CN102869187A - Printed circuit board (PCB) as well as universal serial bus (USB) plug and USB device connected with same - Google Patents
Printed circuit board (PCB) as well as universal serial bus (USB) plug and USB device connected with same Download PDFInfo
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- CN102869187A CN102869187A CN2012103455029A CN201210345502A CN102869187A CN 102869187 A CN102869187 A CN 102869187A CN 2012103455029 A CN2012103455029 A CN 2012103455029A CN 201210345502 A CN201210345502 A CN 201210345502A CN 102869187 A CN102869187 A CN 102869187A
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- 239000002184 metal Substances 0.000 claims abstract description 39
- 239000012634 fragment Substances 0.000 claims description 10
- 230000005764 inhibitory process Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001629 suppression Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The embodiment of the invention provides a printed circuit board (PCB) as well as a universal serial bus (USB) plug and a USB device connected with the PCB. The PCB is characterized by comprising a suppression circuit which is used for suppressing a harmonic wave transmitted by USB data. The USB plug connected with the PCB comprises a metal surface, wherein an impermeable metal part is arranged on a part on the metal surface and corresponding to an elastic piece of a socket; and after the USB plug is plugged into the socket, the elastic piece is contacted with the impermeable metal part. The PCB as well as the USB plug and the USB device connected with the PCB can reduce the interference.
Description
Technical field
The embodiment of the invention relates to terminal technology, relates in particular to a kind of PCB and connected USB plug and USB device.
Background technology
Wireless terminal product has formed form miscellaneous, such as mobile phone, data card, palm intelligent machine etc. at present through for many years development.It is that it generally can leave interface and compunication that a general form is arranged in these various forms of products, and most popular is USB (Universal Serial Bus, USB).Particularly concerning data card, it mainly relies on computer power supply, and with the computer swap data, realize the interface of data card power supply and data interaction USB mouth just.
Fig. 1 is the structural representation of existing USB plug, referring to Fig. 1, two through holes 11 are arranged respectively on the upper and lower surfaces of USB plug, four shell fragments on the position difference respective socket of these four through holes 11, when USB plug is connected with socket, because four shell fragments of socket top and bottom just in time are stuck on four holes of plug, so that plug is insufficient with being connected of socket.When keeping USB normally to insert, the plug that can guarantee and contacting of socket only have two shell fragments of side.These two contacts will be easy to occur falling the phenomenon of port when data high-speed transmits, and, because contact is insufficient, can produce contact impedance, when transmitting, high-speed digital signal produces abundant interference signal, affect the normal operation of communication system.
In addition, when USB plug and printed circuit board (Printed Circuit Board, PCB) connect, be by in the jack on the straight cutting leg 12 insertion PCB on the USB plug.Referring to Fig. 1, there is groove 13 between the side housing of USB plug and the straight cutting leg, because the existence of this groove 13, so that USB plug can not fully contact PCB.And, the face that contacts with PCB on the existing USB plug, referring to the contact-making surface 14 among Fig. 1 and contact-making surface 15, these contact-making surfaces are plastics, this also so that USB plug can not with the PCB good contact.
The above-mentioned design meeting of existing USB plug is so that USB plug fully contact base and/or PCB can produce contact impedance, and the generation interference affects the normal operation of system when high-speed digital signal transmit.
Summary of the invention
The embodiment of the invention provides a kind of PCB and connected USB plug and USB device, and the interference when reducing the usb data transmission improves systematic function.
On the one hand, the embodiment of the invention provides a kind of PCB, comprising: suppress circuit, be used for the harmonic wave of usb data transmission is suppressed.
On the other hand, the embodiment of the invention provides a kind of USB plug that is connected with PCB, comprise the straight cutting leg, wherein, described USB plug satisfies at least one in the following condition: the metal shell that is positioned at the same side with straight cutting leg on the described USB plug contacts fully with described PCB when described USB plug is connected with PCB; The face that contacts with described PCB on the described USB plug is metal.
As shown from the above technical solution, the PCB of the embodiment of the invention and connected USB plug and USB device by impermeable metal part instead through-holes is set at metal covering, can so that USB plug fully be connected with socket, reduce and disturb; By the groove part that is positioned at the metal shell of the same side with described straight cutting leg is extended, so that contact fully with described PCB when described USB plug is connected with PCB with metal shell that straight cutting leg on the described USB plug is positioned at the same side, can improve the adequacy that contacts of USB plug and PCB, reduce and disturb; Be set to metal by the contact-making surface with PCB, also can improve adequacy, reduce and disturb; By the inhibition circuit is set in PCB, can suppress to disturb.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 structural representation of third embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 2 is the USB plug structural representation of first embodiment of the invention, and Fig. 3 is the USB plug structural representation of second embodiment of the invention, and both view directions are different.
Referring to Fig. 2 or Fig. 3, in order to improve the contact of USB plug and socket, the embodiment of the invention provides following technical scheme:
This USB plug comprises metal covering, and the shell fragment position corresponding to socket is provided with impermeable metal part 4 on described metal covering so that described USB plug insert described socket after described shell fragment contact with described impermeable metal part 4.
Further, the deformation of the shell fragment on the socket is excessive, this impermeable metal part 4 can be set to the metal sunk part.
That is, referring to Fig. 1, what arrange in the shell fragment position corresponding to socket in the prior art is through hole 11, and through hole can not guarantee that USB plug fully contacts with socket.In order to improve the contact of USB plug and socket, the present embodiment blocks through hole originally with metal, that is, referring to Fig. 2 or 3, what the present embodiment arranged at original lead to the hole site place is the metal part, has realized the good contact of USB plug and socket.Deformation for fear of shell fragment is excessive, improves the useful life of socket, and the present embodiment can be arranged to this metal part 4 shorter than metal covering on every side, namely is arranged to concave shape.
The present embodiment can be so that USB plug fully contacts with socket by throughhole portions originally is arranged to the metal part, the interference problem of avoiding loose contact to cause.
Referring to Fig. 2 or Fig. 3, in order to improve the contact of USB plug and PCB, the embodiment of the invention provides following technical scheme:
This USB plug satisfies at least one in the following condition: the metal shell that is positioned at the same side with described straight cutting leg contacts fully with described PCB when described USB plug is connected with PCB; The face that contacts with described PCB on the described USB plug is metal.
Particularly, referring to Fig. 1, be positioned at the straight cutting leg on the USB plug in the prior art and have a groove 13 on the metal shell of the same side, because the existence of this groove, so that USB plug can not fully be connected with PCB.The present embodiment extends the metal of the position of originally groove 13, so that this metal shell contacts fully with described PCB when described USB plug is connected with PCB for so that USB plug fully is connected with PCB.Namely, referring to Fig. 2 or 3, the groove part with script of the present embodiment extends processing, so that the height of the metal shell 1 of groove part contacts fully with described PCB when described USB plug is connected with PCB originally, for example, referring to Fig. 1, the height of the little in the inner plastics of height of groove part 13 originally; And in the embodiment of the invention, referring to Fig. 2 or 3, groove part 1 is extended, highly wait the in the inner height of plastics, when being connected with PCB, USB plug can contact fully with PCB like this.
Moreover the present embodiment can be set to metal by contact-making surface originally, namely referring to Fig. 2, will be set to metal covering with contact-making surface 2 and the contact-making surface 3 of PCB on the USB plug.
The present embodiment extends by the groove part with script, and/or contact-making surface is arranged to metal covering, can be so that USB plug fully contact with PCB, and the interference problem of avoiding loose contact to cause.
Above-mentionedly be directed to respectively the scene that socket is connected with PCB and be described, be understandable that, can be in conjunction with above-mentioned two kinds of scenes to the improvement of USB plug.
Above-mentioned design can improve contacting of USB plug and socket or PCB.To disturb in order further improving, the inhibition circuit can be set in PCB.
Fig. 4 is the PCB structural representation of third embodiment of the invention, referring to Fig. 4, comprises the inhibition circuit among the PCB of the present embodiment, is used for the harmonic wave of usb data transmission is suppressed.
Referring to Fig. 4, the voltage of USB plug input PCB comprises D+ and D-(shown in Fig. 4 left side), and in the prior art, the element that this D+ and D-directly offer on the PCB uses (shown in Fig. 4 right side).The present embodiment disturbs in order to suppress, and increased the inhibition circuit that is comprised of electric capacity and inductance as shown in Figure 4.
The harmonic wave of 960MHz suppressed when the inhibition circuit in the present embodiment can be to the transfer of data of USB2.0, reduced the radiation of USB interference signal.
Particularly, referring to Fig. 4, the inhibition circuit of the present embodiment comprises the first electric capacity 41 and the first inductance 42 that is connected on the pressure-wire corresponding with first voltage (D+) of USB plug input, this first electric capacity 41 and 42 parallel connections of the first inductance; Be connected to the second electric capacity 43 and the second inductance 44, this second electric capacity 43 and 44 parallel connections of the second inductance on the pressure-wire corresponding with the second voltage (D-) of USB plug input.The first electric capacity 41 of this parallel connection be connected an end of inductance 42 and be connected with the 3rd electric capacity 45, an end of the 3rd electric capacity 45 is connected on the pressure-wire corresponding with the first voltage, other end ground connection; The first electric capacity 41 of this parallel connection and the other end of the first inductance 42 are as the input of upper required the first voltage of element of PCB.The second electric capacity 43 of this parallel connection be connected an end of inductance 44 and be connected with the 4th electric capacity 46, an end of the 4th electric capacity 46 is connected on the pressure-wire corresponding with second voltage, other end ground connection; The second electric capacity 43 of this parallel connection and the other end of the second inductance 44 are as the input of the upper required second voltage of element of PCB.
