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JP2016529829

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DESCRIPTION JP2016529829
Abstract: The present invention relates to a sensory signal output device, and more specifically, a
sensory signal output including a bone conduction output device in which a coil unit and a case
housing the magnetic circuit unit itself support a vibrating structure formed by the coil and the
magnetic circuit unit. Device (including bone conduction output device). According to the present
invention, in the state where the magnetic circuit unit 110 and the coil unit 120 are
accommodated at positions corresponding to each other in the case 101, sound or vibration is
generated while the magnetic circuit unit 110 vibrates according to the direction of the AC signal
applied to the coil unit 120. In the sensory signal output device 100 for generating the magnetic
circuit portion 110, the case 101 supports the magnetic circuit portion 110 and the coil portion
120 in a resilient state with respect to each other, and the magnetic circuit portion 110 and the
coil portion 120 repel each other. It is a sensory signal output device characterized in that it
operates or vibrates while repulsion / suction operation while the other is fixed. [Selected figure]
Figure 3
Sensory signal output device
[0001]
The present invention relates to a sensory signal output device, and more particularly, a sensory
signal output device including a bone conduction output device in which a coil unit and a case
housing the magnetic circuit unit itself support a vibrating structure formed by the coil and the
magnetic circuit unit. (Including bone conduction output device).
[0002]
In general, a sensory signal output device converts an electrical signal input from a signal source
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into a mechanical signal to output sound, or generates a vibration, such as a speaker, receiver,
buzzer, vibration motor (vibrator) or the like. Devices that output various acoustic or vibrational
forces, including bone conduction output devices.
[0003]
Such sensory signal output devices are widely applied in various fields depending on their size
and application.
In particular, small sensory signal output devices widely used for vibration calling of
communication terminals according to the growth of the information communication industry, in
particular, small vibration motors have become popular as existing touch screen phones
including smartphones have become popular. Adoption of linear motion vibration motor which
exceeds the function of motor is rapidly increasing (conventional vibration motor is dominated
by the type in which the vibration body rotates while vibrating).
[0004]
The reason why the application of the linear motion vibration motor has been expanded to
portable IT devices such as touch phones including smartphones and general mobile phones is
that the response speed is faster and the noise is smaller compared to rotary vibration motors.
This is because the life has also been significantly improved.
[0005]
The above response speed means the time taken to reach 50% of the oscillating force at
maximum displacement, which is the biggest reason for adopting a linear motion oscillating
motor.
[0006]
Recently, touch screen phones have evolved into smartphones to download and use various
applications, but such applications have various functions, and feedback vibration matching such
functions is required. In order to satisfy the above, there is a need in the art for a vibration motor
having a faster response speed, ie, a faster reaction speed than conventional linear motion
vibration motors.
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[0007]
Linear motion vibration motors are distinguished from vibration motors using brushes and
commutators, and the driving principle of linear motion vibration motors is to Fleming's left-hand
rule that the conductor placed in the magnetic field is subject to force in a certain direction It is
based.
That is, when an AC alternating signal is applied to a fixed coil, the coil moves a magnet, which is
a vibrator, according to the direction, strength and frequency of the current to generate
vibrational energy.
[0008]
Conventionally, as shown in FIG. 1 of the accompanying drawings, a linear motion vibration
motor is formed on the top surface of the yoke 3 and the top surface of the yoke 3 by welding,
adhesion or fitting and fixing sequentially. Alternatively, the coils 6 may be spaced in the inner
circumferential direction (gaps), and the magnet 4 and the top plate 5 may be responsive to the
magnetic flux formed in the gaps by the direction of the AC signal applied to the coils 6
Generates an oscillating force while the magnetic circuit including the yoke and / or the weight
also vibrates.
[0009]
At this time, the magnet 3 and the top plate 4 are divided into magnetic circuits, and the coil 6 is
divided into vibration inducing parts.
