CN218275375U - Electrostatic protection network port and network communication equipment - Google Patents
Electrostatic protection network port and network communication equipment Download PDFInfo
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- CN218275375U CN218275375U CN202222492509.5U CN202222492509U CN218275375U CN 218275375 U CN218275375 U CN 218275375U CN 202222492509 U CN202222492509 U CN 202222492509U CN 218275375 U CN218275375 U CN 218275375U
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Abstract
The embodiment of the utility model discloses electrostatic protection network port and network communication equipment. The electrostatic protection network port comprises a circuit board; the circuit board comprises a port chip, a network transformer, a first-stage protection module, a second-stage protection module, an RJ45 connector and an indication module; the primary central tap end of the network transformer is grounded through the first-stage protection module, the port chip, the second-stage protection module and the secondary end of the network transformer are connected, the first-stage protection module is used for enabling the electrostatic potential clamp to be located at a first threshold electrostatic voltage, the network transformer is used for attenuating the first threshold electrostatic voltage into a second threshold electrostatic voltage, and the second-stage protection module is used for enabling the second threshold electrostatic voltage clamp to be located at a third threshold electrostatic voltage so as to reduce the electrostatic potential; the indicating module is connected with the port chip and used for indicating the network connection and data transmission state of the electrostatic protection network port. Compared with the conventional network port, the electrostatic protection network port has stronger anti-interference capability on external static electricity.
Description
Technical Field
The embodiment of the utility model provides a network port protection technical field especially relates to an electrostatic protection network port and network communication equipment.
Background
Most of network access APs and net port RJ45 connectors of routers are plastic shells, and with the increasing requirements of customers on electrostatic protection of network ports, the electrostatic protection test grade of the network ports and the electrostatic protection test method of the network ports are correspondingly improved. The electrostatic protection test grade of the network port is improved from the original contact discharge of 4KV and the air discharge of 8KV to the original contact discharge of 6KV and 8KV, and the air discharge of 10KV, 12KV and 15KV. At present, the conventional network port design generally adopts primary BOB-smith circuit grounding for electrostatic protection, and can not meet the electrostatic anti-interference requirement of a customer on the network port.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an electrostatic protection network port and network communication equipment to improve network port's antistatic effect.
In a first aspect, an embodiment of the present invention provides an electrostatic protection network port, which includes a circuit board; the circuit board comprises a port chip, a network transformer, a first-stage protection module, a second-stage protection module, an RJ45 connector and an indication module;
the primary central tapping end of the network transformer is grounded through the first-stage protection module, the port chip, the second-stage protection module and the secondary end of the network transformer are connected, the first-stage protection module is used for enabling an electrostatic potential clamp to be located at a first threshold electrostatic voltage, the network transformer is used for attenuating the first threshold electrostatic voltage into a second threshold electrostatic voltage, and the second-stage protection module is used for enabling the second threshold electrostatic voltage clamp to be located at a third threshold electrostatic voltage so as to reduce the electrostatic potential; wherein the first threshold electrostatic voltage is greater than the second threshold electrostatic voltage, which is greater than the third threshold electrostatic voltage;
the RJ45 connector is connected with a primary coil of the network transformer, and the RJ45 connector is used for connecting an external network;
the indicating module is connected with the port chip and used for indicating the network connection state and the data transmission state of the electrostatic protection network port.
Optionally, the indication module includes a first anti-static unit, a second anti-static unit and a light-emitting unit;
the first end of the light-emitting unit, the first end of the first anti-static unit and a power supply end are connected, the second end of the first anti-static unit is grounded, and the first anti-static unit is used for clamping the second end of the light-emitting unit at the clamping voltage of the first anti-static unit;
the first end of the second anti-static unit is connected with the port chip, the second end of the second anti-static unit is connected with the second end of the light-emitting unit, the third end of the second anti-static unit is grounded, and the second anti-static unit is used for reducing static voltage.
Optionally, the RJ45 connector includes a plastic shell, a plurality of network signal metal pins partially encapsulated inside the plastic shell, and a light emitting tube encapsulation structure completely encapsulated inside the plastic shell;
the light-emitting unit is packaged at one end of the light-emitting tube packaging structure, the other end of the light-emitting tube packaging structure is flush with the edge of the jack hole of the plastic shell, and the length of the light-emitting tube packaging structure is larger than 5 mm;
the distance from the network signal metal pin to the edge of the jack hole of the plastic shell is more than 5 mm;
the network signal metal pin is connected with a primary coil of the network transformer.
Optionally, the circuit board further comprises an anti-static signal line and a ground plane;
the anti-static signal line is connected with the ground plane, and the anti-static signal line and the ground plane surround the port chip, the network transformer, the first-stage protection module, the second-stage protection module, the plurality of network signal metal pins which are not packaged in the plastic shell and the indication module pins are annularly laid.
Optionally, the first static electricity preventing unit includes a transient diode;
the first pole of the transient diode is used as the first end of the first anti-static unit, and the second pole of the transient diode is used as the second end of the first anti-static unit.
Optionally, the second anti-static unit comprises a resistor and a capacitor;
and the first end of the resistor is connected with the first end of the capacitor and is used as the first end of the second anti-static unit, the second end of the resistor is used as the second end of the second anti-static unit, and the second end of the capacitor is used as the third end of the second anti-static unit.
Optionally, the light emitting unit comprises a light emitting diode;
the anode of the light emitting diode is used as the first end of the light emitting unit, and the cathode of the light emitting diode is used as the second end of the light emitting unit.
Optionally, the first-stage protection module comprises a piezoresistor, a semiconductor discharge tube or a gas discharge tube; the second-stage protection module comprises a transient diode array chip.
Optionally, the RJ45 connector is an insulating plastic material.
In a second aspect, the embodiments of the present invention further provide a network communication device, which includes the electrostatic protection network port provided in any of the above embodiments.
The embodiment of the utility model provides a pass through, first order protection module is located first threshold value static voltage with electrostatic potential pincers, and the network transformer is the second threshold value static voltage with first threshold value static voltage coupling, and second order protection module is located third threshold value static voltage with second threshold value static voltage pincers, makes outside static input reduce gradually. Therefore, the voltage finally input into the port chip is within the bearable range of the port chip, so that the port chip is prevented from being damaged by static electricity, and the anti-interference capability of the port chip to external static electricity is improved. The indicating module can indicate the network connection state of the port chip in real time, so that a user can conveniently check the network connection condition of the network port in real time through the indicating module.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of an esd protection network port according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention;
fig. 3 is a front view of an RJ45 connector according to an embodiment of the present invention;
fig. 4 is a side view of an RJ45 connector according to an embodiment of the present invention;
fig. 5 is a side perspective view of an RJ45 connector according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an esd protection network port circuit board according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a network communication device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides an electrostatic protection network port, figure 1 is the utility model discloses the circuit structure schematic diagram of an electrostatic protection network port that the embodiment provides. As shown in fig. 1, the esd protection network port includes a circuit board 100; the circuit board 100 includes a port chip 110, a network transformer 120, a first protection module 130, a second protection module 140, an RJ45 connector 180, and an indication module 150; a primary central tapping end of the network transformer 120 is grounded through the first-stage protection module 130, the port chip 110, the second-stage protection module 140 and a secondary end of the network transformer 120 are connected, the first-stage protection module 130 is used for clamping the electrostatic potential at a first threshold electrostatic voltage, the network transformer 120 is used for attenuating the first threshold electrostatic voltage to a second threshold electrostatic voltage, and the second-stage protection module 140 is used for clamping the second threshold electrostatic voltage at a third threshold electrostatic voltage to reduce the electrostatic potential; the first threshold electrostatic voltage is greater than a second threshold electrostatic voltage, and the second threshold electrostatic voltage is greater than a third threshold electrostatic voltage; the RJ45 connector 180 is connected with the primary coil of the network transformer 120, and the RJ45 connector 180 is used for connecting an external network; the indication module 150 is connected to the port chip 110, and the indication module 150 is used for indicating a network connection status and data transmission of the esd protection network port.
When the network port contact discharge increases, the air discharge increases or an air interface test is performed, the 180 metal pin of the network port RJ45 connector is easily discharged by static electricity, and the static electricity is transmitted to the port chip 110, so that the port chip 110 is damaged, and the function of the network port wireless network data transmission fails. In this regard, there is a need to improve the electrostatic protection capability of the network port.
The esd protection network port includes a circuit board 100, and esd protection of the circuit can be realized by designing protection for the circuit on the circuit board 100. Specifically, the first stage protection module 130 may absorb up to several kilowatts of electrostatic surge power, so as to clamp the input electrostatic potential at a predetermined value, i.e., a first threshold electrostatic voltage, thereby fixing the electrostatic voltage input to the primary center tap of the network transformer 120 at a certain voltage value, and thus forcibly reducing the input electrostatic voltage. The network transformer 120 may isolate the port chip 110 from an external input, and may reduce the first threshold electrostatic voltage of the external input to the second threshold electrostatic voltage through an attenuation function, thereby enhancing the safety protection of the port chip 110 to some extent. The second stage protection module 140 may also absorb up to several kilowatts of electrostatic surge power, and may clamp the electrostatic potential (second threshold electrostatic voltage) coupled to the secondary side of the network transformer 120 via the network transformer 120 to a predetermined value, i.e., a third threshold electrostatic voltage. Therefore, in the process of inputting external static electricity to the port chip 110, the static voltage is gradually reduced through the protection processing of the first-stage protection module 130, the network transformer 120 and the second-stage protection module 140, so that the voltage finally input to the port chip 110 is within the bearable range of the port chip 110, thereby preventing the port chip 110 from being damaged by the static electricity and improving the anti-interference capability of the port chip 110 against the external static electricity. The port chip 110 is a core module of the esd protection network port, and can receive or send a network signal to assist the communication device to complete information interaction with other devices, so that the esd protection of the port chip 110 is improved, that is, the esd protection capability of the esd protection network port is improved. Illustratively, port chip 110 includes a PHY chip. The RJ45 connector 180 is connected to the primary winding of the network transformer 120, and the RJ45 connector 180 may be communicatively connected to an external network, i.e., receive data from the external network or transmit data to the external network. The indication module 150 may indicate whether the network of the esd network is connected and whether data transmission is normal through a signal fed back by the port chip 110, that is, the network connection state and the data transmission state of the port of the esd network may be displayed in real time.
The embodiment of the utility model provides a pass through, first order protection module 130 is located first threshold value static voltage with electrostatic potential pincers, and network transformer 120 is the second threshold value static voltage with first threshold value static voltage decay, and second order protection module 140 is located third threshold value static voltage with second threshold value static voltage pincers, makes outside static input reduce gradually. Therefore, the voltage finally input to the port chip 110 is within the tolerable range of the port chip 110, thereby preventing the port chip 110 from being damaged by static electricity and improving the anti-interference capability of the port chip 110 to external static electricity. The RJ45 connector 180 may be communicatively connected to an external network, i.e., receive data from or transmit data to the external network. The indication module 150 displays the network connection status and the data transmission status of the esd protection network port in real time through the signal fed back by the port chip 110, so that a user can check the network connection and the data transmission status of the esd protection network port in real time through the indication module 150.
On the basis of the above embodiment, fig. 2 is a schematic circuit structure diagram of another esd protection network port provided in the embodiment of the present invention. As shown in fig. 2, the indication module 150 includes a first anti-static unit 151, a second anti-static unit 152, and a light emitting unit 153; the first end of the light emitting unit 153, the first end of the first anti-static unit 151 and the power terminal are connected, the second end of the first anti-static unit 151 is grounded, and the first anti-static unit 151 is used for embedding the second end of the light emitting unit 153 at the clamping voltage of the first anti-static unit 151; a first end of the second anti-static unit 152 is connected to the port chip 110, a second end of the second anti-static unit 152 is connected to a second end of the light-emitting unit 153, a third end of the second anti-static unit 152 is grounded, and the second anti-static unit 152 is configured to reduce a static voltage.
Wherein the first static electricity preventing unit 151 can absorb up to several kilowatts of static electricity surge power to clamp the input static electricity potential at a predetermined voltage, and the predetermined voltage needs to be equal to the clamping voltage of the first static electricity preventing unit 151, whereby the voltage supplied from the power source terminal to the light emitting unit 153 can be protected from the static electricity. The second anti-static unit 152 may reduce the input static voltage, thereby ensuring that the light emitting signal provided to the light emitting unit 153 by the port chip 110 is not interfered by static electricity. Therefore, the first and second anti-static units 151 and 152 can protect static electricity input to both ends of the light emitting unit 153, thereby ensuring that the light emitting unit 153 emits light normally according to the light emitting signal output by the port chip 110.
On the basis of the above embodiment, fig. 3 is a front view of an RJ45 connector provided by an embodiment of the present invention, fig. 4 is a side view of an RJ45 connector provided by an embodiment of the present invention, fig. 5 is a side perspective view of an RJ45 connector provided by an embodiment of the present invention, referring to fig. 3-5, an RJ45 connector 180 includes a plastic shell 210, a plurality of network signal metal pins 220 partially encapsulated inside the plastic shell 210, and a light emitting tube encapsulation structure 150 completely encapsulated inside the plastic shell 210; the light emitting unit 153 is packaged at one end of the light emitting tube packaging structure 150, the other end of the light emitting tube packaging structure 150 is flush with the edge of the jack hole of the plastic shell 210, and the length of the light emitting tube packaging structure 150 is greater than 5 mm; the distance from the network signal metal pin 220 to the edge of the jack hole of the plastic shell 210 is greater than 5 mm; the network signal metal pin 220 is connected to the primary winding of the network transformer.
Specifically, the length Δ X1 of the indication module 150 may be increased to reduce the electrostatic coupling energy transmitted to the light emitting unit 153 by electrostatic breakdown of the plastic housing 210 of the RJ45 connector 180. The distance Δ X2 from the network signal metal pin 220 to the edge of the jack hole of the plastic housing 210 can be increased to reduce the electrostatic coupling energy transmitted to the indication module 150 by the plastic housing 210.
On the basis of the above embodiment, fig. 6 is a schematic structural diagram of an esd protection network port circuit board according to an embodiment of the present invention. As shown in fig. 5 and 6, the circuit board 100 further includes an anti-static signal line 160 and a ground plane 170; the anti-static signal line 160 is connected to the ground plane 170, and the anti-static signal line 160 and the ground plane 170 are annularly disposed around the port chip 110, the network transformer 120, the first-stage protection module 130, the second-stage protection module 140, the plurality of network signal metal pins 220 that are not encapsulated inside the plastic case 210, and the indication module pin 1531.
Among other things, it is necessary to reduce the electrostatic energy from entering each functional module provided on the circuit board 100 in the design of the circuit board 100. For example, the anti-static signal line 160 and the ground plane 170 surround the port chip 110, the network transformer 120, the first-stage protection module 130, the second-stage protection module 140, the plurality of network signal metal pins 220 that are not encapsulated inside the plastic housing 210, and the indication module pin 1531, so that static electricity can be discharged to the anti-static signal line 160 and the ground plane 170 at the first time when the static electricity enters, thereby reducing the influence of the static electricity on the static electricity protection network port circuit.
On the basis of the above embodiment, fig. 7 is a schematic circuit structure diagram of another esd protection network port according to an embodiment of the present invention. As shown in fig. 7, the first static electricity preventing unit 151 includes a transient diode T1; a first pole of the transient diode T1 serves as a first terminal of the first anti-static unit 151, and a second pole of the transient diode T1 serves as a second terminal of the first anti-static unit 151.
Specifically, a Transient Voltage Super (TVS) is a high performance protection device in the form of a diode. When two poles of the transient diode T1 are impacted by transient high energy, the high impedance between the two poles can be changed into low impedance, the surge power of thousands of watts can be absorbed, the voltage between the two poles is clamped at a preset value, and a subsequent circuit is effectively protected from being damaged by various surge pulses. The first pole of the transient diode T1 serves as a first terminal of the first anti-static unit 151, that is, the first pole of the transient diode T1, the first terminal of the light emitting unit 153, and a power source terminal are connected. The second pole of the transient diode T1 serves as the second terminal of the first anti-static unit 151, that is, the second pole of the transient diode T1 is grounded, whereby the transient diode T1 can protect the voltage supplied from the power source terminal to the light emitting unit 153 from the static electricity. In addition, the transient diode T1 has the advantages of fast response time, large transient power, low leakage current, breakdown voltage deviation, easy control of clamping voltage, no damage limit, small size and the like.
On the basis of the above embodiment, fig. 8 is a schematic circuit structure diagram of another esd protection network port provided in the embodiment of the present invention. As shown in fig. 8, the second static electricity preventing unit 152 includes a resistor R1 and a capacitor C; the first end of the resistor R1 is connected to the first end of the capacitor C, and serves as the first end of the second anti-static unit 152, the second end of the resistor R1 serves as the second end of the second anti-static unit 152, and the second end of the capacitor C serves as the third end of the second anti-static unit 152.
Specifically, a first end of the resistor R1, a first end of the capacitor C, and the port chip 110 are connected, a second end of the resistor R1 is connected to the light emitting unit 153, and a second end of the capacitor C is grounded. The resistor R1 may divide the input electrostatic interference. The capacitor C can absorb the input electrostatic high-frequency energy, and ensure that the light-emitting signal output by the port chip 110 is not interfered by static electricity.
On the basis of the above embodiment, fig. 9 is a schematic circuit structure diagram of another esd protection network port provided in the embodiment of the present invention. As shown in fig. 9, the light emitting unit 153 includes a light emitting diode D; an anode of the light emitting diode D serves as a first terminal of the light emitting unit 153, and a cathode of the light emitting diode D serves as a second terminal of the light emitting unit 153.
Specifically, an anode of the light emitting diode D as a first terminal of the light emitting unit 153, that is, an anode of the light emitting diode D is connected to the first static electricity preventing unit 151. The cathode of the light emitting diode D serves as a second end of the light emitting unit 153, that is, the cathode of the light emitting diode D is connected to the second anti-static unit 152. The light emitting diode D can indicate the network connection condition of the esd network port through the light emitting state. For example, if the light emitting diode D emits light, it indicates that the network connection of the esd network port is normal; and if the light-emitting diode D does not emit light, indicating that the network connection of the electrostatic protection network port is abnormal.
On the basis of the above embodiment, with continued reference to fig. 9, the first-stage protection module 130 includes a varistor R2, a semiconductor discharge tube, or a gas discharge tube; the second-stage protection module 140 includes a transient diode array chip TVS4.
The piezoresistor R2 is a voltage-limiting type protection device. By utilizing the nonlinear characteristic of the piezoresistor R2, when overvoltage occurs between two poles of the piezoresistor R2, the piezoresistor R2 can clamp the voltage to a relatively fixed voltage value, thereby realizing the protection of a post-stage circuit. The semiconductor discharge tube is an overvoltage protection device, is manufactured by using the thyristor principle, triggers the device to conduct and discharge by depending on the breakdown current of a PN junction, and can flow a large surge current or pulse current. The range of breakdown voltage forms the range of overvoltage protection, thereby realizing the protection of a post-stage circuit. The gas discharge tube is used as a lightning protection tube or an antenna switch tube for voltage protection, and has two or more electrodes filled with a certain amount of inert gas. When the applied voltage is increased to make the field intensity between the electrodes of the gas discharge tube exceed the insulation strength of gas, the gap between the two electrodes of the gas discharge tube breaks down the discharge, the original insulation state of the gas discharge tube is converted into a conductive state, the voltage between the two electrodes of the gas discharge tube is maintained at the residual voltage level determined by a discharge arc channel after the gas discharge tube is conducted, and the residual voltage is generally very low, so that the device connected with the gas discharge tube is prevented from being damaged by overvoltage. The transient diode array chip TVS4 is a transient diode integrated chip, and when each pin of the transient diode array chip TVS4 is impacted by transient high energy, the high impedance between the pins can be changed into low impedance, so as to absorb surge power up to several thousands of watts, and clamp the voltage between the two terminals at a predetermined value, thereby effectively protecting a subsequent circuit from being damaged by various surge pulses.
Optionally, the plastic shell is an insulating plastic material.
The plastic shell is made of insulating plastic materials and can prevent electrostatic voltage from being led into the port of the electrostatic protection network.
Fig. 10 is a schematic circuit diagram of another esd protection network port according to an embodiment of the present invention, referring to fig. 10 and fig. 3, wherein an RJ45 connector 180 is connected to the primary winding of the network transformer 120. Specifically, each network signal metal pin 220 of the RJ45 connector 180 is connected to the primary winding of the network transformer 120.
Fig. 11 is a schematic structural diagram of a network communication device according to an embodiment of the present invention, and as shown in fig. 10, the network communication device 01 includes an electrostatic protection network port 02 according to any embodiment of the present invention. Therefore, the embodiment of the present invention provides an advantageous effect of the electrostatic protection network port 02, which is not described herein again.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, may be executed sequentially, or may be executed in different orders, as long as the desired result of the technical solution of the present invention can be achieved, and the present invention is not limited thereto.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electrostatic protection network port is characterized by comprising a circuit board; the circuit board comprises a port chip, a network transformer, a first-stage protection module, a second-stage protection module, an RJ45 connector and an indication module;
the primary central tapping end of the network transformer is grounded through the first-stage protection module, the port chip, the second-stage protection module and the secondary end of the network transformer are connected, the first-stage protection module is used for enabling an electrostatic potential clamp to be located at a first threshold electrostatic voltage, the network transformer is used for attenuating the first threshold electrostatic voltage into a second threshold electrostatic voltage, and the second-stage protection module is used for enabling the second threshold electrostatic voltage clamp to be located at a third threshold electrostatic voltage so as to reduce the electrostatic potential; wherein the first threshold electrostatic voltage is greater than the second threshold electrostatic voltage, which is greater than the third threshold electrostatic voltage;
the RJ45 connector is connected with a primary coil of the network transformer, and the RJ45 connector is used for connecting an external network;
the indicating module is connected with the port chip and used for indicating the network connection state and the data transmission state of the electrostatic protection network port.
2. The ESD port of claim 1, wherein the indication module comprises a first ESD protection unit, a second ESD protection unit, and a light emitting unit;
the first end of the light-emitting unit, the first end of the first anti-static unit and a power supply end are connected, the second end of the first anti-static unit is grounded, and the first anti-static unit is used for clamping the second end of the light-emitting unit at the clamping voltage of the first anti-static unit;
the first end of the second anti-static unit is connected with the port chip, the second end of the second anti-static unit is connected with the second end of the light-emitting unit, the third end of the second anti-static unit is grounded, and the second anti-static unit is used for absorbing and reducing static voltage.
3. The electrostatic protection network port according to claim 2, wherein the RJ45 connector comprises a plastic shell, a plurality of network signal metal pins partially encapsulated inside the plastic shell, and a light emitting tube encapsulation structure completely encapsulated inside the plastic shell;
the light emitting unit is packaged at one end of the light emitting tube packaging structure, the other end of the light emitting tube packaging structure is flush with the edge of the jack hole of the plastic shell, and the length of the light emitting tube packaging structure is larger than 5 mm;
the distance from the network signal metal pin to the edge of the jack hole of the plastic shell is more than 5 mm;
the network signal metal pin is connected with a primary coil of the network transformer.
4. The ESD network port of claim 3, wherein the circuit board further comprises an ESD signal line and a ground plane;
the anti-static signal line is connected with the ground plane, and the anti-static signal line and the ground plane surround the port chip, the network transformer, the first-stage protection module, the second-stage protection module, the plurality of network signal metal pins which are not packaged in the plastic shell and the indication module pins are annularly laid.
5. The ESD port of claim 2, wherein the first ESD protection unit comprises a transient diode;
the first pole of the transient diode is used as the first end of the first anti-static unit, and the second pole of the transient diode is used as the second end of the first anti-static unit.
6. The ESD network port of claim 2, wherein the second ESD protection unit comprises a resistor and a capacitor;
and the first end of the resistor is connected with the first end of the capacitor and serves as the first end of the second anti-static unit, the second end of the resistor serves as the second end of the second anti-static unit, and the second end of the capacitor serves as the third end of the second anti-static unit.
7. The ESD network port of claim 2, wherein the light-emitting unit comprises a light-emitting diode;
the anode of the light emitting diode is used as the first end of the light emitting unit, and the cathode of the light emitting diode is used as the second end of the light emitting unit.
8. The ESD network port of claim 1, wherein the first stage protection module comprises a varistor, a semiconductor discharge tube, or a gas discharge tube; the second-stage protection module comprises a transient diode array chip.
9. The ESD network port of claim 3 wherein the plastic housing is an insulating plastic material.
10. A network communication device comprising the esd protection network port of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222492509.5U CN218275375U (en) | 2022-09-20 | 2022-09-20 | Electrostatic protection network port and network communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222492509.5U CN218275375U (en) | 2022-09-20 | 2022-09-20 | Electrostatic protection network port and network communication equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218275375U true CN218275375U (en) | 2023-01-10 |
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| CN202222492509.5U Active CN218275375U (en) | 2022-09-20 | 2022-09-20 | Electrostatic protection network port and network communication equipment |
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| Country | Link |
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| CN (1) | CN218275375U (en) |
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2022
- 2022-09-20 CN CN202222492509.5U patent/CN218275375U/en active Active
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