cone, one end of the second voice coil is suspended in the second gap, the other end of the second voice coil is connected with the second cone, and the second vibrating diaphragm is connected with the edge of the second cone.

In some embodiments of the present utility model, the speaker further includes a fixing bracket, the magnetic circuit unit is disposed inside the fixing bracket, the vibration unit further includes a first centering component, the first centering component includes a first centering bracket and a first centering support piece connected to each other, one end of the first centering bracket away from the first centering support piece is connected to the first cone basin, and one end of the first centering support piece away from the first centering support piece is connected to the fixing bracket.

In some embodiments of the present utility model, the vibration unit further includes a second centering assembly including a second centering bracket and a second centering pad connected to each other, an end of the second centering bracket remote from the second centering pad being connected to the second diaphragm, and an end of the second centering pad remote from the second centering bracket being connected to the yoke.

In some embodiments of the present utility model, the fixing bracket includes a main body portion having a receiving cavity therein, and a support portion provided at a side of the main body portion facing the receiving cavity, and the magnetic circuit unit is provided in the receiving cavity and connected to the support portion.

In some embodiments of the present utility model, communication holes communicating with the outside are provided on the first centering bracket, the second centering bracket, the first cone, the second cone, the main body, and the support portion, respectively.

A second aspect of the present utility model proposes an electronic device having a speaker as described above.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 schematically shows an exploded structural schematic view of a speaker according to an embodiment of the present utility model;

fig. 2 schematically shows a schematic cross-sectional structure of a speaker according to an embodiment of the present utility model;

fig. 3 is a schematic view of a cycle of magnetic lines of force of a magnetic circuit unit of the speaker of fig. 2;

fig. 4 is a schematic structural view of the assembly of the magnetic circuit unit and the fixed bracket of the speaker of fig. 2;

fig. 5 is a schematic cross-sectional structure of the assembly of the magnetic circuit unit and the fixing bracket in fig. 4;

fig. 6 is a schematic structural view of the speaker of fig. 2 from another perspective of the magnetic circuit unit and mounting bracket assembly;

fig. 7 schematically shows a partial structural diagram of a speaker according to an embodiment of the present utility model;

fig. 8 is a schematic cross-sectional structure of the speaker of fig. 7.

The reference numerals in the drawings are as follows:

100. a speaker;

11. a magnetic member; 12. a connecting piece; 13. a yoke; 131. a first magnetic conduction part; 132. a second magnetic conduction part; 14. a first gap; 15. a second gap; 16. a first magnetic conductive plate; 17. a second magnetic conductive plate;

21. a first vibration assembly; 211. a first voice coil; 212. a first diaphragm; 213. a first cone basin; 22. a second vibration assembly; 221. a second voice coil; 222. a second diaphragm; 223. a second cone basin;

311. a first centering support; 312. a first centering support; 321. a second centering support; 322. a second centering bracket;

40. a fixed bracket; 41. a main body portion; 42. a support part;

50. the communication hole.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, 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 relationship descriptors used herein interpreted accordingly.

Fig. 1 schematically shows an exploded structural schematic view of a speaker 100 according to an embodiment of the present utility model. Fig. 2 schematically shows a schematic cross-sectional structure of a speaker 100 according to an embodiment of the present utility model. As shown in fig. 1 and 2, the present utility model proposes a speaker 100 and an electronic device. The loudspeaker 100 in the utility model comprises a magnetic circuit unit and a vibration unit, wherein the magnetic circuit unit comprises a magnetic part 11, a connecting piece 12 and a magnetic yoke 13, the connecting piece 12 is sleeved outside the magnetic part 11 and forms a first gap 14 with the magnetic part 11, the magnetic yoke 13 is sleeved outside the connecting piece 12 and forms a second gap 15 with the connecting piece 12, the vibration unit comprises a first vibration component 21 and a second vibration component 22, the first vibration component 21 and the second vibration component 22 are respectively positioned at two sides of the axial direction of the magnetic part 11, the first vibration component 21 is provided with a first voice coil 211, the first voice coil 211 is suspended in the first gap 14, the second vibration component 22 is provided with a second voice coil 221, and the second voice coil 221 is suspended in the second gap 15.

Through using the speaker 100 in this technical scheme, adopt the integrated configuration of magnetic circuit unit and vibration unit, the outside of magnetic part 11 overlaps in proper order and is equipped with connecting piece 12 and yoke 13, first clearance 14 has between connecting piece 12 and the magnetic part 11, second clearance 15 has between connecting piece 12 and the yoke 13, the first voice coil 211 of first vibration subassembly 21 is suspended in first clearance 14, can carry out the magnetic induction wire cutting of magnetic part 11 when speaker 100 operates, and then realize the vibration of first vibration subassembly 21, the second voice coil 221 of second vibration subassembly 22 is suspended in second clearance 15, can carry out the magnetic induction wire cutting of magnetic part 11 when speaker 100 operates, and then realize the vibration of second vibration subassembly 22, namely speaker 100 can realize the sound production operation of relative two directions, the sound production effect of speaker 100 has been promoted, in addition, the magnetic circuit that adopts a magnetic part 11 to produce can accomplish the drive to two vibration subassemblies, the simple structure has promoted the operating efficiency simultaneously, and the part that adopts in this utility model is less, and occupation space of magnetic circuit unit has been reduced.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the yoke 13 includes a first magnetic conductive portion 131 and a second magnetic conductive portion 132 connected to each other, the first magnetic conductive portion 131 and the second magnetic conductive portion 132 are vertically disposed, one side of the first magnetic conductive portion 131 is connected to the connecting member 12, and a second gap 15 is formed between the second magnetic conductive portion 132 and the connecting member 12. In this embodiment, the first magnetic conductive portion 131 can conduct the magnetic induction line and also plays a role of connecting the connecting piece 12 and the second magnetic conductive portion 132, so that the second gap 15 is formed between the second magnetic conductive portion 132 and the connecting piece 12, thereby improving reliability. In this embodiment, the magnetic yoke 13 has a receiving cavity, the magnetic member 11 and the connecting member 12 are both disposed in the receiving cavity, two ends of the first magnetic conductive portion 131 are connected to one ends of the second magnetic conductive portion 132 and the connecting member 12, and one end of the connecting member 12 is connected to the magnetic member 11.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the magnetic circuit unit includes a first magnetic conductive plate 16, the magnetic member 11 and the connecting member 12 are spaced apart on the same side of the first magnetic conductive plate 16, and a second voice coil 221 is disposed between the first magnetic conductive plate 16 and the second magnetic conductive portion 132 and is located in the second gap 15. In the present embodiment, the first magnetic conductive plate 16 can guide the magnetic lines of force of the magnetic material 11 from the yoke 13 back to the magnetic material 11 through the first magnetic conductive plate 16, thereby improving the magnetic field utilization ratio between the yoke 13 and the magnetic material 11. The outer edge of the first magnetic conductive plate 16 is flush with the outer edge of the connecting member 12, so that the second voice coil 221 of the second vibration assembly 22 passes through the space between the first magnetic conductive plate 16 and the magnetic yoke 13 and is finally suspended in the second gap 15, thereby improving the reliability of the loudspeaker 100 during operation.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the magnetic circuit unit includes a second magnetic conductive plate 17, the second magnetic conductive plate 17 is disposed on a side of the magnetic member 11 away from the first magnetic conductive plate 16, and the first voice coil 211 is disposed between the second magnetic conductive plate 17 and the first magnetic conductive portion 131 and is located in the first gap 14. In the present embodiment, the second magnetic conductive plate 17 can guide the magnetic lines of force of the magnetic material 11 from the magnetic material 11 to the yoke 13 through the second magnetic conductive plate 17, thereby improving the magnetic field utilization ratio between the yoke 13 and the magnetic material 11.

In some embodiments of the present utility model, as shown in fig. 2, the maximum dimension of the second magnetic conductive plate 17 in the first direction is similar to the maximum dimension of the magnetic member 11 in the first direction (typically, the second magnetic conductive plate 17 will be slightly larger), and the first direction is perpendicular to the vibration direction of the speaker 100. That is, the outer edge of the second magnetic conductive plate 17 in this embodiment is flush with the outer edge of the magnetic member 11, so that the first voice coil 211 of the first vibration assembly 21 passes through the space between the second magnetic conductive plate 17 and the first magnetic conductive portion 131 and is finally suspended in the first gap 14, thereby improving the reliability of the loudspeaker 100 during operation.

In some embodiments of the utility model, the connecting member 12 is a non-magnetically permeable member. In the present embodiment, the magnetic circuit connecting member 12 is a non-magnetically conductive metal member (for example, aluminum alloy, copper, non-magnetic steel, etc.), and can function as a short circuit ring to reduce nonlinearity of inductance. In other embodiments of the present utility model, the connecting member 12 may be a non-metal member such as a plastic member, and the weight of the speaker 100 may be reduced.

Specifically, the connecting member 12 in the present embodiment has a ring-like structure, and may have a square ring or a circular ring, and mainly functions to form a first magnetic gap with the magnetic member 11 and a second magnetic gap with the yoke 13, and also functions to connect the magnetic member 11 and the yoke 13.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the first vibration assembly 21 further includes a first diaphragm 212 and a first cone 213, one end of the first voice coil 211 is suspended in the first gap 14, the other end of the first voice coil 211 is connected to the first cone 213, and the first diaphragm 212 is connected to an edge of the first cone 213. And/or, the second vibration assembly 22 further includes a second diaphragm 222 and a second cone 223, one end of the second voice coil 221 is suspended in the second gap 15, the other end of the second voice coil 221 is connected with the second cone 223, and the second diaphragm 222 is connected with an edge of the second cone 223. In this embodiment, the first cone 213 can reciprocate relative to the first voice coil 211, the second cone 223 can reciprocate relative to the second voice coil 221, and the outside air can be pushed during the movement, so as to achieve the purpose of sounding. The first cone 213 and the fixed support 40 are connected to the first diaphragm 212, and the second cone 223 and the fixed support 40 are connected to the second diaphragm 222, so that the first diaphragm 212 and the second diaphragm 222 have certain rigidity and cannot deform under the action of cone motion, and the problem of sound distortion is reduced.

In the present embodiment, as shown in fig. 1 and 2, the inner diameter size of the first voice coil 211 of the first vibration assembly 21 is smaller than the inner diameter size of the second voice coil 221 of the second vibration assembly 22. In the operation process of the speaker 100, after the ac audio current is input into the first voice coil 211, the first voice coil 211 is moved in a changing manner under the combined action of the ac drive and the magnetic induction line of the magnetic member 11, and drives the first cone 213 and the second diaphragm 222 to vibrate, and simultaneously continuously pushes the air flow, thereby making a sound. The first cone 213 and the first diaphragm 212 mainly push air during operation, so as to achieve the effect of sounding. The second voice coil 221 functions in the same manner as the first voice coil 211 described above, and a detailed description thereof will not be provided. The first diaphragm 212 and the second diaphragm 222 are connected to the fixing support 40 by an adhesive manner.

