CN108810709B - Earphone sound release hole adjusting device and earphone - Google Patents
Earphone sound release hole adjusting device and earphone Download PDFInfo
- Publication number
- CN108810709B CN108810709B CN201810837624.7A CN201810837624A CN108810709B CN 108810709 B CN108810709 B CN 108810709B CN 201810837624 A CN201810837624 A CN 201810837624A CN 108810709 B CN108810709 B CN 108810709B
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- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses an earphone sound leakage hole adjusting device and an earphone. The earphone sound release hole adjusting device comprises a cover plate, a suction pad combined on the bottom surface of the cover plate, and a push-pull plate arranged in the cover plate; the cover plate is provided with a sound outlet hole communicated with the top surface and the bottom surface of the cover plate, and a sound inlet hole matched with the sound outlet hole of the earphone is arranged on the suction pad corresponding to the position of the sound outlet hole; a chute is arranged on the top surface of the cover plate close to the sound outlet hole; a push rod is arranged on the top surface of the push-pull plate, extends out of the chute and can reciprocate along the chute; the push-pull plate is configured to be capable of being pushed into and pulled out of the sound hole by the push rod to adjust the size of the sectional area of the sound inlet hole. The sound leakage hole adjusting device can adjust the area of the sound leakage hole of the earphone, so that the earphone has good sound quality.
Description
Technical Field
The invention relates to the technical field of electroacoustic products, in particular to an earphone sound leakage hole adjusting device and an earphone.
Background
The earphone is a pair of conversion units which can convert the received electric signals into audio frequency which can be seen and heard. The earphone is very popular with users because it is portable and enables users to listen to audio alone without affecting other people. Nowadays, with the continuous improvement of the quality of life of people, users put forward higher requirements on the tone quality of earphones. In fact, the size and shape of the sound outlet hole of the earphone has a large influence on the sound quality of the earphone.
The size and shape of the sound vent of the earphone are adjusted in the prior art, and two main ways exist: one way is to simulate the headphone sound venting holes and then adjust the headphone sound venting holes according to the data obtained from the simulation. Because the simulation model is established and the simulation experiment is carried out in the simulation process, the whole operation process is complex and troublesome. The other mode is to test the sound leakage hole of the earphone by corresponding test equipment, and then adjust the size, the shape and the like of the sound leakage hole of the earphone according to the test result. But the existing corresponding test equipment has the defects of higher price, lower test accuracy and the like. Therefore, it is very necessary to research a new earphone sound leakage hole adjusting technology.
Disclosure of Invention
The invention aims to provide a new technical scheme of an earphone sound leakage hole adjusting device.
According to a first aspect of the present invention, there is provided an earphone sound vent adjustment device, comprising a cover plate, a suction pad combined on a bottom surface of the cover plate, and a push-pull plate disposed in the cover plate; the cover plate is provided with a sound outlet hole communicated with the top surface and the bottom surface of the cover plate, and a sound inlet hole matched with the sound outlet hole of the earphone is arranged on the suction pad corresponding to the position of the sound outlet hole; a sliding groove is formed in the position, close to the sound outlet hole, on the top surface of the cover plate; a push rod is arranged on the top surface of the push-pull plate, extends out of the chute and can reciprocate along the chute; the push-pull plate is configured to be pushed into and pulled out of the sound outlet hole through the push rod so as to adjust the size of the cross-sectional area of the sound inlet hole.
Optionally, a scale panel is further disposed on the top surface of the cover plate, the position of the scale panel is close to the sound outlet, and the scale panel and the chute are arranged side by side; the scale panel is provided with an area value scale corresponding to the exposed part of the sound inlet hole; the push rod can reciprocate relative to the scale panel along the sliding groove, and the push rod indicates the area value of the exposed part of the sound inlet hole through the scale panel.
Optionally, two sliding grooves are arranged, and the two sliding grooves are respectively arranged at two opposite side edges of the scale panel; the two push rods are symmetrically and fixedly connected to one side edge of the top surface of the push-pull plate and extend out of the two sliding grooves respectively.
Optionally, a fixing piece extending into the cover plate is arranged on the scale panel; the fixing member is configured to fix the push-pull plate when the push-pull plate is moved to a proper position in the sound outlet.
Optionally, an internal threaded hole is formed in the center of the lower side of the scale panel; the fixing piece comprises a fixing knob and a blocking rod connected with the fixing knob, the outer wall of the blocking rod is provided with an external thread matched with the internal thread hole, and the blocking rod penetrates through the internal thread hole and extends into the cover plate; the fixing piece is configured to rotate the fixing knob to enable the blocking rod to move towards the push-pull plate pushed into the sound outlet hole, and the lower end of the blocking rod is used for abutting against the push-pull plate so as to enable the push-pull plate to be relatively fixed.
Optionally, the push-pull plate is slidably connected within the cover plate.
Optionally, a sliding block is arranged on the bottom surface of the push-pull plate; and a sliding rail matched with the sliding block is arranged on the surface, in contact with the bottom surface of the push-pull plate, in the cover plate, so that the push-pull plate can slide in the cover plate in a reciprocating manner.
Optionally, two sliding blocks are arranged, and the two sliding blocks are symmetrically distributed on the bottom surface of the push-pull plate.
Optionally, the suction pad is an elastic suction pad.
According to a second aspect of the present invention, there is provided a headset comprising: the earphone sound leakage hole adjusting device of any one of the above, wherein the earphone sound leakage hole adjusting device is attached to the earphone sound leakage hole, and the sound inlet hole corresponds to the earphone sound leakage hole.
The earphone sound leakage hole adjusting device provided by the embodiment of the invention can improve the sound quality of the earphone. Moreover, the device has simple structure and convenient operation.
According to the earphone provided by the embodiment of the invention, the earphone sound leakage hole adjusting device is arranged on the earphone sound leakage hole, so that an earphone user can directly adjust the earphone sound leakage hole to adjust the tone quality of the earphone. And when the earphone is not used, the sound leakage hole can be protected by the earphone sound leakage hole adjusting device.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a plan view illustrating a sound leakage hole adjusting apparatus of an earphone according to an embodiment of the present invention.
Fig. 2 shows a bottom view of the earphone sound leakage hole adjusting device provided by the embodiment of the invention.
Fig. 3 shows a cross-sectional view along X-X in fig. 1.
Fig. 4 is a schematic structural diagram illustrating a push-pull plate in an earphone sound vent adjustment device according to an embodiment of the present invention.
Fig. 5 is a partial schematic structural diagram of another earphone sound leakage hole adjusting device provided by the embodiment of the invention.
Fig. 6 shows a schematic view of the push-pull plate of fig. 5.
Fig. 7 shows a schematic structure of a conventional earphone.
Fig. 8 is a schematic structural diagram illustrating a conventional earphone having a sound leakage hole adjusting device according to an embodiment of the present invention mounted thereon.
And parts are indicated by reference numerals.
1. The earphone comprises a push rod, a cover plate, a fixing piece, a push-pull plate, a sliding groove, a sound outlet hole, a scale panel, a suction pad, a sound inlet hole, a sliding block, an earphone and an earphone vent hole, wherein the push rod is 2, the cover plate is 3, the fixing piece is 4, the push-pull plate is 5, the sliding groove is 6, the sound outlet hole is 7, the scale panel is 8.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The earphone sound leakage hole adjusting device provided by the invention is assembled on the earphone sound leakage hole on the earphone shell, and can be used for adjusting the size and the shape of the earphone sound leakage hole, so that the sound quality of the earphone can be effectively improved.
In the production process of the earphone, based on the improvement of the sound quality of the earphone, the size and the shape of the sound leakage hole of the earphone can be adjusted and determined by adopting the sound leakage hole adjusting device of the earphone, and the sound leakage hole of the earphone with the proper size and shape is directly arranged on the earphone before the earphone leaves a factory.
In addition, the earphone sound leakage hole adjusting device provided by the invention can also be directly assembled at the earphone sound leakage hole on the earphone shell, so that a user can automatically adjust the size and the shape of the earphone sound leakage hole according to the requirement of the user on the sound quality of the earphone in the process of using the earphone. And the earphone sound leakage hole adjusting device is assembled at the earphone sound leakage hole, so that the earphone sound leakage hole can be shielded and protected when the earphone is not used at ordinary times.
The earphone sound leakage hole adjusting device provided by the invention, as shown in fig. 1 and fig. 2, comprises: the cover plate 2, a suction pad 8 combined on the bottom surface of the cover plate 2 and a push-pull plate 4 arranged in the cover plate 2 in a matching way. The cover plate 2 is provided with a sound outlet hole 6 communicating the top surface and the bottom surface thereof. A sound inlet hole 9 matched with the sound discharge hole of the earphone is arranged on the suction pad 8 corresponding to the sound outlet hole 6, and the specific meaning here is: the size and shape of the sound inlet hole 9 are the same as those of the earphone sound leakage hole. A chute 5 is arranged on the top surface of the cover plate 2 near the sound outlet hole 6; a push rod 1 is arranged on the top surface of the push-pull plate 4, and the push rod 1 extends out of the chute 5 and can reciprocate along the chute 5; wherein the push-pull plate 4 is configured to be able to push it into and pull it out of the sound hole 6 through the push rod 1 to shield and expose the sound inlet hole 9, thereby being able to adjust the size of the cross section of the sound inlet hole 9.
A scale panel 7 is further disposed on the top surface of the cover plate 2 at a position close to the sound outlet 6, and the scale panel 7 and the chute 5 are disposed side by side. The scale panel 7 is provided with an area value scale corresponding to the exposed portion of the sound inlet hole 9. The push rod 1 extends out of the sliding chute 5 and can reciprocate relative to the scale panel 7 along the sliding chute 5, and the push rod 1 can indicate the area value of the exposed part of the sound inlet hole 9 through the scale panel 7. The scale panel 7 and the chute 5 have the same length, and the push rod 1 can indicate any position on the scale panel 7 in the chute 5.
When the earphone sound leakage hole adjusting device is used, as shown in fig. 2, the whole earphone sound leakage hole adjusting device is adsorbed on the earphone by adopting the absorbing pad 8 on the bottom surface of the cover plate 2, and the sound inlet hole 9 corresponds to the earphone sound leakage hole. The assembling mode has the characteristics of convenience in disassembly and no damage to the earphone.
Alternatively, the bottom surface of the cover plate 2 is fixedly connected with the suction pad 8 so that the suction pad 8 can be firmly attached to the bottom surface of the cover plate 2.
Optionally, the suction pad 8 is an elastic suction pad, which can deform to adapt to the shape of the earphone shell, so that the suction pad can be better attached to the earphone shell, and the earphone sound release hole adjusting device can be firmly assembled on the earphone.
The sound inlet hole 9 is located right below the sound outlet hole 6, when the push-pull plate 4 is pushed into the sound outlet hole 6, the push-pull plate 4 can shield the sound inlet hole 9, and when the push-pull plate 4 pushed into the sound outlet hole 6 is pulled out of the sound outlet hole 6, the sound inlet hole 9 can be exposed again. In order to completely shield the sound inlet hole 9, the size of the push-pull plate 4 should be not smaller than the size of the sound inlet hole 9, but the size of the push-pull plate 4 is not too large, because the push-pull plate 4 is disposed in the cover plate 2, and if the size of the push-pull plate 4 is large, the size of the cover plate 2 will be large. In order to avoid the oversize of the push-pull plate 4, the push rod 1 may be arranged on the side of the push-pull plate 4 when the push rod 1 is arranged on the push-pull plate 4.
The scale panel 7 is provided with an area value scale corresponding to the exposed portion of the sound inlet hole 9. The area value scale is marked with the area value range of the exposed part of the sound inlet hole 9, and the exposed part of the sound inlet hole 9 is determined by the position of the push-pull plate 4 in the sound outlet hole 6. Since the size and shape of the sound inlet hole 9 are matched with those of the earphone sound leakage hole, the area value of the exposed part of the sound inlet hole 9 is the sound outlet area value of the earphone sound leakage hole.
Specifically, a plurality of scale marks are marked on the area value scale, each scale mark is marked with a corresponding numerical value, and each numerical value corresponds to the area value of the exposed portion of the corresponding sound inlet hole 9. The numerical value marked on the area value scale can be flexibly set according to the requirement, and is not limited herein.
The sliding groove 5 and the scale panel 7 are arranged side by side, and when the push rod 1 extends out of the sliding groove 5, the push rod 1 can move relative to the scale panel 7 along the sliding groove 5, and drives the push-pull plate 4 to move in the sound outlet 6. Specifically, the push-pull plate 4 is pushed by the push rod 1 to enter the sound outlet hole 6, the push rod 1 is stopped being pushed when the push-pull plate 4 reaches a preset position, at this time, the push rod 1 stays at a certain position in the chute 5, and because the chute 5 and the scale panel 7 are arranged side by side, at this time, the area value of the exposed part of the sound inlet hole 9 can be indicated by the push rod 1 through the scale panel 7, and the area value is the sound outlet area value of the sound outlet hole of the earphone.
Alternatively, as shown in fig. 1 and 3, the number of the slide grooves 5 may be set to two, and the two slide grooves 5 are respectively provided at two opposite side edges of the scale panel 7. When the two sliding grooves 5 are provided, as shown in fig. 4, two push rods 1 are disposed on the push-pull plate 4, and preferably, the two push rods 1 are symmetrically and fixedly connected to one side edge of the top surface of the push-pull plate 4. Two push rods 1 extend from the two slide grooves 5, respectively. Due to the design, the push-pull plate 4 can be stably pushed in or pulled out to the sound outlet hole 6, and the push-pull plate 4 is not easy to incline in the moving process; moreover, the area value of the exposed part of the sound inlet hole 9 can be indicated by the two push rods 1 through the same scale panel 7, the indication result is more accurate, and the degree deviation is not easy to generate.
Alternatively, as shown in fig. 3, a fixing member 3 is provided on the scale panel 7 to protrude into the cover plate 2. The fixing member 3 is configured to: when the push-pull plate 4 moves to a proper position in the sound outlet hole 6, the push-pull plate 4 is fixed, so that the push-pull plate 4 cannot move randomly, the push rod 1 is favorably fixed in the chute 5, and the area value of the exposed part of the sound inlet hole 9 can be accurately obtained from the scale panel 7.
Specifically, an internal threaded hole is provided at the center of the lower side of the scale panel 7; the fixing piece 3 comprises a fixing knob and a blocking rod connected with the fixing knob, the outer wall of the blocking rod is provided with an external thread matched with the internal thread hole, and the blocking rod penetrates through the internal thread hole and extends into the cover plate 2; wherein the fixing member 3 is configured to: and rotating the fixing knob to enable the baffle rod to move towards the push-pull plate 4 pushed into the sound outlet hole 6, wherein the lower end of the baffle rod is used for abutting against the push-pull plate 4 so as to relatively fix the push-pull plate 4.
Of course, the fixing member may have another structure as long as the push-pull plate 4 extending into the sound hole 6 can be fixed, and is not limited herein.
A space for accommodating the push-pull plate 4 is reserved in the cover plate 2, and the push-pull plate 4 can be connected in the cover plate 2 in a sliding manner.
Specifically, as shown in fig. 5 and 6, a slider 10 is provided on the bottom surface of the push-pull plate 4; a sliding rail matched with the sliding block 10 is arranged on the surface of the cover plate 2 contacted with the bottom surface of the push-pull plate 4, so that the push-pull plate 4 can slide in the cover plate 2 in a reciprocating way. Compared with a structure without a slide block and a slide rail, the structure design can ensure that the push-pull plate 4 can move back and forth in the cover plate 2 more stably and smoothly.
Alternatively, one or two sliders may be provided as required.
In one example, when one slider is provided, the slider may be provided at the center of the bottom surface of the push-pull plate. In another example, when two sliders are provided, the two sliders are symmetrically arranged on the bottom surface of the push-pull plate in such a manner that the sliding process is more stable.
The invention also provides an earphone, as shown in fig. 7 and 8, the earphone sound leakage hole adjusting device provided by the invention is assembled at the earphone sound leakage hole 12 of the earphone 11.
Wherein, the earphone sound leakage hole adjusting device is directly adsorbed at the position of the earphone sound leakage hole 12 through the absorbing pad 8, and the earphone sound leakage hole 12 corresponds to the sound inlet hole 9 in the earphone sound leakage hole adjusting device.
The earphone sound leakage hole adjusting device is arranged on the earphone sound leakage hole 12, so that an earphone user can directly adjust the size and the shape of the earphone sound leakage hole 12 to adjust the sound quality of the earphone. When the earphone is not used, the push-pull plate 4 can be completely pushed into the sound outlet hole 6, the sound inlet hole 9 below the sound outlet hole 6 is completely shielded by the push-pull plate 4, and the push-pull plate 4 can protect the sound outlet hole 12 of the earphone.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. An earphone sound release hole adjusting device is characterized by comprising a cover plate, a suction pad combined on the bottom surface of the cover plate, and a push-pull plate arranged in the cover plate;
the cover plate is provided with a sound outlet hole communicated with the top surface and the bottom surface of the cover plate, and a sound inlet hole matched with the sound outlet hole of the earphone is arranged on the suction pad corresponding to the position of the sound outlet hole; a sliding groove is formed in the position, close to the sound outlet hole, on the top surface of the cover plate;
a push rod is arranged on the top surface of the push-pull plate, extends out of the chute and can reciprocate along the chute; the push-pull plate is configured to be pushed into and pulled out of the sound outlet hole through the push rod so as to adjust the size of the cross section area of the sound inlet hole;
a scale panel is further arranged on the top surface of the cover plate, close to the sound outlet hole, and the scale panel and the sliding groove are arranged side by side;
the scale panel is provided with an area value scale corresponding to the exposed part of the sound inlet hole;
the push rod can reciprocate relative to the scale panel along the sliding groove, and the push rod indicates the area value of the exposed part of the sound inlet hole through the scale panel;
the suction pad is an elastic suction pad.
2. The earphone sound leakage hole adjusting device according to claim 1, wherein there are two sliding grooves, and the two sliding grooves are respectively disposed at two opposite side edges of the scale panel;
the two push rods are symmetrically and fixedly connected to one side edge of the top surface of the push-pull plate and extend out of the two sliding grooves respectively.
3. The earphone sound leakage hole adjusting device according to claim 1, wherein a fixing member is provided on the scale panel to extend into the cover plate;
the fixing member is configured to fix the push-pull plate when the push-pull plate is moved to a proper position in the sound outlet.
4. The earphone sound leakage hole adjusting device according to claim 3, wherein an internal thread hole is provided at the center of the lower side of the scale panel;
the fixing piece comprises a fixing knob and a blocking rod connected with the fixing knob, the outer wall of the blocking rod is provided with an external thread matched with the internal thread hole, and the blocking rod penetrates through the internal thread hole and extends into the cover plate; the fixing piece is configured to rotate the fixing knob to enable the blocking rod to move towards the push-pull plate pushed into the sound outlet hole, and the lower end of the blocking rod is used for abutting against the push-pull plate so as to enable the push-pull plate to be relatively fixed.
5. The earphone sound vent adjustment mechanism of claim 1, wherein the push-pull plate is slidably connected within the cover plate.
6. The earphone sound release hole adjusting device of claim 1, wherein a sliding block is arranged on the bottom surface of the push-pull plate; and a sliding rail matched with the sliding block is arranged on the surface, in contact with the bottom surface of the push-pull plate, in the cover plate, so that the push-pull plate can slide in the cover plate in a reciprocating manner.
7. The earphone sound leakage hole adjusting device according to claim 6, wherein two sliding blocks are provided, and the two sliding blocks are symmetrically distributed on the bottom surface of the push-pull plate.
8. An earphone, comprising: the earphone sound leakage hole adjusting device of any one of claims 1-7, which is attached to the earphone sound leakage hole, and the sound inlet hole corresponds to the earphone sound leakage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837624.7A CN108810709B (en) | 2018-07-26 | 2018-07-26 | Earphone sound release hole adjusting device and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837624.7A CN108810709B (en) | 2018-07-26 | 2018-07-26 | Earphone sound release hole adjusting device and earphone |
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| Publication Number | Publication Date |
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| CN108810709A CN108810709A (en) | 2018-11-13 |
| CN108810709B true CN108810709B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810837624.7A Active CN108810709B (en) | 2018-07-26 | 2018-07-26 | Earphone sound release hole adjusting device and earphone |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050047377A (en) * | 2003-11-17 | 2005-05-20 | 주식회사 삼부커뮤닉스 | Unidirectional condenser microphone |
| CN201315661Y (en) * | 2008-11-21 | 2009-09-23 | 富港电子（东莞）有限公司 | Earphone set |
| KR20110115452A (en) * | 2010-04-15 | 2011-10-21 | 잘만테크 주식회사 | Earphone device |
| CN202268999U (en) * | 2011-09-09 | 2012-06-06 | 富港电子（东莞）有限公司 | slide headphone |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200803584A (en) * | 2006-06-29 | 2008-01-01 | Cotron Corp | In-ear type earphone with adjustable area of sound hole on housing behind speaker |
| CN201617399U (en) * | 2009-12-27 | 2010-11-03 | 刘向东 | Reading bookstand |
| CN203675270U (en) * | 2013-10-31 | 2014-06-25 | 富港电子（东莞）有限公司 | Tunable earphone |
| CN104735569A (en) * | 2013-12-19 | 2015-06-24 | 深圳富泰宏精密工业有限公司 | Earphone device |
-
2018
- 2018-07-26 CN CN201810837624.7A patent/CN108810709B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050047377A (en) * | 2003-11-17 | 2005-05-20 | 주식회사 삼부커뮤닉스 | Unidirectional condenser microphone |
| CN201315661Y (en) * | 2008-11-21 | 2009-09-23 | 富港电子（东莞）有限公司 | Earphone set |
| KR20110115452A (en) * | 2010-04-15 | 2011-10-21 | 잘만테크 주식회사 | Earphone device |
| CN202268999U (en) * | 2011-09-09 | 2012-06-06 | 富港电子（东莞）有限公司 | slide headphone |
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| CN108810709A (en) | 2018-11-13 |
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