CN201742543U - Diaphragm structure and electromagnetic loudspeaker thereby - Google Patents
Diaphragm structure and electromagnetic loudspeaker thereby Download PDFInfo
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- CN201742543U CN201742543U CN201020256019XU CN201020256019U CN201742543U CN 201742543 U CN201742543 U CN 201742543U CN 201020256019X U CN201020256019X U CN 201020256019XU CN 201020256019 U CN201020256019 U CN 201020256019U CN 201742543 U CN201742543 U CN 201742543U
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- diaphragm
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Abstract
The utility model provides a diaphragm structure and an electromagnetic loudspeaker thereby. The electromagnetic loudspeaker comprises a magnetic circuit and a vibration system, wherein the magnetic circuit is provided with a magnetic gap; the vibration system comprises a diaphragm and a voice coil, wherein one end of the voice coil is fixed on the diaphragm, and the other end of the voice coil is hung in the magnetic gap of the magnetic circuit system; the diaphragm comprises a first folding ring part and a first connection part, wherein a plurality of reinforced structures are arranged between the connection part and the first folding ring part. The connection part of the electromagnetic loudspeaker is provided with the reinforced structures to improve the vibration strength of the diaphragm and ensure the joint strength between the first folding ring part and the connection part, and thus the electromagnetic loudspeaker does not distort at high frequency and keeps good acoustical property of the electromagnetic loudspeaker.
Description
Technical field
The utility model relates to a kind of diaphragm structure and adopts the magnetic speaker of described diaphragm structure.
Background technology
At present, the consumer is more and more higher to the requirement of portable consumer electronic product, and for example: frivolous portable mobile phone, portable computer, PDA, MP3 etc. enjoy market to praise highly.People not only require product light, thin, short, little so that carry, and the performance of product is also especially paid close attention to, for example aspect such as tonequality.Therefore, along with portable type electronic product develops towards compact direction, how its tonequality keeps or constantly promotes becoming one of problem that industry pays close attention to.The vibrating diaphragm of magnetic speaker is the core component of magnetic speaker sounding, and its acoustical behavior is required also to improve constantly.
The vibrating diaphragm of magnetic speaker be with a kind of material by hot-forming, when requiring the range of broad, need to guarantee the bigger amplitude of vibrational system tool of magnetic speaker.
Please consult Fig. 1 and Fig. 2 simultaneously, wherein Fig. 1 is the perspective exploded view of the magnetic speaker relevant with the utility model, and Fig. 2 is the side sectional view after the magnetic speaker assembling shown in Figure 1.Described magnetic speaker 1 comprises a basin bone 10, a magnetic circuit system 11 and a vibrational system 12.Described magnetic circuit system 11 comprises a magnetic gap 111.Described vibrational system 12 comprises a vibrating diaphragm 13 and a voice coil loudspeaker voice coil 14.
Described vibrating diaphragm 13 is arranged at described magnetic circuit system 11 tops, and its edge is fixed on a basin bone 10 edges.Described voice coil loudspeaker voice coil 14 1 ends are suspended in the described magnetic gap 111, and its other end is connected with described vibrating diaphragm 13.
Described vibrating diaphragm 13 comprises that a soft ring 131 and is stacked at the ball top 135 on the described soft ring 131.Described soft ring 131 comprises a ring portion 132 and is positioned at the plane at its center that described ball pushes up 135 lower surfaces and described plane 134 fits tightly.
From the actual requirement of the slimming of magnetic speaker 1, wish that the thickness on ball top 135 gets over Bao Yuehao, in described magnetic speaker 1, satisfy under the performance demands on described ball top 135, the thin more acoustical behavior to magnetic speaker 1 of thickness on described ball top 135 is also favourable more.Yet, in the structure of above-mentioned magnetic speaker 1 because the plane, center 134 of described vibrating diaphragm 13 directly seamlessly transits with described ring portion 132, so when the ball top 135 of described vibrating diaphragm 13 thin excessively, then can reduce the intensity of vibrating diaphragm 13, and then influence the acoustical behavior of magnetic speaker 1.
In addition, the voice coil loudspeaker voice coil that is positioned at described magnetic gap 111 has bigger amplitude, and the range of then described magnetic speaker 1 is wider, and high pitch is not easy distortion, and acoustical behavior is better.Yet because described voice coil loudspeaker voice coil 14 when increasing amplitudes, tends to cause corresponding reduction of intensity of the vibrating diaphragm 13 of described vibrational system 12, institute thinks and guarantees described vibrational system 12 intensity, does not increase integral thickness again, needs to improve the structure of described vibrating diaphragm 13.
The utility model content
Be to solve that its structural strength of magnetic speaker thinning reduces, the problem of acoustical behavior variation, provide a kind of thinning and its structural strength strengthens, acoustical behavior is good diaphragm structure is real in necessary.
Also be necessary to provide a kind of magnetic speaker that adopts described vibrating diaphragm simultaneously.
A kind of diaphragm structure, it comprises one first ring portion, a junction and one second ring portion, described connecting portion connects described first ring portion and the described second ring portion, is provided with a plurality of reinforced structures between described connecting portion and the described first ring portion.
Preferably, the reinforced structure of described diaphragm structure comprises a plurality of first juts that are positioned at the first ring portion edge and a plurality of second juts that are positioned at the connecting portion edge, and described first jut and the engagement of described second jut are provided with.
Preferably, a plurality of first juts of described diaphragm structure evenly at interval are provided with, and described second jut is same evenly to be provided with at interval, and each described first jut is contained in the accepting groove between two adjacent second juts.
Preferably, the reinforced structure of described diaphragm structure is the concaveconvex structure that a plurality of relief patterns constitute.
Preferably, the concaveconvex structure of described diaphragm structure is any one in arc, annular and the polygon.
Preferably, the first ring portion of described diaphragm structure, described connecting portion and the described second ring portion are integrative-structures.
Preferably, first ring portion of described diaphragm structure and connecting portion be in Different Plane, and connect by a wall extension.
Preferably, between the connecting portion of described diaphragm structure and the second ring portion a plurality of reinforced structures are set equally.
A kind of magnetic speaker, it comprises the magnetic circuit system and a vibrational system of a tool magnetic gap, described vibrational system comprises a vibrating diaphragm and a voice coil loudspeaker voice coil, one end of described voice coil loudspeaker voice coil is fixed to described vibrating diaphragm, the other end of described voice coil loudspeaker voice coil is suspended in the magnetic gap of described magnetic circuit system, described vibrating diaphragm comprises one first ring portion, reaches a junction, is provided with a plurality of reinforced structures between described connecting portion and the described first ring portion.
Preferably, described magnetic speaker also comprises a protecgulum, and described protecgulum is provided with near described first ball top.
Compared to prior art, the vibrating diaphragm of magnetic speaker of the present utility model comprises the connecting portion that the described first ring portion of connection and the second ring portion are set, and reinforced structure is set at the connecting portion place, improve the vibration strength of vibrating diaphragm by this reinforced structure, guarantee the bonding strength between described first ring portion and the described connecting portion, make that described magnetic speaker is undistorted at high frequency, guarantee that the acoustical behavior of magnetic speaker is preferable.
Description of drawings
Fig. 1 is a kind of perspective exploded view of the magnetic speaker relevant with the utility model.
Fig. 2 is the side sectional view of magnetic speaker shown in Figure 1.
Fig. 3 is the perspective exploded view of magnetic speaker of the present utility model.
Fig. 4 is the perspective view of vibrating diaphragm shown in Figure 3.
Fig. 5 is the part section enlarged diagram of vibrating diaphragm shown in Figure 4.
Fig. 6 is the assembling schematic diagram of magnetic speaker shown in Figure 3.
Fig. 7 is the side sectional view of magnetic speaker shown in Figure 6 along the IV-IV line.
Fig. 8 is the distressed structure schematic diagram of the vibrating diaphragm of the utility model magnetic speaker.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to the utility model magnetic speaker.
Seeing also Fig. 3, is the perspective exploded view of the utility model magnetic speaker.Described magnetic speaker 2 comprises a basin frame 20, a magnetic circuit system 3 and a vibrational system 4 that sets gradually.Described basin frame 20 constitutes described magnetic circuit system 3 and the vibrational system 4 of a receiving space in order to accommodate superimposed setting.
Described magnetic circuit system 3 comprises a magnetic bowl 31, a magnet steel 33 and a pole piece 35.Described another receiving space of magnetic bowl 31 tools is in order to accommodate described magnet steel 33 and described pole piece 35 simultaneously.Described magnet steel 33 and described pole piece 35 are stacked in the receiving space of described magnetic bowl 31 successively, and described magnet steel 33 is located between described pole piece 35 and the described magnetic bowl 31.The outside dimension of described magnet steel 33 is less than the receiving space size of described magnetic bowl 31.Keep a magnetic gap 310 (seeing also Fig. 7) between the outer surface of the inner surface of described magnetic bowl 31 and described magnet steel 33 and described pole piece 35.
Described vibrational system 4 comprises a vibrating diaphragm 41, a voice coil loudspeaker voice coil 43 and ball top 45.Described voice coil loudspeaker voice coil 41 and described ball top 45 are separately positioned on two opposite sides of described vibrating diaphragm 41.The two opposite side surfaces of getting described vibrating diaphragm 41 are respectively upper surface 411 and lower surface 412, and then described voice coil loudspeaker voice coil 43 is located at the lower surface 412 of described vibrating diaphragm 41, and the upper surface 411 of described vibrating diaphragm 41 is located on described ball top 45.
Please consult Fig. 4 and Fig. 5 more simultaneously, wherein Fig. 4 is the perspective view of vibrating diaphragm 41 shown in Figure 3, and Fig. 5 is the part section enlarged diagram of vibrating diaphragm 41 shown in Figure 4.Described vibrating diaphragm 41 comprises that a center is the first ring portion 413, a junction 415 and second a ring portion 416 around the described first ring portion 413 on plane.
Described first ring 413 is used for supporting and keeping the compliance vibration of described vibrating diaphragm 41.The described first ring portion 413 central areas are flat boards of a surfacing, and its fringe region is provided with a plurality of first juts 4131, the thickness of each first jut 4131 and the consistency of thickness of central area, and be positioned at same plane.Described a plurality of first jut 4131 evenly is provided with at interval, forms an accepting groove (not indicating) between per two adjacent first juts 4131.
Described connecting portion 415 is annular regions, and its edge is provided with a plurality of second juts 4151, and described a plurality of second juts 4151 evenly are provided with at interval, and same another accepting groove (not indicating) that forms between per two adjacent second juts 4151.The inside edge of described connecting portion 415 is connected by a wall extension 414 with the outer ledge of the described first ring portion 413.Described first jut, 4131 correspondences are contained in the accepting groove between two adjacent second juts 4151 of described connecting portion 415, simultaneously second jut 4151 of described connecting portion 415 is contained in the accepting groove between two adjacent first juts 4131 of the described first ring portion 413 simultaneously, makes described first ring portion 413 and described connecting portion 415 be fixed together by a plurality of first jut 4131, second juts 4151 that are provided with that are meshing with each other.
The outer ledge of described connecting portion 415 is connected in the inside edge of the described second ring portion 416 simultaneously, make the common step that extends to voice coil loudspeaker voice coil 43 place directions from the first ring portion 413 and the second ring portion 415 that forms of the described second ring portion 415, described wall extension 414, described connecting portion 415 and the described first ring portion 415, this step is provided with a plurality of juts, described connecting portion 415 is positioned on the different level with the described first ring portion 413, vertically, described connecting portion 415 is compared to the described first ring portion 413, more near described voice coil loudspeaker voice coil 43.The first ring portion 413 of described vibrating diaphragm 41, connecting portion 415 and the described second ring portion 416 are integrative-structures, can be by heat pressing process, stamp out depression sinking step in the periphery of the described first ring portion 413 and obtain.
Please consult the described voice coil loudspeaker voice coil 43 of Fig. 3 and Fig. 4 once more and be by the endless metal conductor loop around forming, the one end is fixed in the connecting portion 415 of described vibrating diaphragm 41, and its other end is suspended in the magnetic gap 310 of described magnetic circuit system 3.
Described ball top 45 is a flat structure, and it is shaped as cylindricality.Described ball top 45 is stacked at the upper surface 411 of described vibrating diaphragm 41, and is close to the described first ring portion 413 surfaces.
Please consult Fig. 6 and Fig. 7 more simultaneously, wherein Fig. 6 is a schematic diagram after the assembling of magnetic speaker 2 shown in Figure 3, and Fig. 7 is the generalized section of magnetic speaker 2 shown in Figure 6 along the IV-IV line.
When assembling, at first a wherein surface of described magnet steel 33 and the inside bottom surface of described magnetic bowl 31 are fitted tightly together, again its another surface is closely linked with pole piece 35 1 surfaces.Because the outside dimension of magnet steel 33 less than the outside dimension of described magnetic bowl 31, so there is a gap between its sidewall and described magnetic bowl 31 madial walls, forms magnetic gap 310.
Then, described magnetic circuit system 3 is fixed in the receiving space of described basin frame 20, it comprises described magnetic bowl 31, magnet steel 33 and pole piece 35.
Then, described ball top 45 is bonded in the upper surface 411 of described vibrating diaphragm 41.With described voice coil loudspeaker voice coil 43 1 ends be positioned at described connecting portion 415 and be adhesively fixed, its other end is suspended in the described magnetic gap 310.Described vibrational system 4 is arranged at described magnetic circuit system 3 tops, and vibrating diaphragm 41 edges of described vibrational system 4 and described basin frame 20 edges bond together.
When described voice coil loudspeaker voice coil 43 received the external impressed current signal, described voice coil loudspeaker voice coil 43 is subjected to Lorentz force in the magnetic field of magnetic gap 310 effect can produce displacement.Along with the current signal that described voice coil loudspeaker voice coil 43 receives is constantly changed direction, make also correspondent transform direction of Lorentz force that described coil 43 is subjected to, so make the reciprocating motion described magnetic gap 310 in of described coil 43, vibrate and sound thereby drive vibrating diaphragm 41.In the present embodiment, the connecting portion 415 of described vibrating diaphragm 41 is arranged to step-like, guarantee that the end that suspends of described voice coil loudspeaker voice coil 43 is positioned at the better position of described magnetic gap 310, when the described vibrating diaphragm 41 of described voice coil loudspeaker voice coil 43 drives vibrates, bigger Oscillation Amplitude is arranged, but can not increase the integral thickness of whole magnetic speaker 2.
Compared to prior art, in the magnetic speaker 2 of present embodiment, this sinking step is set, guarantee that described vibrational system has bigger oscillation space when work, increase the range that amplitude provides broad.
Simultaneously, the acoustical behavior of described magnetic speaker 2 and vibrating diaphragm 41 strength relationships are close, and especially when high frequency, high-intensity vibrating diaphragm 41 can guarantee that described magnetic speaker 2 is undistorted at high frequency.Contact area between the connecting portion 415 of the vibrating diaphragm 41 of the magnetic speaker 2 of described execution mode and the described first ring portion 413 is provided with a plurality of first jut 4131, a plurality of second juts 4151 that are engaged with each other and are provided with, and strengthens bonding strength between described first ring portion 413 and the described connecting portion 415 as reinforced structure.Therefore, when described voice coil loudspeaker voice coil 43 drives described vibrating diaphragm 41 double vibrationses, described connecting portion 415 improves the intensity of whole vibrating diaphragm 41 greatly by the strengthening action of described a plurality of first juts 4131 with described second jut 4151, guarantees that the acoustical behavior of magnetic speaker 2 is preferable.
Step described in the present embodiment is to be formed by described vibrating diaphragm 41 direct hot pressing, and therefore the thickness of described magnetic speaker 2 does not increase, and its vibrating diaphragm 41 intensity and acoustical behavior are improved preferably.
In the above-described embodiment, reinforced structure between described connecting portion 415 and the described first ring portion 413 is not limited only to adopt first jut 4131 and second jut 4151 of engagement setting, it can also be the concaveconvex structure that other tool is strengthened the relief pattern formation of connection field strength, as shown in Figure 8, this reinforcement can be the arc relief pattern, reinforcing rib structure such as annular and polygon, bond strength between described connecting portion 415 of every increase and the described first ring portion 415, and the micro-structural of the whole vibrating diaphragm 41 whole antivibration abilities of raising is all within the novel design scope of this practicality.
Certainly, above-mentioned reinforced structure is not limited only to be arranged between described first ring portion 413 and the described connecting portion 415, can also be arranged between described second ring portion 416 and the described connecting portion 415.
Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. diaphragm structure, it comprises one first ring portion, a junction and one second ring portion, described connecting portion connects described first ring portion and the described second ring portion, it is characterized in that: be provided with a plurality of reinforced structures between described connecting portion and the described first ring portion.
2. diaphragm structure according to claim 1, it is characterized in that: described reinforced structure comprises a plurality of first juts that are positioned at the first ring portion edge and a plurality of second juts that are positioned at the connecting portion edge, and described first jut and the engagement of described second jut are provided with.
3. diaphragm structure according to claim 2, it is characterized in that: described a plurality of first juts evenly are provided with at interval, described second jut is same evenly to be provided with at interval, and each described first jut is contained in the accepting groove between two adjacent second juts.
4. diaphragm structure according to claim 1 is characterized in that: described reinforced structure is the concaveconvex structure that a plurality of relief patterns constitute.
5. diaphragm structure according to claim 4 is characterized in that: described concaveconvex structure is any one in arc, annular and the polygon.
6. diaphragm structure according to claim 1 is characterized in that: the described first ring portion, described connecting portion and the described second ring portion are integrative-structures.
7. diaphragm structure according to claim 1 is characterized in that: described first ring portion and connecting portion be in Different Plane, and connect by a wall extension.
8. diaphragm structure according to claim 7 is characterized in that: between the described connecting portion and the second ring portion a plurality of reinforced structures are set equally.
9. magnetic speaker, it comprises the magnetic circuit system and a vibrational system of a tool magnetic gap, described vibrational system comprises a vibrating diaphragm and a voice coil loudspeaker voice coil, one end of described voice coil loudspeaker voice coil is fixed to described vibrating diaphragm, the other end of described voice coil loudspeaker voice coil is suspended in the magnetic gap of described magnetic circuit system, it is characterized in that: described vibrating diaphragm comprises one first ring portion, reaches a junction, is provided with a plurality of reinforced structures between described connecting portion and the described first ring portion.
10. magnetic speaker according to claim 9 is characterized in that: described magnetic speaker also comprises ball top, and described ball top is sticked on a wherein surface of described vibrating diaphragm, two opposite side surfaces of described voice coil loudspeaker voice coil and the described vibrating diaphragm of described ball top separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020256019XU CN201742543U (en) | 2010-07-09 | 2010-07-09 | Diaphragm structure and electromagnetic loudspeaker thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020256019XU CN201742543U (en) | 2010-07-09 | 2010-07-09 | Diaphragm structure and electromagnetic loudspeaker thereby |
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| Publication Number | Publication Date |
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| CN201742543U true CN201742543U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020256019XU Expired - Lifetime CN201742543U (en) | 2010-07-09 | 2010-07-09 | Diaphragm structure and electromagnetic loudspeaker thereby |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625226A (en) * | 2012-04-07 | 2012-08-01 | 歌尔声学股份有限公司 | Assembling method for mini-size loudspeaker assembly |
| CN104519450A (en) * | 2014-12-26 | 2015-04-15 | 汉得利（常州）电子股份有限公司 | Novel loudspeaker diaphragm |
| CN104581552A (en) * | 2014-12-31 | 2015-04-29 | 苏州恒听电子有限公司 | Vibrating diaphragm with reinforcing rib structure and telephone receiver |
| CN105163246A (en) * | 2015-08-12 | 2015-12-16 | 歌尔声学股份有限公司 | Voice coil wire, voice coil made of voice coil wire, loudspeaker and vibration motor |
| CN108391214A (en) * | 2018-05-23 | 2018-08-10 | 歌尔股份有限公司 | Vibrational system and loud speaker |
| WO2020140542A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022000388A1 (en) * | 2020-07-01 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2010
- 2010-07-09 CN CN201020256019XU patent/CN201742543U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625226A (en) * | 2012-04-07 | 2012-08-01 | 歌尔声学股份有限公司 | Assembling method for mini-size loudspeaker assembly |
| CN102625226B (en) * | 2012-04-07 | 2014-08-20 | 歌尔声学股份有限公司 | Assembling method for mini-size loudspeaker assembly |
| CN104519450A (en) * | 2014-12-26 | 2015-04-15 | 汉得利（常州）电子股份有限公司 | Novel loudspeaker diaphragm |
| CN104581552A (en) * | 2014-12-31 | 2015-04-29 | 苏州恒听电子有限公司 | Vibrating diaphragm with reinforcing rib structure and telephone receiver |
| CN105163246A (en) * | 2015-08-12 | 2015-12-16 | 歌尔声学股份有限公司 | Voice coil wire, voice coil made of voice coil wire, loudspeaker and vibration motor |
| CN108391214A (en) * | 2018-05-23 | 2018-08-10 | 歌尔股份有限公司 | Vibrational system and loud speaker |
| WO2020140542A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022000388A1 (en) * | 2020-07-01 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
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| CX01 | Expiry of patent term |