CN203761583U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
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- CN203761583U CN203761583U CN201420184627.2U CN201420184627U CN203761583U CN 203761583 U CN203761583 U CN 203761583U CN 201420184627 U CN201420184627 U CN 201420184627U CN 203761583 U CN203761583 U CN 203761583U
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- voice coil
- magnetic
- coil loudspeaker
- loudspeaker voice
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Abstract
The utility model provides a loudspeaker. A magnetic-gas loop of the loudspeaker comprises an inner magnetic part (25A) and third surfaces (25C). The inner magnetic part (25A) comprises a first surface (31) and second surfaces (32); magnetic fluid (30) is arranged at the peripheries of the first surface (31) and the second surfaces (32). The inner side of a voice coil (24) is provided with the first surface (31) and the second surfaces (32). A magnetic gap (26) is formed between the first surface (31) and the third surface (25C). The outer side of each second surface (32) is provided with an opening part (27). The magnetic fluid (30) fills the space between the first surface (31) and the voice coil (24). The distance between the second surface (32) and the voice coil (24) is larger than that between the first surface and the voice coil (24), and a non-filling part (33) of the magnetic fluid (30) is formed between each second surface (32) and the voice coil (24). The loudspeaker provided by the utility model has the advantages that due to the structure, air in a space (34) can not be sealed. The vibrating limit of a vibrating diaphragm of the loudspeaker can be controlled.
Description
Technical field
The utility model relates to the loud speaker that uses magnetic fluid in magnetism loop.
Background technology
Below, existing loud speaker is described.Existing loud speaker comprises basin frame, the magnetism loop of internal magnetic type, vibrating diaphragm, and voice coil loudspeaker voice coil and magnetic fluid.Magnetism loop comprises magnet steel, clamping plate, magnetic bowl, magnetic gap.Clamping plate and magnetic bowl are formed by magnetic material.
The shape of magnet steel is elongated rectangle.Magnetic bowl comprises elongated rectangular base and side.The end of bottom long side erects upward and forms side.Above bottom, load magnet steel.And, above magnet steel, load clamping plate.Between the side of the side of clamping plate and magnetic bowl, form magnetic gap.Magnetism loop is contained in basin frame in clamping plate direction upward.
The outer circumference end of vibrating diaphragm be connected in basin frame above.Vibrating diaphragm is fixed in one end of voice coil loudspeaker voice coil.The other end of voice coil loudspeaker voice coil is inserted in magnetic gap.In gap between the side of clamping plate and the inner side of voice coil loudspeaker voice coil, fill magnetic fluid.
The prior art document that the utility model is relevant has Japanese Utility Model patent: special permission discloses No. 200933280.
, in the gap between the clamping plate side of existing loud speaker and voice coil loudspeaker voice coil inner side, fill magnetic fluid.Thereupon, vibrating diaphragm, voice coil loudspeaker voice coil and clamping plate, and magnetic fluid surrounds airtight space.Thereby when vibrating diaphragm vibration, the air in space is controlled while outflow outside space, so, the confined problem of the vibration of membrane of shaking there is.
Utility model content
The utility model solves the problems of the technologies described above, and provides a kind of and can control because magnetic fluid causes the restricted loud speaker of the vibration of membrane of shaking.
In order to solve the problems of the technologies described above, loud speaker provided by the utility model comprises: basin frame, the vibrating diaphragm being connected with described basin frame, be located at the voice coil loudspeaker voice coil of described vibrating diaphragm, be contained in the magnetism loop in described basin frame, be located at described magnetism loop, be configured in the interior magnetic portion of described voice coil loudspeaker voice coil inner side, be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second, be located at described magnetism loop, the 3rd of arranging of relatively described first surface, between described first surface and described the 3rd, be provided with magnetic gap, described first surface and described second 's surrounding is provided with magnetic fluid, it is characterized by, the outside of described second is provided with peristome, distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil.Between described first surface and described voice coil loudspeaker voice coil, fill described magnetic fluid, between described second and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
Described loud speaker can be configured to, the area that is greater than described second with the area of described the 3rd relative first surface.
Described loud speaker can be configured to, and described magnetism loop comprises the yoke of loading described interior magnetic portion, and described yoke comprises bottom, the side that relative both ends are bent to form in the end of described bottom, and described trihedral is formed in the inner face of described side.
Described loud speaker can be configured to, and described interior magnetic portion comprises interior magnet steel and be loaded in the train wheel bridge on described interior magnet steel, and described first surface and the second face are formed on the side of described clamping plate.
Described loud speaker can be configured to, and watches described interior magnetic portion from described vibrating diaphragm, and when its shape is rectangular, described first surface is formed at the long edge position of described interior magnetic portion, and described the second face is formed at the minor face place of described interior magnetic portion.
Described loud speaker can be configured to, watch described interior magnetic portion from described vibrating diaphragm, its shape is when omiting track type, described first surface is formed at the side of described interior magnetic portion, and, form parallelly with the long axis direction of described interior magnetic portion, described the second face is circular arc, and, be located at the axial end sides of described interior magnetic minister.
Described loud speaker can be configured to, described interior magnetic portion comprises interior magnet steel and is loaded in the train wheel bridge on this interior magnet steel, the arc sections of described train wheel bridge and the arc sections of described voice coil loudspeaker voice coil form concentric shape, and, the arc sections shape of described train wheel bridge is oval, and the long axis direction of described arc sections becomes the short-axis direction of described train wheel bridge.
Described loud speaker can be configured to, described interior magnetic portion comprises interior magnet steel and is loaded in the train wheel bridge of the runway shape on interior magnet steel, the arc sections of described train wheel bridge and the arc sections of described voice coil loudspeaker voice coil form concentric shape, and the diameter of described train wheel bridge arc sections is greater than the size of the short-axis direction of described train wheel bridge.
Described loud speaker can be configured to, described magnetism loop is provided with the lower plate that loads described interior magnetic portion and a pair of outer steel that is loaded in this lower plate, described interior magnetic portion is provided with interior magnet steel, the magnetic pole of described interior magnet steel is set with the relative direction of contrary magnetic pole with the magnetic pole of outer steel, and described interior magnet steel is arranged between described outer steel.
Another kind of loud speaker provided by the utility model comprises: basin frame, be connected in the vibrating diaphragm of described basin frame, be located at the voice coil loudspeaker voice coil of described vibrating diaphragm, be contained in the magnetism loop in described basin frame, be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side, be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second, be located at described first surface and second magnetic fluid around, it is characterized by, the outside of described second is provided with magnetism peristome, described first surface produces the first magnetic flux density, described second produces the second magnetic flux density, the second magnetic flux density is less than described the first magnetic flux density, between described first surface and voice coil loudspeaker voice coil, fill described magnetic fluid, distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil, between described second and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
Another kind of loud speaker provided by the utility model comprises: basin frame, be connected in the vibrating diaphragm of described basin frame, be located at the voice coil loudspeaker voice coil of described vibrating diaphragm, be contained in the magnetism loop in described basin frame, be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side, be located at the magnetic fluid between side and the described voice coil loudspeaker voice coil of described interior magnetic portion, it is characterized by, described magnetism loop is provided with closes magnetic portion and magnetism peristome, the described loop that closes magnetic portion and form by magnetic gap magnetism, described in being greater than, distance between side and the described voice coil loudspeaker voice coil of the described interior magnetic portion of described magnetism peristome closes magnetic portion, between the side of the described interior magnetic portion of described magnetism peristome and described voice coil loudspeaker voice coil, fill described magnetic fluid, between the side of the described interior magnetic portion of described magnetism peristome and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
Another kind of loud speaker provided by the utility model comprises: basin frame, be connected in the vibrating diaphragm of described basin frame, be located at the voice coil loudspeaker voice coil of described vibrating diaphragm, be contained in the magnetism loop in described basin frame, be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side, be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second, be located at described first surface and second magnetic fluid around, it is characterized by, relative area between described first surface and described voice coil loudspeaker voice coil is greater than the relative area between described second and described voice coil loudspeaker voice coil, distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil, between described first surface and described voice coil loudspeaker voice coil, fill described magnetic fluid, between described second and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
Loud speaker beneficial effect provided by the utility model is: peristome is arranged at the outside of described second, and the distance between second and voice coil loudspeaker voice coil is greater than the distance between first surface and voice coil loudspeaker voice coil.Because, between second and voice coil loudspeaker voice coil, form the non-filling part of magnetic fluid, so, can be not airtight by vibrating diaphragm, voice coil loudspeaker voice coil and clamping plate, and air in the space that surrounds of magnetic fluid.Therefore,, when vibrating diaphragm vibration, the air in space can flow to outside space, can control the vibration limit of vibrating diaphragm.
Brief description of the drawings
Fig. 1 represents the figure above of the loud speaker of the utility model embodiment.
Fig. 2 represents the sectional view of the loud speaker of the utility model embodiment.
Fig. 3 represents the sectional view of the loud speaker of the utility model embodiment.
Fig. 4 represents the magnetism loop concept map of the loud speaker of the utility model embodiment.
Fig. 5 represents the concept map of the loud speaker of another embodiment of the utility model.
Fig. 6 represents the sectional view in the magnetism loop of the loud speaker of another embodiment of the utility model.
Fig. 7 represents the utility model magnetism loop concept map of the loud speaker of another embodiment again.
Fig. 8 represent the loud speaker of another embodiment of the utility model the loop of magnetism again want portion's sectional view.
Fig. 9 represents that the loud speaker of another embodiment of the utility model uses the magnetism loop concept map of clamping plate.
Figure 10 represents that the loud speaker of another embodiment of the utility model uses the magnetism loop concept map of observing from the side of clamping plate.
Symbol description
21 loud speakers
22 basin framves
23 vibrating diaphragms
24 voice coil loudspeaker voice coils
25 magnetism loops
Magnetic portion in 25A
25B magnetic bowl
The 3rd of 25C
Magnet steel in 25D
25E train wheel bridge
26 magnetic gap
27 peristomes
30 magnetic fluids
31 first surfaces
32 second
33 non-filling parts
34 spaces
51 bottoms
52 first sides
125 magnetism loops
125B magnetic bowl
125E train wheel bridge
127 peristomes
152 second sides
225 magnetism loops
225B lower plate
The outer magnetic of 225F portion
225G outer steel
225H train wheel bridge
227 peristomes
325 magnetism loops
327 peristomes
The outer magnetic of 325F portion
325H train wheel bridge
351A loading part
351B connecting portion
501 form magnetism circuit process
502 smear magnetic fluid process
503 insert voice coil loudspeaker voice coil process
Embodiment
The embodiment of loud speaker of the present utility model is described with reference to accompanying drawing below.
Fig. 1, the figure above of the loud speaker of expression the utility model embodiment.Fig. 2 represents the sectional view of the loud speaker of the utility model embodiment.Fig. 3 represents the sectional view of the loud speaker of the utility model embodiment.Fig. 4 represents the magnetism loop concept map of the loud speaker of the utility model embodiment.Fig. 2 represents to cut off along the section line 2-2 shown in Fig. 1 the sectional view of loud speaker.Fig. 3 represents to cut off along the section line 3-3 shown in Fig. 2 the sectional view of loud speaker.
Loud speaker 21 comprises, basin frame 22, vibrating diaphragm 23, voice coil loudspeaker voice coil 24, magnetism loop 25, magnetic gap 26, peristome 27, magnetic fluid 30.Vibrating diaphragm 23 is connected above with basin frame 22.Vibrating diaphragm 23 is located in one end of voice coil loudspeaker voice coil 24.Voice coil loudspeaker voice coil 24 and vibrating diaphragm 23, for example, be connected by adhesive.
