CN205847545U - Minitype acoustic generator - Google Patents
Minitype acoustic generator Download PDFInfo
- Publication number
- CN205847545U CN205847545U CN201620752619.2U CN201620752619U CN205847545U CN 205847545 U CN205847545 U CN 205847545U CN 201620752619 U CN201620752619 U CN 201620752619U CN 205847545 U CN205847545 U CN 205847545U
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- vibrating diaphragm
- fixed
- magnet portion
- magnet
- ring
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
This utility model provides a kind of minitype acoustic generator, it includes vibrational system and magnetic circuit system, described vibrational system includes vibrating diaphragm, this vibrating diaphragm includes the first vibrating diaphragm and the second vibrating diaphragm that relative spacing arranges and is located in top dome between the two, two vibrating diaphragms include ring respectively, pars intermedia and fixed part, two pars intermedias are fixed in the upper and lower surface of top dome respectively, described magnetic circuit system includes lower plate and the first magnet portion placed on it and the second magnet portion around the first magnet portion, in two magnet portion, at least one party includes magnet steel, described minitype acoustic generator also includes being located between two vibrating diaphragms the support both separated, two fixed parts are fixed in the two ends of support respectively, one of them fixed part is fixed in the second magnet portion.The minitype acoustic generator that this utility model provides is by arranging the first vibrating diaphragm and the second vibrating diaphragm, and voice coil vibrations is adjusted by two vibrating diaphragms, it is possible to be effectively improved the flapping issue of voice coil loudspeaker voice coil, improves vibrational system kinetic stability thus improves distortion.
Description
[technical field]
This utility model relates to electroacoustic conversion art, is specifically related to a kind of minitype acoustic generator.
[background technology]
In recent years, along with the progress at full speed of the development of science and technology, especially mobile communication technology, increasing mobile electron
Equipment occurs in daily life, such as smart mobile phone, panel computer, notebook computer and Rich media player
Become the articles for daily use that people are indispensable.And in these mobile electronic devices, voice playing device is must inside it
Few parts, the height of voice quality directly affects Consumer's Experience when user uses these mobile electronic devices.
Minitype acoustic generator is as voice playing device, and the design of its structure directly affects voice quality.Correlation technique miniature
Acoustical generator includes sound film and drives the voice coil loudspeaker voice coil of sound film vibration sounding, and conventional minitype acoustic generator mostly is the design of single-tone film, and voice coil loudspeaker voice coil exists
It is susceptible to during forced vibration wave, thus affects the kinetic stability of vibrational system, affect tonequality.
Therefore, it is necessary to provide a kind of new minitype acoustic generator to solve above-mentioned technical problem in fact.
[utility model content]
The purpose of this utility model is to provide one can be effectively improved voice coil loudspeaker voice coil flapping issue, improves vibrational system motion
Stability thus improve the minitype acoustic generator of distortion.
The purpose of this utility model is achieved in that
A kind of minitype acoustic generator, it includes that vibrational system and magnetic circuit system, described vibrational system include vibrating diaphragm and drive institute
Stating the voice coil loudspeaker voice coil of diaphragm oscillations, described vibrating diaphragm includes the first vibrating diaphragm and the second vibrating diaphragm that relative spacing arranges and is located in described
Top dome between one vibrating diaphragm and the second vibrating diaphragm, described top dome include near described magnetic circuit system lower surface and with described lower surface
The upper surface being oppositely arranged, described first vibrating diaphragm includes the first ring, is arranged at the first pars intermedia inside described first ring
With the first fixed part being arranged at outside described first ring, described second vibrating diaphragm includes the second ring, is arranged at described second
The second pars intermedia inside ring and be arranged at the second fixed part outside described second ring, described first pars intermedia is fixed in
The lower surface of described top dome, described second pars intermedia is fixed in the upper surface of described top dome, and described magnetic circuit system includes lower plate
And the first magnet portion of being arranged on described lower plate and the second magnet portion, in described first magnet portion and the second magnet portion extremely
A few side includes magnet steel, and described second magnet portion arranges also around described first magnet portion and formed between described first magnet portion
Magnetic gap, described voice coil loudspeaker voice coil is suspended in described magnetic gap, and described minitype acoustic generator also includes being located in described first vibrating diaphragm and
The support described first vibrating diaphragm and the second vibrating diaphragm separated between two vibrating diaphragms, described first fixed part and the second fixed part are solid respectively
Being connected to the two ends of described support, described first fixed part is fixed in described second magnet portion.
Preferably, described first vibrating diaphragm and described second vibrating diaphragm are symmetrical arranged about described top dome.
Preferably, described first ring and/or described second ring are undaform.
Preferably, described second magnet portion is magnet steel, and described first fixed part is fixed in described magnet steel.
Preferably, described second magnet portion includes magnet steel and is attached at the pole piece of described magnet steel, and described first fixed part is solid
It is connected to described pole piece.
Preferably, described pole piece is provided with the lobe protruding to described vibrational system direction, and described first fixed part is affixed
In described lobe.
Preferably, described second magnet portion includes magnet steel and is attached at the pole piece of described magnet steel and is arranged at described pole piece
On pad, described first fixed part is fixed in described pad.
A kind of minitype acoustic generator, it includes that vibrational system and magnetic circuit system, described vibrational system include vibrating diaphragm and drive institute
Stating the voice coil loudspeaker voice coil of diaphragm oscillations, described vibrating diaphragm includes the first vibrating diaphragm and the second vibrating diaphragm being oppositely arranged, and described first vibrating diaphragm includes
One ring, be arranged at the first pars intermedia inside described first ring and be arranged at first outside described first ring fix
Portion, described second vibrating diaphragm includes the second ring, is arranged at the second pars intermedia inside described second ring and is arranged at described
The second fixed part outside two rings, described first pars intermedia is fixed in described second pars intermedia, under described magnetic circuit system includes
Clamping plate and the first magnet portion being arranged on described lower plate and the second magnet portion, described first magnet portion and the second magnet portion
Middle at least one party includes magnet steel, and described second magnet portion is arranged also and between described first magnet portion around described first magnet portion
Forming magnetic gap, described voice coil loudspeaker voice coil is suspended in described magnetic gap, and described minitype acoustic generator also includes being located in described first vibrating diaphragm
And second support described first vibrating diaphragm and the second vibrating diaphragm separated between vibrating diaphragm, described first fixed part and the second standing part
Not being fixed in the two ends of described support, described first fixed part is fixed in described second magnet portion.
Preferably, described first ring and/or described second ring are undaform.
Preferably, described second magnet portion is magnet steel, and described first fixed part is fixed in described magnet steel.
Preferably, described second magnet portion includes magnet steel and is attached at the pole piece of described magnet steel, and described first fixed part is solid
It is connected to described pole piece.
Preferably, described pole piece is provided with the lobe protruding to described vibrational system direction, and described first fixed part is affixed
In described lobe.
Preferably, described second magnet portion includes magnet steel and is attached at the pole piece of described magnet steel and is arranged at described pole piece
On pad, described first fixed part is fixed in described pad.
The beneficial effects of the utility model are: this utility model provide minitype acoustic generator by arrange the first vibrating diaphragm and
Second vibrating diaphragm, voice coil vibrations is adjusted by two vibrating diaphragms, it is possible to be effectively improved the flapping issue of voice coil loudspeaker voice coil, improves vibrational system fortune
Dynamic stability thus improve distortion.
[accompanying drawing explanation]
The axonometric chart of the minitype acoustic generator that Fig. 1 provides for this utility model；
The three-dimensional exploded view of the minitype acoustic generator that Fig. 2 provides for this utility model；
Fig. 3 is the Fig. 1 sectional view along line A-A.
[detailed description of the invention]
Below in conjunction with the accompanying drawings, this utility model is elaborated.
As shown in Figure 1 to Figure 3, the minitype acoustic generator 1 provided for this utility model, it includes vibrational system 10 and magnetic circuit system
System 20.
Described vibrational system 10 includes vibrating diaphragm 11 and drives the voice coil loudspeaker voice coil 12 of described vibrating diaphragm 11 vibration, and described vibrating diaphragm 11 includes phase
To spaced first vibrating diaphragm 111 and the second vibrating diaphragm 112 and be located in described first vibrating diaphragm 111 and the second vibrating diaphragm 112 it
Between top dome 13, described top dome 13 includes near the lower surface 131 of described magnetic circuit system 20 and relative with described lower surface 131 sets
The upper surface 132 put, described first vibrating diaphragm 111 includes the first ring 1111, is arranged at inside described first ring 1111
One pars intermedia 1112 and be arranged at the first fixed part 1113 outside described first ring 1111, described second vibrating diaphragm 112 includes
Second ring 1121, it is arranged at the second pars intermedia 1122 inside described second ring 1121 and is arranged at described second ring
The second fixed part 1123 outside 1121, described first pars intermedia 1112 is fixed in the lower surface 131 of described top dome 13, and described
Two pars intermedias 1122 are fixed in the upper surface 132 of described top dome 13.Described voice coil loudspeaker voice coil 12 is glued at described first pars intermedia 1112.?
In the present embodiment, described first ring 1111 and described second ring 1121 in undaform, described first fixed part 1113 place
Plane is less than described first pars intermedia 1112 place plane, and described second fixed part 1123 place plane is middle higher than described second
Portion 1122 place plane, it is preferred that described first vibrating diaphragm 111 and described second vibrating diaphragm 112 are symmetrical arranged about described top dome 13.
Described magnetic circuit system 20 includes lower plate 21 and the first magnet portion 22 being arranged on described lower plate 21 and
Two magnet portion 23, in described first magnet portion 22 and the second magnet portion 23, at least one party includes magnet steel, described second magnet portion 23
Arranging also around described first magnet portion 22 and form magnetic gap 24 between described first magnet portion 22, described voice coil loudspeaker voice coil 12 is suspended in
In described magnetic gap 24.
So-called lower plate 21 is not limited to plate-like structure, as long as the base plate with placement magnet portion can be referred to as
Lower plate.In described first magnet portion 22 and the second magnet portion 23, at least one party includes magnet steel it is to be understood that ought the only first magnetic
When body 22 is magnet steel, the second magnet portion 23 is wholely set with lower plate 21, and now so-called lower plate is a magnetic with sidewall
Bowl structure；When the only second magnet portion 23 is magnet steel, the first magnet portion 22 is wholely set with lower plate 21, now so-called lower folder
Plate is a T-type structure；When the first magnet portion 22 and the second magnet portion 23 are magnet steel, now lower plate is a tabular knot
Structure.
In the present embodiment, described first magnet portion 22 and the second magnet portion 23 are the situation being magnet steel, described first
Magnet portion 22 is to be arranged at the main magnet steel 221 in described lower plate 21 centre position, and described second magnet portion 23 is described for being arranged at
The secondary magnet steel 231 that lower plate 21 marginal position is arranged around described main magnet steel 221, described first fixed part 1113 is fixed in described
Secondary magnet steel 231, as improvement, described first magnet portion 22 also includes the main pole core 222 being attached at described main magnet steel 221, described
Second magnet portion 23 also includes the annular secondary pole piece 232 being attached at described secondary magnet steel 231, and described first fixed part 1113 is fixed in
Described consequent pole core 232, it is preferred that described consequent pole core 232 is additionally provided with the lobe extended to described vibrational system 10 direction projection
233, described first fixed part 1113 is fixed in described lobe 233, naturally it is also possible to arrange on described consequent pole core 232
Pad 233, described first fixed part 1113 is fixed in described pad 233.
Described minitype acoustic generator 1 also includes being located in described first between described first vibrating diaphragm 111 and the second vibrating diaphragm 112
Support 30 that vibrating diaphragm 111 and the second vibrating diaphragm 112 separate and lid are connected to the protecgulum 40 of described second vibrating diaphragm 112, and described first is solid
Determining portion 1113 and the second fixed part 1123 is respectively and fixedly connected with in the two ends of described support 30, described first fixed part 1113 is fixed in institute
State the second magnet portion 23 (to include but not limited to be fixed in secondary magnet steel 231 or consequent pole core 232 or lobe 233 or the feelings of pad 233
Shape).Described protecgulum 40 is fixed in described second fixed part 1123.
In other examples, it is also possible to embodiment described above will be located in described first vibrating diaphragm 111 and second
Top dome 13 between vibrating diaphragm 112 is saved, and directly described first pars intermedia 1112 is fixed in described second pars intermedia 1122.Its
In, affixed mode is not limited to gluing, as long as other such as hot pressing, integrated injection moldings etc. can be by the first pars intermedia 1112 and
The mode that second pars intermedia 1122 combines.
The minitype acoustic generator 1 that this utility model provides is by arranging the first vibrating diaphragm 111 and the second vibrating diaphragm 112, two vibrating diaphragms
The vibration of voice coil loudspeaker voice coil 12 can be adjusted, it is possible to be effectively improved the flapping issue of voice coil loudspeaker voice coil 12, improve the motion of vibrational system 10
Stability thus improve distortion.
Above-described is only embodiment of the present utility model, it should be noted here that for the ordinary skill of this area
For personnel, on the premise of creating design without departing from this utility model, it is also possible to make improvement, but these belong to this practicality
Novel protection domain.
Claims (13)
1. a minitype acoustic generator, it includes that vibrational system and magnetic circuit system, described vibrational system include vibrating diaphragm and drive described
The voice coil loudspeaker voice coil of diaphragm oscillations, it is characterised in that: described vibrating diaphragm includes the first vibrating diaphragm that relative spacing arranges and the second vibrating diaphragm and folder
Be located at the top dome between described first vibrating diaphragm and the second vibrating diaphragm, described top dome include near described magnetic circuit system lower surface and with
The upper surface that described lower surface is oppositely arranged, described first vibrating diaphragm includes the first ring, is arranged at inside described first ring
First pars intermedia and be arranged at the first fixed part outside described first ring, described second vibrating diaphragm includes the second ring, setting
The second pars intermedia inside described second ring and be arranged at the second fixed part outside described second ring, in described first
Between portion be fixed in the lower surface of described top dome, described second pars intermedia is fixed in the upper surface of described top dome, described magnetic circuit system
The first magnet portion including lower plate and being arranged on described lower plate and the second magnet portion, described first magnet portion and second
In magnet portion, at least one party includes magnet steel, described second magnet portion around described first magnet portion arrange and with described first magnet
Forming magnetic gap between portion, described voice coil loudspeaker voice coil is suspended in described magnetic gap, and described minitype acoustic generator also includes being located in described the
The support described first vibrating diaphragm and the second vibrating diaphragm separated between one vibrating diaphragm and the second vibrating diaphragm, described first fixed part and second is admittedly
Determining portion and be fixed in the two ends of described support respectively, described first fixed part is fixed in described second magnet portion.
Minitype acoustic generator the most according to claim 1, it is characterised in that: described first vibrating diaphragm and described second vibrating diaphragm about
Described top dome is symmetrical arranged.
Minitype acoustic generator the most according to claim 1, it is characterised in that: described first ring and/or described second ring
In undaform.
Minitype acoustic generator the most according to claim 1, it is characterised in that: described second magnet portion is magnet steel, described first
Fixed part is fixed in described magnet steel.
Minitype acoustic generator the most according to claim 1, it is characterised in that: described second magnet portion includes magnet steel and is attached at
The pole piece of described magnet steel, described first fixed part is fixed in described pole piece.
Minitype acoustic generator the most according to claim 5, it is characterised in that: described pole piece is provided with to described vibrational system direction
Protruding lobe, described first fixed part is fixed in described lobe.
Minitype acoustic generator the most according to claim 1, it is characterised in that: described second magnet portion includes magnet steel and is attached at
The pole piece of described magnet steel and be arranged at the pad on described pole piece, described first fixed part is fixed in described pad.
8. a minitype acoustic generator, it includes that vibrational system and magnetic circuit system, described vibrational system include vibrating diaphragm and drive described
The voice coil loudspeaker voice coil of diaphragm oscillations, it is characterised in that: described vibrating diaphragm includes the first vibrating diaphragm and the second vibrating diaphragm being oppositely arranged, and described first shakes
Film includes the first ring, is arranged at the first pars intermedia inside described first ring and is arranged at outside described first ring
One fixed part, described second vibrating diaphragm includes the second ring, is arranged at the second pars intermedia inside described second ring and is arranged at
The second fixed part outside described second ring, described first pars intermedia is fixed in described second pars intermedia, described magnetic circuit system
The first magnet portion including lower plate and being arranged on described lower plate and the second magnet portion, described first magnet portion and second
In magnet portion, at least one party includes magnet steel, described second magnet portion around described first magnet portion arrange and with described first magnet
Forming magnetic gap between portion, described voice coil loudspeaker voice coil is suspended in described magnetic gap, and described minitype acoustic generator also includes being located in described the
The support described first vibrating diaphragm and the second vibrating diaphragm separated between one vibrating diaphragm and the second vibrating diaphragm, described first fixed part and second is admittedly
Determining portion and be fixed in the two ends of described support respectively, described first fixed part is fixed in described second magnet portion.
Minitype acoustic generator the most according to claim 8, it is characterised in that: described first ring and/or described second ring
In undaform.
Minitype acoustic generator the most according to claim 8, it is characterised in that: described second magnet portion is magnet steel, described first
Fixed part is fixed in described magnet steel.
11. minitype acoustic generators according to claim 8, it is characterised in that: described second magnet portion includes magnet steel and attaching
In the pole piece of described magnet steel, described first fixed part is fixed in described pole piece.
12. minitype acoustic generators according to claim 11, it is characterised in that: described pole piece is provided with to described vibrational system side
To protruding lobe, described first fixed part is fixed in described lobe.
13. minitype acoustic generators according to claim 8, it is characterised in that: described second magnet portion includes magnet steel and attaching
In the pole piece of described magnet steel and be arranged at the pad on described pole piece, described first fixed part is fixed in described pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752619.2U CN205847545U (en) | 2016-07-18 | 2016-07-18 | Minitype acoustic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752619.2U CN205847545U (en) | 2016-07-18 | 2016-07-18 | Minitype acoustic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205847545U true CN205847545U (en) | 2016-12-28 |
Family
ID=57619068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620752619.2U Expired - Fee Related CN205847545U (en) | 2016-07-18 | 2016-07-18 | Minitype acoustic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205847545U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111988710A (en) * | 2020-08-11 | 2020-11-24 | 歌尔股份有限公司 | Vibration system and sound-generating unit having the same |
| WO2021134185A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Sound production device |
-
2016
- 2016-07-18 CN CN201620752619.2U patent/CN205847545U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134185A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN111988710A (en) * | 2020-08-11 | 2020-11-24 | 歌尔股份有限公司 | Vibration system and sound-generating unit having the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 |