CN211531303U - Loudspeaker - Google Patents

Abstract

The utility model provides a loudspeaker, including the basin frame that has accommodating space and accept magnetic circuit and the vibration system in accommodating space, magnetic circuit is including the magnetic bowl that is fixed in the basin frame, vibration system is including being fixed in the last sound membrane that the basin frame is used for the vibration sound production, go up the sound membrane including the dome that is located the position in the middle and encircle the dome and be fixed in the book ring of basin frame, book ring include with dome fixed connection's first annular tip, the dome is fixed in one side of first annular tip orientation accommodating space, vibration system still includes from the dome edge to the first skeleton of the interior extension of buckling of accommodating space and with the lower sound membrane that last sound membrane interval set up, lower sound membrane is the annular, lower sound membrane has and is connected with first skeleton and suspends the third annular tip on the basin frame in the second annular tip of accommodating space and be fixed in. In the embodiment, the first framework and the dome of the loudspeaker are integrally formed, so that the number of parts of the loudspeaker can be reduced, and the manufacturing cost of the loudspeaker is reduced.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic component technical field especially relates to a loudspeaker.

[ background of the invention ]

The loudspeaker in the prior art comprises a magnetic circuit system consisting of a magnetic bowl, magnetic steel and a pole core, and a vibration system consisting of a voice coil, an outer framework, an inner framework, an upper sound membrane and a lower sound membrane, wherein the upper sound membrane comprises a dome.

Thus, the number of parts of the speaker is increased, and the number of assembling processes of the speaker is increased, which results in an increase in the cost of the speaker.

Therefore, it is necessary to provide a new speaker to solve the above problems.

[ summary of the invention ]

An object of the utility model is to provide a speaker with low costs.

The technical scheme of the utility model as follows:

in order to achieve the above object, the utility model provides a loudspeaker, including the basin frame that has accommodating space and accept in magnetic circuit and vibration system in the accommodating space, magnetic circuit is including being fixed in the magnetism bowl of basin frame, vibration system is including being fixed in the basin frame is used for vibrating the last sound membrane of sound production, go up the sound membrane including the dome and the encirclement that are located the position in the middle the dome is fixed in the book ring of basin frame, book ring include with dome fixed connection's first annular tip, the dome is fixed in first annular tip orientation one side of accommodating space, vibration system still include certainly the dome edge to buckle the first skeleton of extension in the accommodating space and with go up the lower sound membrane that sound membrane interval set up, the sound membrane is the annular down, the sound membrane have with first skeleton connection and suspension in second annular tip in the accommodating space and be fixed in the sound membrane A third annular end portion on the frame.

As an improved mode, the folding ring further comprises a fourth annular end connected with the frame and a first folding ring part connecting the first annular end and the fourth annular end, and the first folding ring part is recessed towards the direction far away from the lower sound diaphragm.

As a refinement, the outer diameter of the ball top is greater than the inner diameter of the first annular end portion and less than the outer diameter of the first annular end portion.

As a refinement, the lower sound diaphragm further has a second flange portion connecting the second annular end portion and the third annular end portion, and a concave direction of the second flange portion is opposite to a concave direction of the first flange portion.

As an improvement, the vibration system further comprises a voice coil and a second framework, the magnetic circuit system further comprises magnetic steel located in the magnetic bowl, a magnetic gap is arranged in the magnetic circuit system, the magnetic gap is formed between the magnetic steel and the magnetic bowl, the voice coil is located in the magnetic gap, one end of the second framework is connected with the ball top, and the voice coil is suspended in the magnetic gap by the other end of the second framework.

As an improved mode, the second framework comprises a first annular frame connected with the voice coil, a second annular frame located outside the magnetic bowl and connected with the upper sound film, and a plurality of connecting rods arranged at intervals, wherein one end of each connecting rod is connected with the first annular frame, and the other end of each connecting rod is connected with the second annular frame.

As an improvement mode, the magnetic bowl comprises a top plate, a bottom plate and an annular side plate for connecting the top plate and the bottom plate, the magnetic bowl is provided with an accommodating space and a plurality of through holes, the accommodating space and the through holes are formed by enclosing the top plate, the bottom plate and the annular side plate, the accommodating space is communicated with the through holes, the top plate and the annular side plate sequentially penetrate through the through holes from one side of the top plate to one side of the bottom plate, the voice coil, the magnetic steel and the second annular frame are located in the accommodating space, one end of the connecting rod is connected with the first annular frame, and the other end of the connecting rod penetrates through the through holes and then is.

As an improvement mode, the basin frame comprises a bearing plate located in the middle and a surrounding plate extending from the edge of the bearing plate towards the upper sound film in a bending mode, the surrounding plate and the bearing plate are surrounded to form the accommodating space, an annular step is convexly arranged on one side, facing the accommodating space, of the bearing plate, and the third annular end portion is fixed on the annular step.

As an improvement, a boss located in the annular step is further convexly arranged on one side of the bearing plate facing the accommodating space, the boss is provided with an accommodating cavity which penetrates through the boss along a direction perpendicular to the vibration direction of the loudspeaker, and the magnetic bowl is accommodated in the accommodating cavity.

As an improvement mode, the boss is further provided with a plurality of avoidance holes which are arranged at intervals and communicated with the containing cavity, and the avoidance holes are arranged corresponding to the through holes.

As an improvement, the vibration system further includes an annular gasket interposed between the first frame and the lower diaphragm.

The utility model has the advantages that:

compared with the prior art, the utility model provides a dome is integrated into one piece in the first skeleton of speaker and the last sound membrane, and like this, the spare part quantity of reducible speaker optimizes the assembly process of speaker to reduce the cost of manufacture of speaker.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of the speaker of the present invention;

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

FIG. 3 is a partially enlarged view of B in FIG. 2;

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

fig. 5 is a second exploded view of the speaker of the present invention;

FIG. 6 is a schematic structural view of the basin stand of the present invention;

fig. 7 is a schematic structural view of the upper sound film of the present invention;

fig. 8 is a schematic structural diagram of the lower sound diaphragm of the present invention.

Reference numerals:

10. a basin stand; 11. an accommodating space; 12. a carrier plate; 121. an annular step; 122. a boss; 123. an accommodating chamber; 124. avoiding holes; 13. enclosing plates; 131. a sound outlet; 20. a magnetic circuit system; 21. a magnetic bowl; 211. a top plate; 212. a base plate; 213. an annular side plate; 214. an accommodating space; 215. perforating; 216. an upper frame body; 217. a lower frame body; 218. a protrusion; 22. magnetic steel; 23. a pole piece; 24. a magnetic gap; 30. a vibration system; 31. an upper sound film; 311. a ball top; 312. folding the ring; 313. a first annular end portion; 314. a fourth annular end portion; 315. a first hinge part; 32. a lower sound film; 321. a second annular end portion; 322. a third annular end portion; 323. a second flange part; 33. a voice coil; 34. a first skeleton; 35. a second skeleton; 351. a first annular frame; 352. a second annular frame; 353. a connecting rod; 36. an annular gasket.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a speaker, which includes a frame 10, a magnetic circuit system 20 and a vibration system 30, wherein the frame 10 has an accommodating space 11, and the magnetic circuit system 20 and the vibration system 30 are accommodated in the accommodating space 11.

Referring to fig. 6, in detail, the basin stand 10 includes a supporting plate 12 located at a middle position and a surrounding plate 13 extending from an edge of the supporting plate 12 to a side of the upper sound film 31 in the vibration system 30, the surrounding plate 13 and the supporting plate 12 surround to form the receiving space 11, an annular step 121 and a boss 122 located at a middle portion of the supporting plate 12 and located in the annular step 121 are protruded at a side of the supporting plate 12 facing the receiving space 11, and the boss 122 is spaced from the annular step 121.

The magnetic circuit system 20 comprises a magnetic bowl 21, magnetic steel 22 and a pole core 23, the magnetic bowl 21 is fixed on the frame 10, specifically, the boss 122 has a containing cavity 123 penetrating through two end faces of the boss 122 along the vibration direction, and the magnetic bowl 21 is contained in the containing cavity 123 to complete the fixation of the magnetic bowl 21. And the magnetic steel 22 and the pole core 23 are both positioned in the magnetic bowl 21, a magnetic gap 24 is arranged in the magnetic circuit system 20, and the magnetic steel 22 and the magnetic bowl 21 are arranged at intervals to form the magnetic gap 24.

Referring to fig. 4 and 7, the vibration system 30 includes an upper sound film 31, a lower sound film 32, a voice coil 33, a first frame 34 and a second frame 35, wherein the upper sound film 31 is fixed on the frame 10 for generating sound by vibration, the upper sound film 31 includes a dome 311 at a middle position and a folded ring 312 surrounding the dome 311 and fixed on the frame 10, the folded ring 312 has a ring structure, the folded ring 312 includes a first ring end 313 fixedly connected to the dome 311, a fourth ring end 314 connected to the frame 10 and a first folded ring portion 315 connecting the first ring end 313 and the fourth ring end 314, the first folded ring portion 315 is recessed toward the lower sound film 32, the dome 311 is fixed on a side of the first ring end 313 facing the receiving space 11, where the first ring end 313 and the fourth ring end 314 may have various shapes, such as a ring plane or a step-like, the first and fourth annular ends 313, 314 in this embodiment are preferably flat, which further facilitates a secure connection.

The outer diameter of the ball top 311 is larger than the inner diameter of the first annular end 313, the outer diameter of the ball top 311 is smaller than the outer diameter of the first annular end 313, and the outer edge of the ball top 311 abuts against the first annular end 313, so that the ball top 311 is fixed on the side of the first annular end 313 close to the magnetic circuit system 20.

Referring to fig. 6 and 8, the lower sound diaphragm 32 and the upper sound diaphragm 31 are spaced apart from each other, the lower sound diaphragm 32 is annular, the lower sound diaphragm 32 has a second annular end 321 connected to the first frame 34 and suspended in the accommodating space 11, a third annular end 322 fixed to the frame 10, and a second annular flange 323 connecting the second annular end 321 and the third annular end 322, a recess direction of the second annular flange 323 is opposite to a recess direction of the first annular flange 315, an inner diameter of the third annular end 322 is larger than an outer diameter of the second annular end 321, and the third annular end 322 is fixed to the annular step 121.

The first frame 34 is bent and extended from the edge of the dome 311 into the receiving space 11, and the first frame 34 is disposed between the upper sound film 31 and the lower sound film 32 and integrally formed with the dome 311, so that the number of parts of the speaker can be reduced, the assembly process of the speaker is optimized, and the manufacturing cost of the speaker is reduced. Moreover, the upper sound film 31 and the lower sound film 32 are symmetrically arranged at the two ends of the first framework 34, so that the horizontal swinging of the loudspeaker in the use process can be restrained, and the swinging phenomenon of the loudspeaker can be effectively restrained.

Referring to fig. 2 to 5, the voice coil 33 is located in the magnetic gap 24, the magnetic bowl 21 includes a top plate 211 close to the upper voice diaphragm 31, a bottom plate 212 fixedly connected to the magnetic steel 22, and an annular side plate 213 connecting the top plate 211 and the bottom plate 212, the magnetic bowl 21 has an accommodating space 214 enclosed by the top plate 211, the bottom plate 212, and the annular side plate 213, and a plurality of through holes 215 sequentially penetrating through the top plate 211 and the annular side plate 213 from one side of the top plate 211 to one side of the bottom plate 212 and communicating with the accommodating space 214, and the voice coil 33, the magnetic steel 22, and the pole core 23 are all located in the accommodating space 214.

In this embodiment, the number of the magnetic steels 22 is two, the pole core 23 and the two magnetic steels 22 are stacked in the magnetic bowl 21, and the pole core 23 is located between the two magnetic steels 22, this setting mode has an effect of increasing the magnetic field of the magnetic gap 24, the voice coil 33 is located in the magnetic bowl 21 and is sleeved outside the magnetic steels 22 and the pole core 23, one end of the second bobbin 35 is connected with the dome 311 of the upper voice diaphragm 31, preferably, the second annular frame 352 is bonded to the upper voice diaphragm 31, the other end of the second bobbin 35 passes through the through hole 215 and suspends the voice coil 33 in the magnetic gap 24, and the second bobbin 35 can move along the vibration direction perpendicular to the speaker relative to the magnetic bowl 21 under the driving of the voice coil 33, so that the voice coil 33 can generate an alternating driving force in the magnetic circuit system 20 through the second bobbin 35.

In a preferred embodiment, the second bobbin 35 includes a first annular frame 351 located in the accommodating space 214 and connected to the voice coil 33, a second annular frame 352 located outside the magnetic bowl 21 and connected to the upper voice diaphragm 31, and a plurality of connecting rods 353 arranged at intervals, wherein one end of each connecting rod 353 is connected to the first annular frame 351, and the other end of each connecting rod 353 passes through the through hole 215 and then is connected to the second annular frame 352.

In this embodiment, the magnetic bowl 21 includes an upper frame 216 and a lower frame 217 fixed to the upper frame 216, the upper frame 216 and the lower frame 217 enclose the accommodating space 214, the through hole 215 extends from the top of the upper frame 216 toward the bottom of the lower frame 217 along the axial direction of the magnetic bowl 21, the second bobbin 35 is made of a flexible material, and when the magnetic bowl is specifically installed, the upper frame 216 can be firstly extruded into the second bobbin 35 along the gap between the two connecting rods 353, and then the voice coil 33 is fixed in the magnetic bowl 21.

In a preferred embodiment, the top plate 211 and the bottom plate 212 are provided with protrusions 218 protruding from both sides facing the top plate 211, and the two protrusions 218 abut against the two magnetic steels 22, respectively, so as to prevent the magnetic steels 22 and the pole core 23 from shaking relative to the magnetic bowl 21 during the operation of the speaker.

In a preferred embodiment, the boss 122 further has a plurality of avoiding holes 124 spaced apart from each other and communicating with the accommodating cavity 123, and the avoiding holes 124 are disposed corresponding to the through holes 215 to avoid the collision between the second frame 35 and the boss 122.

In order to make the connection between the first bobbin 34 and the lower sound film 32 more stable, the vibration system 30 further includes an annular spacer 36 interposed between the first bobbin 34 and the lower sound film 32.

Referring to fig. 2 to 6, in the present embodiment, a plurality of sound holes 131 are formed through the enclosure 13 of the frame 10, when the voice coil 33 is energized with an alternating current, the voice coil 33 is subject to an alternating driving force under the action of the magnetic field of the magnetic circuit system 20 to generate an alternating motion, so that the second frame 35 drives the upper diaphragm 31 to vibrate together, and since the first frame 34 and the dome 311 of the upper diaphragm 31 are integrally formed, the upper diaphragm 31 drives the first frame 34 to vibrate, and indirectly drives the lower diaphragm 32 to vibrate, thereby generating sound.

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 (11)

1. The utility model provides a loudspeaker, including the basin frame that has accommodating space and accept in magnetic circuit and vibration system in the accommodating space, magnetic circuit is including being fixed in the magnetism bowl of basin frame, vibration system is including being fixed in the basin frame is used for vibrating the last sound membrane of sound production, its characterized in that: go up the sound membrane including the dome that is located the position in the middle and encircle the dome is fixed in the ring of rolling over of basin frame, roll over the ring include with dome fixed connection's first annular tip, the dome is fixed in first annular tip orientation one side of accommodating space, vibration system still includes certainly the dome edge to buckle the first skeleton that extends in the accommodating space and with go up the lower sound membrane that the sound membrane interval set up, the sound membrane is the annular down, down the sound membrane have with first skeleton is connected and is suspended in second annular tip in the accommodating space and is fixed in third annular tip on the basin frame.

2. The loudspeaker of claim 1, wherein: the folding ring further comprises a fourth annular end part connected with the basin frame and a first folding ring part connected with the first annular end part and the fourth annular end part, and the first folding ring part faces away from the lower sound diaphragm and is sunken.

3. The loudspeaker of claim 2, wherein: the outer diameter of the dome is greater than the inner diameter of the first annular end portion and less than the outer diameter of the first annular end portion.

4. The loudspeaker of claim 2, wherein: the lower sound film is also provided with a second flange part connecting the second annular end part and the third annular end part, and the concave direction of the second flange part is opposite to the concave direction of the first flange part.

5. The loudspeaker of claim 1, wherein: the vibration system further comprises a voice coil and a second framework, the magnetic circuit system further comprises magnetic steel which is positioned in the magnetic bowl and forms a magnetic gap with the magnetic bowl at intervals, one end of the second framework is connected with the ball top, and the voice coil is suspended in the magnetic gap at the other end of the second framework.

6. The loudspeaker of claim 5, wherein: the second skeleton include with first annular frame that the voice coil loudspeaker voice coil is connected, with go up sound membrane fixed connection's second annular frame and the connecting rod that a plurality of interval set up, the one end of connecting rod with first annular frame is connected, the other end with the second annular frame is connected.

7. The loudspeaker of claim 6, wherein: the magnetic bowl comprises a top plate close to the upper sound film, a bottom plate fixedly connected with the magnetic steel and an annular side plate connected with the top plate and the bottom plate, the magnetic bowl is provided with an accommodating space and a plurality of sides, the accommodating space and the plurality of sides are formed by enclosing the top plate, the bottom plate and the annular side plate, the top plate and the annular side plate sequentially penetrate through one side of the bottom plate, the annular side plate is communicated with the accommodating space, one end of the connecting rod is connected with the first annular frame, and the other end of the connecting rod penetrates through the second annular frame after the through hole.

8. The loudspeaker of claim 7, wherein: the basin frame is including the loading board that is located the intermediate position and certainly loading board edge court go up the bounding wall that the sound membrane buckled and extends, the bounding wall with the loading board encloses to close and forms accommodating space, the orientation of loading board one side of accommodating space is protruding to be equipped with annular step, third annular tip is fixed in on the annular step.

9. The loudspeaker of claim 8, wherein: the bearing plate is characterized in that a boss located in the annular step is further arranged on one side, facing the containing space, of the bearing plate in a protruding mode, the boss is provided with a containing cavity which penetrates through the boss in the vibration direction, and the magnetic bowl is contained in the containing cavity.

10. The loudspeaker of claim 9, wherein: the boss is provided with a plurality of avoidance holes which are arranged at intervals and communicated with the containing cavity, and the avoidance holes are arranged corresponding to the through holes.

11. The loudspeaker of claim 1, wherein: the vibration system further comprises an annular gasket clamped between the first framework and the lower sound film.

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