CN108923134A - A kind of flexible terminal - Google Patents
A kind of flexible terminal Download PDFInfo
- Publication number
- CN108923134A CN108923134A CN201810691544.5A CN201810691544A CN108923134A CN 108923134 A CN108923134 A CN 108923134A CN 201810691544 A CN201810691544 A CN 201810691544A CN 108923134 A CN108923134 A CN 108923134A
- Authority
- CN
- China
- Prior art keywords
- bending
- contact piece
- terminal
- shaped
- elastic
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 87
- 238000003466 welding Methods 0.000 claims abstract description 28
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 238000005476 soldering Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/027—Soldered or welded connections comprising means for positioning or holding the parts to be soldered or welded
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The present invention provides a kind of flexible terminal, which includes：The bending bracket of U-shaped, and angle and welding foot are respectively arranged on two bending side walls of the bending bracket, it further include the elastic contact chip being connect with one end of the horizontal component on the bending bracket between described two bending side walls, and the width of the elastic contact chip is greater than the set value.Flexible terminal is fixed together by using angle and welding foot cooperation in the above-mentioned technical solutions, to increase stability of flexible terminal when fixed, and when elastic contact chip is arranged, the width of the elastic contact chip is greater than the set value, to guarantee stability of the elastic contact chip in electrical connection.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to an elastic terminal.
Background
In the existing ID form, large arc-closing is pursued, a full screen (the pursuit of extremely space causes radio frequency space limitation) is pursued, and the clearance space of an antenna is very small. The space left for the structure is limited, and in order to realize the existing antenna scheme, a side key elastic sheet needs to be introduced. The current side key shell fragment appears warping easily, pastes askew scheduling problem, and then can arouse antenna function test NG, influences the user and uses.
The existing spring plate scheme generally adopts the structure shown in fig. 1, but in the structure shown in fig. 1, the spring plate patch 2 is connected with the welding foot 1, so that the fixation is unreliable, the attachment is easy to deviate, the top contact is influenced, and in the structure shown in fig. 1, the elastic part of the spring plate is used as the welding position, and the elastic performance of the spring plate is influenced.
Disclosure of Invention
The invention provides an elastic terminal which is used for improving the stability and the electric connection effect of the elastic terminal.
The present invention provides an elastic terminal, including: the bending support comprises a U-shaped bending support, wherein two bending side walls of the bending support are respectively provided with a positioning pin and a welding pin, the bending support further comprises an elastic contact piece connected with one end of a horizontal part between the two bending side walls of the bending support, and the width of the elastic contact piece is larger than a set value.
In the technical scheme, the positioning pin and the welding pin are matched to fix the elastic terminal together, so that the stability of the elastic terminal in fixing is improved, and when the elastic contact piece is arranged, the width of the elastic contact piece is greater than a set value, so that the stability of the elastic contact piece in electric connection is ensured.
In a specific embodiment, the elastic contact piece is a triangular bending structure, and the bending structure includes a first U-shaped bending portion and a second U-shaped bending portion, wherein one side wall of the first U-shaped bending portion is fixedly connected with one end of the horizontal portion, the other side wall of the first U-shaped bending portion is connected with one side wall of the second U-shaped bending portion, and the other side wall of the second U-shaped bending portion extends into the U-shaped opening of the bending bracket; and one side wall of the first U-shaped bending part deviates from the opening direction of the bending support. The triangular bending structure is adopted as the elastic contact piece, and one end of the elastic contact piece is connected with the bending support through the bending structure, so that the yield force of the elastic contact piece is improved, and the effect of the whole elastic terminal in electric connection is further improved.
In a specific embodiment, a baffle is arranged at one end of each of the two bent side walls facing the elastic contact piece, and a gap for accommodating the side wall of the second U-shaped bent part to pass through is arranged between the two baffles; one end of the second U-shaped bending part inserted into the opening is provided with a bulge which is in abutting contact with the baffle. The elastic effect of the elastic terminal is further improved.
In a specific embodiment, the protrusion and the second U-shaped bending part are of an integral structure. The structural strength of the whole elastic terminal is improved.
In a specific embodiment, one end of the first U-shaped bending part connected with the horizontal part is provided with an arc-shaped bending part. The structural strength of the contact terminal is improved.
In a specific embodiment, the positioning leg and the welding leg are integrated with the bending bracket. The structural strength of the whole elastic terminal is improved.
In a specific embodiment, the elastic contact piece and the bending support are of an integral structure. The structural strength of the elastic terminal is further improved.
In a particular embodiment, said resilient contact strip is arranged at an end of said horizontal portion near said welding foot. The arrangement of the elastic terminal is convenient.
In a particular embodiment, the set value is 1 mm. The electrical connection strength of the elastic contact piece is improved.
Drawings
Fig. 1 is a schematic structural diagram of a spring terminal in the prior art;
fig. 2 and 3 are perspective views of an elastic terminal according to an embodiment of the present invention;
fig. 4 is a deformation diagram of the elastic terminal according to the embodiment of the present invention;
fig. 5 shows the positive force provided by the elastic contact piece according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2 and 3 together, fig. 2 and 3 are perspective views illustrating different angles of the elastic terminal according to an embodiment of the present invention.
The elastic terminal provided by the embodiment of the invention comprises two parts, wherein one part is a fixed supporting structure, the other part is an elastic contact part, the fixed supporting structure adopts a U-shaped bending support 10, the bending support 10 comprises a horizontal part and two bending side walls 11 connected with the horizontal part, in addition, for the convenience of fixation, each bending side wall 11 is respectively provided with a positioning pin 12 and a welding pin 13, and the positioning pins 12 and the welding pins 13 on the two bending side walls 11 are symmetrically arranged as shown in fig. 2. Further, the elastic contact portion employs an elastic contact piece 20, and the elastic contact piece 20 is connected to one end of the horizontal portion of the bent bracket 10, and the width of the elastic contact piece 20 is greater than a set value, thereby improving a connection effect at the time of contact.
In the structure, when the elastic terminal is welded, the positioning pins 12 are used for pre-positioning, and then the welding pins 13 are used for welding, so that each pin only has one function, and the effect of the elastic terminal during welding is improved. In addition, the width of the elastic contact piece 20 is larger than a set value to ensure that the elastic terminal has a sufficient contact width, thereby improving the effect of the electric connection.
In order to facilitate understanding of the structure of the elastic terminal provided in the embodiments of the present invention, the following detailed description is made with reference to the accompanying drawings and the embodiments.
The embodiment of the invention provides an elastic terminal, which comprises a U-shaped bending bracket 10, as shown in fig. 2, the U-shaped bending bracket 10 comprises two bending side walls 11 and a horizontal part connected between the two bending side walls 11, and the bending bracket 10 is formed in an integral forming mode during specific formation, and can be directly formed in a stamping mode during specific preparation. In order to facilitate the fixation of the entire elastic terminal, a positioning leg 12 and a welding leg 13 are provided on each of the bent side walls 11, and when the positioning leg 12 and the welding leg 13 are specifically provided, they are formed integrally with the bent side walls 11. Thereby increasing the strength of the entire bending bracket 10 and further improving the stability of the entire elastic terminal when fixing the bending bracket 10.
When the positioning leg 12 and the welding leg 13 are specifically provided, as shown in fig. 2, the structure of the entire bending bracket 10 is shown in fig. 2, wherein for the positioning leg 12 and the welding leg 13, reference may be made to the arrangement shown in fig. 2, wherein the positioning leg 12 and the welding leg 13 are provided along an end surface of the bending side wall 11 and are arranged along the length direction of the end surface, and the end surface is an end of the bending side wall 11 facing away from the horizontal portion. When the positioning pin 12 is installed, it can be seen as an extension of the bent sidewall 11, so that the length direction thereof is approximately parallel to the length direction of the bent sidewall 11 (the direction perpendicular to the horizontal portion after bending), and when in use, it can be inserted into the insertion hole on the circuit board corresponding to the elastic terminal for positioning. In addition, for the soldering pin 13, the soldering pin 13 adopts a bending structure, that is, when the soldering pin 13 and the bending side wall 11 are an integral structure, the soldering pin 13 is a structure formed by bending the bending side wall 11 to the outside, and the soldering pin 13 is pressed on the circuit board and soldered with the circuit board, so as to fix the elastic terminal.
As can be seen from the structure shown in fig. 2, when the bent bracket 10 is specifically provided, the entire elastic terminal has four terminal pins: two positioning pins 12 and two welding pins 13, and when the elastic terminal is connected with the circuit board, the elastic terminal is firstly positioned with the circuit board through the two positioning pins 12, and then is directly welded on the circuit board through the two welding pins 13. And when setting up two location feet 12 and two welding feet 13, location foot 12 and welding feet 13 bisymmetry set up the both sides at the horizontal part to made things convenient for whole fixed of the support 10 of bending, and adopt the mode that location foot 12 and welding foot 13 set up with the support 10 is integrative, improved whole support intensity of the support 10 of bending, and then improved whole elastic terminal's assembly accuracy and stability.
Referring to fig. 3 together, fig. 3 shows the structure of the elastic contact piece 20 of the elastic terminal according to the embodiment of the present invention, as can be seen from fig. 3, the elastic contact piece 20 provided in this embodiment has one end connected to the bent bracket 10 and the other end as a free end, and the elastic terminal maintains a positive force by the deformation of the elastic contact piece 20 when the elastic terminal is used. In order to improve the reliability of the elastic terminal in use, when the elastic contact piece 20 is specifically arranged, the width of the elastic contact piece 20 is larger than a set value, and the width is the width of the end part of the elastic contact piece 20 contacting with other parts, such as the width d marked in fig. 3, so as to ensure that the elastic contact piece 20 has enough contact area to perform electrical connection contact. As in a specific embodiment, the set value is 1mm, which is much larger than the width of the terminal in the prior art, thereby improving the electrical connection strength of the elastic contact piece 20.
With continuing reference to fig. 3 and 4, as can be seen from fig. 3 and 4, the elastic contact piece 20 provided in the embodiment of the present invention is disposed at the end of the horizontal portion near the welding foot 13, so that the elastic contact piece 20 can be closer to the welding foot 13, and the stability of the elastic contact piece 20 when it is deformed can be improved.
Specifically, when the elastic contact piece 20 is disposed, the elastic contact piece 20 is a bent structure, and a triangular shape is formed after bending, specifically, referring to the structure shown in fig. 4, for convenience of describing the structure of the elastic contact piece 20, the elastic contact piece 20 is divided into a first U-shaped bent portion 22 and a second U-shaped bent portion 23 according to bending, and it should be understood that the first U-shaped bent portion 22 and the second U-shaped bent portion 23 are an integral structure and formed by bending a metal sheet for multiple times. One side wall of the first U-shaped bending portion 22 is connected to one end of the bending support 10, the other side wall is connected to one side wall of the second U-shaped bending portion 23, and the other side wall of the second U-shaped bending portion 23 extends into the bending support 10.
In the specific setting, a side wall of the first U-shaped bending portion 22 deviates from the opening direction of the bending support 10, specifically referring to fig. 3 and 4, it can be seen that the bending side wall 11, which is located on the horizontal portion and is connected to the bending support 10, of the first U-shaped bending portion 22 is respectively arranged on both sides of the horizontal portion, so that the elastic contact piece 20 has a sufficient working stroke to generate elastic deformation. By adopting a triangular bent structure as the elastic contact piece 20 and adopting one end of the elastic contact piece 20 to be connected with the bent bracket 10 through one bent structure, the yield force of the elastic contact piece 20 is improved, and the effect of the whole elastic terminal in electric connection is further improved. Furthermore, the end of the first U-shaped bending portion 22 connected to the horizontal portion has an arc-shaped bend. The structural strength of the contact terminal is improved. The positive force provided by the entire resilient contact strip 20 when it is resiliently deformed is further increased.
With continued reference to fig. 2, the two bent side walls 11 are provided with a baffle 14 towards the end of the resilient contact strip 20, and a gap is provided between the two baffles 14 for the side wall of the second U-shaped bend 23 to pass through; correspondingly, a protrusion which is pressed and contacted with the baffle plate 14 is arranged at one end of the second U-shaped bending part 23 inserted into the opening of the bending bracket 10. Therefore, the baffle plate 14 limits the bending shape of the elastic contact piece 20, so that the elastic contact piece 20 has certain elastic force, and the problem that the opening angle of the second U-shaped bending part 23 is too large under the action of the self elastic force, so that the function of the whole elastic contact piece 20 is failed is avoided. Referring to fig. 2, the structure in which the second U-shaped bent portion 23 is inserted into the bent bracket 10 forms a T-shaped structure, and the T-shaped structure is blocked by the two blocking plates 14, so that the elastic contact piece 20 is bent to form a triangular shape.
In order to improve the structural strength of the entire elastic terminal, the elastic contact piece 20 and the bent bracket 10 may be integrally formed, thereby improving the structural strength of the entire elastic terminal. Of course, other structures can also be provided by adopting an integral structure, and the protrusion and the second U-shaped bending part 23 are integral structures. Of course, for other structural members, an integral structure may be employed. Preferably, the entire elastic terminal is an integrated structure, that is, the elastic contact piece 20 and the bent bracket 10, and the structure on the elastic contact piece 20 and the structure on the bent bracket 10 are integrated, so that the structural strength of the entire elastic terminal is improved.
As can be seen from the above description, in the embodiment of the present invention, in order to improve the stability and the contact strength of the entire elastic terminal, the stability of the entire elastic terminal is improved by providing the positioning leg 12 and the welding leg 13 at the time of installation, and the positive force provided by the elastic contact piece 20 is improved by adopting a structure in which one end of the elastic contact piece 20 is fixedly connected to the back of the bent bracket 10 and the other end is inserted into the bent bracket 10 as a free end. To change the stress of the resilient contact strip 20 when it is deformed. When the elastic contact piece 20 is deformed, the stress is distributed at the bending position of the first U-shaped bending portion 22 and the position where the first U-shaped bending portion 22 is connected with the horizontal portion, and the stress is small. Referring to fig. 5, fig. 5 shows that different deformation amounts of the elastic contact piece 20 correspond to the provided positive force, and as shown in fig. 5, when the compression reaches 0.8mm, the positive force can be provided to be 1.4N, and a larger positive force can be provided in a shorter working stroke than the elastic terminal in the prior art.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An elastomeric terminal, comprising: the bending support comprises a U-shaped bending support, wherein two bending side walls of the bending support are respectively provided with a positioning pin and a welding pin, the bending support further comprises an elastic contact piece connected with one end of a horizontal part between the two bending side walls of the bending support, and the width of the elastic contact piece is larger than a set value.
2. The elastic terminal of claim 1, wherein the elastic contact piece is a triangular bent structure, the bent structure comprises a first U-shaped bent portion and a second U-shaped bent portion, wherein one side wall of the first U-shaped bent portion is fixedly connected to one end of the horizontal portion, the other side wall of the first U-shaped bent portion is connected to one side wall of the second U-shaped bent portion, and the other side wall of the second U-shaped bent portion extends into the U-shaped opening of the bending bracket; wherein,
and one side wall of the first U-shaped bending part deviates from the opening direction of the bending support.
3. The spring terminal of claim 2, wherein the two bent side walls are provided with a baffle at an end facing the spring contact piece, and a gap is provided between the two baffles for receiving the side wall of the second U-shaped bent portion to pass through; one end of the second U-shaped bending part inserted into the opening is provided with a bulge which is in abutting contact with the baffle.
4. The sprung terminal of claim 3, wherein the boss is integral with the second U-bend.
5. The sprung terminal of claim 2, wherein the end of the first U-bend connected to the horizontal portion has an arcuate bend.
6. The sprung terminal of claim 1, wherein the locating leg and the welding leg are integral with the bent bracket.
7. The sprung terminal of claim 1, wherein the sprung contact piece is of unitary construction with the bent bracket.
8. The sprung terminal of claim 1, wherein the sprung contact piece is disposed at an end of the horizontal portion near which the weld leg is located.
9. The sprung terminal of claim 1, wherein the set value is 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691544.5A CN108923134B (en) | 2018-06-28 | 2018-06-28 | Elastic terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691544.5A CN108923134B (en) | 2018-06-28 | 2018-06-28 | Elastic terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108923134A true CN108923134A (en) | 2018-11-30 |
| CN108923134B CN108923134B (en) | 2024-06-07 |
Family
ID=64421701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810691544.5A Active CN108923134B (en) | 2018-06-28 | 2018-06-28 | Elastic terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923134B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047647A (en) * | 2019-05-20 | 2019-07-23 | 上海科世达-华阳汽车电器有限公司 | A kind of Vehicular charger and its transformer module and flexible terminal |
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| TWM312061U (en) * | 2006-08-16 | 2007-05-11 | Molex Inc | Electrical connector and conducting terminal thereof |
| CN202534820U (en) * | 2012-04-25 | 2012-11-14 | 深圳市长盈精密技术股份有限公司 | Antenna connection device |
| CN103166024A (en) * | 2011-12-16 | 2013-06-19 | 陈惟诚 | Surface mounting side direction telescopic limit elastic sheet |
| CN203026686U (en) * | 2012-12-28 | 2013-06-26 | 陈焕毅 | Elastic strip |
| CN103746210A (en) * | 2014-01-22 | 2014-04-23 | 广东欧珀移动通信有限公司 | Compact bi-directional contact shrapnel structure |
| CN205488683U (en) * | 2016-01-05 | 2016-08-17 | 东莞市尚和电子有限公司 | Strenghthened type spring sheet structure |
| CN206004019U (en) * | 2016-07-25 | 2017-03-08 | 富誉电子科技（淮安）有限公司 | Flexible terminal |
| CN206697621U (en) * | 2017-03-28 | 2017-12-01 | 深圳市长盈精密技术股份有限公司 | Broken plate side compression type shell fragment |
| CN206806558U (en) * | 2017-04-12 | 2017-12-26 | 深圳市信维通信股份有限公司 | Box body type side-pressing spring piece connector |
| CN107611571A (en) * | 2017-08-31 | 2018-01-19 | 广东欧珀移动通信有限公司 | Elastic component, functional unit and mobile terminal |
| CN208284645U (en) * | 2018-06-28 | 2018-12-25 | 华勤通讯技术有限公司 | A kind of flexible terminal |
-
2018
- 2018-06-28 CN CN201810691544.5A patent/CN108923134B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM312061U (en) * | 2006-08-16 | 2007-05-11 | Molex Inc | Electrical connector and conducting terminal thereof |
| CN103166024A (en) * | 2011-12-16 | 2013-06-19 | 陈惟诚 | Surface mounting side direction telescopic limit elastic sheet |
| CN202534820U (en) * | 2012-04-25 | 2012-11-14 | 深圳市长盈精密技术股份有限公司 | Antenna connection device |
| CN203026686U (en) * | 2012-12-28 | 2013-06-26 | 陈焕毅 | Elastic strip |
| CN103746210A (en) * | 2014-01-22 | 2014-04-23 | 广东欧珀移动通信有限公司 | Compact bi-directional contact shrapnel structure |
| CN205488683U (en) * | 2016-01-05 | 2016-08-17 | 东莞市尚和电子有限公司 | Strenghthened type spring sheet structure |
| CN206004019U (en) * | 2016-07-25 | 2017-03-08 | 富誉电子科技（淮安）有限公司 | Flexible terminal |
| CN206697621U (en) * | 2017-03-28 | 2017-12-01 | 深圳市长盈精密技术股份有限公司 | Broken plate side compression type shell fragment |
| CN206806558U (en) * | 2017-04-12 | 2017-12-26 | 深圳市信维通信股份有限公司 | Box body type side-pressing spring piece connector |
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| CN208284645U (en) * | 2018-06-28 | 2018-12-25 | 华勤通讯技术有限公司 | A kind of flexible terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047647A (en) * | 2019-05-20 | 2019-07-23 | 上海科世达-华阳汽车电器有限公司 | A kind of Vehicular charger and its transformer module and flexible terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108923134B (en) | 2024-06-07 |
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Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: Huaqin Technology Co.,Ltd. Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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