Network relay converter

Abstract

The utility model discloses a network relay converter, which comprises a circuit board arranged in a shell, the circuit board is provided with an MTK module, a network interface module and an indicator light module, the MTK module comprises an MTK chip, the network interface module comprises an RJ45 connector J45, and the indicator light module comprises an indicator light connector J101 and an indicator light connector J102. The network relay converter disclosed by the utility model has the beneficial effects that the key signal of the key SWITCH is accessed to the M213 end of the MTK chip U2 through the second end of the key SWITCH, and the key signal of the key SWITCH is accessed to the base electrode of the NPN type bipolar transistor Q2 through the second end of the key SWITCH, so that the network relay converter can be conveniently switched between a transmitting end and a receiving end.

Description

Technical Field

[0001] The invention belongs to the field of communication equipment, and in particular relates to a network relay converter. Background Art

[0002] The invention patent application with publication number CN110278030A and subject name is visible light network relay method and device. Its IPC classification number is H04B10 / 116 and H04B10 / 29. Its technical solution discloses "201. Detecting the motion parameters of the electronic device, and based on the motion parameters, estimating the transmission direction parameters of the visible light signal sent by the electronic device; 202. If the visible light signal sent by the electronic device is obtained, setting identification information in the visible light signal, the identification information identifies the transmission direction parameters of the visible light signal, and sending a relay visible light signal with the identification information; 203. If multiple visible light receiving devices receive the relay visible light signal, confirming the target relay device for processing the relay visible light signal based on the position layout information of all visible light receiving devices and the transmission path."

[0003] It can be seen that the above invention patent application has disclosed a technical solution of the network relay conversion method. However, the technical solution disclosed in the above invention patent application does not further disclose the circuit structure related to the network relay converter, which needs to be further improved. Summary of the invention

[0004] The present invention aims at the prior art, overcomes the above defects and provides a network relay converter.

[0005] The present invention adopts the following technical scheme: a network relay converter includes a circuit board built into a housing, the circuit board is provided with an MTK module, a network interface module, and an indicator light module, the MTK module includes an MTK chip, the network interface module includes an RJ45 connector J45, and the indicator light module includes an indicator light connector J101 and an indicator light connector J102, wherein:

[0006] The No. 1 terminal of the RJ45 connector J45 is electrically connected to the M1_11 terminal of the MTK chip;

[0007] The No. 2 terminal of the RJ45 connector J45 is electrically connected to the M1_12 terminal of the MTK chip;

[0008] The No. 3 terminal of the RJ45 connector J45 is electrically connected to the M1_9 terminal of the MTK chip;

[0009] The No. 10 terminal of the RJ45 connector J45 is electrically connected to the M2_18 terminal of the MTK chip, and the No. 10 terminal of the RJ45 connector J45 is electrically connected to the No. 4 terminal of the indicator light connector J102 through the current limiting resistor R13;

[0010] The No. 11 terminal of the RJ45 connector J45 is electrically connected to the M2_16 terminal of the MTK chip, and the No. 11 terminal of the RJ45 connector J45 is electrically connected to the No. 2 terminal of the indicator light connector J102 through the current limiting resistor R19;

[0011] The M2_9 terminal of the MTK chip is electrically connected to the No. 2 terminal of the indicator light connector J101 through the current limiting resistor R20.

[0012] As a further preferred technical solution of the above technical solution, the MTK module further includes a surface mount connector J4, wherein:

[0013] Terminal 2 of the surface mount connector J4 is electrically connected to terminal M2_14 of the MTK chip U2;

[0014] Terminal 3 of the surface mount connector J4 is electrically connected to terminal M2_12 of the MTK chip U2.

[0015] As a further preferred technical solution of the above technical solution, the circuit board is further provided with a DC-DC module, and the DC-DC module includes a buck converter U3, wherein:

[0016] The 12V input is connected to the terminal 2 of the buck converter U3, and the 5V output is connected to the terminal 3 of the buck converter U3;

[0017] Terminal 1 of the buck converter U3 and terminal 3 of the buck converter U3 are connected to capacitor C20 respectively;

[0018] The common terminal between capacitor C20 and terminal 3 of buck converter U3 is connected to the cathode of Schottky diode D4;

[0019] A common terminal between the cathode of the Schottky diode D4 and terminal 3 of the buck converter U3 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to a common terminal between terminal 5 of the buck converter U3 and the resistor R17.

[0020] As a further preferred technical solution of the above technical solution, the circuit board is also provided with a hardware reset module, the hardware reset module includes an NPN bipolar transistor Q2, a P-channel MOSFET transistor Q1 and a button SWITCH, wherein:

[0021] The collector of the NPN bipolar transistor Q2 is connected to the common end between the resistor R7, the resistor R8 and the negative electrode of the switching diode D5, the base of the NPN bipolar transistor Q2 is connected to the common end between the resistor R12 and the resistor R9, and the emitter of the NPN bipolar transistor Q2 is connected to the positive electrode of the switching diode D5;

[0022] Terminal 2 of the SWITCH button is connected to the common terminal between resistors R12 and R14;

[0023] The gate of the P-channel MOSFET transistor Q1 is connected to the resistor R8, the source of the P-channel MOSFET transistor Q1 is connected to the common end between the capacitor C15, the resistor R10 and the resistor R11, and the source of the P-channel MOSFET transistor Q1 is connected to the common end between the resistor R10 and the resistor R11.

[0024] As a further preferred technical solution of the above technical solution, the circuit board is further provided with an LDO power supply module, and the LDO power supply module includes a linear regulator U1, wherein:

[0025] A capacitor C16 and a capacitor C17 are connected in parallel between terminal 1 of the linear regulator U1 and terminal 3 of the linear regulator U1;

[0026] A capacitor C19 is connected in parallel between terminal 2 of the linear regulator U1 and terminal 1 of the linear regulator U1;

[0027] A capacitor C18 is connected in parallel between terminal 4 of the linear regulator U1 and terminal 1 of the linear regulator U1.

[0028] The network relay converter disclosed in the present invention has the beneficial effect that the key signal of the key SWITCH is connected to the M2_13 terminal of the MTK chip U2 through the terminal No. 2 of the key SWITCH, and the key signal of the key SWITCH is connected to the base of the NPN bipolar transistor Q2 through the terminal No. 2 of the key SWITCH, which facilitates the network relay converter to switch between the sending end or the receiving end. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a circuit schematic diagram of the MTK module of the present application.

[0030] Figure 2 It is a circuit schematic diagram of the network interface module of the present application.

[0031] Figure 3 It is a circuit schematic diagram of the indicator light module of the present application.

[0032] Figure 4 It is a circuit schematic diagram of the DC-DC module of the present application.

[0033] Figure 5 It is a circuit schematic diagram of the power input module of the present application.

[0034] Figure 6 It is a circuit schematic diagram of the hardware reset module of the present application.

[0035] Figure 7It is a circuit schematic diagram of the LDO power module of the present application.

[0036] Figure 8 It is a stereogram from one viewing angle of this application.

[0037] Fig. 9 This is the main view of this application.

[0038] Fig.10 It is a stereogram from another viewing angle of the present application.

[0039] Fig.11 It is a rear view of this application.

[0040] Reference numerals include: 100 - housing. DETAILED DESCRIPTION

[0041] The present invention discloses a network relay converter, which is described below in conjunction with a preferred embodiment (embodiment 1) and with reference to the accompanying drawings. Figure 1-11 , the specific implementation modes of the present invention are further described.

[0042] Example 1.

[0043] See attached figure Figure 1-7 and Figure 8-11 , Figure 1-7 The circuit structure of the circuit board is shown respectively. Figure 8-11 The network relay converters from various perspectives are shown respectively.

[0044] Preferably, the network relay converter comprises a circuit board (not shown) built in the housing 100, the circuit board is provided with an MTK module, a network interface module, and an indicator light module, the MTK module comprises an MTK chip, the network interface module comprises an RJ45 connector J45, and the indicator light module comprises an indicator light connector J101 and an indicator light connector J102, wherein:

[0045] The No. 1 terminal of the RJ45 connector J45 is electrically connected to the M1_11 terminal of the MTK chip;

[0046] The No. 2 terminal of the RJ45 connector J45 is electrically connected to the M1_12 terminal of the MTK chip;

[0047] The No. 3 terminal of the RJ45 connector J45 is electrically connected to the M1_9 terminal of the MTK chip;

[0048] The No. 10 terminal of the RJ45 connector J45 is electrically connected to the M2_18 terminal of the MTK chip, and the No. 10 terminal of the RJ45 connector J45 is electrically connected to the No. 4 terminal of the indicator light connector J102 through the current limiting resistor R13;

[0049] The No. 11 terminal of the RJ45 connector J45 is electrically connected to the M2_16 terminal of the MTK chip, and the No. 11 terminal of the RJ45 connector J45 is electrically connected to the No. 2 terminal of the indicator light connector J102 through the current limiting resistor R19;

[0050] The M2_9 terminal of the MTK chip is electrically connected to the No. 2 terminal of the indicator light connector J101 through the current limiting resistor R20.

[0051] Among them, the MTK module also includes a surface mount connector J4, where:

[0052] Terminal 2 of the surface mount connector J4 is electrically connected to terminal M2_14 of the MTK chip U2;

[0053] Terminal 3 of the surface mount connector J4 is electrically connected to terminal M2_12 of the MTK chip U2.

[0054] The circuit board is also provided with a DC-DC module, and the DC-DC module includes a buck converter U3, wherein:

[0055] The 12V input is connected to the terminal 2 of the buck converter U3, and the 5V output is connected to the terminal 3 of the buck converter U3;

[0056] Terminal 1 of the buck converter U3 and terminal 3 of the buck converter U3 are connected to capacitor C20 respectively;

[0057] The common terminal between capacitor C20 and terminal 3 of buck converter U3 is connected to the cathode of Schottky diode D4;

[0058] A common terminal between the cathode of the Schottky diode D4 and terminal 3 of the buck converter U3 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to a common terminal between terminal 5 of the buck converter U3 and the resistor R17.

[0059] The circuit board is also provided with a hardware reset module, which includes an NPN bipolar transistor Q2, a P-channel MOSFET transistor Q1 and a button SWITCH, wherein:

[0060] The collector of the NPN bipolar transistor Q2 is connected to the common end between the resistor R7, the resistor R8 and the negative electrode of the switching diode D5, the base of the NPN bipolar transistor Q2 is connected to the common end between the resistor R12 and the resistor R9, and the emitter of the NPN bipolar transistor Q2 is connected to the positive electrode of the switching diode D5;

[0061] Terminal 2 of the key SWITCH is connected to the common terminal between the resistor R12 and the resistor R14; so that the key signal of the key SWITCH is connected to the M2_13 terminal of the MTK chip U2 through terminal 2 of the key SWITCH, and the key signal of the key SWITCH is connected to the base of the NPN bipolar transistor Q2 through terminal 2 of the key SWITCH, so that the network relay converter can switch between the sending end or the receiving end;

[0062] The gate of the P-channel MOSFET transistor Q1 is connected to the resistor R8, the source of the P-channel MOSFET transistor Q1 is connected to the common end between the capacitor C15, the resistor R10 and the resistor R11, and the source of the P-channel MOSFET transistor Q1 is connected to the common end between the resistor R10 and the resistor R11.

[0063] The circuit board is also provided with an LDO power module, and the LDO power module includes a linear regulator U1, wherein:

[0064] A capacitor C16 and a capacitor C17 are connected in parallel between terminal 1 of the linear regulator U1 and terminal 3 of the linear regulator U1;

[0065] A capacitor C19 is connected in parallel between terminal 2 of the linear regulator U1 and terminal 1 of the linear regulator U1;

[0066] A capacitor C18 is connected in parallel between terminal 4 of the linear regulator U1 and terminal 1 of the linear regulator U1.

[0067] The circuit board is also provided with a power input module.

[0068] Among them, the RJ45 connector J45 preferably adopts HR911105A.

[0069] Among them, the indicator light connector J102 preferably adopts CCD0133-4725.

[0070] Among them, the indicator light connector J101 preferably adopts CCD0133-4725.

[0071] Among them, the surface mount connector J4 preferably adopts XH2.54_1*4P_SMD.

[0072] Among them, the buck converter U3 preferably adopts RT8272GSP.

[0073] Among them, the Schottky diode D4 is preferably B330.

[0074] Among them, the inductor L2 is preferably CD53-6R8M_6.8uH 2.5A.

[0075] Among them, the NPN bipolar transistor Q2 is preferably BC847C.

[0076] Among them, the P-channel MOSFET transistor Q1 is preferably AOD4185.

[0077] Among them, the switching diode D5 is preferably PMLL4148L.

[0078] The linear regulator U1 preferably adopts LM1117S-3.3.

[0079] Accordingly, a plurality of interfaces are respectively provided on both sides of the housing 100. For example, RJ45 interfaces.

[0080] Example 2.

[0081] Based on Example 1, Example 2 is an extension. The network relay converter of this embodiment can be used alone or in cascade connection with two or more network relay converters, thereby expanding the signal coverage area of ​​the network relay converter. As an example, when the SWITCH button is triggered, the corresponding button signal can make the MTK chip switch between the transmitting end or the receiving end (the specific switching control algorithm adopts the existing technology).

[0082] It is worth mentioning that the technical features such as the specific selection of MTK chips involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0083] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A network relay converter, comprising a circuit board built into a housing, characterized in that: The circuit board is provided with an MTK module, a network interface module, and an indicator light module. The MTK module includes an MTK chip, the network interface module includes an RJ45 connector J45, and the indicator light module includes an indicator light connector J101 and an indicator light connector J102, wherein: The No. 1 terminal of the RJ45 connector J45 is electrically connected to the M1_11 terminal of the MTK chip; The No. 2 terminal of the RJ45 connector J45 is electrically connected to the M1_12 terminal of the MTK chip; The No. 3 terminal of the RJ45 connector J45 is electrically connected to the M1_9 terminal of the MTK chip; The No. 10 terminal of the RJ45 connector J45 is electrically connected to the M2_18 terminal of the MTK chip, and the No. 10 terminal of the RJ45 connector J45 is electrically connected to the No. 4 terminal of the indicator light connector J102 through the current limiting resistor R13; The No. 11 terminal of the RJ45 connector J45 is electrically connected to the M2_16 terminal of the MTK chip, and the No. 11 terminal of the RJ45 connector J45 is electrically connected to the No. 2 terminal of the indicator light connector J102 through the current limiting resistor R19; The M2_9 terminal of the MTK chip is electrically connected to the No. 2 terminal of the indicator light connector J101 through the current limiting resistor R20.

2. The network relay converter according to claim 1, characterized in that: The MTK module also includes a surface mount connector J4, where: Terminal 2 of the surface mount connector J4 is electrically connected to terminal M2_14 of the MTK chip U2; Terminal 3 of the surface mount connector J4 is electrically connected to terminal M2_12 of the MTK chip U2.

3. The network relay converter according to claim 1, characterized in that: The circuit board also has a DC-DC module, which includes a buck converter U3, where: The 12V input is connected to the terminal 2 of the buck converter U3, and the 5V output is connected to the terminal 3 of the buck converter U3; Terminal 1 of the buck converter U3 and terminal 3 of the buck converter U3 are connected to capacitor C20 respectively; The common terminal between capacitor C20 and terminal 3 of buck converter U3 is connected to the cathode of Schottky diode D4; A common terminal between the cathode of the Schottky diode D4 and terminal 3 of the buck converter U3 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to a common terminal between terminal 5 of the buck converter U3 and the resistor R17.

4. The network relay converter according to claim 1, characterized in that: The circuit board is also provided with a hardware reset module, which includes an NPN bipolar transistor Q2, a P-channel MOSFET transistor Q1 and a button SWITCH, wherein: The collector of the NPN bipolar transistor Q2 is connected to the common end between the resistor R7, the resistor R8 and the negative electrode of the switching diode D5, the base of the NPN bipolar transistor Q2 is connected to the common end between the resistor R12 and the resistor R9, and the emitter of the NPN bipolar transistor Q2 is connected to the positive electrode of the switching diode D5; Terminal 2 of the SWITCH button is connected to the common terminal between resistors R12 and R14; The gate of the P-channel MOSFET transistor Q1 is connected to the resistor R8, the source of the P-channel MOSFET transistor Q1 is connected to the common end between the capacitor C15, the resistor R10 and the resistor R11, and the source of the P-channel MOSFET transistor Q1 is connected to the common end between the resistor R10 and the resistor R11.

5. The network relay converter according to claim 1, characterized in that: The circuit board is also provided with an LDO power module, which includes a linear regulator U1, wherein: A capacitor C16 and a capacitor C17 are connected in parallel between terminal 1 of the linear regulator U1 and terminal 3 of the linear regulator U1; A capacitor C19 is connected in parallel between terminal 2 of the linear regulator U1 and terminal 1 of the linear regulator U1; A capacitor C18 is connected in parallel between terminal 4 of the linear regulator U1 and terminal 1 of the linear regulator U1.

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