CN203301730U - Minisize loudspeaker - Google Patents
Minisize loudspeaker Download PDFInfo
- Publication number
- CN203301730U CN203301730U CN2013203134193U CN201320313419U CN203301730U CN 203301730 U CN203301730 U CN 203301730U CN 2013203134193 U CN2013203134193 U CN 2013203134193U CN 201320313419 U CN201320313419 U CN 201320313419U CN 203301730 U CN203301730 U CN 203301730U
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- rivet
- yoke
- diapire
- magnetic
- circuit system
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Abstract
The utility model discloses a minisize loudspeaker. A magnetic circuit system of the minisize loudspeaker comprises a magnetic yoke, an internal magnet disposed in the middle part which is on a magnetic yoke footwall, and an internal magnetic conductive plate folded and disposed on the internal magnet. The magnetic yoke footwall, the internal magnet and the internal magnetic conductive plate are all provided with rivet holes and are riveted through one rivet. The rivet on the magnetic yoke footwall is step-shaped. The step-shaped rivet hole comprises a lower big-aperture section and an upper small-aperture section. The head of the rivet is snapped into the big-aperture section. The rod part of the rivet is led through the small-aperture section of the step-shaped rivet hole, the rivet hole of the internal magnet and the rivet hole of the internal magnetic conductive plate. The loudspeaker allows the magnetic circuit system part to be connected through the rivet, so that production efficiency is improved, product height is unaffected, and achievement of product micromation is facilitated. Product bottom surface is ensured to be flat, and subsequent assembly operation is ensured to be carried out smoothly.
Description
Technical field
The utility model relates to the Microspeaker technical field.
Background technology
Microspeaker generally includes magnetic circuit system, vibrational system and accommodates fixing above-mentioned two-part framework, and magnetic circuit system forms magnetic gap by yoke, magnet and magnetic conductive board; Vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is connected in the vibrating diaphragm below, and voice coil loudspeaker voice coil is suspended in the magnetic gap of magnetic circuit system.When in voice coil loudspeaker voice coil, passing into audio electrical signal, voice coil loudspeaker voice coil is subject to the magnetic induction force effect and produces motion in magnetic gap, thereby drive the vibrating diaphragm vibration, sounds.In prior art, magnetic circuit system each several part fixing is generally by glue, to be undertaken bondingly, and not only assembly difficulty is large, and efficiency of assembling is low.In order to enhance productivity, now also there is minority to adopt following assembling mode: by rivet, the internal magnet of yoke and middle position and interior magnetic conductive board to be fixed, but, adopt above-mentioned assembly method, the head of rivet protrudes from the below of yoke basal surface, make the whole height of product strengthen, be unfavorable for the realization of the miniaturization of products; And rivet head protrudes from the yoke basal surface, makes the product can't horizontal positioned, is unfavorable for follow-up assembly manipulation.
Therefore, be necessary Microspeaker of the prior art is improved, to avoid above-mentioned defect.
The utility model content
Technical problem to be solved in the utility model is: a kind of Microspeaker that overcomes above-mentioned defect of the prior art is provided, the magnetic circuit system part connects by rivet, improve production efficiency, and do not affected the height of product, be conducive to realize the microminiaturization of product; And guaranteed that the product bottom surface is smooth, guarantee carrying out smoothly of follow-up assembly manipulation.
For solving the problems of the technologies described above, the technical solution of the utility model is: Microspeaker comprises magnetic circuit system and accommodates the framework of fixing described magnetic circuit system; Described magnetic circuit system is formed with the magnetic gap of the voice coil loudspeaker voice coil that holds Microspeaker, the interior magnetic conductive board that described magnetic circuit system comprises yoke, is located at the internal magnet of yoke diapire top center position and is stacked at described internal magnet top; Wherein: on described yoke diapire, described internal magnet and described interior magnetic conductive board, be equipped with rivet hole and be in the same place by a closing-up; Rivet hole on described yoke diapire is stepped hole, the large aperture section of described stepped hole under, the small-bore section is upper, the head of described rivet is arranged in the large aperture section of described stepped hole, and rivet hole on the small-bore section of described stepped hole, described internal magnet and the rivet hole on described interior magnetic conductive board are run through in the bar section of described rivet.
As a kind of preferred technical scheme, described yoke diapire comprises lower floor's diapire and the upper strata diapire that is fixed together, and the large aperture section of described stepped hole is opened on described lower floor diapire, and the small-bore section of described stepped hole is opened on the diapire of described upper strata.
As a kind of preferred technical scheme, described rivet is hollow rivet, and its central through hole forms air-vent.
As a kind of preferred technical scheme, described magnetic circuit system is two magnetic route structure, described yoke only comprises the yoke diapire, above described yoke diapire and sidepiece also be provided with external magnet, above described external magnet, fold and be provided with outer magnetic conductive board, between described external magnet and described outer magnetic conductive board and described internal magnet and described interior magnetic conductive board, form magnetic gap.
As the preferred technical scheme of another kind, described magnetic circuit system is the internal magnetic circuit structure, and described yoke also comprises the yoke sidewall that the edge by the yoke diapire extends upward, and between described yoke sidewall and described internal magnet and described interior magnetic conductive board, forms magnetic gap.
After having adopted technique scheme, the beneficial effects of the utility model are:
With traditional structure, compare, rivet hole on the utility model yoke diapire is set to stepped hole, the head of rivet is arranged in the large aperture section of stepped hole, the small-bore section of stepped hole, the rivet hole on internal magnet and the rivet hole on interior magnetic conductive board are run through in the bar section of rivet, and three parts rivet together the most at last.Adopt said structure, the head captured of rivet, in the section of the large aperture of stepped hole, therefore can not strengthen the height of product, more is conducive to realize the microminiaturization of product; And make the bottom surface of product smooth, and can well horizontal positioned, guarantee carrying out smoothly of follow-up assembly manipulation.
In addition, in order to facilitate the processing of stepped hole, yoke diapire of the present utility model can be by lower floor's diapire independently and independently the upper strata diapire form, by the mode such as bonding, be fixed together on lower floor's diapire, offering the small-bore Duan，Jiang lower floor diapire of offering stepped hole on Duan，Zai upper strata, the large aperture diapire of stepped hole and upper strata diapire, the stepped hole of Duan Yu small-bore, large aperture section docking complete, above-mentioned design, can make the processing of stepped hole easier, improved production efficiency.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment mono-.
Fig. 2 is the structural representation of the magnetic circuit system of the utility model embodiment mono-.
Fig. 3 is the structural representation of the magnetic circuit system of the utility model embodiment bis-.
Fig. 4 is the structural representation of the magnetic circuit system of the utility model embodiment tri-.
Fig. 5 is the structural representation of the magnetic circuit system of the utility model embodiment tetra-.
In figure: 1. framework, 211. yoke diapires, 2111. lower floor's diapires, 2112. upper strata diapires, 212. the yoke sidewall, 221. internal magnets, 231. interior magnetic conductive boards, 222. external magnets, 232. outer magnetic conductive board, 31. vibrating diaphragms, 311. cores, 312. marginal portions, 32. voice coil loudspeaker voice coil, 33. hard mounting rings, 4. rivet, the head of 41. rivets, 42. the bar section of rivet, the rivet hole on 51. yoke diapires, 511. large aperture sections, 512. the small-bore section, the rivet hole on 52. internal magnets, the rivet hole on 53. interior magnetic conductive boards.
Embodiment
Embodiment mono-
As shown in Fig. 1 and Fig. 2 were common, a kind of Microspeaker, comprised magnetic circuit system, vibrational system and accommodate the fixedly framework of magnetic circuit system and vibrational system.In the present embodiment, the definition magnetic circuit system place a side be under, a side at vibrational system place is upper.
Magnetic circuit system is fixed in framework.Magnetic circuit system comprises the yoke that is positioned at bottom, the magnetic conductive board of being located at the internal magnet of yoke diapire top center position and being stacked at the internal magnet top.On yoke diapire, internal magnet and interior magnetic conductive board, be equipped with rivet hole and be in the same place by a closing-up.
Rivet hole on the yoke diapire is designed to stepped hole, and the large aperture section of stepped hole under, the small-bore section is upper.The head of rivet is arranged in the large aperture section of stepped hole, and rivet hole on the small-bore section of stepped hole, internal magnet and the rivet hole on interior magnetic conductive board are run through in the bar section of rivet, and yoke diapire, internal magnet and interior magnetic conductive board are riveted together.Adopt said structure, the head captured of rivet, in the section of the large aperture of stepped hole, therefore can not strengthen the height of product, more is conducive to realize the microminiaturization of product; And make the bottom surface of product smooth, and can well horizontal positioned, guarantee carrying out smoothly of follow-up assembly manipulation.
Wherein, rivet can adopt hollow rivet, and its central through hole forms air-vent, in the vibrating diaphragm vibration processes, makes back cavity and the outside conducting of product of Microspeaker, is equivalent to increase the volume of back cavity, reduces the inhibition of air to the vibrating diaphragm vibration, improves acoustical behavior.Certainly rivet also can adopt solid rivet, and air-vent can be opened on the yoke diapire or other suitable position in addition.
In the present embodiment, magnetic circuit system adopts two magnetic route structure, and yoke only comprises the yoke diapire, above the yoke diapire and sidepiece also be provided with external magnet, above external magnet, fold and be provided with outer magnetic conductive board, between external magnet and outer magnetic conductive board and internal magnet and interior magnetic conductive board, form magnetic gap.Yoke, interior magnetic conductive board and outer magnetic conductive board, for the magnetic line of force of two magnet is collected, are concentrated the magnetic line of force of dispersing and, along its walking, form the magnetic loop that passes magnetic gap.
Vibrational system comprises vibrating diaphragm and is connected in the voice coil loudspeaker voice coil of vibrating diaphragm downside.The edge of vibrating diaphragm is fixed in the upper end of framework, and voice coil loudspeaker voice coil is suspended in the magnetic gap of magnetic circuit system by vibrating diaphragm.After in voice coil loudspeaker voice coil, passing into audio electrical signal, voice coil loudspeaker voice coil is subject to the magnetic induction force effect and produces motion in magnetic gap, thereby drive the vibrating diaphragm vibration, sounds.
In the present embodiment, vibrating diaphragm comprises the core of the rigidity that is positioned at middle position and around core and be attached thereto the marginal portion of the flexibility of setting, wherein, core is ball top shape, and marginal portion is the middle structure that raises up.The structure of vibrating diaphragm also can adopt other any structure of the prior art, at this, no longer is described in detail.
Downside is fixed with the hard mounting ring at the edge of vibrating diaphragm (being also the outward flange of marginal portion), by the hard mounting ring, the vibrating diaphragm of flexibility is formalized, and then fix with the framework upper end, this design makes the assembly manipulation of vibrating diaphragm become easily, has improved efficiency of assembling.This hard mounting ring can adopt the metal material manufacture, also can adopt the plastic material manufacture.
In addition, on the upper surface of framework, be provided with ecto-entad and the first step section of the transition that makes progress, in the lower surface of hard mounting ring, be provided with the second step section that is interlocked with first step section, being positioned on inboard step surface of first step section and second step section, be provided with adhesive-layer, first step section and second step section are adhesively fixed by adhesive-layer, and then vibrating diaphragm is fixed on framework.The design of said structure, fasten in framework first step section by the second step section by the hard mounting ring, makes vibrating diaphragm to navigate to rapidly and accurately on framework, improved efficiency of assembling; And, in assembling process, adhesive-layer be arranged on two stage portion between the step surface of inboard, in both fixation procedure, colloid is stopped by the step surface in the outside, can not spill into the outside of product, and then can not cause bad order, therefore guarantee the consistency of product appearance, guaranteed normal assembling that product is follow-up and the smooth installation of product integral body.
Embodiment bis-
As shown in Figure 3, the difference of the present embodiment and embodiment mono-is: in order to facilitate the processing of stepped hole, the yoke diapire by lower floor's diapire independently and independently the upper strata diapire form, the large aperture section of stepped hole is opened on lower floor's diapire, the small-bore section of stepped hole is opened on the diapire of upper strata, lower floor's diapire and upper strata diapire are fixed together by the mode such as bonding, the stepped hole of Duan Yu small-bore, large aperture section docking complete, above-mentioned design, can make the processing of stepped hole easier, improve production efficiency.
Embodiment tri-
As shown in Figure 4, the difference of the present embodiment and embodiment mono-is: magnetic circuit system adopts the internal magnetic circuit structure, yoke also comprises the yoke sidewall that the edge by the yoke diapire extends upward, whole yoke is the groove shape structure of upper end open, between yoke sidewall and internal magnet and interior magnetic conductive board, forms magnetic gap.Groove shape yoke and interior magnetic conductive board, for the magnetic line of force of internal magnet is collected, are concentrated the magnetic line of force of dispersing and, along its walking, form the magnetic loop that passes magnetic gap.
Embodiment tetra-
As shown in Figure 5, the difference of this enforcement and embodiment tri-is: in order to facilitate the processing of stepped hole, the yoke diapire by lower floor's diapire independently and independently the upper strata diapire form, upper strata diapire and the machine-shaping of yoke sidewall one.The large aperture section of stepped hole is opened on lower floor's diapire, the small-bore section of stepped hole is opened on the diapire of upper strata, lower floor's diapire and upper strata diapire are fixed together by the mode such as bonding, the stepped hole of Duan Yu small-bore, large aperture section docking complete, above-mentioned design, can make the processing of stepped hole easier, improve production efficiency.
Under above-mentioned instruction of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment; and these improvement and distortion; all drop in protection range of the present utility model; those skilled in the art should be understood that; above-mentioned specific descriptions are just better explained the purpose of this utility model, and protection range of the present utility model is limited by claim and equivalent thereof.
Claims (5)
1. Microspeaker, comprise magnetic circuit system and accommodate the framework of fixing described magnetic circuit system;
Described magnetic circuit system is formed with the magnetic gap of the voice coil loudspeaker voice coil that holds Microspeaker, the interior magnetic conductive board that described magnetic circuit system comprises yoke, is located at the internal magnet of yoke diapire top center position and is stacked at described internal magnet top;
It is characterized in that:
On described yoke diapire, described internal magnet and described interior magnetic conductive board, be equipped with rivet hole and be in the same place by a closing-up;
Rivet hole on described yoke diapire is stepped hole, the large aperture section of described stepped hole under, the small-bore section is upper, the head of described rivet is arranged in the large aperture section of described stepped hole, and rivet hole on the small-bore section of described stepped hole, described internal magnet and the rivet hole on described interior magnetic conductive board are run through in the bar section of described rivet.
2. Microspeaker as claimed in claim 1, it is characterized in that: described yoke diapire comprises lower floor's diapire and the upper strata diapire that is fixed together, the large aperture section of described stepped hole is opened on described lower floor diapire, and the small-bore section of described stepped hole is opened on the diapire of described upper strata.
3. Microspeaker as claimed in claim 1, it is characterized in that: described rivet is hollow rivet, its central through hole forms air-vent.
4. the described Microspeaker of claim as arbitrary as claims 1 to 3, it is characterized in that: described magnetic circuit system is two magnetic route structure, described yoke only comprises the yoke diapire, above described yoke diapire and sidepiece also be provided with external magnet, above described external magnet, fold and be provided with outer magnetic conductive board, between described external magnet and described outer magnetic conductive board and described internal magnet and described interior magnetic conductive board, form magnetic gap.
5. the described Microspeaker of claim as arbitrary as claims 1 to 3, it is characterized in that: described magnetic circuit system is the internal magnetic circuit structure, described yoke also comprises the yoke sidewall that the edge by the yoke diapire extends upward, and between described yoke sidewall and described internal magnet and described interior magnetic conductive board, forms magnetic gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203134193U CN203301730U (en) | 2013-06-03 | 2013-06-03 | Minisize loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203134193U CN203301730U (en) | 2013-06-03 | 2013-06-03 | Minisize loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301730U true CN203301730U (en) | 2013-11-20 |
Family
ID=49577706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203134193U Expired - Lifetime CN203301730U (en) | 2013-06-03 | 2013-06-03 | Minisize loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301730U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933832A (en) * | 2016-06-14 | 2016-09-07 | 歌尔股份有限公司 | Single loudspeaker and production method of single loudspeaker |
| CN109218927A (en) * | 2018-01-10 | 2019-01-15 | 歌尔股份有限公司 | Sounding device |
| CN110582040A (en) * | 2018-06-08 | 2019-12-17 | 哈曼国际工业有限公司 | inverse motor transducer with central vent |
| CN110784809A (en) * | 2019-09-30 | 2020-02-11 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110891232A (en) * | 2019-11-29 | 2020-03-17 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
-
2013
- 2013-06-03 CN CN2013203134193U patent/CN203301730U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933832A (en) * | 2016-06-14 | 2016-09-07 | 歌尔股份有限公司 | Single loudspeaker and production method of single loudspeaker |
| CN109218927A (en) * | 2018-01-10 | 2019-01-15 | 歌尔股份有限公司 | Sounding device |
| CN109218927B (en) * | 2018-01-10 | 2021-12-28 | 歌尔股份有限公司 | Sound producing device |
| CN110582040A (en) * | 2018-06-08 | 2019-12-17 | 哈曼国际工业有限公司 | inverse motor transducer with central vent |
| CN110582040B (en) * | 2018-06-08 | 2023-03-10 | 哈曼国际工业有限公司 | Inverse motor transducer with central vent |
| CN110784809A (en) * | 2019-09-30 | 2020-02-11 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110784809B (en) * | 2019-09-30 | 2021-11-26 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110891232A (en) * | 2019-11-29 | 2020-03-17 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
| CN110891232B (en) * | 2019-11-29 | 2021-02-19 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |