CN214154819U - Loudspeaker inner core, loudspeaker and electronic equipment - Google Patents

Abstract

The embodiment of the application provides a loudspeaker core, a loudspeaker and electronic equipment, wherein at least one bending part of a diaphragm bending ring is moved to the top of a diaphragm frame and suspended on the diaphragm frame, thus, the at least one bending part suspended above the top of the diaphragm frame does not occupy the vibration space enclosed by the inner side wall of the diaphragm frame, and the saved space can be used for the top of the diaphragm ball, therefore, the loudspeaker core provided by the embodiment of the application, under the condition of ensuring that the width of the diaphragm corrugated rim is not reduced, the area of the top of the diaphragm ball can be increased, thereby increasing the effective vibration area, and then promote the sound pressure level of speaker in full frequency band within range, avoided the width undersize of the arc portion of vibrating diaphragm corrugated rim and leaded to the serious condition of the nonlinear problem between the drive power of speaker and the vibrating diaphragm amplitude moreover to guarantee that the increase of speaker amplitude is not restrained.

Description

Loudspeaker inner core, loudspeaker and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of terminal equipment, in particular to a loudspeaker core, a loudspeaker and electronic equipment.

Background

Currently, audio play-out performance of electronic devices such as smart phones is receiving wide attention, and a speaker is a core device for implementing the audio play-out function. In recent years, high performance loudspeakers, especially low frequency performance via large amplitude technology, have been continuously introduced into the industry. Besides amplitude enhancement, the increase of the vibration area is also an important way for enhancing the low-frequency performance of the loudspeaker.

The loudspeaker core comprises a basin frame, a vibrating diaphragm, a voice coil, a magnetic circuit and the like. The present application does not relate to the voice coil and the magnetic circuit portion, and thus the voice coil and the magnetic circuit portion are not explained by letters and drawings. The vibrating diaphragm comprises a vibrating diaphragm ball top and a vibrating diaphragm folding ring arranged on the periphery of the outer edge of the vibrating diaphragm ball top, the vibrating diaphragm ball top is located in the center area of the top of the basin stand, and the vibrating diaphragm folding ring is located between the side wall of the basin stand and the vibrating diaphragm ball top. The traditional technology increases the vibration area of the inner core of the loudspeaker by increasing the area of the top of the diaphragm ball.

However, the above-described method of increasing the vibration area of the speaker reduces the width of the arc portion of the edge of the diaphragm without changing the size of the speaker core. Under the condition of large-amplitude application, the narrow diaphragm corrugated ring design can increase the nonlinearity of a loudspeaker core suspension system, and the large-amplitude application is seriously inhibited.

Disclosure of Invention

The embodiment of the application provides a loudspeaker kernel, a loudspeaker and electronic equipment, and aims to solve the problem that the nonlinearity between the driving force of the loudspeaker and the amplitude of a vibrating diaphragm is aggravated by a traditional method for increasing the vibration area of the loudspeaker, so that the increase of the amplitude of the loudspeaker is seriously inhibited.

The embodiment of the application provides a loudspeaker kernel, which comprises a basin frame and a vibrating diaphragm;

the top of the basin frame is provided with a vibrating diaphragm frame in an annular structure, the inner side wall of the vibrating diaphragm frame encloses a vibrating space, and a vibrating diaphragm cover is arranged at the top of the vibrating diaphragm frame;

the vibrating diaphragm comprises a vibrating diaphragm ball top and a vibrating diaphragm folding ring, the vibrating diaphragm ball top is positioned in the central area of the top opening of the vibrating space, the vibrating diaphragm folding ring is arranged on the outer edge of the vibrating diaphragm ball top in a surrounding mode, and one end of the vibrating diaphragm folding ring is connected with the outer side wall of the vibrating diaphragm frame;

the vibrating diaphragm folding ring is provided with an arc-shaped part, the arc-shaped part comprises a plurality of bending parts, the bending parts are arranged in a surrounding mode along the radial direction of the vibrating diaphragm, and the bending directions of two adjacent bending parts are different;

at least one bending part is arranged above the top of the diaphragm frame in a hanging mode.

The embodiment of the application makes full use of the space above the top of the vibrating diaphragm frame of the basin frame, moves at least one bending part of the vibrating diaphragm folding ring to the top of the vibrating diaphragm frame and is arranged above the vibrating diaphragm frame in a hanging way, so that one part of the vibrating diaphragm folding ring does not occupy the area above the vibrating space enclosed by the inner side wall of the vibrating diaphragm frame because of moving to the top of the vibrating diaphragm frame, and the saved space can be used by the top of the vibrating diaphragm ball, therefore, the inner core of the loudspeaker provided by the embodiment of the application increases the horizontal size of the top of the vibrating diaphragm ball positioned at the inner edge of the vibrating diaphragm folding ring while ensuring the width of the arc part of the vibrating diaphragm folding ring, increases the effective vibrating area, further improves the sound pressure level of the loudspeaker in the full frequency band range, and avoids the serious nonlinear problem between the driving force of the loudspeaker and the vibrating diaphragm amplitude due to the undersize width of the arc part of the vibrating diaphragm folding ring, thereby ensuring that the increase in loudspeaker amplitude is not suppressed.

In a possible implementation, the portion of the arc above the diaphragm frame is curved away from the diaphragm frame.

This application embodiment is through the arc portion that is located vibrating diaphragm frame top toward the direction bending of keeping away from this vibrating diaphragm frame to avoid the arc portion of vibrating diaphragm frame top to collide with vibrating diaphragm frame at upper and lower vibration in-process, thereby guarantee that the amplitude of vibrating diaphragm does not receive vibrating diaphragm frame's interference.

This application embodiment sets up to a plurality of parts of buckling through with arc portion, and sets up the crooked direction of two adjacent parts of buckling into the difference, like this, when guaranteeing that the whole width of arc portion is certain, has increased the arc length of arc portion, at the in-process of the vibration of increasing substantially of vibrating diaphragm ball top for the arc portion of vibrating diaphragm book ring can not receive this vibrating diaphragm ball top and radially pull, thereby has promoted the reliability of vibrating diaphragm book ring under big amplitude application scene.

In a feasible implementation manner, the arc-shaped part of the vibration diaphragm folding ring comprises a first folding part and a second folding part which are sequentially arranged in a surrounding manner along the radial direction of the vibration diaphragm, and the second folding part is positioned between the first folding part and the ball top of the vibration diaphragm;

the first bending part bends towards the direction far away from the vibrating diaphragm frame, and the second bending part bends towards the inner cavity of the vibrating space.

The first bending part is arranged above the top of the vibrating diaphragm frame in a suspended mode.

The embodiment of the application sets up the arc portion to include first bending part and second bending part, and sets up the at least part of first bending part in the top of vibrating diaphragm frame, sets up the arc portion in order to utilize the thickness space of vibrating diaphragm frame, thereby when the area of increase vibrating diaphragm ball top, guarantees the width size of the arc portion that the vibrating diaphragm folded ring. In addition, the first bending part is bent towards the direction far away from the vibrating diaphragm frame, and the second bending part is bent towards the inner cavity of the vibrating space, so that the first bending part is prevented from colliding with the vibrating diaphragm frame in the vertical vibrating process, the arc length of the arc part is increased, and the reliability of the vibrating diaphragm folding ring under a large-amplitude application scene is improved

In one possible implementation manner, the curvature of the first bending portion is equal to that of the second bending portion, and the width of the first bending portion is equal to that of the second bending portion.

This application embodiment is through setting up first bending part and second bending part into the bending radian and equalling, and the width equals, and like this, the first bending part and the second bending part of arc portion reach central symmetry structure to make this vibrating diaphragm edge form symmetrical Kms curve, reduced the distortion of the speaker of this application embodiment.

In a feasible implementation manner, the diaphragm folding ring comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to the outer edge and the inner edge of the arc-shaped portion, the first connecting portion is connected to the outer side wall of the diaphragm frame, and the second connecting portion is connected to the surface of the top of the diaphragm ball.

This application embodiment is connected through rolling over the first connecting portion that the ring is located the arc portion outer fringe with the vibrating diaphragm and being connected with the lateral wall of vibrating diaphragm frame, the second connecting portion that will be located the arc portion inner edge simultaneously are connected with the vibrating diaphragm bulb, not only strengthened the vibrating diaphragm roll over the ring respectively with basin frame and vibrating diaphragm bulb between the joint strength, improve this vibrating diaphragm and roll over the structural stability of ring at basin frame top, and also correspondingly improved the steadiness of vibrating diaphragm bulb at vibration space top opening part, thereby ensure that the vibrating diaphragm is at the stable vibration of basin frame top.

In a possible implementation, the first connecting portion is bonded to the outer sidewall of the diaphragm frame, and the second connecting portion is bonded to the surface of the top of the diaphragm ball.

This application embodiment is through connecting first connecting portion and second connecting portion respectively with the mode that bonds on vibrating diaphragm frame and vibrating diaphragm ball top, has not only guaranteed the joint strength between first connecting portion and the vibrating diaphragm frame and the joint strength between second kink portion and the vibrating diaphragm ball top, has simplified the vibrating diaphragm moreover and has rolled over the connection structure between ring and vibrating diaphragm frame and the vibrating diaphragm ball top to the preparation efficiency of speaker kernel has been improved.

In a feasible implementation, the surface of the first connecting part facing the outer side wall of the vibrating diaphragm frame is provided with a buckle, a clamping groove matched with the buckle is formed in the outer side wall of the vibrating diaphragm frame, and the buckle is clamped in the clamping groove.

This application embodiment is connected through the buckle between the lateral wall with first connecting portion and vibrating diaphragm frame, has restricted this first connecting portion to move about in the direction of height of vibrating diaphragm frame to further strengthened the structural stability of first connecting portion on the vibrating diaphragm frame. In addition, the buckle on the first connecting portion is clamped in the clamping groove of the vibrating diaphragm frame, so that the connecting area between the first connecting portion and the vibrating diaphragm frame is increased, and the connecting strength between the first connecting portion and the outer side wall of the vibrating diaphragm frame is further improved.

In a possible implementation, the buckle has a large end and a small end in the extension direction, and the small end is connected to the first connecting portion.

The embodiment of the application sets up the buckle to include main aspects and tip, and set up the tip on first connecting portion, the main aspects keep away from first connecting portion and contact with the interior diapire of draw-in groove, like this, this buckle has not only restricted first connecting portion and has moved about in the direction of height of vibrating diaphragm frame, has improved the degree of difficulty that the buckle deviates from in the draw-in groove moreover, has guaranteed promptly that the buckle can not deviate from in the draw-in groove easily, thereby has improved the connection steadiness between first connecting portion and the vibrating diaphragm frame.

In a feasible implementation manner, the diaphragm frame is provided with a limiting part, and the limiting part is used for being matched with the protruding part on the inner wall of the box body so as to limit the height of the loudspeaker core in the box body.

This application embodiment is through setting up spacing portion on the vibrating diaphragm frame to the box inner wall through this spacing portion and speaker mutually supports, limits the height of this speaker kernel in the box, thereby guarantees that the vibrating diaphragm on the speaker kernel can carry out vibration from top to bottom along the direction of height of box. In addition, the setting of this spacing portion plays the effect of quick location to the assembly of this speaker kernel in the box, for example, removes this speaker kernel from the bottom of box toward box inner chamber, as long as spacing portion on this speaker kernel realizes the cooperation with the bulge on the box inner wall, alright accomplish the quick location of this speaker kernel in box inner chamber to the assembly efficiency of speaker kernel in the box has been improved.

In a possible implementation manner, at least a part of the top surface of the diaphragm frame is configured as a limiting part, and the limiting part abuts against one side of the protruding part facing the bottom of the box body.

This application embodiment is through the part top surface with the vibrating diaphragm frame as spacing portion to when guaranteeing that the speaker kernel of this application embodiment stably restricts the take the altitude in the speaker box, simplified the structure setting of speaker kernel, thereby improved the preparation efficiency of speaker kernel. Simultaneously, through propping the top with this spacing portion in the inside one side of bulge orientation box to simplify the cooperation structure between spacing portion and the bulge, thereby improve the location efficiency of speaker kernel in the box.

In one possible implementation, the cross section of the basin stand is a quadrilateral structure, the top of the basin stand is provided with four corners, and part of the top surface of each corner is configured as a limiting part.

The cross section of this application embodiment through with the basin frame sets up to quadrangle structure to regard as spacing portion with four turning top surfaces of this quadrangle structure, not only guarantee the speaker kernel and assemble the high department of predetermineeing in the speaker box steadily, the structure at four turnings has also increased the quantity of spacing portion moreover, makes four turnings of basin frame butt simultaneously on the bulge of box inside, thereby has further improved the stability of the basin frame of speaker kernel in bulge one side.

In a possible implementation manner, the part of the diaphragm edge on the limiting part is configured to be a plane, and the plane is attached to the surface of the limiting part.

In practical application, the bottom surface of the bulge in the loudspeaker box body is of a planar structure, the part of the diaphragm corrugated ring on the limiting part is configured into a plane, and thus the matching between the limiting part and the bulge on the loudspeaker core is the butt between the plane and the plane, so that the contact area between the loudspeaker core and the bulge is increased, the limiting part and the diaphragm corrugated ring on the limiting part are stably abutted to the bottom surface of the bulge, and the stability of the loudspeaker core in the box body is improved. In addition, through will be located the vibrating diaphragm book ring on spacing portion and set up to the plane, like this, this vibrating diaphragm book ring alright closely laminate with spacing portion to the stability of vibrating diaphragm book ring in spacing portion has been strengthened.

In a feasible implementation mode, the width of the arc-shaped part of the diaphragm corrugated rim is more than or equal to 0.5mm and less than or equal to 2mm, so that the problem of nonlinearity of the loudspeaker is avoided, and the maximum value of the amplitude of the loudspeaker is improved.

The embodiment of the application also provides a loudspeaker, which comprises a box body and the loudspeaker inner core;

the loudspeaker inner core is arranged in the inner core space of the box body.

The embodiment of the application sets up above-mentioned speaker kernel in the box of speaker, at least part through the arc portion with the vibrating diaphragm book ring sets up in vibration space's lateral wall top, make the vibrating diaphragm book ring's arc portion make full use of basin frame's vibrating diaphragm frame's thickness space, thus, can be when guaranteeing the width of the arc portion of vibrating diaphragm book ring, the increase is located the radial dimension of the vibrating diaphragm bulb top of vibrating diaphragm book ring inner edge, thereby not only increased effective vibration area, and then promote the sound pressure level of speaker at full frequency band within range, and avoided the width of the arc portion of vibrating diaphragm book ring and lead to the serious condition of the non-linear problem between the drive power of speaker and the undersize vibrating diaphragm amplitude, thereby guarantee that the increase of speaker amplitude is not inhibited, the amplitude maximum value of this speaker has been improved.

In a feasible realization mode, a convex part extends on the inner side wall of the box body,

the side wall of the loudspeaker inner core is provided with a limiting part, and the limiting part is matched with the protruding part so as to limit the height of the loudspeaker inner core in the box body.

This application embodiment is through setting up spacing portion on the lateral wall of speaker kernel to the box inner wall through this spacing portion and speaker mutually supports, restricts the height of this speaker kernel in the box, thereby guarantees that the vibrating diaphragm on the speaker kernel can carry out vibration from top to bottom along the direction of height of box. In addition, the setting of this spacing portion plays the effect of quick location to the assembly of this speaker kernel in the box, for example, moves this speaker kernel from the bottom of box to the kernel space of box, as long as spacing portion on this speaker kernel realizes the cooperation with the bulge on the box inner wall, alright accomplish the quick location of this speaker kernel in the box inner chamber to the assembly efficiency of speaker kernel in the box has been improved.

In one possible implementation, the speaker further includes a sealing layer disposed between an outer sidewall of the speaker core and an inner sidewall of the cabinet.

This application embodiment sets up the sealing layer through setting up between the lateral wall of speaker kernel and the inside wall of box to sound in avoiding the speaker reveals from the bottom of speaker, thereby guarantees the sound intensity who spreads from the speaker is positive.

An embodiment of the present application further provides an electronic device, which includes the speaker as described above.

This application embodiment is through setting up above-mentioned speaker in electronic equipment, promotes the sound pressure level of speaker at full frequency band within range, and the width undersize of the arc portion of having avoided the diaphragm to roll over the ring in the speaker moreover leads to the serious condition of the nonlinear problem between the drive power of speaker and the diaphragm amplitude to guarantee that the increase of speaker amplitude is not restrained, improved the amplitude maximum value of this speaker.

Drawings

Fig. 1 is a schematic diagram of one structure of a speaker core provided in an embodiment of the present application;

FIG. 2 is a top view of one of the structures of a speaker core provided by embodiments of the present application;

FIG. 3 is a schematic view of the internal structure of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a cross-sectional view of another configuration of a speaker core provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a speaker provided in an embodiment of the present application at a first viewing angle;

fig. 7 is a schematic structural diagram of a speaker provided in an embodiment of the present application at a second viewing angle;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

fig. 10 is a partial enlarged view at I in fig. 9.

Description of reference numerals:

10-a speaker core; 20-a loudspeaker;

100-a basin stand; 200-a diaphragm; 300-a box body; 400-a sealing layer;

110-a vibration space; 120-a diaphragm frame; 210-vibrating diaphragm dome; 220-diaphragm edge folding; 310 — kernel space; 320-a projection;

121-a limiting part; 221-an arc; 222 — a first connection; 223-a second connection;

2211-first bend; 2212-second bend; 2213-third bend; 2221-snap fastener.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

It is known that, in addition to improving the low-frequency performance of the speaker by amplitude boosting, the increase of the vibration area is also an important way to improve the low-frequency performance of the speaker.

Typically, the speaker core includes a frame, a diaphragm, a voice coil, and a magnetic circuit. The present application does not relate to the voice coil and the magnetic circuit portion, and therefore nothing relevant is shown in the text and drawings. The top of basin frame has annular vibrating diaphragm frame, and the edge of vibrating diaphragm bonds on the vibrating diaphragm frame. Wherein, the vibrating diaphragm includes vibrating diaphragm ball-top and connects the vibrating diaphragm book ring in vibrating diaphragm ball-top periphery, and this vibrating diaphragm book ring has crooked arc part, and this arc part is used for driving the vibrating diaphragm ball-top along the direction of height vibration of basin frame.

In the conventional art, in order to increase the sound pressure level of the speaker, the size of the diaphragm ball in the horizontal direction is generally increased to increase the vibration area of the speaker. However, the horizontal dimension of the speaker core is limited, and particularly when the speaker is a micro-speaker, when the horizontal dimension of the diaphragm dome is too large, the horizontal dimension of the diaphragm edge at the outer periphery of the diaphragm dome is reduced, thereby reducing the horizontal dimension (i.e., width) of the arc-shaped portion of the diaphragm edge.

The width of the arc-shaped part of the diaphragm edge is too small, which can cause a serious problem of nonlinearity between the driving force of the loudspeaker and the amplitude of the diaphragm. Specifically, when the amplitude of the diaphragm of the loudspeaker is large, the diaphragm edge stiffness coefficient (Kms) increases with the increase in the amplitude (displacement of the diaphragm in the vibration direction), which increases the driving force F required for the loudspeaker at large amplitude (where F is kms.x, and x is the amplitude). Because the output capability of the power amplifier for driving the loudspeaker is limited, that is, the driving force F of the loudspeaker is limited, which results in limited increase of the amplitude, and the low-frequency signal has a lower vibration frequency and a larger amplitude, when the amplitude of the diaphragm is greater than that of the low-frequency signal, the diaphragm can accurately restore the low-frequency signal, but when the amplitude of the diaphragm is smaller than that of the low-frequency signal, the diaphragm of the loudspeaker cannot accurately restore the amplitude of the low-frequency signal, so that the loudspeaker cannot accurately restore the low-frequency sound, when the amplitude of the diaphragm is limited, part of the low-frequency signal cannot be accurately restored, thereby reducing the low-frequency performance of the loudspeaker.

The loudspeaker kernel that this application embodiment provided, through changing the position that the vibrating diaphragm rolled over the ring, for example, this application embodiment rolls over the arc portion setting of ring in vibrating diaphragm frame top through the vibrating diaphragm for the thickness space of the arc portion make full use of vibrating diaphragm frame of ring is rolled over to the vibrating diaphragm, like this, can increase the area of vibrating diaphragm ball top when guaranteeing the width of the arc portion that the vibrating diaphragm rolled over the ring, and then promotes the sound pressure level of loudspeaker at full frequency band within range. When the vibration area is increased, the condition that the width of the arc-shaped part of the vibration diaphragm corrugated ring is too small to cause the aggravation of the nonlinear problem is avoided.

The following describes in detail specific configurations of the speaker core, the speaker, and the electronic device according to the embodiments of the present application.

Fig. 1 is a schematic diagram of one structure of a speaker core provided in an embodiment of the present application. Referring to fig. 1, an embodiment of the present application provides a speaker core 10 including a frame 100 and a diaphragm 200. Wherein, the top of the frame 100 has a diaphragm frame 120, the diaphragm frame 120 is a ring structure, and the diaphragm frame 120 encloses the vibration space 110 of the diaphragm 200.

The frame 100 may be integrally formed by injection molding, for example, a mounting groove may be formed at the top of the frame 100, the mounting groove serves as the vibration space 110, and an annular groove wall around the mounting groove serves as the diaphragm frame 120.

For another example, the frame 100 may include a frame base and a diaphragm frame 120 disposed around the top of the frame base, the annular diaphragm frame 120 may be formed by welding metal wire bands, and the inside of the annular diaphragm frame 120 is the vibration space 110. The embodiment of the present application does not specifically limit the manufacturing method of the diaphragm frame 120.

Fig. 2 is a top view of one of the structures of the speaker core provided in the embodiments of the present application, and fig. 3 is a schematic diagram of the internal structure of fig. 2. Referring to fig. 1 to 3, a diaphragm 200 according to an embodiment of the present invention is covered on the top of the frame 100, such that the diaphragm 200 is located at the opening portion of the diaphragm frame 120, and can freely vibrate up and down inside the diaphragm frame 120, i.e., the vibration space 110 and outside.

Fig. 4 is a sectional view of fig. 3. Referring to fig. 2 to 4, specifically, the diaphragm 200 of the embodiment of the present application includes a diaphragm ball top 210 and a diaphragm ring 220, where the diaphragm ball top 210 is located in a central region of a top opening of the vibration space 110, the diaphragm ball top 210 can vibrate up and down along a height direction (i.e., a z-axis direction in fig. 4) of the frame 100 at the top opening of the vibration space 110, the diaphragm ring 220 is wound around an outer edge of the diaphragm ball top 210, that is, an inner edge of the diaphragm ring 220 is disposed at an outer edge of the diaphragm ball top 210, and an outer edge of the diaphragm ring 220 is connected to an outer sidewall of the diaphragm frame 120.

Here, the height direction of the frame 100 refers to a direction indicated by the z-axis in fig. 4.

Referring to fig. 4, in practical application, the diaphragm edge 220 has an arc portion 221 disposed in a curved manner, and the arc portion 221 is disposed around the outer edge of the diaphragm dome 210. The curvature radius of any position on the surface of the arc-shaped portion 221 may be equal, for example, the arc-shaped portion 221 has an arc structure.

In the embodiment of the present application, the vibration of the arc-shaped portion 221 of the vibrating diaphragm corrugated rim 220 drives the vibrating diaphragm dome 210 to vibrate up and down along the height direction of the basin stand 100, and simultaneously, the vibrating diaphragm dome 210 is prevented from moving in the horizontal direction.

The horizontal direction of the frame 100 is a direction perpendicular to the height direction (z-axis direction in fig. 4) of the frame 100, and may be, for example, the x-axis direction in fig. 3 or the y-axis direction in fig. 3.

In the embodiment of the present application, at least a portion of the arc-shaped portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, for example, referring to fig. 4, a portion of the arc-shaped portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, or, in some other examples, all of the arc-shaped portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120. The upper side of the diaphragm frame 120 is the upper side of the tip end surface of the diaphragm frame 120 in the z-axis direction in fig. 4. When at least part of the arc portion 221 is located above the diaphragm frame 120, at least part of the arc portion 221 is suspended above the diaphragm frame 120, that is, at least part of the arc portion 221 does not contact or touch the top of the diaphragm frame 120 during vibration.

Wherein, when the whole of the arc portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, the arc portion 221 of the diaphragm edge 220 is moved above the diaphragm frame 120, that is, the whole arc portion 221 is moved above the diaphragm frame 120, so the horizontal size of the top opening of the vibration space 110 is not occupied, thus, under the condition that the horizontal size of the basin frame 100 is fixed, the outer edge of the diaphragm ball top 210 can extend towards the inner side wall of the diaphragm frame 120, thereby not only increasing the area of the diaphragm ball top 210, but also ensuring that the arc portion 221 of the diaphragm edge 220 can not be affected by the size, and further avoiding the condition that the width of the arc portion 221 of the diaphragm edge 220 is too small and the nonlinear problem between the driving force of the loudspeaker and the amplitude of the diaphragm is serious.

Note that, when the portion of the arc-shaped portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, as shown in fig. 5, the width L of the arc-shaped portion 221 of the diaphragm edge 220 is greater than the thickness b of the diaphragm frame 120. When the whole of the arc portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, the width L (see fig. 5) of the arc portion 221 of the diaphragm edge 220 is less than or equal to the thickness b of the diaphragm frame 120, so as to ensure that the whole arc portion 221 is located above the diaphragm frame 120.

The thickness b of the diaphragm frame 120 specifically refers to the thickness of the top of the diaphragm frame 120 (i.e., the end of the diaphragm frame 120 away from the frame 100 along the z-axis direction in fig. 5).

In the embodiment of the present application, the width L of the arc-shaped portion 221 of the diaphragm edge 220 is greater than or equal to 0.5mm and less than or equal to 2mm, and for example, the width L of the arc-shaped portion 221 may be an appropriate value, such as 0.5mm, 0.7mm, 1mm, 1.5mm, and 2 mm. Therefore, the width L of the arc-shaped portion 221 of the diaphragm edge 220 is not too small, so as to avoid the situation that the width of the arc-shaped portion 221 of the diaphragm edge 220 is too small and the nonlinear problem between the driving force of the loudspeaker and the amplitude of the diaphragm is serious in the loudspeaker core 10, and therefore, in the embodiment of the present application, the width L of the arc-shaped portion 221 of the diaphragm edge 220 is greater than or equal to 0.5mm and less than or equal to 2mm, so that the maximum value of the amplitude of the loudspeaker 20 can be improved.

Referring to fig. 5, the width L of the arc portion 221 refers to the distance from the end of the arc portion 221 close to the diaphragm dome 210 to the end far from the diaphragm dome 210.

In the embodiment of the present application, when the portion of the arc portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, for example, as shown in fig. 5, 1/3L of the arc portion 221 of the diaphragm edge 220 may be disposed above the diaphragm frame 120, so that 1/3L may extend from the outer edge of the diaphragm ball top 210 toward the diaphragm frame 120, so as to ensure that the width of the arc portion 221 is not reduced, the area of the diaphragm ball top 210 is increased, and when the area of the diaphragm ball top 210 is increased, the vibration area of the speaker is increased, thereby increasing the sound pressure level of the speaker.

In some examples, when the portion of the arc-shaped portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, the orthographic projection of the arc-shaped portion 221 of the diaphragm edge 220 on the diaphragm frame 120 may completely cover the end surface of the top end of the diaphragm frame 120. For example, referring to fig. 5, when the arc 221 is projected along the-z axis, a part of the projection covers the end surface of the top end of the diaphragm frame 120, a part of the projection is located on the inner sidewall of the diaphragm frame 120, and a part of the projection is located at the top opening of the vibration space 110.

In other examples, when all of the arc portion 221 of the diaphragm edge 220 is located above the diaphragm frame 120, the orthographic projection of the arc portion 221 of the diaphragm edge 220 on the diaphragm frame 120 may cover a part of the top surface or all of the top surface of the diaphragm frame 120.

The embodiment of the application sets up in vibrating diaphragm frame 120 top through the at least part of the arc portion 221 with vibrating diaphragm dog-ear 220, make vibrating diaphragm dog-ear 220's arc portion 221 make full use of basin frame 100's vibrating diaphragm frame 120's thickness space, thus, can be when guaranteeing vibrating diaphragm dog-ear 220's arc portion 221's width, the increase is located vibrating diaphragm dome 210's the horizontal dimension of vibrating diaphragm dog-ear 220 inner edge, thereby not only increased effective vibration area, and then promote speaker 20 sound pressure level at full frequency band within range, and avoided vibrating diaphragm dog-ear 220's arc portion 221's width undersize and lead to the serious condition of the non-linear problem between the drive power of speaker and the vibrating diaphragm amplitude, thereby guarantee that the increase of speaker 20 amplitude is not restrained.

As can be seen from simulation experiments, the loudspeaker core 10 according to the embodiment of the present application increases the vibration area, so that the sound pressure level is improved in the full frequency band range. Taking 12mm 16mm size speaker 20 as an example, adopting the speaker kernel 10 of this application embodiment, its vibration area can promote 11%, and corresponding full frequency band sound pressure level promotes 0.9 dB.

Referring to fig. 5, in an embodiment of the present application, when the portion of the arc portion 221 above the diaphragm frame 120 is bent, the portion may be bent away from the diaphragm frame 120.

With this configuration, the arc portion 221 above the diaphragm frame 120 can be prevented from colliding with the diaphragm frame 120 during the up-down vibration process, so as to ensure that the amplitude of the diaphragm 200 is not interfered by the diaphragm frame 120.

In addition, the part of the arc-shaped part 221 above the diaphragm frame 120 is bent away from the diaphragm frame 120, so that the assembly between the diaphragm edge 220 and the frame 100 is also facilitated.

In some examples, when at least a portion of the arc portion 221 is suspended above the diaphragm frame 120, as shown in fig. 5, a gap e between a portion of the arc portion 221 above the diaphragm frame 120 and the top surface of the diaphragm frame 120 is greater than or equal to 0.3mm, so as to facilitate assembly between the arc portion 221 and the frame 100, and at the same time, by setting the gap within the above range, the arc portion 221 is ensured to stably vibrate without interference of the diaphragm frame 120.

The gap e refers to a maximum gap between the arc-shaped portion 221 and the top surface of the diaphragm frame 120 when the arc-shaped portion 221 is bent in a direction away from the diaphragm frame 120, and the gap e refers to a distance between a side of the arc-shaped portion 221 facing the top surface of the diaphragm frame 120 and the top surface of the diaphragm frame 120.

For example, the gap e between the portion of the arc-shaped portion 221 above the diaphragm frame 120 and the top surface of the diaphragm frame 120 may be 0.3mm, 0.4mm, 0.5mm, 0.6mm, or the like. It will be appreciated that the above-described gap may be adjusted in particular according to the height of loudspeaker 20 and the performance requirements of loudspeaker 20.

As one implementation manner, the arc portion 221 of the diaphragm edge 220 may be bent once along a direction perpendicular to the z-axis direction in fig. 3, for example, the entire arc portion 221 is an arc structure bending toward a direction away from the diaphragm frame 120, so as to simplify the structure of the diaphragm edge 220, thereby improving the manufacturing efficiency of the speaker core 10.

As another implementation manner, the arc portion 221 of the diaphragm edge 220 may further include a plurality of bending portions, and the plurality of bending portions may be bent up and down in the x-axis direction in fig. 5 a plurality of times.

Wherein, the bending directions of two adjacent bending parts are different. For example, one of the bent portions is a circular arc structure that is bent in a direction away from the diaphragm frame 120, for example, one bent portion may be a convex arc surface, and the bent portion adjacent to the bent portion is a circular arc structure that is bent in a direction close to the diaphragm frame 120, for example, another adjacent bent portion may be a concave arc surface.

When the arc portion 221 includes a plurality of bent portions, at least one bent portion may be disposed in the air above the top of the diaphragm frame 120, for example, one of the bent portions may be disposed in the air above the top of the diaphragm frame 120, or two bent portions may be disposed in the air above the top of the diaphragm frame 120.

This application embodiment sets up to a plurality of parts of buckling through arc portion 221, and sets up the crooked direction of two adjacent parts of buckling into the difference, like this, when guaranteeing that the whole width of arc portion 221 is certain, the arc length of arc portion 221 has been increased, at the in-process of vibrating diaphragm dome 210's vibration by a wide margin, make the arc portion 221 of vibrating diaphragm book ring 220 can not receive this vibrating diaphragm dome 210 and pull in radial, thereby promoted the reliability of vibrating diaphragm book ring 220 under the scene is used to big amplitude.

Continuing with fig. 5, illustratively, the arc portion 221 of the diaphragm corrugated rim 220 includes a first curved portion 2211 and a second curved portion 2212, which are sequentially arranged in a ring, and the second curved portion 2212 is located between the first curved portion 2211 and the diaphragm dome 210, in other words, the inner edge of the second curved portion 2212 of the arc portion 221 is connected to the outer edge of the diaphragm dome 210, and the outer edge of the second curved portion 2212 is connected to the inner edge of the first curved portion 2211.

The first bending portion 2211 is suspended above the top of the diaphragm frame 120 to use the thickness space of the diaphragm frame 120 to set the arc portion 221, so as to increase the area of the diaphragm dome 210 and ensure the width of the arc portion 221 of the diaphragm corrugated rim 220.

It should be noted that, when the first bending portion 2211 is suspended above the top of the diaphragm frame 120, all areas of the first bending portion 2211 may be suspended above the top of the diaphragm frame 120, or a part of the areas of the first bending portion 2211 may be suspended above the top of the diaphragm frame 120.

In addition, the first bending portion 2211 is bent in a direction away from the diaphragm frame 120, and the second bending portion 2212 is bent in the vibration space 110, so that the first bending portion 2211 is prevented from colliding with the diaphragm frame 120 in the up-and-down vibration process, and the first bending portion 2211 and the second bending portion 2212 are bent in different directions, so that the arc length of the arc portion 221 is increased, and the reliability of the diaphragm folding ring 220 in a large-amplitude application scene is improved.

Specifically, when the arrangement is performed, the bending radians of the first bending portion 2211 and the second bending portion 2212 may be equal, and the widths of the first bending portion 2211 and the second bending portion 2212 are equal, so that the first bending portion 2211 and the second bending portion 2212 of the arc portion 221 form a central symmetric structure, and when the diaphragm corrugated rim 220 vibrates, the Kms curve corresponding to the first bending portion 2211 and the Kms curve corresponding to the second bending portion 2212 are symmetric, so that the distortion degree of the speaker 20 is reduced, that is, the situation that the speaker 20 of the embodiment of the present application is excessively distorted is avoided.

For another example, the arc portion 221 of the diaphragm corrugated rim 220 may further include a third bending portion 2213 (see fig. 4) annularly disposed between the second bending portion 2212 and the diaphragm dome 210, in other words, the third bending portion 2213 is disposed at an end of the second bending portion 2212 far away from the first bending portion 2211 (i.e., an inner edge of the second bending portion 2212). The bending direction of the third bending portion 2213 is opposite to the bending direction of the second bending portion 2212, for example, when the second bending portion 2212 bends toward the inside of the vibration space 110, the third bending portion 2213 bends toward the outside of the vibration space 110 to further increase the arc length of the arc portion 221, thereby improving the reliability of the diaphragm edge 220 in a large-amplitude application scenario.

Referring to fig. 5, in the speaker core 10 according to the embodiment of the present disclosure, the diaphragm edge 220 may include a first connection portion 222 and a second connection portion 223. The first connection portion 222 and the second connection portion 223 are respectively connected to the outer edge and the inner edge of the arc portion 221, for example, the first connection portion 222 is connected to the outer edge of the arc portion 221 (the end far from the diaphragm dome 210), and the second connection portion 223 is connected to the inner edge of the arc portion 221 (the end near the diaphragm dome 210).

In particular, during assembly, the first connection portion 222 of the diaphragm edge 220 may be connected to the outer sidewall of the diaphragm frame 120, and the second connection portion 223 is connected to the surface of the diaphragm dome 210. The second connecting portion 223 may be connected to the outer surface of the diaphragm dome 210, or the second connecting portion 223 may be connected to the inner surface of the diaphragm dome 210.

It should be noted that the outer surface of the diaphragm ball top 210 refers to the surface of the diaphragm ball top 210 facing the outside of the vibration space 110, and the inner surface of the diaphragm ball top 210 refers to the surface of the diaphragm ball top 210 facing the inside of the vibration space 110.

The first connection portion 222 and the outer sidewall of the diaphragm frame 120, and the second connection portion 223 and the diaphragm dome 210 may be connected by gluing, clamping, welding or fastening members.

This application embodiment is through being connected first connecting portion 222 with the lateral wall of vibrating diaphragm frame 120, is connected second connecting portion 223 with vibrating diaphragm ball-top 210, has not only strengthened the vibrating diaphragm roll over the link 220 respectively with basin frame 100 and vibrating diaphragm ball-top 210 between the joint strength, improve this vibrating diaphragm roll over the structural stability of link 220 at basin frame 100 top, and also correspondingly improved the steadiness of vibrating diaphragm ball-top 210 at vibration space 110 open-top to ensure that vibrating diaphragm 200 vibrates steadily at basin frame 100 top.

As an alternative implementation, the first connection portion 222 is detachably connected to the outer sidewall of the diaphragm frame 120, and correspondingly, the second connection portion 223 is detachably connected to the surface of the diaphragm dome 210. In the embodiment of the present application, the detachable connection includes, but is not limited to, a snap connection, an adhesive connection, or a fastening connection of a fastening component, for example, the first connection portion 222 may be adhered to the outer sidewall of the diaphragm frame 120 by a glue layer, and similarly, the second connection portion 223 may also be adhered to the surface of the diaphragm dome 210 by a glue layer.

In the embodiment of the present application, the first connecting portion 222 and the second connecting portion 223 are respectively connected to the diaphragm frame 120 and the diaphragm ball top 210 in an adhesion manner, so that not only the connection strength between the first connecting portion 222 and the diaphragm frame 120 and the connection strength between the second bending portion 2212 and the diaphragm ball top 210 are ensured, but also the connection structure between the diaphragm folding ring 220 and the diaphragm frame 120 and between the diaphragm ball top 210 is simplified, thereby improving the manufacturing efficiency of the speaker core 10.

For another example, the first connecting portion 222 is connected to the outer sidewall of the diaphragm frame 120 by a snap-fit connection. Specifically, a buckle 2221 (see fig. 4) may be disposed on a surface of the first connection portion 222 facing an outer side wall of the diaphragm frame 120, a slot matching with the buckle 2221 may be formed on the outer side wall of the diaphragm frame 120, and the buckle 2221 is clamped in the slot.

In the embodiment of the application, the first connection portion 222 is connected with the outer side wall of the diaphragm frame 120 through the buckle 2221, so that the movement of the first connection portion 222 in the z-axis direction of the diaphragm frame 120 is limited, and the structural stability of the first connection portion 222 on the diaphragm frame 120 is further enhanced.

In addition, the buckle 2221 on the first connection portion 222 is clamped in the clamping groove of the diaphragm frame 120, so that the connection area between the first connection portion 222 and the diaphragm frame 120 is increased, and the connection strength between the first connection portion 222 and the outer side wall of the diaphragm frame 120 is further improved.

In a specific implementation, the buckle 2221 in the embodiment of the present application may have a small end and a large end, the small end is connected to the first connecting portion 222, and the large end is located in the slot. For example, the size of the outer contour of the clip 2221 gradually increases along the groove depth direction of the clip groove, and accordingly, the size of the clip groove on the outer side wall of the diaphragm frame 120 matches the size of the outer contour of the clip 2221, that is, the size of the clip groove gradually increases from the groove opening to the groove bottom. For example, the cross-sectional shape of the snap 2221 is trapezoidal (see fig. 4).

In the embodiment of the present application, the buckle 2221 is configured to include the big end and the small end, and the small end is disposed on the first connecting portion 222, the big end is away from the first connecting portion 222 and is clamped into the clamping groove, so that the contact area between the inner walls of the buckle 2221 and the clamping groove is gradually increased in the direction from the groove opening of the clamping groove to the groove bottom of the clamping groove, and thus, the buckle 2221 not only limits the movement of the first connecting portion 222 in the height direction of the diaphragm frame 120, but also improves the difficulty in releasing the buckle 2221 from the clamping groove, i.e., it is ensured that the buckle 2221 cannot be easily released from the clamping groove, thereby improving the connection stability between the first connecting portion 222 and the diaphragm frame 120.

It should be noted that the groove bottom of the clamping groove refers to a groove wall of the clamping groove facing the notch.

It should be noted that the small end of the buckle 2221 is specifically the smaller end of the buckle 2221, and the large end of the buckle 2221 is specifically the larger end of the buckle 2221.

In some examples, a protrusion (not shown) may extend from a side wall of the clip 2221, and a groove matching with the protrusion is formed on a groove wall of the slot, so that the clip 2221 is stably inserted into the slot by inserting the clip 2221 into the slot and extending the protrusion into the groove, thereby improving the connection stability between the first connection portion 222 and the diaphragm frame 120.

When the second connection portion 223 of the embodiment of the application is connected to the diaphragm dome 210, the second connection portion 223 may be clamped on the diaphragm dome 210. For example, a latch 2221 may be disposed on a side of the second connection portion 223 facing the outer surface of the diaphragm dome 210, a slot matching with the latch 2221 is formed on the outer surface of the diaphragm dome 210, and the latch 2221 is latched in the slot, so that the second connection portion 223 is stably connected to the diaphragm dome 210.

As another alternative implementation manner, the diaphragm edge 220 may be further disposed with the frame 100 and the diaphragm dome 210 as an integrally formed integral body, for example, the second connection portion 223 of the diaphragm edge 220 is integrally injection-molded with the diaphragm dome 210, and the first connection portion 223 of the diaphragm edge 220 is integrally injection-molded with the frame 100, so as to enhance the connection strength between the diaphragm edge 220 and the frame 100 and between the diaphragm edge 220 and the diaphragm dome 210.

It can be understood that, when the diaphragm folding ring 220 and the basin frame 100 are integrally formed into a single piece by injection molding, a clamping groove may be formed on the outer side wall of the diaphragm frame 120 of the basin frame 100, and meanwhile, the first connection portion 222 of the diaphragm folding ring 220 is provided with the buckle 2221, during injection molding, the buckle 2221 extends into the clamping groove to enhance the contact area between the first connection portion 222 and the diaphragm frame 120, thereby improving the connection stability between the first connection portion 222 and the diaphragm frame 120.

The arrangement of the engaging groove and the engaging buckle 2221 can refer to the content of the first connecting portion 222 engaging with the diaphragm frame 120, and will not be described herein again.

Fig. 6 is a schematic structural diagram of a speaker provided in an embodiment of the present application at a first viewing angle, fig. 7 is a schematic structural diagram of the speaker provided in the embodiment of the present application at a second viewing angle, and fig. 8 is a top view of fig. 6. Referring to fig. 6 to 8, in practical applications, when the speaker core 10 is assembled into the cabinet 300 of the speaker 20, the height of the speaker core 10 in the cabinet 300 is required to be a predetermined height, so as to ensure a predetermined distance between the outer surface of the diaphragm 200 on the speaker core 10 and the inner top wall of the cabinet 300. At the preset interval, the diaphragm 200 on the speaker core 10 can perform effective vibration to transmit sound of a certain intensity and a certain tone from the top of the cabinet 300 to the outside of the cabinet 300.

As shown in fig. 7 and 8, in practical applications, a protrusion 320 extends from an inner wall of the cabinet 300 of the speaker 20, and therefore, in the embodiment of the present application, a position-limiting portion 121 (shown in fig. 1) may be provided on the diaphragm frame 120, and when the speaker core 10 is mounted in the cabinet 300 of the speaker 20, the position-limiting portion 121 is configured to cooperate with the protrusion 320 on the inner wall of the cabinet 300 to limit a height of the speaker core 10 in the cabinet 300, that is, to limit a position of the speaker core 10 in the z-axis direction (shown in fig. 6).

The embodiment of the application sets the limiting part 121 on the diaphragm frame 120, so as to limit the height of the speaker core 10 in the box 300 by the mutual matching of the limiting part 121 and the inner wall of the box 300 of the speaker 20, thereby ensuring that the diaphragm 200 on the speaker core 10 can vibrate up and down along the height direction of the box 300.

In addition, the arrangement of the limiting portion 121 plays a role of fast positioning for the assembly of the speaker core 10 in the cabinet 300, for example, the speaker core 10 moves from the bottom of the cabinet 300 to the inner cavity of the cabinet 300, as long as the limiting portion 121 on the speaker core 10 is matched with the protrusion 320 on the inner wall of the cabinet 300, the fast positioning of the speaker core 10 in the inner cavity of the cabinet 300 can be completed, and then the speaker core 10 is fixed on the inner wall of the cabinet 300, so that the assembly efficiency of the speaker core 10 in the cabinet 300 is improved in the whole process.

Specifically, a protrusion (not shown) may be disposed on an outer side wall of the diaphragm frame 120, the protrusion may be used as the limiting portion 121, and when the speaker core 10 is installed in the cabinet 300, the protrusion is matched with the protrusion 320 inside the cabinet 300, for example, the protrusion may abut against a bottom of the protrusion 320, so as to limit a height of the speaker core 10 inside the cabinet 300.

The bottom of the protrusion 320 refers to a side of the protrusion 320 facing the bottom of the case 300.

In order to improve the limiting effect, 2 or more than 2 bumps may be arranged on the outer side wall of the diaphragm frame 120 at intervals along the circumferential direction. For example, when the number of the protrusions is 2, the 2 protrusions may be symmetrically disposed on two sides of the axis of the frame 100, respectively, to ensure the balance of the force of the speaker core 10 in the cabinet 300. For another example, 4 bumps may be uniformly formed on the outer side wall of the diaphragm frame 120 along the circumferential direction, respectively, to further improve the stability of the speaker core 10 in the cabinet 300.

In some examples, at least a part of the top surface of the diaphragm frame 120 may also be configured as a stopper portion 121 (see fig. 1), for example, a part of the outer edge of the diaphragm frame 120 may serve as the stopper portion 121, and when the speaker core 10 is assembled into the cabinet 300, the stopper portion 121 abuts on a side of the protrusion 320 facing the bottom of the cabinet 300.

The embodiment of the present application uses a part of the top surface of the diaphragm frame 120 as the limiting portion 121, so as to ensure that the speaker core 10 of the embodiment of the present application is stably limited to a certain height in the cabinet 300 of the speaker 20, and simplify the structural arrangement of the speaker core 10, thereby improving the manufacturing efficiency of the speaker core 10.

Meanwhile, the limiting part 121 is abutted against one side of the protruding part 320 facing the inside of the box body 300, so that the matching structure between the limiting part 121 and the protruding part 320 is simplified, and the positioning efficiency of the loudspeaker core 10 in the box body 300 is improved.

In practical applications, the cross section of the frame 100 may be a quadrilateral structure (see fig. 1), for example, the frame 100 may be a rectangular parallelepiped structure, so that any cross section of the diaphragm frame 120 at the periphery of the vibration space 110 is a rectangular structure, the top of the frame 100 has four corners, and part of the top surface of each corner is configured as the limiting portion 121.

Based on the arrangement of the four limiting parts 121, the number of the protruding parts 320 in the cabinet 300 may be four, the four protruding parts 320 are matched with the corresponding limiting parts 121, and when the speaker core 10 is assembled in the cabinet 300, the top surfaces of the four corners of the diaphragm frame 120 are all abutted against the bottom of the corresponding protruding parts 320, so as to limit the height of the speaker core 10 in the cabinet 300.

In other examples, the protrusion 320 in the case 300 may be a ring-shaped protrusion disposed around the inner wall of the case 300, and the top surfaces of the four corners of the frame 100 abut against the corresponding positions of the ring-shaped protrusion 320.

The cross section of the frame 100 is set to be a quadrilateral structure, and the top surfaces of the four corners of the quadrilateral structure are used as the limiting parts 121, so that the speaker core 10 is stably assembled at the preset height in the box body 300 of the speaker 20, and the number of the limiting parts 121 is increased due to the structure of the four corners, so that the four corners of the frame 100 can be simultaneously abutted against the protruding parts 320 in the box body 300, and the stability of the frame 100 of the speaker core 10 on one side of the protruding parts 320 is further improved.

It can be understood that, when the annular protrusion 320 is wound on the inner wall of the box 300, the four limiting portions 121 can stably and accurately abut against the bottom surface of the protrusion 320, so as to improve the matching efficiency and stability between the four limiting portions 121 and the bottom surface of the protrusion 320, and avoid the occurrence of the misalignment between the four limiting portions 121 and the protrusion 320 in the horizontal direction.

In practical applications, the bottom surface of the protrusion 320 in the cabinet 300 of the speaker 20 is a planar structure, and the top surface of the corner of the diaphragm frame 120 configured as the limiting portion 121 is also a planar structure.

Based on this, when specifically setting, the portion of the diaphragm edge 220 on the position-limiting part 121 may be configured to be a plane (as shown by a in fig. 2), and the plane a is attached to the surface of the position-limiting part 121. For example, the diaphragm edge 220 located at the top surfaces of the four corners of the diaphragm frame 120 is also set to be a plane a, and the plane a is tightly attached to the top surface of the corner, so that the matching between the limiting portion 121 on the speaker core 10 and the protruding portion 320 is the abutment between the plane and the plane, thereby increasing the contact area between the speaker core 10 and the protruding portion 320, enabling the limiting portion 121 and the diaphragm edge 220 located on the limiting portion 121 to stably abut against the bottom surface of the protruding portion 320, and improving the stability of the speaker core 10 in the box 300.

In addition, the diaphragm folding ring 220 on the limiting part 121 is set to be a plane, so that the diaphragm folding ring 220 can be tightly attached to the limiting part 121, the stability of the diaphragm folding ring 220 on the limiting part 121 is enhanced, and meanwhile, the connection sealing performance between the diaphragm 200 and the basin stand 100 is also improved.

In other examples, the diaphragm edge 220 on the top surface of the corner may also have an arc-shaped structure or an irregular non-planar structure, which is not limited by the embodiment of the present application.

Referring to fig. 6, the present embodiment further provides a speaker 20, which includes a cabinet 300 and a speaker core 10, wherein the speaker core 10 is installed in a core space 310 of the cabinet 300.

The speaker core 10 in any of the above examples can be used as the speaker core 10, and a detailed description of the speaker core 10 is omitted here.

The embodiment of the present application sets up above-mentioned speaker kernel 10 in box 300 of speaker 20, at least part through the arc portion 221 with vibrating diaphragm corrugated rim 220 sets up in the top of vibrating diaphragm frame 120, make the arc portion 221 of vibrating diaphragm corrugated rim 220 make full use of the thickness space of vibrating diaphragm frame 120 of basin frame 100, thus, can be when guaranteeing the width of the arc portion 221 of vibrating diaphragm corrugated rim 220, the increase is located the radial size of vibrating diaphragm bulb 210 of vibrating diaphragm corrugated rim 220 inner edge, thereby not only effective vibration area has been increased, and then promote speaker 20 at the sound pressure level of full frequency band within range, and avoided the width undersize of the arc portion 221 of vibrating diaphragm corrugated rim 220 and lead to the serious condition of nonlinear problem, thereby guarantee that the increase of speaker 20 amplitude is uninhibited, the amplitude maximum value of this speaker 20 has been improved.

Referring to fig. 7 and 8, as described above, the case 300 according to the embodiment of the present invention has the protruding portion 320 extending from the inner side wall thereof, and the speaker core 10 has the position-limiting portion 121 on the side wall thereof, and the position-limiting portion 121 cooperates with the protruding portion 320 to limit the height of the speaker core 10 in the case 300.

The embodiment of the application sets the limiting part 121 on the sidewall of the speaker core 10, so that the limiting part 121 is matched with the inner wall of the box 300 of the speaker 20 to limit the height of the speaker core 10 in the box 300, thereby ensuring that the diaphragm 200 on the speaker core 10 can vibrate up and down along the height direction of the box 300. In addition, the arrangement of the limiting portion 121 plays a role of fast positioning for the assembly of the speaker core 10 in the cabinet 300, for example, the speaker core 10 is moved from the bottom of the cabinet 300 to the inner cavity of the cabinet 300, as long as the limiting portion 121 on the speaker core 10 is matched with the protrusion 320 on the inner wall of the cabinet 300, the fast positioning of the speaker core 10 in the inner cavity of the cabinet 300 can be completed, thereby improving the assembly efficiency of the speaker core 10 in the cabinet 300.

The specific arrangement of the limiting portion 121 can refer to the related contents directly, and is not described herein again.

Fig. 9 is a sectional view taken along line a-a of fig. 8, and fig. 10 is a partial enlarged view taken at I of fig. 9. Referring to fig. 9 and 10, the speaker 20 of the embodiment of the present application may further include a sealing layer 400, and the sealing layer 400 is disposed between an outer sidewall of the speaker core 10 and an inner sidewall of the cabinet 300. For example, a sealing layer 400 is provided between the first connection portion 222 of the speaker core 10 and the inner sidewall of the cabinet 300 to seal the outer sidewall of the speaker core 10 and the inner sidewall of the cabinet 300.

The embodiment of the present application provides the sealing layer 400 between the outer sidewall of the speaker core 10 and the inner sidewall of the cabinet 300 to prevent the sound inside the speaker 20 from leaking from the bottom of the speaker 20, thereby ensuring the sound intensity transmitted from the front of the speaker 20.

Wherein the sealing layer 400 may be a sealing ring fitted over the outside of the speaker core 10. In some examples, the sealing layer 400 may also be a sealant that is poured between the outer sidewalls of the speaker core 10 and the inner sidewalls of the cabinet 300. The composition of the sealant may include, but is not limited to, any one or more of natural resin, natural rubber, or synthetic rubber.

To facilitate the filling of the sealant, a guide groove (not shown) may be formed inward on the inner sidewall of the cabinet 300, and the guide groove is located at a horizontal plane where the top of the speaker core 10 is located, so that the sealant may be introduced from one end of the guide groove to a position between the outer sidewall of the speaker core 10 and the inner sidewall of the cabinet 300 when the sealant is poured, so as to ensure the sealing between the outer sidewall of the speaker core 10 and the inner sidewall of the cabinet 300.

The embodiment of the present application further provides an electronic device, which includes the speaker 20 as described above.

According to the embodiment of the application, the loudspeaker 20 is arranged in the electronic device, the sound pressure level of the loudspeaker 20 in the full frequency band range is improved, and the situation that the nonlinear problem is serious due to the fact that the width of the arc-shaped part 221 of the diaphragm folded ring 220 in the loudspeaker 20 is too small is avoided, so that the amplitude of the loudspeaker 20 is not limited, and the maximum amplitude value of the loudspeaker 20 is improved.

It should be noted that the electronic device according to the embodiment of the present application may include, but is not limited to, a mobile or fixed terminal having a speaker 20, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, an intercom, a netbook, a POS machine, a Personal Digital Assistant (PDA), a wearable device, and a virtual reality device.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Claims (17)

1. A loudspeaker kernel is characterized by comprising a basin frame and a vibrating diaphragm;

the top of the basin frame is provided with a vibrating diaphragm frame in an annular structure, the inner side wall of the vibrating diaphragm frame surrounds a vibrating space, and the vibrating diaphragm cover is arranged at the top of the vibrating diaphragm frame;

the vibrating diaphragm comprises a vibrating diaphragm ball top and a vibrating diaphragm folding ring, the vibrating diaphragm ball top is positioned in a central area of the top opening of the vibrating space, the vibrating diaphragm folding ring is arranged on the outer edge of the vibrating diaphragm ball top in a surrounding mode, and one end of the vibrating diaphragm folding ring is connected with the outer side wall of the vibrating diaphragm frame;

the vibrating diaphragm folding ring is provided with an arc-shaped part, the arc-shaped part comprises a plurality of bending parts, the bending parts are arranged in a surrounding mode along the radial direction of the vibrating diaphragm, and the bending directions of two adjacent bending parts are different;

at least one bending part is arranged above the top of the diaphragm frame in a hanging mode.

2. The loudspeaker core of claim 1 wherein the portion of the arcuate portion above the diaphragm frame curves away from the diaphragm frame.

3. The loudspeaker core of claim 1, wherein the arc portion of the diaphragm edge comprises a first bent portion and a second bent portion, which are sequentially arranged along a radial direction of the diaphragm, and the second bent portion is located between the first bent portion and the top of the diaphragm sphere;

the first bending part bends towards the direction far away from the vibrating diaphragm frame, and the second bending part bends towards the inner cavity of the vibration space;

the first bending part is arranged above the top of the vibrating diaphragm frame in a suspended mode.

4. The speaker core as recited in claim 3, wherein the first bend portion and the second bend portion have an arc of curvature equal and a width equal.

5. The loudspeaker core of any one of claims 1 to 4 wherein the diaphragm edge comprises a first connection portion and a second connection portion, the first connection portion and the second connection portion are connected to the outer edge and the inner edge of the arc portion, respectively, the first connection portion is connected to the outer sidewall of the diaphragm frame, and the second connection portion is connected to the surface of the diaphragm dome.

6. The speaker core as recited in claim 5, wherein the first connection portion is bonded to an outer sidewall of the diaphragm frame and the second connection portion is bonded to a surface of the diaphragm dome.

7. The loudspeaker core as claimed in claim 5, wherein a surface of the first connecting portion facing the outer sidewall of the diaphragm frame is provided with a buckle, a slot matching with the buckle is formed on the outer sidewall of the diaphragm frame, and the buckle is clamped in the slot.

8. The speaker core as recited in claim 7, wherein the clip has a large end and a small end, the small end being connected to the first connection.

9. The loudspeaker core as claimed in any one of claims 1 to 4, wherein the diaphragm frame has a limiting portion for cooperating with a protrusion on an inner wall of a cabinet to limit a height of the loudspeaker core within the cabinet.

10. The loudspeaker core of claim 9 wherein at least a portion of the top surface of the diaphragm frame is configured as the stopper portion, the stopper portion abutting a side of the protrusion toward the cabinet bottom.

11. The speaker core as recited in claim 10, wherein the frame is quadrilateral in cross-section, the top of the frame having four corners, a portion of the top surface of each of the corners being configured as the stop.

12. The loudspeaker core of claim 11, wherein the portion of the diaphragm edge on the position-limiting portion is configured as a flat surface, and the flat surface is attached to a surface of the position-limiting portion.

13. A loudspeaker core as claimed in any one of claims 1 to 4, wherein the width of the arcuate portion of the diaphragm edge is greater than or equal to 0.5mm and less than or equal to 2 mm.

14. A loudspeaker comprising a cabinet and a loudspeaker core as claimed in any one of claims 1 to 13;

the loudspeaker inner core is arranged in the inner core space of the box body.

15. The speaker of claim 14, wherein a protrusion extends from an inner sidewall of the cabinet,

the side wall of the loudspeaker inner core is provided with a limiting part, and the limiting part is matched with the protruding part to limit the height of the loudspeaker inner core in the box body.

16. The loudspeaker of claim 14 or 15, further comprising a sealing layer disposed between an outer sidewall of the loudspeaker core and an inner sidewall of the cabinet.

17. An electronic device, characterized in that it comprises a loudspeaker according to any one of claims 14-16.

Images