CN107801117B - Wireless earphone - Google Patents
Wireless earphone Download PDFInfo
- Publication number
- CN107801117B CN107801117B CN201711233587.0A CN201711233587A CN107801117B CN 107801117 B CN107801117 B CN 107801117B CN 201711233587 A CN201711233587 A CN 201711233587A CN 107801117 B CN107801117 B CN 107801117B
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- audio driving
- wireless
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- antenna
- driving component
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- 238000004891 communication Methods 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims description 27
- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 claims description 4
- 230000005404 monopole Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- H04R1/1058—Manufacture or assembly
-
- 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
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention relates to a wireless earphone, which relates to the technical field of wireless earphones and mainly solves the technical problems that the existing wireless earphone emits wireless electromagnetic wave signals to the periphery, most of electromagnetic wave signals facing the head are absorbed by the head, so that the wireless signals are poor, and the communication effect of a Bluetooth earphone is unstable. The technical scheme mainly adopted is as follows: the wireless earphone includes: the first side of the audio driving component has an earplug plug; the wireless communication component comprises a wire antenna arranged on a second side of the audio driving component, wherein the second side of the audio driving component is opposite to the first side of the audio driving component; the electromagnetic wave reflecting layer is arranged between the wire antenna and the earplug plug and is used for reflecting electromagnetic waves emitted by the wire antenna. Compared with the prior art, the electromagnetic wave energy absorbed by the head can be reduced, and the communication quality of the wireless earphone is improved.
Description
Technical Field
The invention relates to the technical field of wireless earphones, in particular to a wireless earphone.
Background
The wireless earphone generally adopts a Bluetooth communication technology, can establish wireless communication connection with the mobile phone, and can eliminate a data line between the wireless earphone and the mobile phone.
In some models of wireless earphone, left earphone and right earphone are connected through wired connection, and one earphone is provided with wireless communication part, needs to carry out wireless communication connection with the cell-phone. In the model of part, left earphone and right earphone are through wireless connection, and two earphones all are provided with wireless communication part, need carry out wireless communication connection between two earphones, and earphone still need carry out wireless communication connection with the cell-phone.
In the earphone that possesses wireless communication part, the wireless communication part in the earphone adopts the paster bluetooth antenna generally, and the electromagnetic wave is radiated to the periphery to the paster bluetooth antenna, can establish bluetooth connection with the cell-phone, sends audio data to bluetooth earphone, and wherein, wireless earphone is to the wireless electromagnetic wave signal of radiation all around, and the electromagnetic wave signal of orientation head can be mostly absorbed by the head, causes wireless signal variation for bluetooth earphone's communication effect is unstable.
Disclosure of Invention
In view of this, the present invention provides a wireless earphone, which mainly solves the technical problem that the existing wireless earphone emits wireless electromagnetic wave signals to the periphery, and most of the electromagnetic wave signals towards the head are absorbed by the head, so that the wireless signals are degraded, and the communication effect of the bluetooth earphone is unstable.
In order to achieve the above purpose, the present invention mainly provides the following technical solutions:
an embodiment of the present invention provides a wireless earphone including:
an audio driving component having an earplug plug on a first side thereof;
a wireless communication component comprising a wire antenna disposed on a second side of the audio driving component, the second side of the audio driving component being an opposite side of the first side of the audio driving component;
the electromagnetic wave reflecting layer is arranged between the wire antenna and the earplug plug and used for reflecting electromagnetic waves emitted by the wire antenna.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
Optionally, the wireless earphone described above, wherein the electromagnetic wave reflecting layer comprises a metal reflecting layer disposed on a printed circuit board.
Optionally, the wireless earphone described above, wherein the first end of the printed circuit board is electrically connected to the audio driving component, and the second end of the printed circuit board extends outwards from the audio driving component to form an extension part and is electrically connected to the microphone component;
the wire antenna is disposed on one side of the extension portion, and extends toward a direction in which the extension portion extends.
Optionally, in the foregoing wireless earphone, a circuit layer is disposed on the extension portion, and the audio driving component is electrically connected to the microphone component through the circuit layer.
Optionally, the wireless earphone described above, wherein the circuit layer and the metal reflective layer are arranged in the same layer; or (b)
The circuit layer and the metal reflecting layer are arranged in a layered mode.
Optionally, in the wireless earphone, a size of an operating wavelength of the wire antenna on the carrier is a first wavelength size;
the size of the metal layer is larger than or equal to a quarter of the first wavelength size in the extending direction of the extending part.
Optionally, the wireless earphone described above, wherein the wire antenna comprises a monopole antenna or a loop antenna or a PIFA antenna.
Optionally, in the wireless earphone, an outer dimension of the metal layer is greater than or equal to an outer dimension of the line antenna perpendicularly projected on the extension portion.
Optionally, the wireless earphone described above, wherein the metal reflective layer is electrically connected to a ground circuit.
Optionally, the wireless earphone described above, wherein the audio driving part includes a battery and an audio driving circuit.
By means of the technical scheme, the wireless earphone provided by the technical scheme of the invention has at least the following advantages:
according to the technical scheme provided by the embodiment of the invention, after the wireless earphone is worn on the head, the earplug plug at the first side of the audio driving part is inserted into the earhole, and after the wire antenna at the second side of the audio driving part emits radio waves to the periphery, the radio waves emitted towards the head are reflected by the electromagnetic wave reflecting layer, so that compared with the prior art, the electromagnetic wave energy absorbed by the head can be reduced, and the communication quality of the wireless earphone is improved.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of an internal structure of a wireless earphone according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a part of a printed circuit board and a wire antenna of a wireless earphone according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an antenna direction effect of a wireless earphone according to an embodiment of the present invention.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following detailed description refers to the specific implementation, structure, characteristics and effects of the wireless earphone according to the invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
As shown in fig. 1, one embodiment of the present invention proposes a wireless earphone, which includes: an audio driving part 10, a wireless communication part, and an electromagnetic wave reflecting layer 20.
A first side of the audio driving component has an earplug plug 30; the wireless communication means comprises a wire antenna 40 arranged on a second side of the audio driving means, the second side of the audio driving means 10 being the opposite side of the first side of the audio driving means 10; the electromagnetic wave reflecting layer 20 is disposed between the wire antenna 40 and the earplug plug 30, and the electromagnetic wave reflecting layer 20 is used for reflecting electromagnetic waves emitted by the wire antenna 40.
According to the technical scheme provided by the embodiment of the invention, after the wireless earphone is worn on the head, the earplug plug at the first side of the audio driving part is inserted into the earhole, and after the wire antenna at the second side of the audio driving part emits radio waves to the periphery, the radio waves emitted towards the head are reflected by the electromagnetic wave reflecting layer, so that compared with the prior art, the electromagnetic wave energy absorbed by the head can be reduced, and the communication quality of the wireless earphone is improved.
Generally, the audio driving component may include a battery, an audio driving circuit, and a speaker, the battery powering the wireless headset audio driving component, the wireless communication component, and the speaker, the audio driving circuit being operable to decode information received by the wireless communication component and to transmit the decoded electrical signal to the speaker.
The wireless communication means is usually a bluetooth communication means, but not limited thereto, and may be a wireless communication means such as infrared or WIFI. In the embodiment of the invention, the line Antenna may be a monopole Antenna, a loop Antenna, a planar inverted-F Antenna PIFA (Planar Inverted F-shaped Antenna, abbreviated PIFA) Antenna, or the like.
The electromagnetic wave reflecting layer can be made of metal and is arranged on a metal panel of the wireless earphone, in practical production, the volume of the wireless earphone is limited, and the addition of the metal panel can greatly increase the volume of the wireless earphone, and in one embodiment of the invention, as shown in fig. 1 and 2. The electromagnetic wave reflecting layer 20 is printed on the circuit board 50.
The printed circuit board 50 may also serve as a circuit carrier for other components, for example, a first end of the printed circuit board 50 is electrically connected to the audio driving part 10, and a second end of the printed circuit board 50 extends outwardly from the audio driving part 10 to form an extension and is electrically connected to the microphone part 60; the wire antenna 40 is disposed at one side of the extension portion, and extends toward the direction in which the extension portion extends. The extension part is provided with a circuit layer 21, and the audio driving part 10 and the microphone part 60 are electrically connected through the circuit layer 21. In practice, the printed circuit board may also be used as a circuit carrier for other components, not limited to microphones. For example, the circuit board may also serve as a line carrier for the feed matching circuit and/or the ground circuit of the line antenna.
In order to make the metal reflection layer have a better reflection effect on electromagnetic waves emitted by the linear antenna, the area of the reflection layer needs to be matched with the actual size of the linear antenna, in assembly, the linear antenna is arranged on the carrier, according to different materials selected by the carrier, the wavelength of the electromagnetic waves emitted by the linear antenna on the carrier with different materials can be changed, and the size of the reflection layer can be adjusted along with the change of the materials of the carrier. Specifically, the size of the working wavelength of the wire antenna on the carrier is the first wavelength size, and in the extending direction of the extension part, the size of the metal layer is greater than or equal to one fourth of the first wavelength size, so that the metal layer can generate a good electromagnetic wave reflection effect. Meanwhile, the width of the metal layer is larger than or equal to that of the wire antenna, so that the outer contour dimension of the metal layer is larger than or equal to that of the wire antenna vertically projected on the extension part.
The circuit layer and the metal layer can be arranged on the same layer, so that the area of the extension part is larger, and the area of the circuit layer is required to be reconfigured due to the larger occupied area of the metal layer, so that the area of the printed circuit board is larger, and the volume of the wireless earphone is increased. In another embodiment provided by the invention, the circuit layer and the metal layer can be arranged in a layered manner, for example, a printed circuit board adopts a double-sided circuit board, the circuit layer and the metal layer are respectively arranged on two sides of the double-sided circuit board, or the printed circuit board adopts three or more layers of printed circuit boards, and the metal layer is arranged in any one layer of the three or more layers of printed circuit boards. In particular, the metal layer may be arranged on an outer surface of the printed circuit board opposite the wire antenna.
In the process of electrically connecting the two ends of the line antenna with the electric matching circuit and the grounding circuit respectively, the metal reflecting layer can be connected with the grounding circuit and can be used as a grounding electrode of the line antenna.
In the electromagnetic wave detection test of the wireless earphone according to the embodiment of the invention, as shown in fig. 3, the test effect is that the electromagnetic wave generated on the plug side of the earplug close to the head is far less than the electromagnetic wave generated on the wire antenna side far away from the head. After the wireless earphone is worn, the energy absorption of the head to electromagnetic waves is reduced, so that the radiation performance of the antenna is better.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the apparatus described above may be referred to with respect to each other. In addition, the "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent the merits and merits of the embodiments.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed as reflecting the intention of: i.e., the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The components of the embodiments may be combined into one component, and furthermore they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the elements of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination. Various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or assembly does not exclude the presence of a plurality of such components or assemblies. The invention may be implemented by means of an apparatus comprising several distinct elements. In the claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, etc. do not denote any order. These words may be interpreted as names.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way, but any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (5)
1. A wireless headset, comprising:
an audio driving component having an earplug plug on a first side thereof;
a wireless communication component comprising a wire antenna disposed on a second side of the audio driving component, the second side of the audio driving component being an opposite side of the first side of the audio driving component;
the electromagnetic wave reflecting layer is arranged between the wire antenna and the earplug plug and is used for reflecting electromagnetic waves emitted by the wire antenna;
the electromagnetic wave reflecting layer comprises a metal reflecting layer arranged on the printed circuit board;
the first end of the printed circuit board is electrically connected with the audio driving component, and the second end of the printed circuit board extends outwards from the audio driving component to form an extension part and is electrically connected with the microphone component;
the wire antenna is arranged on one side of the extension part and extends towards the extending direction of the extension part;
the size of the working wavelength of the line antenna on the carrier is a first wavelength size;
the size of the metal layer is larger than or equal to a quarter of the first wavelength size in the extending direction of the extending part;
the outer contour dimension of the metal layer is larger than or equal to the outer contour dimension of the vertical projection of the wire antenna on the extension part;
the metal reflecting layer is electrically connected with a grounding circuit.
2. The wireless headset of claim 1, wherein the wireless headset comprises a wireless communication device,
the extension part is provided with a circuit layer, and the audio driving part and the microphone part are electrically connected through the circuit layer.
3. The wireless headset of claim 2, wherein the wireless headset comprises a wireless communication device,
the circuit layer and the metal reflecting layer are arranged on the same layer; or (b)
The circuit layer and the metal reflecting layer are arranged in a layered mode.
4. A wireless headset as claimed in any one of claims 1-3, wherein,
the line antenna comprises a monopole or loop antenna or a PIFA antenna.
5. The wireless headset of claim 1, wherein the wireless headset comprises a wireless communication device,
the audio driving part comprises a battery and an audio driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233587.0A CN107801117B (en) | 2017-11-30 | 2017-11-30 | Wireless earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233587.0A CN107801117B (en) | 2017-11-30 | 2017-11-30 | Wireless earphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107801117A CN107801117A (en) | 2018-03-13 |
| CN107801117B true CN107801117B (en) | 2023-12-19 |
Family
ID=61537292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711233587.0A Active CN107801117B (en) | 2017-11-30 | 2017-11-30 | Wireless earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107801117B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323542B (en) * | 2019-06-28 | 2021-08-06 | 歌尔科技有限公司 | Antenna device and bluetooth headset |
| CN112153508B (en) | 2019-06-29 | 2022-04-05 | 华为技术有限公司 | Bluetooth earphone |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202434701U (en) * | 2011-12-21 | 2012-09-12 | 东莞市松汇电子通讯有限公司 | Electromagnetic wave direction regulator |
| CN203896487U (en) * | 2014-05-28 | 2014-10-22 | 郑浩 | Wireless earphone and support equipment thereof |
| CN104300689A (en) * | 2014-09-22 | 2015-01-21 | 郭和友 | Electronic device with wireless audio connection function and wireless electricity supply function |
| CN104979642A (en) * | 2014-04-02 | 2015-10-14 | 启碁科技股份有限公司 | Multi-band antenna and multi-band antenna configuration method |
| CN106331928A (en) * | 2016-09-13 | 2017-01-11 | 富士高实业有限公司 | Pure wireless earphone provided with ground reflector |
| CN205944397U (en) * | 2015-07-27 | 2017-02-08 | 禾邦电子(苏州)有限公司 | Bluetooth antenna |
| CN106707621A (en) * | 2017-01-17 | 2017-05-24 | 京东方科技集团股份有限公司 | Backlight module, display panel comprising same and electronic device |
| CN206402405U (en) * | 2016-12-29 | 2017-08-11 | Tcl通力电子（惠州）有限公司 | Wireless headset |
| CN207665156U (en) * | 2017-11-30 | 2018-07-27 | 出门问问信息科技有限公司 | Wireless headset |
-
2017
- 2017-11-30 CN CN201711233587.0A patent/CN107801117B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202434701U (en) * | 2011-12-21 | 2012-09-12 | 东莞市松汇电子通讯有限公司 | Electromagnetic wave direction regulator |
| CN104979642A (en) * | 2014-04-02 | 2015-10-14 | 启碁科技股份有限公司 | Multi-band antenna and multi-band antenna configuration method |
| CN203896487U (en) * | 2014-05-28 | 2014-10-22 | 郑浩 | Wireless earphone and support equipment thereof |
| CN104300689A (en) * | 2014-09-22 | 2015-01-21 | 郭和友 | Electronic device with wireless audio connection function and wireless electricity supply function |
| CN205944397U (en) * | 2015-07-27 | 2017-02-08 | 禾邦电子(苏州)有限公司 | Bluetooth antenna |
| CN106331928A (en) * | 2016-09-13 | 2017-01-11 | 富士高实业有限公司 | Pure wireless earphone provided with ground reflector |
| CN206402405U (en) * | 2016-12-29 | 2017-08-11 | Tcl通力电子（惠州）有限公司 | Wireless headset |
| CN106707621A (en) * | 2017-01-17 | 2017-05-24 | 京东方科技集团股份有限公司 | Backlight module, display panel comprising same and electronic device |
| CN207665156U (en) * | 2017-11-30 | 2018-07-27 | 出门问问信息科技有限公司 | Wireless headset |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107801117A (en) | 2018-03-13 |
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