CN201854414U - Electromagnetic loudspeaker - Google Patents

Electromagnetic loudspeaker Download PDF

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Publication number
CN201854414U
CN201854414U CN2010205918924U CN201020591892U CN201854414U CN 201854414 U CN201854414 U CN 201854414U CN 2010205918924 U CN2010205918924 U CN 2010205918924U CN 201020591892 U CN201020591892 U CN 201020591892U CN 201854414 U CN201854414 U CN 201854414U
Authority
CN
China
Prior art keywords
magnetic
ball
speaker
basin frame
magnetic speaker
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 - Lifetime
Application number
CN2010205918924U
Other languages
Chinese (zh)
Inventor
邵益
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.)
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Acoustic Technologies Changzhou 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 CN200920261778.2 priority Critical
Priority to CN200920261778 priority
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Acoustic Technologies Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN2010205918924U priority patent/CN201854414U/en
Application granted granted Critical
Publication of CN201854414U publication Critical patent/CN201854414U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an electromagnetic loudspeaker which comprises a dome, a vibrating diaphragm, a centering disk and a speaker frame, wherein the dome is bonded with the vibrating diaphragm; the centering disk is used for supporting the vibrating diaphragm; the speaker frame is used for containing and supporting the centering disk; a ring-shaped groove is arranged at the edge of the dome; the speaker frame comprises a plurality of through holes; and the ring-shaped groove is communicated with the through holes by air. The electromagnetic loudspeaker has the advantages that the structure is simple, the cost is low, and air leakage of a sound box is not caused by the electromagnetic loudspeaker when the electromagnetic loudspeaker is applied to the sound box with small volume.

Description

Magnetic speaker
Technical field
The utility model relates to a kind of magnetic speaker.
Background technology
Be miniaturization, the multifunction development adapt to various stereo sets and information communication device, in this kind equipment employed magnetic speaker in requisition for being tending towards miniaturization more, and compact more with cooperating of described other elements of magnetic speaker periphery.Particularly along with the lightening growth requirement of mobile phone, also more and more higher to the requirement of employed magnetic speaker wherein.
Seeing also Fig. 1, is a kind of side cross-sectional schematic of the magnetic speaker relevant with the utility model, and described magnetic speaker 1 comprises ball top 10, vibrating diaphragm 11, magnetic conduction sheet 13, magnet steel 14, voice coil loudspeaker voice coil 15 and magnetic bowl 16.Described ball top 10 and described vibrating diaphragm 11 bondings, described magnet steel 14 is housed in the described magnetic bowl 16, and described magnetic conduction sheet 13 is arranged on the surface of described magnet steel 14, and described voice coil loudspeaker voice coil 15 is around described magnet steel 14.The bottom of described magnetic bowl 16 comprises through hole 162, and described through hole 162 mainly is in order to realize that ball pushes up 10 below leakage of air.
The problem that described magnetic speaker 1 exists is: form described through hole 162 in the bottom of described magnetic bowl 16, cause the manufacturing process of described magnetic speaker 1 to become complicated, thereby the corresponding manufacturing cost of described magnetic speaker 1 that makes rises.And when audio amplifier that described magnetic speaker 1 is packed into highly very little, described magnetic bowl 16 need expose described audio amplifier usually, the easy like this gas leakage that causes described audio amplifier, thus influence the quality of described audio amplifier.
The utility model content
Cause the technical problem of gas leakage when being applied to the small size audio amplifier easily, provide a kind of magnetic speaker of gas leakage that can not cause when being applied to the small size audio amplifier real for necessary at the prior art magnetic speaker.
A kind of magnetic speaker, it comprises ball top, vibrating diaphragm, centring disk and basin frame, described ball top and described vibrating diaphragm bonding, described centring disk supports described vibrating diaphragm, and described centring disk is accommodated and supported to described basin frame.The edge on described ball top comprises annular groove, and described basin frame comprises a plurality of through holes, and air communicates between described annular groove and described through hole.
As the further improvement of above-mentioned magnetic speaker, described ball top also comprises many ribs, and described many ribs are across being arranged at described ball top.
As the further improvement of above-mentioned magnetic speaker, described annular groove is around the end of described ribs.
As the further improvement of above-mentioned magnetic speaker, described annular groove only is arranged on the lower surface on described ball top.
As the further improvement of above-mentioned magnetic speaker, described basin frame comprises a step, and described step is divided into the first half and the latter half with described basin frame, and described centring disk is contained in the first half of described basin frame.
As the further improvement of above-mentioned magnetic speaker, described through hole is arranged at described step.
As the further improvement of above-mentioned magnetic speaker, further comprise magnet steel and magnetic bowl, described magnet steel is contained in described magnetic bowl, and described magnetic bowl is contained in the latter half of described basin frame.
As the further improvement of above-mentioned magnetic speaker, described magnetic bowl comprises diapire and annular sidewall, and described diapire is complete slab construction, thereby described annular sidewall is around described bottom wall edge and the described magnetic bowl of the common formation of described diapire.
In the magnetic speaker of the present utility model, the edge on described ball top comprises described annular groove, forming part between itself and the described voice coil loudspeaker voice coil leaks, the air of below, described ball top is revealed away by the described through hole of described basin frame, so described magnetic speaker of the present utility model need be in the described diapire perforate of described magnetic bowl, its structure is comparatively simple, and the cost correspondence is lower.And, when described magnetic speaker is installed in the very little audio amplifier of volume,, can not cause described audio amplifier gas leakage even described magnetic bowl exposes described audio amplifier yet, guaranteed the sound quality of described audio amplifier.
In sum, the magnetic speaker of present embodiment have simple in structure, cost is low and be applied to the small size audio amplifier and can not cause advantages such as audio amplifier gas leakage.
Description of drawings
Fig. 1 is a kind of side cross-sectional schematic of the magnetic speaker relevant with the utility model.
Fig. 2 is the perspective exploded view of the utility model magnetic speaker one better embodiment.
Fig. 3 is the schematic perspective view after the ball of magnetic speaker shown in Figure 2 is knocked over commentaries on classics.
Fig. 4 is the side cross-sectional schematic after the magnetic speaker assembling shown in Figure 2.
Fig. 5 is the local enlarged diagram of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing magnetic speaker structure of the present utility model is described.
Seeing also Fig. 2, is the perspective exploded view of the utility model magnetic speaker one better embodiment.Described magnetic speaker 2 comprises ball top 20, vibrating diaphragm 21, centring disk 22, magnetic conduction sheet 23, magnet steel 24, voice coil loudspeaker voice coil 25, magnetic bowl 26 and basin frame 27.
Described basin frame 27 is one to adopt the support body of the tool receiving space (indicating) that plastics make, described receiving space both ends open.Described basin frame 27 forms a step 270 in described receiving space, described step 270 is divided into two parts up and down with described receiving space, and is provided with through hole 273 in the both sides of step 270.
Described ball top 20, described vibrating diaphragm 21 and described centring disk 22 are formed the vibrational system of described magnetic speaker 2.Described centring disk 22 is elastic plate basin framves 27, and its integral body is hollow ring, and described annular section is provided with pierced pattern, to guarantee airflow.The outline of described centring disk 22 is corresponding with described step 270 edges of described basin frame 27.
Described vibrating diaphragm 21 is a hollow annular structure equally, and the outer ledge of described circulus is corresponding to the outline of described centring disk 22, and described circulus is bonding by adhesive and described centring disk 22.
Described ball top 20 covers with described vibrating diaphragm 21, and described ball top 20 is positioned at the hollow region of described vibrating diaphragm 21, and the two cooperation surrounds a lid, and centring disk 22 fixed supports by bonding together with it form described vibrational system simultaneously.Seeing also Fig. 3, is the perspective view after 20 upsets of ball shown in Figure 2 top, and described ball top 20 comprises many ribs 202 and annular groove 204.Described ribs 202 is for hard material makes, and such as metal, described many ribs 202 are parallel to each other across being arranged at described ball top 20.Described annular groove 204 is distributed in the edge that described ball pushes up 20 lower surfaces, and it pushes up 20 around the two ends of described ribs 202 but see through described ball.
Described magnetic conduction sheet 23, described magnet steel 24 and described magnetic bowl 26 form the magnetic circuit system of described magnetic speaker 2.
Described magnetic bowl 26 comprises diapire 260 and annular sidewall 262, described diapire 260 is complete slab construction, it is not provided with through hole 273 structures, and described annular sidewall 262 is around the edge of described diapire 260, and surrounds an ostiolate receiving space (indicating) jointly with described diapire 260.Described magnetic bowl 26 is housed in the lower part of the receiving space of described basin frame 27.
Described magnet steel 24 and the superimposed setting of described pole piece, and corresponding being contained in the receiving space of described magnetic bowl 26, described magnet steel 24 is sandwiched between described magnetic bowl 26 and the described pole piece.
Described voice coil loudspeaker voice coil 25 is circuluses, its contiguous described ball top 20, and around described magnet steel 24 settings.The main effect of described voice coil loudspeaker voice coil 25 is can correspondingly produce magnetic field after energising, and it is made by copper product usually.
See also Fig. 4 and Fig. 5, Fig. 4 is the side cross-sectional schematic after magnetic speaker 2 assemblings shown in Figure 2, and Fig. 5 is the local enlarged diagram of Fig. 4.After described magnetic speaker 2 assemblings, the outer ledge on the inside edge of described centring disk 22 and described ball top 20 is bonding, and its outer ledge and described vibrating diaphragm 21 are bonding, and described ball top 20 and vibrating diaphragm 21 are fixed and supported to described centring disk 22 correspondences.Described magnet steel 24 and described magnetic conduction sheet 23 be superimposed to be housed in the receiving space of described magnetic bowl 26, forms a column gap between the side surface of described magnetic bowl 26 inner surfaces and described magnet steel 24, and described gap is the magnetic gap of described magnetic circuit system.Described voice coil loudspeaker voice coil 25 is around described magnet steel 24 and described magnetic conduction sheet 23.
In the magnetic speaker 2 of present embodiment, the edge on described ball top 20 comprises described annular groove 204, form part between itself and the described voice coil loudspeaker voice coil 25 and leak, the air that so just can make described ball push up 20 belows is revealed away by the described through hole 273 of described basin frame 27.This ball top 20 designs of the magnetic speaker 2 of present embodiment need be in 260 perforates of described magnetic bowl 26 diapires, so its structure is comparatively simple, the cost correspondence is lower.And, when described magnetic speaker 2 is installed in the audio amplifier, when especially being installed in the very little audio amplifier of volume,, can not cause described audio amplifier gas leakage even described magnetic bowl 26 exposes described audio amplifier yet, guaranteed the sound quality of described audio amplifier.
In sum, the magnetic speaker 2 of present embodiment have simple in structure, cost is low and be applied to the small size audio amplifier and can not cause advantages such as audio amplifier gas leakage.
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 (8)

1. magnetic speaker, it comprises ball top, vibrating diaphragm, centring disk and basin frame, described ball top and described vibrating diaphragm bonding, described centring disk supports described vibrating diaphragm, described centring disk is accommodated and supported to described basin frame, it is characterized in that: the edge on described ball top comprises annular groove, and described basin frame comprises a plurality of through holes, and air communicates between described annular groove and described through hole.
2. magnetic speaker according to claim 1 is characterized in that: described ball top also comprises many ribs, and described many ribs are across being arranged at described ball top.
3. magnetic speaker according to claim 2 is characterized in that: described annular groove is around the end of described ribs.
4. magnetic speaker according to claim 3 is characterized in that: described annular groove only is arranged on the lower surface on described ball top.
5. magnetic speaker according to claim 4 is characterized in that: described basin frame comprises a step, and described step is divided into the first half and the latter half with described basin frame, and described centring disk is contained in the first half of described basin frame.
6. magnetic speaker according to claim 5 is characterized in that: described through hole is arranged at described step.
7. magnetic speaker according to claim 5 is characterized in that: further comprise magnet steel and magnetic bowl, described magnet steel is contained in described magnetic bowl, and described magnetic bowl is contained in the latter half of described basin frame.
8. magnetic speaker according to claim 7 is characterized in that: described magnetic bowl comprises diapire and annular sidewall, and described diapire is complete slab construction, thereby described annular sidewall is around described bottom wall edge and the described magnetic bowl of the common formation of described diapire.
CN2010205918924U 2009-12-21 2010-11-04 Electromagnetic loudspeaker Expired - Lifetime CN201854414U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200920261778.2 2009-12-21
CN200920261778 2009-12-21
CN2010205918924U CN201854414U (en) 2009-12-21 2010-11-04 Electromagnetic loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205918924U CN201854414U (en) 2009-12-21 2010-11-04 Electromagnetic loudspeaker

Publications (1)

Publication Number Publication Date
CN201854414U true CN201854414U (en) 2011-06-01

Family

ID=44096792

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205918924U Expired - Lifetime CN201854414U (en) 2009-12-21 2010-11-04 Electromagnetic loudspeaker

Country Status (1)

Country Link
CN (1) CN201854414U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108810771A (en) * 2018-08-14 2018-11-13 瑞声科技(新加坡)有限公司 Microphone device
CN109151673A (en) * 2018-08-14 2019-01-04 瑞声科技(新加坡)有限公司 Microphone device
WO2020140543A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Speaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108810771A (en) * 2018-08-14 2018-11-13 瑞声科技(新加坡)有限公司 Microphone device
CN109151673A (en) * 2018-08-14 2019-01-04 瑞声科技(新加坡)有限公司 Microphone device
WO2020140543A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Speaker

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170418

Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8

Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd.

Patentee after: AAC Technologies (Singapore) Co., Ltd.

Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18

Co-patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd.

Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd.

Effective date of registration: 20170418

Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8

Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd.

Patentee after: AAC Technologies (Singapore) Co., Ltd.

Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18

Co-patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd.

Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110601