Specifically, in the present embodiment, the vibrations of the first voice coil 211 of the first vibration assembly 21 and the second voice coil 221 of the second vibration assembly 22 are in phase (i.e., simultaneously outward or inward), which in turn pushes the sound production of the diaphragm and cone into phase. Meanwhile, the coils of the two vibration assemblies are inconsistent in size, staggered, and cannot collide when vibrating oppositely, so that reliability is improved.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the speaker 100 further includes a fixing bracket 40, the magnetic circuit unit is disposed inside the fixing bracket 40, and the vibration unit further includes a first centering assembly including a first centering bracket 312 and a first centering bracket 311 connected to each other, one end of the first centering bracket 312 away from the first centering bracket 311 is connected to the first cone 213, and one end of the first centering bracket 311 away from the first centering bracket 312 is connected to the fixing bracket 40. In the present embodiment, the inner end of the first centering support 311 is connected to the first centering bracket 312, the outer end of the first centering support 311 is connected to the fixing bracket 40, and when the speaker 100 vibrates, the inner side of the first centering support 311 follows the cone vibration of the first cone 213, and the outer side thereof is stationary. The first positioning assembly can provide a restoring force for the movement of the first cone 213 while also maintaining the first voice coil 211 in a correct position during the movement, improving the reliability of the first voice coil 211 and the overall speaker 100.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the vibration unit further includes a second centering assembly including a second centering bracket 322 and a second centering pad 321 connected to each other, one end of the second centering bracket 322 remote from the second centering pad 321 is connected to the second diaphragm 222, and one end of the second centering pad 321 remote from the second centering bracket 322 is connected to the yoke 13. In this embodiment, the inner end of the second centering support 321 is connected to the yoke 13, the outer end is connected to the second centering support 321, and the outer side follows the second cone 223 to vibrate during vibration, and the inner side is stationary. The second centering assembly can provide a restoring force for the movement of the second cone 223 while also maintaining the second voice coil 221 in the correct position during the movement, improving the reliability of the second voice coil 221 and the overall speaker 100. In addition, the first centering assembly and the second centering assembly are different in connection position, so that the first centering support 311 and the second centering support 321 can not collide when the first cone 213 and the second cone 223 vibrate in opposite directions, the reliability is improved, and the thickness of the whole loudspeaker 100 can be reduced.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the fixing bracket 40 includes a main body 41 having a receiving chamber therein, and a support 42 provided at a side of the main body 41 facing the receiving chamber, and the magnetic circuit unit is provided at the receiving chamber and connected to the support 42. In the present embodiment, the support portion 42 located in the accommodating cavity is used for fixing the yoke 13, so as to fix the connecting piece 12, the first magnetic conductive plate 16 and the second magnetic conductive plate 17, thereby improving the stability of the magnetic circuit unit of the speaker 100. The main body 41 is used for fixing the other end of the diaphragm and the other end of the centering support piece, and the cone and the diaphragm have deformability, so that the vibration of the cone and the diaphragm along the vibration direction can be ensured when the coil is electrified.

Specifically, in the present embodiment, as shown in fig. 4, 5 and 6, in order to avoid the vibration region of the first centering piece 311 or the second centering piece 321, the angle between the support portion 42 and the main body portion 41 may be set at an acute angle, that is, the support portion 42 is connected to the main body portion 41 in an oblique manner, and the yoke 13 is connected to the support portion 42 in an adhesive manner.

In some embodiments of the present utility model, as shown in fig. 7 and 8, communication holes 50 communicating with the outside are provided on the first centering bracket 312, the second centering bracket 322, the first cone 213, the second cone 223, the main body 41, and the support 42, respectively. In the present embodiment, the communication holes 50 in the plurality of components facilitate smooth flow of the air inside and outside when the speaker 100 vibrates, and are connected with the air outside, so that the problem that the air pressure greatly affects the sound effect when the speaker is closed is reduced, and the reliability is improved.

Specifically, in the present utility model, the first centering bracket 312, the second centering bracket 322, the first cone 213 and the second cone 223 may be made of paper or PP material, or may be made of light-density metal material such as aluminum.

Further, the principle in the operation of the magnetic circuit unit of the speaker 100 is as follows: since the connection member 12 is non-magnetically conductive, the magnetic force lines are circulated as shown in fig. 3, and the magnetic force lines start from the magnetic member 11 (the magnetic member 11 in this embodiment is a magnet), pass through the second magnetically conductive plate 17, the first magnetically conductive portion 131, the second magnetically conductive portion 132, and the first magnetically conductive plate 16, and finally return to the magnetic member 11. The magnetic force line circulation system of the magnetic part 11 of the loudspeaker 100 can drive the first voice coil 211 and the second voice coil 221, thereby improving the utilization rate of the magnet, saving the cost and reducing the weight of the magnetic circuit unit.

Further, the speaker 100 of the present utility model has the characteristics of ultra-thin and ultra-light structure, because the overall space occupied by the magnetic circuit unit is small. Meanwhile, the magnet induction line can be effectively utilized through design optimization such as increasing and decreasing components. In addition, the combined design of the first centering component and the second centering component can fully utilize the space, and further reduce the overall thickness of the loudspeaker 100.

The utility model also provides an electronic device with the loudspeaker 100.

