WO2022006962A1

WO2022006962A1 - Loudspeaker

Info

Publication number: WO2022006962A1
Application number: PCT/CN2020/102426
Authority: WO
Inventors: 邵涛; 严绪东; 顾小江
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-07-06
Filing date: 2020-07-16
Publication date: 2022-01-13
Also published as: CN213462306U

Abstract

Disclosed is a loudspeaker. The loudspeaker comprises a frame with an accommodating space in the middle, a vibration system that is arranged in the accommodating space and supported by the frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound. The magnetic circuit system is fixed to the frame and comprises a magnetic bowl component and a magnetic steel unit arranged in the magnetic bowl component, wherein a magnetic gap is formed between the magnetic bowl component and the magnetic steel unit, and a fixing part is arranged on the magnetic bowl component. The vibration system comprises a vibrating diaphragm component, a voice coil that surrounds the periphery of the magnetic steel unit and is arranged in the magnetic gap, and a framework component fixedly connected to the voice coil, wherein the framework component is connected to the vibrating diaphragm component; and the vibrating diaphragm component comprises a first voice diaphragm, with an inner ring portion of the first voice diaphragm being bonded to the fixing part. The present utility model solves the problems of a loudspeaker in the prior art, such as the complex structure and high manufacturing costs.

Description

speaker

technical field

The utility model relates to the field of loudspeaker accessories, in particular to a loudspeaker.

Background technique

The speaker vibrates under the action of a magnetic field through an electrified voice coil, which drives the sound membrane to vibrate to drive the air to vibrate to produce sound. Existing loudspeakers generally include a cone frame and a vibration system and a magnetic circuit system bonded within the cone frame. In the prior art loudspeaker, in order to make the mid-range membrane of the vibration system can be glued and fixed, an annular step is designed in the center of the basin frame, and the mid-range membrane is bonded by using the annular step surface as the gluing surface of the mid-range membrane. On the gluing surface; at the same time, a gasket is added on the mid-range membrane and the step surface to prevent the mid-range membrane from lifting, but this leads to a more complicated structure in the basin frame.

technical problem

Due to the complicated structure of the pot frame in the existing structure, in order to maintain the strength of the pot frame, the prior art generally adopts the method of die-casting aluminum to form the pot frame, but the cost of this process is relatively high.

technical solutions

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a loudspeaker, by improving the structure of the basin frame, the magnetic circuit system and the vibration system, thereby improving the connection between the basin frame and the magnetic circuit system and the vibration system in the loudspeaker, It can solve the problems of complex structure and high manufacturing cost of the basin frame in the prior art.

The purpose of this utility model adopts following technical scheme to realize:

A loudspeaker, the loudspeaker comprises a basin frame with an accommodating space in the middle, a vibration system arranged in the accommodation space and supported by the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound; The magnetic circuit system is fixed on the basin frame, and includes a magnetic bowl assembly and a magnetic steel unit arranged in the magnetic bowl assembly, a magnetic gap is formed between the magnetic bowl assembly and the magnetic steel unit, and a fixed part is arranged on the magnetic bowl assembly The vibration system includes a diaphragm assembly, a voice coil surrounding the outer periphery of the magnetic steel unit and arranged in the magnetic gap, a skeleton assembly fixedly connected with the voice coil, and the skeleton assembly is connected to the diaphragm assembly; the diaphragm assembly includes a first sound film, and the inner ring part of the first sound film is bonded on the fixing member.

Further, the inner ring portion of the first sound membrane is integrally formed with the metal pad, and is fixed on the fixing member through the metal pad.

Further, the magnetic bowl assembly includes a magnetic bottom and a magnetic bowl that are opposite to each other; the magnetic bowl includes a bowl bottom and a bowl wall extending along the circumference of the bowl bottom, and the magnetic bowl is far from the bowl at the bowl bottom A bowl surface in contact with the magnetic bottom is formed on the wall, the magnetic bowl and the magnetic bottom form a cavity for accommodating the magnetic steel unit, and the magnetic steel unit is arranged in the cavity and is connected with the magnetic steel unit. the bowl wall forms the magnetic gap;

The bowl wall is provided with a plurality of bowl holes penetrating the bowl wall, and the skeleton assembly passes through the bowl holes and is connected to the voice coil.

Further, the bowl hole penetrates through the bowl wall and is connected to the bowl surface; along the edge of the bowl hole close to the bowl bottom, a plurality of steps arranged along the circumference of the magnetic bowl are formed, and a plurality of the A step forms the fixing member.

Further, the basin frame includes a first bottom wall, a first surrounding wall formed by extending upward from the outer peripheral edge of the first bottom wall, a second bottom wall formed by extending outward from the outer peripheral edge of the first surrounding wall, A second surrounding wall formed by extending upward from the outer peripheral edge of the second bottom wall, a third bottom wall formed by extending outward from the outer peripheral edge of the second surrounding wall, and a third surrounding wall formed by extending upward from the outer peripheral edge of the third bottom wall , and the top of the basin frame formed by the outer peripheral edge of the third surrounding wall extending outward; wherein, the first bottom wall, the second bottom wall, the third bottom wall, the first surrounding wall, the second surrounding wall, the third surrounding The walls are all annular; the outer edge of the top of the basin frame is square, wherein the magnetic circuit system is fixed on the first bottom wall.

Further, a through hole is provided in the middle of the first bottom wall, and at least two grooves penetrating the first bottom wall are formed concavely along the edge of the through hole toward the outer peripheral edge of the first bottom wall;

The size of the magnetic bottom is adapted to the size of the through hole on the first bottom wall, and second protrusions corresponding in number and position to the groove are formed outward along the outer periphery of the magnetic bottom. The two protrusions are clamped on the groove to realize that the magnetic circuit system is fixed on the first bottom wall.

Further, the skeleton assembly includes a first skeleton and a second skeleton; the voice coil includes a first end close to the magnetic bottom and a second end close to the bowl bottom;

the first frame includes a first fixing part, a second fixing part and a first connecting part connecting the first fixing part and the second fixing part; the second fixing part is bonded to the first end of the voice coil;

The second frame includes a third fixing part, a second connecting part, and a fourth surrounding wall formed by extending downward from the lower surface of the third fixing part; one end of the second connecting part is connected to the fourth surrounding wall; The wall is fixedly connected, and the other end is provided with a clamping part; the clamping part is clamped at the second end of the voice coil; the second connection part and the first connection part are arranged up and down facing each other; the first fixing part The diameter of the first fixing part is larger than the diameter of the second fixing part; the diameter of the first fixing part is equal to that of the fourth surrounding wall. The diameter of the wall, the first fixing part is fixed on the fourth surrounding wall.

Further, there are a plurality of the first connecting parts, which are evenly arranged between the first fixing part and the second fixing part; there are a plurality of the second connecting parts, which are evenly arranged at the first on the surrounding wall; the fourth surrounding wall is provided with third protrusions and fourth protrusions that are evenly spaced, and the third protrusions and the fourth protrusions are alternately arranged; the fourth protrusions, the third protrusions The protrusions are respectively fixedly connected with the corresponding second connecting parts.

Further, the diaphragm assembly includes a second sound film and a support member; the inner ring portion of the second sound film is circumferentially bonded to the third fixing portion, and the outer ring portion is circumferentially bonded to the basin frame on the top; the inner ring portion of the support member is circumferentially bonded to the fourth surrounding wall, and the outer ring portion is circumferentially bonded to the third bottom wall and the third surrounding wall of the basin frame; the first The inner ring part of the sound film is circumferentially bonded to the metal pad edge, and the outer ring part is circumferentially bonded to the third fixing part.

Further, the bottom of the second connecting part connected with the fourth protrusion is provided with a strip-shaped groove; the bottom of the fourth protrusion is provided with a first slot and a first slot symmetrically arranged with the first slot. a snap and a second snap; the first fixing part is provided with a second snap slot; the first snap and the second snap are installed in the second snap slot, so that the fourth protrusion is fixed with the first fixing part connected, so that the fourth surrounding wall is fixedly connected with the first fixing part, so that the second frame is fixed on the first frame;

One end of the voice coil lead wire of the voice coil is electrically connected to the voice coil, and the other end passes through the strip-shaped groove and extends to the first slot of the fourth protrusion.

Further, the first connecting portion passes through the bowl hole from the second fixing portion and extends to the first fixing portion; the second connecting portion passes through the bowl hole and extends to the third fixing portion The third protrusion and the fourth protrusion of the part; a first connecting part and a second connecting part pass through a bowl hole at the same time.

beneficial effect

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model supports the magnetic circuit system in the basin frame by connecting the diaphragm assembly in the loudspeaker with the voice coil through the provided skeleton assembly; at the same time, the first sound film of the diaphragm assembly is fixedly connected to the magnetic bowl assembly at the same time. It solves the problem that in the prior art, in order to ensure that the various components in the magnetic circuit system will not be lifted, multiple gaskets are installed between the various components of the magnetic circuit system and the diaphragm assembly, resulting in more parts in the basin frame. The internal structure of the basin frame is complex and other problems.

Description of drawings

Fig. 1 is the explosion structure diagram of the loudspeaker provided by the utility model;

Fig. 2 is the structural representation of the basin frame provided by the utility model;

3 is a schematic structural diagram of a magnetic circuit system provided by the utility model;

4 is a schematic diagram of the internal structure of the magnetic bowl provided by the utility model;

5 is a schematic structural diagram of a first skeleton provided by the present invention;

6 is a schematic diagram of the installation structure of the first skeleton and the voice coil provided by the present invention;

Fig. 7 is the structural representation of the second skeleton provided by the utility model;

8 is a schematic diagram of the installation structure of the second skeleton and the voice coil provided by the present invention;

Fig. 9 is the bottom structure schematic diagram of the second skeleton provided by the utility model;

10 is a schematic structural diagram of a metal edge provided by the present invention;

11 is a schematic diagram of the installation structure of the metal edge, magnetic bowl and second skeleton provided by the present invention;

12 is a schematic diagram of the installation structure of a basin frame, a support member, a magnetic circuit system and a first frame provided by the present invention;

13 is a schematic structural diagram of the first sound membrane provided by the utility model

Fig. 14 is the top view of the loudspeaker provided by the utility model;

FIG. 15 is a cross-sectional view taken along line A-A in FIG. 14 .

In the figure: 1, basin frame; 11, first bottom wall; 12, first enclosure wall; 13, second bottom wall; 14, second enclosure wall; 15, third bottom wall; 16, third enclosure wall; 18, the top of the basin frame; 19, the mounting hole; 17, the first hole; 111, the first protrusion; 112, the first slit; 21, the first frame; 211, the first fixing part; 212, the first connecting part; 214, the second fixing part; 22, the second frame; 221, the third fixing part; 222, the second connecting part; 223, the third protrusion; Four protrusions; 2233, the first slot; 2231, the first buckle; 2232, the second buckle; 213, the second slot; 23, the metal edge; 231, the third slot; 31, the magnetic steel unit ; 32, voice coil; 33, magnetic bottom; 34, magnetic bowl; 35, lead wire of voice coil; 331, second protrusion; 321, first end; 322, second end; 343, bowl hole; 342, step; 3421, vertical extension wall; 3422, horizontal extension wall; 3414, second hole; 41, support member; 42, second sound film; 43, first sound film; 51, first ring diaphragm; 52, second ring Diaphragm; 53, the third annular diaphragm; 61, the first annular dome; 62, the second annular dome.

Embodiments of the present invention

It should be noted that all directional indications (such as up, down, left, right, front, back, inner, outer, top, bottom...) in the embodiments of the present invention are only used to explain the If the specific posture changes, the directional indication also changes accordingly.

It should also be noted that when an element is referred to as being "fixed 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.

The utility model improves the existing speaker basin frame, and provides a new sound film, so that the basin frame is integrally formed, which is more conducive to mass production, and greatly reduces the production cost of the basin frame; The utility model forms an integrated structure with the magnetic circuit system arranged in the basin frame and the metal pad edge, which solves the problems of many parts and inconvenient installation in the loudspeaker in the prior art.

The present invention provides a preferred embodiment, as shown in Figures 1-15, a loudspeaker, comprising a basin frame 1, a vibration system and a magnetic circuit system that drives the vibration system to vibrate and emit sound.

Preferably, an accommodating space is provided in the middle of the basin frame 1, and the vibration system is arranged in the accommodating space. The magnetic circuit system is fixed on the basin frame 1 and includes a magnetic bowl assembly and a magnetic steel unit 31 arranged in the magnetic bowl assembly, and a magnetic gap is formed between the magnetic bowl assembly and the magnetic steel unit 31 . Wherein, the magnetic bowl assembly is provided with a fixed part.

Preferably, the vibration system includes a diaphragm assembly, a voice coil 32 surrounding the periphery of the magnetic steel unit 31 and disposed in the magnetic gap, and a skeleton assembly fixedly connected to the voice coil 32 . Wherein, the skeleton component is connected to the diaphragm component.

Preferably, the diaphragm assembly includes a first sound diaphragm 43 . Wherein, the inner ring portion of the first sound membrane 43 is bonded to the fixing member. Further, the inner ring portion of the first sound membrane 43 is integrally formed with the metal rim 23 , and is fixed on the fixing member through the metal rim 23 . Therefore, in the present invention, by setting the first sound membrane 43 and the metal pad edge 23 into an integral molding structure, the pad edge can be guaranteed not to fall off. At the same time, the first sound film 43 is connected with the skeleton assembly, and the first sound film 43 and the metal pad edge 23 are integrally formed and fixed on the fixed part on the magnetic bowl assembly, that is, the magnetic bowl assembly is guaranteed to be fixed on the magnetic bowl assembly through the skeleton assembly. In the basin frame 1 , the problems in the prior art that more spacers need to be installed in order to ensure the lifting of each component in the magnetic circuit system, resulting in a complex structure in the basin frame 1 , etc., are solved. Further, the outer ring portion of the first sound film 43 is bonded to the frame assembly, so that the first sound film 43 is filled between the metal edge 23 and the frame assembly.

Preferably, the magnetic bowl assembly includes a magnetic bottom 33 and a magnetic bowl 34 that are disposed opposite to each other. The magnetic bowl 34 includes a bowl bottom and a bowl wall extending along the circumference of the bowl bottom, and a bowl surface contacting with the magnetic bottom 33 is formed on the bowl wall of the magnetic bowl 34 away from the bowl bottom. The magnetic bowl 34 and the magnetic bottom 33 form a cavity for accommodating the magnetic steel unit 31 . The magnetic steel unit 31 is arranged in the cavity and forms a magnetic gap with the bowl wall.

Preferably, as shown in FIGS. 2 and 15 , the basin frame 1 includes a first bottom wall 11 , a first surrounding wall 12 formed by extending upward from the outer periphery of the first bottom wall 11 , and extending outward from the outer periphery of the first surrounding wall 12 . The second bottom wall 13 formed, the second surrounding wall 14 formed by extending upward from the outer periphery of the second bottom wall 13, the third bottom wall 15 extending outward from the outer periphery of the second surrounding wall 14, the A third surrounding wall 16 formed by extending the outer periphery of the wall 15 , and a basin frame top 18 formed by extending outwardly from the outer periphery of the third surrounding wall 16 . The first bottom wall 11 , the first surrounding wall 12 , the second bottom wall 13 , the second surrounding wall 14 , the third bottom wall 15 , and the third surrounding wall 16 are all annular. The outside edge of the pot holder top 18 is square. Further, the outer diameters of the first bottom wall 11 and the first surrounding wall 12 are the same, the outer diameters of the second bottom wall 13 and the second surrounding wall 14 are the same, and the outer diameters of the third bottom wall 15 and the third surrounding wall 16 are the same. same diameter. That is, the first bottom wall 11, the first surrounding wall 12, the second bottom wall 13, the second surrounding wall 14, the third bottom wall 15, the third surrounding wall 16 and the top 18 of the basin frame form an annular step, wherein , the first bottom wall 11 and the first surrounding wall 12 form a first annular step, the second bottom wall 13 and the second surrounding wall 14 form a second annular step, and the third bottom wall 15 and the third surrounding wall 16 form a third annular step The step, the top 18 of the basin frame forms a fourth annular step.

By setting the basin frame 1 into an integral molding structure, the utility model has a simple structure, and can be directly injection molded by a mold or completed by a stamping process during production, and the mass production performance is good. Compared with the method of using die-casting aluminum in the prior art In terms of making the pot stand 1 , the production cost of the pot stand 1 can be greatly reduced.

Preferably, the second bottom wall 13 and the third surrounding wall 16 are provided with one or more first holes 17 for heat dissipation of the vibration system and the magnetic circuit system in the speaker.

