CN207664354U - A kind of antistatic HDMI plugs - Google Patents
A kind of antistatic HDMI plugs Download PDFInfo
- Publication number
- CN207664354U CN207664354U CN201721887178.8U CN201721887178U CN207664354U CN 207664354 U CN207664354 U CN 207664354U CN 201721887178 U CN201721887178 U CN 201721887178U CN 207664354 U CN207664354 U CN 207664354U
- Authority
- CN
- China
- Prior art keywords
- protection circuit
- esd protection
- peripheral hardware
- antistatic
- sheet metal
- 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
Links
Abstract
A kind of antistatic HDMI plugs, metal front are equipped with the elastic sheet metal that upper surface exposure tail portion is covered from plastic-packaged at the upper surface of rear end.It is also arranged at plastic-packaged set and is fixed with elastic ring set; peripheral hardware esd protection circuit is equipped in elastic ring set; the trigger switch of peripheral hardware esd protection circuit is set in the elastic sheet metal tail end upright projection region that elastic ring is put at the inner wall of end face, and peripheral hardware esd protection circuit is also connected by line with esd protection circuit.The utility model sets esd protection circuit trigger switch by elastic ring set China and foreign countries and is connected with the selectivity for the elastic sheet metal for connecting metal front; electrostatic protection just is carried out to chip at the beginning of HDMI plug hot plug process originates; the original esd protection circuit electrostatic surge absoption ability of chip is expanded by peripheral hardware esd protection circuit simultaneously; be conducive to improve antistatic capacity in hot plug process, while also assuring the high speed transmission abilities and quality of signal.
Description
Technical field
The utility model is related to HDMI data lines production technical field more particularly to a kind of antistatic HDMI plugs.
Background technology
Existing HDMI data lines theoretically support hot plug operations, shorter by length in HDMI plug metal terminals
Hot plug detects needle, is disconnected prior to other terminals in withdrawal process, to regulate and control the esd protection circuit of plug chips
Work, absorbs electrostatic, ensures being normally carried out for hot plug.But in practical operation, since the requirement of HDMI data lines is high
The digital data transmission of speed, thus when design transmits and receives chip, the esd protection circuit protective capability of use is limited, leads to
Slot can only the electrostatic potential of resistance to 5-8KV；And HDMI plugs are in hot plug process, especially initial stage, at plug metal front housing often
Induction electrostatic with V up to ten thousand, to carry out absorption processing to it, inevitable requirement sacrifices chip capacity surplus, influences data
Transmission speed and quality.
Utility model content
The utility model provides a kind of antistatic HDMI plugs, insufficient to solve the above-mentioned prior art.Pass through elastic ring set
Middle peripheral hardware esd protection circuit trigger switch is connected with the selectivity for the elastic sheet metal for connecting metal front, in HDMI plug heat
Swapping process just carries out electrostatic protection at the beginning of originating to chip, while expanding the original ESD of chip by peripheral hardware esd protection circuit and protecting
Protection circuit electrostatic surge absoption ability is conducive to improve antistatic capacity in hot plug process, while also assuring signal
High speed transmission abilities and quality.
In order to realize the purpose of this utility model, intend using following technology：
A kind of antistatic HDMI plugs, including terminal assemblies, metal front and plastic-packaged set, the metal end of terminal assemblies
Son is fixed in metal front, pin is fixed in plastic-packaged set, and pin also passes through the chip in line and plastic-packaged set
It is connected, esd protection circuit is integrated in chip, which is characterized in that metal front is equipped with elasticity gold at the upper surface of rear end
Belong to piece, the through hole that elastic sheet metal tail end is opened up from plastic-packaged set upper surface is stretched out, and fixation is also arranged at plastic-packaged set
Flexible ring set, elastic ring set is interior to be equipped with peripheral hardware esd protection circuit, and the trigger switch of peripheral hardware esd protection circuit is set to elasticity
In elastic sheet metal tail end upright projection region at the inner wall of ring set upper surface, peripheral hardware esd protection circuit also passes through line and ESD
Circuit is protected to be connected.
Further, elastic sheet metal uses copper material.
Further, peripheral hardware esd protection circuit uses chip multilayer piezoresistor.
Further, trigger switch uses copper contact.
Further, elastic ring set uses electro-insulating rubber material.
Further, thermal insulation layer is equipped in the elastic ring set above trigger switch.
The utility model has the beneficial effects that：
1, the utility model sets esd protection circuit trigger switch and the elasticity for connecting metal front by elastic ring set China and foreign countries
The selectivity of sheet metal connects, and just electrostatic protection is carried out to chip at the beginning of HDMI plug hot plug process originates.
2, the utility model expands the original esd protection circuit electrostatic surge absoption energy of chip by peripheral hardware esd protection circuit
Power is conducive to improve antistatic capacity in hot plug process, while also assuring the high speed transmission abilities and quality of signal.
Description of the drawings
Fig. 1 shows the utility model dimensional structure diagram.
Fig. 2 shows the utility model perspective structure schematic diagrames.
Specific implementation mode
As shown in Figure 1, a kind of antistatic HDMI plugs, including terminal assemblies 1, metal front 2 and plastic-packaged set 3, end
The metal terminal 11 of sub-component 1 is fixed in metal front 2, pin 12 is fixed in plastic-packaged set 3, and pin 12 also passes through company
Line is connected with the chip 4 in plastic-packaged set 3, and esd protection circuit 91 is integrated in chip 4.Have in existing metal terminal 11
There is a hot plug to detect needle, the half of other the length of terminal needle inserting length.When carrying out hot plug, which detects needle
First choice disconnects, and inspires chip 4 and starts esd protection circuit 91, absorption protection is carried out to the electrostatic transmitted by metal terminal 11.
Metal front 2 is equipped with elastic sheet metal 5 at the upper surface of rear end, and 5 tail end of elastic sheet metal is from plastic-packaged
It covers and is stretched out at the through-hole 6 that 3 upper surfaces open up.It is also arranged at plastic-packaged set 3 and is fixed with elastic ring set 7, be equipped in elastic ring set 7
The trigger switch 93 of peripheral hardware esd protection circuit 92, peripheral hardware esd protection circuit 92 is set at 7 upper surface inner wall of elastic ring set
In 5 tail end upright projection region of elastic sheet metal.It carries out in hot plug process, the induction electric stress generated at metal front 2
It is larger, the induction electrostatic is exported by elastic sheet metal 5, and make trigger switch 93 and bullet by pressing down on elastic ring set 7
Property the connection of 5 tail end of sheet metal make its remitted its fury to being absorbed to electrostatic by peripheral hardware esd protection circuit 92.Meanwhile
Peripheral hardware esd protection circuit 92 is also connected by line with esd protection circuit 91, on the one hand, esd protection circuit 91 can assist outer
If on the other hand esd protection circuit 92, which carries out electrostatic protection, passes through 92 pre-cooling esd protection circuit of peripheral hardware esd protection circuit
91, to just carry out electrostatic protection to chip at the beginning of HDMI plug hot plug process originates.
Elastic sheet metal 5 uses copper material；Trigger switch 93 uses copper contact.Be conducive to the quick conduction of electric current.
Peripheral hardware esd protection circuit 92 uses chip multilayer piezoresistor.To cope with the induction electrostatic of larger intensity, fill
Code insurance protects metal terminal 11, and hot plug process initial stage HDMI plugs is avoided to burn.
Elastic ring set 7 uses electro-insulating rubber material.Ensure operating personnel's safety.
It is equipped with thermal insulation layer in the elastic ring set 7 of 93 top of trigger switch.Elastic sheet metal 5 and trigger switch 93 is avoided to contact
When generate high temperature scald operating personnel.
Illustrate that specific embodiment of the present invention is as follows in conjunction with the embodiments：
1. heat is inserted into：
Operating personnel, which press down on elastic ring set 7, makes trigger switch 93 be connected to 5 tail end of elastic sheet metal, makes peripheral hardware ESD
It protects circuit 92 and esd protection circuit 91 in running order simultaneously, metal front 2 is inserted into interface.If at this point, before metal
There is induction electrostatic at shell 2, then can be guided to peripheral hardware esd protection circuit 92 or peripheral hardware esd protection circuit by elastic sheet metal 5
92 and esd protection circuit 91 in absorbed, exist at the metal terminal 11 if induction electrostatic can by esd protection circuit 91 into
Row absorbs protection, and need not wait for that hot plug detects needle access interface in metal terminal 11.
