CN104066037A - Loudspeaker device - Google Patents
Loudspeaker device Download PDFInfo
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- CN104066037A CN104066037A CN201410068008.1A CN201410068008A CN104066037A CN 104066037 A CN104066037 A CN 104066037A CN 201410068008 A CN201410068008 A CN 201410068008A CN 104066037 A CN104066037 A CN 104066037A
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Abstract
The invention relates to a loudspeaker device characterized in that the loudspeaker comprises a support, a vibration plate combined at the upper part of the support, a winding shaft combined at the bottom of the vibration plate, voice coils winding around the winding shaft, and a magnetic circuit combined to the support and providing the magnetic field for the voice coils, the upper part of the support is open, the support is provided with a plurality of sidewalls, the inner part of the support is provided with a loading space, the loudspeaker device also comprises rods combined at the bottom of the vibration plate, and dampers combined to the vibration plate and the rods and supporting the rods in an elastic manner, at least a part of an area of an inner side surface of the support also comprises a first heat radiation layer, the first heat radiation layer dissipates the heat conducted through the dampers via the contact with the dampers.
Description
Technical field
The present invention relates to a kind of speaker unit, relate in particular to the improved speaker unit of heat dispersion.
Background technology
In dynamic speaker device, voice coil loudspeaker voice coil is access in the electric current that the variation with sound signal changes, and voice coil loudspeaker voice coil obtains the electromagnetic force that the magnetic field of magnetic circuit provides, so that vibration plate vibrates, thereby produce acoustic pressure.
When speaker unit is worked, voice coil loudspeaker voice coil is continued to access electric current, because the resistance of voice coil loudspeaker voice coil produces heat.Voice coil loudspeaker voice coil temperature when work can rise to more than 100 ℃, and the heating of voice coil loudspeaker voice coil not only reduces the efficiency of loud speaker, also causes the fault of speaker unit.
Voice coil loudspeaker voice coil heating can make the magnet temperature of speaker unit rise, and magnet generally under hot environment electric field strength weaken, its result causes the actuating force of loud speaker to decline, thereby causes the problem that loudspeaker enclosure is low.This temperature rises and causes the problem that magnetic field intensity weakens, and neodium magnet is even more serious than ferrite lattice.
In addition, the slender type TV part speaker unit that design height is low consists of plural magnetic circuit and plural voice coil loudspeaker voice coil sometimes.In this case, input current is diverted to a plurality of voice coil loudspeaker voice coils, therefore divides loses heat, there will not be the problem of serious heating.But when slender type TV part speaker unit consists of single magnetic circuit and single voice coil loudspeaker voice coil, because input current concentrates on single voice coil loudspeaker voice coil, so heating can cause serious performance low.
Secondly, voice coil loudspeaker voice coil is by copper conductor or copper-clad aluminum conductor (copper clad aluminium wire; CCAW) wire forms with the insulating barrier that wraps up it, when voice coil loudspeaker voice coil adstante febre can burn out insulating barrier, between the voice coil loudspeaker voice coil that causes coiling to form, is short-circuited, thereby the resistance of voice coil loudspeaker voice coil is changed, reduce the efficiency of loud speaker, when serious, speaker unit even cannot be worked, and causes bad.
Now, have multiple for improving the method for speaker unit radiating efficiency.
U.S.'s publication the 6th, 815, No. 063 " magnetic fluid " discloses a kind of speaker unit that utilizes magnetic fluid (ferrofluid) to improve radiating efficiency.Wherein, magnetic fluid (ferrofluid) is configured to contact voice coil loudspeaker voice coil, and the heat that storage voice coil loudspeaker voice coil produces, and the heat of storing to exterior conductive, to improve the radiating efficiency of speaker unit.
But because magnetic fluid itself has very high viscosity, so magnetic fluid plays the effect of the vibration resistance of vibrational system, the displacement of reduction vibrating membrane when contact voice coil loudspeaker voice coil.For the height with the high input electric power of hundreds of watts is exported speaker unit, owing to having high drive, so the viscosity of magnetic fluid produces extremely very micro-impact to the displacement of vibrating membrane.But for the TV part of low input electric power with 10 watts of left and right with for speaker unit or Minitype speaker device, because its actuating force is relatively low, therefore the viscosity of magnetic fluid seriously reduces the displacement of vibrating membrane, thereby there is the problem of serious reduction loudspeaker enclosure.Therefore at the little parts of input electric power with not utilizing magnetic fluid to improve heat dispersion in speaker unit.Korea S's publication No. 2004-0050960 " loud speaker " discloses a kind of by being pasted on iron core (yoke), and the radiating component that is formed with a plurality of fin improves the speaker unit of radiating efficiency.Being pasted on radiating component unshakable in one's determination can be by discharging the heat of speaker unit inside to outside, improve the radiating efficiency of speaker unit, but because iron core can not directly contact the voice coil loudspeaker voice coil as thermal source, therefore can only emit part heat by radiation or convection current, owing to emitting heat by conduction, thus radiating efficiency to improve effect extremely very micro-.
Korean Utility Model discloses No. 0218617 " loud speaker with heat abstractor " and discloses a kind of by forming at iron core the speaker unit that louvre improves radiating efficiency.Being formed at louvre unshakable in one's determination can be by emitting the heat of speaker unit inside to outside, improve the radiating efficiency of speaker unit, but because iron core can not directly contact the voice coil loudspeaker voice coil as thermal source equally, therefore pass through louvre, can only emit heat by radiation or convection current, cannot emit heat by conduction, moreover, owing to not possessing enforceable convective structure, thus radiating efficiency to improve effect extremely very micro-.
Korean Utility Model discloses No. 0107822 " voice coil heat radiation structure of Coin shape loud speaker " and discloses a kind of prolongation of the upper surface to oscillating plate roll, and forms radiating component at extension, to improve the speaker unit of radiating efficiency.The radiating component of roll extension dispels the heat by the roll directly contacting with voice coil loudspeaker voice coil, so can dispel the heat by having the conduction pattern of high heat transference efficiency, and its radiating efficiency is high.But this structure need to possess the extension extending to the upper surface of oscillating plate, therefore for not adopting pyramid type oscillating plate, but the speaker unit of employing dome, plane oscillating plate, extension causes the rising of height.Parts speaker unit in particular for TV, smart mobile phone, panel computer, notebook computer etc., along with working as very thinization of forepiece, densification trend, must can be installed in limited space, so the general employing of slender type parts speaker unit can effectively utilize plane oscillating plate or the dome oscillating plate in space.Therefore the radiator structure, dispelling the heat by roll extension is difficult to be applicable to present parts speaker unit.
[prior art file]
[patent documentation]
U.S.'s publication the 6th, 815, No. 063;
No. 2004-0050960th, Korea S's publication;
Korean Utility Model discloses No. 0218617;
Korean Utility Model discloses No. 0107822.
Summary of the invention
Technical problem
For addressing the above problem, according to speaker unit of the present invention, its object provides the required bar of damping force and plays ripple (damper) for speaker unit is comprised to oscillating plate, support comprises for emitting by playing the first heat dissipating layer of the heat of ripple conduction, therefore can be by the support medial surface with a large amount of areas as radiator structure, and to the first heat dissipating layer transferring heat, to emit heat, improve the radiating efficiency of speaker unit by the most significant conduction pattern of heat transference efficiency.
According to the speaker unit of the embodiment of the present invention, another object is the second heat dissipating layer that support is comprised be formed at its lateral surface, thereby not only can utilize the medial surface of support, can also be by the lateral surface of support as radiator structure, area of dissipation is maximized, improve the radiating efficiency of speaker unit.
Speaker unit according to another embodiment of the present invention, another object is for forming support with the high metal of heat transfer efficiency, heat-conducting resin, thermal conductive ceramic, rather than with the low general polymerization resin of existing heat transfer efficiency, support itself is played a role as the first heat dissipating layer and the second heat dissipating layer, and the radiating efficiency of speaker unit, as radiator structure, is improved in the whole region of support.
Speaker unit according to another embodiment of the present invention, another object can play the heat radiation jut of the effect of fin (heat dissipation fin) for the first heat dissipating layer or the second heat dissipating layer are also comprised, improves the radiating efficiency of speaker unit by increasing area of dissipation.
Finally, the speaker unit of its another he embodiment according to the present invention, another object is that the bottom surface, bar and the bullet ripple that make roll, oscillating plate comprise radiating pattern, formation from the voice coil loudspeaker voice coil as thermal source to roll, the heat conduction path that connects successively of the bottom surface of oscillating plate, bar, bullet ripple, thereby make the first heat dissipating layer that is contacted with bullet ripple by conduction, emit rapidly the heat that voice coil loudspeaker voice coil produces.
Technical scheme
For reaching described object, speaker unit of the present invention, it comprises: support, its top is open, and has a plurality of sidewalls, inside has loading space; Oscillating plate, it is incorporated into the top of described support; Roll, it is incorporated into the bottom of described oscillating plate; Voice coil loudspeaker voice coil, it winds the line in described roll; And magnetic circuit, it is incorporated into described support, and provides magnetic field to described voice coil loudspeaker voice coil, and described speaker unit, characterized by further comprising: bar, it is incorporated into the bottom of described oscillating plate; And bullet ripple, it is incorporated into described oscillating plate and described bar, with bar described in resiliency supported, wherein, at least a portion region of described support medial surface also comprises the first heat dissipating layer, and described the first heat dissipating layer, by the described bullet ripple of contact, is emitted by the heat of described bullet ripple conduction.
According to the speaker unit of the embodiment of the present invention, it is characterized in that: described support also comprises heat transfer member and the second heat dissipating layer, described heat transfer member is by described the first heat dissipating layer of contact, pass through the heat of described the first heat dissipating layer conduction, described the second heat dissipating layer is formed at least a portion region of described support lateral surface, by contacting described heat transfer member, emit the heat conducting by described heat transfer member.
Speaker unit, is characterized in that according to another embodiment of the present invention, and described support also comprises: hot type outlet, it is for discharging the heat of described internal stent to outside.
Speaker unit according to further embodiment of this invention, characterized by further comprising radiating component, and described radiating component, by described the second heat dissipating layer of contact, is emitted by the heat of described the second heat dissipating layer conduction.
Speaker unit according to further embodiment of this invention, is characterized in that: at least one in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer of described the first heat dissipating layer forms.
Speaker unit according to further embodiment of this invention, is characterized in that: at least one in metal, heat-conducting resin and thermal conductive ceramic of described support forms, and forms one with described the first heat dissipating layer.
According to the speaker unit of further embodiment of this invention, it is characterized in that: any one in silver (Ag), gold (Au), copper (Cu) and aluminium (Al) of described support forms, or formed by least any one the alloy containing in silver (Ag), golden (Au), copper (Cu) and aluminium (Al).
Speaker unit according to further embodiment of this invention, is characterized in that: described the first heat dissipating layer also comprises at least one first heat radiation jut, and it is formed at the medial surface of described support, and forms to the interior side direction prolongation of described support.
According to the speaker unit of further embodiment of this invention, it is characterized in that: described heat transfer member consists of through hole and filling part, wherein said through hole is formed at described support, and described filling part is by forming for filling any one of metal, heat-conducting resin and thermal conductive ceramic of described through hole.
According to the speaker unit of further embodiment of this invention, it is characterized in that: at least one in metal level, heat-conducting resin layer, Graphene (graphene) layer and thermal conductive ceramic layer of described heat transfer member forms, and is formed at the top section of described support.
According to the speaker unit of further embodiment of this invention, it is characterized in that: the bottom of described support is open, described heat transfer member in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer at least any one forms, and be formed at the bottom section of described support.
Speaker unit according to further embodiment of this invention, is characterized in that: described the second heat dissipating layer also comprises at least one second heat radiation jut, and it is formed at the lateral surface of described support, and forms to the outside direction prolongation of described support.
Speaker unit according to further embodiment of this invention, is characterized in that: described radiating component also contacts the described magnetic circuit exposing by described support.
According to the speaker unit of further embodiment of this invention, it is characterized in that: surperficial at least a portion region of described roll also comprises for emitting the first radiating pattern of the heat of described voice coil loudspeaker voice coil generation, at least a portion region of the bottom surface of described oscillating plate also comprises the second radiating pattern, described the second radiating pattern is by described the first radiating pattern of contact, emit by the heat of described the first radiating pattern conduction, surperficial at least a portion region of described bar also comprises the 3rd radiating pattern, described the 3rd radiating pattern is by described the second radiating pattern of contact, emit by the heat of described the second radiating pattern conduction, surperficial at least a portion region of described bullet ripple also comprises thermal image that scatters, described the scatters thermal image by described the 3rd radiating pattern of contact, emit by the heat of described the 3rd radiating pattern conduction, described the first heat dissipating layer is by contacting described thermal image that scatters, emit the heat that scatters thermal image conduction by described the.
According to the speaker unit of further embodiment of this invention, it comprises: support, and its top is open, and has a plurality of sidewalls, inside has loading space; Oscillating plate, it is incorporated into the top of described support; Roll, it is incorporated into the bottom of described oscillating plate; Voice coil loudspeaker voice coil, it winds the line in described roll; And magnetic circuit, it is incorporated into described support, and provide magnetic field to described voice coil loudspeaker voice coil, it is characterized in that, described support comprises peristome, and described opening is at least a portion region of described frame bottom, described support also comprises radiator, by described peristome, expose at least a portion region of described spreader surface, emits described voice coil loudspeaker voice coil institute liberated heat to outside.
According to the speaker unit of further embodiment of this invention, described support also comprises the step of the inner peripheral surface that is formed at described sidewall, and described radiator is arranged at described step.
According to the speaker unit of further embodiment of this invention, described radiator consists of metallic plate.
According to the speaker unit of further embodiment of this invention, described radiator also comprises a plurality of hot type outlets that are formed between upper surface and lower surface.
According to the speaker unit of further embodiment of this invention, described radiator also comprises the fin that is formed at its downside.
Technique effect
According to the speaker unit of above-mentioned technical problem, speaker unit comprises to oscillating plate to be provided the required bar of damping force and plays ripple (damper), support comprises for emitting by playing the first heat dissipating layer of the heat of ripple conduction, therefore can be by the support medial surface with a large amount of areas as radiator structure, and pass through the most significant conduction pattern of heat transference efficiency to the first heat dissipating layer transferring heat, to emit heat, improve the radiating efficiency of speaker unit.
According to the speaker unit of the embodiment of the present invention, support is comprised and be formed at the second heat dissipating layer of its lateral surface, thereby not only can utilize the medial surface of support, can also be by the lateral surface of support as radiator structure, area of dissipation is maximized, improve the radiating efficiency of speaker unit.
Speaker unit according to another embodiment of the present invention, with the high metal of heat transfer efficiency, heat-conducting resin, thermal conductive ceramic, form support, rather than with the low general polymerization resin of existing heat transfer efficiency, support itself is played a role as the first heat dissipating layer and the second heat dissipating layer, and the radiating efficiency of speaker unit, as radiator structure, is improved in the whole region of support.
Speaker unit according to another embodiment of the present invention, the first heat dissipating layer or the second heat dissipating layer are also comprised can play the heat radiation jut of the effect of fin (heat dissipation fin), by increasing area of dissipation, improve the radiating efficiency of speaker unit.
Finally, speaker unit according to another embodiment of the present invention, make bottom surface, the bar of roll, oscillating plate and play ripple to comprise radiating pattern, bottom surface, bar, the bullet ripple to roll, oscillating plate as the voice coil loudspeaker voice coil of thermal source connected successively, form heat conduction path, make the first heat dissipating layer that is contacted with bullet ripple by conduction, emit rapidly the heat that voice coil loudspeaker voice coil produces.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the speaker unit of the embodiment of the present invention;
Fig. 2 is the cutaway view of the speaker unit of the embodiment of the present invention;
Fig. 3 is the partial sectional view of the support of the embodiment of the present invention;
Fig. 4 is the partial sectional view of the support of another embodiment of the present invention;
Fig. 5 is the partial sectional view of the support of another embodiment of the present invention;
Fig. 6 is the partial sectional view of the support of another embodiment of the present invention;
Fig. 7 is the partial sectional view of the support of another embodiment of the present invention;
Fig. 8 is the partial sectional view of the support of another embodiment of the present invention;
Fig. 9 is the cutaway view of the heat conduction path in the speaker unit of the demonstration embodiment of the present invention;
Figure 10 is the stereogram of the roll of the embodiment of the present invention;
Figure 11 is the roll of the embodiment of the present invention and the combination figure of oscillating plate;
Figure 12 is roll, the bar of the embodiment of the present invention, the combination figure of oscillating plate;
Figure 13 is the bar of the embodiment of the present invention, the combination figure of bullet ripple;
Figure 14 is the cutaway view of the speaker unit of another embodiment of the present invention;
Figure 15 is the vertical view of the radiator of another embodiment of the present invention;
Figure 16 is the upward view of the radiator of another embodiment of the present invention.
Description of reference numerals
110: oscillating plate 120: roll
130: voice coil loudspeaker voice coil 140: magnetic circuit
150: support 160: bar
170: play ripple (damper) 180: radiator
Embodiment
Fig. 1 shows the member assembling structure of speaker unit 100 of the present invention, and Fig. 2 shows the section of speaker unit 100 of the present invention.
Speaker unit 100 of the present invention consists of support 150, oscillating plate 110, roll 120, voice coil loudspeaker voice coil 130, magnetic circuit 140, bar 160 and bullet ripple 170.
The top of support 150 is open, and has a plurality of sidewalls, thereby inside has loading space.Support 150 is for forming the profile of speaker unit 100, inner containing component.Support 150 can be for the open type in the upper surface in conjunction with oscillating plate 110, or open support 150 forms in the subregion of side or the subregion of bottom surface.
Oscillating plate 110 is incorporated into the top of support 150, and its function is by generation of vibration acoustic pressure.The material of oscillating plate 110 is not subject to specific limited, material can be paper, resin, metal etc., can be by vibration plane, around the forming around portion (surround) and for the limit with support 150 combinations (edge) of vibration plane, its section configuration can be planar shaped, taper shape, cheese etc.The shape of oscillating plate 110 can be to comprise the shapes such as the polygonal of quadrangle or circle, ellipse, track shape, and for example, for the speaker unit 100 for parts of TV, its shape can be the square with major axis and minor axis.
Roll 120 is incorporated into the bottom of oscillating plate 110, preferably make being shaped as circle, ellipse or track shape cylinder or comprising tetragonal polygonal cylinder body shape of roll 120, make upper surface and lower surface all open, with the increment of minimized vibrations system weight.
Voice coil loudspeaker voice coil 130 winds the line in roll 120, is transfused to from outside sound signal.Voice coil loudspeaker voice coil 130 can be by copper conductor or copper-clad aluminum conductor (copper cladded aluminium wire; CCAW) form the outer surface of insulating barrier parcel wire.
