CN117098047A - Speaker and sound generating device - Google Patents

Abstract

The invention discloses a loudspeaker and sound producing equipment, wherein the loudspeaker comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system is provided with a magnetic gap, and the magnetic gap is in a ring shape; the vibration system comprises a vibration film and a voice coil, wherein the vibration film is arranged in the magnetic gap, the vibration film comprises a plurality of vibration parts which are distributed along the circumferential direction of the magnetic circuit system at intervals, each vibration part comprises a first diaphragm and a second diaphragm which are connected and are oppositely arranged, the voice coil is arranged on the plurality of vibration parts, and the voice coil is used for driving the first diaphragm and the second diaphragm in each vibration part to be close to or far away from each other when being electrified. According to the technical scheme, the loudspeaker can produce sound at 360 degrees, so that the difference of sound production effects at different positions in the circumferential direction is avoided, and the use experience of a user on the loudspeaker is improved.

Description

Speaker and sound generating device

Technical Field

The invention relates to the technical field of speakers, in particular to a speaker and sound generating equipment using the same.

Background

Currently, the diaphragm of a speaker is generally configured to vibrate and sound only along the axial direction of the voice coil. So make the sound production direction of speaker singleness, the directionality is stronger relatively promptly, and then make the sound production effect of speaker in the different positions of circumference produce the difference easily, lead to influencing the user experience to the speaker.

Disclosure of Invention

The invention mainly aims to provide a loudspeaker, which aims to realize that the loudspeaker can produce sound at 360 degrees, and avoid the occurrence of difference of sound production effects at different positions in the circumferential direction so as to improve the use experience of a user on the loudspeaker.

To achieve the above object, the present invention provides a speaker including:

the magnetic circuit system is provided with a magnetic gap, and the magnetic gap is in a ring shape; and

the vibration system comprises a vibration film and a voice coil, wherein the vibration film is arranged in the magnetic gap, the vibration film comprises a plurality of vibration parts which are distributed along the circumferential direction of the magnetic circuit system at intervals, each vibration part comprises a first diaphragm and a second diaphragm which are connected and are oppositely arranged, the voice coil is arranged on the plurality of vibration parts, and the voice coil is used for driving each vibration part to approach or separate the first diaphragm and the second diaphragm when being electrified.

Optionally, the magnetic circuit system includes:

an inner magnetic circuit; and

the outer magnetic circuit surrounds the outer side of the inner magnetic circuit and is arranged at intervals with the inner magnetic circuit, and the outer magnetic circuit and the inner magnetic circuit are enclosed to form the magnetic gap.

Optionally, the inner magnetic circuit comprises a plurality of inner magnets, and the plurality of inner magnets are distributed at intervals in a ring shape;

the outer magnetic circuit comprises a plurality of outer magnets, the outer magnets are distributed at intervals in a ring shape, and magnetic poles of one ends, close to the inner magnets, of the outer magnets are oppositely arranged.

Optionally, each of the outer magnets is disposed corresponding to one of the inner magnets, and each of the vibrating portions is disposed between one of the outer magnets and one of the inner magnets.

Optionally, in the circumferential direction of the magnetic circuit system, a distance between opposite sides of the inner magnet and a distance between opposite sides of the outer magnet are both larger than a distance between opposite sides of the vibration part;

and/or, on a projection plane perpendicular to the direction of the inner magnet towards the outer magnet, the projection of the inner magnet and the projection of the outer magnet are completely overlapped, and the center lines of the inner magnet and the outer magnet are arranged corresponding to the center line of the vibration part;

and/or, in the axial direction of the magnetic circuit system, the sizes of the inner magnet and the outer magnet are equal to the size of the vibration part.

Optionally, the inner magnet and the outer magnet are both flat, and the inner magnet and the outer magnet which are correspondingly arranged are parallel.

Optionally, the first membrane and the second membrane are both flat plates and are perpendicular to the inner magnet and the outer magnet;

the vibrating part further comprises a third diaphragm, and two opposite sides of the third diaphragm are respectively connected with the first diaphragm and the second diaphragm.

Optionally, the third membrane is connected to a side of the first membrane and the second membrane, which is close to the external magnet;

and/or the third diaphragm is in an arc plate shape, and the concave cambered surface of the third diaphragm faces the inner magnet.

Optionally, the inner magnetic circuit further comprises an inner magnetic conduction plate, and the inner magnetic conduction plate is arranged on one side of the inner magnet facing the outer magnet;

and/or, the outer magnetic circuit further comprises an outer magnetic conduction plate, and the outer magnetic conduction plate is arranged on one side of the outer magnet facing the inner magnet.

Optionally, the inner magnetic circuit further comprises an inner connecting member connecting a plurality of the inner magnets.

Optionally, the inner connecting piece extends in a ring shape along the circumferential direction of the magnetic circuit system, the inner connecting piece is provided with a plurality of first clamping grooves, and each inner magnet is embedded in one first clamping groove;

and/or the inner connecting piece surrounds the outer sides of the inner magnets, the vibrating diaphragm further comprises a connecting part for connecting every two adjacent vibrating parts, the connecting part is provided with a clamping structure, the clamping structure comprises two clamping plates, and the two clamping plates are clamped on the opposite sides of the inner connecting piece;

And/or the inner connecting piece is positioned at the middle position in the axial direction of the magnetic circuit system.

Optionally, the external magnetic circuit further comprises an external connecting piece, and the external connecting piece is connected with a plurality of external magnets.

Optionally, the outer connecting piece extends to form a ring shape along the circumferential direction of the magnetic circuit system, the outer connecting piece is provided with a plurality of second clamping grooves, and each outer magnet is embedded in one second clamping groove;

and/or a plurality of outer magnets encircle the outer side of the outer connecting piece, and each vibrating part is provided with an avoidance port at the position of the outer connecting piece;

and/or the outer connecting piece is positioned at the middle position in the axial direction of the magnetic circuit system.

Optionally, the vibration part, the inner magnetic circuit and the outer magnetic circuit are all arranged at intervals.

Optionally, the diaphragm further includes a plurality of connection portions, and opposite sides of each connection portion are respectively connected to the first diaphragm and the second diaphragm that are close to each other in the two adjacent vibration portions.

Optionally, the connecting portion is located at one end of the first diaphragm and the second diaphragm near the inner magnetic circuit.

Optionally, the speaker further includes two cover plates, the two cover plates cover two ends of the inner magnetic circuit in an axial direction of the magnetic circuit system, and the two cover plates, the plurality of vibrating portions, and the plurality of connecting portions enclose a rear acoustic cavity.

Optionally, the vibrating diaphragm further includes a fixing plate, the fixing plate is connected to the connecting portion, and is disposed at an included angle with the connecting portion, and the fixing plate is further connected to the cover plate.

Optionally, the cover plate is provided with a notch, and the fixing plate is embedded in the notch;

and/or the number of the fixing plates is multiple, and each cover plate is connected with at least two connecting parts through at least two fixing plates.

Optionally, the speaker further comprises a support base connected to a side of one of the cover plates facing away from the other cover plate.

Optionally, the voice coil includes a first segment, a second segment, and a third segment, where the first segment and the second segment are respectively disposed on the first diaphragm and the second diaphragm, and are all disposed in an extending manner along an axial direction of the magnetic circuit system, and the third segment is connected to the adjacent first segment and the second segment;

and/or, the voice coil is printed on the vibrating diaphragm;

and/or, the voice coil is arranged on the outer side of the vibrating diaphragm.

The invention also provides sound production equipment, which comprises a first loudspeaker, wherein the first loudspeaker is the loudspeaker.

Optionally, the sound generating device further includes a housing, and the first speaker is disposed on an outer side of the housing;

the sound generating device further comprises a second loudspeaker, the second loudspeaker is a bass loudspeaker, the second loudspeaker is arranged in the shell, and sound generating holes are formed in the position, corresponding to the second loudspeaker, of the shell.

Optionally, the housing is defined to have an up-down direction, the first speaker is disposed on an upper surface of the housing, an axis of the first speaker is parallel to the up-down direction, and an axis of the second speaker is perpendicular to the up-down direction;

the first speaker and the second speaker are located on a center line of the housing in the up-down direction on a projection plane perpendicular to an axis of the second speaker.

When the loudspeaker of the technical scheme is used, as the vibrating diaphragm is arranged in the magnetic gap formed by the magnetic circuit system, after the voice coil arranged on the vibrating diaphragm is electrified, the voice coil can drive the first diaphragm and the second diaphragm of each vibrating part in the vibrating diaphragm to be close to or far away from each other due to stress in the magnetic field of the magnetic gap, so that air is extruded or sucked to push the air to form sound waves, and vibration sounding of the vibrating parts is realized. And a plurality of vibrating parts in the vibrating diaphragm are distributed at annular intervals along the circumferential direction of the magnetic circuit system, so that the vibrating diaphragm can vibrate and sound through the vibrating parts at all positions in the circumferential direction. Therefore, this scheme is through the improvement setting to magnetic circuit and vibration system, has realized that the speaker can carry out 360 sound production, avoids the speaker to produce the difference at the sound production effect of the ascending different positions of circumference to be favorable to promoting the user to the use experience of speaker.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of a speaker according to the present invention;

fig. 2 is a schematic diagram of the structure of the speaker of fig. 1 from another view;

fig. 3 is a schematic diagram of a structure of a further view of the speaker of fig. 1;

fig. 4 is a schematic structural diagram of a further view of the loudspeaker of fig. 1;

FIG. 5 is a schematic diagram of an exploded view of the speaker of FIG. 1;

fig. 6 is a partial schematic view of the speaker of fig. 5;

FIG. 7 is a schematic diagram of an explosion structure of the diaphragm, the inner magnetic circuit and the outer magnetic circuit in FIG. 6;

FIG. 8 is a schematic diagram of the diaphragm of FIG. 7;

FIG. 9 is a schematic diagram of an exploded construction of the inner magnetic circuit of FIG. 8;

FIG. 10 is a schematic diagram of an exploded structure of the outer magnetic circuit of FIG. 8;

fig. 11 is a schematic structural view of an embodiment of a vibration system of a speaker of the present invention;

Fig. 12 is a schematic structural view of another embodiment of a vibration system of a speaker of the present application.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Loudspeaker	313	Second membrane
10	Magnetic circuit system	314	Third diaphragm
				11	Magnetic gap	315	Avoidance port
13	Internal magnetic circuit	316	Connecting part
				131	Inner magnet	317	Clamping structure
133	Inner magnetic conductive plate	318	Clamping plate
				135	Inner connecting piece	319	Fixing plate
137	First clamping groove	33	Voice coil
				15	External magnetic circuit	331	First segment body
151	External magnet	333	Second segment body
				153	External magnetic conductive plate	335	Third segment body
155	External connecting piece	337	Transition section
				157	Second clamping groove	50	Cover plate
30	Vibration system	51	Rear acoustic cavity
				31	Vibrating diaphragm	53	Notch portion
311	Vibration part	70	Supporting seat
				312	First membrane

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

A loudspeaker, also known as a horn, is a transducer device used to convert an electrical signal into an acoustic signal. Currently, the diaphragm of a speaker is generally configured to vibrate and sound only along the axial direction of a voice coil, and medium-high frequency sound has strong directivity. So make the sound production direction of this kind of speaker singleness, also the directionality is stronger relatively promptly, and then make the sound production effect of speaker in the different positions of circumference produce the difference easily, lead to influencing the user experience to the speaker.

Therefore, based on the above consideration, in order to solve the problem that the current speaker has a single sound emitting direction and affects the use experience, the present application proposes a new speaker. The loudspeaker innovatively comprises a vibrating diaphragm, wherein a plurality of vibrating parts are annularly distributed at intervals along the circumferential direction of a magnetic circuit system, and each vibrating part comprises a first diaphragm and a second diaphragm which are opposite to each other. Simultaneously, combine the voice coil loudspeaker voice coil on the vibrating diaphragm, set up in the magnetic gap that is annular shape of magnetic circuit together to order about first diaphragm and the second diaphragm in each vibration portion in circumference mutually to be close to or keep away from when the circular telegram through the voice coil loudspeaker voice coil, and then realize that the speaker carries out 360 sound production in circumference through a plurality of vibration portions.

Next, the structure of the speaker according to the present application will be explained and illustrated with reference to fig. 1 to 6, 8, 11, and 12, and in an embodiment of the present application, the speaker 100 according to the present application includes a magnetic circuit system 10 and a vibration system 30. The magnetic circuit system 10 is formed with a magnetic gap 11, and the magnetic gap 11 is annular; the vibration system 30 includes a diaphragm 31 and a voice coil 33, the diaphragm 31 is disposed in the magnetic gap 11, the diaphragm 31 includes a plurality of vibration portions 311 distributed at intervals along a circumferential direction of the magnetic circuit 10, each vibration portion 311 includes a first diaphragm 312 and a second diaphragm 313 connected and disposed opposite to each other, the voice coil 33 is disposed in the plurality of vibration portions 311, and the voice coil 33 is configured to drive the first diaphragm 312 and the second diaphragm 313 in each vibration portion 311 to approach or separate from each other when energized.

The magnetic circuit 10 may be formed with a magnetic gap 11 to form a strong magnetic field there. The magnetic gap 11 may extend in the circumferential direction of the magnetic circuit 10 (also referred to as the circumferential direction of the speaker 100). The magnetic gap 11 may be formed in a complete circle, or may be formed by combining a plurality of gap segments arranged at intervals. In addition, the magnetic circuit system 10 may be formed by combining an inner magnetic circuit 13 and an outer magnetic circuit 15 as described below such that both ends of the magnetic gap 11 in the axial direction of the magnetic circuit system 10 (also referred to as the axial direction of the speaker 100) are provided in an open manner. Of course, the magnetic circuit 10 may further include a side magnetic circuit stacked on the same side of the inner magnetic circuit 13 and the outer magnetic circuit 15 in the axial direction of the magnetic circuit 10, such that one end of the magnetic gap 11 in the axial direction of the magnetic circuit 10 is provided in an opening.

The vibration system 30 can realize vibration and sound production of the diaphragm 31 by forcing the first diaphragm 312 and the second diaphragm 313 of each vibration part 311 in the diaphragm 31 to be close to or far from each other by being stressed by the magnetic field of the magnetic gap 11 when the voice coil 33 is electrified, and further pushing air to form sound waves by pressing or sucking air through the first diaphragm 312 and the second diaphragm 313 of the vibration part 311. The first diaphragm 312 and the second diaphragm 313 in the vibration part 311 may be directly connected, or may be indirectly connected. When the first diaphragm 312 and the second diaphragm 313 are directly connected, the vibration part 311 may include only the first diaphragm 312 and the second diaphragm 313. At this time, the first membrane 312 and the second membrane 313 may be disposed at an angle. When the first diaphragm 312 and the second diaphragm 313 are indirectly connected, the vibration portion 311 may further include a third diaphragm 314 for connecting the first diaphragm 312 and the second diaphragm 313, as described below. In this case, the first membrane 312 and the second membrane 313 may be disposed at an angle, or may be disposed in parallel. In addition, it should be noted that, the first diaphragm 312 and the second diaphragm 313 may be both flat (flat, i.e., two opposite surfaces are both flat plate structures), or may be arc-shaped (arc-shaped plate, i.e., two opposite surfaces are both arc-shaped plate structures), and the specific shape structures of the first diaphragm 312 and the second diaphragm 313 are not limited in the present application, and may be close to and far from each other under the action of the respective energized voice coils 33 to perform vibration and sound. The adjacent vibrating portions 311 may be connected by a connecting portion 316 as described below, but the adjacent vibrating portions 311 may be provided separately without a connection therebetween. In addition, the current directions of the voice coils 33 on the first diaphragm 312 and the second diaphragm 313 in the same vibrating portion 311 are opposite, so that when the voice coils 33 are energized, the voice coils 33 on the first diaphragm 312 and the second diaphragm 313 in the same vibrating portion 311 can be forced to approach or separate from the first diaphragm 312 and the second diaphragm 313 by opposite forces. Accordingly, the voice coil 33 may include a first segment 331 and a second segment 333 disposed on the first diaphragm 312 and the second diaphragm 313, respectively, and a third segment 335 connecting the first segment 331 and the second segment 333, and the third segment 335 and the first segment 331 and the second segment 333 may be substantially enclosed to form a U-shaped structure, so that the current flow on the second segment 333 may be opposite to the current flow on the first segment 331 after passing through the third segment 335. Of course, the voice coil 33 may be provided in plural numbers and independently provided on the first diaphragm 312 and the second diaphragm 313, respectively. At this time, the voice coil 33 on the first diaphragm 312 and the second diaphragm 313 may be directly supplied with opposite currents. In short, the present application is not particularly limited in the arrangement of the voice coil 33 on the diaphragm 31, and it is sufficient to ensure that the voice coil 33 on the first diaphragm 312 and the voice coil 33 on the second diaphragm 313 are used for passing the current in the opposite directions. Further, the voice coil 33 may be directly printed on the diaphragm 31 so that both may be formed as an integral structure. Of course, the voice coil 33 may be provided separately from the diaphragm 31, and directly fixed to the diaphragm 31 by an adhesive connection.

When the loudspeaker 100 according to the present application is used, since the diaphragm 31 is disposed in the magnetic gap 11 formed by the magnetic circuit system 10, after the voice coil 33 disposed on the diaphragm 31 is energized, the voice coil 33 can drive the first diaphragm 312 and the second diaphragm 313 of each vibration portion 311 in the diaphragm 31 to approach or separate from each other due to stress in the magnetic field of the magnetic gap 11, so that air is extruded or sucked to push air to form sound waves, and vibration sound of the vibration portion 311 is further realized. Also, the plurality of vibration parts 311 in the diaphragm 31 are also annularly spaced apart along the circumferential direction of the magnetic circuit system 10, so that the diaphragm 31 can make vibration sound in the circumferential direction through the vibration parts 311 everywhere. Therefore, the improved arrangement of the magnetic circuit system 10 and the vibration system 30 realizes that the loudspeaker 100 can produce 360 degrees of sound, and avoids the difference of sound production effects of the loudspeaker 100 at different positions in the circumferential direction, thereby being beneficial to improving the use experience of users to the loudspeaker 100.

Referring to fig. 4 to 7 in combination, in an embodiment of the present application, the magnetic circuit system 10 includes an inner magnetic circuit 13 and an outer magnetic circuit 15, the outer magnetic circuit 15 surrounds the outer side of the inner magnetic circuit 13 and is disposed at a distance from the inner magnetic circuit 13, and the outer magnetic circuit 15 and the inner magnetic circuit 13 enclose a magnetic gap 11.

The inner magnetic circuit 13, as the name implies, is the magnetic circuit arranged on the inside, and the outer magnetic circuit 15 is the magnetic circuit arranged on the outside. Wherein the inner magnetic circuit 13 may be as described below comprising a plurality of inner magnets 131 in annular spaced apart relation, and the outer magnetic circuit 15 may be as described below comprising a plurality of outer magnets 151 in annular spaced apart relation. Of course, while the magnetic circuit system 10 may include the side magnetic circuits described above, the inner magnetic circuit 13 may also include a center magnet and an upper magnetically permeable plate disposed above the center magnet, and the outer magnetic circuit 15 may be an outer magnetically permeable plate 153 surrounding the outer side of the inner magnetic circuit 13. The side magnetic circuit may be a lower magnetic conductive plate, which may be connected to the lower surface of the outer magnetic conductive plate 153 and stacked on the lower surface of the center magnet.

In the present embodiment, the magnetic circuit system 10 is provided to include the inner magnetic circuit 13 and the outer magnetic circuit 15 such that both ends of the magnetic gap 11 in the axial direction of the magnetic circuit system 10 are provided in an opening. Therefore, the magnetic gap 11 of the magnetic circuit system 10 has a simpler structure, and is beneficial to improving the convenience of processing and manufacturing the magnetic circuit system 10.

Referring to fig. 6 to 8 in combination, in an embodiment of the present application, the inner magnetic circuit 13 includes a plurality of inner magnets 131, and the plurality of inner magnets 131 are distributed in a ring shape at intervals; the outer magnetic circuit 15 includes a plurality of outer magnets 151, the plurality of outer magnets 151 are distributed at intervals in a ring shape, and magnetic poles of the ends of the outer magnets 151 and the inner magnets 131 close to each other are arranged in opposite directions.

The plurality of inner magnets 131 may be annularly spaced apart along the circumferential direction of the magnetic circuit 10, and the plurality of outer magnets 151 may surround the outer sides of the plurality of inner magnets 131. The inner magnets 131 and the outer magnets 151 may be disposed in a one-to-one correspondence as described below, or may be partially or completely staggered. The number of the inner magnets 131 and the number of the outer magnets 151 may be the same, or may be different. The inner magnet 131 and the outer magnet 151 may have a flat plate shape as described below, and may have an arc plate shape, and the shape and structure of the inner magnet 131 and the outer magnet 151 are not particularly limited in the present application. The number of the vibrating portions 311 may be the same as the number of the inner magnets 131 and/or the outer magnetic circuit 15, or may be different.

In the present embodiment, the inner magnetic circuit 13 is configured to include a plurality of inner magnets 131 arranged in annular intervals, and the outer magnetic circuit 15 is configured to include a plurality of outer magnets 151 arranged in annular intervals, so that a magnetic field of magnetic lines of force directed from the inner magnets 131 to the outer magnetic circuit 15 or from the outer magnets 151 to the inner magnetic circuit 13 is formed everywhere in the circumferential direction of the magnetic circuit 10. That is, the magnetic field of the magnetic gap 11 can be made uniform around the circumference so that the vibration portion 311 around the circumference produces sound uniformly to improve the uniformity of the sense of hearing around the circumference of the speaker 100. In addition, the arrangement is such that sound waves can pass therethrough to enhance the sound producing effect of the speaker 100.

Referring to fig. 6, in an embodiment of the present application, each of the outer magnets 151 is disposed corresponding to one of the inner magnets 131, and each of the vibrating portions 311 is disposed between one of the outer magnets 151 and one of the inner magnets 131.

In this embodiment, the inner magnets 131 and the outer magnets 151 are arranged in a one-to-one correspondence, so that a space with relatively strong magnetic field strength can be formed between each of the inner magnets 131 and one of the outer magnets 151. The vibration part 311 and the voice coil 33 are located between the corresponding inner magnet 131 and the corresponding outer magnet 151, so that the voice coil 33 after being conveniently electrified can receive relatively large acting force under the action of the relatively strong magnetic field, and the first diaphragm 312 and the second diaphragm 313 of the vibration part 311 can be effectively driven. Of course, it should be noted that, in other embodiments, the vibration part 311 may be provided corresponding to only one of the inner magnet 131 and the outer magnet 151, for example: the vibration part 311 may be provided corresponding to the inner magnet 131, and a gap defined by two adjacent outer magnets 151 may be provided corresponding to the vibration part 311. In this way, the sound wave generated by the vibration of the vibration part 311 can pass through the gap formed by the surrounding of the outer magnet 151 smoothly, and the sound effect of the loudspeaker 100 can be improved. In addition, the vibration part 311 may not be provided to correspond to both the inner magnet 131 and the outer magnet 151.

Referring to fig. 6, in an embodiment of the present application, in a circumferential direction of the magnetic circuit system 10, a distance between opposite sides of the inner magnet 131 and a distance between opposite sides of the outer magnet 151 are larger than a distance between opposite sides of the vibration portion 311.

In the present embodiment, the distance between the opposite sides of the inner magnet 131, the distance between the opposite sides of the outer magnet 151, and the distance between the opposite sides of the vibration portion 311 can be said to be the span dimensions of the inner magnet 131, the outer magnet 151, and the vibration portion 311 in the circumferential direction of the magnetic circuit 10. At this time, the distance between the opposite sides of the inner magnet 131 and the distance between the opposite sides of the outer magnet 151 are both larger than the distance between the opposite sides of the vibration part 311, so that the vibration part 311 can be sufficiently located in the magnetic field formed by the inner magnet 131 and the outer magnet 151 which are correspondingly arranged, so that the voice coil 33 on the vibration part 311 can effectively receive the acting force after being electrified. Of course, in other embodiments, in the circumferential direction of the magnetic circuit system 10, the distance between the opposite sides of the inner magnet 131 and the distance between the opposite sides of the outer magnet 151 are equal to the distance between the opposite sides of the vibration portion 311.

Referring to fig. 6, in an embodiment of the present application, on a projection plane perpendicular to a direction of the inner magnet 131 toward the outer magnet 151, a projection of the inner magnet 131 and a projection of the outer magnet 151 are completely overlapped, and a center line of the inner magnet 131 and a center line of the outer magnet 151 are disposed corresponding to a center line of the vibration portion 311.

The direction in which the inner magnet 131 faces the outer magnet 151 may be referred to as the radial direction of the magnetic circuit 10 or the speaker 100. The projection of the inner magnet 131 and the projection of the outer magnet 151 are completely overlapped, that is, the shapes and sizes of the inner magnet 131 and the outer magnet 151 are the same.

In the present embodiment, the projection of the inner magnet 131 and the projection of the outer magnet 151 are set to completely overlap, so that the inner magnet 131 and the outer magnet 151 have a uniform shape structure. In this case, the inner magnet 131 and the outer magnet 151 can be manufactured in a uniform and modularized manner, which is advantageous in that the convenience of manufacturing the same can be improved. Meanwhile, the inner magnet and the outer magnet 151 are used interchangeably, so that the flexibility of the use of the inner magnet and the outer magnet is improved. Further, the center lines of the inner magnet 131 and the outer magnet 151 are arranged corresponding to the center line of the vibration part 311, so that the first diaphragm 312 and the second diaphragm 313 of the vibration part 311 can vibrate and sound uniformly under the driving of the energized voice coil 33, and the uniformity of the sound producing effect of each vibration part 311 is improved. It should be noted that, in other embodiments, the center line of the vibration part 311 may be provided corresponding to only one of the center lines of the inner magnet 131 and the outer magnet 151 on a projection plane perpendicular to the direction of the inner magnet 131 toward the outer magnet 151, and may be provided offset from the center lines of the inner magnet 131 and the outer magnet 151.

Referring to fig. 3 and 6 in combination, in an embodiment of the present application, in an axial direction of the magnetic circuit system 10, the dimensions of the inner magnet 131 and the outer magnet 151 are equal to those of the vibration portion 311.

In the present embodiment, the dimensions of the inner magnet 131 and the outer magnet 151 and the height dimension of the vibrating portion 311 are set equal, so that the magnetic field generated between the inner magnet 131 and the outer magnet 151 can effectively act on the voice coil 33 on the vibrating portion 311. On the other hand, the irregular compactness of the two distributions can be realized, so that the volume of the part structure is reduced, and the convenience of installation and arrangement of the part structure in a limited space is improved.

Referring to fig. 6, in an embodiment of the present application, the inner magnet 131 and the outer magnet 151 are each flat, and the inner magnet 131 and the outer magnet 151 are correspondingly disposed in parallel.

In this embodiment, the inner magnet 131 and the outer magnet 151 are configured in a flat plate shape, so that the magnetic field lines of the inner magnet 131 and the outer magnet 151 are parallel to the direction of the inner magnet 131 towards the outer magnet 151, so that the magnetic field lines are as perpendicular as possible to the voice coil 33 on the first diaphragm 312 and the second diaphragm 313 of the vibration part 311, and the stress effect of the voice coil 33 after being electrified is improved to better drive the first diaphragm 312 and the second diaphragm 313 to vibrate and sound. On the other hand, the inner magnet 131 and the outer magnet 151 can be regular in shape, which is beneficial to improving convenience of processing and forming.

Referring to fig. 6, in an embodiment of the present application, the first diaphragm 312 and the second diaphragm 313 are both flat plates and are perpendicular to the inner magnet 131 and the outer magnet 151; the vibration part 311 further includes a third diaphragm 314, and opposite sides of the third diaphragm 314 are connected to the first diaphragm 312 and the second diaphragm 313, respectively.

In the present embodiment, the first diaphragm 312 and the second diaphragm 313 are also provided in a flat plate shape and perpendicular to the inner magnet 131 and the outer magnet 151. Therefore, the voice coil 33 on the first diaphragm 312 and the second diaphragm 313 can be perpendicular to the magnetic field lines between the inner magnet 131 and the outer magnet 151, so that the acting force of the voice coil 33 after being electrified can be sufficiently and efficiently used for driving the first diaphragm 312 and the second diaphragm 313 to vibrate and sound. Meanwhile, the shapes of the first membrane 312 and the second membrane 313 can be regular, so that convenience in processing and forming the first membrane 312 and the second membrane 313 is improved. And third diaphragm 314 may be used to connect first diaphragm 312 and second diaphragm 313 so that the two are disposed in parallel. In addition, the third diaphragm 314 also serves as an arrangement for the voice coil 33. For example: when the first diaphragm 312 is provided with the first segment 331 and the second diaphragm 313 is provided with the second segment 333, a third segment 335 for connecting the first segment 331 and the second segment 333 may be provided on the third diaphragm 314. Third diaphragm 314 may be an arcuate plate, as described below, or may be a flat plate.

Referring to fig. 6, in an embodiment of the present application, a third diaphragm 314 is connected to one side of the first diaphragm 312 and the second diaphragm 313 near the outer magnet 151.

In this embodiment, the third diaphragm 314 is disposed close to the outer magnet 151, so that the first diaphragm 312 and the second diaphragm 313 can have better elasticity, so that the voice coil 33 after being energized is driven to vibrate and sound.

Referring to fig. 6, in an embodiment of the present application, the third diaphragm 314 is in an arc shape, and the concave arc surface of the third diaphragm 314 is disposed towards the inner magnet 131.

In this embodiment, the third diaphragm 314 is configured in an arc plate shape, and the concave arc surface thereof is configured toward the inner magnet 131, so that the elasticity of the first diaphragm 312 and the second diaphragm 313 can be increased on the one hand, so that both are driven by the voice coil 33 that is energized. On the other hand, when the voice coil 33 includes the first and second segments 331 and 333 provided on the first and second diaphragms 312 and 313, respectively, and the third segment 335 connecting the first and second segments 331 and 333, as described below, smooth passage of the third segment 335 through the third diaphragm 314 can be facilitated. That is, the convenience of disposing the voice coil 33 on the diaphragm 31 is improved, and the possibility of occurrence of breakage is reduced.

Referring to fig. 6 and 9 in combination, in an embodiment of the present application, each inner magnet 131 further includes an inner magnetic conductive plate 133, and the inner magnetic conductive plate 133 is disposed on a side of the inner magnet 131 facing the outer magnet 151.

In this embodiment, the inner magnetic conductive plate 133 can guide the magnetic field generated by the inner magnet 131 so as to gather at one side facing the outer magnet 151, so as to be beneficial to enhancing the magnetic field between the inner magnet 131 and the outer magnet 151, so that the voice coil 33 on the vibrating portion 311 between the inner magnet 131 and the outer magnet 151 effectively drives the vibrating portion 311 after being electrified. Wherein, the shape of the inner magnetic conductive plate 133 can be adaptively set along with the shape of the inner magnet 131 to improve the attaching and installing effect of the inner magnetic conductive plate and the inner magnet. Similarly, in order to guide the magnetic field generated by the external magnets 151 to the side facing the internal magnets 131, in an embodiment of the present application, each external magnet 151 further includes an external magnetic conductive plate 153, and the external magnetic conductive plate 153 is disposed on the side facing the internal magnets 131 of the external magnet 151. Wherein, the shape of outer magnetic conductive plate 153 can follow the shape of outer magnet 151 to carry out the adaptability setting to improve the laminating installation effect to both.

Referring to fig. 6, 7 and 9, in an embodiment of the present application, the inner magnetic circuit 13 further includes an inner connecting member 135, and the inner connecting member 135 is connected to a plurality of inner magnets 131.

In this embodiment, the inner connecting piece 135 can connect the plurality of inner magnets 131, so as to connect, support and fix the plurality of inner magnets 131, thereby facilitating the subsequent one-time installation of the part of the structure on the speaker 100. The inner connecting member 135 may be annular as described below, so that it may be sleeved on the outer sides of the plurality of inner magnets 131 or disposed on the inner sides of the plurality of inner magnets 131. Of course, the inner connector 135 may also comprise a plurality of columns, wherein the same ends of the columns are connected, and the other ends of the columns are connected to the respective inner magnets 131. Therefore, the specific structure of the inner coupler 135 is not limited in the present application, and the plurality of inner magnets 131 may be connected and fixed.

Referring to fig. 6, 7 and 9, in an embodiment of the application, the inner connecting member 135 extends in a ring shape along the circumferential direction of the magnetic circuit system 10, and the inner connecting member 135 is provided with a plurality of first clamping grooves 137, and each of the inner magnets 131 is embedded in one of the first clamping grooves 137.

In the present embodiment, the inner connector 135 is provided in a ring shape, which is convenient for providing connection sites to the plurality of inner magnets 131 arranged in a ring shape at intervals. The inner magnet 131 is further embedded in the first clamping groove 137 on the inner connecting member 135 for mounting and fixing, so that on one hand, the connection between the inner magnet 131 and the first clamping groove is relatively simple, and further convenience in mounting the inner magnet 131 on the inner connecting member 135 is improved. On the other hand, the first locking groove 137 has a positioning function for the installation of the inner magnets 131, so that the plurality of inner magnets 131 can be accurately installed. In addition, by this arrangement, the compactness of the distribution between the inner magnet 131 and the inner link 135 can be improved, so that the entire volume of the portion can be reduced. Further, the inner magnet 131 may be further adhesively mounted in the first clamping groove 137 by adding glue to further improve the stability of the inner magnet 131. Of course, in other embodiments, the inner magnet 131 may be directly adhered to the side peripheral surface of the inner connector 135 by glue.

Referring to fig. 6, in an embodiment of the application, the inner connecting member 135 surrounds the outer sides of the plurality of inner magnets 131, the diaphragm 31 further includes a connecting portion 316 connecting each two adjacent vibrating portions 311, the connecting portion 316 is provided with a clamping structure 317, the clamping structure 317 includes two clamping plates 318, and the two clamping plates 318 are clamped on opposite sides of the inner connecting member 135.

In the present embodiment, the inner connecting member 135 surrounds the outer sides of the plurality of inner magnets 131, so that the inner connecting member 135 can be relatively close to both the inner magnets 131 and the diaphragm 31, thereby facilitating the installation of the inner magnets 131 on the inner connecting member 135, and the clamping structure 317 of the diaphragm 31 is installed on the inner connecting member 135. The diaphragm 31 further includes a connection portion 316, so that the plurality of vibration portions 311 are conveniently connected into a whole, so that the diaphragm 31 can be mounted on the loudspeaker 100 at one time, and the convenience of mounting the diaphragm 31 is improved. Further, the diaphragm 31 is clamped to the inner connecting member 135 through two clamping plates 318 of the clamping structure 317, so that the middle position of the diaphragm 31 in the axial direction of the magnetic circuit system 10 is limited and supported, thereby being beneficial to further improving the stability of the installation of the diaphragm 31.

Referring to fig. 6, in an embodiment of the present application, the number of the internal connectors 135 may be one in order to simplify the structure of the speaker 100. At this time, in order to improve stability of supporting and fixing the plurality of inner magnets 131, the inner connector 135 may be located at a middle position in the axial direction of the magnetic circuit system 10. Of course, it should be noted that, in other embodiments, the number of the inner connectors 135 may be plural, and the inner connectors may be disposed at intervals in the axial direction of the magnetic circuit 10, so as to fixedly support the plurality of inner magnets 131 at a plurality of positions in the axial direction of the magnetic circuit 10 to improve the stability of the fixed support.

Referring to fig. 6, 7 and 10, in an embodiment of the present application, the external magnetic circuit 15 further includes an external connection member 155, and the external connection member 155 is connected to the plurality of external magnets 151.

In this embodiment, the external connection member 155 can connect the plurality of external magnets 151, so as to connect, support and fix the plurality of external magnets 151, thereby facilitating the subsequent one-time installation of the portion on the speaker 100. The outer connector 155 may be in a ring shape as described below, so that it may be sleeved on the outer sides of the plurality of outer magnets 151 or disposed on the inner sides of the plurality of outer magnets 151. Of course, the outer connector 155 may also include a plurality of columns, wherein the same ends of the columns are connected, and the other ends of the columns are connected to the respective outer magnets 151. Therefore, the specific structure of the external connector 155 is not limited, and the plurality of external magnets 151 may be connected and fixed.

Referring to fig. 6, 7 and 10, in an embodiment of the application, the outer connecting member 155 extends in a ring shape along the circumferential direction of the magnetic circuit system 10, and the outer connecting member 155 is provided with a plurality of second clamping grooves 157, and each of the outer magnets 151 is embedded in one of the second clamping grooves 157.

In this embodiment, the outer connector 155 is provided in a ring shape, which is convenient for providing connection sites to the plurality of outer magnets 151 arranged in a ring shape at intervals. And further inlay the outer magnet 151 and locate the second draw-in groove 157 on the outer connecting piece 155 and install fixedly, on the one hand can make the connection between the two comparatively simple, and then be favorable to improving the convenience of outer magnet 151 installation on the outer connecting piece 155. On the other hand, the second clamping groove 157 can have a positioning function on the installation of the outer magnets 151, so that the plurality of outer magnets 151 can be accurately installed. In addition, by this arrangement, the compactness of the distribution between the outer magnet 151 and the outer link 155 can be improved, so that the entire volume of the portion can be reduced. Further, the outer magnet 151 may be further mounted by being adhered to the second clamping groove 157 by adding glue, so as to further improve the stability of mounting the outer magnet 151. Of course, in other embodiments, the outer magnet 151 may be directly adhered to the side peripheral surface of the outer connector 155 by glue.

Referring to fig. 6 to 8 in combination, in an embodiment of the application, a plurality of external magnets 151 encircle the outer side of the external connection member 155, and each vibration portion 311 is provided with a relief opening 315 at the position of the external connection member 155.

In this embodiment, the avoiding opening 315 is formed on the vibration portion 311, and the outer connecting member 155 is disposed in the avoiding opening 315, so that the outer connecting member 155, the outer magnet 151 and the diaphragm 31 are distributed more compactly, so as to reduce the overall volume of the speaker 100, and improve the appearance of the speaker 100.

Referring to fig. 6, in an embodiment of the present application, the number of the external connectors 155 may be one in order to simplify the structure of the speaker 100. At this time, in order to improve stability of supporting and fixing the plurality of outer magnets 151, the outer link 155 may be located at a middle position in the axial direction of the magnetic circuit system 10. Of course, it should be noted that, in other embodiments, the number of the external connectors 155 may be plural, and the external connectors may be disposed at intervals in the axial direction of the magnetic circuit 10, so as to fixedly support the plurality of external magnets 151 at a plurality of positions in the axial direction of the magnetic circuit 10, thereby improving the stability of the fixed support. In addition, the inner connector 135 described above in the outer connector 155 may be formed as a separate body, or may be formed as an integral body to form a component.

Referring to fig. 6, in an embodiment of the present application, the vibration portion 311 is disposed at intervals from the inner magnetic circuit 13 and the outer magnetic circuit 15.

In this embodiment, gaps are formed between the vibrating portion 311 and the inner magnetic circuit 13 and the outer magnetic circuit 15, so that noise generated by contact friction between the vibrating portion 311 and the inner magnetic circuit 13 and the outer magnetic circuit 15 in the vibrating process is avoided, and further the sounding effect of the vibrating portion 311 is improved.

Referring to fig. 6 and 8 in combination, in an embodiment of the application, the diaphragm 31 further includes a plurality of connection portions 316, and opposite sides of each connection portion 316 are respectively connected to the first diaphragm 312 and the second diaphragm 313 that are adjacent to each other in the two adjacent vibration portions 311.

The connection portion 316 is used to connect two adjacent vibration portions 311, wherein when one side of the connection portion 316 is connected to the first diaphragm 312 in one vibration portion 311, the other side is connected to the second diaphragm 313 in the other adjacent vibration portion 311. The connection portion 316 may have an arc-like plate shape, or may have a flat plate shape.

In the present embodiment, each adjacent vibrating portion 311 is connected by the connecting portion 316, so that a plurality of vibrating portions 311 can be connected to form one body. This facilitates the one-time mounting of the vibration part 311 on the speaker 100 and also facilitates the connection arrangement of the voice coil 33 on the diaphragm 31. For example: a third stage 335 for connecting the first stage 331 on the first diaphragm 312 and the second stage 333 on the second diaphragm 313, which are adjacent to each other, of the two adjacent vibrating portions 311 may be provided on the connecting portion 316. Furthermore, the connection portion 316 may also be used to give a mounting position for mounting and fixing the diaphragm 31. Meanwhile, the vibrating diaphragm 31 can be installed and fixed and vibrated by the connecting part 316 and the vibrating part 311 respectively, so that the influence of the installation and fixation of the vibrating diaphragm 31 on the vibration and sound of the vibrating part 311 is avoided, and the vibration and sound effect of the vibrating part 311 is improved.

Referring to fig. 6 and 8 in combination, in an embodiment of the present application, the connection portion 316 is located at one end of the first diaphragm 312 and the second diaphragm 313 near the inner magnetic circuit 13.

In the present embodiment, the connection portion 316 is disposed at one end of the first diaphragm 312 and the second diaphragm 313 near the inner magnetic circuit 13, so that the connection portion 316 does not greatly hinder the vibration of the vibration portion 311, thereby facilitating the vibration sounding of the vibration portion 311.

Referring to fig. 1, 3 and 5 in combination, in an embodiment of the application, the speaker 100 further includes two cover plates 50, the two cover plates 50 are covered on two ends of the plurality of inner magnetic circuits 13 in the axial direction of the magnetic circuit system 10, and the two cover plates 50, the plurality of vibration portions 311 and the plurality of connection portions 316 enclose to form a rear acoustic cavity 51.

In this embodiment, the two cover plates 50 can isolate the space between the inner and outer sides of the diaphragm 31 to form the rear acoustic cavity 51 around the vibrating portion 311 and the plurality of connecting portions 316, so as to prevent the sound from being shorted and improve the sound effect. On the other hand, the cover plate 50 can also be used for supporting and limiting the inner magnet 131.

Referring to fig. 1, 3 and 8, in an embodiment of the application, the diaphragm 31 further includes a fixing plate 319, where the fixing plate 319 is connected to the connecting portion 316 and disposed at an angle with respect to the connecting portion 316, and the fixing plate 319 is further connected to the cover plate 50.

In this embodiment, the fixing plate 319 is disposed on the connecting portion 316 of the diaphragm 31, so that the end portion of the diaphragm 31 in the axial direction of the magnetic circuit system 10 is conveniently fixed to the cover plate 50 by the fixing plate 319, and further the end portion of the diaphragm 31 in the axial direction of the magnetic circuit system 10 is also fixed and supported, so as to further improve the stability of the installation of the diaphragm 31.

Referring to fig. 1 and 5 in combination, in an embodiment of the application, the cover plate 50 is provided with a notch 53, and the fixing plate 319 is embedded in the notch 53.

In the present embodiment, the fixing plate 319 is embedded in the notch 53, so that the distribution between the diaphragm 31 and the cover plate 50 is more compact and attractive, which is beneficial to reducing the volume of the speaker 100 and improving the appearance of the speaker 100. On the other hand, the notch 53 can also play a role in positioning the installation of the diaphragm 31, thereby being beneficial to improving the accuracy of the installation of the diaphragm 31.

Referring to fig. 1, in an embodiment of the present application, the number of the fixing plates 319 is plural, and each cover plate 50 is connected with at least two connecting portions 316 through at least two fixing plates 319.

In this embodiment, each cover plate 50 is connected to the corresponding connecting portion 316 through at least two fixing plates 319, so as to increase the fastening force between the diaphragm 31 and the cover plate 50, which is further beneficial to improving the stability of the installation of the diaphragm 31. Wherein, the fixing plates 319 at two ends of the diaphragm 31 in the axial direction of the magnetic circuit system 10 may be disposed in a one-to-one correspondence manner, so that two opposite ends of the diaphragm 31 in the axial direction of the magnetic circuit system 10 may be stressed uniformly, thereby further improving the stability of the installation of the diaphragm 31.

Referring to fig. 3, in an embodiment of the present application, the speaker 100 further includes a support base 70, and the support base 70 is connected to a side of one cover plate 50 facing away from the other cover plate 50.

In the present embodiment, the supporting seat 70 is convexly disposed on the cover plate 50, so that the speaker 100 is supported and placed by the supporting seat 70 conveniently, and the influence of the vibration of the diaphragm 31 due to the extrusion of foreign objects on the sound producing effect of the speaker 100 is avoided.

In an embodiment of the present application, the plurality of inner magnets 131, the plurality of outer magnets 151 and the plurality of vibrating portions 311 are all uniformly spaced around the axis of the magnetic circuit system 10.

In this embodiment, the plurality of inner magnets 131, the plurality of outer magnets 151 and the plurality of vibrating portions 311 are uniformly distributed in the circumferential direction, so that the speaker 100 can generate sound more uniformly around the circumferential direction, the consistency of the hearing sense of the user at different positions in the circumferential direction is improved, and further the use experience of the user on the speaker 100 is further improved.

Referring to fig. 11 or 12, in an embodiment of the application, the voice coil 33 includes a first segment 331, a second segment 333, and a third segment 335, wherein the first segment 331 and the second segment 333 are respectively disposed on the first diaphragm 312 and the second diaphragm 313, and each extends along an axial direction of the magnetic circuit 10, and the third segment 335 connects adjacent first segment 331 and second segment 333.

In the present embodiment, the voice coil 33 is provided to include the first segment 331 provided on the first diaphragm 312, the second segment 333 provided on the second diaphragm 313, and the third segment 335 provided on the third diaphragm 314 or the connection portion 316 described above (the third segment 335 provided on the third diaphragm 314 may be used to connect the first segment 331 on the first diaphragm 312 and the second segment 333 on the second diaphragm 313 in the same vibration portion 311, and the third segment 335 provided on the connection portion 316 may be used to connect the first segment 331 on the first diaphragm 312 and the second segment 333 on the second diaphragm 313 in the adjacent vibration portion 311), so that the voice coil 33 can be continuously arranged on the diaphragm 31, thereby facilitating the number of voice coils 33 to be provided. Where the vibrating portions 311 of the diaphragm 31 are provided with the above-described avoidance openings 315, the axial direction of the magnetic circuit 10 may be defined as the up-down direction, the portion of each vibrating portion 311 located above the avoidance opening 315 may be defined as the upper half portion, and the portion located below the avoidance opening 315 may be defined as the lower half portion. At this time, referring to fig. 11, two voice coils 33 may be employed to respectively arrange the upper half and the lower half of the plurality of vibration portions 311. That is, one voice coil 33 is for being continuously disposed on the upper half portions of the plurality of vibration portions 311, the other voice coil 33 is for being continuously disposed on the lower half portions of the plurality of vibration portions 311, and it is sufficient to follow that the first diaphragm 312 is provided with the first stage body 331 and the second diaphragm 313 is provided with the second stage body 333, and the third stage body 335 connects the adjacent first stage body 331 and second stage body 333. Of course, in order to simplify the number of voice coils 33, one voice coil 33 may be used to simultaneously arrange the upper half and the lower half of the plurality of vibration parts 311. At this time, referring to fig. 12, the first and second segments 331 and 333 on the first and second diaphragms 312 and 313 in the lower half may be connected by the third segment 335. Meanwhile, the first segment 331 on the first diaphragm 312 in the lower half and the first segment 331 on the first diaphragm 312 in the corresponding upper half may be connected by a transition 337 of the voice coil 33, and the second segment 333 on the second diaphragm 313 in the lower half and the second segment 333 on the second diaphragm 313 in the corresponding upper half may be connected by another transition 337 of the voice coil 33. While the first segment 331 on the first diaphragm 312 in the upper half and the second segment 333 on the second diaphragm 313 of the adjacent upper half may still be connected by the third segment 335, the second segment 333 on the second diaphragm 313 in the upper half and the first segment 331 on the first diaphragm 312 of the adjacent upper half may also be connected by the third segment 335.

In one embodiment of the present application, the voice coil 33 is printed on the diaphragm 31.

In the present embodiment, the voice coil 33 is printed on the diaphragm 31, which can make the arrangement of the voice coil 33 simpler on the one hand. On the other hand, the voice coil 33 and the diaphragm 31 may be formed as an integral structure, thereby improving the stability of the arrangement of the voice coil 33 on the diaphragm 31.

In one embodiment of the present application, the voice coil 33 is disposed outside the diaphragm 31.

In the present embodiment, the voice coil 33 is disposed outside the diaphragm 31 so that the voice coil 33 is disposed with a large operation, thereby facilitating the convenience of the voice coil 33 disposed on the diaphragm 31. Of course, in other embodiments, the voice coil 33 may be disposed inside the diaphragm 31.

The application also provides a sound generating device, which comprises a first loudspeaker, wherein the specific structure of the first loudspeaker refers to the embodiment, and because the sound generating device adopts all the technical schemes of all the embodiments, the sound generating device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. The sound generating device may be a sound box, or may be a tablet, a television, a mobile phone, or the like. In addition, the number of the first speakers may be one, or may be two or more.

In an embodiment of the application, the sound generating device further includes a housing, and the first speaker is disposed outside the housing; the sound generating device further comprises a second loudspeaker, the second loudspeaker is a bass loudspeaker, the second loudspeaker is arranged in the shell, and a sound outlet is formed in the position, corresponding to the second loudspeaker, of the shell.

In this embodiment, use first speaker collocation second speaker, because first speaker uses at the middle-high frequency sound production frequency channel, and the second speaker is the woofer again, and then make things convenient for sound production equipment to carry out the sound production of suitability and improve sound production effect of sound production equipment through corresponding first speaker and second speaker at each frequency channel. The first loudspeaker is arranged on the outer side of the shell, and can avoid the blocking influence of the shell on the sound of the middle-high frequency band with strong directivity, which is emitted by the first loudspeaker, so that the first loudspeaker can sound better in 360 degrees in the circumferential direction. The second loudspeaker is arranged on the inner side of the shell, and the low-frequency band has strong sound diffraction capability, namely lower directivity, so that the second loudspeaker in the shell can sound the surrounding better, and the compactness of the second loudspeaker in the shell is improved. The frequency band played by the second speaker may be set below 1 KHz. Further, in a state that the sound generating device is normally arranged and used, the housing is defined to have an up-down direction, the first speaker can be arranged on the upper surface of the housing, the axis of the first speaker can be parallel to the up-down direction, and the axis of the second speaker can be perpendicular to the up-down direction; the first speaker and the second speaker may be located on a center line of the cabinet in the up-down direction on a projection plane perpendicular to an axis of the second speaker. So make things convenient for first speaker and second speaker to carry out even sound production to the circumference of casing, further improve the uniformity of hearing everywhere around sound production equipment.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.

Claims (24)

1. A loudspeaker, comprising:

the magnetic circuit system is provided with a magnetic gap, and the magnetic gap is in a ring shape; and

the vibration system comprises a vibration film and a voice coil, wherein the vibration film is arranged in the magnetic gap, the vibration film comprises a plurality of vibration parts which are distributed along the circumferential direction of the magnetic circuit system at intervals, each vibration part comprises a first diaphragm and a second diaphragm which are connected and are oppositely arranged, the voice coil is arranged on the plurality of vibration parts, and the voice coil is used for driving each vibration part to approach or separate the first diaphragm and the second diaphragm when being electrified.

2. The loudspeaker of claim 1, wherein the magnetic circuit system comprises:

an inner magnetic circuit; and

the outer magnetic circuit surrounds the outer side of the inner magnetic circuit and is arranged at intervals with the inner magnetic circuit, and the outer magnetic circuit and the inner magnetic circuit are enclosed to form the magnetic gap.

3. The loudspeaker of claim 2, wherein the inner magnetic circuit comprises a plurality of inner magnets, the plurality of inner magnets being annularly spaced apart;

the outer magnetic circuit comprises a plurality of outer magnets, the outer magnets are distributed at intervals in a ring shape, and magnetic poles of one ends, close to the inner magnets, of the outer magnets are oppositely arranged.

4. A loudspeaker according to claim 3, wherein each of said outer magnets is disposed corresponding to one of said inner magnets, and each of said vibrating portions is disposed between one of said outer magnets and one of said inner magnets.

5. The speaker of claim 4, wherein a distance between opposite sides of the inner magnet and a distance between opposite sides of the outer magnet are each larger than a distance between opposite sides of the vibrating portion in a circumferential direction of the magnetic circuit;

and/or, on a projection plane perpendicular to the direction of the inner magnet towards the outer magnet, the projection of the inner magnet and the projection of the outer magnet are completely overlapped, and the center lines of the inner magnet and the outer magnet are arranged corresponding to the center line of the vibration part;

and/or, in the axial direction of the magnetic circuit system, the sizes of the inner magnet and the outer magnet are equal to the size of the vibration part.

6. The loudspeaker of claim 4, wherein the inner magnet and the outer magnet are each flat plates, and the inner magnet and the outer magnet are disposed in parallel.

7. The loudspeaker of claim 6, wherein the first diaphragm and the second diaphragm are each flat and perpendicular to the inner magnet and the outer magnet;

the vibrating part further comprises a third diaphragm, and two opposite sides of the third diaphragm are respectively connected with the first diaphragm and the second diaphragm.

8. The loudspeaker of claim 7, wherein the third diaphragm is connected to a side of the first diaphragm and the second diaphragm adjacent to the outer magnet;

and/or the third diaphragm is in an arc plate shape, and the concave cambered surface of the third diaphragm faces the inner magnet.

9. A loudspeaker according to claim 3, wherein the inner magnetic circuit further comprises an inner magnetically permeable plate provided on a side of the inner magnet facing the outer magnet;

and/or, the outer magnetic circuit further comprises an outer magnetic conduction plate, and the outer magnetic conduction plate is arranged on one side of the outer magnet facing the inner magnet.

10. A loudspeaker according to claim 3, wherein the internal magnetic circuit further comprises an internal connector connecting a plurality of the internal magnets.

11. The speaker of claim 10, wherein said inner connection member extends in a ring shape in a circumferential direction of said magnetic circuit, said inner connection member being provided with a plurality of first clamping grooves, each of said inner magnets being embedded in one of said first clamping grooves;

and/or the inner connecting piece surrounds the outer sides of the inner magnets, the vibrating diaphragm further comprises a connecting part for connecting every two adjacent vibrating parts, the connecting part is provided with a clamping structure, the clamping structure comprises two clamping plates, and the two clamping plates are clamped on the opposite sides of the inner connecting piece;

and/or the inner connecting piece is positioned at the middle position in the axial direction of the magnetic circuit system.

12. A loudspeaker according to claim 3, wherein the external magnetic circuit further comprises an external connection member connecting a plurality of the external magnets.

13. The loudspeaker of claim 12, wherein the outer connecting member extends in a ring shape in a circumferential direction of the magnetic circuit, the outer connecting member is provided with a plurality of second clamping grooves, and each of the outer magnets is embedded in one of the second clamping grooves;

And/or a plurality of outer magnets encircle the outer side of the outer connecting piece, and each vibrating part is provided with an avoidance port at the position of the outer connecting piece;

and/or the outer connecting piece is positioned at the middle position in the axial direction of the magnetic circuit system.

14. The loudspeaker of claim 2, wherein the vibrating portion is spaced apart from both the inner magnetic circuit and the outer magnetic circuit.

15. The loudspeaker of claim 2, wherein the diaphragm further comprises a plurality of connection portions, opposite sides of each of the connection portions being respectively connected to the first diaphragm and the second diaphragm adjacent to each other of the two adjacent vibration portions.

16. The loudspeaker of claim 15, wherein the connection is located at an end of the first diaphragm and the second diaphragm that is proximate to the inner magnetic circuit.

17. The loudspeaker of claim 16, further comprising two cover plates, wherein the two cover plates cover both ends of the inner magnetic circuit in an axial direction of the magnetic circuit, and wherein the two cover plates, the plurality of vibration parts, and the plurality of connection parts enclose a rear acoustic cavity.

18. The loudspeaker of claim 17, wherein the diaphragm further comprises a fixed plate, the fixed plate being connected to the connection portion and disposed at an angle to the connection portion, the fixed plate further being connected to the cover plate.

19. The speaker of claim 18, wherein the cover plate is provided with a notch portion, the fixing plate being embedded in the notch portion;

and/or the number of the fixing plates is multiple, and each cover plate is connected with at least two connecting parts through at least two fixing plates.

20. The loudspeaker of claim 17, further comprising a support base attached to a side of one of the cover plates facing away from the other cover plate.

21. The loudspeaker of any one of claims 1 to 20, wherein the voice coil includes a first segment, a second segment, and a third segment, the first segment and the second segment being provided to the first diaphragm and the second diaphragm, respectively, and each extending in an axial direction of the magnetic circuit, the third segment connecting adjacent first segment and second segment;

And/or, the voice coil is printed on the vibrating diaphragm;

and/or, the voice coil is arranged on the outer side of the vibrating diaphragm.

22. A sound generating device comprising a first speaker, the first speaker being a speaker as claimed in any one of claims 1 to 21.

23. The sound emitting apparatus of claim 22, further comprising a housing, the first speaker being located outside of the housing;

the sound generating device further comprises a second loudspeaker, the second loudspeaker is a bass loudspeaker, the second loudspeaker is arranged in the shell, and sound generating holes are formed in the position, corresponding to the second loudspeaker, of the shell.

24. The sound generating apparatus of claim 23, wherein the housing is defined to have an up-down direction, the first speaker is disposed on an upper surface of the housing, an axis of the first speaker is parallel to the up-down direction, and an axis of the second speaker is perpendicular to the up-down direction;

the first speaker and the second speaker are located on a center line of the housing in the up-down direction on a projection plane perpendicular to an axis of the second speaker.