CN206640756U - A kind of bluetooth earphone - Google Patents
A kind of bluetooth earphone Download PDFInfo
- Publication number
- CN206640756U CN206640756U CN201720379922.7U CN201720379922U CN206640756U CN 206640756 U CN206640756 U CN 206640756U CN 201720379922 U CN201720379922 U CN 201720379922U CN 206640756 U CN206640756 U CN 206640756U
- Authority
- CN
- China
- Prior art keywords
- antenna
- pcb board
- bluetooth earphone
- shell
- ground pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002184 metal Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012800 visualization Methods 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Aerials (AREA)
Abstract
It the utility model is related to a kind of bluetooth earphone, including shell and the wired control box that is arranged in shell；Wired control box includes pcb board, the FPC plates being laid on above pcb board and the antenna laid along shell inside edge；The distributing point of antenna is connected with the RF output end of the master chip of pcb board；The charge connector being connected with its earth point is provided with pcb board；Set and its integrally formed ground pad on FPC plates；Ground pad contacts with the shell of charge connector.For solving to cause earthing position improper because PCB sizes are small in existing bluetooth earphone, the problem of causing in earphone low antenna radiation efficiency, poor performance, realize and improve antenna radiation efficiency and radio-frequency performance.
Description
Technical field
The utility model belongs to bluetooth earphone technical field, and in particular to a kind of bluetooth earphone.
Background technology
Important component necessary to antenna is communication equipment, it sends and receives electricity when being communication equipment and base station communication
One important wireless device of magnetic wave.When being launched by communication equipment, antenna is responsible for converting electrical signals to electromagnetism amplitude
It is shot out, while the electromagnetic wave received is converted to electric signal by and can in time, sends the circuit board to communication equipment.
Increasingly focus on motion with people in recent years and like listening music, therefore user couple with bluetooth earphone in motion
The performance requirement more and more higher of sports type bluetooth earphone.The small bluetooth earphone of size due to its be easy to carry and with fashion by
To liking for more users, but pcb board size is smaller in the small bluetooth earphone of size, and antenna spatial design is small, relative to big
The pcb board of size has large-sized earthing position, and the earthing position size in the bluetooth earphone is also smaller, causes not reaching ear
Antenna frequencies required for machine, antenna radiation performance are poor.Therefore need to connect the bluetooth earphone with small size pcb board
The processing of position, to improve antenna RF performance.
Utility model content
The utility model provides a kind of bluetooth earphone, for solving because PCB sizes are small to cause in existing bluetooth earphone
Earthing position is improper, the problem of causing in earphone low antenna radiation efficiency, poor performance, improves antenna radiation efficiency and radio frequency
Energy.
In order to solve the above-mentioned technical problem, the utility model proposes that following technical scheme is solved：
A kind of bluetooth earphone, it is characterised in that including shell and the wired control box being arranged in shell；The wired control box includes
Pcb board, the FPC plates being laid on above the pcb board and the antenna laid along the shell inside edge；The feed of the antenna
Point is connected with the RF output end of the master chip of the pcb board；The charging being connected with its earth point is provided with the pcb board to connect
Connect device；Set and its integrally formed ground pad on the FPC plates；The shell of the ground pad and the charge connector
Contact.
Further, in order to ensure adequately grounded, the ground pad is connected by scolding tin or conducting foam with the charging
Connect the shell contact of device.
Further, the antenna is sheet metal.
Further, the size of the ground pad is 1mm * 2mm.
Further, perforation is offered on the pcb board, the distributing point of the antenna passes through the perforation and the master
The RF output end of chip is connected.
Further, in order to ensure that antenna has good omni-directional and high efficiency, the shape of the antenna is designed to U
Type.
Compared with prior art, the advantages of the utility model and beneficial effect is：The earth point of charge connector and pcb board
Connection, makes the earthing of casing of whole charge connector, by being provided with the ground pad contacted with the shell of charge connector, fills
Point using earthing position between FPC plates and pcb board, the connection of FPC plates and pcb board is realized, the size of equivalent increase pcb board,
Antenna radiation efficiency and radio-frequency performance are improved, and then realizes antenna frequencies needed for earphone.
Brief description of the drawings
, below will be to this practicality in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used makees a briefly introduction in new embodiment or description of the prior art, it should be apparent that, it is described below
Accompanying drawing is some embodiments of the utility model, for one of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of wired control box in bluetooth earphone of the present utility model；
Fig. 2 is the structure chart of antenna in bluetooth earphone of the present utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Smaller less than one wavelength of pcb board in small Bluetooth earphone, and structure space only has 3mm, this structure space
If according to conventional thinking designing antenna, antenna radiation efficiency can be very low, it is impossible to meets the performance of small Bluetooth earphone.Therefore base
The structure of pcb board and FPC plates in existing small Bluetooth earphone, set and enter in the earthing position between pcb board and FPC plates
Row Antenna Design, to improve antenna efficiency.
The present embodiment is related to a kind of bluetooth earphone, including shell（It is not shown）With the wired control box being arranged in shell, wherein
The present embodiment wired control box is flat, as shown in figure 1, wired control box includes pcb board 103, is laid on the FPC plates of the top of pcb board 103
102 and along shell inside edge lay antenna 100；The distributing point 101 of antenna 100 and the master chip of pcb board 103（It is not shown）
RF output end be connected；The charge connector 104 being connected with its earth point is provided with pcb board 103；Set on FPC plates 102
With its integrally formed ground pad 105；Ground pad 105 contacts with the shell of charge connector 104.In the present embodiment,
The charge connector 104 is USB connector.
Specifically, for the structure in clear visualization wired control box, Fig. 1 shows the wired control box after removing shell, at this
In embodiment, connected between pcb board 103 and FPC plates 102 by connector 106, wherein connector 106 and pcb board 103 are one
Body, but because the impedance of connector 106 is smaller, therefore the earthing position set on connector 106 is difficult to meet bluetooth earphone
Middle antenna performance.In the present embodiment, pcb board 103 and charge connector 104 be integral, charge connector 104 be used for
The interface of charging bluetooth earphone, itself shell are grounded by being connected with the earth point of pcb board 103.In order to realize FPC plates
Grounding connection between 102 and pcb board 103, ground pad 105 contact connection, wherein ground pad with charge connector 104
105 design integrally with FPC plates 102.As shown in figure 1, antenna 100 is laid along shell inside edge, and it is narrow in order to make full use of
Narrow structure space, the shape of antenna 100 are designed to as shown in Figure 2 U-shaped, and U-shaped shape increases antenna length, makes antenna
100 have good omni-directional and high efficiency, and this Antenna Design doubles than traditional antenna design efficiency, can be from design
The upper influence for ensureing the number of people to antenna energy.In the present embodiment, the distributing point 101 of the antenna 100 is inserted in pcb board
The perforation opened up on 103（It is not shown）To be connected with the RF output end of pcb board 103.
Further, in order to ensure adequately grounded, ground pad 105 passes through scolding tin or conducting foam and charge connector
104 shell contact.The size of the present embodiment ground pad 105 is 1mm*2mm.
Further, antenna 100 can be completed using sheet metal, and Billy is with the antenna or chip of LDS laser carving technique laser carvings
Its Wiring technology is simple, reduces antenna manufacturing cost.
The present embodiment bluetooth earphone, charge connector 104 are connected with the earth point of pcb board 103, make whole charge connector
104 earthing of casing, by being provided with the ground pad 105 contacted with the shell of charge connector 104, make full use of FPC plates
Earthing position between 102 and pcb board 103, realize the connection of FPC plates 102 and pcb board 103, the chi of equivalent increase pcb board 103
It is very little, increase the size of earthing position, improve the radiation efficiency of antenna 100 and radio-frequency performance；And antenna 100 is designed to U-shaped day
Line, increase antenna length, make antenna 100 that there is good omni-directional and high efficiency；The antenna 100 can be complete using sheet metal
Into, its simplified manufacturing process, reduction manufacturing cost.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (6)
1. a kind of bluetooth earphone, it is characterised in that including shell and the wired control box being arranged in the shell；The wired control box bag
The FPC plates for include pcb board, being laid on above the pcb board and the antenna laid along the shell inside edge；The feedback of the antenna
Electricity point is connected with the RF output end of the master chip of the pcb board；The charging being connected with its earth point is provided with the pcb board
Connector；Set and its integrally formed ground pad on the FPC plates；The ground pad is outer with the charge connector
Shell contacts.
2. bluetooth earphone according to claim 1, it is characterised in that the ground pad by scolding tin or conducting foam with
The shell contact of the charge connector.
3. bluetooth earphone according to claim 1 or 2, it is characterised in that the antenna is sheet metal.
4. bluetooth earphone according to claim 1 or 2, it is characterised in that the size of the ground pad is 1mm*2mm.
5. bluetooth earphone according to claim 1 or 2, it is characterised in that perforation is offered on the pcb board, it is described
The distributing point of antenna is connected by the perforation with the RF output end of the master chip.
6. bluetooth earphone according to claim 1 or 2, it is characterised in that the shape of the antenna is designed to U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379922.7U CN206640756U (en) | 2017-04-12 | 2017-04-12 | A kind of bluetooth earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379922.7U CN206640756U (en) | 2017-04-12 | 2017-04-12 | A kind of bluetooth earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206640756U true CN206640756U (en) | 2017-11-14 |
Family
ID=60247431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720379922.7U Active CN206640756U (en) | 2017-04-12 | 2017-04-12 | A kind of bluetooth earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206640756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410615A (en) * | 2021-05-26 | 2021-09-17 | 潍坊歌尔电子有限公司 | Drive-by-wire bluetooth headset antenna and bluetooth headset |
-
2017
- 2017-04-12 CN CN201720379922.7U patent/CN206640756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410615A (en) * | 2021-05-26 | 2021-09-17 | 潍坊歌尔电子有限公司 | Drive-by-wire bluetooth headset antenna and bluetooth headset |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |