CN204616081U - Loud speaker - Google Patents
Loud speaker Download PDFInfo
- Publication number
- CN204616081U CN204616081U CN201520258505.8U CN201520258505U CN204616081U CN 204616081 U CN204616081 U CN 204616081U CN 201520258505 U CN201520258505 U CN 201520258505U CN 204616081 U CN204616081 U CN 204616081U
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- CN
- China
- Prior art keywords
- frame
- loud speaker
- pole piece
- injection moulding
- voice coil
- 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
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Abstract
The utility model relate to a kind of loud speaker, it comprises frame and the magnetic circuit system be contained in this frame and vibrational system, described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, described magnetic circuit system comprises ring and establishes the magnet steel of described voice coil loudspeaker voice coil outer circumferential side and attach the pole piece of this magnet steel upper surface, described pole piece and frame integrated injection molding, described pole piece comprises towards the first upper surface of vibrating diaphragm and the first lower surface of being oppositely arranged with this first upper surface, described pole piece extends the injection moulding portion of injection moulding in frame to frame direction, this injection moulding portion comprises the second upper surface towards vibrating diaphragm, this first upper surface is greater than the height of described second upper surface relative to the first lower surface relative to the height of the first lower surface.The loud speaker that the utility model provides, its edge extends the injection moulding portion of injection moulding in frame, pole piece not only can be made to be combined with frame more firm, but also can ensure that pole piece upper surface and pad interval are enough large, and then greatly improve the stability of loud speaker.
Description
[technical field]
The utility model relates to a kind of electroacoustic transduction field, particularly relates to a kind of loud speaker.
[background technology]
Along with the fast development of science and technology, the popularity rate of audio frequency apparatus is more and more higher, and the requirement of people to audio frequency apparatus is not limited only to the broadcasting of video/audio, more requires to propose more requirements to the reliability of audio frequency apparatus.Especially the arrival in 3G epoch, Technology of Mobile Multimedia also develops thereupon, and a lot of audio frequency apparatus has multiple amusement function, as video playback, digital vedio recording, game, GPS navigation etc., all requires that the electronic devices and components in audio frequency apparatus are more and more accurate and compact.
In audio frequency apparatus, loud speaker is a kind of conventional electronic devices and components, is mainly used in the broadcasting of audio signal.But existing loud speaker, especially twin magnetic circuit speaker, when falling, the magnet steel in magnetic circuit system is easily shifted, therefore in current twin magnetic circuit speaker, widely use the technique of pole piece and frame integrated injection molding, strengthen the structural stability of magnetic circuit system with this.But because the frame in present Microspeaker is very little, after frame and pole piece integrated injection molding, the space that frame leaves pad for is just very narrow and small, make pad and pole piece too close, be unfavorable for the welding of pad, and if pole piece and weld tabs spacing distance will be made under the prerequisite not changing frame size enough far away, pole piece can be made again to be combined with frame firm not.
Therefore, be necessary to provide a kind of novel loud speaker.
[utility model content]
The purpose of this utility model is to provide a kind of loud speaker, and it makes frame upper surface area too small for solving current loud speaker after pole piece and frame integrated injection molding, does not have the technical problem of enough other components and parts of space mounting.
In order to solve the problems of the technologies described above, the utility model provides a kind of loud speaker, it comprises frame and the magnetic circuit system be contained in this frame and vibrational system, described vibrational system comprises vibrating diaphragm and drives the voice coil loudspeaker voice coil of this diaphragm oscillations, described magnetic circuit system comprises ring and establishes the magnet steel of described voice coil loudspeaker voice coil outer circumferential side and attach the pole piece of this magnet steel upper surface, described pole piece and frame integrated injection molding, described pole piece comprises towards the first upper surface of vibrating diaphragm and the first lower surface of being oppositely arranged with this first upper surface, described pole piece extends the injection moulding portion of injection moulding in frame to frame direction, this injection moulding portion comprises the second upper surface towards vibrating diaphragm, this first upper surface is greater than the height of described second upper surface relative to the first lower surface relative to the height of the first lower surface.
Preferably, described loud speaker also comprises and is embedded at described frame and for realizing described loud speaker and the extraneous pad be electrically connected, the part that described pad closes on from described pole piece in described injection moulding portion is extended.
Preferably, described pad and described frame integrated injection molding.
Preferably, described frame comprises towards the 3rd upper surface of described vibrating diaphragm and the 3rd lower surface that is oppositely arranged with the 3rd upper surface, and described weld tabs comprises the 4th upper surface being exposed to described 3rd upper surface.
Preferably, described first upper surface and the 3rd upper surface are positioned at same level.
Preferably, described pad comprise partial denudation in the first weld tabs portion of described 3rd upper surface, partial denudation in the second weld tabs portion of described 3rd lower surface, connect described first weld tabs portion and the second weld tabs portion connecting portion and from described second weld tabs portion towards first direction, weld tabs portion bending extend injection moulding rib.
Preferably, the rectangular ring-type of described pole piece, it is provided with four turnings, and two turnings in these four turnings are recessed to form by direction inside lateral breach of stepping down, breach of stepping down described in described injection moulding portion is positioned at.
Preferably, breach of stepping down described in described pad correspondence is arranged.
Preferably, described magnetic circuit system also comprise by described voice coil loudspeaker voice coil around center magnet steel and attach the center pole piece on magnet steel surface, described center.
The beneficial effects of the utility model are: the loud speaker that the utility model provides, its edge extends the injection moulding portion of injection moulding in frame, not only pole piece can be made to be combined with frame more firm, but also can ensure that pole piece upper surface and pad interval are enough large, and then greatly improve the stability of loud speaker.
[accompanying drawing explanation]
Fig. 1 is the exploded view of the utility model loud speaker;
Fig. 2 is the cutaway view of loud speaker shown in Fig. 1;
Fig. 3 is the enlarged drawing of part A in Fig. 2;
Fig. 4 is the stereogram of pad in loud speaker shown in Fig. 1;
Fig. 5 is the stereogram of pole piece in loud speaker shown in Fig. 1;
Fig. 6 is the installation diagram of pole piece in loud speaker shown in Fig. 1, frame and pad.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the utility model provides a kind of loud speaker 1, and it comprises frame 10, be contained in magnetic circuit system in this frame 10 and vibrational system, be embedded at described frame 10 and for realizing described loud speaker with the extraneous pad 11 that is electrically connected and form the protecgulum 12 of accommodating described vibrational system and magnetic circuit system with the assembly of described frame 10.
Described vibrational system comprises vibrating diaphragm 13 and drives the voice coil loudspeaker voice coil 14 of this vibrating diaphragm 13 vibration.Described magnetic circuit system comprise the magnet steel 15 arranged around described voice coil loudspeaker voice coil 14, the pole piece 16 attaching this magnet steel 15 surface, by described voice coil loudspeaker voice coil 14 around center magnet steel 17, attach the center pole piece 18 on magnet steel 17 surface, described center and the yoke 19 for supporting described magnet steel 15 and center magnet steel 17.Wherein, described pole piece 16 and frame 10 integrated injection molding, greatly can promote the bond strength of pole piece 16 and frame 10 like this, and then promote the structural stability of whole magnetic circuit system.
With reference to Fig. 1,2, shown in 3 and 5, described pole piece 16 comprises the first upper surface 160 towards vibrating diaphragm 13 and first lower surface 161 relative with this first upper surface 160, described pole piece 16 extends the injection moulding portion 162 of injection moulding in frame 10 to frame direction, preferably, the part that described pad 11 closes on from described pole piece 16 in described injection moulding portion 162 is extended.This injection moulding portion 162 comprises towards the second upper surface 1620 of vibrating diaphragm 13 and the second lower surface 1621 of being oppositely arranged with this second upper surface 1620, the height of relative first lower surface 161 of this first upper surface 160 is greater than the height of described second upper surface 1620 relative to the first lower surface 161, preferably, this first lower surface 161 and the second lower surface 1621 are positioned at same level, the pole piece edge formation step shape structure of described pad 11 can be closed on like this at pole piece 16, pole piece 16 is not only made to be combined more firm with frame 10, and the upper surface area of frame 10 can be made larger, be convenient to settle other components and parts on the surface of frame, in addition, pad 11 is farther with the first upper surface 160 spacing distance of pole piece 16, be beneficial to pad 11 and carry out the welding jobs such as welding voice coil leads.
Again shown in composition graphs 4, described frame 10 comprises towards the 3rd upper surface 100 of described vibrating diaphragm 13 and the 3rd lower surface 101 that is oppositely arranged with the 3rd upper surface 100.Described pad 11 comprises the 4th upper surface 110 being exposed to described 3rd upper surface 100 and the 4th lower surface 111 being exposed to described 3rd lower surface 101.Described 4th upper surface 110 welds for the voice coil leads (sign) of loud speaker 1 inside, and described 4th lower surface 111 is for welding with external circuitry.Preferably, described first upper surface 160, the 3rd upper surface 100 and the 4th upper surface 110 are positioned at same level.
Described pad 11 comprise partial denudation in the first weld tabs portion 112 of described 3rd upper surface 100, partial denudation in the second weld tabs portion 113 of described 3rd lower surface 101, connect described first weld tabs portion 112 and the second weld tabs portion 113 connecting portion 114 and from described second weld tabs portion 113 towards first direction, weld tabs portion 112 bending extend injection moulding rib 115, described 4th upper surface 110 is positioned at described first weld tabs portion 112, and described 4th lower surface 111 is positioned at described second weld tabs portion 113.This injection moulding rib 115 not only can increase the injection moulding intensity of pad 11 and frame 10, but also can highly regulate angle between described first weld tabs portion 112 and the second weld tabs portion 113 by changing it, can also limit described pad 11 with during frame 10 injection moulding described in the first weld tabs portion 112 move to the second direction, weld tabs portion 113.
As shown in Figure 5, described pole piece 16 is preferred rectangular ring-type in the utility model, it is provided with four turnings, and two turnings in these four turnings are recessed to form by direction inside lateral breach 163 of stepping down, breach 163 of stepping down described in described injection moulding portion 162 is positioned at.Breach 163 of stepping down described in described pad 11 correspondence is arranged, and the distance between described pad 11 and pole piece first upper surface 160 can be made like this to maximize, specifically as shown in Figure 6.
As shown in figs. 1 and 6, the loud speaker 1 that the utility model provides, its pole piece 16 is far away with pad 11 spacing distance, and pole piece 16 is combined more firm with frame 10, greatly improve the stability of loud speaker 1.
Above-described is only better embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite not departing from the utility model creation design; improvement can also be made, but these all belong to protection range of the present utility model.
Claims (9)
1. a loud speaker, it comprises frame and the magnetic circuit system that is contained in this frame and vibrational system, described vibrational system comprises vibrating diaphragm and drives the voice coil loudspeaker voice coil of this diaphragm oscillations, described magnetic circuit system comprises ring and establishes the magnet steel of described voice coil loudspeaker voice coil outer circumferential side and attach the pole piece of this magnet steel upper surface, described pole piece and frame integrated injection molding, it is characterized in that, described pole piece comprises towards the first upper surface of vibrating diaphragm and the first lower surface of being oppositely arranged with this first upper surface, described pole piece extends the injection moulding portion of injection moulding in frame to frame direction, this injection moulding portion comprises the second upper surface towards vibrating diaphragm, this first upper surface is greater than the height of described second upper surface relative to the first lower surface relative to the height of the first lower surface.
2. loud speaker as claimed in claim 1, is characterized in that: described loud speaker also comprises and is embedded at described frame and for realizing described loud speaker and the extraneous pad be electrically connected, the part that described pad closes on from described pole piece in described injection moulding portion is extended.
3. loud speaker as claimed in claim 2, is characterized in that: described pad and described frame integrated injection molding.
4. as claimed in claim 2 or claim 3 loud speaker, is characterized in that, described frame comprises towards the 3rd upper surface of described vibrating diaphragm and the 3rd lower surface that is oppositely arranged with the 3rd upper surface, and described weld tabs comprises the 4th upper surface being exposed to described 3rd upper surface.
5. loud speaker as claimed in claim 4, it is characterized in that, described first upper surface and the 3rd upper surface are positioned at same level.
6. loud speaker as claimed in claim 4, it is characterized in that, described pad comprise partial denudation in the first weld tabs portion of described 3rd upper surface, partial denudation in the second weld tabs portion of described 3rd lower surface, connect described first weld tabs portion and the second weld tabs portion connecting portion and from described second weld tabs portion towards first direction, weld tabs portion bending extend injection moulding rib.
7. loud speaker as claimed in claim 4, it is characterized in that, the rectangular ring-type of described pole piece, it is provided with four turnings, and two turnings in these four turnings are recessed to form by direction inside lateral breach of stepping down, breach of stepping down described in described injection moulding portion is positioned at.
8. loud speaker as claimed in claim 7, is characterized in that, breach of stepping down described in described pad correspondence is arranged.
9. loud speaker as claimed in claim 1, is characterized in that: described magnetic circuit system also comprise by described voice coil loudspeaker voice coil around center magnet steel and attach the center pole piece on magnet steel surface, described center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258505.8U CN204616081U (en) | 2015-04-24 | 2015-04-24 | Loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258505.8U CN204616081U (en) | 2015-04-24 | 2015-04-24 | Loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204616081U true CN204616081U (en) | 2015-09-02 |
Family
ID=53968601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520258505.8U Expired - Fee Related CN204616081U (en) | 2015-04-24 | 2015-04-24 | Loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204616081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963239A (en) * | 2017-12-14 | 2019-07-02 | 深圳君泽电子有限公司 | Loudspeaker |
-
2015
- 2015-04-24 CN CN201520258505.8U patent/CN204616081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963239A (en) * | 2017-12-14 | 2019-07-02 | 深圳君泽电子有限公司 | Loudspeaker |
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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: 20180919 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: 213167 Changzhou, Jiangsu City, Wujin province summer town villa Patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. |
|
| 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: 20150902 Termination date: 20210424 |