CN211531311U - Loudspeaker - Google Patents

Abstract

The utility model provides a loudspeaker, including having the basin frame of acceping the chamber and accept magnetic circuit and the vibration system in acceping the intracavity, vibration system is including being fixed in the last sound membrane of basin frame in order to be used for the vibration sound production, vibration system still includes the skeleton of being connected with last sound membrane, locate the lower sound membrane of skeleton both sides respectively and press from both sides the current conducting plate of locating between skeleton and the lower sound membrane with last sound membrane, lower sound membrane has the first annular tip that is fixed in on the basin frame and is connected and the suspension in the second annular tip of acceping the intracavity with the current conducting plate, the current conducting plate is including installing the support arm between second annular tip and skeleton, the elastic force arm that extends outside from the support arm and extend and be fixed in the fixed arm on the basin frame from the elastic force arm outside, the elastic force arm is located the sound membrane outside. In the embodiment, the elastic arm is arranged outside the lower sound film, and when the amplitude of the loudspeaker is larger, the elastic arm and the lower sound film are staggered in the height direction, so that the elastic arm and the lower sound film cannot interfere.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic component's technical field of structure especially relates to a speaker.

[ background of the invention ]

With the rapid development of mobile communication technology in recent years, consumers increasingly use mobile communication devices with voice functions, such as portable phones, handheld game consoles, portable computers, multimedia players and other devices capable of communicating over public or private communication networks. The loudspeaker is used as a voice playing device, and the performance of the loudspeaker is directly influenced by the design of the loudspeaker.

The loudspeaker includes the basin frame, accept in the magnetic circuit of basin frame, receive the sound membrane of magnetic circuit drive and vibration and the current conducting plate of being connected with the magnetic circuit electricity, the current conducting plate is equipped with the support arm that links to each other with magnetic circuit or sound membrane and the elastic arm that extends from the side of support arm and extends and the fixed arm of being connected with the basin frame from the elastic arm, but the elastic arm all sets up in the sound membrane down, do not interfere in order to guarantee the vibration process, it is very high that the ring height need be done to the sound membrane book down, thereby make the high increase of speaker monomer.

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 can not cause the speaker of interference to lower sound membrane when the elastic arm vibrates.

The technical scheme of the utility model as follows:

in order to achieve the above object, the present invention provides a speaker, comprising a frame having a cavity, and a magnetic circuit system and a vibration system accommodated in the cavity, wherein the vibration system comprises an upper sound film fixed on the frame for vibrating sound production, the vibration system further comprises a frame connected with the upper sound film, a lower sound film and a conductive plate clamped between the frame and the lower sound film, the lower sound film is annular, the lower sound film has a first annular end fixed on the frame and a second annular end connected with the conductive plate and suspended in the cavity, the conductive plate comprises a support arm installed between the second annular end and the frame, an elastic force arm extending from the support arm to the outer force arm, and a fixed arm extending from the elastic force to the outer side and fixed on the frame, the elastic arm is positioned on the outer side of the lower voice diaphragm and suspended in the accommodating cavity.

As an improvement, the basin stand comprises a bottom plate, a side plate bending and extending from the edge of the bottom plate to one side of the upper sound film, and a first annular plate bending and extending from the outer edge of the side plate to one side far away from the magnetic circuit system, the bottom plate, the side plate and the first annular plate are enclosed to form the accommodating cavity, an annular boss is convexly arranged on one side of the bottom plate facing the upper sound film, the first annular end is mounted on the annular boss, and the upper sound film is mounted on one side of the first annular plate far away from the bottom plate.

As an improvement, the lower sound diaphragm further includes a folded ring portion connecting the first annular end portion and the second annular end portion, and an inner diameter of the first annular end portion is larger than an outer diameter of the second annular end portion.

As an improvement mode, the support arm includes annular support arm and extension arm, the annular support arm is located the skeleton with between the second annular tip, the one end of extension arm with the annular support arm is connected, the other end with the elastic arm is connected, just the extension arm suspension in first annular tip with roll over ring portion top.

As an improvement mode, the extension arm includes two and sets up side by side and all with the first bracing piece that annular support arm is connected, the elastic force arm is the elastic component of two symmetries settings, the fixed arm be two symmetries settings and all with the fixed subassembly that the basin frame is connected, elastic component's one end with first bracing piece is connected, the other end with fixed subassembly is connected.

As an improvement mode, the elastic component comprises an arc-shaped connecting rod, a first arc-shaped rod connected with the first supporting rod, and a second arc-shaped rod arranged at an interval with the first arc-shaped rod and connected with the fixing component, one end of the arc-shaped connecting rod is connected with the first arc-shaped rod, and the other end of the arc-shaped connecting rod is connected with the second arc-shaped rod.

As an improvement mode, a first through hole communicated with the accommodating cavity is arranged on the side plate in a penetrating mode, an accommodating cavity and a communicating groove extending from the accommodating cavity to the first through hole are arranged on one side, away from the upper sound membrane, of the first annular plate, and the fixing component comprises a second supporting rod, a third supporting rod and a fixing piece, wherein the second supporting rod is connected with the elastic component and penetrates through the first through hole, the third supporting rod is vertically connected with the second supporting rod and accommodated in the communicating groove, and the fixing piece is connected with the third supporting rod and fixed in the accommodating cavity.

As an improvement mode, the number of the elastic arms, the fixed arms and the extension arms is two, and the two elastic arms, the two fixed arms and the two extension arms are respectively arranged on two sides of the annular support arm.

As an improvement, a convex seat is further convexly arranged on one side of the bottom plate facing the upper sound film, the convex seat is positioned in the annular boss, and the convex seat is provided with a containing groove and a plurality of second through holes communicated with the containing groove in a penetrating way along the direction vertical to the vibration direction of the loudspeaker, the magnetic circuit system comprises a magnetic bowl fixed on the basin frame and magnetic steel positioned in the magnetic bowl to form a magnetic gap with the magnetic bowl, the vibration system also comprises a voice coil positioned in the magnetic gap, the magnetic bowl is arranged in the containing groove, the magnetic bowl is provided with a plurality of third through holes corresponding to the second through holes, the framework comprises an annular frame body and a plurality of supporting frames convexly arranged on the annular frame body, the support frame passes support after second perforation and the third perforation the voice coil loudspeaker voice coil, the current conducting plate with voice coil loudspeaker voice coil electric connection.

As an improved mode, the upper sound film comprises a dome and a folding ring which is connected with the basin frame and fixes the dome, the framework further comprises a second annular plate which is bent and extends from the edge of the annular frame body to one side far away from the magnetic circuit system, and the second annular plate supports the dome.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a speaker sets up the elastic force arm in the sound membrane outside down, when the speaker amplitude is great, can stagger the elastic force arm with sound membrane down in the position of direction of height, and the elastic force arm can not interfere with sound membrane down when guaranteeing the vibration, has reduced the free height of speaker moreover.

[ description of the drawings ]

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

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

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is a schematic view of the overall structure of the speaker of the present invention;

FIG. 5 is a cross-sectional view of C-C of FIG. 4;

FIG. 6 is an enlarged partial schematic view of FIG. 5 at D;

fig. 7 is a first exploded view of the speaker of the present invention;

fig. 8 is a second exploded view of the speaker of the present invention;

fig. 9 is a third schematic view of the overall structure of the speaker of the present invention;

fig. 10 is a schematic structural view of the speaker of the present invention with the upper sound film removed;

FIG. 11 is a first schematic structural view of the basin stand of the present invention;

fig. 12 is a schematic structural view of the upper sound film of the present invention;

fig. 13 is a schematic structural view of a conductive plate according to the present invention;

FIG. 14 is a second structural view of the basin stand of the present invention;

fig. 15 is a schematic structural view of the framework of the present invention.

Reference numerals:

10. a magnetic circuit system; 11. a magnetic bowl; 111. a third perforation; 112. an upper frame body; 113. a lower frame body; 12. magnetic steel; 13. a pole piece; 14. a magnetic gap; 20. a vibration system; 21. a voice coil; 22. a conductive plate; 221. a support arm; 2211. an annular support arm; 2212. an extension arm; 2213. a first support bar; 222. a spring arm; 2221. an elastic component; 2222. an arc-shaped connecting rod; 2223. a first arcuate bar; 2224. a second arcuate bar; 223. a fixed arm; 2231. a fixing assembly; 2232. a second support bar; 2233. a third support bar; 2234. a fixing sheet; 224. a conductive sheet; 23. a framework; 231. an annular frame body; 232. a support frame; 233. a second annular plate; 24. an upper sound film; 241. a ball top; 242. folding the ring; 25. a lower sound film; 251. a first annular end portion; 252. a second annular end portion; 253. a folded ring part; 26. a fixing pad; 30. a basin stand; 31. an accommodating cavity; 32. a base plate; 33. a side plate; 331. a first perforation; 34. a first annular plate; 341. an accommodating cavity; 342. a communicating groove; 35. an annular boss; 36. a boss; 361. a containing groove; 362. and a second perforation.

[ 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 8, the present invention provides a speaker, which includes a magnetic circuit system 10, a vibration system 20, and a frame 30 having a receiving cavity 31, wherein the magnetic circuit system 10 and the vibration system 20 are both received in the receiving cavity 31.

Referring to fig. 4, 5 and 11, specifically, the frame 30 includes a bottom plate 32, a side plate 33 and a first annular plate 34, the bottom plate 32 is a hollow plate, the side plate 33 is bent and extended from an edge of the bottom plate 32 to a side of the vibration system 20, the first annular plate 34 is spaced from the bottom plate 32, parallel to the bottom plate and located on a side of the side plate 33 away from the bottom plate 32, the first annular plate 34 is bent and extended from an outer edge of the side plate 33 to a side away from the magnetic circuit system 10, and the bottom plate 32, the side plate 33 and the first annular plate 34 enclose the receiving cavity 31.

Referring to fig. 2, 3 and 8, the magnetic circuit system 10 includes two magnetic bowls 11, two magnetic steels 12 and two pole cores 13, the two magnetic steels 12 are disposed between the two magnetic steels 12, the magnetic bowls 11 are fixed in the accommodating cavities 31 of the basin stand 30, the magnetic steels 12 and the pole cores 13 are both fixed in the magnetic bowls 11, the pole cores 13 and the two magnetic steels 12 are stacked in the magnetic bowls 11, the two magnetic steels 12 respectively abut against the top and the bottom of the inner wall surfaces of the magnetic bowls 11, and the magnetic bowls 11 and the magnetic bowls 12 form a magnetic gap 14 in the magnetic circuit system 10.

Referring to fig. 12 and 13, the vibration system 20 includes a voice coil 21, a conductive plate 22, a frame 23, an upper voice diaphragm 24 and a lower voice diaphragm 25, the upper voice diaphragm 24 is fixed to the frame 30 for vibrating and sounding, the voice coil 21 is installed in the magnetic gap 14 and spaced apart from the magnetic bowl 11, the magnetic steel 12 and the pole core 13, the voice coil 21 is sleeved outside the pole core 13, the upper voice diaphragm 24 is installed on a side of the first annular plate 34 away from the bottom plate 32, the upper voice diaphragm 24 includes a spherical top 241 and a folded ring 242 for fixing the spherical top 241, an outer edge of the folded ring 242 is installed on the first annular plate 34, the lower voice diaphragm 25 is annular, and the lower voice diaphragm 25 has a first annular end 251 installed on the frame 30, a second annular end 252 suspended in the accommodating cavity 31, and a folded ring portion 253 for connecting the first annular end 251 and the second annular end 252.

Referring to fig. 4 to 6, the conductive plate 22 includes a supporting arm 221 mounted on the second annular end 252 and electrically connected to the voice coil 21, a resilient arm 222 extending outward from the supporting arm 221 (i.e., away from the magnetic circuit system 10), and a fixing arm 223 extending outward from the resilient arm 222 and connected to the frame 30, one end of the frame 23 is connected to the supporting arm 221 and abuts against the dome 241 of the upper diaphragm 24, and the other end passes through the magnetic bowl 11 to support the voice coil 21, and the upper diaphragm 24 and the lower diaphragm 25 are symmetrically disposed on two sides of the frame 23, so that the speaker can vibrate more stably. The supporting arm 221 is sandwiched between the second annular end 252 and the bobbin 23, and when the voice coil 21 is energized with an alternating current, the voice coil 21 receives an alternating driving force under the action of the magnetic field of the magnetic circuit system 10 to generate an alternating motion, so that the second annular end 252 can vibrate along the vibration direction of the voice coil 21.

Referring to fig. 5 and 9, in the present embodiment, the elastic arm 222 is located outside the lower sound film 25 and suspended in the accommodating cavity 31, and the elastic arm 222 is disposed outside the lower sound film 25, so that when the amplitude of the speaker is large, the positions of the elastic arm 222 and the lower sound film 25 in the height direction can be staggered, thereby ensuring that the elastic arm 222 and the lower sound film 25 do not interfere with each other during vibration, and reducing the height of the speaker.

Referring to fig. 10, 11 and 13, as a preferred embodiment, a ring-shaped boss 35 is convexly disposed on a side of the bottom plate 32 facing the upper diaphragm 24, an inner diameter of the first ring-shaped end 251 is larger than an outer diameter of the second ring-shaped end 252, the first ring-shaped end 251 is mounted on the ring-shaped boss 35, the support arm 221 includes a ring-shaped support arm 2211 and an extension arm 2212, the ring-shaped support arm 2211 is disposed between the second ring-shaped end 252 and the frame 23 and electrically connected to the voice coil 21, one end of the extension arm 2212 is connected to the ring-shaped support arm 2211, the other end is connected to the elastic arm 222, and the extension arm 2212 is suspended above the first ring-shaped end 251 and the corrugated portion 253 to prevent the speaker from interfering with the first ring-shaped end.

Meanwhile, in order to facilitate the electrical connection between the voice coil 21 and the annular support arm 2211 to be more stable, a plurality of conducting strips 224 are convexly disposed on one side of the annular support arm 2211 close to the voice coil 21, and the conducting strips 224 are spaced from the magnetic bowl 11 and connected to the conducting wires on the voice coil 21.

In a preferred embodiment, the extension arm 2212 comprises two first support bars 2213 arranged side by side and connected to the annular support arm 2211, the elastic arm 222 is two elastic members 2221 arranged symmetrically, the fixed arm 223 is two fixed members 2231 arranged symmetrically and connected to the basin stand 30, one end of the elastic member 2221 is connected to the first support bar 2213, and the other end of the elastic member 2221 is connected to the fixed members 2231.

As a preferred embodiment, the elastic assembly 2221 includes an arc connecting rod 2222, a first arc rod 2223 connected to the first supporting rod 2213, and a second arc rod 2224 spaced from the first arc rod 2223 and connected to the fixing assembly 2231, one end of the arc connecting rod 2222 is connected to the first arc rod 2223, and the other end is connected to the second arc rod 2224, and the elastic assembly 2221 can generate a reciprocating restoring force on the conductive plate 22 to make the upper diaphragm 24 and the lower diaphragm 25 generate an amplitude, so as to make the speaker generate sound, although the elastic assembly 2221 in this embodiment can also have other shapes, such as a wave shape, as long as the elastic arm 222 is located outside the lower voice coil 21, which falls within the protection scope of the present invention.

Referring to fig. 9, 14 and 15, as a preferred embodiment, a first through hole 331 communicating with the receiving cavity 31 is formed through the side plate 33, a receiving cavity 341 and a communicating groove 342 extending from the receiving cavity 341 to the first through hole 331 are formed on a side of the first annular plate 34 away from the upper voice diaphragm 24, the fixing member 2231 includes a second supporting rod 2232 connected to the elastic member 2221 and passing through the first through hole 331, a third supporting rod 2233 vertically connected to the second supporting rod 2232 and received in the communicating groove 342, and a fixing plate 2234 connected to the third supporting rod 2233 and fixed in the receiving cavity 341, in this embodiment, the communicating groove 342 is "L" shaped, the second supporting rod 2232 is spaced from the side plate 33, and the third supporting rod 2233 can move up and down in the communicating groove 342, so that the conductive plate 22 can generate a reciprocating restoring force in the speaker.

In a preferred embodiment, the vibration system 20 further includes two fixing pads 26 for fixing the first annular end 251 to the annular boss 35, and the two fixing pads 26 are respectively disposed on two sides of the annular support arm 2211 with the extension arm 2212 as a center line.

Referring to fig. 3, 5, 8, 11 and 15, in this embodiment, a convex seat 36 is further protruded from a side of the bottom plate 32 facing the upper sound diaphragm 24, the convex seat 36 is located in the annular boss 35, the convex seat 36 has an accommodating groove 361 penetrating through the convex seat 36 along a direction perpendicular to the speaker vibration direction and a plurality of second through holes 362 communicating with the accommodating groove 361, the accommodating groove 361 is penetrated and disposed along an axial direction of the convex seat 36, the magnetic bowl 11 is installed in the accommodating groove 361, the magnetic bowl 11 is provided with a plurality of third through holes 111 corresponding to the second through holes 362, the magnetic bowl 11 includes an upper frame 112 and a lower frame 113 connected with the upper frame 112, the third through holes 111 can be disposed on the upper frame 112 and/or the lower frame 113 according to actual requirements, the framework 23 includes an annular frame 231, a plurality of support frames 232 protruded from a side of the annular frame 231 close to the bottom plate 32, and a second annular magnetic circuit 233 extending from an edge of the annular frame 231 to a side far from the system 10, the second annular plate 233 abuts against the ball top 241, the support frame 232 passes through the second through hole 362 and the third through hole 111 and then is connected with the voice coil 21 to support the voice coil 21, and the support frame 232 may be "T" shaped or "L" shaped.

In a preferred embodiment, the number of the elastic arm 222, the fixed arm 223 and the extension arm 2212 is two, and the two elastic arms 222, the two fixed arms 223 and the two extension arms 2212 are respectively arranged on two sides of the annular arm 2211, so that the vibration of the whole speaker can be more stable.

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 (10)

1. The utility model provides a loudspeaker, including have the basin frame of acceping the chamber and accept in accept magnetic circuit and the vibration system of intracavity, the vibration system is including being fixed in the last sound membrane of basin frame in order to be used for the vibration sound production, its characterized in that: the vibrating system still include with go up the skeleton that the sound membrane is connected, with go up the sound membrane and locate respectively the lower sound membrane and the clamp of skeleton both sides are located the skeleton with current conducting plate between the sound membrane down, the sound membrane is the annular down, down the sound membrane have be fixed in first annular tip on the basin frame and with the current conducting plate is connected and suspension in accept the second annular tip of intracavity, the current conducting plate including install in second annular tip with support arm between the skeleton, certainly the arm of elasticity that the support arm extends to the outside with certainly the arm of elasticity extends to the outside and is fixed in fixed arm on the basin frame, the arm of elasticity is located the sound membrane outside is suspension in down accept the intracavity.

2. The loudspeaker of claim 1, wherein: the basin frame includes the bottom plate, certainly the edge of bottom plate to go up the curb plate that sound membrane one side bending type extended and with the bottom plate interval sets up and certainly curb plate outward flange is to keeping away from the first annular plate that magnetic circuit one side bending type extended, the bottom plate curb plate and first annular plate enclose to close and form accept the chamber, the orientation of bottom plate go up the protruding annular boss that is equipped with in one side of sound membrane, first annular tip install in on the annular boss, go up the sound membrane install in keeping away from of first annular plate one side of bottom plate.

3. The loudspeaker of claim 2, wherein: the lower sound film further comprises a folded ring part connecting the first annular end part and the second annular end part, and the inner diameter of the first annular end part is larger than the outer diameter of the second annular end part.

4. A loudspeaker according to claim 3, wherein: the support arm includes annular support arm and extension arm, the annular support arm is located the skeleton with between the second annular tip, the one end of extension arm with the annular support arm is connected, the other end with the elastic arm is connected, just the extension arm suspension in first annular tip with roll over ring portion top.

5. The loudspeaker of claim 4, wherein: the extension arm include two set up side by side and all with the first bracing piece that annular support arm is connected, the elastic component that the elastic arm set up for two symmetries, the fixed arm set up for two symmetries and all with the fixed subassembly that the basin frame is connected, elastic component's one end with first bracing piece is connected, the other end with fixed subassembly connects.

6. The loudspeaker of claim 5, wherein: the elastic component comprises an arc-shaped connecting rod, a first arc-shaped rod connected with the first supporting rod, and a second arc-shaped rod arranged at an interval with the first arc-shaped rod and connected with the fixing component, wherein one end of the arc-shaped connecting rod is connected with the first arc-shaped rod, and the other end of the arc-shaped connecting rod is connected with the second arc-shaped rod.

7. The loudspeaker of claim 5, wherein: the side plate is provided with a first through hole communicated with the accommodating cavity in a penetrating mode, one side, away from the upper sound membrane, of the first annular plate is provided with an accommodating cavity and a communicating groove extending from the accommodating cavity to the first through hole, the fixing assembly comprises a second supporting rod, a third supporting rod and a fixing piece, the second supporting rod is connected with the elastic assembly and penetrates through the first through hole, the third supporting rod is perpendicularly connected with the second supporting rod and accommodated in the communicating groove, and the fixing piece is connected with the third supporting rod and fixed in the accommodating cavity.

8. The loudspeaker of claim 2, wherein: the elastic arm, the fixed arm with the quantity of extension arm is two, two the elastic arm, two the fixed arm and two the extension arm is equallyd divide and is located annular support arm both sides respectively.

9. The loudspeaker of claim 2, wherein: the orientation of bottom plate go up one side of sound membrane still protruding boss that is equipped with, the boss is located in the annular boss, just the boss along perpendicular speaker vibration direction run through be equipped with storage tank and a plurality of with the second that the storage tank is linked together is perforated, magnetic circuit is including being fixed in magnetism bowl on the basin frame and being located in the magnetism bowl with the magnetism bowl forms the magnet steel in magnetic gap, vibration system is still including being located voice coil loudspeaker voice coil in the magnetic gap, magnetism bowl install in the storage tank, be equipped with a plurality of and each on the magnetism bowl the corresponding third of second perforation is perforated, the skeleton includes that annular support body and a plurality of are protruding to be located support frame on the annular support body, the support frame passes support behind second perforation and the third perforation the voice coil loudspeaker voice coil, the current conducting plate with voice coil loudspeaker voice coil electric connection.

10. The loudspeaker of claim 8, wherein: the upper sound film comprises a dome and a folding ring which is connected with the basin frame and fixes the dome, the framework further comprises a second annular plate which is bent and extends from the edge of the annular frame body to one side far away from the magnetic circuit system, and the second annular plate supports the dome.

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