CN212519419U

CN212519419U - Loudspeaker

Info

Publication number: CN212519419U
Application number: CN202021273982.9U
Authority: CN
Inventors: 严绪东; 邵涛; 顾小江
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-02-09
Anticipated expiration: 2030-07-02
Also published as: WO2022000577A1

Abstract

The utility model provides a loudspeaker, comprising a frame, a magnetic circuit system and a vibration system, wherein the magnetic circuit system and the vibration system are fixed on the frame, the frame comprises a bottom plate and a side plate, the vibration system comprises a vibration film component, a ball top supported on the vibration film component and a voice coil fixed on one side of the ball top close to the magnetic circuit system, one end of the vibration film component is fixedly connected with one end of the side plate far away from the bottom plate, the other end of the vibration film component is fixedly connected with the ball top, the vibration film component comprises a first vibration film and a second vibration film which are both annular, the first vibration film and the second vibration film are overlapped along the vibration direction, the first vibration film comprises a first mounting part fixedly connected with the ball top and a first connecting part far away from the ball top, the second vibration film comprises a second mounting part fixedly connected with the side plate and a second connecting part far away from the side plate, the first connecting part is fixedly connected with the second connecting part, the vibration film component of the loudspeaker adopts the, the molding difficulty of the vibrating diaphragm component is reduced.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to a sound production device technical field especially relates to a loudspeaker.

[ background of the invention ]

A sound-emitting device of the related art includes a vibration system and a magnetic circuit system. Vibration system all includes the vibrating diaphragm usually, and the vibrating diaphragm often adopts materials integrated into one piece such as rubber, silica gel, but the vibrating diaphragm setting is in the speaker of week side, and its vibrating diaphragm adopts integrated into one piece's manufacturing approach to be not suitable for rubber class material, uses rubber class material to be difficult to the shaping.

Therefore, there is a need for a new speaker.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker, it can the vibrating diaphragm subassembly reach increase radiating area and increase the basis of the purpose of loudspeaker loudness, has reduced the shaping degree of difficulty of vibrating diaphragm subassembly.

The technical scheme of the utility model as follows:

a loudspeaker comprises a frame, a magnetic circuit system and a vibration system, wherein the magnetic circuit system and the vibration system are fixed on the frame, the frame comprises a bottom plate and a side plate which is bent and extended from the edge of the bottom plate, the vibration system comprises a vibrating diaphragm component for vibrating and sounding, a ball top supported on the vibrating diaphragm component and a voice coil fixed on one side of the ball top and close to one side of the magnetic circuit system, one end of the vibrating diaphragm component is fixedly connected with one end of the side plate, which is far away from the bottom plate, the other end of the vibrating diaphragm component is fixedly connected with the ball top, the vibrating diaphragm component and the frame are jointly surrounded to form a containing cavity, the voice coil and the magnetic circuit system are contained in the containing cavity, the vibrating diaphragm component comprises a first vibrating diaphragm and a second vibrating diaphragm which are both annular, and the first vibrating diaphragm and the second vibrating diaphragm are overlapped along the vibration direction, first vibrating diaphragm include with ball top fixed connection's first installation department and keep away from the first connecting portion of ball top, the second vibrating diaphragm include with curb plate fixed connection's second installation department and keep away from the second connecting portion of curb plate, first connecting portion with second connecting portion fixed connection.

As a modification, the first connecting portion and the second connecting portion are bonded by glue.

As an improvement, the first diaphragm further includes a first arc portion connected to the first mounting portion and the first connection portion, and the first arc portion is recessed toward the voice coil direction.

As a refinement, the first connecting portion extends horizontally from one end of the first arc portion away from the first mounting portion toward the voice coil.

As an improvement, the second diaphragm further includes a second arc portion connecting the second mounting portion and the second connecting portion, and the second arc portion is recessed toward the voice coil direction.

As a refinement, the second connecting portion extends horizontally from an end of the second arc portion away from the second mounting portion toward the voice coil.

As an improved mode, the vibration system further comprises an auxiliary vibration diaphragm component supported on the basin frame, the auxiliary vibration diaphragm component is arranged in the accommodating cavity and connected with the ball top, and the magnetic circuit system drives the voice coil to drive the vibration diaphragm component and the auxiliary vibration diaphragm component to vibrate through the ball top.

As an improvement mode, the basin frame still includes certainly the bottom plate orientation the bearing structure that the ball top extends, bearing structure include first supporting part and with the second supporting part that first supporting part interval set up, supplementary vibrating diaphragm subassembly includes the third vibrating diaphragm and connects the third vibrating diaphragm with the connecting piece of ball top, the third vibrating diaphragm include with the fixed first fixed part of connecting piece, by the ring portion that rolls over that the periphery of first fixed part is buckled and is extended and by the ring portion periphery is buckled and is extended the second fixed part, the second fixed part span on first supporting part and the second supporting part.

As an improved mode, the magnetic circuit system comprises a magnetic circuit unit, the magnetic circuit unit comprises a magnetic bowl fixed on the bottom plate, magnetic steel located in the magnetic bowl to form a magnetic gap with the magnetic bowl, and a pole core located on the magnetic steel, and the voice coil is sleeved on the periphery of the magnetic steel and located between the magnetic bowl and the magnetic steel.

As an improved mode, the voice coils are provided with two voice coils which are arranged at intervals, the magnetic circuit units are arranged at intervals in two groups, each magnetic circuit unit is arranged corresponding to one voice coil, the auxiliary vibrating diaphragm assemblies are arranged in two groups, each auxiliary vibrating diaphragm assembly is arranged between each magnetic circuit unit and the side plate, the supporting structure is provided with two groups, and the two groups of auxiliary vibrating diaphragm assemblies are correspondingly supported on the two groups of supporting structures one by one.

As an improvement, the bottom plate is provided with a first through hole communicated with the accommodating cavity, the first through hole is arranged corresponding to the third vibrating diaphragm, the first through hole is arranged between the first supporting part and the second supporting part, and the bottom plate is further provided with a second through hole communicated with the accommodating cavity corresponding to the top of the ball.

The beneficial effects of the utility model reside in that: the utility model discloses a vibrating diaphragm subassembly adopts first vibrating diaphragm and the second vibrating diaphragm of components of a whole that can function independently shaping reassembly to replace original integral type vibrating diaphragm, designs like this, and the vibrating diaphragm subassembly has reduced the shaping degree of difficulty of vibrating diaphragm subassembly on the basis of reaching the purpose that increases the radiating area and increase loudspeaker loudness, and first vibrating diaphragm and the shaping of second vibrating diaphragm components of a whole that can function independently, and the material of formable kind is more (for example can adopt materials such as rubber, silica gel), and the volume production nature is higher.

[ description of the drawings ]

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

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 4 is an exploded view of the speaker of the present invention;

FIG. 5 is a schematic structural view of the basin stand assembly of the present invention;

fig. 6 is a schematic structural diagram of the first diaphragm of the present invention;

fig. 7 is a schematic structural diagram of a second diaphragm according to the present invention;

fig. 8 is an exploded view of the auxiliary diaphragm assembly of the present invention.

Reference numerals:

1. a speaker;

10. a basin stand; 11. a base plate; 111. a first through hole; 112. a second through hole; 12. a side plate; 13. a support structure; 131. a first support section; 132. a second support portion;

20. a magnetic circuit system; 21. a magnetic circuit unit; 211. a magnetic bowl; 212. magnetic steel; 213. a pole piece;

30. a vibration system; 31. a diaphragm assembly; 311. a first diaphragm; 3111. a first mounting portion; 3112. a first connection portion; 3113. a first arcuate portion; 312. a second diaphragm; 3121. a second mounting portion; 3122. a second connecting portion; 3123. a second arcuate portion; 32. a ball top; 33. an auxiliary diaphragm assembly; 331. a third diaphragm; 3311. a first fixed part; 3312. a folded ring part; 3313. a second fixed part; 332. a connecting member; 34. a voice coil.

40. An accommodating cavity.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1 to 8, an embodiment of the present invention provides a speaker 1, which includes a frame 10, a magnetic circuit 20 and a vibration system 30 fixed on the frame 10, the frame 10 includes a bottom plate 11 and a side plate 12 extending from an edge of the bottom plate 11 to the vibration system 30, the vibration system 30 includes a diaphragm assembly 31 for generating sound by vibration, a dome 32 supported on the diaphragm assembly 31, and a voice coil 34 fixed on one side of the dome 32 close to the magnetic circuit 20, the diaphragm assembly 31 is ring-shaped, one end of the diaphragm assembly 31 and one end of the side plate 12 far from the bottom plate 11 are fixedly connected, the other end of the diaphragm assembly 31 is fixedly connected with the dome 32, the diaphragm assembly 31 and the frame 10 jointly enclose to form an accommodating cavity 40, the voice coil 34 and the magnetic circuit 20 are accommodated in the accommodating cavity 40, the diaphragm assembly 31 includes a first diaphragm 311 and a second diaphragm 312, the first diaphragm 311 and the second diaphragm 312 are stacked along the vibration direction, the first diaphragm 311 includes a first mounting portion 3111 fixedly connected to the dome 32 and a first connection portion 3112 far away from the dome 32, the second diaphragm 312 includes a second mounting portion 3121 fixedly connected to the side plate 12 and a second connection portion 3122 far away from the side plate 12, and the first connection portion 3112 is fixedly connected to the second connection portion 3122. When the voice coil 34 is energized with an alternating current, under the action of the magnetic field of the magnetic circuit system 20, the voice coil 34 can be driven by an alternating driving force to move up and down, so as to generate an alternating motion, and the first diaphragm 311 and the second diaphragm 312 vibrate in the direction of the driving force under the action of the driving force, so as to generate sound, wherein the first diaphragm 311 and the second diaphragm 312 participate in vibration together during vibration.

The vibrating diaphragm subassembly 31 of this embodiment has replaced original integral type vibrating diaphragm with second vibrating diaphragm 312 by the first vibrating diaphragm 311 of components of a whole that can function independently shaping reassembly, and design like this, vibrating diaphragm subassembly 31 has reduced the shaping degree of difficulty of vibrating diaphragm subassembly 31 on the basis of reaching the purpose that increases radiation area and increase loudspeaker loudness, and first vibrating diaphragm 311 and second vibrating diaphragm 312 components of a whole that can function independently shaping, and the material kind that can shape is more (for example can adopt materials such as rubber, silica gel), and the volume production nature is higher.

Moreover, the loudspeaker 1 of the embodiment improves the connection reliability between the dome 32 and the first diaphragm 311 by designing the first mounting portion 3111, and at the same time, the dome 32 can better transmit the force for driving the first diaphragm 311 to vibrate to the first diaphragm 311; the loudspeaker 1 of the present embodiment improves the connection reliability between the first diaphragm 311 and the second diaphragm 312 by designing the first connection portion 3112 and the second connection portion 3122, and at the same time, the first diaphragm 311 can better transmit the force for driving the second diaphragm 312 to vibrate to the second diaphragm 312; the loudspeaker 1 of the present embodiment improves the reliability of connection of the second diaphragm 312 to the frame 10 by designing the second mounting portion 3121.

Optionally, the first connecting portion 3112 and the second connecting portion 3122 are bonded by glue, and the connection manner is simple and reliable.

Referring to fig. 1 to 4 and fig. 6, the first diaphragm 311 further includes a first arc-shaped portion 3113 connecting the first mounting portion 3111 and the first connecting portion 3112, the first arc-shaped portion 3113 is recessed toward the voice coil 34, so as to increase an effective radiation area of the first diaphragm 311, and the first arc-shaped portion 3113 may be designed in a quarter-arc shape.

The first connection portion 3112 extends horizontally from one end of the first arc-shaped portion 3113 away from the first mounting portion 3111 toward the voice coil 34, and can be better fixed to the second connection portion 3122.

Preferably, in order to reduce the assembly process, the first mounting portion 3111, the first arc-shaped portion 3113 and the first connection portion 3112 are integrally formed.

Referring to fig. 1 to 4 and fig. 7, the second diaphragm 312 further includes a second arc portion 3123 connecting the second mounting portion 3121 and the second connecting portion 3122, the second arc portion 3123 is recessed toward the voice coil 34, so as to increase an effective radiation area of the second diaphragm 312, the second arc portion 3123 may be designed to have a quarter arc shape corresponding to the first arc portion 3113, and thus, the first diaphragm 311 and the second diaphragm 312 are integrally formed in a half arc shape after being assembled.

The second connection portion 3122 extends horizontally from one end of the second arc portion 3123 away from the second mounting portion 3121 toward the voice coil 34, and can be better fixed with the first connection portion 3112.

Preferably, in order to reduce the assembly process, the second mounting portion 3121, the second arc portion 3123, and the second connecting portion 3122 are integrally formed.

Referring to fig. 1-5 and 8, the vibration system 30 further includes an auxiliary diaphragm assembly 33 supported on the frame 10, the auxiliary diaphragm assembly 33 is disposed in the accommodating cavity 40, the auxiliary diaphragm assembly 33 is connected to the dome 32, and the magnetic circuit system 20 drives the voice coil 34 to drive the diaphragm assembly 31 and the auxiliary diaphragm assembly 33 to vibrate through the dome 32, so that the diaphragm assembly 31 and the auxiliary diaphragm assembly 33 form a linkage vibration structure, and the vibration effect is better.

The frame 10 further includes a supporting structure 13 extending from the bottom plate 11 toward the dome 32, the supporting structure 13 includes a first supporting portion 131 and a second supporting portion 132 spaced apart from the first supporting portion 131, the auxiliary diaphragm assembly 33 includes a third diaphragm 331 and a connecting member 332 connecting the third diaphragm 331 and the dome 32, the third diaphragm 331 includes a first fixing portion 3311 fixed to the connecting member 332, a ring-folded portion 3312 bent and extending from a periphery of the first fixing portion 3311, and a second fixing portion 3313 bent and extending from a periphery of the ring-folded portion 3312, the second fixing portion 3313 spans over the first supporting portion 131 and the second supporting portion 132, and the supporting structure 13 is designed such that the supporting structure 13 does not affect the third diaphragm 331 and can provide a supporting force for the third diaphragm 331.

Referring to fig. 1-5, the magnetic circuit system 20 includes a magnetic circuit unit 21, the magnetic circuit unit 21 includes a magnetic bowl 211 fixed on the bottom plate 11, a magnetic steel 212 located in the magnetic bowl 211 to form a magnetic gap with the magnetic bowl 211, and a pole core 213 located on the magnetic steel 212, the voice coil 34 is configured in a ring shape, the voice coil 34 is sleeved on the peripheries of the magnetic steel 212 and the pole core 213, and is located between the magnetic bowl 211 and the magnetic steel 212, when the voice coil 34 is energized with an alternating current, under the action of the magnetic field of the magnetic circuit system 20, the voice coil 34 can be driven by an alternating driving force to move up and down to generate an alternating motion, and the dome 32 is driven by the ball top 32 to drive the diaphragm assembly 31 and the auxiliary diaphragm assembly 33 to.

Further, two magnetic circuit units 21 are arranged at intervals, two sets of auxiliary diaphragm assemblies 33 are also arranged, that is, the magnetic circuit system 20 includes two third diaphragms 331 and two connecting pieces 332, the two sets of auxiliary diaphragm assemblies 33 are respectively arranged on two sides of the magnetic circuit system 20, the supporting structure 13 is provided with two sets, and the two sets of auxiliary diaphragm assemblies 33 are supported on the two sets of supporting structures 13 in a one-to-one correspondence manner. The loudspeaker 1 of this embodiment produces the power that drives vibrating diaphragm subassembly 31 and supplementary vibrating diaphragm subassembly 33 vibration through setting up two magnetic circuit unit 21, can increase the vibration range of vibrating diaphragm subassembly 31 and supplementary vibrating diaphragm subassembly 33, and then increase loudspeaker loudness, and loudspeaker 1 of this embodiment can further increase loudspeaker loudness through setting up two sets of supplementary vibrating diaphragm subassemblies 33, makes the vibration effect that supplementary vibrating diaphragm subassembly 33 brought for dome 32 more even simultaneously, is favorable to improving loudspeaker 1's acoustic performance.

It is understood that the number of the magnetic circuit units 21 is not limited to two, and may be three or more, and the specific number is set according to actual requirements. Likewise, the number of the auxiliary diaphragm assemblies 33 is not limited to two, and may also be three, or more, and the specific number is set according to actual requirements; correspondingly, the number of support structures 13 varies with the number of auxiliary diaphragm assemblies 33.

Referring to fig. 1 to 5, the bottom plate 11 is provided with two first through holes 111 communicating with the receiving cavity 40, one first through hole 111 is disposed corresponding to one third diaphragm 331, the first through hole 111 is disposed between the first supporting portion 131 and the second supporting portion 132, and the bottom plate 11 is further provided with a second through hole 112 communicating with the receiving cavity 40 corresponding to the dome 32.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The utility model provides a loudspeaker, includes the basin frame and is fixed in the magnetic circuit and the vibration system of basin frame, the basin frame include the bottom plate and certainly the bottom plate edge to the curb plate that the vibration system is buckled and is extended, the vibration system including be used for vibrating the vibrating diaphragm subassembly of sound production, support in the ball top of vibrating diaphragm subassembly and be fixed in the ball top is close to the voice coil loudspeaker voice coil of magnetic circuit one side, the one end of vibrating diaphragm subassembly with keeping away from of curb plate the one end fixed connection of bottom plate, the other end of vibrating diaphragm subassembly with ball top fixed connection, the ball top the vibrating diaphragm subassembly and the basin frame encloses jointly to establish to form and accepts the chamber, the voice coil loudspeaker voice coil and magnetic circuit accept in accept the intracavity, its characterized in that: the vibrating diaphragm subassembly is including all being annular first vibrating diaphragm and second vibrating diaphragm, first vibrating diaphragm with the second vibrating diaphragm is folded along the direction of vibration and is established, first vibrating diaphragm include with ball top fixed connection's first installation department and keep away from the first connecting portion of ball top, the second vibrating diaphragm include with curb plate fixed connection's second installation department and keep away from the second connecting portion of curb plate, first connecting portion with second connecting portion fixed connection.

2. The loudspeaker of claim 1, wherein the first and second connection portions are bonded by glue.

3. The loudspeaker of claim 1, wherein the first diaphragm further comprises a first arc portion connecting the first mounting portion and the first connection portion, the first arc portion being concave toward the voice coil.

4. The speaker of claim 3, wherein the first connection portion extends horizontally from an end of the first arc portion remote from the first mounting portion toward the voice coil.

5. The speaker of claim 1, wherein the second diaphragm further includes a second arc portion connecting the second mounting portion and the second connecting portion, the second arc portion being concave toward the voice coil.

6. The speaker of claim 5, wherein the second connecting portion extends horizontally from an end of the second arc portion away from the second mounting portion toward the voice coil.

7. The loudspeaker of claim 1, wherein the vibration system further comprises an auxiliary diaphragm assembly supported by the frame, the auxiliary diaphragm assembly is disposed in the accommodating cavity and connected to the dome, and the magnetic circuit drives the voice coil to drive the diaphragm assembly and the auxiliary diaphragm assembly to vibrate through the dome.

8. The loudspeaker of claim 7, wherein the frame further comprises a support structure extending from the bottom plate toward the dome, the support structure comprises a first support portion and a second support portion spaced from the first support portion, the auxiliary diaphragm assembly comprises a third diaphragm and a connecting member connecting the third diaphragm and the dome, the third diaphragm comprises a first fixing portion fixed to the connecting member, a folded ring portion extending by bending a periphery of the first fixing portion, and a second fixing portion extending by bending a periphery of the folded ring portion, and the second fixing portion spans over the first support portion and the second support portion.

9. The loudspeaker of claim 8, wherein the magnetic circuit system comprises a magnetic circuit unit, the magnetic circuit unit comprises a magnetic bowl fixed on the bottom plate, a magnetic steel located in the magnetic bowl to form a magnetic gap with the magnetic bowl, and a pole core located on the magnetic steel, and the voice coil is sleeved on the periphery of the magnetic steel and located between the magnetic bowl and the magnetic steel.

10. The speaker of claim 9, wherein two voice coils are provided and two voice coils are provided spaced apart from each other, two sets of magnetic circuit units are provided spaced apart from each other, one magnetic circuit unit is provided corresponding to one voice coil, two sets of auxiliary diaphragm assemblies are provided, one auxiliary diaphragm assembly is provided between the magnetic circuit unit and the side plate, two sets of support structures are provided, and two sets of auxiliary diaphragm assemblies are supported on two sets of support structures in a one-to-one correspondence.

11. The speaker as claimed in claim 10, wherein the bottom plate has a first through hole communicating with the receiving cavity, the first through hole is disposed corresponding to the third diaphragm, the first through hole is disposed between the first supporting portion and the second supporting portion, and the bottom plate further has a second through hole communicating with the receiving cavity corresponding to the dome.