CN203301725U - Sounding device - Google Patents
Sounding device Download PDFInfo
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- CN203301725U CN203301725U CN2013202334169U CN201320233416U CN203301725U CN 203301725 U CN203301725 U CN 203301725U CN 2013202334169 U CN2013202334169 U CN 2013202334169U CN 201320233416 U CN201320233416 U CN 201320233416U CN 203301725 U CN203301725 U CN 203301725U
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- magnet
- magnetic
- conductive board
- magnetic conductive
- voice coil
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Abstract
The utility model discloses a sounding device including a vibration system and a magnetic-circuit system. The vibration system includes a voice coil. The magnetic-circuit system includes a first magnet and adjacent second magnets. Magnetic gaps for accommodating the voice coil are formed between the first magnet and the second magnets. Both of the first magnet and the second magnets are block-structured and there is mutual attraction between the first magnet and the second magnets. A magnetic base is combined with surfaces of the first magnet and the second magnets, at a side far from the voice coil, wherein the magnetic base is formed through jointing of a plurality of independent magnetic plates. The magnetic base includes a first conductive plate supported between the first magnet and/or the second magnets. The structure is capable of preventing poor attraction between the magnets so that finished product rate and acoustic performance of the product is improved.
Description
Technical field
The utility model relates to the electroacoustic field, is specifically related to a kind of microphone device.
Background technology
Microphone device involving vibrations system and magnetic circuit system, in prior art in order to meet the demands such as high-power or slimming, magnetic circuit system consists of a plurality of magnet usually, between a plurality of magnet, often has the active force attract each other, if magnet is bonding, not firmly occurs that easily magnet attraction etc. is bad.Microphone device in conventional art is difficult to avoid this defect.Therefore, be necessary the microphone device of this structure is improved, to avoid above-mentioned defect.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of microphone device, can prevent adhesive between magnet, improves the rate of finished products of product.
To achieve these goals, the utility model provides a kind of microphone device, involving vibrations system and magnetic circuit system, described vibrational system comprises voice coil loudspeaker voice coil, described magnetic circuit system comprises the first magnet and the second adjacent magnet, between described the first magnet and described the second magnet, forms the magnetic gap of accommodating described voice coil loudspeaker voice coil; Described the first magnet and described the second magnet are block structure, and has the power of attracting each other between described the first magnet and described the second magnet, described the first magnet and described the second magnet are combined with the magnetic conduction base away from a side surface of described voice coil loudspeaker voice coil, wherein, described magnetic conduction base is spliced to form by a plurality of independently magnetic conductive boards, and described magnetic conduction base comprises the first magnetic conductive board that is supported between described the first magnet and/or the second magnet.
In addition, preferably scheme is, described the first magnetic conductive board also is combined with the second magnetic conductive board away from a side of described voice coil loudspeaker voice coil, and the thickness of described the second magnetic conductive board is greater than the thickness of described the first magnetic conductive board.
In addition, preferred scheme is, described the first magnet is the center that internal magnet is positioned at described magnetic conduction base, and described the second magnet is that the periphery that external magnet is positioned at described internal magnet is list structure, the described magnetic gap of formation between described internal magnet and described external magnet; Described the first magnetic conductive board is supported between each described external magnet.
In addition, preferred scheme is, described external magnet is arranged at the both sides that are parallel to described internal magnet relative edge, described the first magnetic conductive board is the sleeve configuration structure, two external magnets are connected on the both sides that described sleeve configuration the first magnetic conductive board is relative, and described internal magnet is incorporated into the center of described the first magnetic conductive board near described voice coil loudspeaker voice coil one side.
In addition, preferably scheme is, the width of described the second magnetic conductive board is greater than the width of described the first magnetic conductive board, and described the second magnetic conductive board is wider than the part and described external magnet secure bond of described the first magnetic conductive board both sides.
In addition, preferred scheme is also to be provided with retaining wall on described the first magnetic conductive board or described the second magnetic conductive board.
After adopting technique scheme, with traditional structure, compare, the utility model magnetic conduction base is spliced to form by a plurality of independently magnetic conductive boards, each magnetic conductive board can have different effects, the first magnetic conductive board wherein is for supporting magnet, prevent between magnet occurring that adhesive etc. is bad, thereby improved the rate of finished products of product, improved the acoustical behavior of product.
The accompanying drawing explanation
By below in conjunction with accompanying drawing, the utility model being described, above-mentioned feature of the present utility model and technological merit will become apparent and easily understand.
Fig. 1 is the stereo decomposing structural representation of the utility model acoustic device magnetic circuit system.
Fig. 2 is the perspective view one of the utility model acoustic device magnetic circuit system.
Fig. 3 is the perspective view two of the utility model acoustic device magnetic circuit system.
Fig. 4 is the A-A cross-sectional view of structure shown in Figure 3.
Fig. 5 is the vertical view of the utility model magnetic conduction base.
Fig. 6 is the B-B cross-sectional view of structure shown in Figure 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to further detailed description.
The microphone device of moving-coil structure generally includes vibrational system, magnetic circuit system and accommodates the fixedly shell of vibrational system and magnetic circuit system, vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of vibrating diaphragm one side, magnetic circuit system comprises magnet and is incorporated into the magnetic conduction base of magnet away from vibrational system one side, wherein magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is connected after the signal of telecommunication up-down vibration in magnetic gap, and further drives vibrating diaphragm generation of vibration sound.
As shown in Figure 1 to Figure 3, the magnetic circuit system of the utility model microphone device comprises washer 1, magnet 2 and the magnetic conduction base 3 of combination successively, magnetic circuit system is two magnetic route structure, double magnetic circuit can realize larger power output, magnet 2 comprises the internal magnet 21 that is positioned at center and two external magnets 22 that are positioned at internal magnet 21 both sides, and internal magnet 21 and external magnet 22 are arranged side by side and form closed magnetic loop is the structure that attracts each other.Washer 1 comprises the interior washer 11 that is incorporated into internal magnet 21 surfaces and is incorporated into the outer washer 12 on external magnet 22 surfaces, wherein in washer 11 and outer washer 12 be the structure of magnetic conduction, can be used to adjusting the direction of the magnetic line of force that magnet 2 forms.Magnetic conduction base 3 is incorporated into internal magnet 21 and external magnet 22 surface away from a side of washer 1, and magnetic conduction base 3 is also magnetic conduction construction, and magnetic circuit system forms closed magnetic loop.
The utility model magnetic conduction base 3 is spliced to form by a plurality of independently magnetic conductive boards, the present embodiment comprises independently the first magnetic conductive board 31 and the second magnetic conductive board 32, wherein the first magnetic conductive board 31 is the structure of sleeve configuration, its width is identical with the distance between two external magnets 22, and two external magnets 22 are connected to respectively on two relative edges of the first magnetic conductive board 31; Internal magnet 21 is incorporated into the center of the first magnetic conductive board 31.The first magnetic conductive board 31 of this structure is supported between two external magnets 22, thereby defines the distance between two external magnets 22 and internal magnet 21, has avoided between internal magnet 21 and external magnet 22 occurring adhesive etc. bad, thereby can improve the rate of finished products of product.The second magnetic conductive board 32 is incorporated into the side of the first magnetic conductive board 31 away from internal magnet 21, the width d2 of the second magnetic conductive board 32 is greater than the width d1 of the first magnetic conductive board 31, as shown in Figure 1, thereby second magnetic conductive board 32 comprise the part that is exposed to the first magnetic conductive board 31 both sides, as shown in Figures 2 to 4, be wider than the part and external magnet 22 secure bond of the first magnetic conductive board 31.
As shown in Figure 4, the bottom surface of external magnet 22 and the second magnetic conductive board 32 secure bond, the first magnetic conductive board 31 is supported in the side of two external magnets 22, thereby namely can guarantee the firm degree of external magnet 22 bonding, can avoid again external magnet 22 to be subjected to internal magnet 21 to attract to produce adhesives etc. bad.The position that the magnetic circuit system magnetic conduction base 3 of this structure is positioned at internal magnet 21 bights easily forms magnetic saturation, and preferred, the thickness of the second magnetic conductive board 32 is greater than the thickness of the first magnetic conductive board 31, and this structure can effectively be alleviated magnetic saturation.As shown in Figure 4, in the magnetic gap of internal magnet 21 and external magnet 22 formation, also be provided with voice coil loudspeaker voice coil 4, after the voice coil loudspeaker voice coil 4 connection signals of telecommunication, acted in magnetic gap by Ampere force vibrates, the magnetic circuit system of said structure can not exert an influence to the distance between the magnetic gap bottom to voice coil loudspeaker voice coil 4, thereby can not affect the oscillation space of voice coil loudspeaker voice coil 4.
As shown in Figure 3, Figure 5 and Figure 6, on the utility model the first magnetic conductive board 31 or the second magnetic conductive board 32, also be provided with retaining wall, in the present embodiment, on the first magnetic conductive board 31, be provided with retaining wall 311, retaining wall 311 is set and can prevents leakage field.
In addition, the utility model is not limited to this structure with an internal magnet and two external magnets, also can be for comprising the structure of more internal magnet and/or external magnet.For example, magnetic circuit system can be that internal magnet is rectangle, and external magnet is four and the structure that arranges around internal magnet, the supporting surface that the first magnetic conductive board comprises rectangle respectively with four external magnet butts.
In sum, the utility model magnetic conduction base comprises a plurality of independently magnetic conductive boards, and each magnetic conductive board has different effects, as the present embodiment, have the first magnetic conductive board and the second magnetic conductive board, the first magnetic conductive board can prevent magnet attraction, the second magnetic conductive board has the magnetically saturated effect that prevents, thereby can realize the function that single magnetic conductive board does not have, thereby can further improve the acoustic characteristic of product.
Under above-mentioned instruction of the present utility model; those skilled in the art can carry out other 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 (6)
1. microphone device, involving vibrations system and magnetic circuit system, described vibrational system comprises voice coil loudspeaker voice coil, described magnetic circuit system comprises the first magnet and the second adjacent magnet, between described the first magnet and described the second magnet, forms the magnetic gap of accommodating described voice coil loudspeaker voice coil;
Described the first magnet and described the second magnet are block structure, and has the power of attracting each other between described the first magnet and described the second magnet, described the first magnet and described the second magnet are combined with the magnetic conduction base away from a side surface of described voice coil loudspeaker voice coil, it is characterized in that
Described magnetic conduction base is spliced to form by a plurality of independently magnetic conductive boards, and described magnetic conduction base comprises the first magnetic conductive board that is supported between described the first magnet and/or the second magnet.
2. microphone device according to claim 1, is characterized in that, described the first magnetic conductive board also is combined with the second magnetic conductive board away from a side of described voice coil loudspeaker voice coil, and the thickness of described the second magnetic conductive board is greater than the thickness of described the first magnetic conductive board.
3. microphone device according to claim 2, it is characterized in that, described the first magnet is the center that internal magnet is positioned at described magnetic conduction base, described the second magnet is that the periphery that external magnet is positioned at described internal magnet is list structure, between described internal magnet and described external magnet, forms described magnetic gap; Described the first magnetic conductive board is supported between each described external magnet.
4. microphone device according to claim 3, it is characterized in that, described external magnet is arranged at the both sides that are parallel to described internal magnet relative edge, described the first magnetic conductive board is the sleeve configuration structure, two external magnets are connected on the both sides that described sleeve configuration the first magnetic conductive board is relative, and described internal magnet is incorporated into the center of described the first magnetic conductive board near described voice coil loudspeaker voice coil one side.
5. microphone device according to claim 4, is characterized in that, the width of described the second magnetic conductive board is greater than the width of described the first magnetic conductive board, and described the second magnetic conductive board is wider than the part and described external magnet secure bond of described the first magnetic conductive board both sides.
6. microphone device according to claim 5, is characterized in that, on described the first magnetic conductive board or described the second magnetic conductive board, also is provided with retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202334169U CN203301725U (en) | 2013-05-03 | 2013-05-03 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202334169U CN203301725U (en) | 2013-05-03 | 2013-05-03 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301725U true CN203301725U (en) | 2013-11-20 |
Family
ID=49577701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202334169U Expired - Fee Related CN203301725U (en) | 2013-05-03 | 2013-05-03 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260113A (en) * | 2013-05-03 | 2013-08-21 | 歌尔声学股份有限公司 | Sounding component |
| CN104144373A (en) * | 2014-06-30 | 2014-11-12 | 歌尔声学股份有限公司 | Loudspeaker device and method for manufacturing shell thereof |
-
2013
- 2013-05-03 CN CN2013202334169U patent/CN203301725U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260113A (en) * | 2013-05-03 | 2013-08-21 | 歌尔声学股份有限公司 | Sounding component |
| CN103260113B (en) * | 2013-05-03 | 2016-12-28 | 歌尔股份有限公司 | Microphone device |
| CN104144373A (en) * | 2014-06-30 | 2014-11-12 | 歌尔声学股份有限公司 | Loudspeaker device and method for manufacturing shell thereof |
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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. |
|
| 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: 20131120 Termination date: 20170503 |