CN203492190U - Loudspeaker magnetic circuit system - Google Patents
Loudspeaker magnetic circuit system Download PDFInfo
- Publication number
- CN203492190U CN203492190U CN201320342694.8U CN201320342694U CN203492190U CN 203492190 U CN203492190 U CN 203492190U CN 201320342694 U CN201320342694 U CN 201320342694U CN 203492190 U CN203492190 U CN 203492190U
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- magnet
- joint portion
- magnetic
- magnetic conductive
- thickness
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Abstract
The utility model discloses a loudspeaker magnetic circuit system, comprising a magnetic conductive plate, a central magnet disposed on a central position of the magnetic conductive plate, and edge magnets disposed on edge positions of the magnetic conductive plate. The magnetic conductive plate is provided with a first combining portion combining the central magnet, and a second combining portion combining the edge magnets, and thickness of the first combining portion and thickness of the second combining portion are different. The central magnet and end faces of the edge magnets, the end faces being far away from the side of the magnetic conductive plate are on a same plane. The structure can increase dimension of the magnet on a vertical direction, and improves magnetic property of the magnetic circuit system.
Description
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of magnetic circuit of loudspeaker.
Background technology
At present, in order to guarantee the acoustic characteristics such as power output, sensitivity of product, the magnetic circuit system of loud speaker is generally two magnetic route structure, and magnetic circuit system comprises magnetic conductive board, is incorporated into the centring magnet of magnetic conductive board center and is positioned at the limit magnet of marginal position.Wherein, magnetic conductive board need to have certain thickness, for the magnetic line of force between direction center magnet and limit magnet, makes magnetic circuit system form closed magnetic loop.In prior art, often require magnetic circuit system to have higher magnetic property, this just requires magnet to have larger size, but because the restriction magnet that is subject to speaker size size in the horizontal direction cannot continue to increase.Therefore, be necessary to provide a kind of magnetic circuit of loudspeaker, can increase in the other direction the size of magnet, thereby improve the acoustical behavior of product.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of magnetic circuit of loudspeaker, can increase the size of magnet, improves the magnetic property of magnetic circuit system.
To achieve these goals, the utility model provides a kind of magnetic circuit of loudspeaker, comprise magnetic conductive board, be arranged at the centring magnet of magnetic conductive board center, and the limit magnet that is arranged at described magnetic conductive board marginal position, wherein, magnetic conductive board is provided with in conjunction with the first joint portion of described centring magnet with in conjunction with the second joint portion of described limit magnet, and the thickness of described the first joint portion and described the second joint portion is not identical, described centring magnet and described limit magnet are in the same plane away from the end face of described magnetic conductive board one side.
In addition, preferably scheme is, the thickness of described the first joint portion is less than described the second joint portion, and the thickness of described centring magnet is greater than the thickness of described limit magnet.
In addition, preferably scheme is, the thickness of described the first joint portion is greater than described the second joint portion, and the thickness of described centring magnet is less than the thickness of described limit magnet.
In addition, preferred scheme is, between described centring magnet and described limit magnet, form the magnetic gap with certain distance, the first joint portion of magnetic conductive board and the second joint portion are in the position handing-over corresponding to described magnetic gap region, and the position of described the first joint portion and described the second joint portion handing-over forms step-like structure.
Adopt after technique scheme, compare with traditional structure, on the utility model magnetic conductive board, be incorporated into the first magnet different with the thickness at the second magnet place, thereby can increase the size of magnet, improve the magnetic property of magnetic circuit system.
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 cross-sectional view of the utility model embodiment mono-magnetic circuit of loudspeaker;
Fig. 2 is the cross-sectional view of the utility model embodiment bis-magnetic circuits of loudspeaker.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to further detailed description.
Embodiment mono-:
As shown in Figure 1, the magnetic circuit of loudspeaker is two magnetic route structure, comprise magnetic conductive board 3, be positioned at the centring magnet 21 and the limit magnet 22 that is positioned at magnetic conductive board 3 marginal positions of magnetic conductive board 3 centers, centring magnet 21 and limit magnet 22 are also combined with center washer 11 and limit washer 12 away from a side of magnetic conductive board 3.Wherein, magnetic conductive board 3, center washer 11 and limit washer 12 all can magnetic conductions, can be used for adjusting the magnetic line of force, make magnetic circuit system form the magnetic loop of some closures.Between center washer 11 and limit washer 12, form the magnetic gap with certain distance, magnetic gap can be accommodated the voice coil loudspeaker voice coil of loud speaker, voice coil loudspeaker voice coil connect after the signal of telecommunication can be in the magnetic field of magnetic gap up-down vibration, further drive vibrating diaphragm generation of vibration sound.
The utility model magnetic conductive board 3 comprises the first joint portion 31 of secure bond centring magnet 21 and the second joint portion 32 of secure bond limit magnet 21, wherein, the first joint portion 31 is different with the thickness of the second joint portion 32, the thickness of the present embodiment the first joint portion 31 is less than the thickness of the second joint portion 32, and centring magnet 21 and limit magnet 22 are in the same plane away from the end face of magnetic conductive board 3 one sides.Owing to being subject to the restriction of speaker size, the size of magnet is difficult to increase in the horizontal direction, definition horizontal direction is the direction that magnetic conductive board 3 extends, and the thickness that the utility model reduces the first joint portion 31 by the vertical direction increases the size of centring magnet 21 on vertical direction, thereby increased the magnetic property of magnetic circuit system.
In addition, the first joint portion 31 and the second joint portion 32 join in the region corresponding to magnetic gap at magnetic conductive board 3, and the position of the first joint portion 31 and the second joint portion 32 handing-over forms step-like structure.This structure can be optimized the distribution of magnetic induction line.
The magnetic circuit of loudspeaker in the vertical direction of said structure has increased the size of magnet, and owing to just having reduced the thickness of magnetic conductive board 3 subregions, the magnetic conductive board 3 conducting normally magnetic line of force.
Embodiment bis-:
As shown in Figure 2, magnetic circuit system comprises magnetic conductive board 3 ', be incorporated into the centring magnet 21 ' of magnetic conductive board 3 ' center and be incorporated into the limit magnet 22 ' of magnetic conductive board marginal position, and being incorporated into respectively centring magnet 21 ' and limit magnet 22 ' away from magnetic conductive board 3 ' Yi Ce center washer 11 and limit washer 12.Wherein, magnetic conductive board 3 ' comprise with the first joint portion 31 ' of centring magnet 21 ' combination and with the second joint portion 32 ' of limit magnet 22 ' combination, in the present embodiment, the thickness of the first joint portion 31 is greater than the thickness of the second joint portion 32 ', centring magnet 21 ' and limit magnet 22 ' are in the same plane away from the end face of magnetic conductive board 3 ' one side, therefore, the height of limit magnet 22 ' is greater than the height of centring magnet 21 '.The first joint portion 31 ' and the second joint portion 32 ' are in the magnetic gap region handing-over being formed by centring magnet 21 ' and limit magnet 22 ', and intersection forms step-like structure.
The not identical structure of thickness of the first joint portion 31 ' of this magnetic conductive board 3 ' and the second joint portion 32 ', increased the size of limit magnet 22 ', magnet 22 ' in the vertical direction in limit has had more the size of the first joint portion 31 ' and the second joint portion 32 ' difference in height, thereby increased the size of magnet in magnetic circuit system, improved the magnetic property of magnetic circuit system.
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 (4)
1. the magnetic circuit of loudspeaker, comprise magnetic conductive board, be arranged at the centring magnet of magnetic conductive board center, and the limit magnet that is arranged at described magnetic conductive board marginal position, it is characterized in that, magnetic conductive board is provided with in conjunction with the first joint portion of described centring magnet with in conjunction with the second joint portion of described limit magnet, and the thickness of described the first joint portion and described the second joint portion is not identical, and described centring magnet and described limit magnet are in the same plane away from the end face of described magnetic conductive board one side.
2. the magnetic circuit of loudspeaker according to claim 1, is characterized in that, the thickness of described the first joint portion is less than described the second joint portion, and the thickness of described centring magnet is greater than the thickness of described limit magnet.
3. the magnetic circuit of loudspeaker according to claim 1, is characterized in that, the thickness of described the first joint portion is greater than described the second joint portion, and the thickness of described centring magnet is less than the thickness of described limit magnet.
4. according to the magnetic circuit of loudspeaker described in claim 2 or 3, it is characterized in that, between described centring magnet and described limit magnet, form the magnetic gap with distance, the first joint portion of magnetic conductive board and the second joint portion are in the position handing-over corresponding to described magnetic gap region, and the position of described the first joint portion and described the second joint portion handing-over forms step-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320342694.8U CN203492190U (en) | 2013-06-14 | 2013-06-14 | Loudspeaker magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320342694.8U CN203492190U (en) | 2013-06-14 | 2013-06-14 | Loudspeaker magnetic circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492190U true CN203492190U (en) | 2014-03-19 |
Family
ID=50262985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320342694.8U Expired - Lifetime CN203492190U (en) | 2013-06-14 | 2013-06-14 | Loudspeaker magnetic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203492190U (en) |
-
2013
- 2013-06-14 CN CN201320342694.8U patent/CN203492190U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
|
| CX01 | Expiry of patent term |