CN202514066U - Multifunctional mini-size loudspeaker - Google Patents

Multifunctional mini-size loudspeaker Download PDF

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Publication number
CN202514066U
CN202514066U CN2011201475245U CN201120147524U CN202514066U CN 202514066 U CN202514066 U CN 202514066U CN 2011201475245 U CN2011201475245 U CN 2011201475245U CN 201120147524 U CN201120147524 U CN 201120147524U CN 202514066 U CN202514066 U CN 202514066U
Authority
CN
China
Prior art keywords
voice coil
central
yoke
fixed
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201475245U
Other languages
Chinese (zh)
Inventor
金圭东
洪振赫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BO SUNG ELECTRICS Co Ltd
BSE Co Ltd
Original Assignee
DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BO SUNG ELECTRICS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020100065952A priority Critical patent/KR20120005288A/en
Priority to KR10-2010-0065952 priority
Application filed by DONGGUAN BAOXING ELECTRONICS Co Ltd, RONGCHENG BAOXING ELECTRONIC CO Ltd, TIANJIN BSE ELECTRONICS CO Ltd, BO SUNG ELECTRICS Co Ltd filed Critical DONGGUAN BAOXING ELECTRONICS Co Ltd
Application granted granted Critical
Publication of CN202514066U publication Critical patent/CN202514066U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • H04R9/066Loudspeakers using the principle of inertia
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/07Suspension between moving magnetic core and housing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/11Aspects regarding the frame of loudspeaker transducers

Abstract

The utility model relates to a multifunctional mini-size loudspeaker. The multifunctional mini-size loudspeaker provided by the utility model includes a frame; a suspension piece provided with an edge part fixed on the frame, a central part disposed in a position higher than the position of the edge part, and an elastic inclined part connecting the edge part with the central part; a yoke fixed on the upper surface of the central part of the suspension piece and provided with a receiving groove; a counter weight part arranged on the outer periphery of the yoke; a permanent magnet arranged in the receiving groove of the yoke; a board combined with the upper surface of the permanent magnet; a vibration board having an edge part fixed on the upper part of the frame; and a voice coil fixed on the lower surface of the vibration board.

Description

Multi-function micro speaker
Technical field
The utility model relates to multi-function micro speaker; Relate more specifically to following multi-function micro speaker: possess central part the suspend part higher than edge part; And configuration comprises the parts of counterweight at an upper portion thereof; Increase the weight of counterweight thus easily, thereby can effectively control the improvement of vibration force and the change of vibration frequency.
Background technology
Usually, loud speaker is to be the device of voice signal with electrical signal conversion.Microspeaker is mainly to be used in the for example miniature loudspeaker in the portable audio equipment that significantly increases of demand in recent years such as mobile phone, notebook computer, MP3 player, earphone of the little stereo set of size.
But the mobile communication terminal that possesses the electronic product in recent years, particularly mobile phone and so on of Microspeaker must possess the structure that is used to produce vibration signal.That is, nearest mobile communication terminal possesses to be used for producing and replaces the incoming telephone signal sound and the frequent vibration signal that uses or in structure from the vibration signal of input state to the touch-screen of the direct input information of picture that confirm.
Microspeaker according to the utility model is meant on the basis of the Microspeaker in the past that possesses the structure of sounding, and also possesses the loud speaker of the structure that is used to produce vibration signal.Microspeaker is called as multi-functional transmission device or multifunction electronic acoustic transducer etc.
The structure of the multi-function micro speaker of structure in the past for obtaining to vibrate through the vibrating body resonance that makes by disc spring supporting.Multi-function micro speaker adopted in the past general like this is following mode: have voice coil loudspeaker voice coil having and be called on the magnetic circuit of a side of oscillating plate of the plate that quivers; When output sound equipment when this voice coil loudspeaker voice coil applies voice signal with electric current, when when this voice coil loudspeaker voice coil applies vibration signal with electric current, producing vibration.
Below, with reference to Fig. 1, the multi-function micro speaker of structure is in the past described.Multi-function micro speaker 100 in the past comprises: permanent magnet 104, plate 103, yoke 105, counterweight 106, the upside that housing 110, sounding dispose the N utmost point and the S utmost point with oscillating plate 101, voice coil loudspeaker voice coil 102, with above-below direction part 107 and the downside part 108 that suspends that suspends.Apply electric current through a lead-in wire 114 and b lead-in wire 115 to voice coil loudspeaker voice coil 102.
The upper end of said voice coil loudspeaker voice coil 102 be fixed on oscillating plate below, extend downwards with the mode of reeling.Plate 103 be fixed in permanent magnet 104 above.Permanent magnet 104 and plate 103 and the yoke 105 common magnetic circuits that form loud speaker.The counterweight 106 and permanent magnet 104, plate 103, yoke 105 common formation vibrating bodies that are called mass or hammer.Through upside suspend part 107 and downside suspend part 108 and with the vibrating body elastic bearing in said housing 110.
When through a lead-in wire 114 with b lead-in wire 115 when the voice coil loudspeaker voice coil 102 of the multi-function micro speaker 100 of this structure applies electric current, produce electromagnetic force on the voice coil loudspeaker voice coil 102 in magnetic circuit, vibration and output sound equipment take place in oscillating plate 101 thus.
That is the magnetic line of force that, sends from the N utmost point of permanent magnet 104 forms the magnetic field towards the S of permanent magnet 104 utmost point through plate 103, voice coil loudspeaker voice coil 102 and yoke 105 successively.At this moment, produce interaction with the magnetic flux that is produced by magnetic circuit when on voice coil loudspeaker voice coil 102, producing electromagnetic force, the oscillating plate 101 that is fixed in voice coil loudspeaker voice coil 102 vibrates, thereby realizes the loudspeaker function of output sound equipment.
In addition, when voice coil loudspeaker voice coil 102 applies low-frequency current, make to comprise that the vibrating body of the permanent magnet 104, plate 103, yoke 105 and the counterweight 106 that constitute magnetic circuit moves up and down with b lead-in wire 115 through a lead-in wire 114, thereby produce vibration.
In above-mentioned multi-function micro speaker in the past, because the structure of the position of the part 107,108 that suspends and the counterweight of portion's combination within it when needs increase the weight of counterweight, needs to strengthen the outer dia of loud speaker with general structure.
In addition, strengthen for the weight that increases counterweight under the situation of width of above-below direction, can produce and oscillating plate 101 etc. between interference.
The utility model content
The utility model is researched and developed in order to address the above problem a little; The purpose of the utility model is the multi-function micro speaker that provides following: higher and edge part is fixed in the part that suspends of framework than the edge through possessing central part; Under the situation that does not increase whole outer dia; Also can increase and regulate the weight of counterweight easily, effectively control the improvement of vibration force and the change of vibration frequency thus.
