CN102869187B - PCB and connected USB plug and USB device - Google Patents

PCB and connected USB plug and USB device Download PDF

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Publication number
CN102869187B
CN102869187B CN201210345502.9A CN201210345502A CN102869187B CN 102869187 B CN102869187 B CN 102869187B CN 201210345502 A CN201210345502 A CN 201210345502A CN 102869187 B CN102869187 B CN 102869187B
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China
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pcb
usb
electric capacity
usb plug
metal
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CN201210345502.9A
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CN102869187A (en
Inventor
杨兆良
徐慧梁
朱胜
潘光胜
屠东兴
王定杰
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Huawei Device Co Ltd
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Priority to CN201210345502.9A priority Critical patent/CN102869187B/en
Priority to CN2010105907318A priority patent/CN102176576A/en
Publication of CN102869187A publication Critical patent/CN102869187A/en
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Abstract

The embodiment of the present invention provides a kind of PCB and connected USB plug and USB device.A kind of PCB, it is characterised in that including: suppression circuit, for suppressing the harmonic wave of USB data transmission.A kind of USB plug being connected with PCB includes metal covering, wherein, on described metal covering, the shell fragment position corresponding to socket is provided with impermeable metal part so that described USB plug inserts described shell fragment and described impermeable metal part contact after described socket.The embodiment of the present invention can reduce interference.

Description

PCB and connected USB plug and USB device
Technical field
The present embodiments relate to terminal technology, particularly relate to a kind of PCB and connected USB plug and USB device.
Background technology
Wireless terminal product, through development for many years, has defined form miscellaneous the most, as mobile phone, data card, Palm intelligent machine etc..Having a universal form in these various forms of products is that it typically can leave interface and computer leads to Letter, most popular is USB (universal serial bus) (Universal Serial Bus, USB).Particularly for data card, its Rely primarily on computer power supply, and exchange data with computer, it is achieved data card is powered and the interface USB just of data interaction Mouthful.
Fig. 1 is the structural representation of existing USB plug, sees Fig. 1, and the upper and lower surfaces of USB plug have two respectively Through hole 11, four shell fragments in the respective socket respectively of the position of these four through holes 11, when USB plug is connected with socket, due to Four shell fragments of socket top and bottom are just stuck on four holes of plug so that plug is insufficient with the connection of socket.Keeping When USB normally inserts, it can be ensured that two shell fragments contacting only side of plug and socket.The two contact is high in data To be easy to occur the phenomenon of port during speed transmission, and, due to insufficient contact, contact impedance can be produced, at high speed number Produce abundant interference signal during the transmission of word signal, affect the normal work of communication system.
During it addition, USB plug connects with printed circuit board (Printed Circuit Board, PCB), it is by USB plug On straight cutting leg 12 insert in the jack on PCB.See Fig. 1, exist recessed between side housing and the straight cutting leg of USB plug Groove 13, due to the existence of this groove 13 so that USB plug can not be fully contacted PCB.Further, existing USB plug connects with PCB The face touched, sees the contact surface 14 in Fig. 1 and contact surface 15, and these contact surfaces are plastics, and this also makes the USB plug can not be with PCB good contact.
The above-mentioned design of existing USB plug can make USB plug can not be fully contacted socket and/or PCB, can produce contact Impedance, produces interference when high-speed digital signal transmits, and affects the normal work of system.
Summary of the invention
The embodiment of the present invention provides a kind of PCB and connected USB plug and USB device, when reducing USB data transmission Interference, improve systematic function.
On the one hand, embodiments provide a kind of PCB, including suppression circuit, humorous for USB data transmission Ripple suppresses.
On the other hand, embodiments provide a kind of USB plug being connected with PCB, including straight cutting leg, wherein, Described USB plug meets at least one in following condition: with the metal that the straight cutting leg in described USB plug is positioned at the same side Housing completely attaches to described PCB when described USB plug is connected with PCB;The face contacted with described PCB in described USB plug For metal.
As shown from the above technical solution, the PCB of the embodiment of the present invention and connected USB plug and USB device, pass through Metal covering arranges impermeable metal part instead through-holes, so that USB plug is fully connected with socket, reduces dry Disturb;By the groove part of the metal shell being positioned at the same side with described straight cutting leg is extended so that insert with described USB Straight cutting leg on head is positioned at the metal shell of the same side and completely attaches to described PCB when described USB plug is connected with PCB, The adequacy that contacts of USB plug and PCB can be improved, reduce interference;By the contact surface with PCB is set to metal, it is possible to To improve adequacy, reduce interference;By arranging suppression circuit in the pcb, interference can be suppressed.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing USB plug;
Fig. 2 is the USB plug structural representation of first embodiment of the invention;
Fig. 3 is the USB plug structural representation of second embodiment of the invention;
Fig. 4 is the PCB construction schematic diagram of third embodiment of the invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Fig. 2 is the USB plug structural representation of first embodiment of the invention, and Fig. 3 is that the USB of second embodiment of the invention inserts Header structure schematic diagram, both view directions are different.
Seeing Fig. 2 or Fig. 3, in order to improve the contact of USB plug and socket, the embodiment of the present invention provides following technology Scheme:
This USB plug includes metal covering, and the shell fragment position corresponding to socket on described metal covering is provided with obstructed Saturating metal part 4 so that after described USB plug inserts described socket, described shell fragment connects with described impermeable metal part 4 Touch.
Further, in order to avoid the deformation of the shell fragment on socket is excessive, this impermeable metal part 4 can be arranged For metal female.
That is, see Fig. 1, prior art is arranged in the shell fragment position corresponding to socket for through hole 11, and through hole is not Can guarantee that USB plug is fully contacted with socket.In order to improve the contact of USB plug and socket, the present embodiment leading to script Hole metal blocks, i.e. see Fig. 2 or 3, and the present embodiment is provided that metal part at original lead to the hole site, it is achieved that USB plug and the good contact of socket.In order to avoid the deformation of shell fragment is excessive, improving the service life of socket, the present embodiment can To be arranged to shorter than the metal covering of surrounding by this metal part 4, i.e. it is arranged to concave shape.
The present embodiment is by being arranged to metal part, so that USB plug is abundant with socket by throughhole portions originally Contact, it is to avoid the interference problem that loose contact causes.
Seeing Fig. 2 or Fig. 3, in order to improve the contact of USB plug and PCB, the embodiment of the present invention provides following technology Scheme:
This USB plug meets at least one in following condition: with the metal shell that described straight cutting leg is positioned at the same side Completely attach to described PCB when described USB plug is connected with PCB;The face contacted with described PCB in described USB plug is gold Belong to.
Specifically, see Fig. 1, prior art is positioned on the metal shell of the same side with straight cutting leg in USB plug and deposits At a groove 13, due to the existence of this groove so that USB plug can not fully be connected with PCB.The present embodiment so that USB plug is fully connected with PCB, is extended by the metal of the position of groove 13 originally so that this metal shell is at described USB Completely attach to described PCB when plug is connected with PCB.That is, Fig. 2 or 3 is seen, being carried out by groove part originally of the present embodiment Prolonged treatment so that the height of the metal shell 1 of groove part is complete with described PCB when described USB plug is connected with PCB originally Full connected, for example, with reference to Fig. 1, the height of the little plastics in the inner of height of groove part 13 originally;And the embodiment of the present invention In, seeing Fig. 2 or 3, groove part 1 is extended, height waits the height of plastics in the inner, so in USB plug with PCB even Can completely attach to PCB when connecing.
Furthermore, contact surface originally can be set to metal by the present embodiment, i.e. sees Fig. 2, by USB plug with PCB Contact surface 2 and contact surface 3 be set to metal covering.
The present embodiment is by extending groove part originally, and/or contact surface is arranged to metal covering, so that USB plug is fully contacted with PCB, it is to avoid the interference problem that loose contact causes.
The above-mentioned scene being respectively directed in socket and PCB connect is described, it is to be understood that to USB plug Improvement can be in conjunction with above two scene.
Above-mentioned design can improve contacting of USB plug and socket or PCB.In order to improve interference further, permissible Suppression circuit is set in the pcb.
Fig. 4 is the PCB construction schematic diagram of third embodiment of the invention, sees Fig. 4, and the PCB of the present embodiment includes suppression Circuit, for suppressing the harmonic wave of USB data transmission.
Seeing Fig. 4, the voltage of USB plug input PCB includes D+ and D-(shown on the left of Fig. 4), in prior art, this D+ and The element that D-is supplied directly on PCB uses (shown on the right side of Fig. 4).The present embodiment, in order to suppress interference, adds as shown in Figure 4 The suppression circuit being made up of electric capacity and inductance.
When the data of USB2.0 can be transmitted by the suppression circuit in the present embodiment, the harmonic wave of 960MHz suppresses, and reduces The radiation of USB interference signal.
Specifically, seeing Fig. 4, the suppression circuit of the present embodiment includes being connected to and the first voltage (D of USB plug input +) the first electric capacity 41 and the first inductance 42 on corresponding pressure-wire, this first electric capacity 41 and the first inductance 42 are in parallel;It is connected to Second electric capacity 43 and second inductance 44 pressure-wire on corresponding with second voltage (D-) of USB plug input, this second electric capacity 43 and second inductance 44 in parallel.First electric capacity 41 of this parallel connection and one end of the first inductance 42 are connected with the 3rd electric capacity 45, and this is years old One end of three electric capacity 45 is connected on the pressure-wire corresponding with the first voltage, other end ground connection;First electric capacity 41 He of this parallel connection The other end of the first inductance 42 is as the input of the first voltage needed for element on PCB.Second electric capacity 43 and second of this parallel connection One end of inductance 44 is connected with the 4th electric capacity 46, and one end of the 4th electric capacity 46 is connected to the pressure-wire corresponding with the second voltage On, other end ground connection;Second electric capacity 43 of this parallel connection and the other end of the second inductance 44 are as the second voltage needed for element on PCB Input.
The present embodiment, by arranging suppression circuit, can carry out trap process to interference signal, filter out interference signal, carry The reliability of high system.
USB device is obtained it is understood that above-mentioned USB plug can be welded on PCB, wherein, this USB plug Can be for the USB plug shown in Fig. 2 or 3, this PCB can be for the PCB shown in Fig. 4.This USB device can be data card, flash disk Deng.
It is understood that the correlated characteristic in said method and equipment can mutually reference.It addition, in above-described embodiment " first ", " second " etc. be for distinguishing each embodiment, and do not represent the quality of each embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit;Although With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent; And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (5)

1. the PCB being connected with USB, it is characterised in that including:
Suppression circuit, for suppressing the harmonic wave of USB data transmission;
Described suppression circuit includes:
It is connected to and the first electric capacity on the pressure-wire corresponding to the first voltage of USB plug input and the first inductance, described first Electric capacity and the first inductance in parallel;
It is connected to and the second electric capacity on the pressure-wire corresponding to the second voltage of USB plug input and the second inductance, described second Electric capacity and the second inductance in parallel;
First electric capacity of described parallel connection and one end of the first inductance are connected with the 3rd electric capacity, and one end of described 3rd electric capacity is connected to On the pressure-wire corresponding with the first voltage, other end ground connection;First electric capacity of described parallel connection and the other end conduct of the first inductance The input of the first voltage needed for the upper element of PCB;
Second electric capacity of described parallel connection and one end of the second inductance are connected with the 4th electric capacity, and one end of described 4th electric capacity is connected to On the pressure-wire corresponding with the second voltage, other end ground connection;Second electric capacity of described parallel connection and the other end conduct of the second inductance The input of the second voltage needed for the upper element of PCB.
2. a USB device, it is characterised in that include that the PCB as claimed in claim 1 and USB being connected with described PCB inserts Head, described USB plug is welded on the pcb;Described USB plug meets at least one in following condition:
Completely attach to described PCB when described USB plug is connected with PCB with the metal shell that straight cutting leg is positioned at the same side;
The face contacted with PCB in described USB plug is metal.
USB device the most according to claim 2, described USB plug also includes metal covering, it is characterised in that
On described metal covering, the shell fragment position corresponding to socket is provided with impermeable metal part so that described USB inserts Head inserts described shell fragment and described impermeable metal part contact after described socket.
USB device the most according to claim 3, it is characterised in that described impermeable metal part is metal depressed part Point.
USB device the most according to claim 2, it is characterised in that described equipment is data card or flash disk.
CN201210345502.9A 2010-12-03 2010-12-03 PCB and connected USB plug and USB device Active CN102869187B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210345502.9A CN102869187B (en) 2010-12-03 2010-12-03 PCB and connected USB plug and USB device
CN2010105907318A CN102176576A (en) 2010-12-03 2010-12-03 Universal serial bus (USB) plug, printed circuit board (PCB) connected with same and USB equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210345502.9A CN102869187B (en) 2010-12-03 2010-12-03 PCB and connected USB plug and USB device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN2010105907318A Division CN102176576A (en) 2010-12-03 2010-12-03 Universal serial bus (USB) plug, printed circuit board (PCB) connected with same and USB equipment

Publications (2)

Publication Number Publication Date
CN102869187A CN102869187A (en) 2013-01-09
CN102869187B true CN102869187B (en) 2016-08-10

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106339346A (en) * 2015-07-06 2017-01-18 西安中兴新软件有限责任公司 Universal Serial Bus (USB) port signal interference inhibition method and device
JP6615578B2 (en) * 2015-10-29 2019-12-04 日本圧着端子製造株式会社 Electrical connector
CN108957168A (en) * 2018-05-22 2018-12-07 南昌华勤电子科技有限公司 Usb circuit and electronic equipment comprising it

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2662334Y (en) * 2003-12-05 2004-12-08 凌志坚 Data line adapter
CN201629421U (en) * 2010-04-20 2010-11-10 华为终端有限公司 USB plug, USB connection structure and wireless terminal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2662334Y (en) * 2003-12-05 2004-12-08 凌志坚 Data line adapter
CN201629421U (en) * 2010-04-20 2010-11-10 华为终端有限公司 USB plug, USB connection structure and wireless terminal

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Address after: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong.

Patentee after: Huawei Terminal (Shenzhen) Co., Ltd.

Address before: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong.

Patentee before: Huawei Device Co., Ltd.

TR01 Transfer of patent right

Effective date of registration: 20181224

Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province

Patentee after: Huawei Device Co., Ltd.

Address before: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong.

Patentee before: Huawei Terminal (Shenzhen) Co., Ltd.

TR01 Transfer of patent right