CN207427553U - A kind of electrostatic protection device - Google Patents
A kind of electrostatic protection device Download PDFInfo
- Publication number
- CN207427553U CN207427553U CN201721542936.2U CN201721542936U CN207427553U CN 207427553 U CN207427553 U CN 207427553U CN 201721542936 U CN201721542936 U CN 201721542936U CN 207427553 U CN207427553 U CN 207427553U
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- CN
- China
- Prior art keywords
- electrode
- external electrode
- electrostatic protection
- insulating body
- protection device
- 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.)
- Expired - Fee Related
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- Semiconductor Integrated Circuits (AREA)
Abstract
The utility model discloses a kind of electrostatic protection device, including：Insulating body, the first external electrode, the second external electrode, electrode and the second inner electrode in first inside the insulating body, opposite both sides are respectively arranged with the first external electrode and the second external electrode outside the insulating body；One end of electrode is connected with the top of the first external electrode in described first, the other end of electrode extends towards the lower part direction of the second external electrode in described first, one end of the second inner electrode is connected with the lower part of the second external electrode, and the upper direction of the other end towards the first external electrode of the second inner electrode extends；Gap setting in described first between the other end of the other end of electrode and the second inner electrode has the electrostatic protection layer of resistance changeable.The utility model can with simple the accurate electronic component of the circuit structure of small size protection.
Description
Technical field
The utility model is related to electronic device and equipment field, more particularly to a kind of electrostatic protection device.
Background technology
Electrostatic is the phenomenon that uneven distribution of the charge in material system generates.After object is charged, charge can be maintained at
On object, this generates electrostatic phenomenons.With electronic and intelligentized popularization, the electronic device quantity in people's life
It is on the increase, wherein being no lack of delicate electronic device.Static electric field and electrostatic induced current can inevitably affect these electronics devices
The normal work of part.Being presently used for the electrostatic protector of the high frequencies signal transmission interface such as HDMI, USB3.0, often there is capacitances
The problem of coordinating between amount, circuit reduction design and circuit maintenance, so as to cause the protection circuit in existing electrostatic protector
Excessive busy line area, device volume are excessive.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of electrostatic protection device, the circuit of small size with simple
The electronic component of structural defence precision
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of electrostatic protection device, including：Insulating body, the first external electrode, the second external electrode, positioned at the insulating body
Electrode and the second inner electrode in internal first, the opposite both sides in the insulating body outside are respectively arranged with first dispatch from foreign news agency
Pole and the second external electrode；One end of electrode is connected with the top of the first external electrode in described first, in described first
The other end of electrode extends towards the lower part direction of the second external electrode, one end of the second inner electrode and second dispatch from foreign news agency
The lower part connection of pole, the upper direction of the other end towards the first external electrode of the second inner electrode extend；In described first
Gap setting between the other end of the other end of electrode and the second inner electrode has the electrostatic protection layer of resistance changeable.
Preferably, the electrostatic protection layer is arranged under low resistance high-voltage state be conducting state, low in high resistance
It is state of insulation under voltage status.
Preferably, the first external electrode or the second external electrode are connected with ground wire.
Preferably, projection of the electrode at the second inner electrode is covered completely by the electrostatic protection layer in described first
Lid.
Compared with prior art, the beneficial effects of the utility model are：In the electrostatic production for having an impact delicate electronic device
After life, the electrostatic protection layer being spaced in first between electrode and the second inner electrode can turn on, and electrostatic is imported lowly, thus
Protect electronic device.
Description of the drawings
Some specific realities of the utility model are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter
Apply example.Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that
What these attached drawings were not necessarily drawn to scale.In attached drawing：
Fig. 1 is a kind of stereoscopic schematic diagram of electrostatic protection device；
Fig. 2 is a kind of sectional view of electrostatic protection device.
The meaning of each symbolic indication is as follows in figure：
1- the first external electrodes, 2- the second external electrodes, 3- insulating bodies, electrode in 4- first, 5- the second inner electrodes, 6- electrostatic
Protective layer.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.It should be noted that
It is used to help understand the utility model for the explanation of these embodiments, but does not form the restriction to the utility model.This
Outside, technical characteristic involved in each embodiment of the utility model disclosed below is as long as they do not conflict with each other
It can be combined with each other.
As depicted in figs. 1 and 2, the electrostatic protection device of the utility model, mainly includes：Insulating body 3, the first external electrode
1st, the second external electrode 2, electrode 4 and the second inner electrode 5 in first inside the insulating body.Outside the insulating body 3
The opposite both sides in portion are respectively arranged with the first external electrode 1 and the second external electrode 2.In the present embodiment, insulating body 3
In cuboid, the upper, middle and lower of the first external electrode 1 be connected to the upper surface of insulating body 3, left end face and
Lower face.The upper, middle and lower of the second external electrode 2 is equally connected to the upper surface of 3 opposite side of insulating body, left side
End face and lower face.One in the first external electrode 1 or the second external electrode 2 is connected with ground wire.
One end of electrode 4 is connected with the top of the first external electrode 1 in first, and in described first electrode 4 it is another
It holds towards 2 lower part directions of the second external electrode and extends.One end of the second inner electrode 5 and the lower part of the second external electrode 2 connect
It connects, the upper direction of the other end towards the first external electrode 1 of the second inner electrode 2 extends.Wherein, electrode in described first
Gap setting between the other end of 4 other end and the second inner electrode 5 has the electrostatic protection layer 6 of resistance changeable.At this
In embodiment, in described first projection of the electrode 4 at the second inner electrode 5 be completely covered by the electrostatic protection layer 6.Institute
It states electrostatic protection layer 6 and is arranged under low resistance high-voltage state be conducting state, be insulation under high resistance low-voltage state
State.Therefore, when the utility model electrostatic protection device an external electrode with electronic device to be protected is needed to be connected, electronics
When device is contacted with electrostatic power sources, electrostatic protection layer 6 changes into leading for low resistance high voltage by the state of insulation of high resistance low-voltage
Logical state, it is low so as to which electrostatic be imported, thereby protect electronic device.
The embodiment of the utility model is explained in detail above in association with attached drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the scope of protection of the utility model.
Claims (4)
1. a kind of electrostatic protection device, which is characterized in that including：Insulating body, the first external electrode, the second external electrode, positioned at institute
Electrode and the second inner electrode in first inside insulating body are stated, the opposite both sides in the insulating body outside are respectively arranged with institute
State the first external electrode and the second external electrode；One end of electrode is connected with the top of the first external electrode in described first,
The other end of electrode extends towards the lower part direction of the second external electrode in described first, one end of the second inner electrode and institute
The lower part connection of the second external electrode is stated, the upper direction of the other end towards the first external electrode of the second inner electrode extends；
Gap setting in described first between the other end of the other end of electrode and the second inner electrode has the electrostatic of resistance changeable
Protective layer.
2. electrostatic protection device according to claim 1, which is characterized in that the electrostatic protection layer is arranged in low resistance
It is conducting state under high-voltage state, is state of insulation under high resistance low-voltage state.
3. electrostatic protection device according to claim 2, which is characterized in that the first external electrode or second dispatch from foreign news agency
Pole is connected with ground wire.
4. electrostatic protection device according to any one of claim 1-3, which is characterized in that electrode is in institute in described first
The projection at the second inner electrode is stated to be completely covered by the electrostatic protection layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721542936.2U CN207427553U (en) | 2017-11-17 | 2017-11-17 | A kind of electrostatic protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721542936.2U CN207427553U (en) | 2017-11-17 | 2017-11-17 | A kind of electrostatic protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207427553U true CN207427553U (en) | 2018-05-29 |
Family
ID=62305314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721542936.2U Expired - Fee Related CN207427553U (en) | 2017-11-17 | 2017-11-17 | A kind of electrostatic protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207427553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426880A (en) * | 2019-08-14 | 2019-11-08 | 昆山国显光电有限公司 | Display panel and device |
-
2017
- 2017-11-17 CN CN201721542936.2U patent/CN207427553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426880A (en) * | 2019-08-14 | 2019-11-08 | 昆山国显光电有限公司 | Display panel and device |
| CN110426880B (en) * | 2019-08-14 | 2022-02-11 | 昆山国显光电有限公司 | Display panel and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20201117 |