CN203840532U - Three-magnetic-circuit loudspeaker - Google Patents
Three-magnetic-circuit loudspeaker Download PDFInfo
- Publication number
- CN203840532U CN203840532U CN201420217908.3U CN201420217908U CN203840532U CN 203840532 U CN203840532 U CN 203840532U CN 201420217908 U CN201420217908 U CN 201420217908U CN 203840532 U CN203840532 U CN 203840532U
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- CN
- China
- Prior art keywords
- magnetic
- magnet steel
- fixedly connected
- sides
- magnetic steel
- 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 discloses a three-magnetic-circuit loudspeaker comprising an outer shell, an upper cover, a magnetic circuit system, a wire coil and a film sheet, wherein the upper cover is arranged on the outer shell in a covering manner, the magnetic circuit system is fixedly connected in the outer shell, and the film sheet is suspended above the wire coil through the upper cover. The magnetic circuit system comprises a middle magnetic steel piece, a middle electrode, a magnetic bowl, two side magnetic steel pieces and two side electrodes, wherein the magnetic bowl is fixedly connected onto the outer shell, the middle magnetic steel piece is fixedly connected to the middle part of the magnetic bowl, the middle electrode and the middle magnetic steel piece are fixedly connected, the two side magnetic steel pieces are positioned at two sides of the middle magnetic steel piece, the two side electrodes are fixedly connected with the two side magnetic steel pieces, and the two side magnetic steel pieces are respectively integrated with the outer shell through injection moulding operation. According to the three-magnetic-circuit loudspeaker, the phenomenon that the two side magnetic steel pieces fall off due to mechanical external force such as vibration, fall and the like; the three-magnetic-circuit loudspeaker is firm and stable in structure, and loudspeaker yields are improved.
Description
Technical field
The utility model relates to a kind of electronic component, especially a kind of for the loud speaker on mobile phone, panel computer or associated electrical product.
Background technology
Loud speaker is widely used on the meanss of communication such as mobile phone, for reaching the demand of client to the high loudness of loud speaker, adopt the structure of three magnetic circuits to promote the SPL value of loud speaker self, the magnetic circuit system of common three magnetic circuit products is glued at middle magnetic circuit on magnetic bowl by glue together with bilateral magnetic circuit, but due to middle magnetic circuit be all magnetic with both sides magnetic circuit system and magnetizing direction contrary, magnetic circuit narrower glue contact-making surface in both sides easily causes bilateral magnetic circuit to come off, and in process vibrations, the mechanicalness external force such as falling more easily comes off, cause the decline of loud speaker rate of finished products and the increase of risk after sale.
Summary of the invention
Three magnetic circuit loudspeakers that provide a kind of sound construction stable are provided the purpose of this utility model.
In order to achieve the above object, the technical solution of the utility model is: a kind of three magnetic circuit loudspeakers, comprise shell, upper cover, magnetic circuit system, coil and diaphragm, upper cover lid is put on shell, magnetic circuit system is fixedly connected with in the enclosure, diaphragm is suspended from coil top by upper cover, magnet steel in the middle of magnetic circuit system comprises, target, magnetic bowl, both sides magnet steel and two lateral electrodes, magnetic bowl is fixedly connected on shell, middle magnet steel is fixedly connected on magnetic bowl middle part, target is fixedly connected with middle magnet steel, magnet steel both sides in the middle of both sides magnet steel is positioned at, and two lateral electrodes are fixedly connected with corresponding both sides magnet steel, described both sides magnet steel is injection molded into one with shell respectively.
Described two lateral electrodes and target are bonded on both sides magnet steel and middle magnet steel respectively.
In the middle of described, magnet steel and magnetic bowl middle part are bonding.
Adopt after said structure, because both sides magnet steel is injection molded into one with shell respectively, therefore both sides magnet steel can firmly be fixedly connected on shell, and the both sides of magnet steel in the middle of laying respectively at, can not cause both sides magnet steel coming off due to mechanicalness external force such as shaking, fall, sound construction is stable, improves the rate of finished products of loud speaker.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1, and removes upper cover, coil and diaphragm.
Embodiment
The embodiment providing below in conjunction with accompanying drawing is described in further detail the utility model.
Referring to Fig. 1, 2, shown in 3, a kind of three magnetic circuit loudspeakers, comprise shell 1, upper cover 2, magnetic circuit system 3, coil 4 and diaphragm 5, upper cover 2 lids are put on shell 1, magnetic circuit system 3 is fixedly connected in shell 1, diaphragm 5 is suspended from coil 4 tops by upper cover 2, magnet steel 3-1 in the middle of magnetic circuit system 3 comprises, target 3-2, magnetic bowl 3-3, both sides magnet steel 3-4 and two lateral electrode 3-5, magnetic bowl 3-3 is fixedly connected on shell 1, middle magnet steel 3-1 is fixedly connected on magnetic bowl 3-3 middle part, target 3-2 is fixedly connected with middle magnet steel 3-1, magnet steel 3-1 both sides in the middle of both sides magnet steel 3-4 is positioned at, and two lateral electrode 3-5 are fixedly connected with corresponding both sides magnet steel 3-4, described both sides magnet steel 3-4 is injection molded into one with shell 1 respectively.
Shown in Fig. 2,3, in order to improve firmness and the production efficiency of connection, described two lateral electrode 3-5 and target 3-2 are bonded on both sides magnet steel 3-4 and middle magnet steel 3-1 respectively.
Shown in Fig. 2,3, in order to improve firmness and the production efficiency of connection, described middle magnet steel 3-1 and magnetic bowl 3-3 middle part are bonding.
Shown in Fig. 1,2,3, when the utility model assembling, in advance both sides magnet steel 3-4 and shell 1 are injection molded into one, middle magnet steel 3-1 is bonded on magnetic bowl 3-3, again target 3-2 is bonded on middle magnet steel 3-1, then by middle magnetic circuit integral installation on shell 1, finally two lateral electrode 3-5 are bonded in respectively to both sides magnet steel 3-1 upper, then coil 4, diaphragm 5 and upper cover 2 are contained on shell 1.Both sides magnet steel 3-4 of the present utility model and shell 1 are for being injection molded into one, therefore magnet steel 3-4 in both sides can firmly be fixedly connected on shell 1, and the both sides of magnet steel 3-1 in the middle of laying respectively at, can not cause both sides magnet steel 3-4 coming off due to mechanicalness external force such as shaking, fall, sound construction is stable, improves the rate of finished products of loud speaker.
Claims (3)
1. a magnetic circuit loudspeaker, comprise shell (1), upper cover (2), magnetic circuit system (3), coil (4) and diaphragm (5), upper cover (2) lid is put on shell (1), magnetic circuit system (3) is fixedly connected in shell (1), diaphragm (5) is suspended from coil (4) top by upper cover (2), magnet steel (3-1) in the middle of magnetic circuit system (3) comprises, target (3-2), magnetic bowl (3-3), both sides magnet steel (3-4) and two lateral electrodes (3-5), magnetic bowl (3-3) is fixedly connected on shell (1), middle magnet steel (3-1) is fixedly connected on magnetic bowl (3-3) middle part, target (3-2) is fixedly connected with middle magnet steel (3-1), magnet steel (3-1) both sides in the middle of both sides magnet steel (3-4) is positioned at, and two lateral electrodes (3-5) are fixedly connected with corresponding both sides magnet steel (3-4), it is characterized in that: described both sides magnet steel (3-4) are injection molded into one with shell (1) respectively.
2. three magnetic circuit loudspeakers according to claim 1, is characterized in that: described two lateral electrodes (3-5) and target (3-2) are bonded on both sides magnet steel (3-4) and middle magnet steel (3-1) respectively.
3. three magnetic circuit loudspeakers according to claim 1, is characterized in that: in the middle of described, magnet steel (3-1) is bonding with magnetic bowl (3-3) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420217908.3U CN203840532U (en) | 2014-04-30 | 2014-04-30 | Three-magnetic-circuit loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420217908.3U CN203840532U (en) | 2014-04-30 | 2014-04-30 | Three-magnetic-circuit loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840532U true CN203840532U (en) | 2014-09-17 |
Family
ID=51518324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420217908.3U Expired - Fee Related CN203840532U (en) | 2014-04-30 | 2014-04-30 | Three-magnetic-circuit loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206329A1 (en) * | 2015-06-23 | 2016-12-29 | 歌尔声学股份有限公司 | Process for magnetizing multiple magnetic circuits |
| CN110536224A (en) * | 2019-07-12 | 2019-12-03 | 国光电器股份有限公司 | The assemble method of magnetic circuit structure for loudspeaker |
-
2014
- 2014-04-30 CN CN201420217908.3U patent/CN203840532U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206329A1 (en) * | 2015-06-23 | 2016-12-29 | 歌尔声学股份有限公司 | Process for magnetizing multiple magnetic circuits |
| US10225660B2 (en) | 2015-06-23 | 2019-03-05 | Goertek Inc. | Process for magnetizing multiple magnetic circuits |
| CN110536224A (en) * | 2019-07-12 | 2019-12-03 | 国光电器股份有限公司 | The assemble method of magnetic circuit structure for loudspeaker |
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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: 20140917 Termination date: 20190430 |