CN117560608B

CN117560608B - Speaker and speaker box

Info

Publication number: CN117560608B
Application number: CN202410028672.7A
Authority: CN
Inventors: 汤赟; 宋威; 马杰; 毛路斌; 令狐荣林
Original assignee: AAC Microtech Changzhou Co Ltd
Current assignee: AAC Microtech Changzhou Co Ltd
Priority date: 2024-01-09
Filing date: 2024-01-09
Publication date: 2024-04-09
Anticipated expiration: 2044-01-09
Also published as: CN117560608A

Abstract

The utility model provides a speaker, includes the basin frame, fix in vibration system and the drive of basin frame vibration's magnetic circuit, the basin frame encircle magnetic circuit, just the basin frame with magnetic circuit sets up along perpendicular to vibration direction interval of vibration system, the speaker still includes encircleing magnetic circuit sets up the buffer, the buffer will magnetic circuit connects on the basin frame in order to hang magnetic circuit, the buffer includes damping elastic component, damping elastic component has the messenger magnetic circuit can be relative the preset rigidity and the preset damping of basin frame motion. The invention also provides a loudspeaker box. According to the loudspeaker and the loudspeaker box provided by the invention, the magnetic circuit system can move relative to the basin frame through the damping elastic piece with preset rigidity and preset damping, and the damping elastic piece can restrain the movement of the magnetic circuit system, so that the purpose of damping can be achieved.

Description

Speaker and speaker box

Technical Field

The invention relates to the electroacoustic field, in particular to a loudspeaker and a loudspeaker box.

Background

With the advent of the mobile internet age, the number of intelligent mobile devices has increased. Among the many mobile devices, the mobile phone is certainly the most common and portable mobile terminal device. At present, the functions of mobile phones are very diverse, one of which is a high-quality music function, and thus, speakers for playing sound are widely used in current smart mobile devices.

The speaker in the related art includes a frame, a vibration system fixed to the frame, and a magnetic circuit system driving the vibration system to vibrate. However, such speakers are poor in vibration-proof effect. For example, such a speaker may be damaged by inertia in the event of a drop or the like being subjected to a strong impact, thereby reducing the reliability of the speaker.

It is thus necessary to study a speaker having a new structure.

Disclosure of Invention

The invention provides a novel damping loudspeaker and a loudspeaker box aiming at solving the problem of poor vibration-resistant effect of the loudspeaker.

In order to achieve the above object, the present invention provides a speaker, including a frame, a vibration system fixed to the frame, and a magnetic circuit driving the vibration system to vibrate, wherein the frame surrounds the magnetic circuit, and the frame and the magnetic circuit are arranged at intervals along a vibration direction perpendicular to the vibration system, the speaker further includes a buffer arranged around the magnetic circuit, the buffer connects the magnetic circuit to the frame to suspend the magnetic circuit, the buffer includes a damping elastic member having a preset stiffness and a preset damping enabling the magnetic circuit to move relative to the frame.

As an improvement, the damping elastic pieces are arranged at intervals along the circumferential direction of the magnetic circuit system, and the damping elastic pieces are arranged in an axisymmetric manner.

As an improvement, the damping elastic piece is in a continuous annular structure, and the damping elastic piece is arranged around the magnetic circuit system.

As an improvement, the damper further comprises a rigid member, wherein,

the rigid piece is arranged between the damping elastic piece and the magnetic circuit system and is connected with the damping elastic piece and the magnetic circuit system; or/and the combination of the two,

the damping elastic piece is arranged on one side, away from the magnetic circuit system, of the damping elastic piece, and the rigid piece is connected with the damping elastic piece and the basin frame.

As an improvement, a plurality of fixing holes are formed in the rigid piece in a penetrating manner, and the damping elastic piece comprises a buffer body fixedly arranged on the rigid piece and a filling body extending from the buffer body into the fixing holes to fill the fixing holes.

As an improvement, the magnetic circuit system comprises a magnetic bowl, the magnetic bowl comprises a magnetic conduction plate and a side plate formed by extending from the magnetic conduction plate to the direction of the vibration system, and at least the side plate is connected with the buffer in the side plate and the magnetic conduction plate.

As an improvement, the magnetic circuit system comprises a magnetic conduction plate, a main magnetic part fixedly arranged on the magnetic conduction plate and a secondary magnetic part which is arranged around the main magnetic part and forms a magnetic gap with the main magnetic part at intervals, wherein at least the secondary magnetic part in the secondary magnetic part and the magnetic conduction plate is connected with the buffer.

As an improvement, the auxiliary magnetic part comprises an auxiliary magnet fixedly arranged on the magnetic conduction plate and an auxiliary pole core fixedly arranged on one side of the auxiliary magnet away from the magnetic conduction plate, and the auxiliary magnet and the auxiliary pole core are connected with the buffer.

As an improvement, the auxiliary magnets comprise two first auxiliary magnets which are arranged at intervals along a first direction, the first auxiliary magnets are connected with the buffer, and the first direction is perpendicular to the vibration direction.

The invention also provides a loudspeaker box comprising a housing with a receiving space, the loudspeaker box further comprising a loudspeaker as described in any one of the above assembled into the housing, the basin stand being held to the housing, the housing comprising a bottom plate which is arranged in abutment or spaced relation with the magnetic circuit system in the direction of vibration of the vibration system.