Through using the speaker 100 in this technical scheme, adopt the integrated configuration of magnetic circuit unit and vibration unit, the outside of magnetic part 11 overlaps in proper order and is equipped with connecting piece 12 and yoke 13, first clearance 14 has between connecting piece 12 and the magnetic part 11, second clearance 15 has between connecting piece 12 and the yoke 13, the first voice coil 211 of first vibration subassembly 21 is suspended in first clearance 14, can carry out the magnetic induction wire cutting of magnetic part 11 when speaker 100 operates, and then realize the vibration of first vibration subassembly 21, the second voice coil 221 of second vibration subassembly 22 is suspended in second clearance 15, can carry out the magnetic induction wire cutting of magnetic part 11 when speaker 100 operates, and then realize the vibration of second vibration subassembly 22, namely speaker 100 can realize the sound production operation of relative two directions, the sound production effect of speaker 100 has been promoted, in addition, the magnetic circuit that adopts a magnetic part 11 to produce can accomplish the drive to two vibration subassemblies, the simple structure has promoted the operating efficiency simultaneously, and the part that adopts in this utility model is less, and occupation space of magnetic circuit unit has been reduced.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A loudspeaker, comprising:

the magnetic circuit unit comprises a magnetic part, a connecting piece and a magnetic yoke, wherein the connecting piece is sleeved outside the magnetic part, a first gap is formed between the connecting piece and the magnetic part, and the magnetic yoke is sleeved outside the connecting piece, and a second gap is formed between the magnetic yoke and the connecting piece;

the vibration unit comprises a first vibration assembly and a second vibration assembly, the first vibration assembly and the second vibration assembly are respectively located at two sides of the magnetic piece in the axial direction, the first vibration assembly is provided with a first voice coil, the first voice coil is suspended in the first gap, the second vibration assembly is provided with a second voice coil, and the second voice coil is suspended in the second gap.

2. The loudspeaker of claim 1, wherein the yoke comprises a first magnetically permeable portion and a second magnetically permeable portion connected, the first magnetically permeable portion and the second magnetically permeable portion are disposed vertically, one side of the first magnetically permeable portion is connected to the connecting member, and the second magnetically permeable portion and the connecting member form the second gap therebetween.

3. The loudspeaker of claim 2, wherein the magnetic circuit unit includes a first magnetic conductive plate, the magnetic member and the connecting member are disposed at a same side of the first magnetic conductive plate with a gap therebetween, and the second voice coil is disposed between the first magnetic conductive plate and the second magnetic conductive portion with a gap therebetween.

4. The loudspeaker of claim 1, wherein the connector is a non-magnetically permeable member.

5. The loudspeaker of claim 1, wherein the first vibration assembly further comprises a first diaphragm and a first cone, one end of the first voice coil is suspended in the first gap, the other end of the first voice coil is connected to the first cone, and the first diaphragm is connected to an edge of the first cone;

and/or, the second vibration assembly further comprises a second vibrating diaphragm and a second cone, one end of the second voice coil is suspended in the second gap, the other end of the second voice coil is connected with the second cone, and the second vibrating diaphragm is connected with the edge of the second cone.

6. The loudspeaker of claim 5, further comprising a fixed support, wherein the magnetic circuit unit is disposed inside the fixed support, wherein the vibration unit further comprises a first centering assembly, wherein the first centering assembly comprises a first centering support and a first centering support, wherein the first centering support is connected with the first cone basin at an end far away from the first centering support, and wherein the first centering support is connected with the fixed support at an end far away from the first centering support.

7. The loudspeaker of claim 6, wherein the vibration unit further comprises a second centering assembly comprising a second centering bracket and a second centering pad connected, an end of the second centering bracket remote from the second centering pad being connected to the second diaphragm, an end of the second centering pad remote from the second centering bracket being connected to the yoke.

8. The loudspeaker of claim 7, wherein the fixing bracket comprises a main body part and a supporting part, the main body part is internally provided with a containing cavity, the supporting part is arranged on one side of the main body part facing the containing cavity, and the magnetic circuit unit is arranged in the containing cavity and is connected with the supporting part.

9. The speaker of claim 8, wherein communication holes communicating with the outside are provided on the first centering bracket, the second centering bracket, the first cone, the second cone, the main body portion, and the support portion, respectively.

10. An electronic device characterized by having a loudspeaker according to any of claims 1-9.