CN212936184U

CN212936184U - Loudspeaker

Info

Publication number: CN212936184U
Application number: CN202021328638.5U
Authority: CN
Inventors: 张龙; 杨虎虎; 朱俊杰; 董献杰
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-04-09
Anticipated expiration: 2030-07-08
Also published as: WO2022007003A1

Abstract

The utility model provides a loudspeaker, which comprises a basin frame with an accommodating space, a vibration system accommodated in the accommodating space and a magnetic circuit system for driving the vibration system; the vibration system comprises a vibrating diaphragm for vibrating and sounding; the basin frame comprises a support fixed with the vibration system and the magnetic circuit system and a front cover fixed on the support and surrounding the support to form an accommodating space, a connecting part formed by extending from the surface of one side, far away from the accommodating space, of the front cover to the direction far away from the accommodating space is arranged on the front cover, a connecting hole is formed in the connecting part, and the loudspeaker is fixed with an external element through the connecting hole. The loudspeaker comprises a loudspeaker body, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are accommodated in an accommodating space of a basin frame, the basin frame is composed of a front cover and a support, a connecting part is formed by extending the front cover, a connecting hole is formed in the connecting part, and the loudspeaker can be fixed with an external element through the connecting hole, so that a shell used for being fixed with the front cover is not required to be additionally arranged on the whole machine, the installation space of the whole machine is saved, and the structure is simpler.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a speaker.

[ background of the invention ]

In the current mobile internet era, the number of intelligent mobile terminal devices is increasing continuously, and the requirements for mobile terminals are higher and higher, one of which is the sound quality function requiring high quality.

When a loudspeaker in the related art is fixed to a terminal complete machine, the complete machine needs to be additionally provided with a shell matched with the front cover, the shell is wrapped on the front cover and is fixed with the front cover, the fixing mode is complex, and the space required by installation of the loudspeaker is large.

Therefore, there is a need to provide a new speaker to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker, this loudspeaker's fixed convenience can save installation space for the complete machine.

The technical scheme of the utility model as follows: a loudspeaker comprises a frame with a containing space, a vibration system contained in the containing space and a magnetic circuit system used for driving the vibration system; the vibration system comprises a vibrating diaphragm for vibrating and sounding and a voice coil for driving the vibrating diaphragm to vibrate and sounding; the basin frame comprises a support fixed with the vibration system and the magnetic circuit system and a front cover fixed on the support and enclosing the support to form the accommodating space, the vibration diaphragm is fixed on the support, and the front cover is arranged on one side, far away from the magnetic circuit system, of the vibration diaphragm; the method is characterized in that:

the front cover is provided with a connecting part which is formed by extending from the surface of one side of the front cover, which is far away from the containing space, to the direction of the front cover, wherein the connecting part is provided with a connecting hole, and the loudspeaker is fixed with an external element through the connecting hole.

As an embodiment of the utility model, the protecgulum is including being fixed in the roof of support and certainly the lateral wall that the outer peripheral edge bending and extending of roof formed, the lateral wall with the support interval sets up, connecting portion certainly the lateral wall is kept away from the one end of roof is to keeping away from the direction extension of support forms.

As an embodiment of the present invention, the front cover further includes a bent wall formed by extending the end of the top wall away from the side wall in the direction away from the support, and the connecting portion extends the end of the side wall away from the bent wall in the direction away from the support.

As an embodiment of the present invention, the front cover includes at least two connection portions that are symmetrical about a center of the front cover.

As an embodiment of the present invention, the front cover is made of metal.

As an embodiment of the utility model, the vibrating diaphragm includes the book ring portion, certainly book ring portion outer peripheral edge extends the fixed part that forms and certainly book ring portion inner peripheral edge extends the ball top that forms, the fixed part clamp is established and is fixed in the roof with between the support.

As an embodiment of the utility model, the protecgulum still includes certainly the roof is kept away from fixed part one end extends to the extension wall of vibrating diaphragm top, extend the wall the roof with the vibrating diaphragm encloses to establish and forms the ante-chamber, extend the wall and be the annular and enclose to establish and form the phonate hole, the ante-chamber passes through phonate hole and external intercommunication.

As an embodiment of the utility model, vibration system still include with lower vibrating diaphragm, electric connection that the vibrating diaphragm is relative the flexible circuit board and the conduction of voice coil loudspeaker voice coil the conduction frame of the vibration of voice coil loudspeaker voice coil, flexible circuit board is fixed in on the support and with the vibrating diaphragm is relative and the interval sets up, the vibrating diaphragm is fixed in down flexible circuit board keeps away from on one side of vibrating diaphragm.

As an embodiment of the present invention, the magnetic circuit system includes a magnetic yoke, a main magnetic steel disposed in the center of the magnetic yoke, an auxiliary magnetic steel disposed on the magnetic yoke and surrounding the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel, and an auxiliary pole core surrounding the main pole core, attached to the auxiliary magnetic steel, and fixed on the support, wherein the voice coil is suspended in the magnetic gap through the conduction frame;

one end of the support, which is far away from the front cover, is provided with an opening, and the magnet yoke is fixed on the support and covers the opening.

The beneficial effects of the utility model reside in that: the loudspeaker comprises a loudspeaker body, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are accommodated in an accommodating space of a basin frame, the basin frame is composed of a front cover and a support, a connecting part is formed by extending the front cover, a connecting hole is formed in the connecting part, and the loudspeaker can be fixed with an external element through the connecting hole, so that a shell used for being fixed with the front cover is not required to be additionally arranged on the whole machine, the installation space of the whole machine is saved, and the structure is simpler.

[ description of the drawings ]

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

FIG. 2 is an exploded view of FIG. 1;

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

FIG. 4 is a schematic structural view of the front cover of FIG. 1;

FIG. 5 is a schematic structural diagram of the diaphragm in FIG. 1;

FIG. 6 is a schematic view of the structure of the conductive frame of FIG. 1;

in the figure: 100. a basin stand; 101. an accommodating space; 102. a front cavity; 103. a sound outlet; 110. a support; 120. a front cover; 121. a top wall; 122. a side wall; 123. bending the wall; 124. an extension wall; 130. a connecting portion; 1301. connecting holes; 200. a vibration system; 210. vibrating diaphragm; 211. a folded ring part; 212. a fixed part; 213. a ball top; 220. a lower diaphragm; 230. a voice coil; 240. a flexible circuit board; 250. a conductive frame; 251. a support portion; 252. a first conductive part; 253. a second conductive part; 300. a magnetic circuit system; 310. a magnetic yoke; 320. main magnetic steel; 330. a secondary magnetic steel; 340. a main pole core; 350. and a secondary pole core.

[ detailed description ] embodiments

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

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

Referring to fig. 1 to 5, an embodiment of the present invention provides a speaker, which includes a frame 100 having an accommodating space 101, a vibration system 200 accommodated in the accommodating space 101, and a magnetic circuit system 300 for driving the vibration system 200.

Referring to fig. 1 to 3, the frame 100 in this embodiment includes a support 110 for fixing the vibration system 200 and the magnetic circuit system 300, and a front cover 120 covering the magnetic circuit system 300 and fixed on the support 110, where the front cover 120 and the support 110 enclose to form the accommodating space 101, and specifically, the vibration system 200 includes a diaphragm 210 for vibrating and generating sound, the diaphragm 210 is fixed on the support 110, and the front cover 120 is disposed on a side of the diaphragm 210 away from the magnetic circuit system 300; preferably, the bracket 110 and the front cover 120 are detachably connected, for example, by a bolt connection or a snap connection, so as to facilitate the maintenance of the speaker, and of course, the bracket 110 and the front cover 120 may also be fixed by ultrasonic welding or gluing.

Referring to fig. 1 to 4, in the present embodiment, the front cover 120 is provided with a connecting portion 130 extending from a surface of the front cover 120 on a side away from the accommodating space 101 to a direction away from the accommodating space 101, the connecting portion 130 is provided with a connecting hole 1301, and the speaker is fixed to an external component through the connecting hole 1301. Specifically, the connection portion 130 is provided with the connection hole 1301, and the front cover 120 is fixed to the terminal overall unit through the connection hole 1301, so that a housing for fixing the front cover 120 does not need to be additionally arranged, the installation space of the overall unit is saved, and the structure is simpler.

The connection hole 1301 in this embodiment is a screw hole for inserting a bolt or a screw, and the front cover 120 is fixed to the entire machine by the bolt or the screw, so that it is convenient to detach from the entire machine for replacement or maintenance. It should be noted that the connection hole 1301 may or may not be provided with an internal thread.

Referring to fig. 3, the front cover 120 in this embodiment includes a top wall 121 fixed to the bracket 110 and a side wall 122 extending perpendicularly from an outer periphery of the top wall 121, the side wall 122 is spaced apart from the bracket 110, and the connecting portion 130 extends from one end of the side wall 122 away from the top wall 121 to a direction away from the bracket 110. It should be noted that in some embodiments, the connection hole 1301 may also be opened on the side wall 122.

Referring to fig. 4, the front cover 120 of the present embodiment further includes a bent wall 123 extending from one end of the side wall 122 away from the top wall 121 to a direction away from the bracket 110, and the connecting portion 130 extends from one end of the bent wall 123 away from the side wall 122 to a direction away from the bracket 110.

The front cover 120 and the connecting portion 130 in this embodiment are integrally formed. The front cover 120 and the connecting portion 130 are integrally formed, so that the front cover 120 can be more conveniently produced, and the connecting strength between the front cover 120 and the connecting portion 130 is higher.

Referring to fig. 4, the front cover 120 of the present embodiment at least includes two connecting portions 130 symmetrical with respect to the center of the front cover 120. The front cover 120 can be more firmly fixed to the whole machine by at least two connecting portions 130 symmetrical with respect to the center of the front cover 120.

The front cover 120 in this embodiment is made of metal, such as aluminum, iron, copper, silver, or other metals. Of course, the front cover 120 may also be made of some hard materials, such as silicon and its compound.

Referring to fig. 2 and fig. 3, the vibration system 200 in this embodiment further includes a lower diaphragm 220 opposite to the diaphragm 210, a voice coil 230 driving the diaphragm 210 to vibrate, a flexible circuit board 240 electrically connected to the voice coil 230, and a conducting frame 250 conducting the vibration of the voice coil 230, the flexible circuit board 240 is fixed on the support 110 and is opposite to the diaphragm 210 and is disposed at an interval, the lower diaphragm 220 is fixed on a side of the flexible circuit board 240 away from the diaphragm 210, the voice coil 230 is suspended on the magnetic circuit system 300, and the conducting frame 250 abuts against the diaphragm 210, the voice coil 230, and the flexible circuit board 240, respectively.

Referring to fig. 6, the conductive frame 250 in this embodiment includes a supporting portion 251 mounted on the voice coil 230, a first conductive portion 252 formed by extending from the supporting portion 251 toward the diaphragm 210, and a second conductive portion 253 formed by extending from the supporting portion 251 toward the flexible circuit board 240, wherein the first conductive portion 252 abuts against the diaphragm 210, and the second conductive portion 253 abuts against the flexible circuit board 240.

Referring to fig. 4, the diaphragm 210 in this embodiment includes a ring-folded portion 211, a fixing portion 212 formed by extending from an outer periphery of the ring-folded portion 211, and a dome portion 213 formed by extending from an inner periphery of the ring-folded portion 211, and the fixing portion 212 is sandwiched and fixed between the top wall 121 and the support 110.

Referring to fig. 4, the front cover 120 in this embodiment further includes an extension wall 124 extending from one end of the top wall 121 away from the fixing portion 212 to a position above the diaphragm 210, the extension wall 124, the top wall 121 and the diaphragm 210 are enclosed to form a front cavity 102, the extension wall 124 is annular and encloses to form a sound outlet 103, and the front cavity 102 is communicated with the outside through the sound outlet 103.

Referring to fig. 2 and 3, the magnetic circuit system 300 in this embodiment includes a magnetic yoke 310, a main magnetic steel 320 disposed in the center of the magnetic yoke 310, an auxiliary magnetic steel 330 disposed on the magnetic yoke 310 and surrounding the main magnetic steel 320 to form a magnetic gap, a main pole core 340 attached above the main magnetic steel 320, and an auxiliary pole core 350 surrounding the main pole core 340, attached to the auxiliary magnetic steel 330, and fixed on the support 110, wherein the voice coil 230 is suspended in the magnetic gap through a conductive frame 250, specifically, the voice coil 230 is sleeved on the main magnetic steel 320, and the side wall 122 of the voice coil 230 is located between the main magnetic steel 320 and the auxiliary magnetic steel 330. Specifically, the number of the secondary magnetic steels 330 is two, the two secondary magnetic steels 330 are symmetrically arranged about the long side of the primary magnetic steel 320, and the two long sides of the voice coil 230 are respectively inserted into the magnetic gaps formed by the two secondary magnetic steels 330 and the primary magnetic steel 320.

Referring to fig. 2, in the present embodiment, the auxiliary pole core 350 is annular, one end of the auxiliary pole core 350 away from the auxiliary magnetic steel 330 abuts against the bracket 110, so that the auxiliary pole core 350 is stably fixed, the flexible circuit board 240 is fixed on the auxiliary pole core 350, specifically, ultrasonically welded or glued, and the lower diaphragm 220 is ultrasonically welded or glued and fixed on the flexible circuit board 240, wherein the diaphragm 210 and the lower diaphragm 220 are respectively located at two sides of the flexible circuit board 240.

Referring to fig. 2, an end of the bracket 110 facing away from the front cover 120 in the present embodiment has an opening, and the magnetic yoke 310 is fixed on the bracket 110 and covers the opening.

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

Claims

1. A loudspeaker comprises a frame with a containing space, a vibration system contained in the containing space and a magnetic circuit system used for driving the vibration system; the vibration system comprises a vibrating diaphragm for vibrating and sounding and a voice coil for driving the vibrating diaphragm to vibrate and sounding; the basin frame comprises a support fixed with the vibration system and the magnetic circuit system and a front cover fixed on the support and enclosing the support to form the accommodating space, the vibration diaphragm is fixed on the support, and the front cover is arranged on one side, far away from the magnetic circuit system, of the vibration diaphragm; the method is characterized in that:

2. The loudspeaker of claim 1, wherein: the front cover comprises a top wall fixed on the support and a side wall formed by bending and extending the outer periphery of the top wall, the side wall and the support are arranged at intervals, and the connecting part is formed by extending from one end, away from the top wall, of the side wall to the direction away from the support.

3. The loudspeaker of claim 1, wherein: the front cover comprises a top wall fixed on the support and a side wall bent and extended along the vertical vibration direction from the outer peripheral edge of the top wall, the side wall and the support are arranged at intervals, and the connecting portion is formed by extending in the direction away from the support from one end, away from the top wall, of the side wall.

4. A loudspeaker according to claim 3, wherein: the front cover further comprises a bent wall formed by extending from one end, far away from the top wall, of the side wall to the direction far away from the support, and the connecting part is formed by extending from one end, far away from the side wall, of the bent wall to the direction far away from the support.

5. The loudspeaker of claim 1, wherein: the front cover includes at least two connection parts symmetrical with respect to a center of the front cover.

6. The loudspeaker of claim 1, wherein: the front cover is made of metal.

7. The loudspeaker of claim 4, wherein: the vibrating diaphragm comprises a folded ring part, a fixing part formed by extending the outer periphery of the folded ring part and a ball top part formed by extending the inner periphery of the folded ring part, and the fixing part is clamped and fixed between the top wall and the support.

8. The loudspeaker of claim 7, wherein: the protecgulum still includes certainly the roof is kept away from fixed part one end extends to the extension wall of vibrating diaphragm top, extend the wall the roof with the vibrating diaphragm encloses establishes and forms the ante-chamber, extend the wall and be the annular and enclose and establish and form the phonate hole, the ante-chamber passes through phonate hole and external intercommunication.

9. The loudspeaker of claim 8, wherein: the vibration system further comprises a lower vibrating diaphragm opposite to the vibrating diaphragm, an electric connection, a flexible circuit board of the voice coil and a conduction frame for conducting vibration of the voice coil, wherein the flexible circuit board is fixed on the support and is opposite to the vibrating diaphragm and arranged at intervals, and the lower vibrating diaphragm is fixed on one side, away from the vibrating diaphragm, of the flexible circuit board.

10. The loudspeaker of claim 9, wherein: the magnetic circuit system comprises a magnetic yoke, main magnetic steel arranged in the center of the magnetic yoke, auxiliary magnetic steel arranged on the magnetic yoke and surrounding the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel and an auxiliary pole core surrounding the main pole core, attached to the auxiliary magnetic steel and fixed on the bracket, wherein the voice coil is suspended in the magnetic gap through the conduction frame;