CN107635166B - Wire control structure and Bluetooth headset - Google Patents
Wire control structure and Bluetooth headset Download PDFInfo
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- CN107635166B CN107635166B CN201710867114.XA CN201710867114A CN107635166B CN 107635166 B CN107635166 B CN 107635166B CN 201710867114 A CN201710867114 A CN 201710867114A CN 107635166 B CN107635166 B CN 107635166B
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- antenna
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- antenna cap
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- 239000003292 glue Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims 3
- 238000009434 installation Methods 0.000 abstract description 3
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- 238000000465 moulding Methods 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000002991 molded plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention discloses a wire control structure which comprises an antenna cap, a metal shell and a flexible circuit board, wherein an antenna coating is arranged on the antenna cap, a circuit board is arranged in the metal shell, and the flexible circuit board is communicated with the antenna coating and the circuit board. The wire control structure of the invention communicates the antenna coating with the circuit board through the high-integration flexible circuit board, meets the design requirements of smaller and higher-density installation and layout, and is also beneficial to reducing the assembly working procedures of the wire control structure and enhancing the reliability.
Description
Technical Field
The present invention relates to electronic devices, and more particularly, to a wire control structure and a bluetooth headset.
Background
At present, electronic products generally adopt metal materials as metal shells of the products because the electronic products have the advantages of attractive appearance, good texture and the like. However, when a metal case cannot be used as an antenna, a plastic cap is often used as an antenna in order to achieve signal transmission in a limited space.
The high density layout of the interior space of the electronic consumer product requires the passage of magnets from the plastic hat antenna to the circuit board, but the middle holes of the magnets are already occupied. In the prior art, a traditional circular coaxial cable is generally adopted to connect an antenna cap and a circuit board; however, in the case where the middle hole of the magnet is occupied, the coaxial cable cannot be disposed in the middle hole of the magnet, so that a space for disposing the coaxial cable is required, and the coaxial cable occupies a lot of internal installation space. Also, in this case, it is generally adopted to reduce the size of the magnet so as to leave more installation space for the coaxial cable.
Thus, the prior art faces the problem of how to connect the antenna cap to the circuit board in a limited area.
Disclosure of Invention
The invention aims to provide a wire control structure and a novel technical scheme of a Bluetooth headset.
According to a first aspect of the present invention, there is provided a wire control structure, including a metal casing, an antenna cap for closing an end of the metal casing, and a flexible circuit board; an antenna coating is arranged on the end face of the antenna cap, a circuit board is arranged in the metal shell, one end of the flexible circuit board is communicated with a feed point on the antenna coating, and the other end of the flexible circuit board extends into the metal shell along the side wall of the metal shell and is communicated with the circuit board.
Optionally, the antenna coating is coated on the outer side of the antenna cap through a laser direct-molding process, the feed point is arranged on the inner side of the antenna cap, and the antenna coating and the feed point are conducted through a conducting hole.
Optionally, a first bonding pad serving as a feeding bonding pad is arranged on the inner side of the antenna cap, the feeding point is formed on the first bonding pad, and the flexible circuit board is connected with the first bonding pad.
Optionally, a second bonding pad is arranged on the inner side of the antenna cap, and the antenna cap fixes the flexible circuit board through the second bonding pad.
Optionally, the first bonding pad and the second bonding pad are both formed by laser direct structuring.
Optionally, the flexible circuit board is flat, a connector is arranged at the end of the flexible circuit board, and the flexible circuit board is communicated with the circuit board through the connector.
Optionally, the via hole is conducted by laser technology.
Optionally, the aperture of the via hole is 0.1mm.
Optionally, a glue spreading area is arranged on the inner side of the antenna cap at the position of the through hole, and the glue spreading area is used for spot-coating glue.
Optionally, a spray coating is arranged on the outer side of the antenna cap, and the spray coating is used for covering the antenna coating.
According to another aspect of the present invention, there is also provided a bluetooth headset including the above-mentioned wire control structure.
The inventor of the present invention has found that in the prior art, the plastic cap has a limited area, and is difficult to be connected with a circuit board as an antenna, so that signal transmission is realized. The technical task to be achieved or the technical problem to be solved by the present invention is therefore a new technical solution, which has never been conceived or not yet been contemplated by the person skilled in the art.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is an exploded structural diagram of a bluetooth headset including a wire control structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic diagram showing a combined state of an antenna cap and a flexible wiring board in the wire control structure of the present invention.
Fig. 4 is a schematic view of an exploded state of an antenna cap and a flexible wiring board in the wire-controlled structure of the present invention.
Fig. 5 is a schematic view of an exploded state of the antenna cap and the flexible circuit board in another view angle in the wire-controlled structure of the present invention.
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, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one 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 specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Referring to fig. 1 to 5, the wire control structure of the present embodiment includes a metal housing 2, an antenna cap 1 for plugging the end of the metal housing 2, and a flexible circuit board 3. Wherein, the antenna cap 1 is provided with an antenna coating 14, the antenna cap 1 can be made of LDS material, and the antenna coating 14 is formed on the end surface of the antenna cap by a laser direct-molding process, so that signals can be received or emitted.
The metal shell 2 is internally provided with a circuit board 4, one end of the flexible circuit board 3 is connected to the feeding position of the antenna coating layer 14, and the other end of the flexible circuit board extends into the metal shell 2 along the side wall of the metal shell 2 and is connected with the circuit board 4.
The laser direct forming process refers to a process of controlling the movement of laser according to the track of a conductive pattern by using a computer. The laser is irradiated onto the molded three-dimensional plastic device and the circuit pattern is activated in a period of several seconds. In short, on the molded plastic support, a metal pattern is directly formed on the support by chemical plating by utilizing a laser technology. And, the laser direct structuring process is particularly suitable for designing and producing antennas, such as mobile phone antennas.
Specifically, on the antenna cap 1, laser engraving and chemical plating are performed by using a laser direct structuring process to form a metal pattern, that is, an antenna coating 14, thereby realizing the present wiring of the antenna cap 1.
It should be noted that the antenna cap 1 may also be formed with the antenna coating 14 by other methods, which is not limited in the present invention.
Among these, flexible wiring boards are also called "flexible boards", and are printed circuits made of flexible insulating substrates. The flexible circuit provides excellent electrical performance, meets the design requirements of smaller and higher density mounting, and also helps reduce assembly processes and enhance reliability. The flexible circuit board can be arranged randomly according to the space layout requirement and can move and stretch randomly in a three-dimensional space, so that the integration of component assembly and wire connection is achieved. The flexible circuit board can greatly reduce the volume and weight of the electronic product, and is suitable for the requirements of the electronic product on high density, miniaturization and high reliability.
Referring to fig. 1 to 5, signals may be transferred between the antenna cap 1 and the circuit board 4. Specifically, the antenna coating 14 formed on the antenna cap 1 serves as an antenna radiator, and can receive or transmit signals. When the antenna coating 14 receives a signal sent by external equipment, the signal can be transmitted to the flexible circuit board 3 by the antenna coating 14 because the flexible circuit board 3 is conducted with a feed point on the antenna cap 1; since the flexible wiring board 3 is connected to the circuit board 4, signals are transmitted to the circuit board 4.
When the circuit board 4 needs the antenna coating 14 to emit signals outwards, the circuit board 4 can transmit the signals to the flexible circuit board 3, the flexible circuit board 3 transmits the signals to the antenna coating 14, and the signals are radiated by the antenna coating 14.
As shown in fig. 2, in the present embodiment, the antenna coating 14 is directly provided on the antenna cap 1, and the antenna coating 14 and the circuit board 4 are communicated with each other by using the highly integrated flexible wiring board 3, compared with the conventional circular coaxial cable used in the prior art, thereby achieving signal transmission. The flexible wiring board 3 can meet the design requirements of smaller and higher density mounting and layout, and also contributes to reduction of the assembly process of the drive-by-wire structure and enhancement of reliability.
Preferably, the flexible wiring board 3 is of a flat structure. The flat flexible circuit board 3 can communicate or conduct the circuit board 4 to the antenna coating 14 only through the mounting gap or the clearance between the metal shell 2 and the circuit board 4, so that the internal space of the wire control structure is further saved, and the high density and high integration on the wire control structure space are realized.
As shown in fig. 3 to 5, the antenna coating 14 is coated on the outside of the antenna cap 1, i.e., on the side of the antenna cap 1 remote from the metal case 2, by a laser direct structuring process. In this way, the antenna coating 14 may not be covered by the metal casing 2, and thus, signal interference of the metal casing 2 to the antenna coating 14 can be reduced.
Further, the feeding point is disposed at the inner side of the antenna cap 1, and the outer side of the antenna cap 1 is communicated with the feeding point through the via hole 11, so that the inner side and the outer side of the antenna coating 14 are both in line conduction. The flexible wiring board 3 is connected at the feeding point, i.e. also inside the antenna cap 1, and the via hole 11 conducts the line of the antenna coating 14 to the inside of the antenna cap 1 so that the flexible wiring board 3 can communicate with the antenna coating 14. Further, the signal received by the antenna cap 1 may be transmitted to the flexible circuit board 3 by the antenna coating 14, and then transmitted to the circuit board 4 by the flexible circuit board 3.
Preferably, the via 11 may be conducted by laser technology. The laser technology has better directionality, and avoids the deflection of the through hole 11 in the Kong Shenfang direction, so that the signal can be conducted from the outer side of the antenna cap 1 to the inner side of the antenna cap more directly.
Preferably, the aperture of the via 11 is 0.1mm, which can transmit signals without affecting the overall appearance.
As shown in fig. 3 to 5, the inner side of the antenna cap 1 is provided with a first land 12 as a feeding land, and a feeding point is formed on the first land 12, mainly for conducting the antenna cap 1 and the flexible wiring board 3, i.e., the antenna cap 1 is electrically connected to the flexible wiring board 3 through the first land 12.
In addition, the mutual positions of the bonding pad, the feeding point and the feeding point can be adjusted to adjust the receiving and transmitting frequencies of the antenna, which is common knowledge of the person skilled in the art and is not specifically described herein.
Further, the inner side of the antenna cap 1 is also provided with a second bonding pad 13, and the second bonding pad 13 is mainly used for fixing the antenna cap 1, that is, the antenna cap 1 fixes the flexible circuit board 3 through the second bonding pad 13. Wherein the second pads 13 may be plural. Also, the second pads 13 may be disposed at intervals along the circumferential direction of the antenna cap 1.
Referring to fig. 5, a first mounting region 32 and a second mounting region 33 are provided on the flexible wiring board 3 at positions corresponding to the first land 12 and the second land 13 on the side to which the antenna cap 1 is connected. The first mounting region 32 and the second mounting region 33 correspond to the first land 12 and the second land 13, thereby completing the assembly between the assembled antenna cap 1 and the flexible wiring board 3.
Preferably, the flexible wiring board 3 is fixed to the antenna cap 1 by thermocompression bonding or laser bonding at the first mounting region 32 and the second mounting region 33.
Preferably, the first and second pads 12 and 13 are each manufactured using a laser direct structuring process, i.e. the first and second pads 12 and 13 are manufactured on the inner side of the antenna cap 1 using a laser direct structuring process. Thus, the first bonding pad 12 and the second bonding pad 13 are wired by the laser direct structuring process, which imparts an electrical interconnection function to facilitate the conduction between the antenna cap 1 and the flexible wiring board 3.
Referring to fig. 2 to 5, the flexible wiring board 3 is provided with a connector. As shown in fig. 2, the flexible circuit board is mated and communicated with the circuit board 4 by a connector 31.
Further, a glue spreading area (not shown in the figure) is provided on the inner side of the antenna cap 1 at the position of the via hole 11, and the glue spreading area is used for spreading glue, i.e. glue can be spread at the position of the via hole 11, so as to improve the waterproof effect.
Preferably, the outer side of the antenna cap 1 may be provided with a spray coating (not shown in the drawings), which may cover the antenna coating 14 to shield the antenna coating 14, optimizing the overall appearance.
The wire control structure of the present invention further includes a magnet 5 mounted in the metal housing 2, and the wire control structure can be magnetically attracted to the charging base through the magnet 5, which will not be described in detail herein. The magnet 5 has a cylindrical shape and can be disposed between the antenna cap 1 and the circuit board 4. The flexible circuit board 3 connected to the antenna cap 1 can be attached to the edge of the magnet 5 and electrically connected to the circuit board 4 at the rear end of the magnet 5.
The wire control structure of the invention can be applied to a Bluetooth headset, and therefore, the invention also provides the Bluetooth headset which comprises the wire control structure and a sound emitting loudspeaker connected with the wire control structure through a wire, and the sound emitting loudspeaker is not specifically described herein.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the 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 (9)
1. The wire control structure is characterized by comprising a metal shell (2), an antenna cap (1) for closing the end head of the metal shell (2) and a flexible circuit board (3); an antenna coating (14) is arranged on the end face of the antenna cap (1), a circuit board (4) is arranged in the metal shell (2), one end of the flexible circuit board (3) is communicated with a feed point on the antenna coating (14), and the other end of the flexible circuit board extends into the metal shell (2) along the side wall of the metal shell (2) and is communicated with the circuit board (4);
the antenna coating (14) is coated on the outer side of the antenna cap (1), the feed point is arranged on the inner side of the antenna cap (1), the antenna coating (14) is conducted with the feed point through the through hole (11), a gluing area is arranged on the inner side of the antenna cap (1) at the position of the through hole (11), the gluing area is used for gluing glue, and the aperture of the through hole (11) is 0.1mm.
2. The wire control structure according to claim 1, characterized in that the antenna coating (14) is applied to the outside of the antenna cap (1) by a laser direct structuring process.
3. The wire control structure according to claim 2, characterized in that a first land (12) is provided as a feeding land on the inner side of the antenna cap (1), the feeding point is formed on the first land (12), and the flexible wiring board (3) is connected to the first land (12).
4. A wire control structure according to claim 3, characterized in that the antenna cap is provided with a second bonding pad (13) on the inside, and the antenna cap (1) secures the flexible circuit board (3) via the second bonding pad (13).
5. The wire control structure according to claim 4, characterized in that the first pad (12) and the second pad (13) are both formed by a laser direct structuring process.
6. The drive-by-wire structure according to any one of claims 1 to 5, wherein the flexible wiring board (3) is flat, and a connector (31) is provided at an end thereof, and the flexible wiring board (3) communicates with the circuit board (4) through the connector (31).
7. The wire control structure according to any of the claims 2 to 5, characterized in that the via (11) is conducted using laser technology.
8. The wire control structure according to any one of claims 1 to 5, characterized in that the outside of the antenna cap (1) is provided with a spray coating for covering the antenna coating.
9. A bluetooth headset comprising a drive-by-wire architecture according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867114.XA CN107635166B (en) | 2017-09-22 | 2017-09-22 | Wire control structure and Bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867114.XA CN107635166B (en) | 2017-09-22 | 2017-09-22 | Wire control structure and Bluetooth headset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107635166A CN107635166A (en) | 2018-01-26 |
| CN107635166B true CN107635166B (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710867114.XA Active CN107635166B (en) | 2017-09-22 | 2017-09-22 | Wire control structure and Bluetooth headset |
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| Country | Link |
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| CN (1) | CN107635166B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191574Y (en) * | 2007-01-06 | 2009-02-04 | 苹果公司 | Press-key construction and apparatus of radio equipment, earphone and electronic apparatus applying the same |
| CN202363574U (en) * | 2011-12-07 | 2012-08-01 | 宝鸡烽火诺信科技有限公司 | Ultra-high-frequency (UHF) broadband antenna |
| CN203339301U (en) * | 2013-06-20 | 2013-12-11 | 深圳市沁音创新科技有限公司 | Capacitive coupling antenna and Bluetooth apparatus employing antenna |
| CN204464441U (en) * | 2015-04-08 | 2015-07-08 | 歌尔声学股份有限公司 | Antenna system |
| CN106486760A (en) * | 2016-09-29 | 2017-03-08 | 努比亚技术有限公司 | A kind of terminal antenna based on metal back cover and terminal |
| CN207304854U (en) * | 2017-09-22 | 2018-05-01 | 歌尔股份有限公司 | Line traffic control structure and bluetooth headset |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8791864B2 (en) * | 2011-01-11 | 2014-07-29 | Apple Inc. | Antenna structures with electrical connections to device housing members |
-
2017
- 2017-09-22 CN CN201710867114.XA patent/CN107635166B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191574Y (en) * | 2007-01-06 | 2009-02-04 | 苹果公司 | Press-key construction and apparatus of radio equipment, earphone and electronic apparatus applying the same |
| CN202363574U (en) * | 2011-12-07 | 2012-08-01 | 宝鸡烽火诺信科技有限公司 | Ultra-high-frequency (UHF) broadband antenna |
| CN203339301U (en) * | 2013-06-20 | 2013-12-11 | 深圳市沁音创新科技有限公司 | Capacitive coupling antenna and Bluetooth apparatus employing antenna |
| CN204464441U (en) * | 2015-04-08 | 2015-07-08 | 歌尔声学股份有限公司 | Antenna system |
| CN106486760A (en) * | 2016-09-29 | 2017-03-08 | 努比亚技术有限公司 | A kind of terminal antenna based on metal back cover and terminal |
| CN207304854U (en) * | 2017-09-22 | 2018-05-01 | 歌尔股份有限公司 | Line traffic control structure and bluetooth headset |
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| Publication number | Publication date |
|---|---|
| CN107635166A (en) | 2018-01-26 |
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