[0010]
A sensory signal output device having such a structure is usually housed in a box-shaped case 1
and a lid 2, and the yoke 6 in which the magnet 4 and the top plate 5 are seated and fixed, ie, a
magnetic circuit is a separate plate While being supported, the spring 7 is fixed to the case 1 (for
example, fixed to the rivet 8, welded fixed, or injection fixed to the case).
[0011]
However, in the conventional sensory signal output apparatus as described above, since the plate
spring 7 for supporting the magnetic circuit is provided in the case 1, it is necessary to secure
the flow space or the space of the plate spring 7 in the case 1. However, the volume (size) of the
sensory signal output device increases.
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[0012]
In addition, the conventional sensory signal output device requires work for fixing the plate
spring 7 to the rivet 8 with respect to the case 1, welding and fixing it to the case, or
manufacturability such as troublesome and difficult to manufacture. There is an inferior problem.
[0013]
Also, in the conventional sensory signal output device, the vibration generated by the vibration
structure formed by the coil 6 and the magnetic circuit is transmitted to the case 1 through the
plate spring 7, so the vibration generated by the vibration structure acts as a vibrational force.
There is a problem that the output efficiency is low because the output is reduced, for example,
in the process of being transmitted to a smartphone, MP3 or notebook.
[0014]
Such problems are further deepened particularly in a portion requiring a delicate vibration force
such as a bone conduction output device.
[0015]
The documents introducing the prior art of such a conventional sensory signal output device are
as follows, and the prior art disclosed in such a document also has the above-mentioned
problems.
[0016]
Korean Patent Publication No. 10-2005-0106482 (Application No .: 10-2005-701639
(2005.09.02); Bone Conduction Device) Korean Patent Publication No. 10-2005-0021102
(Application No .: 10-) 2003-0059198 (2003.08.26); diaphragm for micro speaker and micro
speaker using the same)
[0017]
The present invention has been made to solve the problems of the prior art as described above,
and the case for housing the coil portion and the magnetic circuit portion itself supports the
vibration structure formed by the coil and the magnetic circuit portion. The purpose of the
present invention is to provide a sensory signal output device.
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[0018]
According to the present invention, the magnetic circuit 110 and the coil 120 are accommodated
at positions corresponding to each other in the case 101, and the magnetic circuit is applied
according to the direction of the AC signal applied to the coil 120. In the sensory signal output
device 100 for generating sound or vibration while the portion 110 vibrates, the case 101
supports the magnetic circuit portion 110 and the coil portion 120 in a state of elasticity with
respect to each other, And the coil unit 120 perform mutual repulsive suction operation, or when
one is fixed, the other vibrates while performing repulsive suction operation.
[0019]
The present invention according to the above-described means for solving the problem is that the
case 101 accommodates the magnetic circuit unit 110 and the coil unit 120 and supports each
of them resiliently against each other. While the structure can be supported, the whole
components or structure of the sensory signal output device 100 can be simplified, while the
flow space of the plate spring need not be secured in the case, so only the relevant space can be
used. On the other hand, the effect of reducing the volume (size) of the sensory signal output
device 100 can be obtained.
[0020]
Further, since the present invention does not require a plate spring, the effect of improving the
productivity can be obtained by omitting the work of fixing the plate spring to the case.
[0021]
Further, according to the present invention, the vibration generated by the vibration structure
formed by the magnetic circuit unit 110 and the coil unit 120 does not pass through the plate
spring and tries to output the vibration force through the case 101 in an extreme manner. By
being directly transmitted to a notebook or the like, it is possible to prevent vibration from being
reduced and to obtain an effect of increasing the output efficiency.
[0022]
It is sectional drawing which shows the structure of the conventional sensory signal output
device.
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It is a perspective view showing composition concerning one embodiment (embodiment 1) of the
present invention.
It is an exploded perspective view which shows the composition concerning one embodiment
(embodiment 1) of the present invention more concretely.
It is a sectional view showing other composition concerning one embodiment (embodiment 1) of
the present invention.
It is sectional drawing which shows the detailed structure which concerns on one Embodiment
(Embodiment 1) of this invention.
It is sectional drawing which shows the further another structure which concerns on one
Embodiment (Embodiment 1) of this invention.
It is sectional drawing which shows the operation state of one Embodiment (Embodiment 1) of
this invention.
It is sectional drawing which shows the structure which concerns on other embodiment
(Embodiment 2) of this invention.
It is sectional drawing which shows the structure which concerns on further another embodiment
(Embodiment 3) of this invention.
It is an exploded perspective view showing the composition concerning further another
embodiment (embodiment 4) of the present invention.
It is sectional drawing which shows the structure which concerns on further another embodiment
(Embodiment 5) of this invention.
It is sectional drawing which shows the operation state which concerns on further another
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embodiment (Embodiment 5) of this invention.
It is an exploded perspective view showing the composition concerning further another
embodiment (embodiment 6) of the present invention.
[0023]
The present invention will be described below with reference to the accompanying drawings
presented as such.
First, to describe the configuration according to one embodiment (first embodiment) of the
present invention, as shown in FIGS. 2 to 6 of the accompanying drawings, the positions where
the magnetic circuit unit 110 and the coil unit 120 correspond to each other in the case 101. In
the sensory signal output device 100 for generating sound or vibration while vibrating the
magnetic circuit unit 110 according to the direction of the alternating current signal applied to
the coil unit 120 in the state housed in the case 101, the case 101 includes the magnetic circuit
unit 110 and the coil unit The magnetic circuit unit 110 and the coil unit 120 perform mutual
repulsion attraction operation while supporting with mutual elasticity with respect to 120 or
while one is fixed while the other is repulsion attraction operation. It may be vibrating.
[0024]
Here, according to the present invention, as shown in FIGS. 2 to 5 of the attached drawings, the
magnetic circuit unit 110 is a magnet 111 for generating a magnetic force, and is stacked on the
upper surface of the magnet 111 to concentrate the magnetic force of the magnet. Top plate
112; another magnet 111 'having concentric circles with the magnet 111 and the top plate 112
and spaced apart from the outer shell and a top plate 112'; a surface on which the magnet
positioned with the concentric circle is mounted And a yoke 113 for providing a path through
which magnetic field lines pass.
[0025]
Further, as shown in FIG. 6 of the accompanying drawings, the magnetic circuit unit 110 includes
a magnet 111 for generating a magnetic force; a top plate 112 stacked on the upper surface of
the magnet 111 to concentrate the magnetic force of the magnet; The height surface is provided
to provide a surface to be fixed in a fixed position and provide a path through which magnetic
lines of force pass while providing an air gap in which a magnetic flux is formed in the outer
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peripheral surface direction or the inner peripheral surface direction of the magnet 111 and the
top plate 112. Can be configured to include a yoke 113 '.
[0026]
Meanwhile, according to the present invention, the coil unit 120 may include a voice coil 121
that vibrates according to Fleming's left-hand rule if an AC signal is input from the outside in a
state of being positioned in a gap of the magnetic circuit unit 110. .
[0027]
In addition, the coil unit 120 may further include a plate 122 to which the voice coil 121 is fixed
at the center of one side.
[0028]
On the other hand, in the present invention, the case 101 may be an elastic plate in the vertical
direction made of a metal material or a synthetic resin material coupled to the edge portion of
the facing surface of the magnetic circuit portion 110 and the coil portion 120.
[0029]
At this time, the case 101 may be a plate-shaped plate spring array (see FIG. 3) or a magnetic
circuit unit 110 coupled to the edge portions of opposing surfaces of the magnetic circuit unit
110 and the coil unit 120 at intervals. A plate spring (see FIG. 4) in which a holed portion and an
elastic portion are arranged at an interval to a rim (Rim) coupled to an edge portion of opposing
surfaces of the coil and the coil portion 120, or a magnetic circuit portion 110 and a coil It may
be of a leaf spring (a normal rim without a drilled hole) formed of an elastic rim coupled to an
edge portion of the opposite surface to the portion 120.
[0030]
In the above, although the number of arranged plate spring arrangements is exemplified as 3 to
6 as an embodiment, the arrangement is not limited to this, and the arrangement is increased
according to the degree of the magnetic force and the use of the sensory signal output device.
There is.
[0031]
Also, the surface of the plate spring may be a crumple zone for providing a tension force, or an
outward or inward curved surface.
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[0032]
In the above, the surface of the magnetic circuit unit 110 facing the coil unit 120 is one side of
the yoke 113 on which the magnet 111 is seated and fixed, and the surface of the coil unit 120
facing the magnetic circuit unit 110 is the voice coil 121. It may be one side of the plate 122 to
be fixed.
[0033]
In addition, the case 101 may be fitted and coupled to a groove formed on the facing surface of
the magnetic circuit unit 110 and the coil unit 120, or may be fixed by welding or bonding after
being fitted. .
[0034]
At this time, the surface of the magnetic circuit unit 110 facing the coil unit 120 is the surface on
which the magnet 111 of the yoke 113 is seated and fixed, and the surface of the coil unit 120
facing the magnetic circuit unit 110 is the voice coil 121 fixed. It is possible to
[0035]
The operation of the present invention configured as described above is as follows.
[0036]
First, the operation of the configuration according to one embodiment (Embodiment 1) of the
present invention will be described. The magnetic circuit unit 110 and the coil unit 120 are
applied to the coil unit 120 in the state where they are accommodated at mutually corresponding
positions. In the sense signal output device 100 for generating sound or vibration while vibrating
the magnetic circuit unit 110 according to the direction of the alternating current signal, the case
101 has elasticity with respect to the magnetic circuit unit 110 and the coil unit 120. The
magnetic circuit unit 110 and the coil unit 120 are supported by each other, or the sensory
signal output device 100 vibrates while the other is repulsively suctioned while one of them is
fixed.
[0037]
Here, the magnetic circuit unit 110 includes a magnet 111 for generating a magnetic force; a top
plate 112 stacked on an upper surface of the magnet 111 to concentrate the magnetic force of
the magnet; and a concentric circle with the magnet 111 and the top plate 112 Outer magnet
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111 'and top plate 112', spaced apart in the outer shell; yoke 113 providing a surface on which
the magnet located with the concentric circle is seated and providing a path for magnetic flux to
pass through; It consists of
[0038]
Meanwhile, in the present invention, the coil unit 120 includes a voice coil 121 that vibrates
according to Fleming's left-hand rule when an AC signal is input from the outside in a state of
being positioned in a gap of the magnetic circuit unit 110. The coil unit 120 further includes a
plate 122 to which a voice coil 121 is fixed at one side center.
[0039]
According to the present invention, the voice coil 121 is positioned in the space between the pair
of magnets 111, 111 'and the top plates 112, 112' seated on the yoke 113, in which case the
voice coil 121 A magnetic circuit comprising a yoke 113, magnets 111 and 111 'and a top plate
112 and 112' as shown in FIG. 7 of the accompanying drawings in response to the magnetic flux
formed in the air gap according to the direction of the AC signal applied to the coil 121. The coil
portion 120 including the portion 110 and the voice coil 121 generates a vibration force while
vibrating.
[0040]
At this time, when one of the magnetic circuit unit 110 and the coil unit 120 is fixed, the nonfixed opposite side portion vibrates and outputs vibration force or / and sound.
[0041]
The vibration as described above can be achieved by resiliently supporting the magnetic circuit
unit 110 and the coil unit 120 while being coupled in a spaced state by the case 101 having
elasticity.
That is, the above-mentioned vibration is made possible by the resilient support force of the case
101 located vertically between the magnetic circuit unit 110 and the coil unit 120.
[0042]
According to the present invention as described above, since the case 101 accommodates the
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magnetic circuit unit 110 and the coil unit 120 and supports each of them in a resilient manner
with respect to each other, the vibration structure is supported without a separate plate spring.
While this simplifies the overall components or structure of the sensory signal output device
100, it does not require securing of the flow space of the plate spring in the case. The volume
(size) of 100 can be reduced.
[0043]
Further, since the present invention does not require a plate spring, the process of fixing the
plate spring to the case can be omitted to improve the manufacturability.
[0044]
Further, according to the present invention, the vibration generated by the vibration structure
formed by the magnetic circuit unit 110 and the coil unit 120 does not pass through the plate
spring and tries to output the vibration force through the case 101 in an extreme manner. By
being directly transmitted to a notebook or the like, the vibration can be prevented from being
reduced, and the output efficiency can be increased.
[0045]
The other embodiment of the present invention as described above is as follows.
[0046]
First, referring to the second embodiment of the present invention, as shown in FIG. 8 of the
accompanying drawings, the case 101 is coupled to the edge portion of the facing surfaces of the
magnetic circuit unit 110 and the coil unit 120 at a distance. A plate spring bent so that a central
portion of the plate projects inward, or a central portion of a rim (Rim) coupled to an edge
portion of the opposing surface of the magnetic circuit portion 110 and the coil portion 120 And
a rim-shaped plate spring whose perforations and elastic portions are arranged at intervals on
the surface, or is connected to an edge portion of opposing surfaces of the magnetic circuit
portion 110 and the coil portion 120. It may be a rim-shaped leaf spring (a complete rim type
without a drilled hole portion) which is bent so that a central portion of the rim (Rim) protrudes
inward.
[0047]
<img class = "EMIRef" id = "390567955-00003" />
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[0048]
Next, referring to the third embodiment of the present invention, as shown in FIG. 9 of the
accompanying drawings, the case 101 is coupled to the edge portion of the opposing surface of
the magnetic circuit portion 110 and the coil portion 120 at a distance. A plate spring bent so
that a central portion of the plate projects outward, or a central portion of a rim (Rim) coupled to
an edge portion of the opposing surface of the magnetic circuit portion 110 and the coil portion
120 A rim-shaped plate spring which is bent so as to project in a direction, and a holed portion
and an elastic portion are arranged at intervals on the surface, or is connected to the edge
portion of the opposing surface of the magnetic circuit portion 110 and the coil portion 120 It
may be a rim-shaped plate spring (a complete rim type without a drilled hole portion) which is
bent so that the central portion of the rim to be projected (Rim) protrudes outward.
[0049]
<img class = "EMIRef" id = "390567955-00004" />
[0050]
In this case, as shown by the direction of the AC signal applied to the voice coil 121 located in
the air gap between the pair of magnets 111 and 111 'seated on the yoke 113 and the top plate
112 and 112'. In the magnetic circuit unit 110 including the yoke 113, the magnets 111 and
111 ', and the top plates 112 and 112', and the coil unit 120 including the voice coil 121,
vibrational force is generated while vibrating. Such vibration is made possible by the resilient
support force of the case 101 located vertically between the magnetic circuit unit 110 and the
coil unit 120.
[0051]
Next, referring to the fourth embodiment of the present invention, as shown in FIG. 10 of the
accompanying drawings, one end of the case 101 is coupled to the surface of the magnetic
circuit unit 110 facing the coil unit 120, and the other end is a magnetic circuit. An array of
hatched plate springs made of a metal material or a synthetic resin material extending diagonally
along the outer edge of the portion 110 and the coil portion 120 and coupled to the surface of
the coil portion 120 facing the magnetic circuit portion 110. It can be.
[0052]
In the above, the number of hatched plate springs arranged is exemplified as 3 to 6 as an
embodiment, but the arrangement may increase depending on the degree of the magnetic force
and the use of the sensory signal output device.
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[0053]
In this case, the process of vibrating the magnetic circuit unit 110 including the yoke 113, the
magnets 111 and 111 ', and the top plates 112 and 112' and the coil unit 120 including the
voice coil 121 according to the principle as described above. Thus, the case 101 is arranged in a
diagonal line and vibrates up and down while turning left and right within a certain range.
[0054]
Next, referring to the fifth embodiment of the present invention, as shown in FIG. 11 of the
accompanying drawings, the case 101 is coupled to the edge portion of the opposing surface of
the magnetic circuit portion 110 and the coil portion 120 at a distance. Array of coil springs.
[0055]
Although the number of coil springs arranged as described above is exemplified as 3 to 6 as an
embodiment, the arrangement may increase depending on the degree of the magnetic force and
the use of the sensory signal output device.
[0056]
In this case, as shown in FIG. 12 of the accompanying drawings, the portion to which the
magnetic circuit portion 110 is fixed and the portion to which the coil portion 120 is fixed do not
maintain horizontality and deviate from the horizontal line at a predetermined angle. In this case,
the coil spring is flexibly fixed correspondingly.
[0057]
At this time, the number of turns or elasticity of the coil spring located in the narrow part of the
gap between the magnetic circuit part 110 and the coil part 120 is the number of turns or
elasticity of the coil spring located in the wide part. It can also be lower and lower.
[0058]
In this way, the portion to which the magnetic circuit unit 110 is fixed and the portion to which
the coil unit 120 is fixed do not maintain horizontality, and vibration is caused by the degree of
being off the horizontal line at a predetermined angle, that is, the degree of inclination. In the
process, it is possible to eliminate the imbalance of the repulsive force between the narrow side
and the wide side of the space, thereby preventing vibration distortion.
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[0059]
Finally, referring to the sixth embodiment of the present invention, as shown in FIG. 13 of the
accompanying drawings, in the coil unit 120, the voice coil 121 is fixed at the center of one side
and the sound is output by the vibration of the voice coil 121. It can also be configured to further
include a diaphragm 123 (diaphragm).
[0060]
In the above, a rim type support member 124 may be provided on an outer peripheral edge of
the diaphragm 123 to which the voice coil 121 is fixed, to provide a portion coupled to the case
101. A lid 125 for protecting the diaphragm may be coupled to the inner circumferential surface
of the one side opening.
[0061]
In this case, the vibration force due to the vibration of the magnetic circuit unit 110 and the coil
unit 120 and the sound due to the vibration of the diaphragm 123 can be simultaneously output.
[0062]
Although the present invention has been described and illustrated in connection with the
preferred embodiments for illustrating the principles of the present invention, the present
invention is not limited to the exact construction and operation so illustrated and described. .
[0063]
For example, the sensory signal output device 100 having a structure according to the present
invention is capable of bone conduction output, and the above-mentioned bone conduction
means that vibration does not pass through air and is directly transmitted from bone to inner ear
It refers to what happens when the vibrator is on the head of the head or in the skull.
When used for the bone conduction output device as described above, it is also applicable to
earphones (including headphones and back earphones), and can also be used for acoustic or
vibration output devices of smartphones, and applied to sunglasses or glasses temples It is also
possible, as can be appreciated from the name of the present invention, not necessarily limited to
bone conduction output devices, but also applicable to other vibration or / and sound output
devices.
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[0064]
It will be understood by those skilled in the art that numerous other changes and modifications
can be made to the present invention without departing from the spirit and scope of the
appended claims.
[0065]
Therefore, all such appropriate changes and modifications and equivalents should be considered
as falling within the scope of the present invention.
[0066]
100 sense signal output device 101 case 110 magnetic circuit unit 111, 111 'magnet 112, 112'
top plate 113, 113 'yoke 120 coil unit 121 voice coil 122 plate 123 diaphragm 124 support
member 125 lid
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