CN109152188A - Electrostatic protection device and electronic equipment - Google Patents
Electrostatic protection device and electronic equipment Download PDFInfo
- Publication number
- CN109152188A CN109152188A CN201710464620.4A CN201710464620A CN109152188A CN 109152188 A CN109152188 A CN 109152188A CN 201710464620 A CN201710464620 A CN 201710464620A CN 109152188 A CN109152188 A CN 109152188A
- Authority
- CN
- China
- Prior art keywords
- electrostatic
- radio frequency
- circuit
- protection
- frequency link
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3888—Arrangements for carrying or protecting transceivers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
The disclosure is directed to a kind of electrostatic protection device and electronic equipments, comprising: antenna and radio frequency link, the radio frequency link are electrically connected with the antenna；Electrostatic discharge protective circuit, one end of the electrostatic discharge protective circuit are electrically connected and in parallel with the radio frequency link with the antenna, so that the electrostatic in the electrostatic protection device can be exported by the electrostatic discharge protective circuit, to carry out electrostatic protection to the radio frequency link；The technical solution of the disclosure, to export the electrostatic in electrostatic protection device, is prevented excessive electrostatic to be passed to radio frequency link and circuit is caused to damage, increase the antistatic capacity of electronic equipment, mention the stability and robustness of system by setting electrostatic discharge protective circuit.
Description
Technical field
This disclosure relates to field of terminal technology more particularly to a kind of electrostatic protection device and electronic equipment.
Background technique
Currently, with the electronic equipments such as mobile phone, plate in people's daily life using more and more extensive, people are to electricity
The reaction speed and ability to communicate of sub- equipment are also constantly proposing new demand, for example respond rapidly in user's operation, obtain more
Good communication signal etc..
Summary of the invention
The disclosure provides a kind of electrostatic protection device and electronic equipment, to solve deficiency in the related technology.
According to the first aspect of the embodiments of the present disclosure, a kind of electrostatic protection device is provided, comprising:
Antenna and radio frequency link, the radio frequency link are electrically connected with the antenna；
Electrostatic discharge protective circuit, one end of the electrostatic discharge protective circuit be electrically connected with the antenna and with the radio frequency link simultaneously
Connection, so that the electrostatic in the electrostatic protection device can be exported by the electrostatic discharge protective circuit, to carry out to the radio frequency link
Electrostatic protection.
Optionally, the other end ground connection of the electrostatic discharge protective circuit, by the static guiding ground end.
Optionally, the electrostatic discharge protective circuit includes the first protection circuit, and the first protection circuit includes static impedance
Device.
Optionally, the electrostatic impedor includes Transient Suppression Diode.
Optionally, the electrostatic discharge protective circuit further includes the second protection circuit, the second protection circuit and described first
Protect circuit in parallel.
Optionally, one end of the second protection circuit is grounded, the other end is connected to the first protection circuit and described
Between radio frequency link.
Optionally, the second protection circuit includes inductance element.
Optionally, the electrostatic protection device further includes capacity cell, and the capacity cell is for being isolated in the electrostatic
DC energy.
Optionally, the antenna is connected to the radio frequency link through the capacity cell, and the capacity cell with it is described
Electrostatic discharge protective circuit is in parallel.
According to the second aspect of an embodiment of the present disclosure, a kind of electronic equipment is provided, including such as first party in above-described embodiment
Electrostatic protection device described in face.
As can be seen from the above embodiments, the technical solution of the disclosure is by setting electrostatic discharge protective circuit with by electrostatic protection device
In electrostatic export, prevent excessive electrostatic to be passed to radio frequency link and circuit caused to damage, the electrostatic for increasing electronic equipment is anti-
Shield ability mentions the stability and robustness of system.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of schematic diagram of electrostatic protection device shown according to an exemplary embodiment.
Fig. 2 is the schematic diagram of another electrostatic protection device shown according to an exemplary embodiment.
Fig. 3 is the schematic diagram of another electrostatic protection device shown according to an exemplary embodiment.
Fig. 4 is the schematic diagram of another electrostatic protection device shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
In the natural environment, human body or equipment may accumulate certain electrostatic due to triboelectrification or electrification by induction
Lotus, and when these human bodies or equipment with electrostatic charge contacted with electronic equipment or it is close when electronic equipment can be put
Electricity especially may weaken influence caused by antenna in electronic equipment so that the performance of electronic equipment is affected
Electronic equipment communication function causes the signal of electronic equipment bad, and communication effect is poor.
Therefore, the disclosure proposes a kind of electrostatic protection device, to carry out electrostatic protection to the Anneta module in electronic equipment.
It is specifically described below with reference to embodiment.
Fig. 1 is a kind of schematic diagram of electrostatic protection device shown according to an exemplary embodiment.As shown in Figure 1, this is quiet
Electrical protective device 100 includes antenna 1, radio frequency link 2 and electrostatic discharge protective circuit 3；Wherein, antenna 1 and radio frequency link 2 are electrically connected
It connects, one end of electrostatic discharge protective circuit 3 is electrically connected and in parallel between radio frequency link 2 with antenna 1, so that electrostatic protection fills
Setting the electrostatic in 100 can be exported by the electrostatic discharge protective circuit 3, prevented excessive electrostatic to be passed to radio frequency link 2 and caused circuit
Damage, increases the antistatic capacity of electronic equipment, mentions the stability and robustness of system；Further, which protects
The other end of protection circuit 3 can be grounded, by the static guiding ground end in electrostatic protection device 100.
In one embodiment, which includes the first protection circuit 31, which includes quiet
Electrical impedance device, the electrostatic impedor can the overvoltage at both ends when reaching scheduled breakdown voltage, make a response rapidly, with geometry
Two amplification interpolar leakage currents of series pass through, to reach absorption, weaken electrostatic to the interference of circuit and influence.The static impedance
Device may include arbitrary electrostatic protection element, such as Transient Suppression Diode (Transient Voltage Suppressor,
TVS), ESD (Electro-Static discharge) protection diode etc., the disclosure is limited not to this.
In the present embodiment, as shown in Fig. 2, the electrostatic discharge protective circuit 3 can also include the second protection circuit 32, and should
It is in parallel between second protection circuit 32 and the first protection circuit 31；Wherein, the electrostatic in electrostatic protection device 100 can be along Fig. 2
Shown in direction shown in arrow A and arrow B release so that the first protection circuit 31 is not released, complete electrostatic can be with
It is released by the second protection circuit to ground terminal, to further reduce the electrostatic in incoming radio frequency link 2, is realized to Anneta module
Electrostatic protection.
Wherein, which may include inductance element or electrostatic impedor, for example, when this second
When protecting circuit 32 including inductance element, one end ground connection of the inductance element, the other end are connected to the first protection circuit 31 and penetrate
Between frequency link 2, so as to avoid due to second protection circuit 32 first protection circuit 31 before static electricity discharge and cause
Electrostatic impedor in first protection circuit 31 can not be opened in time.
In above-mentioned each embodiment, which can also include capacity cell 4, be based on capacity cell 4
Physical characteristic can be used for being isolated the DC energy of electrostatic in electrostatic protection device 100.
In one case, as shown in figure 3, one end of the capacity cell 4 is electrically connected with antenna 1, the other end and rf chain
Road 2 is electrically connected, and in parallel between the first protection circuit 31, before the DC energy of electrostatic is isolated in radio frequency link 2,
And it is released by the first protection circuit 31 to ground terminal.
In another case, as shown in figure 4, one end of the capacity cell 4 is electrically connected with antenna 1, the other end and radio frequency
Link 2 is electrically connected, and protects circuit 32 in parallel with the first protection circuit 31, second；Wherein, from the conduction of 2 end of antenna
Electrostatic can be released by the first protection circuit 31 and the second protection circuit 32 respectively, and be isolated by capacity cell 4, be avoided
Incoming radio frequency link 2, with the carry out electrostatic protection of the Anneta module to electronic equipment.
Electronic equipment in above-described embodiment may include mobile phone, tablet computer, electronic reader etc., and the disclosure is not right
This is limited.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (10)
1. a kind of electrostatic protection device characterized by comprising
Antenna and radio frequency link, the radio frequency link are electrically connected with the antenna；
Electrostatic discharge protective circuit, one end of the electrostatic discharge protective circuit are electrically connected and in parallel with the radio frequency link with the antenna,
So that the electrostatic in the electrostatic protection device can be exported by the electrostatic discharge protective circuit, to carry out electrostatic to the radio frequency link
Protection.
2. protective device according to claim 1, which is characterized in that the other end of the electrostatic discharge protective circuit is grounded, with
By the static guiding ground end.
3. protective device according to claim 1, which is characterized in that the electrostatic discharge protective circuit includes the first protection electricity
Road, the first protection circuit includes electrostatic impedor.
4. protective device according to claim 3, which is characterized in that the electrostatic impedor includes that transient state inhibits two poles
Pipe.
5. protective device according to claim 3, which is characterized in that the electrostatic discharge protective circuit further includes the second protection electricity
Road, the second protection circuit and the first protection circuit in parallel.
6. protective device according to claim 5, which is characterized in that one end of the second protection circuit is grounded, is another
End is connected between the first protection circuit and the radio frequency link.
7. protective device according to claim 5, which is characterized in that the second protection circuit includes inductance element.
8. protective device according to claim 1, which is characterized in that the electrostatic protection device further includes capacity cell,
The capacity cell is used for the DC energy being isolated in the electrostatic.
9. protective device according to claim 8, which is characterized in that the antenna is connected to described through the capacity cell
Radio frequency link, and the capacity cell is in parallel with the electrostatic discharge protective circuit.
10. a kind of electronic equipment, which is characterized in that including electrostatic protection device as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464620.4A CN109152188A (en) | 2017-06-19 | 2017-06-19 | Electrostatic protection device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464620.4A CN109152188A (en) | 2017-06-19 | 2017-06-19 | Electrostatic protection device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109152188A true CN109152188A (en) | 2019-01-04 |
Family
ID=64804532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710464620.4A Pending CN109152188A (en) | 2017-06-19 | 2017-06-19 | Electrostatic protection device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109152188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2729962C1 (en) * | 2019-02-22 | 2020-08-13 | Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. | Antenna unit and electronic device |
| EP3716400A1 (en) * | 2019-03-29 | 2020-09-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Electronic device |
| CN114498590A (en) * | 2020-11-09 | 2022-05-13 | 成都鼎桥通信技术有限公司 | Protection circuit of radio frequency device and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080291591A1 (en) * | 2007-05-22 | 2008-11-27 | High Tech Computer, Corp. | Radio-frequency apparatus with electrostatic discharge protection |
| CN202111761U (en) * | 2011-07-19 | 2012-01-11 | 广东欧珀移动通信有限公司 | ESD protection circuit of handset antenna |
| CN106058433A (en) * | 2016-06-03 | 2016-10-26 | 北京小米移动软件有限公司 | Classifying antenna and mobile terminal |
| CN106450747A (en) * | 2016-10-13 | 2017-02-22 | 建荣集成电路科技(珠海)有限公司 | Radio-frequency antenna circuit and pin electrostatic protection circuit thereof |
-
2017
- 2017-06-19 CN CN201710464620.4A patent/CN109152188A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080291591A1 (en) * | 2007-05-22 | 2008-11-27 | High Tech Computer, Corp. | Radio-frequency apparatus with electrostatic discharge protection |
| CN202111761U (en) * | 2011-07-19 | 2012-01-11 | 广东欧珀移动通信有限公司 | ESD protection circuit of handset antenna |
| CN106058433A (en) * | 2016-06-03 | 2016-10-26 | 北京小米移动软件有限公司 | Classifying antenna and mobile terminal |
| CN106450747A (en) * | 2016-10-13 | 2017-02-22 | 建荣集成电路科技(珠海)有限公司 | Radio-frequency antenna circuit and pin electrostatic protection circuit thereof |
Non-Patent Citations (1)
| Title |
|---|
| 袁亚飞主编: "《电子工业静电防护技术与管理》", 30 November 2013 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2729962C1 (en) * | 2019-02-22 | 2020-08-13 | Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. | Antenna unit and electronic device |
| EP3716400A1 (en) * | 2019-03-29 | 2020-09-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Electronic device |
| CN111756028A (en) * | 2019-03-29 | 2020-10-09 | 北京小米移动软件有限公司 | Electronic device |
| CN111756028B (en) * | 2019-03-29 | 2022-07-01 | 北京小米移动软件有限公司 | Electronic device |
| US11437811B2 (en) | 2019-03-29 | 2022-09-06 | Beijing Xiaomi Mobile Software Co., Ltd. | Electronic device |
| CN114498590A (en) * | 2020-11-09 | 2022-05-13 | 成都鼎桥通信技术有限公司 | Protection circuit of radio frequency device and electronic equipment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |