KR20110080588A - Multi-function micro-speaker - Google Patents
Multi-function micro-speaker Download PDFInfo
- Publication number
- KR20110080588A KR20110080588A KR1020100000899A KR20100000899A KR20110080588A KR 20110080588 A KR20110080588 A KR 20110080588A KR 1020100000899 A KR1020100000899 A KR 1020100000899A KR 20100000899 A KR20100000899 A KR 20100000899A KR 20110080588 A KR20110080588 A KR 20110080588A
- Authority
- KR
- South Korea
- Prior art keywords
- suspension
- frame
- spacer
- outer cover
- micro speaker
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/07—Suspension between moving magnetic core and housing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
The present invention relates to a multi-function micro speaker, and more particularly, in the manufacturing process of the multi-function micro speaker, various components are sequentially stacked in the outer cover, and after the stacking of the components, the upper end of the outer cover is assembled to assemble the assembly process. The present invention relates to a multifunctional micro speaker, which can be simplified and improves productivity, and has an improved structure to protect components from external shocks to improve durability.
Generally, a speaker is a device that converts an electrical signal into a voice signal. Micro-speakers are mainly small speakers for small sized audio equipment such as mobile phones, laptops, MP3 players, earphones, etc., and portable audio equipment that is in great demand in recent years.
However, recent electronic products employing micro-speakers, particularly mobile communication terminals such as mobile phones, have a configuration for generating vibration signals. The vibration signal is used as a signal in place of an incoming call signal or as a signal for confirming an input state in a touch screen method of directly inputting information on a screen.
The micro speaker, which is the object of the present invention, refers to a speaker having not only a basic function of generating sound but also a configuration for generating a vibration signal. The micro speaker is variously called a multifunctional actuator or a multifunctional electro-acoustic transducer.
The conventional micro speaker has a structure in which vibration is obtained by resonating a vibrating body supported by a plate spring. Such a conventional micro speaker has a voice coil in a magnetic circuit on the side of a diaphragm, also called a vibration plate, and when a current for a voice signal is applied thereto, a sound is output. Generate.
1 shows an example of a conventional micro speaker. Referring to this, the
The upper end of the
The operation of the
When a current suitable for sound is applied to the
In other words, the magnetic force lines emerging from the N pole of the
On the other hand, when a current suitable for vibration (usually low frequency current) is applied to the
Referring to the assembly process of the
First, the
As such, the
In particular, the method of assembling the component is applied to the bond between the components, and the method of hardening it is generally applied, it is difficult to adjust the quantitative and in-situ position of the liquid bond, so that product-specific variation occurs. In addition, in order to solve this problem, it causes a problem of increasing the investment in assembly equipment.
The present invention is to solve the above problems, by stacking the components of the multi-function micro speaker in the outer cover, and assembled by curling the upper end of the outer cover inward, thereby simplifying the assembly process and protect the components from external shock It is an object of the present invention to provide a multi-functional micro speaker to improve the durability.
In order to achieve the above object, the multifunctional micro speaker of the present invention includes a frame; A diaphragm having its outer circumference fixed to the frame; A voice coil fixed to the lower surface of the diaphragm; A first suspension having an outer circumference coupled to the frame and having elasticity; A yoke fixed to the first suspension; A first permanent magnet fixed to the bottom surface of the yoke; A plate fixed to an upper surface of the first permanent magnet; And an outer cover having a bottom portion and a side wall portion to receive the frame and the first suspension.
In addition, the outer cover is preferably provided with a curling portion of the upper end is curled to the inside.
In addition, it is preferable that a plurality of air holes are formed at the bottom of the outer cover.
In addition, the sidewall portion of the outer cover, it is preferable that the opening groove is formed so that the frame is protruding.
In addition, the insertion groove is preferably formed along the circumferential direction of the lower surface of the frame.
In addition, along the edge circumferential direction of the first suspension, it is preferable that the engaging projection is inserted into the insertion groove is formed.
In addition, the first suspension is preferably disposed at equal intervals along the circumferential direction, and a first support portion for supporting the first suspension is formed between the frame and the first spacer.
In addition, it is preferable to have an upper cover coupled to the outer circumference of the upper surface of the diaphragm.
In addition, it is preferable to have a first spacer coupled to the lower surface of the first suspension.
The display device may further include a second suspension having an outer circumference coupled to a lower surface of the first spacer, a second magnet coupled to the second suspension, and a second spacer having an outer circumference coupled to a lower surface of the second suspension. Preferably, the second suspension, the second magnet, and the second spacer are accommodated in the outer cover, and the bottom surface of the second spacer is coupled to the bottom of the outer cover.
In addition, it is preferable that the first spacer is formed in a ring shape, and the cross section of the first spacer is a quadrangular shape having a rounded portion with rounded corners.
In addition, the second suspension is preferably provided with a second support having a bent portion arranged at equal intervals along the circumferential direction and bent upwards so that the outer end portion is fitted into the round portion.
In addition, the bottom portion of the outer cover is preferably formed with a second boss protruding upward from the center, the second magnet is formed with a second boss inserting portion into which the second boss is inserted.
According to the multi-function micro-speaker according to the present invention, in order that the components constituting the multi-function micro-speaker is accommodated in the outer cover, the components are stacked in order from the bottom of the outer cover, and assembled by curling the upper end of the outer cover inward. By assembling, the manufacturing process is simplified to provide the effect of improving productivity.
In addition, in the process of assembling the components it is possible to minimize the process of the conventional coating process to reduce the process cost, to minimize the characteristic deviation of each product, to provide an eco-friendly multi-function micro speaker.
In addition, since the various components of the multi-function micro speaker are kept in the outer cover, it is resistant to external shock and provides an effect of improving durability.
1 is a schematic cross-sectional view of a conventional multifunctional micro speaker,
2 is an exploded perspective view of a multifunctional micro speaker according to an embodiment of the present invention;
3 is a cross-sectional view of a multifunctional micro speaker according to an embodiment of the present invention;
4 is an enlarged view of a portion “A” of FIG. 2;
5 is an enlarged view of a portion “B” of FIG. 2;
FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 2.
The micro speaker 1 of the present embodiment is mainly used in a mobile communication terminal such as a cellular phone or a small device such as a PMP, and has a sound generating function and a vibration generating function as a signal at the same time. It is about one micro speaker to improve.
A multifunctional micro speaker according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 7.
2 is an exploded perspective view of a multi-function micro speaker according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the multi-function micro speaker according to an embodiment of the present invention. 4 is an enlarged view of portion “A” of FIG. 2, FIG. 5 is an enlarged view of portion “B” of FIG. 2, and FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 2.
2 and 3, the multifunction micro speaker 1 according to the embodiment of the present invention includes a
The present invention is characterized by assembling the components of the multi-function micro speaker 1 while being stacked in the
2 shows an exploded perspective view of the multifunctional micro speaker 1 according to the present invention. As shown in FIG. 2, various components of the micro speaker 1 are accommodated in the
In detail, the
The
The
The
In other embodiments, the shape of the cross section of the
In addition, as shown in Figure 3, the
The outer diaphragm of the
In the present embodiment, the
The
The lower portion of the
The
The
The first supporting
The
The
In the present embodiment, the
The
The first
The
The first
The first
The
Meanwhile, the multifunctional micro speaker 1 according to the present invention includes a
The
The
In the present embodiment, the
The
The polarity of the vertical direction of the
The
In addition, the
Hereinafter, the assembly process and operation of the multi-function micro speaker 1 according to the present invention by the above configuration will be described in detail.
Components of the multifunction micro speaker 1 are laminated and assembled from the
A
The engaging
In addition, an edge of the
Then, as shown in Figure 3, by curling the upper end of the
As described above, the multi-function micro speaker 1 according to the embodiment of the present invention stacks the components in the
In addition, in order to secure a space between the
In addition, in order to securely couple the
In addition, the cross section of the
In addition, the
In addition, the
Meanwhile, the multifunctional micro speaker according to the present invention may be spherical in various other modifications.
For example, the frame employed in the embodiment of the present invention is formed to protrude from the power supply terminal connection portion, it may be formed in a form accommodated in the outer cover. In addition, although the first support part is separately formed in the first suspension, the first support part may not be formed. Similarly, the second support may not be formed separately in the second suspension. In addition, the shape of the first and second spacers may be variously changed according to the shape of the bottom of the outer cover. In addition, in the present embodiment, the second magnet is coupled to the bottom surface of the second suspension, but may also be coupled to the top surface.
As mentioned above, although this invention was demonstrated in detail about the preferred embodiment, this invention is not limited to the said Example, A various many deformation | transformation may be provided within the range which does not deviate from the scope of the present invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.
10 ...
20 ...
40 ... the
44 The
50 ...
60 ... 1st
80 ...
90 ...
98 ...
120 ..
132 ...
140 ...
150 ... second spacer
Claims (13)
A diaphragm having an outer circumferential portion fixed to the frame;
A voice coil fixed to the lower surface of the diaphragm;
A first suspension having an outer circumference coupled to the frame and having elasticity;
A yoke fixed to the first suspension;
A first permanent magnet fixed to the bottom surface of the yoke;
A plate fixed to an upper surface of the first permanent magnet; And
And a bottom cover and a side wall, the outer cover accommodating the frame and the first suspension.
The outer cover is a multi-function micro speaker, characterized in that the upper end is bent inward with a curling portion curled.
The bottom of the outer cover, a multi-function micro speaker, characterized in that a plurality of air holes are formed.
The side wall of the outer cover, the multi-function micro speaker, characterized in that the opening is formed so that the frame is protruding.
Multifunctional micro speaker, characterized in that the insertion groove is formed along the circumferential direction of the lower surface of the frame.
The multifunction micro-speaker, characterized in that the engaging projection is inserted into the insertion groove along the edge circumferential direction of the first suspension.
In the first suspension,
It is arranged at equal intervals along the edge circumferential direction, the multi-function micro speaker, characterized in that the first support for supporting the first suspension is formed between the frame and the first spacer.
Multi-function micro speaker characterized in that it comprises an upper cover coupled to the outer peripheral portion on the upper surface of the diaphragm.
And a first spacer coupled to a bottom surface of the first suspension.
A second suspension having an outer circumferential portion coupled to a lower surface of the first spacer;
A second magnet coupled to the second suspension; And
And a second spacer having an outer circumference coupled to a lower surface of the second suspension.
The second suspension, the second magnet, and the second spacer are accommodated in the outer cover,
The lower surface of the second spacer is a multifunctional micro speaker, characterized in that coupled to the bottom of the outer cover.
The first spacer is formed in a ring shape,
The cross section of the first spacer is a multi-function micro speaker, characterized in that the rectangular shape having a rounded rounded corner.
In the second suspension,
And a second support part arranged at equal intervals along the edge circumferential direction and having a bent portion bent upwardly so that the outer end portion is fitted into the round portion.
The bottom portion of the outer cover is formed with a second boss projecting upward from the center,
The second magnet is a multi-function micro speaker, characterized in that the second boss insertion portion is formed to be inserted into the second boss portion.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100000899A KR101192397B1 (en) | 2010-01-06 | 2010-01-06 | Multi-function micro-speaker |
PCT/KR2011/000047 WO2011083960A2 (en) | 2010-01-06 | 2011-01-05 | Multifunctional microspeaker |
CN2011800001210A CN102273230A (en) | 2010-01-06 | 2011-01-05 | Multifunctional microspeaker |
TW100100577A TWI491274B (en) | 2010-01-06 | 2011-01-06 | Multi-function micro-speaker (2) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100000899A KR101192397B1 (en) | 2010-01-06 | 2010-01-06 | Multi-function micro-speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110080588A true KR20110080588A (en) | 2011-07-13 |
KR101192397B1 KR101192397B1 (en) | 2012-10-17 |
Family
ID=44305933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20100000899A KR101192397B1 (en) | 2010-01-06 | 2010-01-06 | Multi-function micro-speaker |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR101192397B1 (en) |
CN (1) | CN102273230A (en) |
TW (1) | TWI491274B (en) |
WO (1) | WO2011083960A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102242204B1 (en) * | 2019-10-23 | 2021-04-21 | 삼원액트 주식회사 | Micro-speaker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101783417B1 (en) * | 2017-04-27 | 2017-09-29 | 주식회사 블루콤 | SPICOM Composed of Linear Vibration Motor and Speaker |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100500129B1 (en) * | 2001-03-02 | 2005-07-11 | 삼성전기주식회사 | Vibration speaker |
US6862361B2 (en) * | 2001-04-05 | 2005-03-01 | Floyd John James | Audio speaker |
KR100439583B1 (en) * | 2001-12-27 | 2004-07-12 | 에스텍 주식회사 | Speaker for generating both vibration and sound |
JP2004082030A (en) * | 2002-08-28 | 2004-03-18 | Tokyo Parts Ind Co Ltd | Thin vibration generator by electromagnetic acoustic transduction, and mobile communication device equipped with the same |
KR100632480B1 (en) * | 2004-11-18 | 2006-10-16 | 황경환 | Condenser type speaker |
JP2006217287A (en) * | 2005-02-03 | 2006-08-17 | Citizen Electronics Co Ltd | Multifunctional converter |
JP2007194907A (en) * | 2006-01-19 | 2007-08-02 | Citizen Electronics Co Ltd | Electric vibration transducer |
JP5013902B2 (en) * | 2007-02-27 | 2012-08-29 | 株式会社オーディオテクニカ | headphone |
KR100962594B1 (en) * | 2007-11-13 | 2010-06-11 | 에스텍 주식회사 | Multi-function speaker |
KR100932755B1 (en) * | 2007-12-17 | 2009-12-21 | 에스텍 주식회사 | Multifunction speaker |
CN101494808A (en) * | 2008-01-24 | 2009-07-29 | 深圳富泰宏精密工业有限公司 | Loudspeaker assembly |
KR100894656B1 (en) * | 2008-05-01 | 2009-04-24 | 주식회사 예일전자 | Sensory signal output apparatus |
-
2010
- 2010-01-06 KR KR20100000899A patent/KR101192397B1/en not_active IP Right Cessation
-
2011
- 2011-01-05 WO PCT/KR2011/000047 patent/WO2011083960A2/en active Application Filing
- 2011-01-05 CN CN2011800001210A patent/CN102273230A/en active Pending
- 2011-01-06 TW TW100100577A patent/TWI491274B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102242204B1 (en) * | 2019-10-23 | 2021-04-21 | 삼원액트 주식회사 | Micro-speaker |
Also Published As
Publication number | Publication date |
---|---|
TWI491274B (en) | 2015-07-01 |
KR101192397B1 (en) | 2012-10-17 |
TW201129120A (en) | 2011-08-16 |
WO2011083960A2 (en) | 2011-07-14 |
WO2011083960A3 (en) | 2011-10-27 |
CN102273230A (en) | 2011-12-07 |
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