CN206098950U - Electronic device - Google Patents
Electronic device Download PDFInfo
- Publication number
- CN206098950U CN206098950U CN201621111604.4U CN201621111604U CN206098950U CN 206098950 U CN206098950 U CN 206098950U CN 201621111604 U CN201621111604 U CN 201621111604U CN 206098950 U CN206098950 U CN 206098950U
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- CN
- China
- Prior art keywords
- mainboard
- radome
- usb interface
- daughter board
- electronic equipment
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides an electronic device, include: the mainboard, the USB interface sets up on the mainboard, the daughter board sets up on the mainboard, the shield cover for cover one of the at least part or whole in USB interface and the daughter board. Through the utility model discloses, solve the interference problem of USB interface to radio frequency and antenna etc. And then reached the effect that reduces the interference when using the USB interface.
Description
Technical field
This utility model is related to electronic device field, in particular to a kind of electronic equipment.
Background technology
USB (universal serial bus) (Universal Serial Bus, USB) is to be widely used in PC periphery product at present
A kind of hot plug transmission interface of product, the interface links in the case where turning back on hardware carries out data biography
Defeated, with the good characteristic of transmission performance, first generation USB1.1 transmission interface is pushed away when 1988, and Intel then delivers within 2000
The formal specification of USB2.0, also extending can use the computer peripheral product category of USB transmission interface whereby, such as mobile hard
Disk, printer, Genius mouse etc..
But as the required archives capacity being transmitted day by day increases, the transmission speed of USB2.0 controls chip because being limited to
And a variety of factors and start that demand when using can not be met, therefore also promote the release of USB3.0 of new generation, USB3.0 is removed
The structure of the past and the characteristic of plug and play are maintained, more application PC, consumer electronic goods and shifting is extended to into
In the synchronous instantaneous transmission of dynamic device, more the 10 of USB2.0 times of its transmission speed, and there is low-power consumption.Samsung
Galaxy Note 3 have been listed using the mobile phone of USB3.0 interfaces as first and speed is leading.Theoretically, USB
3.0 standards are faster than 2.0 10 times, so the time that mobile file is consumed should be greatly decreased than the past.Through test,
USB 3.0 brings out and out lifting to the file transfer speed of Galaxy Note 3 really.Wherein the most significantly carry
When liter is transmission large volume file, such as the video that film or mobile phone are recorded.When open 3.0 patterns of USB after, from PC to
Galaxy Note 3 replicate such file speed and accelerate 2.4 times.
But USB3.0 is when in use, interference can be produced to 2.4G wireless devices, therefore USB 3.0 does not have on mobile phone
Acquiescence is opened, and when the pattern is opened, system can show that " may interfere to call and data when using " carries
Show, USB3.0 can produce interference to radio frequency and antenna, and USB3.0 when in use, can making an uproar in 2.4G frequency ranges increase about 20dB
Sound, it is sufficient to disturb normally using for wireless device.In fact, the spread processing of USB3.0 cause its frequency spectrum from 0Hz cover always to
5GHz, in 2.4G frequency ranges -60dBm is there are about, and has -90dBm to 5G frequency ranges.
USB3.0 has become the standard for currently using USB, in order to solve USB3.0 interference problems, one kind of the prior art
Scheme is to use extended line, allow 2.4G receptors from USB3.0 joints more away from it is better, in a particular application, 2.4G receptors away from
Interference when one meter from USB3.0 joints or so can not affect normal communication, but be to increase the mode of extended line and be not appropriate for
Using in the product.
For technical problem of the USB interface in prior art to the interference of radio frequency and antenna etc., not yet propose have at present
The solution of effect.
Utility model content
This utility model embodiment provides a kind of electronic equipment, at least to solve in correlation technique USB interface to radio frequency
And the interference problem of antenna etc..
According to one embodiment of the present utility model, there is provided a kind of electronic equipment, including：
Mainboard；
USB interface, is arranged on the mainboard；
Daughter board, is arranged on the mainboard；
Radome, for covering the part or all of of at least one of the USB interface and the daughter board.
Alternatively, the radome includes at least one of：
First radome, is arranged on the mainboard, for covering the circuit part of the USB interface；
Secondary shielding cover, is arranged on the mainboard, at least covering the daughter board in module, wherein, the module
Including：By the module that the circuit part of the USB interface is disturbed, and/or, disturb the mould of the circuit part of the USB interface
Block.
Alternatively, first radome is list structure, and first radome forms one and houses with the mainboard
Space, the space is used to house the circuit part of the USB interface.
Alternatively, the circuit part of the USB interface is arranged on one end of the list structure, the list structure it is another
One end is jagged away from the side of the mainboard.
Alternatively, the breach is rectangle.
Alternatively, the secondary shielding cover includes the first master for being arranged on the daughter board bottom surface and being fixed on the mainboard
Plate radome, the second mainboard radome for being arranged on the daughter board surface and positioned at the first mainboard radome and described
Shielded rack between two mainboard radomes, the shielded rack is fixed on the mainboard, and the second mainboard radome passes through institute
State the surface that shielded rack is fixed on the daughter board.
Alternatively, the shielded rack includes a transverse slat, and a bracing frame piece is stretched out at the transverse slat two ends, each described
A prominent pin is stretched out in the end of support piece, and the shielded rack is fixed on the mainboard by the pin.
Alternatively, convex closure is provided with the outside of each support frame as described above piece, on the second mainboard radome with it is described
The corresponding position of pin is provided with recess or hole to accommodate the convex closure.
Alternatively, the first mainboard radome and the daughter board buckle connection by way of buckle.
Alternatively, the first mainboard radome is attached on the mainboard by conducting resinl.
Alternatively, the electronic equipment, also includes being all connected with first radome and the second mainboard radome
For dredge electromagnetism lead ground connector.
Alternatively, the USB interface is the interface for meeting USB3.0 standards.
By this utility model, radome is covered at least one of USB interface and the daughter board being arranged on mainboard,
Radome is covered at USB interface, electromagnetic isolation protection can be carried out to USB interface, it is to avoid the interference of USB interface and done
Disturb, radome is covered on daughter board, electromagnetic leakage can be avoided, therefore, it can solve USB interface to radio frequency and antenna etc.
Interference problem, and then reached using the effect that interference is reduced during USB interface.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain this utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the overall structure figure according to this utility model alternative embodiment electronic equipment；
Fig. 2 is the structure chart according to this utility model alternative embodiment USB interface；
Fig. 3 is the structure chart according to this utility model alternative embodiment daughter board；
Fig. 4 is the structure chart according to the radome of this utility model alternative embodiment first；
Fig. 5 is the position assumption diagram according to this utility model alternative embodiment USB interface and the first radome；
Fig. 6 is the overall structure figure according to this utility model alternative embodiment secondary shielding cover；
Fig. 7 is the fractionation structure chart according to this utility model alternative embodiment secondary shielding cover；
Fig. 8 is the structure chart according to this utility model alternative embodiment the first mainboard radome；
Fig. 9 is the second mainboard shielding case structure figure according to this utility model alternative embodiment；
Figure 10 is the structure chart according to this utility model alternative embodiment shielded rack；
Figure 11 is the structure chart of the connector according to this utility model alternative embodiment；
Figure 12 is the attachment structure of the first radome according to this utility model alternative embodiment and the second mainboard radome
Figure.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing this utility model in detail.It should be noted that not rushing
In the case of prominent, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that specification and claims of the present utility model and the term " first " in above-mentioned accompanying drawing,
" second " etc. is the object for distinguishing similar, without being used to describe specific order or precedence.
According to embodiment of the present utility model, there is provided the embodiment of a kind of electronic equipment, Fig. 1 is the entirety of electronic equipment
Structure chart, as shown in figure 1, electronic equipment of the present utility model includes mainboard 1, USB interface 2, daughter board 3 and radome 4, USB connects
The structure chart of mouth 2 and daughter board 3 is respectively as shown in Figures 2 and 3；Wherein, USB interface 2 and daughter board 3 are arranged on mainboard 1；USB
Interface 2 can welding by way of be fixed on mainboard 1, radome 4 be used for cover in USB interface 2 and daughter board 3 at least it
One it is part or all of.It should be noted that daughter board of the present utility model 3 includes the various functions module being arranged on mainboard 1
And/or be arranged on mainboard 1 for placing circuit board of functional module etc..
As a kind of optional embodiment, as shown in figure 1, radome 4 includes at least one of：The He of first radome 40
Secondary shielding cover 41, wherein the first radome 40 is arranged on mainboard 1, for covering the circuit part of USB interface 2；Second screen
Cover cover 41 to be similarly disposed on mainboard 1, at least covering daughter board 3 in module, it should be noted that the mould in this utility model
Block at least includes the module for being subject to the circuit part of USB interface 2 to disturb, and/or, disturb the mould of the circuit part of USB interface 2
Block.
Specifically, the first radome 40 is covered at USB interface 2, electromagnetic isolation protection can be carried out to USB interface 2, kept away
Exempt from the interference of USB interface 2 and disturbed, it should be noted that because circuit part only related in USB interface 2 can radio frequency
And antenna etc. produces interference, and USB interface 2 also includes other parts except circuit part, and other parts can't be to penetrating
Frequency and antenna etc. produce interference, therefore and whole USB interface 2 need not be covered, it is only necessary to the circuit to USB interface 2
Part to be covered just can reach avoids the interference of USB interface 2 and disturbed purpose.By covering the second screen on daughter board 3
Cover 41 is covered, can further avoid disturbed, and electromagnetic leakage can be avoided, it should be noted that the daughter board 3 on mainboard 1
Including various functions module, there are some modules to produce electromagnetic leakage, be also not easily disturbed, therefore secondary shielding cover
41 only need to cover the module disturbed by the circuit part of USB interface 2, and/or, disturb the mould of the circuit part of USB interface 2
Block.
Used as a kind of optional embodiment, be arranged on the first radome 40 on mainboard 1 can be to be consolidated by the way of welding
It is scheduled on mainboard 1, it should be noted that the mode that the first radome 40 is fixed on mainboard 1 is not limited in welding, for example,
The first radome 40 can also be fixed on mainboard 1 using screw, or pin is set at the two ends of the first radome 40
416, it is fixed on mainboard 1 by pin 416.
Used as a kind of optional embodiment, Fig. 4 is the structure chart of the first radome, as shown in figure 4, the first radome 40
Shape can be list structure, it should be noted that the structure of the first radome 40 is not limited in list structure, as long as can
Realization makes the first radome 40 form an accommodation space to house the circuit part of USB interface 2 with mainboard 1.
Used as a kind of optional embodiment, Fig. 5 is the position assumption diagram of the radome 40 of USB interface 2 and first, such as Fig. 5 institutes
Show, if the first radome 40 is shaped as list structure, the circuit part of USB interface 2 can be arranged on the one of list structure
End, the length of the first radome 40 could be arranged to the width of the circuit part more than USB interface 2；In order to reduce the shadow of interference
Ring and improve communication quality, as shown in Figure 4 and Figure 5, list structure does not house the other end of USB interface 2 and can arrange one
Individual breach 401, specifically, breach 401 can be arranged far from the side of mainboard 1, and the wherein shape of breach 401 can be square
Shape.
Used as a kind of optional embodiment, Fig. 6 is the overall structure figure of secondary shielding cover 41, and Fig. 7 is secondary shielding cover 41
Fractionation structure chart, as shown in Fig. 6 and Fig. 7, secondary shielding cover 41 can include three parts, respectively the first mainboard shielding
The 411, second mainboard radome 412 of cover and shielded rack 413；First mainboard radome 411 is arranged on the bottom surface of daughter board 3 and is fixed on master
On plate 1, the second mainboard radome 412 is arranged on the surface of daughter board 3, and shielded rack 413 is located at the first mainboard radome 411 and the second master
Between plate radome 412.First mainboard radome 411 and the second mainboard radome 412 can daughter board 3 completely cover
Come, electromagnetic leakage and electromagnetic interference are placed, wherein the first mainboard radome 411, the second mainboard radome 412 and shielded rack
413 structure chart is respectively as shown in Fig. 8, Fig. 9 and Figure 10.
Specifically, the first mainboard radome 411 can be fixed on mainboard 1 by way of conducting resinl is attached on mainboard 1
On, the position of daughter board 3 is further secured, effectively prevent the movement of the position of daughter board 3；Shielded rack 413 is fixed on mainboard 1, the
Two mainboard radomes 412 are fixed on the surface of daughter board 3 by shielded rack 413, will not change in the position of shielded rack 413
In the case of, the position of the second mainboard radome 412 also will not change.
Used as a kind of optional embodiment, as shown in Figure 10, the principal shape of shielded rack 413 can be the shape of falling Qian shape,
Specially include a transverse slat 414, at the two ends of transverse slat 414 a bracing frame piece 415 stretched out, wherein, bracing frame piece 415 with it is horizontal
Plate 414 is angled, and bracing frame piece 415 can be perpendicular to transverse slat 414, it is also possible to form the angle more than 90 degree with transverse slat 414
Degree, because the second mainboard radome 412 is required to cover the surface of daughter board 3, and the second mainboard radome 412 needs to pass through
Shielded rack 413 is being fixed on the upper surface of daughter board 3, therefore the length of transverse slat 414 needs the width more than daughter board 3, preferably
The length of transverse slat 414 is slightly larger than the width of daughter board 3, and the position of transverse slat 414 can be arranged on directly over the upper surface of daughter board 3,
Other positions near daughter board 3 can be arranged on mainboard 1, as long as the mesh for supporting the second mainboard radome 412 can be played
；A prominent pin 416 is stretched out in the end of each bracing frame piece 415, and shielded rack 413 passes through pin 416
It is fixed on mainboard 1.