After metal front 2 is fully inserted into interface, the pressing to elastic ring set 7 is contacted, makes esd protection circuit 91 by chip
4 regulation and control are worked normally.
2. hot drawing goes out：
Operating personnel, which press down on elastic ring set 7, makes trigger switch 93 be connected to 5 tail end of elastic sheet metal, makes peripheral hardware ESD
It protects circuit 92 and esd protection circuit 91 in running order simultaneously, prepares metal front 2 extracting interface.If at this point, metal
There is induction electrostatic at front housing 2, then can be guided to peripheral hardware esd protection circuit 92 or peripheral hardware ESD protection electricity by elastic sheet metal 5
It is absorbed in road 92 and esd protection circuit 91, can pass through esd protection circuit 91 if there is induction electrostatic at the metal terminal 11
Absorption protection is carried out, and need not wait for that hot plug detection needle extracts interface in metal terminal 11.For the protection work(for improving to chip 4
Can, also identification circuit can be added in esd protection circuit 91 and 4 access of chip, after being incorporated to increasing capacitance, identification circuit is automatic
Cut off the connection of esd protection circuit 91 and chip 4.
Claims (6)
1. a kind of antistatic HDMI plugs, including terminal assemblies（1）, metal front（2）With plastic-packaged set（3）, terminal assemblies
（1）Metal terminal（11）It is fixed on metal front（2）In, pin（12）It is fixed on plastic-packaged set（3）It is interior, pin（12）Also
Pass through line and plastic-packaged set（3）Interior chip（4）It is connected, chip（4）Inside it is integrated with esd protection circuit（91）, feature
It is, metal front（2）Elastic sheet metal is equipped at the upper surface of rear end（5）, elastic sheet metal（5）Tail end is sealed from plastic cement
Encapsulation（3）The through-hole that upper surface opens up（6）Place is stretched out, plastic-packaged set（3）Place, which is also arranged, is fixed with elastic ring set（7）, elasticity
Ring set（7）It is interior to be equipped with peripheral hardware esd protection circuit（92）, peripheral hardware esd protection circuit（92）Trigger switch（93）It is set to elasticity
Ring set（7）Elastic sheet metal at the inner wall of upper surface（5）In tail end upright projection region, peripheral hardware esd protection circuit（92）It is also logical
Cross line and esd protection circuit（91）It is connected.
2. antistatic HDMI plugs according to claim 1, which is characterized in that elastic sheet metal（5）Using copper material.
3. antistatic HDMI plugs according to claim 1, which is characterized in that peripheral hardware esd protection circuit（92）Using piece
Formula multilayer chip varistor.
4. antistatic HDMI plugs according to claim 1, which is characterized in that trigger switch（93）Using copper contact.
5. antistatic HDMI plugs according to claim 1, which is characterized in that elastic ring set（7）Using electro-insulating rubber material
Matter.
6. according to any antistatic HDMI plugs in claim 1,4,5, which is characterized in that trigger switch（93）Top
Elastic ring set（7）It is interior to be equipped with thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887178.8U CN207664354U (en) | 2017-12-29 | 2017-12-29 | A kind of antistatic HDMI plugs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887178.8U CN207664354U (en) | 2017-12-29 | 2017-12-29 | A kind of antistatic HDMI plugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664354U true CN207664354U (en) | 2018-07-27 |
Family
ID=62944205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721887178.8U Expired - Fee Related CN207664354U (en) | 2017-12-29 | 2017-12-29 | A kind of antistatic HDMI plugs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024534A1 (en) * | 2021-08-27 | 2023-03-02 | 荣耀终端有限公司 | Electrostatic protection structure and electronic device |
-
2017
- 2017-12-29 CN CN201721887178.8U patent/CN207664354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024534A1 (en) * | 2021-08-27 | 2023-03-02 | 荣耀终端有限公司 | Electrostatic protection structure and electronic 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 |
Granted publication date: 20180727 Termination date: 20181229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |