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JP2012085257

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2012085257
An earphone having two speaker units is provided. The earphone includes a housing, a bracket, a
first speaker unit, and a second speaker unit. The bracket is disposed within the housing and
includes a front plate, a first tubular portion, a second tubular portion, and at least one
connection. The first tubular portion is connected to the front plate. The second cylindrical
portion is separated from the first cylindrical portion. The first cylindrical portion is disposed
between the front plate and the second cylindrical portion. The connection portion connects the
first cylindrical portion and the second cylindrical portion. The front plate has a central opening
and a peripheral opening. The second accommodation space communicates with the main audio
output path via the peripheral opening. The first speaker unit is disposed in the first
accommodation space of the first cylindrical portion. The second speaker unit is disposed in the
second accommodation space of the second cylindrical portion. [Selected figure] Figure 3
イヤホン
[0001]
The present invention relates to an earphone, and more particularly to an earphone having two
speaker units.
[0002]
With the rapid advances in science and technology, as all the electrical products have developed
towards lightness and miniaturization, people can now use small electronic products such as
radios and walkmans anytime and anywhere.
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1
In addition, personal digital products such as MP3 Walkman, mobile phones, PDAs (personal
digital assistants) and laptops are becoming increasingly popular, becoming indispensable for
everyday life, and mobile phones incorporating both radio and MP3 functions. It is also out.
[0003]
With respect to these electric products, earphones have become a necessity as an accessory of
electric products so that voice information provided by the electric products can be heard
without causing trouble to others. Also, as the earphones provide better audio transmission, the
listener can hear the audio information clearly and understand the content. Compared to
indistinct audio transmission through the air, especially when the listener is in motion, for
example in motion or driving, when it is vigorously moving around, or in a noisy environment,
Voice transmission is not affected.
[0004]
Conventional earphones usually use a single speaker unit. However, since the output audio
frequency of the speaker unit has a specific range, uniform performance can not be achieved at
all frequencies.
[0005]
Therefore, an object of the present invention is to provide an earphone capable of solving the
problem that the output audio frequency of a single speaker unit is narrow.
[0006]
The earphone of the present invention includes a housing, a bracket, a first speaker unit, and a
second speaker unit.
The rods include precursors and rods. The front housing is assembled to the rear housing. The
precursor has a main audio-output path. The bracket is placed in the housing. The bracket
02-05-2019
2
includes a front plate, a first cylindrical portion, a second cylindrical portion, and at least one
connection portion. The first tubular portion is connected to the front plate and has a first
accommodation space. The second cylindrical portion is separated from the first cylindrical
portion and has a second accommodation space. The first cylindrical portion is disposed between
the front plate and the second cylindrical portion. The connection portion connects the first
cylindrical portion and the second cylindrical portion. The front plate has a central opening and a
plurality of peripheral openings around the central opening. The first accommodation space is
connected to the main audio output path through the central opening. The second
accommodation space communicates with the main audio output path via the peripheral
opening. The first speaker unit is disposed in the first accommodation space. The second speaker
unit is disposed in the second accommodation space.
[0007]
In one embodiment of the present invention, the inner wall of the second tubular part has a wire
trench.
[0008]
In one embodiment of the present invention, the housing has a wire hole.
[0009]
In one embodiment of the invention, the earphone further comprises a plurality of electrical
leads.
The first speaker unit has two first input ends and two first output ends.
Each first input end is electrically connected to one of the first output ends. The second speaker
unit has two second input ends, two second output ends, and two connection ends. Each second
input end is electrically connected to one of the second output ends and to one of the connection
ends. Each second input end is electrically connected to an external source via one of the leads.
Each second output end is electrically connected to the second coil of the second speaker unit via
one of the leads. Each connection end is electrically connected to one of the first input ends via
one of the leads. Each first output end is electrically connected to the first coil of the first speaker
unit via one of the leads.
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[0010]
In one embodiment of the present invention, the output audio frequency of the first speaker unit
is higher than the output audio frequency of the second speaker unit.
[0011]
As described above, the earphone of the present invention can achieve uniform frequency
response at all frequencies because the overall output audio range generated by the two speaker
units is relatively wide.
[0012]
In order to make the aforementioned and other objects, features and advantages of the present
invention more comprehensible, several embodiments accompanied with figures are described
below.
[0013]
FIG. 1 is an exploded view of an earphone according to one embodiment of the present invention.
FIG. 7 is another exploded view of an earphone according to one embodiment of the present
invention.
It is a fragmentary sectional view of the earphone of FIG.
[0014]
1 and 2 are exploded views of two viewing angles of an earphone according to an embodiment of
the present invention.
Referring to FIGS. 1 and 2, the earphone 100 according to the present embodiment includes a
housing 110, a bracket 120, a first speaker unit 130, and a second speaker unit 140. The bracket
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120 is disposed in the housing 110 and has a first accommodation space S12 and a second
accommodation space S14.
[0015]
FIG. 3 is a partial cross-sectional view of the earphone of FIG. Referring to FIG. 3, the first
speaker unit 130 is disposed in the first accommodation space S12. The second speaker unit 140
is disposed in the second accommodation space S14.
[0016]
As understood from the above, the first speaker unit 130 and the second speaker unit 140 are
disposed in the earphone 100 of the present embodiment. The first speaker unit 130 and the
second speaker unit 140 have different output frequencies. That is, the first speaker unit 130
and the second speaker unit 140 have different frequency response curves. Therefore, the total
output audio frequency of the earphone 100 of this embodiment is the sum of the output audio
frequencies of the first speaker unit 130 and the second speaker unit 140, and a wider output
audio frequency range and a smooth frequency response curve are simplified. Can be obtained.
Therefore, better sound quality can be provided to the user by using the earphone 100 of this
embodiment. Moreover, in the earphone 100 of the present embodiment, since the first speaker
unit 130 and the second speaker unit 140 are fixed by the bracket 120, the bracket 120 and the
housing 100 can easily maintain the fixed relative position. it can. Therefore, the first speaker
unit 130 and the second speaker unit 140 can secure a better audio output space, can provide
better sound quality to the user, and can reduce the degree of difficulty in assembly.
[0017]
Housing 110 includes a front housing 110A and a rear housing 110B. The front housing 110A is
assembled to the rear housing 110B. For example, when assembling the earphone 100 of the
present embodiment, the first speaker unit 130 is disposed in the first accommodation space S12
of the bracket 120. Then, the second speaker unit 140 is disposed in the second accommodation
space S14 of the bracket 120. Then, the bracket 120, the first speaker unit 130 and the second
speaker unit 140 are simultaneously disposed in the housing 110A. Finally, the casing 110A is
assembled to the casing 110B to form the earphone 100 of the present embodiment. Since the
first speaker unit 130 and the second speaker unit 140 are fixed by the bracket 120, after the
02-05-2019
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first speaker unit 130 and the second speaker unit 140 are disposed in the housing 110, the first
speaker unit 130 and the second speaker unit 140 are arranged. Assembly time and cost can be
reduced without the need for an additional process of positioning the speaker unit 140. The
assembly between the precursor 110A and the precursor 110B can be accomplished by a simple
wedge structure or other method.
[0018]
The housing 110 of the present embodiment has a main audio output path P12. The sounds
provided by the first speaker unit 130 and the second speaker unit 140 are both transmitted out
via the main audio output path P12. Further, the bracket 120 of the present embodiment further
includes a central opening P14 provided at the front center of the bracket 120. The first
accommodation space S12 is connected to the main audio output path P12 via the central
opening P14. Further, the bracket 120 of the present embodiment further has a plurality of
peripheral openings P16 provided around the front side of the bracket 120. The second
accommodation space S14 is connected to the main audio output path P12 via the peripheral
opening P16. That is, the sound provided by the first speaker unit 130 of the present
embodiment is transmitted to the main audio output path P12 through the central opening P14,
and the sound provided by the second speaker unit 140 of the present embodiment is It is
transmitted to the main audio output path P12 through the opening P16. By placing two
independent transmission paths in front of the main audio output path P12, interference
between the sounds provided by the first speaker unit 130 and the second speaker unit 140 can
be avoided and at the same time the sound quality is maintained You can also
[0019]
In particular, the bracket 120 of the present embodiment includes a front plate 122, a first
cylindrical portion 124, a second cylindrical portion 126, and at least one connecting portion
128. The first cylindrical portion 124 is connected to the front plate 122 and has a first
accommodation space S12. The second cylindrical portion 126 is separated from the first
cylindrical portion 124 and has a second accommodation space S14. The first cylindrical portion
124 is disposed between the front plate 122 and the second cylindrical portion 126. The first
cylindrical portion 124 and the second cylindrical portion 126 are cylindrical, and the diameter
of the first cylindrical portion 124 is smaller than the diameter of the second cylindrical portion
126. The first cylindrical portion 124 and the second cylindrical portion 126 are connected by a
plurality of connection portions 128. The space between the first cylindrical portion 124 and the
second cylindrical portion 126 is used to transmit the sound provided by the second speaker unit
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140 to the surrounding opening P16. The front plate 122 has a central opening P14 and a
peripheral opening P16 around the central opening P14. The transmission path of the sound
provided by the first speaker unit 130 is indicated by arrow A10, and the transmission path of
the sound provided by the second speaker unit 140 is indicated by arrow A20. As shown in FIG.
3, the arrows A10 and A20 are properly separated by the front plate 122 and the first tubular
portion 124 so that the interference between the sounds provided by the first speaker unit 130
and the second speaker unit 140 Can be avoided and at the same time maintain the sound
quality.
[0020]
Generally, the output audio frequency of the smaller first speaker unit 130 is higher than the
output audio frequency of the larger second speaker unit 140, but the present invention is not
limited thereto. Clearly, the output audio frequency of the first speaker unit 130 partially
overlaps the output audio frequency of the second speaker unit 140.
[0021]
Referring to FIG. 2, the earphone 100 of the present embodiment further includes a plurality of
conducting wires 150. The first speaker unit 130 has two first input ends 132 and two first
output ends 134. Each first input 132 is electrically connected to one of the first outputs 134, for
example, via a trace on a circuit board (not shown). The second speaker unit 140 has two second
input ends 142, two second output ends 144, and two connection ends 146. Each second input
end 142 is electrically connected to one second output end 144 and one connection end 146, for
example, via a wire on a circuit board (not shown). Each second input end 142 is electrically
connected to an external sound source 50 via one lead 150. Each second output end 144 is
electrically connected to the second coil 148 of the second speaker unit 140 via one lead 150.
Each connection end 146 is electrically connected to the first input end 132 via one lead 150.
Each first output end 134 is electrically connected to the first coil 138 of the first speaker unit
130 via one lead 150. The first coil 138 and the second coil 148 are shown in broken lines. In
the present embodiment, the first speaker unit 130 and the second speaker unit 140 are first
connected by the conducting wire 150, and then the second speaker unit 140 is connected to the
external sound source 50 via the conducting wire 150. Therefore, the complexity of the wire
when connecting the first speaker unit 130 and the second speaker unit 140 with the conducting
wire 150 can be reduced, and the possibility of yield reduction caused by the disconnection
generated during the assembly can also be reduced be able to.
02-05-2019
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[0022]
The inner wall of the second cylindrical portion 126 has a wire trench L12. The lead 150
between the connection end 146 and the first input end 132 can pass through the wire trench
L12 as shown in FIG. Housing 110 has wire holes L14. The conducting wire 150 between the
second input end 142 and the external sound source 50 can pass through the wire hole L14.
[0023]
As described above, the earphone of the present invention can achieve a uniform frequency
response curve because the overall output audio range generated by the two speaker units is
relatively wide, thereby making the sound quality of the earphone It can be improved. Also, since
the relative position of the two speaker units is fixed by the bracket, the two speaker units can
ensure better audio output space, thereby reducing the difficulty of assembly and reducing the
cost Can.
[0024]
As mentioned above, although this invention was disclosed by the embodiment, it is of course not
intended to limit this invention, and it is suitable within the technical concept of this invention so
that those skilled in the art can easily understand. The scope of patent protection must be
defined on the basis of the scope of claims and the area equivalent thereto, since various changes
and modifications can naturally be made.
[0025]
Reference Signs List 50 external sound source 100 earphone 110 housing 110A front 110B rear
housing 120 bracket 122 front plate 124 first cylindrical portion 126 second cylindrical portion
128 connection portion 130 first speaker unit 132 first input end 134 first output end 138 first
coil 140 second speaker unit 142 second input end 144 second output end 146 connection end
148 second coil 150 conducting wire A10, A20 arrow L12 wire trench L14 wire hole P12 main
output voice path P14 central opening P16 peripheral opening S16 first housing space S14
second accommodation space
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