CN221783867U - High power and high current POE surge protector - Google Patents
High power and high current POE surge protector Download PDFInfo
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- CN221783867U CN221783867U CN202322313431.0U CN202322313431U CN221783867U CN 221783867 U CN221783867 U CN 221783867U CN 202322313431 U CN202322313431 U CN 202322313431U CN 221783867 U CN221783867 U CN 221783867U
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- poe
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- surge
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- 230000001012 protector Effects 0.000 title claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of network communication, and provides a high-power high-current POE surge protector, which comprises: a plurality of twisted pairs respectively connected to an interface of the Ethernet, each twisted pair respectively including a first end connected to an input end of the receptacle connector and a second end connected to an output end of the receptacle connector; the surge absorption circuit is respectively positioned between the second ends of each pair of twisted pairs and comprises a discharge tube, two ends of the discharge tube are respectively connected with each pair of twisted pairs, and the third end of the discharge tube is grounded; fine protection lines respectively located between the first ends of each twisted pair. Therefore, by adopting the combination of the high-pass flow discharge tube and the fine protection circuit, multi-level protection is provided for the terminal equipment, electric surge and overvoltage are effectively restrained, and the reliability and stability of the system are improved.
Description
Technical Field
The utility model relates to the technical field of network communication, in particular to the technical field of surge protectors for Ethernet, and more particularly relates to a high-power high-current POE surge protector.
Background
POE (english full Power Over Ethernet) refers to a technology that can provide dc power for some IP-based terminals (such as IP phones, wireless lan access points AP, webcams, etc.) while transmitting data signals without any modification to the existing ethernet cat.5 wiring infrastructure. The POE technology can ensure the normal operation of the existing network while ensuring the safety of the existing structured wiring, and the cost is reduced to the greatest extent. The IEEE 802.3af standard is a new standard based on POE, which is an extension of the existing ethernet standard and is the first international standard for power distribution, and the related standard for directly supplying power through a network cable is added on the basis of IEEE 802.3.
Along with the popularization of network technology, the application of the Ethernet interface is also becoming more and more widespread, and the CAT6 type network transmission interface is satisfied, so that the Ethernet interface is the most commonly used Ethernet interface in the current network. In practical use, the ethernet cables are crisscrossed and extend from indoor to outdoor, so that electromagnetic pulses caused by lightning can induce transient overvoltage in the ethernet lines. Meanwhile, the insulation strength of the Ethernet interface in the communication equipment is generally low, the overvoltage and overcurrent tolerance is poor, and the communication equipment is easily damaged by transient overvoltage. In order to ensure safe and reliable operation of the communication device, overvoltage protection measures must be taken for the ethernet interface.
However, the surge protectors applicable to the ethernet in the market at present all have the technical problems of small through flow of a protection circuit and poor anti-interference capability between lines, and the provision of a high-power high-current POE surge protector is very important to the field.
Disclosure of utility model
In order to solve the technical problem that the prior art lacks surge protection applicable to Ethernet, the utility model provides a high-power high-current POE surge protector, which provides multi-level protection for terminal equipment by adopting the combination of a high-pass flow discharge tube and a fine protection circuit, effectively inhibits electrical surge and overvoltage and improves the reliability and stability of a system.
The utility model provides a high-power high-current POE surge protector, which is characterized by comprising the following components:
A plurality of twisted pairs respectively connected to an interface of the Ethernet, each twisted pair respectively including a first end connected to an input end of the receptacle connector and a second end connected to an output end of the receptacle connector;
The surge absorption circuit is respectively positioned between the second ends of each pair of twisted pairs and comprises a discharge tube, two ends of the discharge tube are respectively connected with each pair of twisted pairs, and the third end of the discharge tube is grounded;
And fine protection lines respectively positioned between the first ends of each pair of twisted pairs, wherein the fine protection lines comprise a current limiting resistor or common mode inductance, a fine bridge stack and a transient suppression diode.
In a preferred embodiment of the present utility model, the dc voltage between the second ends of each twisted pair is between 50 and 57V.
In a further preferred embodiment of the present utility model, the output power corresponding to the resistance between the second ends of each twisted pair is divided into a plurality of types, and the resistance between the second ends of each twisted pair is matched according to the application scenario.
In a preferred embodiment of the present utility model, each electronic component in the surge absorbing circuit and the fine protection circuit is connected through a PCB copper plate type integrated circuit, and the line-to-line distance and the line-to-line bending distance in the PCB copper plate type integrated circuit are matched according to the line-to-line capacitance.
In a preferred embodiment of the utility model, the housing of the POE surge protector is an aluminum housing, and the aluminum housing is protected by anodic oxidation.
By adopting the technical scheme provided by the utility model, the combination of the high-pass discharge tube and the fine protection circuit is adopted to provide multi-level protection for the terminal equipment, so that the electrical surge and overvoltage are effectively restrained, and the reliability and stability of the system are improved. Further, through increasing the thickness of the copper foil of the signal wire on the PCB copper plate type integrated circuit corresponding to the circuit board and optimizing the wiring direction, the transmission insertion loss and crosstalk parameters are reduced, the direct current transmission power is improved, and greater efficiency is provided for terminal equipment.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure and/or process particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a block diagram of a high-power and high-current POE surge protector according to an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a PCB board in a high-power and high-current POE surge protector according to an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a housing of a high-power and high-current POE surge protector according to an embodiment of the present utility model.
Detailed Description
The following will describe embodiments of the present utility model in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present utility model, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that these specific descriptions are only for easy and clear understanding of the present utility model by those skilled in the art, and are not meant to be limiting; and as long as no conflict is formed, each embodiment of the present utility model and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.
The following describes the technical scheme of the utility model in detail through the attached drawings and specific embodiments:
Examples
As shown in fig. 1, this embodiment provides a high-power and high-current POE surge protector, which includes:
A plurality of twisted pairs each connected to an interface of the ethernet network, each twisted pair including a first end 110 connected to an input of the receptacle connector and a second end 120 connected to an output of the receptacle connector; taking fig. 1 as an example, 4 sets of twisted pairs are provided, the first terminal 1 and the second terminal 2 of the first end 110 form an input end of the first set of twisted pairs, the third terminal 3 and the fourth terminal 4 of the first end 110 form an input end of the second set of twisted pairs, the fifth terminal 5 and the sixth terminal 6 of the first end 110 form an input end of the third set of twisted pairs, and the seventh terminal 7 and the eighth terminal 8 of the first end 110 form an input end of the fourth set of twisted pairs; the first terminal 1 and the second terminal 2 of the second end 120 form the output end of the first twisted pair, the third terminal 3 and the fourth terminal 4 of the second end 120 form the output end of the second twisted pair, the fifth terminal 5 and the sixth terminal 6 of the second end 120 form the output end of the third twisted pair, and the seventh terminal 7 and the eighth terminal 8 of the second end 120 form the output end of the fourth twisted pair.
A surge absorbing circuit respectively positioned between the second ends of each twisted pair, the surge absorbing circuit comprising discharge tubes 132, 134, 136, 138 having both ends respectively connected to each twisted pair, and a third end of each discharge tube 132, 134, 136, 138 being grounded; the operating principle of the discharge tube is as follows:
Each discharge tube is respectively arranged to: when the circuit corresponding to the twisted pair has no surge, the discharge tube presents an open state, and when the circuit corresponding to the twisted pair has a surge, the discharge tube presents a short circuit state, so that the surge is discharged into the ground. Further preferably, in the large-current protection circuit, the discharge tubes connected to each twisted pair of wires respectively share a common ground. Therefore, the characteristics of the discharge tube can be utilized, the current absorbing capacity of the discharge tube can be increased, and even if a large current surge occurs, the circuit can be protected from damage; when no surge exists in normal operation, the discharge tube presents an open circuit state; therefore, on the premise of realizing the circuit protection function well, the normal operation of the circuit is not influenced. And the complexity of the circuit wiring is simplified by sharing a ground terminal with each pair of twisted pair-connected discharge tubes.
And fine protection lines respectively positioned between the first ends of each pair of twisted pairs, wherein the fine protection lines comprise a current limiting resistor or a common mode inductance, a fine bridge stack and a transient suppression diode.
Therefore, by adopting the combination of the high-pass flow discharge tube and the fine protection circuit, multi-level protection is provided for the terminal equipment, electric surge and overvoltage are effectively restrained, and the reliability and stability of the system are improved.
In a preferred embodiment of this example, the dc voltage between the second ends of each twisted pair is between 50 and 57V. In a further preferred embodiment, the output power corresponding to the resistance between the second ends of each twisted pair is divided into a plurality of types, and the resistance between the second ends of each twisted pair is matched according to the application scenario.
As new standards based on POE are continually evolving to conform to 802.3af and 802.3at (poe+), the 802.3af standard limits POE power consumption on Powered Devices (PDs) to 12.95W, which limits the range of cable-powered applications. But the 802.3at (poe+) dc voltage is between 50 and 57V, typically 50V. Typical operating current is 10-600 mA, typical output power: 30W. The 802.3bt specification introduces four new high power PD classes (classes) and translates to 40.0W to 71W PD power. The 802.3bt may be backward compatible with 802.3at and 802.3af. The higher power 802.3bt connection to the lower power 802.3at or 802.3af need only be able to operate in a respective lower power state, which is referred to as "downgrade". Therefore, the technical scheme provided by the embodiment can better meet the new standards of more POEs and can provide better compatibility.
Further, the original product is installed in the POE system to provide 48V of voltage and 29.95W of maximum output power, and the product is applied to the POE system to provide 48V of voltage and 71W of maximum output power, so that the product can replace the original product; the surge protector has good expandability and compatibility, and can be seamlessly integrated with the existing POE system and equipment. Whether newly built or existing system upgrades, can be conveniently applied to various scenarios.
As shown in fig. 2, in a preferred implementation of the present embodiment, each electronic component in the surge absorption circuit and the fine protection circuit is connected through a PCB copper plate type integrated circuit, and the line-to-line distance and the pitch of the wiring in the PCB copper plate type integrated circuit are matched according to the line-to-line capacitance. Through increasing the thickness of the copper foil of the signal wire on the PCB copper plate type integrated circuit corresponding to the circuit board and optimizing the wiring direction, the transmission insertion loss and crosstalk parameters are reduced, the direct current transmission power is improved, and greater efficiency is provided for terminal equipment.
The PCB copper plate type integrated circuit with increased thickness of the copper foil of the signal wire and optimized wiring direction is used for improving signal transmission efficiency, reducing insertion loss and reducing near-end crosstalk and far-end crosstalk parameters.
As shown in fig. 3, in a preferred embodiment of the present embodiment, the housing of the POE surge protector is an aluminum housing, and the aluminum housing is protected by anodic oxidation. Therefore, compared with a plastic shell, the POE surge protector provided by the embodiment can resist high temperature and high humidity environments, and has good temperature and humidity adaptability for different installation environments. The design and the material selection of the device can resist severe conditions such as high temperature, high humidity and the like, and ensure the long-time stable operation of the device.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Any person skilled in the art can make many possible variations and simple substitutions to the technical solution of the present utility model by using the methods and technical matters disclosed above without departing from the scope of the technical solution of the present utility model, and these all fall into the scope of protection of the technical solution of the present utility model.
Claims (5)
1. A high power, high current POE surge protector, comprising:
A plurality of twisted pairs respectively connected to an interface of the Ethernet, each twisted pair respectively including a first end connected to an input end of the receptacle connector and a second end connected to an output end of the receptacle connector;
The surge absorption circuit is respectively positioned between the second ends of each pair of twisted pairs and comprises a discharge tube, two ends of the discharge tube are respectively connected with each pair of twisted pairs, and the third end of the discharge tube is grounded;
A fine protection line respectively located between the first ends of each pair of twisted pairs, the fine protection line comprising a current limiting resistor or common mode inductance, a fine bridge stack and a transient suppression diode;
The surge absorption circuit and each electronic element in the fine protection circuit are connected through the PCB copper plate type integrated circuit, and the thickness of a copper foil of a signal wire on a circuit board corresponding to the PCB copper plate type integrated circuit is increased, so that the maximum output power is 71W when the high-power high-current POE surge protector is installed at 48V of voltage provided in a POE system.
2. The POE surge protector of claim 1, wherein the dc voltage between the second ends of each twisted pair is between 50V and 57V.
3. The POE surge protector of claim 2, wherein the output power corresponding to the resistance between the second ends of each twisted pair is divided into a plurality of types, and the resistances between the second ends of each twisted pair are matched according to the application scenario.
4. The POE surge protector of claim 1, wherein the line-to-line distance and the line-to-line pitch in the PCB copper plate integrated circuit are matched according to the line-to-line capacitance.
5. The POE surge protector of claim 1, wherein the POE surge protector housing is provided as an aluminum housing, the aluminum housing being protected by anodic oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322313431.0U CN221783867U (en) | 2023-08-25 | 2023-08-25 | High power and high current POE surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322313431.0U CN221783867U (en) | 2023-08-25 | 2023-08-25 | High power and high current POE surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221783867U true CN221783867U (en) | 2024-09-27 |
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ID=92827195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322313431.0U Active CN221783867U (en) | 2023-08-25 | 2023-08-25 | High power and high current POE surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221783867U (en) |
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2023
- 2023-08-25 CN CN202322313431.0U patent/CN221783867U/en active Active
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