Used as a kind of optional embodiment, the outside of each bracing frame piece 415 is provided with convex closure 417, the second mainboard screen
Cover and be provided with recess or hole to accommodate convex closure 417, the mainboard of shielded rack 413 and second with the corresponding position of pin 416 on cover 412
Just by convex closure 417 position of the second mainboard radome 412 can be consolidated with the clamping in recess or hole between radome 412
It is fixed.
Used as a kind of optional embodiment, the first mainboard radome 411 and daughter board 3 buckle connection by way of buckle,
Specifically, can daughter board 3 side arrange at least one projecting member, the first mainboard radome 411 side arrange with
The equal number of hole clipping of projecting member is used for accommodating projecting member, to reach the purpose of fixed further fixed daughter board 3；Equally
, it is also possible to the first mainboard radome 411 side arrange at least one projecting member, daughter board 3 side arrange with it is convex
Go out the equal number of hole clipping of part for accommodating projecting member, can equally reach the purpose of fixed further fixed daughter board 3.
Used as a kind of optional embodiment, electronic equipment of the present utility model also includes and the first radome 40 and the second master
Plate radome 412 be all connected with for dredge electromagnetism lead ground connector 418, wherein, Figure 11 for connector structure chart, Figure 11
For the structure chart of connector, Figure 12 is the structure that the first radome 40 and the second mainboard radome 412 are connected by connector 418
The electromagnetism that USB interface 2 and daughter board 3 are revealed can be led ground by figure, connector 418, further reduce the impact of electromagnetic interference.
As a kind of optional embodiment, in view of the performance of 10 times faster than USB2.0 of the transfer rate of USB3.0, now logical
What USB interface 2 was generally used is all USB3.0 standards, and because USB3.0 standards are more held compared to other USB standards
Interference is easily produced to communication, therefore the USB interface 2 in this utility model is preferably the interface for meeting USB3.0 standards, needs
It is bright, because the standards such as USB1.0 or USB2. also can produce interference to communication, simply disturb little compared to USB3.0,
Therefore the USB interface 2 in electronic equipment of the present utility model can also be the interface for meeting the standards such as USB1.0 or USB2.,
Using electronic equipment of the present utility model, the interference of USB interface 2 can be significantly reduced.
Used as a kind of optional embodiment, electronic equipment of the present utility model can be particularly applicable in MF251 and UFI tools
Body is that specifically, the mainboard 1 in this utility model can be MF251PCBA in vehicle-mounted UFI projects.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (12)
1. a kind of electronic equipment, it is characterised in that include：
Mainboard (1)；
USB interface (2), is arranged on the mainboard (1)；
Daughter board (3), is arranged on the mainboard (1)；
Radome (4), for covering the part or all of of at least one of the USB interface (2) and the daughter board (3).
2. electronic equipment according to claim 1, it is characterised in that the radome (4) is including at least one of：
First radome (40), is arranged on the mainboard (1), for covering the circuit part of the USB interface (2)；
Secondary shielding cover (41), is arranged on the mainboard (1), at least covering the daughter board (3) in module, wherein, institute
Stating module includes：By the module that the circuit part of the USB interface (2) is disturbed, and/or, disturb the USB interface (2)
The module of circuit part.
3. electronic equipment according to claim 2, it is characterised in that first radome (40) is list structure, institute
State the first radome (40) and form an accommodation space with the mainboard (1), the space is used to house the USB interface (2)
Circuit part.
4. electronic equipment according to claim 3, it is characterised in that the circuit part of the USB interface (2) is arranged on institute
State one end of list structure, the side jagged (401) of the other end of the list structure away from the mainboard (1).
5. electronic equipment according to claim 4, it is characterised in that the breach (401) is rectangle.