Magnetism loop 25 is contained in basin frame 22.Magnetism loop 25 preferably comprises, the interior magnetic 25A of portion and magnetic bowl 25B form.Magnetic bowl 25B comprises, bottom 51 and the first side 52 form.Further, on bottom 51, load interior magnet steel 25D.The first side 52 erects two the relative ends in bottom 51.Now, the 3rd 25C is formed on the inner side of the first side 52.The end of the long side direction of bottom 51 is located in preferred the first side 52.Such structure, can strengthen the magnetic flux density of magnetic gap 26.Further, preferred the first side 52, is bent to form from two relative ends of bottom 51.Such structure, can easily form magnetic bowl 25B.
The interior magnetic 25A of portion comprises interior magnet steel 25D, is arranged at the inner side of voice coil loudspeaker voice coil 24.In addition, the preferred interior magnetic 25A of portion comprises train wheel bridge 25E.Now, train wheel bridge 25E be arranged on interior magnet steel 25D above.First surface 31 and second 32 are formed on the side of train wheel bridge 25E.Thus, first surface 31 and the 3rd 25C are oppositely arranged, and between first surface 31 and the 3rd 25C, form magnetic gap 26.The other end of voice coil loudspeaker voice coil 24 is inserted in magnetic gap 26.
The interior magnetic 25A of portion can not comprise train wheel bridge.Now, by side the form magnetic gap 26 relative to the first side 52 of interior magnet steel 25D.Thereupon, form first surface 31 and second 32 in the side of interior magnet steel 25D.
While watching the interior magnetic 25A of portion from vibrating diaphragm 23, the shape of the interior magnetic 25A of portion is preferably run-track shaped.While watching the interior magnetic 25A of portion from vibrating diaphragm 23, the shape of the interior magnetic 25A of portion is not limited to run-track shaped.For example, while watching the interior magnetic 25A of portion from vibrating diaphragm 23, the shape of the interior magnetic 25A of portion can be also circular, square, and rectangle, oval etc.
In magnetism loop 25, first surface 31 is relative with the inner face of voice coil loudspeaker voice coil 24 with second 32.Magnetic fluid 30 is located at first surface 31 and second 32 around.First surface and voice coil loudspeaker voice coil are filled magnetic fluid 30.Structure thus, forms the magnetic portion that closes in magnetism loop 25.Close in magnetic portion, by train wheel bridge 25E, interior magnet steel 25D, magnetic bowl 25B, magnetic gap 26 forms the loop of magnetism.Its result, produces the first magnetic flux density in magnetic gap 26.
The outside of second 32 is provided with peristome 27.In peristome 27, be not provided with second 32 towards the first side 52.Both,, at peristome 27, in magnetic bowl 25B, do not form the first side 52.Its result, at the open magnetism of peristome 27.Thereupon, the second magnetic flux density producing for second 32 is less than the first magnetic flux density.
Now, the area that is preferably greater than second 32 with the area of described the 3rd first surface that 25C is relative 31.Such structure can strengthen the first magnetic flux density.For example, the interior magnetic 25A of portion be shaped as rectangle time, form first surface 31 at the long side of the interior magnetic 25A of portion, form second 32 at the short brink of the interior magnetic 25A of portion.Or the interior magnetic 25A of portion is shaped as when slightly run-track shaped, forms first surface 31 on the side parallel with the interior magnetic 25A of portion long axis direction.In addition, in the end sides of the interior magnetic 25A of portion long axis direction, form second 32 of circular arc.
The interior magnetic 25A of portion is shaped as when slightly run-track shaped, and the shape of voice coil loudspeaker voice coil 24 is also slightly run-track shaped., the shape of the interior magnetic 25A of portion and the shape of voice coil loudspeaker voice coil 24 are identical shapes.Just, the distance between second and voice coil loudspeaker voice coil is greater than the distance between first surface and voice coil loudspeaker voice coil.As mentioned above, because the distance between second and voice coil loudspeaker voice coil is greater than the distance between first surface and voice coil loudspeaker voice coil, between second 32 and voice coil loudspeaker voice coil 24, form the non-filling part 33 of magnetic fluid 30.Its result, by vibrating diaphragm 23, voice coil loudspeaker voice coil 24 and train wheel bridge 25E, and the air in the space 34 that surrounds of magnetic fluid 30 is not closed., non-filling part 33 serves as the air vent hole between space 34 and 34 outsides, space.Thereupon, when vibrating diaphragm 23 vibrates, the air in space 34 flows out to the outside in space 34, can control the confined phenomenon of vibration of vibrating diaphragm 23.
It is little that the outside of second 32 has the second magnetic flux density that 27, the second 32 of peristomes launch.That is, the size that is first surface 32 magnetic flux density of launching at all the accepted magnetic force of voice coil loudspeaker voice coil 24 plays control action, and second 32 magnetic force of launching is little to the contribution of voice coil loudspeaker voice coil 24 all magnetic force of accepting.Its result, becomes large by the distance of second 32 and voice coil loudspeaker voice coil 24, between second 32 and voice coil loudspeaker voice coil 24, forms non-filling part 33, can reduce all magnetic force of accepting of voice coil loudspeaker voice coil 24 and reduce degree.Thereupon, realize the miniaturization of loud speaker 21, or, the width of loud speaker 21 is done narrowlyer.For example, the interior magnetic 25A of portion be shaped as rectangle or track type time, the size of the short direction of the interior magnetic 25A of portion can be used as about 2.5mm.Now, the size of the short direction of loud speaker 21 profile can be used as about 7mm, realizes the narrower loud speaker of width 21.
The interior magnetic 25A of portion is shaped as when slightly run-track shaped, and the arc sections of train wheel bridge 25E is shaped as ellipse.Just, the preferred arc sections of train wheel bridge 25E and the arc sections of voice coil loudspeaker voice coil 24 form concentric shape.Now, the major axis of train wheel bridge 25E arc sections becomes the direction of the minor axis of train wheel bridge 25E.Further, the shape of train wheel bridge 25E arc sections is not limited to ellipse.For example, the diameter of train wheel bridge 25E arc sections also can be greater than the size of train wheel bridge 25E short-axis direction.
Fig. 5 represents the concept map of another embodiment loud speaker.Fig. 6 represents the sectional view in the magnetism loop of another embodiment loud speaker.Fig. 6 represents, the cross section in the magnetism loop cutting off with section line 6-6 in Fig. 5.Magnetism loop 125 comprises, the interior magnetic 25A of portion, magnetic bowl 125B, magnetic gap 26, peristome 127.The interior magnetic 25A of portion preferably comprises, interior magnet steel 25D, train wheel bridge 125E.Magnetic bowl 125B comprises, 52, the second sides 152,51, the first side, bottom.Now, erect from the end of bottom 51 and form the setting that adjoins each other of 152, the first sides 52, the second side and the second side 152.Structure thus, the side of train wheel bridge 125E is relative with the medial surface of the second side 152.Its result, on train wheel bridge 125E, forms first surface 31 on the position relative with the second side 152.Further, in 152 inner sides, the second side, on the position relative with the side of train wheel bridge 125E, form the 3rd 25C.Thereupon, between train wheel bridge 125E and the second side 152, also form magnetic gap 26, can strengthen the magnetic force of supplying with voice coil loudspeaker voice coil 24.
In gap between the first side 52 and the second side 152, form peristome 127., second 32 forms not relative mutually with the first side 52 and the second side 152.Structure thus, the outside of second 32 forms peristome 27.Distance between second and voice coil loudspeaker voice coil is greater than the distance between first surface and voice coil loudspeaker voice coil.Its result, forms non-filling part 33 between second 32 and voice coil loudspeaker voice coil 24.For example, when the bottom 51 of magnetic bowl is rectangle, train wheel bridge 125 is also rectangle.Now, preferably on four jiaos of train wheel bridge 125E, arrange second 32.Preferably be bent to form the second side 152 from 51 ends, bottom.Such structure, the production that can improve magnetic bowl 125B.For example, while being provided with the first side 52 on long both sides on hand, bottom 51, the both sides on 51 short hand limits, bottom are provided with the second side 152.
Also essentially rectangular of the shape of non-filling part 33.For example, being shaped as rectangular time of non-filling part 33, the length of the minor face of non-filling part 33 is greater than the distance between first surface and voice coil loudspeaker voice coil.Further, for example, when non-filling part 33 is foursquare, the length of side of non-filling part 33 is greater than the distance between first surface and voice coil loudspeaker voice coil.Structure thus, also fills magnetic fluid 30 between the side of train wheel bridge 125E minor face and voice coil loudspeaker voice coil 24.Thereupon, strengthen the magnetic flux density of magnetic gap 26.
Fig. 7 represents and the magnetism loop concept map of another embodiment loud speaker.Fig. 8 represent and the magnetism loop of another embodiment loud speaker want portion's sectional view.Magnetism loop 225 comprises, the interior magnetic 25A of portion, lower plate 225B, magnetic gap 26, peristome 227 and the outer magnetic 225F of portion.In preferred, the magnetic 25A of portion comprises interior magnet steel 25D and train wheel bridge 25E.Now, train wheel bridge 25E be loaded in interior magnet steel 25D above.The preferred outer magnetic 225F of portion comprises a pair of outer steel 225G and train wheel bridge 225H.Now, train wheel bridge 225H be loaded in outer steel 225G above.
The interior magnetic 25A of portion and the outer magnetic 225F of portion are loaded on lower plate 225B.The interior magnetic 25A of portion is folded between an external magnetic 225F of portion.Structure thus, forms magnetic gap 26 between the interior magnetic 25A of portion and the outer magnetic 225F of portion.For example, when magnetism loop 225 comprises train wheel bridge 25E and train wheel bridge 225H, between train wheel bridge 25E and train wheel bridge 225H, form magnetic gap 26.The magnetic pole of interior magnet steel 25D and outer steel 225G, installs with contrary mutually direction.Such structure, can strengthen the magnetic flux density of magnetic gap 26.
In preferred, the magnetic 25A of portion is rectangular shape.For example, the interior magnetic 25A of portion be shaped as rectangle time, preferably the long limit of the long limit of the interior magnetic 25A of portion and the outer magnetic 225F of portion is oppositely arranged.Structure thus, can strengthen first surface 31 and the 3rd the relative area of 25C.Thereupon, strengthen the magnetic flux density of magnetic gap 26.Now, the outside of the minor face of the interior magnetic 25A of portion forms peristome 227., between the side of the interior magnetic 25A of portion minor face and voice coil loudspeaker voice coil 24, form non-filling part 33.The shape of the interior magnetic 25A of portion is not limited to rectangle.For example, can be also run-track shaped.
Fig. 9 represents that the loud speaker of another embodiment uses the magnetism loop concept map of clamping plate.Figure 10 represents the loud speaker of another embodiment, observes from the side the concept map in the loud speaker magnetism loop that uses clamping plate.Magnetism loop 325 comprises, the interior magnetic 25A of portion, lower plate 225B, magnetic gap 26, peristome 327 and the outer magnetic 325F of portion.The outer magnetic 325F of portion comprises a pair of outer steel 225G and train wheel bridge 325H.Above outer steel 225G, load train wheel bridge 325H.The upper interior magnetic 25A of portion and the outer magnetic 325F of portion of loading of lower plate 225B.Between the one external magnetic 325F of portion, be folded with the interior magnetic 25A of portion.
Train wheel bridge 325H comprises, loading part 351A and connecting portion 351B.Train wheel bridge 325H is loaded in the form of lower plate 225B with a pair of outer steel 225G, form a pair of loading part 351A be loaded in a pair of outer steel 225G above.Connecting portion 351B connects between a pair of loading part 351A.For example, when the interior magnetic 25A of portion is rectangle, preferably the side of the minor face of the exhausted 351B of portion of the company of making and the interior magnetic 25A of portion relatively arranges.Between the short side of the interior magnetic 25A of portion and connecting portion 351B, also can form magnetic gap 26.Thereupon, strengthen the magnetic flux density of magnetic gap 26.
Preferably be bent to form connecting portion 351B downwards from the end of loading part 351A.Structure thus, the side area relative with connecting portion 351B of the interior magnetic 25A of portion minor face becomes large.
In industry, utilize possibility
Loud speaker of the present utility model, has the effect of vibration limit of controlling vibrating diaphragm, is particularly useful in and uses at narrow width type loud speaker.
Claims (12)
1. a loud speaker, has:
Basin frame,
The vibrating diaphragm being connected with described basin frame,
Be located at the voice coil loudspeaker voice coil of described vibrating diaphragm,
Be contained in the magnetism loop in described basin frame,
Be located at described magnetism loop, be configured in the interior magnetic portion of described voice coil loudspeaker voice coil inner side,
Be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second,
Be located at described magnetism loop, the 3rd of arranging of relatively described first surface,
Between described first surface and described the 3rd, be provided with magnetic gap,
Described first surface and described second 's surrounding is provided with magnetic fluid, it is characterized by,
The outside of described second is provided with peristome, and the distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil;
Between described first surface and described voice coil loudspeaker voice coil, fill described magnetic fluid;
Between described second and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
2. loud speaker as claimed in claim 1, is characterized by,
The area that is greater than described second with the area of described the 3rd relative first surface.
3. loud speaker as claimed in claim 1, is characterized by,
Described magnetism loop comprises the yoke of loading described interior magnetic portion, and described yoke comprises bottom, the side that relative both ends are bent to form in the end of described bottom, and described trihedral is formed in the inner face of described side.
4. loud speaker as claimed in claim 1, is characterized by,
Described interior magnetic portion comprises interior magnet steel and is loaded in the train wheel bridge on described interior magnet steel, and described first surface and the second face are formed on the side of described clamping plate.
5. loud speaker as claimed in claim 1, is characterized by,
Watch described interior magnetic portion from described vibrating diaphragm, when its shape is rectangular, described first surface is formed at the long edge position of described interior magnetic portion, and described the second face is formed at the minor face place of described interior magnetic portion.
6. loud speaker as claimed in claim 1, is characterized by,
Watch described interior magnetic portion from described vibrating diaphragm, its shape is slightly when track type, and described first surface is formed at the side of described interior magnetic portion, and, form parallelly with the long axis direction of described interior magnetic portion, described the second face is circular arc, and, be located at the axial end sides of described interior magnetic minister.
7. loud speaker as claimed in claim 6, is characterized by,
Described interior magnetic portion comprises interior magnet steel and is loaded in the train wheel bridge on this interior magnet steel, the arc sections of described train wheel bridge and the arc sections of described voice coil loudspeaker voice coil form concentric shape, and the arc sections shape of described train wheel bridge is oval, the long axis direction of described arc sections becomes the short-axis direction of described train wheel bridge.
8. loud speaker as claimed in claim 6, is characterized by,
Described interior magnetic portion comprises interior magnet steel and is loaded in the train wheel bridge of the runway shape on interior magnet steel, the arc sections of described train wheel bridge and the arc sections of described voice coil loudspeaker voice coil form concentric shape, and the diameter of described train wheel bridge arc sections is greater than the size of the short-axis direction of described train wheel bridge.
9. loud speaker as claimed in claim 1, is characterized by,
Described magnetism loop is provided with the lower plate that loads described interior magnetic portion and a pair of outer steel that is loaded in this lower plate, described interior magnetic portion is provided with interior magnet steel, the magnetic pole of described interior magnet steel is set with the relative direction of contrary magnetic pole with the magnetic pole of outer steel, and described interior magnet steel is arranged between described outer steel.
10. a loud speaker, has:
Basin frame,
Be connected in the vibrating diaphragm of described basin frame,
Be located at the voice coil loudspeaker voice coil of described vibrating diaphragm,
Be contained in the magnetism loop in described basin frame,
Be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side,
Be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second,
Be located at described first surface and second magnetic fluid around, it is characterized by,
The outside of described second is provided with magnetism peristome,
Described first surface produces the first magnetic flux density,
Described second produces the second magnetic flux density, and the second magnetic flux density is less than described the first magnetic flux density,
Between described first surface and voice coil loudspeaker voice coil, fill described magnetic fluid,
Distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil, forms the non-filling part of described magnetic fluid between described second and described voice coil loudspeaker voice coil.
11. 1 kinds of loud speakers, have:
Basin frame,
Be connected in the vibrating diaphragm of described basin frame,
Be located at the voice coil loudspeaker voice coil of described vibrating diaphragm,
Be contained in the magnetism loop in described basin frame,
Be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side,
Be located at the magnetic fluid between side and the described voice coil loudspeaker voice coil of described interior magnetic portion, it is characterized by,
Described magnetism loop is provided with closes magnetic portion and magnetism peristome,
The described loop that closes magnetic portion and form by magnetic gap magnetism,
Described in being greater than, distance between side and the described voice coil loudspeaker voice coil of the described interior magnetic portion of described magnetism peristome closes magnetic portion,
Between the side of the described interior magnetic portion of described magnetism peristome and described voice coil loudspeaker voice coil, fill described magnetic fluid,
Between the side of the described interior magnetic portion of described magnetism peristome and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
12. 1 kinds of loud speakers, have:
Basin frame,
Be connected in the vibrating diaphragm of described basin frame,
Be located at the voice coil loudspeaker voice coil of described vibrating diaphragm,
Be contained in the magnetism loop in described basin frame,
Be located at described magnetism loop, the interior magnetic portion forming in described voice coil loudspeaker voice coil inner side,
Be located at described interior magnetic portion, the first surface that relatively described voice coil loudspeaker voice coil forms and second,
Be located at described first surface and second magnetic fluid around, it is characterized by,
Relative area between described first surface and described voice coil loudspeaker voice coil is greater than the relative area between described second and described voice coil loudspeaker voice coil,
Distance between described second and described voice coil loudspeaker voice coil is greater than the distance between described first surface and described voice coil loudspeaker voice coil,
Between described first surface and described voice coil loudspeaker voice coil, fill described magnetic fluid,
Between described second and described voice coil loudspeaker voice coil, form the non-filling part of described magnetic fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-003240 | 2013-06-07 | ||
| JP2013003240U JP3185469U (en) | 2013-06-07 | 2013-06-07 | Speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761583U true CN203761583U (en) | 2014-08-06 |
Family
ID=50429232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184627.2U Expired - Fee Related CN203761583U (en) | 2013-06-07 | 2014-04-16 | Loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3185469U (en) |
| CN (1) | CN203761583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107637096A (en) * | 2015-06-17 | 2018-01-26 | 奥音科技（北京）有限公司 | Integrated acoustic receiver and antenna equipment and operating method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246008A (en) * | 2015-10-26 | 2016-01-13 | 上海创米科技有限公司 | Resonance type loudspeaker |
| CN111464926B (en) * | 2020-04-09 | 2021-11-12 | 东莞市猎声电子科技有限公司 | Double-diaphragm vibration horn system |
-
2013
- 2013-06-07 JP JP2013003240U patent/JP3185469U/en not_active Expired - Lifetime
-
2014
- 2014-04-16 CN CN201420184627.2U patent/CN203761583U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107637096A (en) * | 2015-06-17 | 2018-01-26 | 奥音科技（北京）有限公司 | Integrated acoustic receiver and antenna equipment and operating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3185469U (en) | 2013-08-15 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |