CN205681622U - A kind of loudspeaker - Google Patents
A kind of loudspeaker Download PDFInfo
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- CN205681622U CN205681622U CN201620387309.5U CN201620387309U CN205681622U CN 205681622 U CN205681622 U CN 205681622U CN 201620387309 U CN201620387309 U CN 201620387309U CN 205681622 U CN205681622 U CN 205681622U
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- voice coil
- ring
- loudspeaker
- plate diaphragm
- loudspeaker according
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Abstract
The utility model discloses a kind of loudspeaker, on the basis of the radiating mode of traditional voice coil loudspeaker voice coil perforate, the back side of plate diaphragm is designed as hemicone structure, it is ensured that maximize symmetric design air-vent while intensity, effectively the heat in neodymium iron boron magnetic circuit is distributed by thermal convection current herein.The problem vibrating instability for solution in the case of high-power, has done the thickening process of 0.2mm at the knuckle position of ring.The utility model is finally capable of the powerful target of small size, reduces product cost simultaneously.Product of the present utility model can be applied and realize good low frequency characteristic on small size audio amplifier.
Description
Technical field
The utility model, in International Patent Classification (IPC), belongs to loudspeaker, sensor group, i.e. HO4R, particularly to
Woofer.
Background technology
Woofer is when being applied to ultra-thin or portable small size audio amplifier, because this type of audio amplifier inner space has
Limit, if to realize that specified 50W's is high-power, the caloric value of neodymium iron boron magnetic circuit is very big, so needing to improve the grade of magnetic circuit, this
Sample can improve the cost of product, and because heat radiation deficiency can produce the risk of hydraulic performance decline.It is known that ferro-aluminum boron magnets is heat-resisting
Higher, cost is higher, in order to reduce cost, it would be desirable to the problem solving heat radiation on the basis of the loudspeaker of script, traditional method
One of be in magnetic circuit perforate, our common radiating mode is to hit hole on magnetic circuit, but, the drawback of this mode is, a:
Magnetic flux can be caused to decline, and sensitivity also can decline, b: when doing Ultrathin speaker, because casing is relatively thin, loudspeaker may be with case
Body is close to, and air-flow can be caused to flow out, and magnetic property can be brought to decline, simultaneously limited in small size audio amplifier inner space situation
Under, it is not easily accomplished because of miscellaneous part layout；Another way is to punch at voice coil loudspeaker voice coil, but in the application of large power long stroke
In the case of cannot meet radiating requirements.
In addition, bass energy sense sufficient during in order to realize ultra-thin or portable sound-box device, need the spirit of improving product
Sensitivity, in the case that magnetic energy product and product oscillating mass limit, needs to strengthen as far as possible the effective area of bass vibration.And pass
The circle of system or the design of square symmetry structure bass will cause the waste using space.
Content of the invention
Goal of the invention: technical problem to be solved in the utility model is to provide a kind of unconventional size of ultra-thin panel shape,
Low cost, the specified power that bears is up to 50W, and highly sensitive woofer.
Technical scheme: for solving above-mentioned technical problem, a kind of loudspeaker that the present invention provides, including frame, be arranged on basin
Magnet in frame, voice coil loudspeaker voice coil, be located at the plate diaphragm above frame and centering piece；Described centering piece is arranged on simultaneously cincture in frame
Voice coil loudspeaker voice coil, described plate diaphragm is provided with one along the ring of the plate diaphragm length of side, and described plate diaphragm interlude has one to ring side
To protruding hemicone structure, the described hemicone structure vertex of a cone is provided with a circular hole, and hemicone structure cone is radiating area.Described
Radiating area is the ellipse in hemicone structure tangent with circular hole, solid by equal angular reinforcement between circular hole and ring
Determine, and radiating area is divided into some louvres by reinforcement.
Further, described plate diaphragm is rectangle.
Further, described voice coil loudspeaker voice coil is interspersed in circular hole, and keeps a determining deviation with train wheel bridge and U iron.
Further, in the case of powerful, non-linear distortion is prevented.Thickness at foursquare arc shape section for the described ring
Degree exceedes remaining ring section, and the thickness at ring foursquare arc shape section exceedes remaining ring section more than 0.2m.
Further, described plate diaphragm is provided with a dust cap.
Further, described magnet is externally provided with a U iron.
Further, described magnet is additionally provided with a train wheel bridge, is magnet on the downside of train wheel bridge.
The back side of plate diaphragm, on the basis of the radiating mode of traditional voice coil loudspeaker voice coil perforate, is designed as half cone by the utility model
Body structure, and maximize increase air-vent, effectively the heat in neodymium iron boron magnetic circuit is distributed by thermal convection current herein,
Cost is reduced when ensure that properties of product.
Because product sensitivity (SPL) and LogIt is directly proportional, again because of magnetic energy product (Bl) and equivalent mass
(Mms) being required to be limited by cost and space and Frequency, we can only strengthen effective area (Sd), through in many ways equal
Weighing apparatus, finally we have selected the rectangle size design of 92mm*125mm, and its effective area reaches 73.5cm^2, than tradition 4 cun low
Band loudspeaker improves about 36%.In order to ensure stability during the high-power vibration of 50Watt, we optimize and devise vibration system
The ring of system and the hemicone structure at the vibrating diaphragm back side, concrete grammar is to have thickeied with optimum experimental hemicone knot in the corner of ring
Arrangement mode during structure perforate.By the unconventional symmetrical size that this product design is 4 inches * 5 inches, ring is at circular arc section
Thickness exceed problem unstable when remaining ring section can alleviate vibration.
Beneficial effect: the present invention in terms of existing technologies, has the advantage that
1) the utility model is by the heat radiation perforate of the size design of plate diaphragm, protruding hemicone structure and its uniqueness
Design, the heat in neodymium iron boron magnetic circuit is distributed by thermal convection current effectively, does not results in the decline of magnetic property, can be at big work(
Also can ensure heat radiation in the case of rate long stroke efficiently, solving loudspeaker in Ultrathin speaker can be close to frequently result in gas with casing
The technical problem that stream cannot flow out, and without wanting high-grade ferro-aluminum boron magnets with high costs, greatly reduce cost.
2) design by plate diaphragm for the utility model, in the case of keeping high efficiency and heat radiation, ensure that ultra-thin sound
The interior layout of case, solves the technical problem conflicted between the interior layout of Ultrathin speaker in tradition and heat radiation.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the back side hemicone structural representation of the utility model middle plateform vibrating diaphragm.
Wherein, 1:U iron；2: magnet；4: train wheel bridge；5: frame；6: centering piece；7 plate diaphragms；8: ring；9 voice coil loudspeaker voice coils；10
Dust cap；11: circular hole；12；Hemicone structure；13；Louvre；14: the circular arc of ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings it is further described.
A kind of loudspeaker, including the 5th, frame is arranged on magnet in frame 5 the 2nd, is located at the voice coil loudspeaker voice coil 3 of magnet 2 circumference, is located at basin
Plate diaphragm 7 above frame 5 and centering piece 6；In described centering piece 6 is arranged on frame 5 and around magnet 2, described flat board shakes
Film 7 interlude has a hemicone structure 12 protruding to ring direction, and described hemicone structure 12 is provided with a circular hole 11, is justifying
There are reinforcement and louvre 13 in hole 11.Described plate diaphragm 7 is in square.Described plate diaphragm 7 interlude has one to voice coil loudspeaker voice coil side
To circular hole 11, fixed by equal angular reinforcement between circular hole 11 and ring 8, and hemicone structure 12 be divided into by reinforcement
Some louvres 13.Voice coil loudspeaker voice coil 9 is interspersed in circular hole 11, and keeps a determining deviation with train wheel bridge 4 and U iron 1；Described plate diaphragm 7
It is provided with a dust cap 10.Described magnet is externally provided with a U iron 1.It is additionally provided with a train wheel bridge 4 on described magnet.
The utility model FINAL APPEARANCE a size of 125mm(length) * 92mm(width) * 48mm(height), lowest resonance frequency point is
50Hz, sensitivity is 80dB, and rated power reaches 50Watt.Its size and performance can be used as the woofer of portable audio amplifier
Use, can be used for again the design for ultra-thin subwoofer, meet current speaker products day by day frivolous and easily design requirement, and
Can reach like product on the market to be beyond one's reach bass effect..
The size of this product is the rectangle structure of 5 inches * 4 inches, in the case of powerful, can be easily caused non-thread
Property distortion, in order to solve this problem, we have carried out thickening process, ring foursquare arc shape 14 sections at 4 knuckles of ring
The thickness at place exceedes remaining ring section more than 0.2m.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a loudspeaker, it is characterised in that: include frame (5), the magnet being arranged in frame (5), voice coil loudspeaker voice coil (3), be located at basin
The plate diaphragm (7) of frame (5) top and centering piece (6)；In described centering piece (6) is arranged on frame (5) and around voice coil loudspeaker voice coil
(9), described plate diaphragm is provided with one along the ring (8) of plate diaphragm (7) length of side, and described plate diaphragm (7) interlude has one
The hemicone structure (12) protruding to ring (8) direction, the described hemicone structure vertex of a cone is provided with a circular hole (11), and hemicone is tied
Structure cone is radiating area.
2. loudspeaker according to claim 1, it is characterised in that: described radiating area for tangent with circular hole (11) in half cone
The ellipse of body structure, is fixed by equal angular reinforcement between circular hole (11) and ring (8), and heat radiation is distinguished by reinforcement
Become some louvres (13).
3. loudspeaker according to claim 1, it is characterised in that: described voice coil loudspeaker voice coil (9) is interspersed in circular hole (11), and with upper
Clamping plate (4) and U iron (1) keep spacing.
4. loudspeaker according to claim 1, it is characterised in that: described plate diaphragm (7) and ring (8) in square and
Four angles are circular arc.
5. loudspeaker according to claim 4, it is characterised in that: the thickness of (14) at the foursquare arc shape section of described ring
Exceed remaining ring section.
6. loudspeaker according to claim 5, it is characterised in that: the thickness of (14) at the foursquare arc shape section of described ring
Exceed remaining ring section more than 0.2m.
7. loudspeaker according to claim 1, it is characterised in that: described plate diaphragm (7) is provided with a dust cap (10).
8. loudspeaker according to claim 1, it is characterised in that: described magnet is externally provided with a U iron (1).
9. loudspeaker according to claim 1, it is characterised in that: it is additionally provided with a train wheel bridge (4) on described magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387309.5U CN205681622U (en) | 2016-04-29 | 2016-04-29 | A kind of loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387309.5U CN205681622U (en) | 2016-04-29 | 2016-04-29 | A kind of loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205681622U true CN205681622U (en) | 2016-11-09 |
Family
ID=57439312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620387309.5U Active CN205681622U (en) | 2016-04-29 | 2016-04-29 | A kind of loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205681622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810770A (en) * | 2018-08-06 | 2018-11-13 | 歌尔股份有限公司 | A kind of acoustical generator |
-
2016
- 2016-04-29 CN CN201620387309.5U patent/CN205681622U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810770A (en) * | 2018-08-06 | 2018-11-13 | 歌尔股份有限公司 | A kind of acoustical generator |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |