CN114336181A - USB 3.0 interface anti-interference device - Google Patents
USB 3.0 interface anti-interference device Download PDFInfo
- Publication number
- CN114336181A CN114336181A CN202011022054.XA CN202011022054A CN114336181A CN 114336181 A CN114336181 A CN 114336181A CN 202011022054 A CN202011022054 A CN 202011022054A CN 114336181 A CN114336181 A CN 114336181A
- Authority
- CN
- China
- Prior art keywords
- layer
- interference
- usb
- interface
- metal shell
- 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
Links
Images
Abstract
The invention relates to a USB 3.0 interface anti-interference device, which comprises a metal shell, and a processor and a controller which are arranged in the metal shell, wherein the outer side of the metal shell is connected with a data wire, an insulating colloid is arranged on the processor, and a conductive terminal is arranged in the insulating colloid and is electrically connected with the processor. The controller is provided with an MCU (microprogrammed control unit), the MCU is provided with a plurality of circuit expansion interfaces, the MCU is connected with an anti-interference circuit through the circuit expansion interfaces, the anti-interference circuit is connected with the processor, and the circuit expansion interfaces are connected with the data line. The outside parcel of metal casing has the anti-interference layer, and the one side that metal casing was kept away from on the anti-interference layer is fixed with the insulating layer, is provided with interfering signal detection module on the treater. The anti-interference layer can prevent the interference generated by current impact when the wire is plugged and unplugged, and can also prevent external electromagnetic interference, so that the USB 3.0 interface has better anti-interference capability.
Description
Technical Field
The invention relates to the technical field of USB interfaces, in particular to an anti-interference device for a USB 3.0 interface.
Background
The USB 3.0 is a new generation USB interface, and is characterized in that the transmission rate is very High, theoretically can reach 5Gbps, is 10 times faster than the common High Speed USB (USB2.0 for short) of 480Mbps, and comprehensively surpasses IEEE 1394 and eSATA. The appearance of the USB interface is basically consistent with that of a common USB interface, and the USB interface can be compatible with USB2.0 and USB 1.1 equipment.
With the development of data transmission technology, the USB 3.0 specification, which was launched by intel and other companies, is approved and applied by more manufacturers. The maximum transmission bandwidth of the USB 3.0 is as high as 5.0Gbps (500MB/s), which is improved by nearly 10 times compared with the USB2.0 (the maximum transmission bandwidth of the USB2.0 is 480Mbps (60 MB/s)). However, in the use process of the existing USB 3.0 in the market, the interference of electromagnetic and radio frequency signals emitted by external electronic devices is usually generated, which greatly reduces the transmission efficiency, so that the data and broadband transmission speed does not achieve the expected effect. Therefore, a USB 3.0 interface anti-interference device is needed to solve the problems of the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the anti-interference device for the USB 3.0 interface, which has stronger anti-electromagnetic and radio frequency signal interference capability and improves the transmission efficiency of the USB 3.0 interface.
The above object of the present invention is achieved by the following technical solutions:
a USB 3.0 interface anti-interference device comprises a metal shell, and a processor and a controller which are arranged in the metal shell, wherein a data line is connected to the outer side of the metal shell, an insulating colloid is arranged on the processor, and a conductive terminal is arranged in the insulating colloid and is electrically connected with the processor;
the controller is provided with an MCU (microprogrammed control unit), the MCU is provided with a plurality of circuit expansion interfaces, the MCU is connected with an anti-interference circuit through the circuit expansion interfaces, the anti-interference circuit is connected with the processor, and the circuit expansion interfaces are connected with the data lines;
the outer side of the metal shell is wrapped by an anti-interference layer, one side of the metal shell, away from the anti-interference layer, is fixed with an insulating layer, and an interference signal detection module is arranged on the processor.
Through the technical scheme, when the USB connecting wire is inserted into the USB 3.0 interface for data transmission, the data signal is transmitted to the MCU through the data wire and is transmitted in the conductive terminal of the insulating colloid through the anti-interference circuit and the processor, so that stable data transmission is facilitated. The anti-jamming circuit can avoid the interference of external electromagnetic equipment on the filtering in the processor, and improve the stability of data transmission. The outside of metal casing sets up anti-interference layer, not only can prevent the interference that the electric current rush produced in plug line, can also prevent outside electromagnetic interference for the USB 3.0 interface has better interference killing feature. And the interference signal detection module can detect the interference signal of the USB 3.0 interface, so that a user can take corresponding measures in time to reduce interference, and the practicability is improved. The anti-interference device for the USB 3.0 interface has stronger anti-electromagnetic and radio frequency signal interference capability, and improves the transmission efficiency of the USB 3.0 interface.
The present invention in a preferred example may be further configured to: the anti-interference layer comprises an aluminum foil layer, a rubber layer, an anti-static layer and a woven layer, and the anti-static layer is arranged between the metal shell and the rubber layer;
the aluminum foil layer is fixed on one side, far away from the anti-static layer, of the rubber layer, and the woven layer is fixed between the insulating layer and the aluminum foil layer.
Through above-mentioned technical scheme, the aluminium foil layer can shield external electromagnetic signal's interference, improves its interference killing feature. The antistatic layer can remove the static of USB 3.0 interface, avoids electrostatic interference to ensure that the USB line can high-efficiently discern fast, show the condition that reduces the USB interface and appear unable discernment, can effectively improve the radiating efficiency of USB interface simultaneously, ensure that data transmission rate can remain stable. The weaving layer can improve the structural strength of whole USB 3.0 interface casing to a certain extent, the effectual aluminium foil layer that has protected, the setting up of rubber layer and insulating layer has guaranteed the insulating nature in the USB 3.0 interface outside simultaneously, increases data transmission's stability, improves the life of interface.
The present invention in a preferred example may be further configured to: and a plurality of ferrite electromagnetic wave absorbing plates which are parallel to each other are fixed in the insulating layer.
Through above-mentioned technical scheme, the wave plate setting is inhaled to a plurality of ferrite electromagnetism further plays anti-interference effect in the insulating layer, guarantees the stability of equipment, ensures can long-time stable work.
The present invention in a preferred example may be further configured to: the interference signal detection module comprises a signal acquisition unit, a signal analysis unit and an interference signal lamp, wherein the signal acquisition unit is respectively connected with the signal analysis unit and the processor, the signal analysis unit is connected with the interference signal lamp, and the interference signal lamp is fixed in the insulating layer.
Through the technical scheme, when the USB wire is inserted into the USB 3.0 interface for data transmission, the signal acquisition unit acquires data signals in the processor and transmits the data signals to the signal analysis unit, and the signal analysis unit analyzes the frequency of the signals. When the frequency of the signal is lower than the standard value, the influence of an external interference signal is proved, and the signal analysis unit controls the interference signal lamp to flicker, so that a user is reminded to take corresponding measures in time.
The present invention in a preferred example may be further configured to: the metal shell is internally provided with a metal clamping sheet which is bent and fixedly connected with the metal shell in an integrated forming way.
Through the technical scheme, when the USB male head is inserted into the USB 3.0 interface, the bent metal connecting sheet deforms and elastically abuts against the USB male head, so that the USB interface is not easy to loosen, the stability of data transmission is improved, and the transmission rate is improved.
The present invention in a preferred example may be further configured to: the data line comprises a plastic layer, and a power line, an electronic line and two core wires which are arranged in the plastic layer, wherein a grounding wire is arranged in the center of the plastic layer and is connected with the aluminum foil layer;
the surface on plastic layer has set gradually shielding layer, protective sheath and flame retardant coating, the shielding layer is including interweaving warp silver fiber and weft silver fiber into longitude and latitude form.
Through above-mentioned technical scheme, the interference electromagnetic signal of external conduction on the aluminium foil layer is worn out through the earth connection of data line, has guaranteed its interference killing feature. The shielding layer adopts silver fibers, can well shield electromagnetic waves, and the warp silver fibers and the weft silver fibers are interwoven into a warp-weft shape, so that the surface area of the silver fibers is increased, the silver fibers can be more fully contacted with the electromagnetic waves, the anti-interference performance of the electromagnetic shielding cable is further enhanced, and the normal and stable work of electric equipment is ensured. After the electronic equipment works for a long time, a large amount of heat is easily accumulated in the electronic equipment, and the fireproof layer enables the electronic equipment and the data line to have the characteristic of high temperature resistance, so that the USB 3.0 interface can work for a long time, and the service life is prolonged.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the USB connecting wire is inserted into the USB 3.0 interface for data transmission, data signals are transmitted into the MCU through the data wire and transmitted into the conductive terminals of the insulating colloid through the anti-interference circuit and the processor, so that stable data transmission is facilitated. The anti-jamming circuit can avoid the interference of external electromagnetic equipment on the filtering in the processor, and improve the stability of data transmission.
The outside of metal casing sets up anti-interference layer, not only can prevent the interference that the electric current rush produced in plug line, can also prevent outside electromagnetic interference for the USB 3.0 interface has better interference killing feature. And the interference signal detection module can detect the interference signal of the USB 3.0 interface, so that a user can take corresponding measures in time to reduce interference, and the practicability is improved. The anti-interference device for the USB 3.0 interface has stronger anti-electromagnetic and radio frequency signal interference capability, and improves the transmission efficiency of the USB 3.0 interface.
2. The aluminum foil layer can shield the interference of external electromagnetic signals, and the anti-interference capability of the aluminum foil layer is improved. The antistatic layer can remove the static of USB 3.0 interface, avoids electrostatic interference to ensure that the USB line can high-efficiently discern fast, show the condition that reduces the USB interface and appear unable discernment, can effectively improve the radiating efficiency of USB interface simultaneously, ensure that data transmission rate can remain stable. The weaving layer can improve the structural strength of whole USB 3.0 interface casing to a certain extent, the effectual aluminium foil layer that has protected, the setting up of rubber layer and insulating layer has guaranteed the insulating nature in the USB 3.0 interface outside simultaneously, increases data transmission's stability, improves the life of interface.
3. The plurality of ferrite electromagnetic wave absorbing plates are arranged in the insulating layer to further play a role in resisting interference, so that the stability of the equipment is ensured, and the long-time stable work is ensured.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
FIG. 2 is a schematic diagram showing the structure of an anti-tamper layer according to the present invention.
FIG. 3 is a schematic cross-sectional view of a data line of the present invention
Reference numerals: 1. a metal housing; 11. a data line; 111. a plastic layer; 112. a power line; 113. an electron beam; 114. a core wire; 115. a ground line; 12. an anti-interference layer; 121. an aluminum foil layer; 122. a rubber layer; 123. an antistatic layer; 124. weaving layer; 13. an insulating layer; 131. a ferrite electromagnetic wave absorbing plate; 14. A metal snap tab; 2. a processor; 21. insulating colloid; 22. a conductive terminal; 3. a controller; 4. an interference signal lamp; 5. a shielding layer; 6. a protective sleeve; 7. and a fire-proof layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the USB 3.0 interface anti-interference device disclosed by the present invention includes a metal housing 1, and a processor 2 and a controller 3 disposed in the metal housing 1, wherein the outer side of the metal housing 1 is connected to a data line 11, the processor 2 is provided with an insulating colloid 21, a conductive terminal 22 is mounted in the insulating colloid 21, and the conductive terminal 22 is electrically connected to the processor 2.
The controller 3 is provided with an MCU (microprogrammed control unit), the MCU is provided with a plurality of circuit expansion interfaces, the MCU is connected with an anti-interference circuit through the circuit expansion interfaces, the anti-interference circuit is connected with the processor 2, and the circuit expansion interfaces are connected with the data line 11. The outside parcel of metal casing 1 has anti-interference layer 12, and the one side that metal casing 1 was kept away from on anti-interference layer 12 is fixed with insulating layer 13, is provided with interfering signal detection module on the treater 2.
Referring to fig. 1, a plurality of ferrite electromagnetic wave absorbing plates 131 parallel to each other are fixed in the insulating layer 13, and the plurality of ferrite electromagnetic wave absorbing plates 131 are arranged in the insulating layer 13 to further achieve an anti-interference effect, so that the stability of the device is ensured, and the stable operation for a long time is ensured.
Further, a metal clamping sheet 14 is arranged inside the metal shell 1, and the metal clamping sheet 14 is bent and fixedly connected with the metal shell 1 in an integrated manner. When the USB male head is inserted into the USB 3.0 interface, the bent metal connecting sheet deforms and is elastically abutted against the USB male head, so that the USB interface is not easy to loosen, the stability of data transmission is improved, and the transmission rate is improved.
Wherein, interfering signal detection module includes signal acquisition unit, signal analysis unit and interference signal lamp 4, and signal acquisition unit is connected with signal analysis unit and treater 2 respectively, and signal analysis unit is connected with interference signal lamp 4, and interference signal lamp 4 is fixed in insulating layer 13.
When the USB line is inserted into the USB 3.0 interface for data transmission, the signal acquisition unit acquires data signals in the processor 2 and transmits the data signals to the signal analysis unit, and the signal analysis unit analyzes the frequency of the signals. When the frequency of the signal is lower than the standard value, the influence of an external interference signal is proved, and the signal analysis unit controls the interference signal lamp 4 to flicker, so that a user is reminded to take corresponding measures in time.
Referring to fig. 2, the tamper resistant layer 12 includes an aluminum foil layer 121, a rubber layer 122, an antistatic layer 123, and a braid layer 124, and the antistatic layer 123 is disposed between the metal case 1 and the rubber layer 122. The aluminum foil layer 121 is fixed on the side of the rubber layer 122 far from the antistatic layer 123, and the braid layer 124 is fixed between the insulating layer 13 and the aluminum foil layer 121.
The aluminum foil layer 121 can shield the interference of external electromagnetic signals, and the anti-interference capability of the aluminum foil layer is improved. The antistatic layer 123 can remove static electricity of the USB 3.0 interface and avoid electrostatic interference, so that the USB cable can be identified efficiently and rapidly, the condition that the USB interface cannot be identified is remarkably reduced, meanwhile, the heat dissipation efficiency of the USB interface can be effectively improved, and the data transmission rate can be kept stable. Weaving layer 124 can improve the structural strength of whole USB 3.0 interface casing to a certain extent, the effectual aluminium foil layer 121 that has protected, the insulating nature in the USB 3.0 interface outside has been guaranteed with setting up of insulating layer 13 to rubber layer 122 simultaneously, increases data transmission's stability, improves the life of interface.
Referring to fig. 3, the data line 11 includes a plastic layer 111, and a power line 112, an electronic line 113 and two core wires 114 disposed in the plastic layer 111, wherein a ground line 115 is disposed at the center of the plastic layer 111, and the ground line 115 is connected to the aluminum foil layer 121;
the surface of plastic layer 111 has set gradually shielding layer 5, protective sheath 6 and flame retardant coating 7, and shielding layer 5 is including interweaving warp silver fibre and weft silver fibre into longitude and latitude form. The external interference electromagnetic signal conducted on the aluminum foil layer 121 passes through the grounding wire 115 of the data wire 11, so that the anti-interference capability of the data wire is ensured.
In this embodiment, the shielding layer 5 is made of silver fibers, and can shield electromagnetic waves well, and the warp silver fibers and the weft silver fibers are interwoven into a warp-weft shape, so that the surface area of the silver fibers is increased, the silver fibers can be in contact with the electromagnetic waves more fully, the anti-interference performance of the electromagnetic shielding cable is further enhanced, and the normal and stable operation of electric equipment is ensured. After the electronic equipment works for a long time, a large amount of heat is easily accumulated in the electronic equipment, the fireproof layer 7 enables the electronic equipment and the data line 11 to have high-temperature resistance, the USB 3.0 interface can work for a long time, and the service life is prolonged.
The implementation principle of the embodiment is as follows: when the USB connecting line is inserted into the USB 3.0 interface for data transmission, the data signal is transmitted to the MCU through the data line 11 and transmitted to the conductive terminal 22 of the insulating colloid 21 through the anti-interference circuit and the processor 2, which facilitates stable data transmission. The anti-jamming circuit can avoid the interference of external electromagnetic equipment on the filtering in the processor 2, and improve the stability of data transmission.
The anti-interference layer 12 is arranged on the outer side of the metal shell 1, so that interference caused by current impact in the process of plugging and unplugging wires can be prevented, external electromagnetic interference can be prevented, and the USB 3.0 interface has better anti-interference capability. And the interference signal detection module can detect the interference signal of the USB 3.0 interface, so that a user can take corresponding measures in time to reduce interference, and the practicability is improved. The anti-interference device for the USB 3.0 interface has stronger anti-electromagnetic and radio frequency signal interference capability, and improves the transmission efficiency of the USB 3.0 interface.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The utility model provides a USB 3.0 interface jam-proof device which characterized in that: the intelligent power supply device comprises a metal shell (1), and a processor (2) and a controller (3) which are arranged in the metal shell (1), wherein a data line (11) is connected to the outer side of the metal shell (1), an insulating colloid (21) is arranged on the processor (2), a conductive terminal (22) is installed in the insulating colloid (21), and the conductive terminal (22) is electrically connected with the processor (2);
the controller (3) is provided with an MCU (microprogrammed control unit), the MCU is provided with a plurality of circuit expansion interfaces, the MCU is connected with an anti-interference circuit through the circuit expansion interfaces, the anti-interference circuit is connected with the processor (2), and the circuit expansion interfaces are connected with the data line (11);
the outer side of the metal shell (1) is wrapped by an anti-interference layer (12), the anti-interference layer (12) is far away from one side of the metal shell (1) and is fixed with an insulating layer (13), and an interference signal detection module is arranged on the processor (2).
2. The interference preventing device for USB 3.0 interface according to claim 1, wherein: the anti-interference layer (12) comprises an aluminum foil layer (121), a rubber layer (122), an anti-static layer (123) and a braid layer (124), and the anti-static layer (123) is arranged between the metal shell (1) and the rubber layer (122);
the aluminum foil layer (121) is fixed on one surface, away from the anti-static layer (123), of the rubber layer (122), and the woven layer (124) is fixed between the insulating layer (13) and the aluminum foil layer (121).
3. The interference preventing device for USB 3.0 interface according to claim 2, wherein: and a plurality of ferrite electromagnetic wave absorbing plates (131) which are parallel to each other are fixed in the insulating layer (13).
4. The USB 3.0 interface tamper-proof device of claim 3, wherein: the interference signal detection module comprises a signal acquisition unit, a signal analysis unit and an interference signal lamp (4), wherein the signal acquisition unit is respectively connected with the signal analysis unit and the processor (2), the signal analysis unit is connected with the interference signal lamp (4), and the interference signal lamp (4) is fixed in the insulating layer (13).
5. The USB 3.0 interface tamper-proof device of claim 4, wherein: the metal shell is characterized in that a metal clamping sheet (14) is arranged inside the metal shell (1), and the metal clamping sheet (14) is bent and fixedly connected with the metal shell (1) in an integrated forming mode.
6. The USB 3.0 interface tamper-proof device of claim 5, wherein: the data line (11) comprises a plastic layer (111), and a power line (112), an electronic line (113) and two core wires (114) which are arranged in the plastic layer (111), wherein a grounding line (115) is arranged at the center of the plastic layer (111), and the grounding line (115) is connected with the aluminum foil layer (121);
the surface of plastic layer (111) has set gradually shielding layer (5), protective sheath (6) and flame retardant coating (7), shielding layer (5) are including interweaving warp silver fiber and weft silver fiber into longitude and latitude form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011022054.XA CN114336181A (en) | 2020-09-25 | 2020-09-25 | USB 3.0 interface anti-interference device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011022054.XA CN114336181A (en) | 2020-09-25 | 2020-09-25 | USB 3.0 interface anti-interference device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114336181A true CN114336181A (en) | 2022-04-12 |
Family
ID=81011727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011022054.XA Pending CN114336181A (en) | 2020-09-25 | 2020-09-25 | USB 3.0 interface anti-interference device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114336181A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070076382A1 (en) * | 2005-08-26 | 2007-04-05 | Super Talent Electronics, Inc. | USB device with metal plug shell attached to plastic housing |
| US20100291783A1 (en) * | 2009-05-15 | 2010-11-18 | Chang Nai-Chien | Electronic device having usb interface capable of extraction proof |
| CN201918588U (en) * | 2010-11-04 | 2011-08-03 | 光碁科技股份有限公司 | Semiconductor type surge and static electricity prevention electric connector |
| CN205194937U (en) * | 2015-12-10 | 2016-04-27 | 苏州伟聚电子科技有限公司 | USB connector structure |
| CN207896332U (en) * | 2018-03-12 | 2018-09-21 | 伸铭电子(东莞)有限公司 | A kind of jamproof USB connector |
| CN208015016U (en) * | 2018-04-10 | 2018-10-26 | 东莞市立时电子有限公司 | A kind of Antistatic type data line |
| CN208955305U (en) * | 2018-11-14 | 2019-06-07 | 天津亿为特电子科技有限公司 | There is one kind heat dissipation water-proof function USB to turn UART communication module limiting slot |
| CN209169578U (en) * | 2018-09-18 | 2019-07-26 | 深圳市音质通科技有限公司 | Anti-interference navigation USB data line resistant to bending |
| CN209561820U (en) * | 2019-03-25 | 2019-10-29 | 东莞市昆程达电子科技有限公司 | Intelligence power-off apple data line with breath light |
| CN209747840U (en) * | 2019-06-26 | 2019-12-06 | 珠海中广视讯线缆技术有限公司 | USB connecting wire |
| CN111180932A (en) * | 2018-11-09 | 2020-05-19 | 神讯电脑(昆山)有限公司 | Automatic power supply and interruption type USB female connector |
-
2020
- 2020-09-25 CN CN202011022054.XA patent/CN114336181A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070076382A1 (en) * | 2005-08-26 | 2007-04-05 | Super Talent Electronics, Inc. | USB device with metal plug shell attached to plastic housing |
| US20100291783A1 (en) * | 2009-05-15 | 2010-11-18 | Chang Nai-Chien | Electronic device having usb interface capable of extraction proof |
| CN201918588U (en) * | 2010-11-04 | 2011-08-03 | 光碁科技股份有限公司 | Semiconductor type surge and static electricity prevention electric connector |
| CN205194937U (en) * | 2015-12-10 | 2016-04-27 | 苏州伟聚电子科技有限公司 | USB connector structure |
| CN207896332U (en) * | 2018-03-12 | 2018-09-21 | 伸铭电子(东莞)有限公司 | A kind of jamproof USB connector |
| CN208015016U (en) * | 2018-04-10 | 2018-10-26 | 东莞市立时电子有限公司 | A kind of Antistatic type data line |
| CN209169578U (en) * | 2018-09-18 | 2019-07-26 | 深圳市音质通科技有限公司 | Anti-interference navigation USB data line resistant to bending |
| CN111180932A (en) * | 2018-11-09 | 2020-05-19 | 神讯电脑(昆山)有限公司 | Automatic power supply and interruption type USB female connector |
| CN208955305U (en) * | 2018-11-14 | 2019-06-07 | 天津亿为特电子科技有限公司 | There is one kind heat dissipation water-proof function USB to turn UART communication module limiting slot |
| CN209561820U (en) * | 2019-03-25 | 2019-10-29 | 东莞市昆程达电子科技有限公司 | Intelligence power-off apple data line with breath light |
| CN209747840U (en) * | 2019-06-26 | 2019-12-06 | 珠海中广视讯线缆技术有限公司 | USB connecting wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114336181A (en) | USB 3.0 interface anti-interference device | |
| CN205157852U (en) | But plug optical module | |
| CN213304475U (en) | Cable with cable protection device | |
| CN215299741U (en) | Shielded cable assembly | |
| CN211183534U (en) | Power grid information transmission safety device | |
| CN209169541U (en) | A kind of lightning protection low-frequency cable component | |
| CN101651275B (en) | Lightningproof power supply connector | |
| CN209150429U (en) | A kind of power transmission network piecing devices containing distributed generation resource | |
| CN210641255U (en) | Electrical apparatus box, air conditioner indoor unit and air conditioner | |
| CN213305622U (en) | Optical fiber ring network stabilizing device in high-voltage level environment | |
| CN103311687A (en) | Power source and Ethernet integrated aviation plug cable | |
| CN211265827U (en) | Connector port protective cover device | |
| CN215415552U (en) | Metal-coated plug connector of vehicle sensor | |
| CN220306896U (en) | Weak current engineering wiring device | |
| CN211297362U (en) | Energy board electric circuit of fast switch over | |
| CN114267984B (en) | Waterproof electric connector of USB | |
| CN212519682U (en) | Novel signal lightning protection box | |
| CN216563757U (en) | There is not steamed HDMI multi-media connecting wire | |
| CN215343266U (en) | Special plug for contact cabinet | |
| CN201540972U (en) | Plug-in type cable joint with overvoltage protector | |
| CN215343903U (en) | Two unification lightning protection devices of network power | |
| CN219917801U (en) | Antistatic data line | |
| CN210779378U (en) | Have antistatic, anti-interference characteristic's USB cable concurrently | |
| CN218525775U (en) | Connecting wire harness | |
| CN215988132U (en) | Novel chemical corrosion prevention and water prevention grounding wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |