CN207978118U - Planar voice-coil loudspeaker - Google Patents
Planar voice-coil loudspeaker Download PDFInfo
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- CN207978118U CN207978118U CN201820353628.3U CN201820353628U CN207978118U CN 207978118 U CN207978118 U CN 207978118U CN 201820353628 U CN201820353628 U CN 201820353628U CN 207978118 U CN207978118 U CN 207978118U
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Abstract
A kind of planar voice-coil loudspeaker, including central magnet, interior enclosing magnet, outer ring magnet, planar voice-coil vibrating diaphragm and pedestal.Central magnet, the interior magnet and outer ring magnet of enclosing are magnet array, and are placed in pedestal.Central magnet there is axis and be parallel to the axial magnetic of axis to.Inside enclose the outer periphery that magnet is compassingly set at central magnet, inside enclose magnet with magnetic to the radial magnetic perpendicular to axis to.Outer shroud magnet ring encloses the outer periphery of magnet in be set to, outer ring magnet have be parallel to axis and with axial magnetic to opposite opposite shaft orientation magnetic to.Planar voice-coil vibrating diaphragm is provided with planar voice-coil, and planar voice-coil corresponds to magnet array.Magnet array can concentrate magnetic force, and planar voice-coil whole face is layed on planar voice-coil vibrating diaphragm, and the vibration of membrane that makes to shake is more uniformly distributed, and preferably performance is provided in high-low sound frequency.
Description
Technical field
The utility model is related to electroacoustic fields, especially planar voice-coil loudspeaker.
Background technology
Traditional coil-moving speaker generally comprises vibrating diaphragm, voice coil and magnet.Voice coil is the inner ring for being connected to vibrating diaphragm
Part, and in the gap of magnet.When current signal passes through voice coil, voice coil generate magnetic field, and with the magnetic field of permanent magnet
The suction or repulsion that reciprocation generates push diaphragm oscillations.
Due to traditional moving-coil speaker, voice coil is attached in the part below vibrating diaphragm, when current signal passes through voice coil
When the magnetic field reciprocation of the magnetic field of generation and permanent magnet, vibrating diaphragm to the drive of voice coil and generate vibration, and vibrating can be by shaking
The position that film is connect with voice coil diffuses out in a manner of such as water ripples.Due to the diffusion having time of vibration, the difference of position, this
Kind phenomenon is known as diaphagras.Diaphagras can make shake vibration of membrane and inequality.In addition, when the promotion of reciprocation generation
When power deficiency, it may also reduce vibration of membrane of shaking, reducing the sound press of specific frequency, especially high pitch frequency range and bass frequency range influences
Most very.
Utility model content
In order to solve problem encountered in aforementioned prior art, a kind of planar voice-coil loudspeaker is provided herein.Surface sound
Circle loud speaker includes central magnet, interior encloses magnet, outer ring magnet, planar voice-coil vibrating diaphragm and pedestal.Central magnet has axis
And axial magnetic is to, axial magnetic to being parallel to axis.The outer periphery that magnet is compassingly set at central magnet is inside enclosed, inside enclosing magnet has
Radial magnetic is to radial magnetic is to perpendicular to axis.Outer shroud magnet ring encloses the outer periphery of magnet in being set to, and outer ring magnet has phase
Anti- axial magnetic is to, opposite shaft orientation magnetic to being parallel to axis and with axial magnetic to for opposite direction.During planar voice-coil vibrating diaphragm is adjacent to
Magnet, interior the same side for enclosing magnet and outer ring magnet, planar voice-coil vibrating diaphragm is entreated to be provided with planar voice-coil, the position pair of planar voice-coil
Should in central magnet, interior enclose magnet and outer ring magnet.Pedestal includes bottom plate and ring flange.Ring flange is around the ring for being set to bottom plate
Periphery to form storage tank, be equipped in storage tank central magnet, it is interior enclose magnet and outer ring magnet, planar voice-coil vibrating diaphragm is fixedly arranged on
On ring flange.
In some embodiments, it is hollow and annular inside to enclose magnet.Further, it includes two sector electromagnet groups inside to enclose magnet
At hollow and annular, and two sector electromagnets be respectively provided with the first magnetic to and the second magnetic to.First magnetic to the second magnetic to all perpendicular to
Axis.Further, two sector electromagnets each other be in isogonism distribution setting or be symmetric setting, or combinations thereof.
In some embodiments, outer ring magnet is hollow and annular.
In some embodiments, planar voice-coil vibrating diaphragm includes opposite first surface and second surface, on first surface
It is provided with planar voice-coil.Further, planar voice-coil is helix voice coil.
In further embodiments, back side voice coil, and back side voice coil are more provided on the second surface of planar voice-coil vibrating diaphragm
It is electrically connected planar voice-coil.Further, planar voice-coil vibrating diaphragm offers intercommunicating pore, and planar voice-coil passes through with back side voice coil to be connected to
Hole is electrically connected to each other.Further, planar voice-coil vibrating diaphragm is circular membrane, and intercommunicating pore is opened in the center of circle of circular membrane.
In some embodiments, pedestal, which further includes, multiple keeps away glue groove.It keeps away glue groove by bottom plate to be recessed, and keeps away the position point of glue groove
Not Dui Yingyu central magnet, interior enclose magnet and outer ring magnet.
In some embodiments, central magnet and interior enclose between magnet have the first gap, interior enclose magnet and outer ring magnet
Between have the second gap.Bottom plate offers at least one perforation, and perforation runs through bottom plate, and connects with the first gap or the second gap
It is logical.
Further, pedestal includes multiple first positioning columns and multiple second positioning columns.First positioning column and second is determined
Position column is extended by bottom plate, and the first positioning column is located in the first gap, and the second positioning column is located in the second gap, and perforation is located at
Between first positioning column or between the second positioning column.
Further, pedestal further includes an at least venthole.Venthole runs through bottom plate, and is located at the first positioning column and second
Between positioning column.Further, it inside encloses magnet and more opens up an at least sound regulating hole, sound regulating hole encloses magnet, and sound regulating hole through interior
Position correspond to venthole.
In some embodiments, planar voice-coil loudspeaker further includes a baffle, and baffle is fixed with ring flange, centrally located magnetic
Iron interior encloses between magnet and outer ring magnet and planar voice-coil vibrating diaphragm.At least one opening, the position of opening are offered on baffle
Corresponding to perforation.
In some embodiments, planar voice-coil loudspeaker further includes lid.Lid is fixed on ring flange, and planar voice-coil shakes
Film is between lid and baffle.
In some embodiments, planar voice-coil loudspeaker further includes multiple sandwiched parts.Sandwiched part includes two pinches and block
Portion, two pinches are extended by the both sides of stop section.Two pinches are arranged in the first gap of central magnet both sides, respectively between first
In gap and the second gap or in the second gap and third space or in the first gap and third space.Here, third space
Between outer ring magnet and ring flange.
In the above-described embodiments, the central magnet of planar voice-coil loudspeaker, it is interior enclose magnet, outer ring magnet with specific magnetic to
It is arranged in array, magnetic force can be concentrated towards planar voice-coil, so that magnetic force is enhanced, so that the amplitude of planar voice-coil diaphragm oscillations
Increase.In addition, since planar voice-coil is that whole face is layed on planar voice-coil vibrating diaphragm, it is logical in the magnetic field of magnet array and current signal
When crossing the magnetic field reciprocation of planar voice-coil generation, planar voice-coil can drive planar voice-coil diaphragm oscillations by entire surface.In this way, plane
The stress and vibrational energy of voice coil vibrating diaphragm are more uniformly distributed, and loud speaker is enable to have more preferably table in high pitch frequency range and bass frequency range
It is existing.
Description of the drawings
The exemplary embodiment of the utility model is described in further detail by referring to accompanying drawing, the utility model above-mentioned and
Other exemplary embodiments, advantages and features will become clearer, wherein：
Fig. 1 is the exploded view of first embodiment planar voice-coil loudspeaker；
Fig. 2A is the partial cutaway schematic of first embodiment planar voice-coil loudspeaker；
Fig. 2 B are the partial cutaway schematics of second embodiment planar voice-coil loudspeaker；
Fig. 3 to Fig. 7 is respectively schematic top plan view of the 3rd embodiment to the magnet array of the 7th embodiment；
Fig. 8 is the schematic diagram of plane diaphragm voice coil first embodiment；
Fig. 9 is the schematic diagram of plane diaphragm voice coil second embodiment；
Figure 10 is the stereogram of pedestal；
Figure 11 is the local overlooking schematic diagram of planar voice-coil loudspeaker；
Figure 12 is the schematic top plan view of the magnet array of the 8th embodiment；And
Figure 13 is planar voice-coil loudspeaker figure compared with the frequency spectrum of moving-coil type voice coil.
Wherein reference numeral is：
1 planar voice-coil loudspeaker, 10 magnet array
11 central magnet, 111 axis
131 first sector electromagnet of magnet is enclosed in 13
132 second sector electromagnet, 133 sector electromagnet
134 trapezoidal magnet, 135 magnet
136 magnet, 137 magnet
138 magnet, 140 magnet spacing
145 sound regulating hole, 15 outer ring magnet
151 L-type magnet, 152 magnet
153 magnet, 161 first gap
163 second gap, 165 third space
20 planar voice-coil vibrating diaphragms
21 first surface, 23 second surface
25 intercommunicating pore, 30 planar voice-coil
35 back side voice coil, 40 circuit board
50 pedestal, 51 bottom plate
511 keep away the perforation of glue groove 513
515 venthole, 53 ring flange
55 storage tank, 551 first accommodating area
553 second accommodating area, 555 third accommodating area
57 first positioning column, 59 second positioning column
60 baffles 61 are open
70 lid, 80 sandwiched part
81 pinch, 811 convex block
83 stop section A1 axial magnetics to
A2 radial directions magnetic to the first magnetic of A21 to
The second magnetic of A23 to A3 opposite shaft orientations magnetic to
Specific implementation mode
Fig. 1 is the exploded view of first embodiment planar voice-coil loudspeaker.As shown in Figure 1, planar voice-coil loudspeaker 1 includes
Central magnet 11 interior encloses magnet 13, outer ring magnet 15 and planar voice-coil vibrating diaphragm 20 and pedestal 50.It is central magnet 11, interior
Enclose magnet 13, outer ring magnet 15 is arranged in same plane, magnet array 10 can be formed.Central magnet 11 has axis 111.It is interior
Enclose the outer periphery that magnet 13 is compassingly set at central magnet 11.Outer ring magnet 15 encloses the outer periphery of magnet 13 in being set to,
Planar voice-coil vibrating diaphragm 20 is adjacent to the same side of magnet array 10, and planar voice-coil vibrating diaphragm 20 is provided with planar voice-coil 30, surface sound
The position of circle 30 corresponds to the range of magnet array 10.Pedestal 50 includes bottom plate 51 and ring flange 53.Ring flange 53 is around setting
In the ring periphery of bottom plate 51 to form storage tank 55, it is equipped with central magnet 11 in storage tank 55, interior encloses magnet 13 and outer shroud magnetic
Iron 15, planar voice-coil vibrating diaphragm 20 are fixedly arranged on ring flange 53.Its periphery can be bonding on ring flange 53 by planar voice-coil vibrating diaphragm 20,
It can also be by fixing piece, for example, screw, the periphery of planar voice-coil vibrating diaphragm 20 is attached on ring flange 53.
It, can be with here, " enclosing " refers to surrounding as shown in Figure 1, interior magnet 13 and the outer ring magnet 15 of enclosing can be hollow and annular
Be it is enclosed surround, surrounding for polylith arranged type can also be covered.And " ring " represents enclosed surround.Although here, with
Annulus indicates, however it is not limited to this, any closed geometrical pattern can be referred to, for example, rectangle, hexagon etc..
It is second embodiment surface sound that Fig. 2A, which is the partial cutaway schematic of first embodiment planar voice-coil loudspeaker, Fig. 2 B,
Enclose the partial cutaway schematic of loud speaker.Shown in A and Fig. 2 B as shown in Figure 1, Figure 2, central magnet 11 has axial magnetic to A1, axial magnetic
It is parallel to axis 111 to A1.Inside enclosing magnet 13 has radial magnetic to A2, and radial magnetic is to A2 perpendicular to axis 111.Outer ring magnet 15
With opposite shaft orientation magnetic to A3, opposite shaft orientation magnetic to A3 be parallel to axis 111 and with axial magnetic to A1 be opposite direction.
This, magnetic is to the magnetic line of force direction for referring to S grades to N grades inside magnet.
In more detail, the radial magnetic for inside enclosing magnet 13 means it is axis 111 of the ecto-entad towards central magnet 11 to A2,
Or by central magnet 11 axis 111 towards radially outward.Further, as shown in Figure 2 A, radial magnetic to A2 refer to by extroversion
The interior axis 111 towards central magnet 11, from the point of view of section, radial magnetic to A2 include the first magnetic to A21 and the second magnetic to A23,
First magnetic is to A21 and the second magnetic to A23 all perpendicular to axis 111, and all ecto-entads are towards axis 111, but the first magnetic to
A21 and the second magnetic to A23 be opposite direction.Second embodiment shown in Fig. 2 B can be with Fig. 1 magnet shapes having the same
And arrangement, but the axial magnetic of Fig. 2 B to A1, the first magnetic to A21 and the second magnetic to A23 and opposite shaft orientation magnetic to A3 with figure
Embodiment shown in 2A is on the contrary, be the direction by axis 111 radially outward.But the either magnet array of Fig. 2A and Fig. 2 B,
It can make the magnetic force energy that magnet array 10 generates concentrate towards planar voice-coil 30 without dissipating, can make magnet array 10
Larger motive force can be generated when the magnetic field reciprocation that magnetic field is generated with current signal by planar voice-coil 30, and then is enhanced
The amplitude of planar voice-coil vibrating diaphragm 20.
Although in Fig. 1, Fig. 2A and Fig. 2 B, inside enclose magnet 13 be single annulus, can essentially by two magnet,
For example, the first sector electromagnet 131 and the second sector electromagnet 132 are welded or are binded.Alternatively, it is also possible to by magnetizing, by one
Block magnet divides into two pole regions.Further, the first sector electromagnet 131 and the second sector electromagnet 132 can be isogonisms point
Cloth be arranged or be symmetric setting, or combinations thereof.Further, central magnet 11, interior enclose magnet 13 and outer shroud magnetic
The geometric center of iron 15 can be identical, for example, the concyclic heart of three.
Fig. 3 to Fig. 7 is respectively schematic top plan view of the 3rd embodiment to the magnet array of the 7th embodiment.Such as Fig. 3 institutes
Show, the central magnet 11 of 3rd embodiment be it is round, interior enclose magnet 13 be made of four sector electromagnets 133, outer ring magnet
15 hollow circular rings formed for single magnet, four sector electromagnets 133 are distributed at isogonism.There is magnetic between two sector electromagnets 133
Iron spacing 140.As shown in figure 4, the central magnet 11 of fourth embodiment is rectangle, the interior magnet 13 that encloses is by four trapezoidal magnet
134 hollow, rectangulars formed and outer ring magnet 15 are the hollow, rectangular of two L-type magnet 151 composition.As shown in figure 5, the
The central magnet 11 of five embodiments be it is round, interior enclose magnet 13 by hollow hexagon that two magnet 135 are formed jointly and
Outer ring magnet 15 is the hollow ring that single magnet is formed.As shown in fig. 6, the central magnet 11 of sixth embodiment is hexagonal
Shape interior encloses magnet 13 by hollow hexagon that two magnet 136 are formed jointly and outer ring magnet 15 is two magnet 152
The hexagonal annular of formation.As shown in fig. 7, the central magnet 11 of the 7th embodiment is octagonal, the interior magnet 13 that encloses is by four magnetic
The illiciumverum annular that hollow octagonal that iron 137 is formed jointly and outer ring magnet 15, which are two magnet 153, to be formed.
However above example is only as illustrating, and it is without being limited thereto.Central magnet 11 interior encloses magnet 13 and outer shroud
The shape of magnet 15 is not limited to this, and is inside enclosed the quantity that magnet 13 and outer ring magnet 15 form and is also not limited to this.Only, in being transverse to
Any section of axis 111, central magnet 11, the interior magnetic for enclosing magnet 13 and outer ring magnet 15 are to should be as shown in Fig. 2A or Fig. 2 B.
The magnetic of magnet array 10 to arrangement can by magnetize, bind, welding or various other ways are completed.In turn, magnet number
Group 10 can essentially be Halbach magnet array (Halbach Array), so as to concentrate magnetic force towards planar voice-coil
30。
Fig. 8 is the schematic diagram of plane diaphragm voice coil first embodiment, and planar voice-coil vibrating diaphragm 20 includes opposite the first table
Face 21 and second surface 23 are provided with planar voice-coil 30 on first surface 21.Here, planar voice-coil 30 can be with pasting mode
The first surface 21 of planar voice-coil vibrating diaphragm 20 is attached to, the can also be directly printed in a manner of printing or lithography
One surface 21.In addition, planar voice-coil 30 can be spiral winding, for example, Archimedian helix voice coil, equiangular helical spiral sound
Circle, goat's horn helix voice coil, chain helix voice coil etc..Can also be multiple concentric circles.
Fig. 9 is the schematic diagram of plane diaphragm voice coil second embodiment.As shown in figure 9,23 being more provided with the back of the body on second surface
Face voice coil 35, and back side voice coil 35 is electrically connected planar voice-coil 30.Back side voice coil 35 can be in the periphery of planar voice-coil vibrating diaphragm 20
Connect planar voice-coil 30.Can also be to be connected with each other by the intercommunicating pore 25 of planar voice-coil vibrating diaphragm 20.The string of intercommunicating pore 25 wears the
Conducting resinl can be arranged in intercommunicating pore 25 in one surface 21 and second surface 23 so that back side voice coil 35 is electrical with planar voice-coil 30
Connection.As shown in figure 9, planar voice-coil vibrating diaphragm 20 is circular membrane, intercommunicating pore 25 is opened in the center of circle of circular membrane, and conductive
Back side voice coil 35 and planar voice-coil 30 are electrically connected by glue.In addition, the back side voice coil 35 and planar voice-coil 30 in Fig. 8 and Fig. 9 are equal
It can be flowed out by back side voice coil 35, also in this way, when current signal is passed through by planar voice-coil 30 for Archimedian spiral winding
It can be reversed.However, this is merely illustrative by Fig. 9, not limiting.Further, referring also to Fig. 1, Fig. 8 and Fig. 9, surface sound
Circle loud speaker 1 further includes circuit board 40, as shown in figure 9, circuit board 40 may be disposed at the periphery of planar voice-coil vibrating diaphragm 20, it is electric respectively
Property connection back side voice coil 35 and planar voice-coil vibrating diaphragm 20.
Either Fig. 8 or Fig. 9, planar voice-coil 30 and back side voice coil 35, position correspond to the same of magnet array 10
Side, and planar voice-coil 30 and back side voice coil 35 are attached in such a way that whole face is smooth on planar voice-coil vibrating diaphragm 20, when electric current is believed
Number by planar voice-coil 30, back side voice coil 35, or combinations thereof caused by magnetic field and magnet array 10 magnetic field reciprocation when,
Planar voice-coil 30 or back side voice coil 35 are to drive planar voice-coil vibrating diaphragm 20 to vibrate by entire surface, compared to conventional moving-coil type loud speaker
The problem of making flowing mode, capable of reducing diaphagras, vibration is more uniform and more sensitive, for listener, in high audio
Section and bass frequency range can have finer expression effect.
Figure 10 is the stereogram of pedestal.Figure 11 is the local overlooking schematic diagram of planar voice-coil loudspeaker.Referring also to Fig. 2A,
Fig. 2 B, Fig. 3, Figure 10 and Figure 11, here, Figure 10 is to enclose magnet 13 in tetra- sector electromagnets 133 of Fig. 3 for example, but its magnetic
The section of iron array 10 and pedestal 50 should as shown in fig. 2 a or 2b, but it is understood that, be only for example, and without being limited thereto.
As shown in Fig. 2A, Fig. 2 B, Figure 10, also glue groove 511 is kept away comprising multiple on bottom plate 51.Keeping away glue groove 511 is recessed by bottom plate 51.It keeps away
The position of glue groove 511 corresponds respectively to central magnet 11, interior encloses magnet 13 and outer ring magnet 15.Central magnet 11 interior encloses magnetic
Iron 13 and outer ring magnet 15 can avoid excessive residue glue on bottom plate 51, keeping away glue groove 511 by the mode gluing of gluing
It overflows.
Referring again to Fig. 1, Fig. 2A, Fig. 2 B, Figure 10 and Figure 11, central magnet 11 and interior enclose between magnet 13 have the
One gap 161, inside enclosing has the second gap 163 between magnet 13 and outer ring magnet 15, in addition, outer ring magnet 15 and pedestal 50
There can also be third space 165 between ring flange 53.Bottom plate 51 offers at least one perforation 513, and perforation 513 runs through bottom plate
51, and perforation 513 can be connected to the first gap 161, the second gap 163 or third space 165.In this way, planar voice-coil loudspeaker
1 back cavity, it is, planar voice-coil vibrating diaphragm 20 is between pedestal 50, in air can remain certain with turned on outside
Air pressure, avoid planar voice-coil vibrating diaphragm 20 vibrate caused by air-flow cause air pressure to increase, and hinder planar voice-coil vibrating diaphragm 20
Vibration.
Referring again to Fig. 1, Figure 10 and Figure 11, pedestal 50 also includes multiple first positioning columns 57 and multiple second positioning
Column 59.First positioning column 57 is extended with the second positioning column 59 by bottom plate 51.First positioning column 57 and the second positioning column 59 can incite somebody to action
Storage tank 55 divides into the first accommodating area 551, the second accommodating area 553 and third accommodating area 555.First accommodating area 551 is the
One positioning column 57 encloses the region set out, to accommodating central magnet 11.Second accommodating area 553 is the first positioning column 57 and second
Region between positioning column 59, to enclose magnet 13 in accommodating.Third accommodating area 555 be the second positioning column 59 and ring flange 53 it
Between region, to house outer ring magnet 15.In addition, the first positioning column 57 is located in the first gap 161, the second positioning column is located at
In second gap 163, and 513 are perforated between 2 first positioning columns 57 or between 2 second positioning columns 59.Further
Ground between the first positioning column 57 and the second positioning column 59, can also offer the venthole 515 through bottom plate 51, logical to adjust
Tolerance.Simultaneously refering to Fig. 3 and Figure 11, venthole 515 can be connected to the magnet spacing 140 between two sector electromagnets 133.
Figure 12 is the schematic top plan view of the magnet array of the 8th embodiment.As shown in figure 12, the central magnetic of the 8th embodiment
Iron 11 is that round, the interior magnet 13 that encloses is that two sector electromagnets 138 form, and can be opened on at least one of two sector electromagnets 138
If sound regulating hole 145.Sound regulating hole 145 encloses magnet 13 through interior.Referring concurrently to Figure 11, the position of sound regulating hole 145 corresponds to venthole
515.It is further possible in opening up sound regulating hole 145 on outer ring magnet 15, in addition, sound regulating hole 145 corresponds to the opposite of bottom plate 51
Position can also open up 513 (not shown) of perforation.
Referring again to FIGS. 1, planar voice-coil loudspeaker 1 further includes baffle 60, baffle 60 is fixed with ring flange 53,60, baffle
Between magnet array 10 and planar voice-coil vibrating diaphragm 20.Offered on baffle 60 at least one opening 61, be open 61 position correspond to
In perforation 513.Further, with reference to Figure 10 and Figure 11, opening 61 be also can correspond to venthole 515, sound regulating hole 145 or its
Combination.Baffle 60 is made by non-magnetic material, for example, copper, aluminium, tin etc..Baffle 60 mainly maintains magnet array 10
Position, when avoiding being hit or being vibrated, central magnet 11, it is interior enclose magnet 13 or outer ring magnet 15 falls off pop-up, and cause
The damage of planar voice-coil loudspeaker 1.
Referring again to Fig. 1, planar voice-coil loudspeaker 1 further includes lid 70.Lid 70 is fixed on ring flange 53 and pedestal
50 groups connect, and planar voice-coil vibrating diaphragm 20 is between lid 70 and baffle 60.Lid 70 can prevent planar voice-coil vibrating diaphragm 20, magnet
Array 10 is fallen off by external force.Lid 70 can more be designed comprising In-Ear sound guide tube (not shown).In other realities
Apply in example, the inner edge of lid 70 can connect with the periphery group of planar voice-coil vibrating diaphragm 20 in advance, lid 70 again with ring flange 53 groups connect,
The tension that planar voice-coil vibrating diaphragm 20 is pre-adjusted by lid 70, to reach acquiescence sound field frequency response.
Referring again to Fig. 1, Fig. 2A and Fig. 2 B, planar voice-coil loudspeaker 1 includes also sandwiched part 80, and sandwiched part 80 can position
Between baffle 60 and magnet array 10.Sandwiched part 80 includes two pinches 81 and stop section 83.Two pinches 81 are by stop section 83
Both sides extend downwardly out.Two pinches 81 of sandwiched part 80 can be arranged in respectively in the first gap 161 of 11 both sides of central magnet,
In first gap 161 and the second gap 163 second gap 163 and in third space 165 or the first gap 161 with
In third space 165.In this way, stop section 83 is centrally located on magnet 11, interior encloses on magnet 13 or outer ring magnet 15
On interior enclose on magnet 13 and outer ring magnet 15 or central magnet 11, interior enclose magnet 13 and outer ring magnet 15
On.Pinch 81 has elasticity, can in sandwich central magnet 11, interior enclose magnet 13 or outer ring magnet 15 or its group
It closes, and magnet array 10 is made more to fasten.Stop section 83 is located on magnet array 10, can to avoid central magnet 11, interior enclose
Magnet 13 or outer ring magnet 15 pop up.It these are only example, and it is without being limited thereto.The length of stop section 83 and two pinches 81 are inserted
If position can be allocated with product specification.
Further, in further embodiments, pinch 81 can more have convex block 811, convex block 811 to be located at pinch 81
One end, the direction to be parallel to stop section 83 are extended towards another pinch 81.Convex block 811, which can be located at, to be kept away on glue groove 511,
And it is connected to central magnet 11, the interior bottom surface for enclosing magnet 13 or outer ring magnet 15, so energy top surface, side and bottom surface are clamped
Mode fastens magnet array 10.Sandwiched part 80 can fasten central magnet 11, it is interior enclose magnet 13 or outer ring magnet 15, avoid plane
When voice-coil speaker 1 is hit or is shaken, central magnet 11, it is interior enclose magnet 13 or outer ring magnet 15 falls off pop-up, and then keep away
Exempt from the damage of planar voice-coil loudspeaker 1.
Figure 13 is planar voice-coil loudspeaker figure compared with the frequency spectrum of moving-coil type voice coil.As shown in figure 13, it is with same herein
The planar voice-coil loudspeaker of 40 Φ and amplitude-spectrum curve of moving-coil type voice coil are compared.Curve A is that planar voice-coil loudspeaker shakes
Width-spectrum curve, curve B are amplitude-spectrum curves of moving-coil type voice coil.Can obviously it understand, in high pitch frequency range and low
The amplitude of audio section, curve A is apparently higher than curve B, in other words, in high pitch frequency range and bass frequency range, planar voice-coil loudspeaker tool
There is preferable amplitude-frequency response.
In the above-described embodiments, the central magnet 11 of planar voice-coil loudspeaker 1, interior enclose magnet 13 and outer ring magnet 15
It is arranged to and in array with specific magnetic, magnetic force can be concentrated towards planar voice-coil 30, magnetic force can be made to enhance, to promote planar voice-coil
The amplitude of the vibration of vibrating diaphragm 20.In addition, planar voice-coil 30 is smooth on planar voice-coil vibrating diaphragm 20 with whole face, put down when electric current passes through
When the magnetic field reciprocation that the magnetic field that face voice coil 30 generates is generated with magnet array 10, planar voice-coil 30 can drive plane by entire surface
Voice coil vibrating diaphragm 20 vibrates.To which the stress of planar voice-coil vibrating diaphragm 20 and vibration are more uniformly distributed, and then planar voice-coil vibrating diaphragm 20 corresponds to
The vibration of current signal is more sensitive, so that loud speaker can have more preferably in the sound press or good fortune of shaking of high-frequency region and low frequency region
Performance.
Although having been combined the exemplary embodiment for being presently believed to be practical describes the utility model, should manage
Solution, the utility model is not limited to the disclosed embodiments, but on the contrary, it is intended to is included in suitable for various modifications and equivalent arrangements
In spirit and scope of the appended claims.
Claims (18)
1. a kind of planar voice-coil loudspeaker, which is characterized in that include：
One central magnet has an axis and an axial magnetic to, the axial magnetic to being parallel to the axis；
Magnet is enclosed in one, is compassingly set at the outer periphery of the central magnet, which has a radial magnetic to the radial direction magnetic
To perpendicular to the axis；
One outer ring magnet, around the interior outer periphery for enclosing magnet is set to, which has an opposite shaft orientation magnetic to the phase
Anti- axial magnetic is to being parallel to the axis and with the axial magnetic to for opposite direction；
One planar voice-coil vibrating diaphragm is adjacent to the central magnet, the interior the same side for enclosing magnet and the outer ring magnet, the planar voice-coil
Vibrating diaphragm is provided with a planar voice-coil, the position of the planar voice-coil correspond to the central magnet, this interior enclose magnet and the outer ring magnet；
And
One pedestal, including a bottom plate and a ring flange, it is accommodating which forms one around the ring periphery of the bottom plate is set to
Slot, be equipped in the storage tank central magnet, this it is interior enclose magnet and the outer ring magnet, which is fixedly arranged on the ring
On flange.
2. planar voice-coil loudspeaker as described in claim 1, which is characterized in that the interior magnet that encloses is a hollow and annular.
3. planar voice-coil loudspeaker as claimed in claim 2, which is characterized in that the interior magnet that encloses includes two sector electromagnet groups
At the hollow and annular, and two sector electromagnet be respectively provided with one first magnetic to and one second magnetic to, first magnetic to this second
Magnetic is to all perpendicular to the axis.
4. planar voice-coil loudspeaker as claimed in claim 3, which is characterized in that two sector electromagnet is in that isogonism distribution is set each other
Set or be symmetric setting, or combinations thereof.
5. planar voice-coil loudspeaker as described in claim 1, which is characterized in that the outer ring magnet is a hollow and annular.
6. planar voice-coil loudspeaker as described in claim 1, which is characterized in that the planar voice-coil vibrating diaphragm includes opposite one
First surface and a second surface are provided with the planar voice-coil on the first surface.
7. planar voice-coil loudspeaker as claimed in claim 6, which is characterized in that the planar voice-coil is a helix voice coil.
8. planar voice-coil loudspeaker as claimed in claim 6, which is characterized in that be more provided with a back side sound on the second surface
Circle, and the back side voice coil is electrically connected the planar voice-coil.
9. planar voice-coil loudspeaker as claimed in claim 8, which is characterized in that the planar voice-coil vibrating diaphragm offers a connection
Hole, the planar voice-coil are electrically connected to each other with the back side voice coil by the intercommunicating pore.
10. planar voice-coil loudspeaker as claimed in claim 9, which is characterized in that the planar voice-coil vibrating diaphragm is a circular membrane,
The intercommunicating pore is opened in the center of circle of the circular membrane.
11. planar voice-coil loudspeaker as described in claim 1, which is characterized in that the pedestal further include it is multiple keep away glue groove, it is described
Multiple glue grooves of keeping away are recessed by the bottom plate, and the multiple position for keeping away glue groove correspond respectively to the central magnet, this it is interior enclose magnet,
And the outer ring magnet.
12. planar voice-coil loudspeaker as described in claim 1, which is characterized in that the central magnet and this interior enclose between magnet
With one first gap, which there is one second gap, the bottom plate to offer at least one and wear between magnet and the outer ring magnet
Hole, which runs through the bottom plate, and is connected to first gap or second gap.
13. planar voice-coil loudspeaker as claimed in claim 12, which is characterized in that the pedestal further includes multiple first positioning
Column, multiple second positioning columns, the multiple first positioning column is extended with the multiple second positioning column by the bottom plate, described more
A first positioning column is located in first gap, and the multiple second positioning column is located in second gap, and the perforation is located at
Between the multiple first positioning column or between the multiple second positioning column.
14. planar voice-coil loudspeaker as claimed in claim 13, which is characterized in that the pedestal further includes an at least venthole,
The venthole runs through the bottom plate, and between the multiple first positioning column and the multiple second positioning column.
15. planar voice-coil loudspeaker as claimed in claim 14, which is characterized in that the interior magnet that encloses more opens up an at least tuning
Hole, the sound regulating hole through this it is interior enclose magnet, and the position of the sound regulating hole corresponds to the venthole.
16. planar voice-coil loudspeaker as claimed in claim 12, which is characterized in that further include a baffle, the baffle and the ring
Flange is fixed, positioned at the central magnet, this it is interior enclose between magnet and the outer ring magnet and the planar voice-coil vibrating diaphragm, the baffle
On offer at least one opening, the position of the opening corresponds to the perforation.
17. planar voice-coil loudspeaker as claimed in claim 16, which is characterized in that further include a lid, which is fixed on
On the ring flange, which is located between the lid and the baffle.
18. planar voice-coil loudspeaker as claimed in claim 12, which is characterized in that further include multiple sandwiched parts, the sandwiched part
Including two pinches and a stop section, which is extended by the both sides of the stop section, which is arranged in the center respectively
In first gap of magnet both sides, in first gap and second gap or second gap and a third space or
In person first gap and the third space, the stop section be located at the central magnet, this interior enclose magnet or the outer ring magnet extremely
In a few part, wherein the third space is located between the outer ring magnet and the ring flange of the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353628.3U CN207978118U (en) | 2018-03-15 | 2018-03-15 | Planar voice-coil loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353628.3U CN207978118U (en) | 2018-03-15 | 2018-03-15 | Planar voice-coil loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207978118U true CN207978118U (en) | 2018-10-16 |
Family
ID=63764297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820353628.3U Expired - Fee Related CN207978118U (en) | 2018-03-15 | 2018-03-15 | Planar voice-coil loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207978118U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660926A (en) * | 2019-02-28 | 2019-04-19 | 汉得利（常州）电子股份有限公司 | A kind of ultra thin handset loudspeaker made of printing voice coil |
| CN109874098A (en) * | 2019-01-30 | 2019-06-11 | 汉得利（常州）电子股份有限公司 | A kind of ultra thin handset loudspeaker made of printed coil |
| CN111246335A (en) * | 2020-02-10 | 2020-06-05 | 佛山市南海昶音电子有限公司 | Earphone with double-layer continuous voice coil wire |
-
2018
- 2018-03-15 CN CN201820353628.3U patent/CN207978118U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874098A (en) * | 2019-01-30 | 2019-06-11 | 汉得利（常州）电子股份有限公司 | A kind of ultra thin handset loudspeaker made of printed coil |
| CN109660926A (en) * | 2019-02-28 | 2019-04-19 | 汉得利（常州）电子股份有限公司 | A kind of ultra thin handset loudspeaker made of printing voice coil |
| CN111246335A (en) * | 2020-02-10 | 2020-06-05 | 佛山市南海昶音电子有限公司 | Earphone with double-layer continuous voice coil wire |
| CN111246335B (en) * | 2020-02-10 | 2021-07-02 | 佛山市南海昶音电子有限公司 | Earphone with double-layer continuous voice coil wire |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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