Preferably, the magnetic circuit system is fixed on the first bottom wall 11 . That is, the magnetic bowl assembly is fixedly mounted on the first bottom wall 11 of the basin frame 1 .

The first bottom wall 11 is annular in design, with a through hole in the middle, and at least two grooves penetrating the first bottom wall 11 are formed along the edge of the through hole inwardly toward the outer periphery of the first bottom wall 11 . That is, the inner edge of the first bottom wall 11 is provided with a plurality of spaced first protrusions 111 extending into the basin frame 1, and a first gap 112 is formed between the adjacent first protrusions 111. The first protrusion 111 surrounds the aforementioned through hole in the middle. The shape of the magnetic bottom 33 corresponds to the through hole, that is, a second protrusion 331 is formed extending outward along the outer periphery of the magnetic bottom 33 , and the number and position of the second protrusions 331 are the same as those on the first bottom wall 11 . The first slits 112 are set correspondingly. By correspondingly installing the second protrusions 331 in the first gaps 112 , the magnetic bottom 33 is fixedly connected to the first bottom wall 11 . The numbers of the first protrusions 111 , the first slits 112 , and the second protrusions 331 are the same, and the positions of the second protrusions 331 and the first slits 112 are the same.

Preferably, there are four first protrusions 111 , first slits 112 and four second protrusions 331 .

Preferably, the voice coil 32 includes a first end 321 near the magnetic bottom 33 and a second end 322 near the bowl bottom of the magnetic bowl 34 .

Preferably, the frame assembly includes a first frame 21 and a second frame 22 .

The first frame 21 includes a first fixing portion 211 , a second fixing portion 214 and a first connecting portion 212 connecting the first fixing portion 211 and the second fixing portion 214 , and the second fixing portion 214 is bonded and fixed to the voice coil 32 the first end 321.

The second frame 22 includes a third fixing part 221 , a second connecting part 222 , and a fourth surrounding wall 225 extending downward from the lower surface of the third fixing part 221 .

One end of the second connecting portion 222 is fixedly connected to the fourth surrounding wall 225 , and the other end is provided with a clamping portion 224 . The clamping portion 224 is clamped on the second end 322 of the voice coil 32 .

Wherein, the second connecting portion 222 and the first connecting portion 212 are disposed vertically facing each other.

Preferably, the third fixing portion 221 , the fourth surrounding wall 225 , the first fixing portion 211 , and the second fixing portion 214 are arranged in a ring shape. The diameter of the first fixing portion 211 is larger than the diameter of the second fixing portion 214 . The diameter of the first fixing portion 211 is equal to the diameter of the fourth surrounding wall 225 , and the first fixing portion 211 is fixed on the fourth surrounding wall 225 .

Preferably, there are a plurality of first connecting portions 212 , which are evenly spaced between the first fixing portion 211 and the second fixing portion 214 . Similarly, there are a plurality of second connecting portions 222 , which are evenly spaced on the fourth surrounding wall 225 .

Preferably, the bowl wall is provided with a plurality of bowl holes 343 penetrating the bowl wall. The bowl hole 343 penetrates the bowl wall and is connected to the bowl surface. The skeleton assembly passes through the bowl hole 343 and connects to the voice coil 32 .

Preferably, each first connecting portion 212 extends from the second fixing portion 214 to the first fixing portion 211 through the bowl hole 343 . Each of the second connecting portions 222 extends through the bowl hole 343 to the third protrusion 223 or the fourth protrusion 226 of the third fixing portion 221 .

A first connection part 212 and a second connection part 222 pass through a bowl hole 343 at the same time.

Preferably, there are four first connection parts 212 , second connection parts 222 and four bowl holes 343 . There are two third protrusions 223 and two fourth protrusions 226 , and the third protrusions 223 and the fourth protrusions 226 are alternately disposed on the fourth surrounding wall 225 at intervals. Wherein, the two third protrusions 223 are arranged opposite to the center of the fourth surrounding wall 225 , and the two fourth protrusions 226 are arranged opposite to the center of the fourth surrounding wall 225 .

The fourth surrounding wall 225 is provided with third protrusions 223 and fourth protrusions 226 that are evenly spaced, and the third protrusions 223 and the fourth protrusions 226 are alternately arranged.

The third protrusion 223 and the fourth protrusion 226 are respectively fixedly connected to one end corresponding to the second connecting portion 222 . The fourth protrusion 226 is provided with a first snap groove 2233 and a first snap 2231 and a second snap 2232 symmetrically arranged with the first snap 2233 .

The first fixing portion 211 is provided with a second slot 213 . The first buckle 2231 and the second buckle 2232 are installed in the second slot 213, so that the fourth protrusion 226 is connected with the first fixing portion 211, so that the fourth surrounding wall 225 is fixed on the first fixing portion 211, That is, the third fixing portion 221 is fixed on the first fixing portion 211 .

The bottom of the second connecting portion 222 connected with the fourth protrusion 226 is provided with a strip-shaped groove. After the second connecting portion 222 and the first connecting portion 212 are disposed to face each other, the strip-shaped groove can be disposed between the first connecting portion 212 and the second connecting portion 222 .

One end of the voice coil lead 35 of the voice coil 32 is electrically connected to the voice coil 32 , and the other end passes through the strip groove and extends to the first slot 2233 of the fourth protrusion 226 .

A plurality of steps 342 are formed along the edge of the bowl hole 343 close to the bowl bottom extending outwardly along the circumferential direction of the magnetic bowl 34 , and the plurality of steps 342 form a fixing part.

The step 342 includes a vertically extending wall 3421 that is fixedly arranged around the bowl wall and a horizontally extending wall 3422 that is bent and extended outward from the vertical extending wall 3421 .

Preferably, the inner side of the metal pad edge 23 is provided with a plurality of third clamping grooves 231 arranged at intervals. The vertically extending wall 3421 of the step 342 is clamped in the third slot 231 , so that the metal edge 23 is clamped on the horizontally extending wall 3422 of the step 342 , so that the metal edge 23 can be installed through the fixing member formed by the steps 342 . on the magnetic bowl assembly. There are four steps 342 .

Preferably, one or more second holes 3414 are provided on the bottom of the bowl. One or more third holes are provided on the magnetic bottom 33 .

Preferably, the diaphragm assembly further includes a support member 41 and a second sound diaphragm 42 .

The inner ring portion of the first sound membrane 43 and the metal rim 23 are in an integral structure, and are fixed on the fixed component through the metal rim 23 , that is, on the magnetic bowl 34 of the magnetic bowl assembly.

Preferably, the outer ring portion of the first sound membrane 43 is also connected to the third fixing portion 221 of the second frame 22 so as to be arranged between the third fixing portion 221 and the metal edge 23 . That is, the inner ring portion of the first sound membrane 43 is circumferentially bonded to the metal pad edge 23 , and the outer ring portion is circumferentially bonded to the third fixing portion 221 .

The support member 41 is disposed on the third bottom wall 15 and the third surrounding wall 16 of the basin frame 1 . Further, the inner ring portion of the support member 41 is bonded to the fourth surrounding wall 225 , and the outer ring portion is bonded to the third bottom wall 15 and the third surrounding wall 16 of the basin frame 1 .

The second sound membrane 42 is disposed between the third fixing portion 221 and the top 18 of the basin frame. Further, the inner ring portion of the second sound membrane 42 is bonded to the third fixing portion 221 , and the outer ring portion is bonded to the top 18 of the basin frame.

Preferably, the support member 41 , the second sound film 42 and the first sound film 43 are all composed of a plurality of annular diaphragms connected in sequence, and adjacent annular diaphragms are connected by annular domes. The number of the annular diaphragm and the annular dome is related to the size of the corresponding sound diaphragm or the supporting member 41 , the size of the annular diaphragm, and the size of the annular dome.

For example, the first sound diaphragm 43 includes a first annular diaphragm 51 , a second annular diaphragm 52 , a third annular diaphragm 53 , and a first annular sphere connecting the first annular diaphragm 51 and the second annular diaphragm 52 The top 61 , and the second annular dome 62 connecting the second annular diaphragm 52 and the third annular diaphragm 53 . The first annular diaphragm 51 is bonded to the third fixing portion 221, and the third annular diaphragm 53 is bonded to the metal pad edge 23, so that the first sound membrane 43 is filled in the third fixing portion 221 and the metal pad. between side 23.

Similarly, the second sound membrane 42 has the same structure as the first sound membrane 43 . Only the arrangement positions of the first sound membrane 43 and the second sound membrane 42 are different. The annular diaphragm of the inner ring of the second sound diaphragm 42 is bonded to the top 18 of the basin frame, and the annular diaphragm of the outer ring is bonded to the third fixing part 221 , so that the second sound film 42 is filled in the third fixing part 221 . between the portion 221 and the top 18 of the pot holder.

In addition, since the positions of the first sound film 43 and the second sound film 42 are different, the setting of the diameters of each annular diaphragm and each annular dome of the second sound film 42 is different from that of the first sound film 43, depending on the specific needs to be set.

Preferably, the structural arrangement of the support member 41 is the same as that of the second sound membrane 42 and the first sound membrane 43 , and also includes a plurality of annular diaphragms connected in sequence and an annular dome disposed between adjacent annular diaphragms. . Among them, the number of annular diaphragm and annular dome is set according to actual needs.

Preferably, the support member 41 is provided with one or more fourth holes.

Further, one or more mounting holes 19 are provided on the top 18 of the basin frame. The mounting holes 19 are used for mounting screws to fix the basin frame 1 .

The present invention also connects the skeleton component in the vibration system arranged in the basin frame 1 with the diaphragm component, and at the same time integrates the diaphragm component with the metal pad edge 23 to ensure the fixed connection between the magnetic circuit system and the diaphragm component , and is fixed in the basin frame 1 through the skeleton assembly, so as to ensure that the various components in the magnetic circuit system will not be lifted, which solves the need for the magnetic circuit system in the prior art to prevent the various components in the magnetic circuit system from lifting. The installation of multiple spacers between the various components of the system and the diaphragm assembly leads to problems such as complicated structure and inconvenient installation in the basin frame 1 . At the same time, the present invention sets the pot holder 1 as an integrated structure, which can be directly completed by a die or a stamping process, so that the pot holder 1 has a simple structure, is easy to mass-produce, and greatly reduces the production cost of the pot holder 1 .

The above-mentioned embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any insubstantial changes and replacements made by those skilled in the art on the basis of the present invention belong to the scope of the present invention. The scope of protection of the utility model.

Claims

A loudspeaker, characterized in that the loudspeaker comprises a basin frame with an accommodating space in the middle, a vibration system arranged in the accommodation space and supported by the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound ; wherein, the magnetic circuit system is fixed on the basin frame, including a magnetic bowl assembly and a magnetic steel unit arranged in the magnetic bowl assembly, a magnetic gap is formed between the magnetic bowl assembly and the magnetic steel unit, and a magnetic gap is formed between the magnetic bowl assembly and the magnetic steel unit. A fixed part is provided; the vibration system includes a diaphragm assembly, a voice coil surrounding the outer periphery of the magnetic steel unit and arranged in the magnetic gap, and a skeleton assembly fixedly connected with the voice coil, the skeleton assembly is connected The vibrating membrane assembly; the vibrating membrane assembly includes a first sound membrane, and the inner ring portion of the first sound membrane is bonded on the fixing member.
The loudspeaker according to claim 1, wherein the inner ring portion of the first sound membrane is integrally formed with the metal pad, and is fixed on the fixing member through the metal pad.
The loudspeaker according to claim 2, characterized in that, the magnetic bowl assembly comprises a magnetic bottom and a magnetic bowl that are disposed opposite to each other; the magnetic bowl comprises a bowl bottom and a bowl wall extending along the circumference of the bowl bottom, so A bowl surface contacting the magnetic bottom is formed on the bowl wall of the magnetic bowl away from the bowl bottom, the magnetic bowl and the magnetic bottom form a cavity for accommodating the magnetic steel unit, and the magnetic steel unit is provided with forming the magnetic gap in the cavity and with the bowl wall;

The bowl wall is provided with a plurality of bowl holes penetrating the bowl wall, and the skeleton assembly passes through the bowl holes and is connected to the voice coil.
The loudspeaker according to claim 3, wherein the bowl hole penetrates through the bowl wall and is connected to the bowl surface; and along the edge of the bowl hole close to the bowl bottom extends outward to form a plurality of magnetic bowls along the Circumferentially arranged steps, a plurality of the steps form the fixing part.
The loudspeaker according to claim 3 or 4, characterized in that, the basin frame comprises a first bottom wall, a first surrounding wall formed by extending upward from the outer peripheral edge of the first bottom wall, and a first surrounding wall formed by the first surrounding wall. a second bottom wall formed by the outer peripheral edge extending outward, a second surrounding wall formed by extending upward from the outer peripheral edge of the second bottom wall, a third bottom wall formed by extending outward from the outer peripheral edge of the second surrounding wall, and a third A third surrounding wall formed by the outer peripheral edge of the bottom wall extending upward, and the top of the basin frame formed by the outer peripheral edge of the third surrounding wall extending outward; wherein the first bottom wall, the second bottom wall, the third bottom wall, the The first surrounding wall, the second surrounding wall and the third surrounding wall are all annular; the outer edge of the top of the basin frame is square, wherein the magnetic circuit system is fixed on the first bottom wall.
The loudspeaker according to claim 5, wherein a through hole is provided in the middle of the first bottom wall, and at least two through holes are formed along the edge of the through hole toward the outer peripheral edge of the first bottom wall. the groove of the first bottom wall;

The size of the magnetic bottom is adapted to the size of the through hole on the first bottom wall, and second protrusions corresponding in number and position to the groove are formed outward along the outer periphery of the magnetic bottom. The two protrusions are clamped on the groove to realize that the magnetic circuit system is fixed on the first bottom wall.
The loudspeaker of claim 5, wherein the bobbin assembly comprises a first bobbin and a second bobbin; the voice coil comprises a first end near the magnetic bottom and a second end near the bowl bottom ;

the first frame includes a first fixing part, a second fixing part and a first connecting part connecting the first fixing part and the second fixing part; the second fixing part is bonded to the first end of the voice coil;

The second frame includes a third fixing part, a second connecting part, and a fourth surrounding wall formed by extending downward from the lower surface of the third fixing part; one end of the second connecting part is connected to the fourth surrounding wall; The wall is fixedly connected, and the other end is provided with a clamping part; the clamping part is clamped at the second end of the voice coil; the second connection part and the first connection part are arranged up and down facing each other; the first fixing part The diameter of the first fixing part is larger than the diameter of the second fixing part; the diameter of the first fixing part is equal to that of the fourth surrounding wall. The diameter of the wall, the first fixing part is fixed on the fourth surrounding wall.
The loudspeaker according to claim 7, characterized in that, there are a plurality of the first connecting parts, and the first connecting parts are evenly spaced between the first fixing part and the second fixing part; The fourth surrounding wall is provided with a third protrusion and a fourth protrusion that are evenly spaced, and the third protrusion and the fourth protrusion are alternately arranged ; The fourth protrusion and the third protrusion are respectively fixedly connected with the corresponding second connecting portion.
The loudspeaker according to claim 8, wherein the diaphragm assembly comprises a second sound film and a supporting member; the inner ring portion of the second sound film is circumferentially bonded on the third fixing portion, and the outer The ring part is circumferentially bonded on the top of the basin frame; the inner ring part of the support member is circumferentially bonded on the fourth surrounding wall, and the outer ring part is circumferentially bonded on the third bottom wall of the basin frame; On the third surrounding wall; the inner ring part of the first sound membrane is circumferentially bonded on the metal pad edge, and the outer ring part is circumferentially bonded on the third fixing part.
The loudspeaker according to claim 8, wherein the bottom of the second connecting part connected with the fourth protrusion is provided with a strip-shaped groove; the bottom of the fourth protrusion is provided with a first card groove and The first snap and the second snap are symmetrically arranged with the first snap; the first fixing part is provided with a second snap; the first snap and the second snap are installed in the second snap, so that the fourth protrusion is fixedly connected with the first fixing part, so that the fourth surrounding wall is fixedly connected with the first fixing part, so that the second frame is fixed on the first frame;

One end of the voice coil lead wire of the voice coil is electrically connected to the voice coil, and the other end passes through the strip-shaped groove and extends to the first slot of the fourth protrusion.
The loudspeaker according to claim 7, wherein the first connecting part passes through the bowl hole from the second fixing part and extends to the first fixing part; the second connecting part passes through the The bowl hole extends to the third protrusion and the fourth protrusion of the third fixing part; a first connecting part and a second connecting part pass through one bowl hole at the same time.