CN217932702U - Communication device based on serial bus - Google Patents
Communication device based on serial bus Download PDFInfo
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- CN217932702U CN217932702U CN202222134237.1U CN202222134237U CN217932702U CN 217932702 U CN217932702 U CN 217932702U CN 202222134237 U CN202222134237 U CN 202222134237U CN 217932702 U CN217932702 U CN 217932702U
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Abstract
Communication device based on serial bus relates to communication device technical field, including communication public plug, communication line, communication female plug and static elimination module, communication public plug passes through the communication line and is connected with communication female plug communication electricity, the static elimination module includes electrostatic discharge protection device, overcurrent protection self-resuming fuse and is used for the electric capacity of storage static, the terminal of intaking of electrostatic discharge protection device is connected with the positive voltage data line and the negative voltage data line electricity of communication line respectively, the both ends of electric capacity are connected with electrostatic discharge protection device's discharge terminal electricity respectively, overcurrent protection self-resuming fuse inserts the power positive polar line of communication line. The utility model relates to a rationally, adopt single electrostatic discharge protection device intercommunication device to carry out electrostatic protection, practice thrift the space, guarantee signal transmission's integrality, reliable and stable has fine popularization and application and worth.
Description
Technical Field
The utility model belongs to the technical field of the communication device technique and specifically relates to a communication device based on serial bus is related to.
Background
Universal Serial Bus (USB) is an emerging data communication method that gradually replaces other interface standards, and was jointly established in 1995 by computer companies and communication companies such as Intel, compaq, digital, IBM, microsoft, NEC, and northern telecom, and gradually forms an industry standard. As a high-speed serial bus, the USB bus has extremely high transmission speed which can meet the application environment requirement of high-speed data transmission, and the bus also has the advantages of simple power supply (bus power supply), convenient installation and configuration (supporting plug and play and hot plug), simple expansion port (127 peripheral devices can be expanded at most through a hub), diversified transmission modes (4 transmission modes), good compatibility (compatibility after product upgrading), and the like.
However, in a dry environment, due to friction or other use conditions, metal wires in a communication device carry static electricity, the static electricity is a natural enemy of electronic products, and heat generated by an electrostatic discharge electric field or current can cause potential damage to elements, electrostatic discharge damage can cause complete damage to the elements, dust can be adsorbed by the static electricity, and the service life of insulation resistance of the elements is shortened.
Designing a serial bus communication device capable of solving the electrostatic problem is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve present serial bus communication device's electrostatic protection problem, the utility model provides a communication device based on serial bus. The following technical scheme is adopted:
communication device based on serial bus, including communication public plug, communication line, communication female plug and static elimination module, the public plug of communication passes through the communication line and is connected with communication female plug communication electricity, the static elimination module includes electrostatic discharge protection device, overcurrent protection self-resuming fuse and is used for the electric capacity of storage static, the terminal of intaking of electrostatic discharge protection device is connected with the positive voltage data line and the negative voltage data line electricity of communication line respectively, the both ends of electric capacity are connected with electrostatic discharge protection device's discharge terminal electricity respectively, overcurrent protection self-resuming fuse inserts the positive power line of communication line.
Through the technical scheme, when the communication device is used, static electricity accumulated in the communication male plug, the communication line and the communication female plug can be led in by the electrostatic discharge protection device, the static electricity is stored through the capacitor, the single electrostatic discharge protection device is adopted for carrying out electrostatic protection, the space is saved, the signal integrity is ensured, the international electrotechnical standard requirements of IEC61000-4-2 are met, the overcurrent protection self-recovery fuse is added, when the power supply positive line is subjected to instantaneous overload, protective fusing is carried out, after overload faults are eliminated, the overcurrent protection self-recovery fuse is switched on again, normal communication requirements are not influenced, and data transmission is more stable and reliable.
Optionally, the capacitor is an ESDL3552PFCT5G electrostatic discharge capacitor produced by the company Anson, and the capacitor is large in electrostatic storage and quick in discharge.
Optionally, the metal protection shells of the communication male plug and the communication female plug are respectively connected to the power input terminals of the electrostatic discharge protection device.
Through the technical scheme, the metal protection shell is connected into the electrostatic discharge protection device, so that the interference of the static electricity rubbed on the surface of the metal protection shell on the signal wire of the communication wire is avoided.
Optionally, an equivalent resistor is further provided, and two ends of the resistor are electrically connected with two ends of the capacitor.
Through the technical scheme, the equivalent resistance can accelerate the consumption of the electric quantity stored in the capacitor, and secondary electrostatic interference caused by short-time large-quantity electrostatic accumulation is avoided.
Optionally, the electrostatic indicator light is electrically connected with two ends of the capacitor in series with the resistor.
Through above-mentioned technical scheme, when the electric capacity passed through resistance discharge, the static pilot lamp can instruct, the suggestion user, and inside electrostatic accumulation is more, can wait to use after the static pilot lamp extinguishes, and is safer.
Optionally, the electrostatic discharge protection device is a stage boat electron SR05SED.
By the technical scheme, the electronic SR05SED electrostatic discharge protection device of the platform boat has ultralow leakage amount, meets IEC61000-4-2 (ESD) and protection level 4, and can protect +/-20 KV of contact discharge.
The stage boat electron SR05SED is provided with four terminals, wherein the terminals No. 2 and No. 3 are power-in terminals, and the terminals No. 1 and No. 4 are power-out terminals.
Optionally, the overcurrent protection self-recovery fuse is a reynolds source SMD1206P075TF.
Through the technical scheme, the Ruilong source SMD1206P075TF is small in size, meets the RoHS standard, and can effectively perform overload protection on the power line of the serial bus communication device.
Optionally, the resistance value of the resistor is 1000 Ω.
Through the technical scheme, the 1000 omega resistor can efficiently discharge the stored electric quantity in the capacitor.
Optionally, an electrical appliance cavity is arranged in the communication male plug, an indicator lamp mounting port communicated with the electrical appliance cavity is arranged on the surface of the communication male plug, and each electronic part of the static elimination module is packaged in the electrical appliance cavity.
And all electronic parts of the static elimination module are packaged in the electric appliance cavity, so that the volume of the whole communication device based on the serial bus is not increased, and the operation is more stable and reliable.
To sum up, the utility model discloses a following at least one useful technological effect:
the utility model discloses can provide communication device based on serial bus, structural design is reasonable, adopts single electrostatic discharge protection device intercommunication device to carry out electrostatic protection, practices thrift the space, guarantees signal transmission's integrality, and is reliable and stable, has fine popularization and application and worth.
Drawings
Fig. 1 is a schematic diagram of the connection principle of the electric devices of the present invention;
fig. 2 is a schematic circuit diagram of the electric discharge protection device of the present invention;
fig. 3 is a schematic view of the communication male plug of the present invention.
Description of reference numerals: 1. a communication male plug; 2. a communication line; 21. a positive voltage data line; 22. A negative voltage data line; 23. a power supply positive line; 3. a communication female plug; 4. an electrostatic discharge protection device; 5. an overcurrent protection self-recovery fuse; 6. a capacitor; 7. an equivalent resistance; 8. an electrostatic indicator light; 11. an appliance chamber.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 to 3.
The embodiment of the utility model provides a disclose communication device based on serial bus.
Referring to fig. 1-3, the communication device based on the serial bus comprises a communication male plug 1, a communication line 2, a communication female plug 3 and an electrostatic elimination module, wherein the communication male plug 1 is in communication electrical connection with the communication female plug 3 through the communication line 2, the electrostatic elimination module comprises an electrostatic discharge protection device 4, an overcurrent protection self-recovery fuse 5 and a capacitor 6 for storing static electricity, an incoming terminal of the electrostatic discharge protection device 4 is electrically connected with a positive voltage data line 21 and a negative voltage data line 22 of the communication line 2 respectively, two ends of the capacitor 6 are electrically connected with a discharging terminal of the electrostatic discharge protection device 4 respectively, and the overcurrent protection self-recovery fuse 5 is connected to a positive power supply line 23 of the communication line 2.
When the communication device is used, static electricity accumulated in the communication male plug 1, the communication wire 2 and the communication female plug 3 can be led in by the electrostatic discharge protection device 4 and is stored by the capacitor 6, the single electrostatic discharge protection device 4 is adopted for electrostatic protection, the space is saved, the signal integrity is ensured, the international electrotechnical standard requirements of IEC61000-4-2 are met, the overcurrent protection self-recovery fuse 5 is added, when the power supply positive wire 23 is subjected to instantaneous overload, protective fusing is carried out, after overload faults are eliminated, the overcurrent protection self-recovery fuse 5 is switched on again, the normal communication requirements are not influenced, and the data transmission is more stable and reliable.
The capacitor 6 adopts an ESDL3552PFCT5G electrostatic discharge capacitor produced by the company Anson, and has large electrostatic storage capacity and quick discharge.
The metal protection shells of the communication male plug 1 and the communication female plug 3 are respectively connected with the power inlet terminals of the electrostatic discharge protection device 4.
The metal protective shell is connected to the electrostatic discharge protection device 4, so that interference of static electricity rubbed on the surface of the metal protective shell on a signal line of the communication line 2 is avoided.
And an equivalent resistor 7, wherein two ends of the resistor 7 are electrically connected with two ends of the capacitor 6.
The equivalent resistor 7 can accelerate the consumption of the stored electricity in the capacitor 6, and secondary electrostatic interference caused by short-time large-scale electrostatic accumulation is avoided.
And the static indicator light 8 is also arranged, and the static indicator light 8 and the resistor 7 are electrically connected with two ends of the capacitor 6 in a series connection mode.
When electric capacity 6 discharges through resistance 7, electrostatic indicator 8 can instruct, the suggestion user, and inside electrostatic accumulation is more, can wait that electrostatic indicator 8 extinguishes the back and reuse, and is safer.
The electrostatic discharge protection device 4 is a stage boat electron SR05SED.
The electronic SR05SED electrostatic discharge protection device has ultralow leakage, meets IEC61000-4-2 (ESD), has a protection level of 4, and can protect the contact discharge +/-20 KV.
The stage boat electron SR05SED is provided with four terminals, wherein, the No. 2 and No. 3 terminals are electric inlet terminals, and the No. 1 and No. 4 terminals are electric outlet terminals.
The overcurrent protection self-healing fuse 5 is a reynolds number SMD1206P075TF.
Ruilong source SMD1206P075TF is small in size, meets the RoHS standard, and can effectively perform overload protection on a power line of a serial bus communication device.
The resistance of the resistor 7 is 1000 omega.
The 1000 omega resistor 7 can efficiently discharge the stored energy in the capacitor 6.
An electrical appliance cavity 11 is arranged in the communication male plug 1, an indicator lamp mounting port communicated with the electrical appliance cavity is arranged on the surface of the communication male plug, and electronic parts of the static elimination module are packaged in the electrical appliance cavity 11.
And all electronic parts of the static elimination module are packaged in the electric appliance cavity, so that the volume of the whole communication device based on the serial bus is not increased, and the operation is more stable and reliable.
The embodiment of the utility model provides a communication device based on serial bus's implementation principle does:
in a specific application scenario of the communication device based on the serial bus, static electricity accumulated in the communication male plug 1, the communication line 2 and the communication female plug 3 is led in by the stage boat electronic SR05SED, is stored by the capacitor 6,
when electric capacity 6 discharges through resistance 7, electrostatic indicator 8 can instruct, the suggestion user, and inside electrostatic accumulation is more, can wait that electrostatic indicator 8 extinguishes the back and reuse, and is safer. The capacitor 6 adopts an ESDL3552PFCT5G electrostatic discharge capacitor produced by the company Ansenmei, a single boat electron SR05SED is adopted for electrostatic protection, the space is saved, the signal integrity is ensured, the international electrotechnical standard requirements of IEC61000-4-2 are met, a Ruilong source SMD1206P075TF is added, when the power supply positive wire 23 is subjected to instantaneous overload, protective fusing is carried out, after the overload fault is eliminated, the overcurrent protection self-recovery fuse 5 is reconnected, the normal communication requirement is not influenced, and the data transmission is more stable and reliable.
Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. Communication device based on serial bus, its characterized in that: including public plug of communication (1), communication line (2), the female plug of communication (3) and static elimination module, public plug of communication (1) is connected with the female plug of communication (3) communication electricity through communication line (2), static elimination module includes electrostatic discharge protection device (4), overcurrent protection self-resuming fuse (5) and is used for storing electric capacity (6) of static, the incoming terminal of electrostatic discharge protection device (4) is connected with positive voltage data line (21) and negative voltage data line (22) of communication line (2) electricity respectively, the both ends of electric capacity (6) are connected with the discharge terminal electricity of electrostatic discharge protection device (4) respectively, overcurrent protection self-resuming fuse (5) insert power positive electrode line (23) of communication line (2).
2. The serial bus based communication device of claim 1, wherein: and the metal protection shells of the communication male plug (1) and the communication female plug (3) are respectively connected with the power inlet terminals of the electrostatic discharge protection device (4).
3. The serial bus based communication device of claim 1, wherein: and the equivalent resistor (7) is arranged, and two ends of the resistor (7) are electrically connected with two ends of the capacitor (6).
4. A serial bus based communication device according to claim 3, wherein: and the static indicator lamp (8) is also arranged, and the static indicator lamp (8) and the resistor (7) are electrically connected with two ends of the capacitor (6) in a series connection mode.
5. The serial bus based communication device of claim 1, wherein: the electrostatic discharge protection device (4) is a stage boat electron SR05SED.
6. The serial bus based communication device of claim 1, wherein: the overcurrent protection self-recovery fuse (5) is a Relong source SMD1206P075TF.
7. A serial bus based communication device according to claim 3, wherein: the resistance value of the resistor (7) is 1000 omega.
8. The serial bus based communication device of claim 1, wherein: an electrical appliance cavity (11) is arranged in the communication male plug (1), an indicator lamp mounting port communicated with the electrical appliance cavity is arranged on the surface of the communication male plug, and electronic parts of the static elimination module are packaged in the electrical appliance cavity (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222134237.1U CN217932702U (en) | 2022-08-15 | 2022-08-15 | Communication device based on serial bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222134237.1U CN217932702U (en) | 2022-08-15 | 2022-08-15 | Communication device based on serial bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217932702U true CN217932702U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222134237.1U Active CN217932702U (en) | 2022-08-15 | 2022-08-15 | Communication device based on serial bus |
Country Status (1)
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| CN (1) | CN217932702U (en) |
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2022
- 2022-08-15 CN CN202222134237.1U patent/CN217932702U/en active Active
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