6. electronic equipment according to claim 2, the secondary shielding cover (41) is including being arranged on the daughter board (3) bottom surface
And the first mainboard radome (411) being fixed on the mainboard (1), the second mainboard for being arranged on the daughter board (3) surface
Radome (412) and the shielding between the first mainboard radome (411) and the second mainboard radome (412)
Frame (413), the shielded rack (413) is fixed on the mainboard (1), and the second mainboard radome (412) is by the screen
Cover the surface that frame (413) is fixed on the daughter board (3).
7. electronic equipment according to claim 6, the shielded rack (413) is including a transverse slat (414), the transverse slat
(414) a bracing frame piece (415) is stretched out at two ends, the end of each support frame as described above piece (415) stretch out one it is prominent
Pin (416), the shielded rack (413) is fixed on the mainboard (1) by the pin (416).
8. electronic equipment according to claim 7, on the outside of each support frame as described above piece (415) convex closure is provided with
(417), position corresponding with the convex closure (417) is provided with and recess or Kong Yirong on the second mainboard radome (412)
Receive the convex closure (417).
9. electronic equipment according to claim 6, the first mainboard radome (411) and the daughter board (3) are by card
The mode of button buckles connection.
10. electronic equipment according to claim 6, the first mainboard radome (411) is attached to described by conducting resinl
On mainboard (1).
11. electronic equipments according to claim 6, also include and first radome (40) and the second mainboard screen
Cover that cover (412) is all connected with for dredging the connector (418) that electromagnetism leads ground.
12. electronic equipments according to any one of claim 2-11, the USB interface (2) is to meet USB3.0 standards
Interface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111604.4U CN206098950U (en) | 2016-10-10 | 2016-10-10 | Electronic device |
| PCT/CN2017/101946 WO2018068608A1 (en) | 2016-10-10 | 2017-09-15 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111604.4U CN206098950U (en) | 2016-10-10 | 2016-10-10 | Electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098950U true CN206098950U (en) | 2017-04-12 |
Family
ID=60413547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621111604.4U Active CN206098950U (en) | 2016-10-10 | 2016-10-10 | Electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206098950U (en) |
| WO (1) | WO2018068608A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106982275A (en) * | 2017-04-13 | 2017-07-25 | 广东欧珀移动通信有限公司 | Barrier assembly and mobile terminal |
| WO2018068608A1 (en) * | 2016-10-10 | 2018-04-19 | 中兴通讯股份有限公司 | Electronic device |
| CN112491483A (en) * | 2019-09-12 | 2021-03-12 | 中兴通讯股份有限公司 | USB signal shielding device and network terminal |
| CN113727593A (en) * | 2021-08-16 | 2021-11-30 | 北京超星未来科技有限公司 | Electromagnetic shielding device of electronic equipment and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003213734A1 (en) * | 2002-03-06 | 2003-09-22 | Tyco Electronics Corporation | Receptacle assembly having shielded receptacle connector interface with pluggable electronic module |
| CN2759007Y (en) * | 2004-11-17 | 2006-02-15 | 南晔科技股份有限公司 | Card reader of connector with grounding structure |
| CN101114745A (en) * | 2006-07-28 | 2008-01-30 | 佛山市顺德区顺达电脑厂有限公司 | Electromagnetic shielding structure of electric connector |
| CN201509392U (en) * | 2009-10-15 | 2010-06-16 | 北京普源精电科技有限公司 | Electronic module shielding case |
| CN201690481U (en) * | 2009-11-23 | 2010-12-29 | 英业达股份有限公司 | Wireless communication device |
| CN206098950U (en) * | 2016-10-10 | 2017-04-12 | 中兴通讯股份有限公司 | Electronic device |
-
2016
- 2016-10-10 CN CN201621111604.4U patent/CN206098950U/en active Active
-
2017
- 2017-09-15 WO PCT/CN2017/101946 patent/WO2018068608A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068608A1 (en) * | 2016-10-10 | 2018-04-19 | 中兴通讯股份有限公司 | Electronic device |
| CN106982275A (en) * | 2017-04-13 | 2017-07-25 | 广东欧珀移动通信有限公司 | Barrier assembly and mobile terminal |
| CN112491483A (en) * | 2019-09-12 | 2021-03-12 | 中兴通讯股份有限公司 | USB signal shielding device and network terminal |
| WO2021047428A1 (en) * | 2019-09-12 | 2021-03-18 | 中兴通讯股份有限公司 | Usb signal shielding device and network terminal |
| CN113727593A (en) * | 2021-08-16 | 2021-11-30 | 北京超星未来科技有限公司 | Electromagnetic shielding device of electronic equipment and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018068608A1 (en) | 2018-04-19 |
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