The present embodiment can carry out trap to interference signal and process by the inhibition circuit is set, and filters out interference signal, improves the reliability of system.
Be understandable that, above-mentioned USB plug can be welded on the PCB and obtain USB device, wherein, this USB plug can be the USB plug shown in Fig. 2 or 3, and this PCB can be PCB shown in Figure 4.This USB device can be data card, flash disk etc.
Be understandable that mutually reference of the correlated characteristic in said method and the equipment.In addition, " first " in above-described embodiment, " second " etc. are for each embodiment of differentiation, and do not represent the quality of each embodiment.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a PCB is characterized in that, comprising:
Suppress circuit, be used for the harmonic wave of usb data transmission is suppressed.
2. PCB according to claim 1 is characterized in that, described inhibition circuit comprises:
Be connected to the first electric capacity and the first inductance on the pressure-wire corresponding with the first voltage of USB plug input, described the first electric capacity and the first inductance in parallel;
Be connected to the second electric capacity and the second inductance on the pressure-wire corresponding with the second voltage of USB plug input, described the second electric capacity and the second inductance in parallel;
The first electric capacity of described parallel connection be connected an end of inductance and be connected with the 3rd electric capacity, an end of described the 3rd electric capacity is connected on the pressure-wire corresponding with the first voltage, other end ground connection; The first electric capacity of described parallel connection and the other end of the first inductance are as the input of upper required the first voltage of element of PCB;
The second electric capacity of described parallel connection be connected an end of inductance and be connected with the 4th electric capacity, an end of described the 4th electric capacity is connected on the pressure-wire corresponding with second voltage, other end ground connection; The second electric capacity of described parallel connection and the other end of the second inductance are as the input of the upper required second voltage of element of PCB.
3. a USB plug that is connected with PCB comprises the straight cutting leg, it is characterized in that, described USB plug satisfies at least one in the following condition:
The metal shell that is positioned at the same side with described straight cutting leg contacts fully with described PCB when described USB plug is connected with PCB;
The face that contacts with PCB on the described USB plug is metal.
4. USB plug according to claim 3, described USB plug also comprises metal covering, it is characterized in that,
Shell fragment position corresponding to socket on described metal covering is provided with impermeable metal part so that described USB plug insert described socket after described shell fragment partly contact with described impermeable metal.
5. USB plug according to claim 4 is characterized in that, described impermeable metal partly is the metal sunk part.
6. a USB device is characterized in that, comprises PCB as claimed in claim 1 or 2 and/or such as each described USB plug of claim 3 to 5, described USB plug is welded on the described PCB.
7. USB device according to claim 6 is characterized in that, described equipment is data card or flash disk.
Priority Applications (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 |
Applications Claiming Priority (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 |
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 true CN102869187A (en) | 2013-01-09 |
| CN102869187B CN102869187B (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345502.9A Active CN102869187B (en) | 2010-12-03 | 2010-12-03 | PCB and connected USB plug and USB device |
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| Country | Link |
|---|---|
| CN (1) | CN102869187B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017004983A1 (en) * | 2015-07-06 | 2017-01-12 | 中兴通讯股份有限公司 | Method and device for inhibiting signal interference to usb interface, and computer storage medium |
| CN107017486A (en) * | 2015-10-29 | 2017-08-04 | 日本压着端子制造株式会社 | Electric 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)
| 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 |
-
2010
- 2010-12-03 CN CN201210345502.9A patent/CN102869187B/en active Active
Patent Citations (2)
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017004983A1 (en) * | 2015-07-06 | 2017-01-12 | 中兴通讯股份有限公司 | Method and device for inhibiting signal interference to usb interface, and computer storage medium |
| CN107017486A (en) * | 2015-10-29 | 2017-08-04 | 日本压着端子制造株式会社 | Electric 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102869187B (en) | 2016-08-10 |
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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. |
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| CP01 | Change in the name or title of a patent holder | ||
| 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. |
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Effective date of registration: 20231226 Address after: 410000 South of the third floor of the R&D Building of Hunan Tuowei Information System Co., Ltd., No. 298, Tongzipo West Road, Changsha Hi tech Development Zone, Changsha, Hunan Patentee after: Hunan Kaihong Zhigu Digital Industry Development Co.,Ltd. Address before: 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 before: HUAWEI DEVICE Co.,Ltd. |
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