As an improvement, the buffer controls the absolute value of the difference between the resonance frequency of the magnetic circuit system and the resonance frequency of the speaker box to be in a range of less than 100 Hz.

The invention also provides a loudspeaker box, which comprises a shell with a containing space and a loudspeaker assembled in the shell, wherein the shell comprises a bottom plate penetrated with a window, the loudspeaker comprises a basin frame fixedly arranged on the shell, a vibration system fixedly arranged on the basin frame and a magnetic circuit system driving the vibration system to vibrate, the magnetic circuit system is provided with a magnetic conduction plate arranged in the window, the basin frame surrounds the magnetic circuit system, the basin frame and the magnetic circuit system are arranged at intervals along the vibration direction perpendicular to the vibration system, the loudspeaker also comprises a buffer arranged around the magnetic circuit system, the buffer connects the magnetic circuit system on the basin frame so as to suspend the magnetic circuit system, wherein the basin frame is also fixedly arranged on the bottom plate, the basin frame, the buffer and the magnetic circuit system jointly seal the window, and the buffer comprises a damping elastic piece which is in a continuous annular structure and is arranged around the magnetic circuit system and provided with rigidity and preset damping capacity of enabling the magnetic circuit system to move relatively to the preset frame.

As an improvement, the damper further comprises a rigid member having a continuous loop structure, wherein,

As an improvement, the magnetic circuit system comprises a magnetic bowl, the magnetic bowl comprises a magnetic conduction plate and a side plate which is formed by extending from the magnetic conduction plate to the direction of the vibration system, and the side plate is connected with the buffer.

The invention also provides a loudspeaker box, which comprises a shell with an accommodating space and a loudspeaker assembled in the shell, wherein the shell comprises a bottom plate penetrated with a window, the loudspeaker comprises a basin frame fixedly arranged on the shell, a vibration system fixedly arranged on the basin frame and a magnetic circuit system driving the vibration system to vibrate, the magnetic circuit system is provided with a magnetic conduction plate arranged in the window, the basin frame and the bottom plate are arranged at intervals, the basin frame surrounds the magnetic circuit system, the basin frame and the magnetic circuit system are arranged at intervals along the vibration direction perpendicular to the vibration system, the loudspeaker also comprises a buffer arranged around the magnetic circuit system, the buffer connects the magnetic circuit system on the bottom plate so as to suspend the magnetic circuit system, wherein the buffer and the magnetic circuit system seal the window, and the buffer comprises a damping elastic piece which is in a continuous annular structure and is arranged around the magnetic circuit system and has preset rigidity and preset damping capacity for enabling the magnetic circuit system to move relative to the basin frame.

As an improvement, the buffer is also inserted into a gap between the magnetic conduction plate and the bottom plate, and the opposite surfaces of the bottom plate and the magnetic conduction plate are respectively connected with the buffer and sealed.

the damping elastic piece is arranged on one side, away from the magnetic circuit system, of the damping elastic piece, and the rigid piece is connected with the damping elastic piece and the bottom plate.

As an improvement, magnetic circuit includes magnetic conduction board, set firmly in main magnetic part on the magnetic conduction board and encircle main magnetic part sets up and with main magnetic part interval forms the vice magnetic part of magnetic gap, damping elastic component include with vice magnetic part is connected and be annular buffer body, from the buffer body extends the connector that forms and from the buffer body extends the turn-ups that forms outward, the edge of magnetic conduction board buries in the connector, the turn-ups is fixed in the bottom plate orientation on one side surface of accommodation space.

As an improvement, the buffer further comprises a rigid piece connected with the buffer body, and the flanging is clamped between the bottom plate and the rigid piece.

As an improvement, a plurality of fixing holes are formed in the rigid piece in a penetrating mode, and the damping elastic piece further comprises a filling body which extends from the buffer body into the fixing holes to form and fill the fixing holes.

As an improvement, the edge of the magnetic conduction plate is divided into a plurality of first embedded areas arranged at intervals and a second embedded area connected with two adjacent first embedded areas, the first embedded areas are penetrated with first reinforcing holes filled with the connecting bodies, the second embedded areas extend towards the direction of the vibration system to form reinforcing bodies, and the reinforcing bodies are penetrated with second reinforcing holes filled with the buffer bodies.

As an improvement, the buffer is arranged at a distance from the basin stand.

As an improvement, the buffer is also connected with the basin stand.

The beneficial effects of the invention are as follows: the damping elastic piece with preset rigidity and preset damping enables the magnetic circuit system to move relative to the basin frame, and the damping elastic piece inhibits the magnetic circuit system from moving, so that the purpose of damping the loudspeaker can be achieved.

Drawings

Fig. 1 is a schematic structural view of a speaker box according to a first embodiment of the present invention.

Fig. 2 is a top view of the loudspeaker enclosure of fig. 1 after the damper has been coupled to the magnetic bowl.

Fig. 3 is a schematic structural diagram of a speaker box according to a second embodiment of the present invention.

Fig. 4 is a perspective view of a damper in the loudspeaker enclosure shown in fig. 3.

Fig. 5 is an exploded perspective view of the damper shown in fig. 4.

Fig. 6 is a perspective view of a damper in a speaker box according to a third embodiment of the present invention.

Fig. 7 is a top view of a damper in a speaker box according to a fourth embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a speaker box according to a fifth embodiment of the present invention.

Fig. 9 is a schematic structural view of a speaker box according to a sixth embodiment of the present invention.

Fig. 10 is a schematic structural view of a speaker box according to a seventh embodiment of the present invention.

Fig. 11 is an exploded perspective view of a speaker in a speaker box according to an eighth embodiment of the present invention.

Fig. 12 is a perspective view of a first diaphragm of the speaker of fig. 11.

Fig. 13 is a perspective view of the skeleton in the speaker of fig. 11.

Fig. 14 is a perspective view of the speaker of fig. 11 assembled.

Fig. 15 is a cross-sectional view of the speaker of fig. 14 taken along the A-A direction.

Fig. 16 is a cross-sectional view of the speaker of fig. 14 taken along the direction B-B.

Fig. 17 is a schematic structural diagram of a speaker box according to a ninth embodiment of the present invention.

Fig. 18 is an enlarged view of a portion a of the speaker box shown in fig. 17.

Fig. 19 is a perspective view of the assembled damper and magnetic plate in section a of fig. 18.

Fig. 20 is an exploded perspective view of the assembled structure shown in fig. 19.

Detailed Description

The present invention is described in detail below with reference to fig. 1 to 20.

Referring to fig. 1 and 2 in combination, a speaker box according to a first embodiment includes a housing 20 having a receiving space 20A and a speaker 10 assembled in the housing 20.

The housing 20 includes a bottom plate 201. As shown in fig. 1, the bottom plate 201 has a complete flat plate shape.

The speaker 10 includes a frame 1 held by a housing 20, a vibration system 2 held by the frame 1, a magnetic circuit system 3 driving the vibration system 2 to vibrate, and a damper 4.

Wherein, basin frame 1 encircles magnetic circuit 3, and basin frame 1 and magnetic circuit 3 set up along perpendicular to vibration direction X interval of vibration system 2, and buffer 4 encircles magnetic circuit 3 setting, and buffer 4 connects magnetic circuit 3 on basin frame 1 in order to suspend magnetic circuit 3.

In the present embodiment, the buffer 4 controls the absolute value of the difference between the resonance frequency of the magnetic circuit 3 and the resonance frequency of the speaker box to be in the range of less than 100 Hz. The smaller the absolute value of the difference between the resonant frequency of the magnetic circuit system and the resonant frequency of the loudspeaker box is, the better the damping effect of the loudspeaker and the loudspeaker box is.

As shown in fig. 1, the vibration system 2 includes a diaphragm 21 held on the frame 1 and a voice coil 23 connected to the diaphragm 21 and driving the diaphragm 21 to vibrate.

As shown in fig. 1, the magnetic circuit 3 includes a magnetic bowl 31 and a magnetic portion 33.

The magnetic bowl 31 includes a magnetic conductive plate 311, a side plate 313 extending from the magnetic conductive plate 311 toward the vibration system 2, a magnetic portion 33 fixedly provided on the magnetic conductive plate 311, a magnetic gap 3A formed by the side plate 313 and the magnetic portion 33 at an interval, and a voice coil 23 inserted into the magnetic gap 3A, at least one of the magnetic conductive plate 311 and the side plate 313, the side plate 313 being connected to the damper 4. When the voice coil 23 is energized, the magnetic circuit system 3 drives the voice coil 23 to vibrate along the vibration direction X, and further drives the diaphragm 21 to vibrate along the vibration direction X.

The side plate 313 has a ring structure. The side plate 313 of the annular structure may be cylindrical or frame-shaped. In this regard, the shape of the side plate 313 is not particularly limited in the present invention.

The magnetic part 33 includes a magnetic steel 331 fixed on the magnetic conductive plate 311, and a pole core 333 fixed on one side of the magnetic steel 331 away from the magnetic conductive plate 311.

The pole piece 333 is made of a magnetically conductive material, so that the magnetic flux in the magnetic gap 3A can be enhanced.

In the present embodiment, the damper 4 includes only the damping elastic member 41. That is, the damping elastic member 41 alone serves as a shock absorber.

The damping elastic member 41 has a preset stiffness and a preset damping that allow the magnetic circuit 3 to move in any direction with respect to the tub 1. Wherein, the damping elastic piece 41 has preset rigidity, so that the magnetic circuit system 3 can be suspended under the connection action of the damping elastic piece 41; the damping elastic piece 41 also has preset damping, so that when the loudspeaker 10 is impacted, the magnetic circuit system 3 moves relative to the basin frame 1 due to inertia, the damping elastic piece 41 generates elastic deformation, and the deformation force generated by the damping elastic piece 41 reversely inhibits the movement of the magnetic circuit system 3, so that the purpose of damping the loudspeaker 10 can be achieved.

The damping elastic piece 41 can be made of polymer materials such as silica gel and rubber, and the damping elastic piece 41 can have different preset rigidities and preset damping through the selected material types and sizes of the damping elastic piece 41, and the damping elastic piece 41 with different preset rigidities and preset damping can be matched with different loudspeakers 10, so that different damping performances are achieved.

It should be noted that the absolute value of the difference between the resonance frequency of the magnetic circuit system 3 and the resonance frequency of the speaker box may also be controlled within a range of less than 100Hz by selecting the material type and size of the damping elastic member 41.

In the present embodiment, the damper 4 is constituted by a plurality of damper elastic members 41 arranged at intervals in the circumferential direction of the side plate 313, and the plurality of damper elastic members 41 are arranged axisymmetrically.

As shown in fig. 2, the damping elastic members 41 are provided with four rectangular distribution, and accordingly, the side plates 313 have a frame-shaped ring structure.

The housing 20 includes a bottom plate 201, and the bottom plate 201 is abutted or spaced from the magnetic conductive plate 311 of the magnetic circuit system 3 along the vibration direction X of the vibration system 2.

As shown in fig. 1, the bottom plate 201 is spaced apart from the magnetic conductive plate 311. The bottom plate 201 is in a complete flat plate shape, so that the shell 20, the basin frame 1 and the vibrating diaphragm 21 jointly enclose to form a closed rear cavity, thereby sealing the rear cavity of the loudspeaker box.

Referring to fig. 3 to 5, the speaker box of the second embodiment is different from the speaker box of the first embodiment only in that: the damper 4 further comprises a rigid member 43.

A rigid member 43 is arranged between the damping elastic member 41 and the magnetic circuit system 3, and the rigid member 43 is connected with the damping elastic member 41 and the magnetic circuit system 3. Wherein the side plate 313 of the magnetic bowl 31 is connected with the rigid member 43 to realize the connection of the rigid member 43 and the magnetic circuit system 3.

The side plate 313 and the rigid member 43 may be fixedly connected by gluing or by welding.

The side of the damping elastic piece 41, which is away from the magnetic circuit system 3, is provided with a rigid piece 43, and the rigid piece 43 is connected with the damping elastic piece 41 and the basin frame 1.

The rigid member 43 and the basin frame 1 may be fixedly connected by gluing or welding.

In the present embodiment, the rigid member 43 is provided with a plurality of fixing holes 431, and the damping elastic member 41 includes a buffer body 411 fixed on the rigid member 43 and a filling body 413 extending from the buffer body 411 into the fixing holes 431 to fill the fixing holes 431.

Further preferably, the fixing hole 431 is tapered, and in the direction from the rigid member 43 to the buffer body 411, the diameter of the end of the fixing hole 431 near the buffer body 411 is smaller than the diameter of the end thereof far from the buffer body 411.

The damper 4 thus provided can be manufactured by an integral molding process, and the strength of the connection of the rigid member 43 and the damper elastic member 41 can also be improved.

In other embodiments, the rigid member 43 may be disposed between the damping elastic member 41 and the magnetic circuit system 3, or the rigid member 43 may be disposed on the side of the damping elastic member 41 away from the magnetic circuit system 3; the rigid element may also be provided without fixing holes, and accordingly the damping elastic element does not include a filler, that is, the surfaces of the rigid element and the damping elastic element facing each other are all complete planes.

Referring to fig. 6, the speaker box of the third embodiment is different from that of the first embodiment only in that: the damper 4 is constituted by a damper elastic member 41 of a continuous annular structure, and the damper elastic member 41 is provided around the magnetic circuit 3.

Referring to fig. 7, the speaker box of the fourth embodiment is different from that of the second embodiment only in that: the damping elastic member 41 and the rigid member 43 are each of a continuous annular structure.

Note that the buffer may also be configured to: only one of the damping elastic member and the rigid member has a continuous annular structure, and the other is provided with a plurality of damping elastic members and rigid members along the circumferential direction of the magnetic circuit system.

Referring to fig. 8 in combination, the speaker box of the fifth embodiment is different from the speaker boxes of the fourth and third embodiments only in that: the bottom plate 201 is provided with a window 203 in a penetrating manner, and the magnetic conductive plate 311 is arranged in the window 203 so that the magnetic conductive plate 311 is exposed. The frame 1 is fixed on the bottom plate 201, and the frame 1, the buffer 4 with continuous ring structure and the magnetic circuit system 3 seal the window 203. The arrangement can make the shell 20, the buffer 4, the basin frame 1, the magnetic bowl 31 and the vibrating diaphragm 21 jointly enclose to form a closed rear cavity, thereby realizing the sealing of the rear cavity of the loudspeaker box. Meanwhile, since the magnetic conductive plate 311 is provided in the window 203, the size of the speaker box in the vibration direction X can be reduced.

Specifically, the frame 1 and the bottom plate 201 are sealed, the damper 4 having a continuous ring structure is connected to the frame 1 and forms a seal, and the damper 4 having a continuous ring structure is connected to the side plate 313 of the magnetic circuit 3 and forms a seal, so that the frame 1, the damper 4 having a continuous ring structure, and the magnetic circuit 3 together seal the window 203.

Referring to fig. 9, the speaker box of the sixth embodiment is different from the speaker box of the fifth embodiment only in that:

the basin stand 1 is arranged at intervals with the bottom plate 201.

The damper 4 also connects the magnetic circuit 3 to the base plate 201 to suspend the magnetic circuit 3, wherein the damper 4 and the magnetic circuit 3 seal the window 203.

In the present embodiment, the damper 4 is interposed between the magnetic conductive plate 311 and the bottom plate 201, and the surfaces of the bottom plate 201 facing the magnetic conductive plate 311 are respectively connected and sealed with the damper 4, thereby realizing that the damper 4 and the magnetic circuit system 3 seal the window 203.

The arrangement can make the shell 20, the buffer 4, the basin frame 1, the magnetic bowl 31 and the vibrating diaphragm 21 jointly enclose to form a closed rear cavity, thereby realizing the sealing of the rear cavity of the loudspeaker box.

Referring to fig. 10, the speaker box of the seventh embodiment is different from the speaker box of the sixth embodiment only in that: the buffer 4 is arranged at intervals from the basin stand 1.

Referring to fig. 11 to 16, the speaker box of the eighth embodiment is different from the speaker box of the second embodiment only in that: the specific structure of the speaker 30 is different from that of the speaker 10.

The speaker 30 includes a frame 5 fixed to the housing 20, a vibration system 6 fixed to the frame 5, a magnetic circuit system 7 driving the vibration system 6 to vibrate, and a damper 8.

Wherein, basin frame 5 encircles magnetic circuit 7, and basin frame 5 and magnetic circuit 7 set up along perpendicular to vibration direction X interval of vibration system 6, and buffer 4 encircles magnetic circuit 7 setting, and buffer 4 connects magnetic circuit 7 on basin frame 5 so that magnetic circuit 7 suspension.

As shown in fig. 11, the basin stand 5 has a rectangular shape.

In the present embodiment, the buffer 8 is the buffer in the second embodiment shown in fig. 4 and 5. It will be appreciated that in other embodiments, the buffer 8 is a buffer as in the first embodiment shown in fig. 2, or a buffer as in the third embodiment shown in fig. 6, or a buffer as in the fourth embodiment shown in fig. 7.

The magnetic circuit 7 comprises a magnetic conduction plate 71, a main magnetic part 73 fixedly arranged on the magnetic conduction plate 71 and a secondary magnetic part 75 which is arranged around the main magnetic part 73 and is separated from the main magnetic part 73 to form a magnetic gap 7A, wherein at least the secondary magnetic part 75 in the secondary magnetic part 75 and the magnetic conduction plate 71 is connected with the buffer 8.

In the present embodiment, the sub-magnetic portion 75 and the magnetically permeable plate 71 are both connected to the damper 8, thereby reinforcing the connection strength of the magnetic circuit 7 to the damper 8.

In the present embodiment, the main magnetic portion 73 has a rectangular structure. The main magnetic portion 73 includes a first main magnet 731 fixed to the magnetic conductive plate 71, a main pole piece 733 fixed to a side of the first main magnet 731 away from the magnetic conductive plate 71, a second main magnet 735 fixed to a side of the main pole piece 733 away from the first main magnet 731, and a third main magnet 737 fixed to a side of the second main magnet 735 away from the main pole piece 733.

The third main magnet 737 divides the second main magnet 735 into a central region 73A for fixing the third main magnet 737 and an edge region 73B disposed around the central region 73A. The vibration system 6 is also fixed to the edge region 73B.

In other embodiments, the second main magnet 735 and the third main magnet 737 may be configured as one integrally formed magnet.

The auxiliary magnetic portion 75 includes an auxiliary magnet 751 fixed to the magnetic conductive plate 71 and an auxiliary pole core 753 fixed to a side of the auxiliary magnet 751 facing away from the magnetic conductive plate 71, and both the auxiliary magnet 751 and the auxiliary pole core 753 are connected to the damper 8.

The auxiliary pole core 753 has a ring structure, and the main pole core 733 is located in the through hole of the auxiliary pole core 753.

Wherein, the main pole piece 733 and the auxiliary pole piece 753 are both made of a magnetically conductive material, so that the magnetic flux in the magnetic gap 7A can be enhanced.

In the present embodiment, the sub-magnets 751 include two first sub-magnets 755 disposed at intervals in the first direction Y and two second sub-magnets 757 disposed at intervals in the second direction Z.

The first sub-magnet 755 is coupled to the damper 8.

The first direction Y is perpendicular to the vibration direction X.

As shown in fig. 14, 15, and 16, the first direction Y is the short axis direction of the speaker 30, and the second direction Z is the long axis direction of the speaker 30.

The first main magnet 731, the second main magnet 735, the third main magnet 737, the first sub-magnet 755, and the second sub-magnet 757 are preferably magnetic steel.

The vibration system 6 comprises a vibrating diaphragm 61 fixed on the basin frame 5, a voice coil 63 inserted into the magnetic gap 7A and driving the vibrating diaphragm 61 to vibrate, and an elastic support member 65, wherein a framework 9 is fixedly arranged on one side of the vibrating diaphragm 61, facing the magnetic circuit system 7, and the voice coil 63 and the elastic support member 65 are respectively connected with the framework 9. The voice coil 63 is electrically connected with an external circuit, and after the voice coil 63 is electrified, the voice coil 63 vibrates under the action of the magnetic field of the magnetic circuit system 7, and meanwhile, the voice coil 63 drives the vibrating diaphragm 61, the elastic support 65 and the framework 9 to vibrate together; the elastic support 65 supports the voice coil 63. As shown in fig. 11 and 16, two elastic supporting members 65 are provided, and the two elastic supporting members 65 are disposed at intervals along the second direction Z (i.e. the side of the second auxiliary magnet 757 away from the main magnetic portion 73 is provided with the elastic supporting members 65), the supporting effect of the elastic supporting members 65 can limit the swing of the voice coil 63 along the long axis direction thereof, and the pure sound effect of the speaker is improved.

The frame 9 includes a base plate 91 disposed annularly around the main magnetic portion 73, a first connection portion 93 extending from an outer peripheral edge of the base plate 91 in a direction away from the diaphragm 61, and a second connection portion 95 extending from an inner peripheral edge of the base plate 91 in a direction away from the diaphragm 61, the voice coil 63 is fixed to one end of the second connection portion 95 away from the diaphragm 61, one end of the elastic support 65 is fixed to the frame 5, and the other end is fixed to the first connection portion 93.

The diaphragm 61 includes a first diaphragm 611 and a second diaphragm 613 disposed around the first diaphragm 611 and fixed to the frame 5.

The first diaphragm 611 includes a ring portion 615, a fixing portion 616 formed by extending from the ring portion 615, and a coupling portion 617 formed by extending from the ring portion 615, wherein the coupling portion 617 is fixed on the edge region 73B and fixedly connected to the third main magnet 737 in a manner of covering the third main magnet 737, so that a coupling force between the first diaphragm 611 and the main magnet 73 can be increased. Wherein the folded ring portion 615 protrudes in a direction away from the magnetic circuit system 7.

As shown in fig. 15 and 16, the inner periphery of the second diaphragm 613 and the fixing portion 616 of the first diaphragm 611 are fixed to the substrate 91, respectively (i.e., the first diaphragm 611 and the second diaphragm 613 are connected by the substrate 91 of the frame 9). It will be appreciated that in other embodiments, the diaphragm 61 may further include a dome, and the inner periphery of the second diaphragm 613 and the fixing portion 616 of the first diaphragm 611 are respectively fixed to the dome (i.e. the first diaphragm 611 and the second diaphragm 613 are connected by the dome), and the dome is connected to the substrate.

In the present embodiment, the elastic support 65 includes a flexible circuit board 67 and an auxiliary diaphragm 69 stacked in the vibration direction of the diaphragm 61. Wherein, the flexible circuit board 67 is fixed on the basin frame 5, and the auxiliary vibrating diaphragm 69 is fixed on one side of the flexible circuit board 67 away from the basin frame 5. Wherein, voice coil 63 passes through flexible circuit board 67 and is connected with external circuit electricity, and when sound emitting device work, the signal transmission of external circuit is to voice coil 63 through flexible circuit board 67.

It is understood that the arrangement of the elastic support is not limited thereto. For example, in other embodiments, the elastic support member may be further configured such that the auxiliary diaphragm is fixed to the frame 5, and the flexible circuit board 67 is fixed to a side of the auxiliary diaphragm 69 facing away from the frame 5; alternatively, the elastic support 65 may be provided to include only a flexible circuit board.

It will be appreciated that in other embodiments, the secondary magnetic portion may be provided in the following manner:

the sub-magnets may include only two first sub-magnets spaced apart in the first direction;

the two first auxiliary magnets and the two second auxiliary magnets can also be replaced by magnets with annular structures;

when the first auxiliary magnet is provided with two or/and the second auxiliary magnet is provided with two, the auxiliary pole cores can also be arranged to be a plurality of auxiliary pole cores fixedly arranged on the auxiliary magnets in a one-to-one correspondence manner.

It is understood that in the embodiment of the "the auxiliary magnet includes two first auxiliary magnets and two second auxiliary magnets, or the two first auxiliary magnets and the two second auxiliary magnets are replaced with magnets having a ring structure", the vibration system may not be provided with the elastic support member, and accordingly, the opposite sides of the long axis direction of the magnetic circuit system may be provided with the buffer connecting the auxiliary magnetic portion and the basin frame.

Referring to fig. 17 to 20 in combination, the speaker box of the ninth embodiment differs from the speaker box of the eighth embodiment only in that:

the housing 20 includes a base 201 through which a window 203 is provided.

The magnetic conductive plate 71 is disposed in the window 203 such that the magnetic conductive plate 71 is exposed.

In the present embodiment, the damper 8 includes a damping elastic member 81 and a rigid member 83. The damping elastic member 81 includes a buffer body 811 connected to the sub-magnetic portion 75 and having a ring shape, a connecting body 813 formed by extending inward from the buffer body 811, and a flange 815 formed by extending outward from the buffer body 811, the edge of the magnetic conductive plate 71 is buried in the connecting body 813, the flange 815 is fixed to a side surface of the bottom plate 201 facing the accommodating space 20A, the rigid member 83 connects the buffer body 811 and the basin frame 5, and the flange 815 is sandwiched between the bottom plate 201 and the rigid member 83. This allows the buffer 8 to connect the basin frame 5 and the magnetic circuit 7 and connect the bottom plate 201 and the magnetic conductive plate 71 together, thereby achieving sealing and damping effects.

In this embodiment, the rigid member 83 is provided with a fixing hole 831 therethrough, and the damping elastic member 81 further includes a filling body 817 extending from the buffer body 811 into the fixing hole 831 and filling the fixing hole 831.

As shown in fig. 20, the broken line B divides the edge of the magnetic conductive plate 71 into a plurality of first buried regions 711 provided at intervals and a second buried region 713 connecting the adjacent two first buried regions 711, the first buried region 711 is provided with a first reinforcing hole 715 filled with a connecting body 813, the second buried region 713 extends in the direction of the vibration system 6 to form a reinforcing body 716, and the reinforcing body 716 is provided with a second reinforcing hole 717 filled with a buffer body 811.

It will be appreciated that in other embodiments the buffer may also comprise only damping springs, and accordingly the cuff may be arranged to be clamped between the base plate and the basin stand; the rigid piece can also be in a continuous annular structure and is arranged around the buffer body; the auxiliary magnetic part and the buffer body can be indirectly connected through a rigid piece; the buffer 4 may be provided at a distance from the tub 1.

In other embodiments, the magnetic circuit system in the fifth embodiment may also include a magnetic conductive plate, a main magnetic portion fixed on the magnetic conductive plate, and an auxiliary magnetic portion spaced from the main magnetic portion to form a magnetic gap, where the auxiliary magnetic portion is connected to the buffer, and accordingly, in order to ensure that the basin stand, the buffer with a continuous ring structure, and the magnetic circuit system seal the window together, at least the auxiliary magnetic steel in the auxiliary magnetic portion has a continuous ring structure, so that the auxiliary magnetic portion and the buffer are connected to form a seal.

It should be noted that, in other embodiments, the magnetic circuit system and the vibration system in the sixth and seventh embodiments may be replaced by the magnetic circuit system and the vibration system in the eighth embodiment.

While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.

Claims

1. The utility model provides a speaker box, its includes the shell that has accommodation space and assembles to the speaker in the shell, the speaker include hold in the basin frame of shell, hold in the vibration system of basin frame and drive vibration system vibration's magnetic circuit, the shell includes the bottom plate, the bottom plate along vibration system's vibration direction with magnetic circuit butt or interval set up, its characterized in that: the basin frame surrounds magnetic circuit, just the basin frame with magnetic circuit sets up along the perpendicular to vibration direction interval of vibration system, the speaker still includes encircleing magnetic circuit sets up the buffer, the buffer will magnetic circuit is connected on the basin frame in order to hang magnetic circuit, the buffer includes damping elastic component, damping elastic component has the messenger magnetic circuit can be relative the preset rigidity and the preset damping of basin frame motion, wherein, the buffer will magnetic circuit's resonant frequency with the absolute value control of the difference of the resonant frequency of speaker box is less than 100 Hz's scope.

2. A loudspeaker enclosure according to claim 1, wherein: the damping elastic pieces are arranged at intervals along the circumferential direction of the magnetic circuit system, and the damping elastic pieces are arranged in an axisymmetric mode.

3. A loudspeaker enclosure according to claim 1, wherein: the damping elastic piece is of a continuous annular structure, and the damping elastic piece is arranged around the magnetic circuit system.

4. A loudspeaker enclosure according to claim 2 or 3, wherein: the damper further comprises a rigid member, wherein,

5. The loudspeaker enclosure of claim 4, wherein: the damping elastic piece comprises a buffer body fixedly arranged on the rigid piece and a filling body extending from the buffer body into the fixing hole to form and fill the fixing hole.

6. A loudspeaker enclosure according to claim 1, wherein: the magnetic circuit system comprises a magnetic bowl, the magnetic bowl comprises a magnetic conduction plate and a side plate which is formed by extending the magnetic conduction plate towards the direction of the vibration system, and at least the side plate is connected with the buffer in the side plate and the magnetic conduction plate.

7. A loudspeaker enclosure according to claim 1, wherein: the magnetic circuit system comprises a magnetic conduction plate, a main magnetic part fixedly arranged on the magnetic conduction plate and an auxiliary magnetic part which surrounds the main magnetic part and forms a magnetic gap with the main magnetic part at intervals, wherein at least the auxiliary magnetic part in the auxiliary magnetic part and the magnetic conduction plate is connected with the buffer.

8. The loudspeaker enclosure of claim 7, wherein: the auxiliary magnetic part comprises an auxiliary magnet fixedly arranged on the magnetic conduction plate and an auxiliary pole core fixedly arranged on one side of the auxiliary magnet, which is away from the magnetic conduction plate, and the auxiliary magnet and the auxiliary pole core are connected with the buffer.

9. The loudspeaker enclosure of claim 8, wherein: the auxiliary magnets comprise two first auxiliary magnets which are arranged at intervals along a first direction, the first auxiliary magnets are connected with the buffer, and the first direction is perpendicular to the vibration direction.

10. A loudspeaker box, it includes having housing space's shell and equipment to the speaker in the shell, the shell is including running through the bottom plate that is equipped with the window, the speaker include hold in the basin frame of shell, hold in the vibration system of basin frame and drive vibration system's vibration magnetic circuit, magnetic circuit has locates the magnetic conduction board in the window, its characterized in that: the basin frame surrounds magnetic circuit, just the basin frame with magnetic circuit sets up along the perpendicular to vibration direction interval of vibration system, the speaker still includes encircleing magnetic circuit sets up the buffer, the buffer will magnetic circuit connects on the basin frame in order will magnetic circuit suspension, wherein, the basin frame still is fixed in the bottom plate, just the basin frame the buffer reaches magnetic circuit will jointly the window seals, the buffer is including being continuous ring structure and encircleing the damping elastic component that magnetic circuit set up, the damping elastic component has the messenger magnetic circuit can be relative the preset rigidity and the preset damping of basin frame motion, wherein, the buffer will magnetic circuit's resonant frequency with the absolute value control of the difference of the resonant frequency of speaker box is less than 100 Hz's scope.

11. A loudspeaker enclosure according to claim 10, wherein: the damper further comprises a rigid member in a continuous loop configuration, wherein,

12. A loudspeaker enclosure according to claim 11, wherein: the damping elastic piece comprises a buffer body fixedly arranged on the rigid piece and a filling body extending from the buffer body into the fixing hole to form and fill the fixing hole.

13. Loudspeaker enclosure according to any of claims 10-12, wherein: the magnetic circuit system comprises a magnetic bowl, the magnetic bowl comprises a magnetic conduction plate and a side plate which is formed by extending the magnetic conduction plate towards the direction of the vibration system, and the side plate is connected with the buffer.

14. A loudspeaker box, it includes having housing space's shell and equipment to the speaker in the shell, the shell is including running through the bottom plate that is equipped with the window, the speaker include hold in the basin frame of shell, hold in the vibration system of basin frame and drive vibration system's vibration magnetic circuit, magnetic circuit has locates the magnetic conduction board in the window, its characterized in that: the basin frame with the bottom plate interval sets up, the basin frame encircles magnetic circuit, just the basin frame with magnetic circuit sets up along the perpendicular to the vibration direction interval of vibration system, the speaker still includes the buffering ware that encircles magnetic circuit sets up, the buffering ware will magnetic circuit connects on the bottom plate with magnetic circuit suspension, wherein, the buffering ware with magnetic circuit will the window is sealed, the buffering ware is including being continuous annular structure and encircling the damping elastic component that magnetic circuit set up, damping elastic component has the messenger magnetic circuit can be relative the preset rigidity and the preset damping of basin frame motion, wherein, the buffering ware will magnetic circuit's resonant frequency with the absolute value control of the difference of the resonant frequency of speaker box is less than 100 Hz's scope.

15. A loudspeaker enclosure according to claim 14, wherein: the buffer is also inserted into a gap between the magnetic conduction plate and the bottom plate, and the opposite surfaces of the bottom plate and the magnetic conduction plate are respectively connected with the buffer and sealed.

16. A loudspeaker enclosure according to claim 15 wherein: the damper further comprises a rigid member in a continuous loop configuration, wherein,

17. A loudspeaker enclosure according to claim 16, wherein: the damping elastic piece comprises a buffer body fixedly arranged on the rigid piece and a filling body extending from the buffer body into the fixing hole to form and fill the fixing hole.

18. A loudspeaker enclosure according to any one of claims 15-17, wherein: the magnetic circuit system comprises a magnetic bowl, the magnetic bowl comprises a magnetic conduction plate and a side plate which is formed by extending the magnetic conduction plate towards the direction of the vibration system, and the side plate is connected with the buffer.

19. A loudspeaker enclosure according to claim 14, wherein: the magnetic circuit system comprises a magnetic conduction plate, a main magnetic part fixedly arranged on the magnetic conduction plate and an auxiliary magnetic part encircling the main magnetic part and forming a magnetic gap with the main magnetic part at intervals, wherein the damping elastic piece comprises a buffer body connected with the auxiliary magnetic part and in a ring shape, a connecting body formed by extending inwards from the buffer body and a flanging formed by extending outwards from the buffer body, the edge of the magnetic conduction plate is buried in the connecting body, and the flanging is fixed on one side surface of the bottom plate facing the accommodating space.

20. A loudspeaker enclosure according to claim 19 wherein: the buffer also comprises a rigid piece connected with the buffer body, and the flanging is clamped between the bottom plate and the rigid piece.

21. A loudspeaker enclosure according to claim 20 wherein: the damping elastic piece further comprises a filling body which extends from the buffer body into the fixing holes to form and fill the fixing holes.

22. A loudspeaker enclosure according to claim 19 wherein: the edge of the magnetic conduction plate is divided into a plurality of first embedded areas arranged at intervals and a second embedded area connected with two adjacent first embedded areas, the first embedded areas are penetrated with first reinforcing holes filled with the connecting bodies, the second embedded areas extend towards the direction of the vibration system to form reinforcing bodies, and the reinforcing bodies are penetrated with second reinforcing holes filled with the buffer bodies.

23. A loudspeaker enclosure according to claim 14, wherein: the buffer is arranged at intervals with the basin stand.

24. A loudspeaker enclosure according to claim 14, wherein: the buffer is also connected with the basin stand.