CN101909233A - Magnesium alloy sound pot - Google Patents
Magnesium alloy sound pot Download PDFInfo
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- CN101909233A CN101909233A CN2010102752029A CN201010275202A CN101909233A CN 101909233 A CN101909233 A CN 101909233A CN 2010102752029 A CN2010102752029 A CN 2010102752029A CN 201010275202 A CN201010275202 A CN 201010275202A CN 101909233 A CN101909233 A CN 101909233A
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Abstract
The invention relates to a magnesium alloy sound pot which comprises a pot body formed by stamping magnesium alloy in an integral way; the material of a magnesium alloy plate of the pot body has the density of 2.78g/mm3, the thickness of 0.05-0.4mm and the components of 2.5-3.5 of Al, 0.60-1.4 of Zn, 0.20-1.0 of Mn, less than or equal to 0.08 of Si, less than or equal to 0.003 of Fe, less than or equal to 0.04 of Ca, less than or equal to 0.01 of Cu, less than or equal to 0.001 of Ni and balance Mg. The pot body is in a horn shape with an upper and a lower round openings, and the horn wall is even in thickness and takes on a liner shape or an arc shape. The magnesium alloy sound pot is thin, light in weight, high in strength and good in rigidity, has impact resistance, even structure, good heat dissipation, good anti-damping shock absorption performance, strong electromagnetic shielding capability and low processing cost, provides better sound quality and wider audio frequency range for the user, and meets the requirements of a high-power loudspeaker.
Description
Technical field
The present invention relates to a kind of loud speaker, especially a kind of sound basin of loud speaker.
Background technology
The world today, along with the raising of people's living standard, people to the high-fidelity of loud speaker, high-power more and more higher requirement proposed, the sound basin is the major part of loud speaker, its quality will directly influence every performance of loud speaker.
Therefore sound cone material characteristic and production technology influence tonequality, the Young's modulus of material, density, damping coefficient, internal loss, intensity etc. are all had higher requirement, and material is hard more, and is light more, and frequency band is just wide more; Internal loss is big more, responds smoothly more, and tonequality is good more.High-grade loudspeaker cone requires that density is little, in light weight, intensity is high, good toughness, even structure etc.
At present the sound cone material is modal the paper material of being divided into, polypropylene based material, resin fibre material, a metal species material etc.Papery sound basin tone color nature, cheap, rigidity, the more agile sensitivity height of material preferably, shortcoming is that moisture resistance is poor, consistency is difficult to control when making.The high frequency response of polypropylene assonance basin is good, high conformity, distortion are low, and is insensitive to ambient humidity, but tone color has viscous slightly, and material itself is difficult for bonding.Resin fibre sound basin, material is hard, it is sluggish to be difficult for producing, and is insensitive to environment, Heat stability is good, but high frequency response is very unsmooth, listen to for a long time and sense of fatigue can occur.The rigidity of metal material, all be higher than other materials, humidity resistance is preferably arranged than spring rate and acoustic propagation velocity, Heat stability is good, the outward appearance of sound basin can be made various different shape and colors and handle, shows different characteristics in appearance, but material is heavier, sensitivity is low.Be used for that the metal material of sound basin is common aluminium alloy, titanium alloy and a magnesium alloy, the density minimum of magnesium alloy materials in three kinds of materials, mechanical loss factor maximum, more suitable than spring rate and aluminium alloy, but propagation velocity is less than aluminium alloy and titanium alloy, and magnesium alloy thermal capacity is minimum, it is best to dispel the heat, effectively alleviate the voice coil loudspeaker voice coil temperature rise, can be because of the power capacity of temperature limitation loud speaker apparently higher than aluminium alloy and titanium alloy, magnesium alloy antidamping damping performance is good, the electromagnetic shielding ability is strong.The loud speaker that adopts magnesium alloy sound pot to make does not have any sound and dyes or distortion, and better tonequality and wideer audiorange can be provided.But magnesium alloy plasticity is very low, obtains by casting method at present, and its shortcoming is that rate of finished products is low, and product has more hole and loose, and intensity is low, and because casting technique requirement wall thickness can not be too thin.
Summary of the invention
The present invention will provide a kind of magnesium alloy sound pot that adopts press-processing method to produce, this sound basin not only can overcome and avoid the shortcoming of traditional material, and have thin thickness, characteristics such as weight is slimmer and more graceful, intensity is higher, rigidity is better, structure is more even, good heat dissipation, the antidamping damping performance is good, the electromagnetic shielding ability is strong and processing cost is low.
For achieving the above object, technical scheme of the present invention is: a kind of magnesium alloy sound pot comprises that be characterized in: the magnesium alloy sheet material density of basin body is 2.78g/mm by the basin body of the whole drawing of magnesium alloy
3, thickness is 0.05 ~ 0.4mm, composition is Al:2.5～3.5; Zn:0.60～1.4; Mn:0.20～1.0; Si :≤0.08; Fe :≤0.003; Ca :≤0.04; Cu :≤0.01; Ni :≤0.001, Mg: surplus.
Basin body is shaped as the horn-like of upper and lower circular open, and the loudspeaker wall thickness is even, and loudspeaker wall shape is type or camber shape linearly.Upper and lower circular open edge is provided with flange, and upper and lower flange is connected with right angle transition of upper and lower circular open edge or round-corner transition.The upper and lower opening shape of horn shape basin body is circle, and upper and lower circle is concentric.
The invention has the beneficial effects as follows: magnesium alloy sound pot thin thickness of the present invention, in light weight, intensity is high, good rigidly, shock-resistant, even structure, good heat dissipation, the antidamping damping performance is good, the electromagnetic shielding ability is strong and processing cost is low, for the user provides better tonequality, wideer audiorange, satisfies the sound basin of the requirement of supersound projector.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is camber shape loudspeaker wall of the present invention, right angle turnup structure schematic diagram;
Fig. 3 is camber loudspeaker wall of the present invention, no turnup structure schematic diagram.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1 to Figure 3, magnesium alloy sound pot of the present invention, it is 2.78g/mm that the material of its basin body adopts density
3Magnesium alloy sheet, thickness is 0.05 ~ 0.4mm, the material composition is Al:2.5～3.5; Zn:0.60～1.4; Mn:0.20～1.0; Si :≤0.08; Fe :≤0.003; Ca :≤0.04; Cu :≤0.01; Ni :≤0.001, Mg: surplus.Basin body adopts the whole drawing of magnesium alloy.
Basin body is shaped as the horn-like of upper and lower circular open 1,2, and loudspeaker wall 3 is thick even, and loudspeaker wall 3 shapes can be linear pattern (Fig. 1), can certainly be camber shape (Fig. 2).Upper and lower opening 1,2 shape of horn shape basin body is circle, and two circles are concentric, but the size difference.Upper and lower circular open 1,2 edge can 4(Fig. 3 without turn-ups), also can flange 4, upper and lower flange 4 adopts right angle transition or round-corner transition all can.
Claims (4)
1. a magnesium alloy sound pot comprises that it is characterized in that: the magnesium alloy sheet material density of described basin body is 2.78g/mm by the basin body of the whole drawing of magnesium alloy
3, thickness is 0.05 ~ 0.4mm, composition is Al:2.5～3.5; Zn:0.60～1.4; Mn:0.20～1.0; Si :≤0.08; Fe :≤0.003; Ca :≤0.04; Cu :≤0.01; Ni :≤0.001, Mg: surplus.
2. magnesium alloy sound pot according to claim 1 is characterized in that: described basin body is shaped as the horn-like of upper and lower circular open, and loudspeaker wall (3) is thick evenly, and loudspeaker wall (3) shape is type or camber shape linearly.
3. magnesium alloy sound pot according to claim 2 is characterized in that: the horn-like edge of described upper and lower opening is provided with flange (4), and upper and lower flange (4) is connected with right angle transition of the horn-like edge of upper and lower opening or round-corner transition.
4. according to claim 2 or 3 described magnesium alloy sound pots, it is characterized in that: the upper and lower opening of described horn shape basin body (1,2) shape is circle, and upper and lower circle is concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010275202 CN101909233B (en) | 2010-09-08 | 2010-09-08 | Magnesium alloy sound pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010275202 CN101909233B (en) | 2010-09-08 | 2010-09-08 | Magnesium alloy sound pot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101909233A true CN101909233A (en) | 2010-12-08 |
| CN101909233B CN101909233B (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010275202 Expired - Fee Related CN101909233B (en) | 2010-09-08 | 2010-09-08 | Magnesium alloy sound pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101909233B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369284A (en) * | 2001-06-04 | 2002-12-20 | Foster Electric Co Ltd | Diaphragm for speaker, and method for manufacturing the same |
| CN2754304Y (en) * | 2004-11-26 | 2006-01-25 | 美隆工业股份有限公司 | Improved structure of loudspeaker |
| US20060133639A1 (en) * | 2004-12-17 | 2006-06-22 | Meiloon Industrial Co., Ltd. | Diaphragm for loudspeaker - magnesium alloy base and multi-layers ceramic structure |
| CN101572851A (en) * | 2008-04-29 | 2009-11-04 | 沈阳航空工业学院 | Magnesium alloy integrally cast sound box and manufacturing method thereof |
-
2010
- 2010-09-08 CN CN 201010275202 patent/CN101909233B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369284A (en) * | 2001-06-04 | 2002-12-20 | Foster Electric Co Ltd | Diaphragm for speaker, and method for manufacturing the same |
| CN2754304Y (en) * | 2004-11-26 | 2006-01-25 | 美隆工业股份有限公司 | Improved structure of loudspeaker |
| US20060133639A1 (en) * | 2004-12-17 | 2006-06-22 | Meiloon Industrial Co., Ltd. | Diaphragm for loudspeaker - magnesium alloy base and multi-layers ceramic structure |
| CN101572851A (en) * | 2008-04-29 | 2009-11-04 | 沈阳航空工业学院 | Magnesium alloy integrally cast sound box and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN101909233B (en) | 2013-10-16 |
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Granted publication date: 20131016 Termination date: 20170908 |