Magnetic circuit 140 is incorporated into and is formed on the bottom surface of support 150 or magnetic circuit 140 insertion grooves of support 150, to voice coil loudspeaker voice coil 130, provides magnetic field.Magnetic circuit 140 consists of (yoke) 143 unshakable in one's determination, magnet 142, upper plate (topplate) 141 conventionally, and the position relationship according to magnet 142 with voice coil loudspeaker voice coil 130, is divided into internal magnetic type, external magnetic type, mixed type.
Bar 160 is similar to the bottom that roll 120 ground are incorporated into oscillating plate 110, plays ripple 170 and is incorporated into oscillating plate 110 and bar 160, elastic supporting bar 160.In existing speaker unit 100, a side that generally plays ripple 170 is incorporated into roll 120, and opposite side is incorporated into support 150, but according to the present invention, a side that plays ripple 170 is incorporated into bar 160, and opposite side is incorporated into support 150.For this structure, especially, in having the oscillating plate 110 of rectangle structure, not increasing magnetic circuit 140 and roll 120 also can provide to the front end face of oscillating plate 110 uniform damping force.
Preferably make bar 160 be similar to roll 120, make it be shaped as the shapes such as polygonal cylinder, circular cylinder, elliptic cylindrical, track shape cylinder, make upper surface and lower surface open, with the increment of minimized vibrations system weight.
The shape that plays ripple 170 can be to provide flexible flat shape, makes it possible to provide damping force, for example, can be formed by metal leaf spring or the textile material with ripple (corrugation).In order to make to play ripple 170, be easy to combination with support 150, preferably make support 150 have for the single stage portion with playing ripple 170 combinations.
In addition, as shown in Figure 3, at least a portion region of its medial surface also comprises that the function of the first heat dissipating layer 151, the first heat dissipating layers 151 is to play ripple 170 by contact to support 150, emits by playing the heat of ripple 170 conduction.The heat producing in order to be uniformly distributed inside loudspeakers, preferably makes the first heat dissipating layer 151 be formed at the whole medial surface of support 150.
The first heat dissipating layer 151 can be in metal level, graphene layer and the thermal conductive ceramic layer of the good silver of thermal conductivity (Ag), gold (Au), copper (Cu), aluminium (Al) etc. at least one form.
According to embodiment, can form support 150 with at least one material in the good metal of thermal conductivity, heat-conducting resin or thermal conductive ceramic in addition, itself and the first heat dissipating layer 151 are formed as one.Now about support 150, preferably use in silver (Ag), gold (Au), copper (Cu) or aluminium (Al) any one or with at least any one the alloy formation support 150 comprising in silver (Ag), gold (Au), copper (Cu) and aluminium (Al).
According to this embodiment, support 150 itself plays the effect of radiating component, emits rapidly the heat of speaker unit 100 inside to outside, thereby has the effect of the radiating efficiency that improves heat sink arrangement 100.
In addition, in order to increase the cooling surface area of the first heat dissipating layer 151, preferably as shown in Figure 4, further comprise the medial surface that is formed at support 150, and extend to the interior side direction of support 150 at least one the first heat radiation jut 152 forming.According to this embodiment, due to the cooling surface area increase of the first heat dissipating layer 151, therefore there is the effect of the radiating efficiency that improves speaker unit 100.
< the second embodiment: the outside of support 150 has the speaker unit 100> of the second heat dissipating layer
Fig. 5 to Fig. 7 shows that the outside of support 150 has the embodiment of the second heat dissipating layer 154.According to the speaker unit 100 of second embodiment of the invention, support 150 also comprises heat transfer member 153 and the second heat dissipating layer 154, heat transfer member 153 is by contact the first heat dissipating layer 151, pass through the heat of the first heat dissipating layer 151 conduction, the second heat dissipating layer 154 is formed at least a portion region of support 150 lateral surfaces, by contact heat transfer member 153, emit the heat conducting by heat transfer member 153.
According to the second embodiment, even if metal that need not be expensive forms support 150, with relatively cheap resin material, form support 150, also can to the outside of support 150, emit easily the heat of support 150 inside, there is the effect of the radiating efficiency that improves speaker unit 100.
As shown in Figure 5, heat transfer member 153 can consist of through hole and filling part, wherein said through hole is formed at support 150, described filling part is by forming for filling any one of metal, heat-conducting resin and thermal conductive ceramic of described through hole, therefore can be at support 150 form heat transfer path between inner and support 150 outsides.
Another kind method as shown in Figure 6, heat transfer member 153 can be in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer at least one form, and be formed at the top section of support 150, therefore can between support 150 inside and support 150 outsides, form heat transfer path.
As shown in Figure 7, the bottom of support 150 is for open for another kind method, and heat transfer member 153 can be in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer, and at least any one forms, and is formed at the bottom section of described support.
In addition, in order to increase the cooling surface area of the second heat dissipating layer 154, preferably as shown in Figure 8, further comprise the lateral surface that is formed at support 150, and extend to the lateral direction of support 150 at least one the second heat radiation jut 155 forming.According to this embodiment, due to the cooling surface area increase of the second heat dissipating layer 154, therefore there is the effect of the radiating efficiency that improves speaker unit 100.
In order to improve the heat dispersion of speaker unit 100, in order to emit the heat of support 150 inside to outside, support 150 can also comprise the hot type outlet (not shown) for the heat to 150 inside of support described in outside drain.
According to another embodiment, speaker unit 100 also comprises radiating component (not shown), and radiating component, by contact the second heat dissipating layer 154, is emitted by the heat of the second heat dissipating layer 154 conduction.More preferably make radiating component also contact the equal magnetic circuit unshakable in one's determination 140 exposing by support 150.
< the 3rd embodiment: by conduction, emit the speaker unit 100> of the heat of voice coil loudspeaker voice coil 130 to support 150
The thermal source of speaker unit 100 is voice coil loudspeaker voice coils 130.In above embodiment, illustrated and played the heat that ripple 170 sends by absorption voice coil loudspeaker voice coils 130 such as radiation, convection current, conduction, and by the exothermic speaker unit 100 of support 150.But compare with radiation or convection current, heat conduction efficiency during conduction is higher.Therefore,, if form heat conduction path at the voice coil loudspeaker voice coil 130 as thermal source between support 150, the heat dispersion of speaker unit 100 can be brought up to highest level.
The arrow of Fig. 9 shows the heat transfer path from voice coil loudspeaker voice coil 130 to support 150.
In order to form this heat transfer path, the surface of roll 120, oscillating plate 110, bar 160, bullet ripple 170 has the radiating pattern being formed by the good material of thermal conductivity, or itself is formed by the good material of thermal conductivity.
More specifically as shown in figure 10, at least a portion region on roll 120 surfaces also comprises for emitting the first radiating pattern 121 of the heat of described voice coil loudspeaker voice coil 130 generations.
Then as shown in figure 11, at least a portion region of oscillating plate 110 bottom surfaces also comprises that the second radiating pattern 111, the second radiating pattern 111, by contact the first radiating pattern 121, emit by the heat of the first radiating pattern 121 conduction.
Then as shown in figure 12, at least a portion region on bar 160 surfaces also comprises that the 3rd radiating pattern 161, the three radiating pattern 161, by contact the second radiating pattern 111, emit by the heat of the second radiating pattern 111 conduction.
Then as shown in figure 13, at least a portion region that plays ripple 170 surfaces also comprises that the thermal image 171, that scatters scatters thermal image 171 by contact the 3rd radiating pattern 161, emits by the heat of the 3rd radiating pattern 161 conduction.
The first heat dissipating layer 151 that is formed at support 150 inner sides is by contacting the thermal image 171 that scatters, and emits the heat that scatters thermal image 171 conduction by the.
The first radiating pattern to the scatter that thermal image 121,111,161,171 can be in metal level, heat-conducting resin layer, graphene layer or the thermal conductive ceramic layer of the good silver of thermal conductivity (Ag), gold (Au), copper (Cu), aluminium (Al) etc. at least one form.
According to embodiment, can curl into roll 120 and bar 160 with aluminium sheet, roll 120 and the first radiating pattern 121 are formed as one, or bar 160 and the 3rd radiating pattern 161 are formed as one.About jolting plate 110, can, by form the method for oscillating plate or the method for pasting aluminium sheet to the bottom surface of vibration plane with aluminium sheet, oscillating plate 110 and the second radiating pattern 111 be formed as one.Playing ripple 170 can be formed by metal leaf spring, makes to play ripple 170 and the thermal image 171 that scatters and forms as one.
According to embodiment, in order to increase cooling surface area, the first radiating pattern to the thermal image 121,111,161,171 that scatters can also comprise the heat radiation jut of the effect that at least one plays fin.
The speaker unit 100 of another embodiment of the present invention is described referring to Figure 14 to Figure 16.
The speaker unit of the embodiment of the present invention consists of support 150, oscillating plate 110, roll 120, voice coil loudspeaker voice coil 130, magnetic circuit 140, bar 160 and radiator 180.The present embodiment can comprise bar 160 as previous embodiment, but can also be applicable to not have the speaker unit 100 of bar 160.
The top of support 150 is open, and has a plurality of sidewalls, and inside has loading space, and oscillating plate 110 is incorporated into the top of framework 150.
Roll 120 is incorporated into the bottom of oscillating plate, and voice coil loudspeaker voice coil 130 winds the line in roll 120.Magnetic circuit 140 provides magnetic field to voice coil loudspeaker voice coil 130, and is incorporated into support 150.
Support 150 comprises peristome 157-1,157-2, it is formed at least a portion region of support 150 bottoms, support 150 also comprises and radiator 180-1,180-2, radiator 180-1,180-2 expose its surperficial at least a portion region by peristome 157-1,157-2, thereby to outside, emit voice coil loudspeaker voice coil 120 liberated heats.Support 150 can also comprise for radiator 180-1, the step 156 of 180-2 combination.Radiator 180-1,180-2 also can be incorporated into the bottom surface of support 150, but in this case, due to the standoff distance increase of the voice coil loudspeaker voice coil 120 with as thermal source, so radiating efficiency reduces.But can, by forming the step 156 that can make radiator 180-1,180-2 and voice coil loudspeaker voice coil 120 arrange closelyer, improve the radiating efficiency of radiator 180-1,180-2.
About radiator 180-1,180-2, preferably by the good material of thermal conductivity, formed.For example, can be formed by metallic plate, heat-conducting resin, pottery etc.About radiator 180-1,180-2, preferably as shown in figure 15, in upper surface and the lower surface of radiator 180-1,180-2, form a plurality of for improving the hot type outlet 181 of radiating efficiency.
For the additive method that improves radiator 180-1,180-2 radiating efficiency as shown in figure 16, make the bottom surface of radiator 180-1,180-2 also comprise fin 182.
In addition, Figure 14 is extremely illustrated in fig. 16 is to have two separated radiator 180-1,180-2, but can radiator 180-1,180-2 be formed as one according to embodiment, or makes quantity be greater than three.
Claims (19)
1. a speaker unit, this device comprises: support, its top is for open, and has a plurality of sidewalls, and inside has loading space; Oscillating plate, it is incorporated into the top of described support; Roll, it is incorporated into the bottom of described oscillating plate; Voice coil loudspeaker voice coil, it winds the line in described roll; And magnetic circuit, it is incorporated into described support, and provides magnetic field to described voice coil loudspeaker voice coil, it is characterized in that, also comprises:
Bar, it is incorporated into the bottom of described oscillating plate; And
Play ripple, it is incorporated into described oscillating plate and described bar, with bar described in resiliency supported,
Wherein, at least a portion region of described support medial surface also comprises the first heat dissipating layer, and described the first heat dissipating layer, by the described bullet ripple of contact, is emitted by the heat of described bullet ripple conduction.
2. speaker unit according to claim 1, is characterized in that:
Described support also comprises heat transfer member and the second heat dissipating layer;
Described heat transfer member is by described the first heat dissipating layer of contact, pass through the heat of described the first heat dissipating layer conduction, described the second heat dissipating layer is formed at least a portion region of described support lateral surface, by contacting described heat transfer member, emits the heat conducting by described heat transfer member.
3. speaker unit according to claim 2, is characterized in that, described support also comprises:
Hot type outlet, it is for discharging the heat of described internal stent to outside.
4. speaker unit according to claim 2, is characterized in that, also comprises:
Radiating component, described radiating component, by described the second heat dissipating layer of contact, is emitted by the heat of described the second heat dissipating layer conduction.
5. speaker unit according to claim 1, is characterized in that:
At least one in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer of described the first heat dissipating layer forms.
6. speaker unit according to claim 5, is characterized in that:
At least one in metal, heat-conducting resin and thermal conductive ceramic of described support forms, and forms one with described the first heat dissipating layer.
7. speaker unit according to claim 6, is characterized in that:
Any one in silver (Ag), gold (Au), copper (Cu) and aluminium (Al) of described support forms, or formed by least any one the alloy containing in silver (Ag), golden (Au), copper (Cu) and aluminium (Al).
8. speaker unit according to claim 1, is characterized in that:
Described the first heat dissipating layer also comprises at least one first heat radiation jut, and it is formed at the medial surface of described support, and forms to the interior side direction prolongation of described support.
9. speaker unit according to claim 2, is characterized in that:
Described heat transfer member consists of through hole and filling part, and wherein said through hole is formed at described support, and described filling part is by forming for filling any one of metal, heat-conducting resin and thermal conductive ceramic of described through hole.
10. speaker unit according to claim 2, is characterized in that:
At least one in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer of described heat transfer member forms, and is formed at the top section of described support.
11. speaker units according to claim 2, is characterized in that:
The bottom of described support is for open, described heat transfer member in metal level, heat-conducting resin layer, graphene layer and thermal conductive ceramic layer at least any one forms, and be formed at the bottom section of described support.
12. speaker units according to claim 2, is characterized in that:
Described the second heat dissipating layer also comprises at least one second heat radiation jut, and it is formed at the lateral surface of described support, and forms to the outside direction prolongation of described support.
13. speaker units according to claim 4, is characterized in that:
Described radiating component also contacts the described magnetic circuit exposing by described support.
14. speaker units according to claim 1, is characterized in that:
Surperficial at least a portion region of described roll also comprises for emitting the first radiating pattern of the heat that described voice coil loudspeaker voice coil produces,
At least a portion region of the bottom surface of described oscillating plate also comprises the second radiating pattern,
Described the second radiating pattern, by described the first radiating pattern of contact, is emitted by the heat of described the first radiating pattern conduction,
Surperficial at least a portion region of described bar also comprises the 3rd radiating pattern,
Described the 3rd radiating pattern, by described the second radiating pattern of contact, is emitted by the heat of described the second radiating pattern conduction,
Surperficial at least a portion region of described bullet ripple also comprises thermal image that scatters,
Described the scatters thermal image by described the 3rd radiating pattern of contact, emit by the heat of described the 3rd radiating pattern conduction,
Described the first heat dissipating layer is by contacting described the thermal image that scatters, and emits the heat that scatters thermal image conduction by described the.
15. 1 kinds of speaker units, it comprises: support, its top is open, and has a plurality of sidewalls, inside has loading space; Oscillating plate, it is incorporated into the top of described support; Roll, it is incorporated into the bottom of described oscillating plate; Voice coil loudspeaker voice coil, it winds the line in described roll; And magnetic circuit, it is incorporated into described support, and provides magnetic field to described voice coil loudspeaker voice coil, it is characterized in that,
Described support comprises peristome, described opening is at least a portion region of described frame bottom, and described support also comprises radiator, by described peristome, expose at least a portion region of described spreader surface, emits described voice coil loudspeaker voice coil institute liberated heat to outside.
16. speaker units according to claim 15, is characterized in that:
Described support also comprises the step of the inner peripheral surface that is formed at described sidewall, and described radiator is arranged at described step.
17. speaker units according to claim 16, is characterized in that:
Described radiator consists of metallic plate.
18. speaker units according to claim 17, is characterized in that:
Described radiator also comprises a plurality of hot type outlets that are formed between upper surface and lower surface.
19. speaker units according to claim 17, is characterized in that:
Described radiator also comprises the fin that is formed at its downside.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130030247 | 2013-03-21 | ||
| KR10-2013-0030247 | 2013-03-21 | ||
| KR1020140012269A KR101502269B1 (en) | 2013-03-21 | 2014-02-03 | Speaker device |
| KR10-2014-0012269 | 2014-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104066037A true CN104066037A (en) | 2014-09-24 |
Family
ID=51553530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068008.1A Pending CN104066037A (en) | 2013-03-21 | 2014-02-27 | Loudspeaker device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104066037A (en) |
Cited By (6)
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| CN105916082A (en) * | 2015-02-23 | 2016-08-31 | 思力威斯有限公司 | Speaker device |
| CN108781333A (en) * | 2016-03-17 | 2018-11-09 | 奥音科技（镇江）有限公司 | electroacoustic transducer with improved thermal characteristics |
| CN109257686A (en) * | 2018-02-21 | 2019-01-22 | 天津富禄通信技术有限公司 | The loudspeaker assembly of sound output and vibrating function is provided |
| CN109587606A (en) * | 2018-11-14 | 2019-04-05 | 歌尔股份有限公司 | A kind of sounding device and electronic equipment |
| CN110915234A (en) * | 2017-08-08 | 2020-03-24 | 松下知识产权经营株式会社 | Speaker and acoustic device |
| CN115297415A (en) * | 2017-12-31 | 2022-11-04 | 宁波升亚电子有限公司 | Loudspeaker and damper and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916082A (en) * | 2015-02-23 | 2016-08-31 | 思力威斯有限公司 | Speaker device |
| CN108781333A (en) * | 2016-03-17 | 2018-11-09 | 奥音科技（镇江）有限公司 | electroacoustic transducer with improved thermal characteristics |
| CN108781333B (en) * | 2016-03-17 | 2020-11-13 | 奥音科技（镇江）有限公司 | Audio transducer |
| CN110915234A (en) * | 2017-08-08 | 2020-03-24 | 松下知识产权经营株式会社 | Speaker and acoustic device |
| CN115297415A (en) * | 2017-12-31 | 2022-11-04 | 宁波升亚电子有限公司 | Loudspeaker and damper and application thereof |
| CN109257686A (en) * | 2018-02-21 | 2019-01-22 | 天津富禄通信技术有限公司 | The loudspeaker assembly of sound output and vibrating function is provided |
| CN109587606A (en) * | 2018-11-14 | 2019-04-05 | 歌尔股份有限公司 | A kind of sounding device and electronic equipment |
| CN109587606B (en) * | 2018-11-14 | 2021-01-15 | 歌尔股份有限公司 | Sound production device and electronic equipment |
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