In order to achieve the above object, the multi-function micro speaker of the utility model is characterised in that and comprises: framework; The part that suspends, it has edge part that is fixed in said framework and the central part that is positioned at the position higher than said edge part and is connected said edge part and said central part and rubber-like rake; Yoke, its be fixed in the said part that suspends central part above, and have accommodating groove; Counterweight portion, it is disposed at the peripheral part of said yoke; Permanent magnet, it is disposed in the accommodating groove of said yoke; Plate, it combines with the top of said permanent magnet; Oscillating plate, its edge part is fixed in the top of said framework; And voice coil loudspeaker voice coil, its be fixed in said oscillating plate below.
In addition, preferably, the outer shape of the edge part of the said part that suspends is actual, and said central part is smooth for circular, and said rake possesses a plurality of breakthrough parts that prolong along circumferencial direction.
In addition, preferably, the external shape that the said part that suspends constitutes is actual to be truncated cone shape.
In addition, preferably, said framework comprises: lower section frame, and it is fixed with the said part that suspends; Central frame, it is fixed with said oscillating plate; And frame cover, it forms the shape that covers said oscillating plate.
In addition, preferably, said yoke and counterweight portion form as one.
In addition, preferably, said permanent magnet is positioned at the upside of the central part of the said part that suspends, and said counterweight portion is positioned at the upside of the rake of the said part that suspends.
According to the multi-function micro speaker of the utility model, can do not produce and miscellaneous part between the situation of interference under increase the weight of counterweight.
In addition, owing to increase and regulate the weight of counterweight easily, therefore can effectively control the improvement of vibration force and the change of vibration frequency.
Description of drawings
Fig. 1 is the diagrammatical profile of multi-function micro speaker in the past.
Fig. 2 is the diagrammatical exploded perspective view according to the multi-function micro speaker of an embodiment of the utility model.
Fig. 3 is the diagrammatical profile of assembled state of the multi-function micro speaker of Fig. 2.
Symbol description
1 multi-function micro speaker; 10 frameworks; 20 parts that suspend; 22 edge parts; 24 central parts; 26 rakes; 30 yokes; 40 counterweight portions; 50 permanent magnets; 60 plates; 70 oscillating plates; 80 voice coil loudspeaker voice coils
Embodiment
Below, specify multi-function micro speaker with reference to Fig. 2 and Fig. 3 according to an embodiment of the utility model.
Fig. 2 is the diagrammatical profile according to the multi-function micro speaker of an embodiment of the utility model, and Fig. 3 is the diagrammatical exploded perspective view of the multi-function micro speaker of Fig. 2.
Multi-function micro speaker 1 according to present embodiment mainly is used in mini-plants such as mobile communication terminals such as mobile phone or PMP, has the sound equipment generation function and the signal vibration generation function of loud speaker simultaneously.
Multi-function micro speaker 1 comprises: framework 10; Part (suspension) 20 suspends; Yoke (yoke) 30; Counterweight portion 40; Permanent magnet 50; Plate 60; Oscillating plate 70; And voice coil loudspeaker voice coil 80.
Said framework 10 is made up of plastics usually, and this framework 10 constitutes the profile of loud speaker, at the various component parts of internal fixation.Under the situation of present embodiment, framework 10 forms flat drum on the whole.
Under the situation of present embodiment, framework 10 is made up of lower section frame 12 and central frame 14 and frame cover 16.But, under the situation of other embodiment, as required, can central frame 14 and lower section frame 12 be formed as one.
On the inner bottom surface of said lower section frame 12, be fixed with the edge part 22 of the part 20 that suspends.On central frame 14, be fixed with the edge part 72 of oscillating plate 70.And, on central frame 14, possess a pair of terminal 15.On terminal 15, be electrically connected with voice coil loudspeaker voice coil 80.On terminal 15, be connected with outside electric wire, thereby the outside signal of telecommunication is communicated to voice coil loudspeaker voice coil 80.
Frame cover 16 forms the shape that the outside with oscillating plate 70 integrally covers, and this frame cover 16 combines with the outer ledge of central frame 14.Between the peripheral part that the peripheral part of oscillating plate 70 sandwiches frame cover 16 and the peripheral part of central frame 14 and realize combining.
The said part 20 that suspends be positioned at framework 10 inside below.The part 20 that suspends is made up of edge part 22 and central part 24 and rake 26.
Edge part 22 is fixed in the inside bottom surface of lower section frame 22.Under the situation of present embodiment, the outer shape of edge part 22 is actual to be circular.Actual in circle is not to be illustrated in said complete circle on the mathematics, but expression looks like round shape usually.In addition, under the situation of other embodiment, edge part can form multiple shape as required except circle, for example can be ellipse or trade shape, also can be the square shape that the bight forms circular arc.
Central part 24 is positioned at the position higher than edge part 22.Central part 24 is smooth.The shape of central part 24 is actually near circular shape.And the edge part 22 with difference in height is connected to each other according to rake 26 with central part 24.
Rake 26 is made up of the rubber-like parts.At this, " elasticity " be meant, when from the outside when object applies power the volume of object and shape change, and when this power of releasing, to return to the character of original shape, be divided into the volume elasticity and the elasticity of shape according to mode of deformation.Under the situation of the utility model, rake 26 is main relevant with the elasticity of shape.
Therefore, top yoke 30 grades that are fixed in central part 24 part 20 elastic bearings that suspended.Under the situation of present embodiment, rake 26 has a plurality of breakthrough parts 28 that prolong along circumferencial direction.As long as the shape of adjustment breakthrough part 28 then can be adjusted the elastic force that yoke 30 grades of central part 24 are fixed in supporting.
Under the situation of present embodiment, the parts that edge part 22 and central part 24 and rake 26 form as one.Therefore, not only rake 26 has elasticity, and edge part 22 also all forms the rubber-like parts with central part 24.
In addition; Under the situation of other embodiment; Can as required edge part, central part, rake not formed as one; Be bonded to each other after the independent parts and constitute but form respectively, perhaps also wherein any two parts and parts form independent parts and are bonded to each other afterwards and constitute.
Under the situation of present embodiment, the shape of the remaining frustum of a cone is similar with from circular cone, removing upper part on the whole for the shape of the exterior contour of the part 20 that suspends.The constitutive requirements of top yoke 30 grades that are fixed in central part 26 are like part 20 elastic bearings that suspended by the last end bearing ground of the spring of coil shape, and vibrate according to the signal that is input to voice coil loudspeaker voice coil 80.
Said yoke (yoke) 30 be fixed in the part 20 that suspends central part 24 above.The accommodating groove 32 that possesses depression in the inboard of yoke 30.Yoke 30 is made up of the good material of magnetic.
Said counterweight portion 40 is positioned at the peripheral part of yoke 30.Counterweight portion 40 is known as counterweight, mass, awl etc. again.As long as regulate the weight of counterweight portion 40, extent of vibration that just can adjustment yoke 30 grades.
Under the situation of present embodiment, counterweight portion 40 forms as one with yoke 30.But under the situation of other embodiment, counterweight portion can form the peripheral part that is combined in yoke with the yoke various parts.In addition, counterweight portion can and form by the combination of the parts more than 2.
Said permanent magnet 50 forms disc-shape, so that corresponding with the accommodating groove 32 of yoke 30.Permanent magnet 50 is fixed in the inner bottom surface of yoke 30.
Said plate 60 has the diameter roughly the same with permanent magnet 50, and be fixed in permanent magnet 50 above.Plate 60 is made up of the good material of magnetic.
Permanent magnet 50 and plate 60 are fixed with the inner webs partition distance of yoke 30.Between the madial wall of the lateral surface of permanent magnet 50 and plate 60 and yoke 30, be formed with the space, the bottom of voice coil loudspeaker voice coil 80 is positioned at this space.
In addition, permanent magnet 50, plate 60 and yoke 30 constitute the magnetic circuit of loud speaker.That is the magnetic flux that, is produced by permanent magnet 50 forms the flux path (path) that gets into yoke 30 through plate 60.
Said oscillating plate 70 carries out up-down vibration and produces the acoustic pressure that people can hear.The edge part 72 of oscillating plate 70 is fixed in framework 10 in the above described manner.Oscillating plate 70 is made up of macromolecular compound usually.
The oscillating plate 70 of present embodiment is a benchmark with the boundary member of the upper end of combination voice coil loudspeaker voice coil 80, is divided into being positioned at inboard inside part 74 and the Outboard Sections 76 that is positioned at the outside.Inside part 74 forms arch (dome) respectively with Outboard Sections 76, and boundary member is smooth.Oscillating plate 70 can carry out various distortion on concrete shape, material and thickness.
Said voice coil loudspeaker voice coil 80 be fixed in oscillating plate 70 below.The upper end of voice coil loudspeaker voice coil 80 be fixed in oscillating plate 70 boundary member below.Voice coil loudspeaker voice coil 80 is reeled lead and is formed with above-below direction.Voice coil loudspeaker voice coil 80 is electrically connected with terminal 15 on being formed on framework 10.Voice coil loudspeaker voice coil 80 receives the electric current from the outside through terminal 15.
The bottom of voice coil loudspeaker voice coil 80 is positioned at permanent magnet 50 and the mezzanine space of plate 60 with yoke 30.When voice coil loudspeaker voice coil 80 flowed high-frequency current, according to the correlation between the magnetic field that is produced by permanent magnet 50, voice coil loudspeaker voice coil 80 moved towards above-below direction.Thus, the oscillating plate 70 that combines with voice coil loudspeaker voice coil 80 vibrates and the generation sound equipment.
Below, the effect and the effect of the multi-function micro speaker 1 of structure describe to having as above.
In the multi-function micro speaker 1 of present embodiment; Possesses the central part of forming 24 than edge part 22 height; And the part 20 that suspends that connects the shape of these central parts 24 and edge part 22 by rubber-like rake 26; On this top that suspends part 20 yoke 30, permanent magnet 50, plate 60 and counterweight portion 40 are set, thus do not produce and miscellaneous part between the situation of interference under, can increase the weight of counterweight portion 40.
That is, yoke 30 is fixed in the central part 24 of the part 20 that suspends, and counterweight portion 40 is positioned at the peripheral part of yoke 20.Thereby counterweight portion 40 is disposed at the top of the rake 26 of the part 20 that suspends with the mode with rake 26 partition distance.Thus, counterweight portion 40 can strengthen volume downwards and gain in weight under the situation that does not strengthen its diameter towards rake 26.Its result, the external diameter that does not increase Microspeaker and do not produce and miscellaneous part between the situation of interference under, can increase the weight of counterweight portion 40.
Owing to can regulate the weight of counterweight portion 40 easily, therefore can effectively control the improvement of vibration force and the change of vibration frequency.

Claims (7)

1. a multi-function micro speaker is characterized in that, this multi-function micro speaker comprises:
Framework;
The part that suspends, it has: be fixed in said framework edge part, be positioned at the central part of the position higher and connect said edge part and said central part and rubber-like rake than said edge part;
Yoke, its be fixed in the said part that suspends central part above, and have accommodating groove;
Counterweight portion, it is disposed at the peripheral part of said yoke;
Permanent magnet, it is disposed in the accommodating groove of said yoke;
Plate, it combines with the top of said permanent magnet;
Oscillating plate, its edge part is fixed in the top of said framework; And
Voice coil loudspeaker voice coil, its be fixed in said oscillating plate below.
2. multi-function micro speaker according to claim 1 is characterized in that,
The outer shape of the edge part of the said part that suspends is actual in circular,
Said central part is smooth,
Said rake possesses a plurality of breakthrough parts that prolong along circumferencial direction.
3. multi-function micro speaker according to claim 1 is characterized in that,
The external shape that the said part that suspends constitutes is actual to be truncated cone shape.
4. multi-function micro speaker according to claim 1 is characterized in that,
Said framework comprises: lower section frame, and it is fixed with the said part that suspends; Central frame, it is fixed with said oscillating plate; And frame cover, it forms the shape that covers said oscillating plate.
5. multi-function micro speaker according to claim 1 is characterized in that,
Said yoke and counterweight portion form as one.
6. multi-function micro speaker according to claim 1 is characterized in that,
Said counterweight portion is combined by the parts more than 2 and forms.
7. multi-function micro speaker according to claim 1 is characterized in that,
Said permanent magnet is positioned at the upside of the central part of the said part that suspends,
Said counterweight portion is positioned at the upside of the rake of the said part that suspends.
CN2011201475245U 2010-07-08 2011-05-10 Multifunctional mini-size loudspeaker Expired - Fee Related CN202514066U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020100065952A KR20120005288A (en) 2010-07-08 2010-07-08 Multi-function micro-speaker
KR10-2010-0065952 2010-07-08

Publications (1)

Publication Number Publication Date
CN202514066U true CN202514066U (en) 2012-10-31

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ID=45429154

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2011201475245U Expired - Fee Related CN202514066U (en) 2010-07-08 2011-05-10 Multifunctional mini-size loudspeaker
CN2011101201076A Pending CN102316401A (en) 2010-07-08 2011-05-10 Multi-function micro speaker

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN2011101201076A Pending CN102316401A (en) 2010-07-08 2011-05-10 Multi-function micro speaker

Country Status (3)

Country Link
KR (1) KR20120005288A (en)
CN (2) CN202514066U (en)
WO (1) WO2012005433A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102946580A (en) * 2012-11-15 2013-02-27 深圳市盛泰兴业科技有限公司 Frequency demultiplier
KR101775427B1 (en) * 2016-06-30 2017-09-07 이성수 Speaker Unit
CN109379679B (en) * 2018-09-30 2021-10-19 瑞声科技(新加坡)有限公司 Sound production device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4592088B2 (en) * 2005-05-30 2010-12-01 シチズン電子株式会社 Vibrator
KR100962594B1 (en) * 2007-11-13 2010-06-11 에스텍 주식회사 Multi-function speaker
KR100932754B1 (en) * 2007-12-12 2009-12-21 에스텍 주식회사 Multifunction speaker

Also Published As

Publication number Publication date
KR20120005288A (en) 2012-01-16
CN102316401A (en) 2012-01-11
WO2012005433A2 (en) 2012-01-12
WO2012005433A3 (en) 2012-03-01

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121031

Termination date: 20200510

CF01 Termination of patent right due to non-payment of annual fee