Network switch

Abstract

The embodiment of the utility model provides a network switch, which relates to the technical field of network switches, and comprises a first circuit board and a second circuit board, a network switching module of the network switch is arranged on the first circuit board, and a data processing module is arranged on the second circuit board, the second circuit board is electrically connected with the first circuit board in a plug-in manner, so that the data processing module is electrically connected with the network switching module, and replacement of components in the network switching module and replacement of components in the data processing module do not influence each other, namely, when the components in the network switching module need to be replaced, replacement of the components in the network switching module is facilitated. According to the data processing module, the first circuit board and the second circuit board are detached, then the first circuit board is replaced, under the condition that components in the data processing module need to be replaced, the first circuit board and the second circuit board are detached, then the second circuit board is replaced, the first circuit board and the second circuit board do not need to be replaced, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of network switches, in particular to a network switch. Background Art

[0002] A network switch is a network device that is mainly used to connect multiple external devices to achieve high-speed and efficient transmission of network data between external devices.

[0003] In the prior art, all components of a network switch are arranged on a circuit board.

[0004] In the process of implementing this application, the inventors found that there are at least the following problems in the prior art: since the various components of the network switch are all set on a circuit board, when some components of the network switch need to be replaced with new components, the new components cannot match the original circuit board of the network switch, and the original circuit board needs to be replaced with a new circuit board that matches the new components, resulting in high replacement costs. Utility Model Content

[0005] The utility model provides a network switch, which at least solves the problem in the prior art that when some components of the network switch need to be replaced, the entire circuit board of the network switch needs to be replaced, resulting in high replacement costs.

[0006] In a first aspect, an embodiment of the present utility model provides a network switch, comprising a first circuit board and a second circuit board;

[0007] A network switching module is provided on the first circuit board, and the network switching module is used to be electrically connected to an external device;

[0008] A data processing module is provided on the second circuit board, and the second circuit board is electrically connected to the first circuit board by plugging, so that the data processing module is electrically connected to the network switching module.

[0009] Optionally, the first circuit board is further provided with at least one socket, and the second circuit board is further provided with at least one plug connector, and the sockets correspond to the plug connectors one-to-one; the plug connector is used to be electrically connected to the socket corresponding to the plug connector; the network switching module is electrically connected to at least one of the sockets; the plug connector corresponding to the socket electrically connected to the network switching module is electrically connected to the data processing module.

[0010] Optionally, the data processing module includes a processor, a first memory, and a second memory; the first memory is electrically connected to the processor, and the first memory is a cache of the processor; the second memory is electrically connected to the processor, and the second memory is used to store the firmware program executed by the processor; the processor is electrically connected to each of the plug connectors, and the processor is used to process the network data of the external device by executing the firmware program.

[0011] Optionally, the processor, the first memory, and the second memory are all arranged on the first side of the second circuit board, and each of the plug connectors is arranged on the second side of the second circuit board.

[0012] Optionally, the processor, the first memory, and the second memory are all arranged in a central area of the first surface of the second circuit board, and the plug connector is arranged in a boundary area of the second surface of the second circuit board.

[0013] Optionally, the data processing module further includes a radiator, and the radiator and the processor are both located in a preset area of the second circuit board, and the radiator is used to dissipate heat for the processor.

[0014] Optionally, the network switching module includes an Ethernet switching chip and multiple network interfaces; the Ethernet switching chip is electrically connected to each of the network interfaces respectively, and the Ethernet switching chip is also electrically connected to the first socket in the socket; the network interface is used to electrically connect to the external device.

[0015] Optionally, the network switching module further includes a protocol conversion chip and a test interface; the protocol conversion chip is electrically connected to the test interface, and the protocol conversion chip is also electrically connected to the second socket in the socket; the test interface is used to electrically connect to the test equipment.

[0016] Optionally, the Ethernet switching chip and each of the network interfaces are arranged on the first surface of the first circuit board, and each of the sockets is arranged on the second surface of the first circuit board.

[0017] Optionally, each of the network interfaces is arranged in a border area of the first surface of the first circuit board, the Ethernet switching chip is arranged in a central area of the first surface of the first circuit board; and the socket is arranged in a central area of the second surface of the first circuit board.

[0018] Optionally, a first power conversion module is also provided on the first circuit board, and the first power conversion module is electrically connected to the third socket in the socket, and the first power conversion module is also electrically connected to the network switching module. The first power conversion module is used to be electrically connected to the power supply to convert the voltage of the power supply signal of the power supply to supply power to the network switching module and the second circuit board; a second power conversion module is provided on the second circuit board, and the second power conversion module is electrically connected to the socket in the socket corresponding to the three sockets, and the second power conversion module is also electrically connected to the data processing module, and the second power conversion module is used to convert the voltage of the power supply signal of the first power conversion module to supply power to the data processing module.

[0019] In an embodiment of the utility model, the network switching module is responsible for receiving and sending network data of external devices, and the data processing module is responsible for data processing of network data, so as to realize the function of the network switch, and since the network switching module of the network switch is set on the first circuit board, and the data processing module is set on the second circuit board, wherein the second circuit board is electrically connected to the first circuit board by plugging, so that the data processing module is electrically connected to the network switching module, then the replacement of components in the network switching module and the replacement of components in the data processing module do not affect each other, that is, when it is necessary to replace components in the network switching module, the first circuit board and the second circuit board are detached, and then the first circuit board is replaced. When it is necessary to replace components in the data processing module, the first circuit board and the second circuit board are detached, and then the second circuit board is replaced. There is no need to replace both the first circuit board and the second circuit board, thereby reducing the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a side structural diagram of a network switch provided by an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of a top view of the first surface of the second circuit board provided by an embodiment of the present utility model;

[0023] Figure 3 This is another schematic top view of the first surface of the second circuit board provided by an embodiment of the present utility model;

[0024] Figure 4 This is a schematic top view of the second surface of the second circuit board provided by an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of a top view of the first surface of the first circuit board provided by an embodiment of the present utility model;

[0026] Figure 6 This is another schematic top view of the first surface of the first circuit board provided by an embodiment of the present utility model;

[0027] Figure 7 This is a schematic top view of the second surface of the first circuit board provided by an embodiment of the present utility model.

[0028] Reference numerals:

[0029] 10-first circuit board; 11-first side of the first circuit board; 111-central area of the first side of the first circuit board; 112-border area of the first side of the first circuit board; 12-second side of the first circuit board; 121-central area of the second side of the first circuit board; 122-border area of the second side of the first circuit board; 20-second circuit board; 21-first side of the second circuit board; 211-central area of the first side of the second circuit board; 212-border area of the first side of the second circuit board; 22-second side of the second circuit board; 221-central area of the second side of the second circuit board; 222-border area of the second side of the second circuit board; 30-network switching module; 31-Ethernet switching chip; 32-protocol conversion chip; 33-test interface; 40-data processing module; 41-processor; 42-first memory; 43-second memory. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1 An embodiment of the utility model provides a network switch, including a first circuit board 10 and a second circuit board 20; a network switching module 30 is provided on the first circuit board 10, and the network switching module 30 is used to be electrically connected to an external device; a data processing module 40 is provided on the second circuit board 20, and the second circuit board 20 is electrically connected to the first circuit board 10 by plugging, so that the data processing module 40 is electrically connected to the network switching module 30.

[0032] It should be noted that the network switching module 30 is electrically connected to the lines on the first circuit board 10, the data processing module 40 is electrically connected to the lines on the second circuit board 20, and the second circuit board 20 is electrically connected to the first circuit board 10 by plugging, so that the lines on the first circuit board 10 are electrically connected to the lines on the second circuit board 20, thereby realizing the electrical connection between the network switching module 30 and the data processing module 40.

[0033] External devices may include personal computers, laptops, servers, smartphones, tablets, network printers, routers, modems, storage devices, security devices, Voice over Internet Protocol (VoIP) phones, network cameras, industrial control equipment, network test and diagnostic equipment, smart devices and IoT devices, conference room equipment, hubs, other network switches, etc.

[0034] The network switching module 30 is responsible for receiving and sending network data from external devices. For example, the network switching module 30 is responsible for learning the Media Access Control Address (MAC) of network data and forwarding data packets, detecting transmission conflicts of network data, adapting the transmission rate of network data, encrypting and decrypting virtual private networks (VPNs), etc. The data processing module 40 is responsible for data processing of network data. For example, the data processing module 40 is responsible for executing routing decisions, Internet Protocol Address Translation (NAT), Quality of Service (QoS) rules, and other tasks for data packets of network data.

[0035] The network switching module 30 receives data packets of network data from external devices, and then performs operations such as error detection and MAC address lookup on the data packets. If the data packets require further processing (such as routing decisions, NAT, advanced QoS rules, etc.), the network switching module 30 will send the data packets to the data processing module 40 for processing via a Gigabit Media Access Control (GMAC) signal.

[0036] The data processing module 40 is also responsible for configuring the parameters of the network switching module 30, such as virtual local area network (VLAN) settings, MAC address table, QoS policy, etc. These configuration information are sent to the network switching module 30 through internal communication and executed by the network switching module 30. In addition, the data processing module 40 assigns tasks such as VPN encryption and decryption, specific types of data packet processing, etc. to the network switching module 30 for execution.

[0037] Specifically, in some embodiments, the network switch may be a gigabit network switch.

[0038] In an embodiment of the utility model, the network switching module 30 is responsible for receiving and sending network data of external devices, and the data processing module 40 is responsible for data processing of network data, so as to realize the function of the network switch. Since the network switching module 30 of the network switch is set on the first circuit board 10, and the data processing module 40 is set on the second circuit board 20, wherein the second circuit board 20 is electrically connected to the first circuit board 10 by plugging, so that the data processing module 40 is electrically connected to the network switching module 30, the replacement of components in the network switching module 30 and the replacement of components in the data processing module 40 do not affect each other, that is, when it is necessary to replace components in the network switching module 30, the first circuit board 10 and the second circuit board 20 are detached, and then the first circuit board 10 is replaced. When it is necessary to replace components in the data processing module 40, the first circuit board 10 and the second circuit board 20 are detached, and then the second circuit board 20 is replaced. There is no need to replace both the first circuit board 10 and the second circuit board 20, thereby reducing the replacement cost.

[0039] Optionally, in some embodiments, the first circuit board 10 is further provided with at least one socket, and the second circuit board 20 is further provided with at least one plug connector, and the sockets correspond to the plug connectors one-to-one; the plug connector is used to be electrically connected to the socket corresponding to the plug connector; the network switching module 30 is electrically connected to at least one of the sockets; the plug connector corresponding to the socket electrically connected to the network switching module 30 is electrically connected to the data processing module 40.

[0040] Specifically, the plug connector may be a plug connector with double-row pins, and the socket may be a socket with double-row pins.

[0041] In some embodiments, the first circuit board 10 is provided with four sockets, namely socket 51, socket 52, socket 53, and socket 54, and the second circuit board 20 is provided with four plug connectors, namely plug connector 61, plug connector 62, plug connector 63, and plug connector 64; by inserting the plug connector 61 into the socket 51, the socket 51 is electrically connected to the plug connector 61; by inserting the plug connector 62 into the socket 52, the socket 52 is electrically connected to the plug connector 62; by inserting the plug connector 63 into the socket 53, the socket 53 is electrically connected to the plug connector 63; by inserting the plug connector 64 into the socket 54, the socket 54 is electrically connected to the plug connector 64; the network switching module 30 is electrically connected to the socket 51, socket 53, and socket 54, respectively, and the data processing module 40 is electrically connected to the plug connector 61, socket 62, plug connector 63, and plug connector 64, respectively.

[0042] In the embodiment of the present utility model, the network switching module 30 and the data processing module 40 can be electrically connected by electrically connecting a plug connector corresponding to the plug socket electrically connected to the network switching module 30 to the data processing module 40 .

[0043] Optional, see Figure 2 In some embodiments, the data processing module 40 includes a processor 41, a first memory 42, and a second memory 43; the first memory 42 is electrically connected to the processor 41, and the first memory 42 is a cache of the processor 41; the second memory 43 is electrically connected to the processor 41, and the second memory 43 is used to store the firmware program executed by the processor 41; the processor 41 is electrically connected to each of the plug connectors, and the processor 41 is used to process the network data of the external device by executing the firmware program.

[0044] Specifically, in some embodiments, the first memory 42 is a double data rate synchronous dynamic random access memory (DDR), such as a DDR with a capacity of 512MB; the second memory 43 is a non-volatile storage device, such as a NAND FLASH (a non-volatile storage device) with a capacity of 256MB.

[0045] In the embodiment of the present invention, the network data of the external device can be processed by the cooperation of the processor 41, the first memory 42 and the second memory 43.

[0046] Optionally, in some embodiments, the processor 41 , the first memory 42 , and the second memory 43 are all disposed on the first side 21 of the second circuit board 20 , and each of the plug connectors is disposed on the second side 22 of the second circuit board 20 .

[0047] In an embodiment of the present invention, by arranging the processor 41, the first memory 42, and the second memory 43 on the first surface 21 of the second circuit board 20, and arranging each plug connector on the second surface 22 of the second circuit board 20, it is beneficial to the miniaturized design of the second circuit board 20 and to the plugging of the second circuit board 20 with the first circuit board 10.

[0048] Optionally, in some embodiments, the processor 41, the first memory 42, and the second memory 43 are all arranged in the central area 211 of the first surface 21 of the second circuit board 20, and the plug connector is arranged in the boundary area 222 of the second surface 22 of the second circuit board 20.

[0049] Specifically, in some embodiments, referring to Figure 3 The first surface 21 of the second circuit board 20 includes a central area 211 of the first surface 21 of the second circuit board 20 and a boundary area 212 of the first surface 21 of the second circuit board 20. The processor 41, the first memory 42, and the second memory 43 are all arranged in the central area 211 of the first surface 21 of the second circuit board 20; Figure 4 The second surface 22 of the second circuit board 20 includes a central area 221 of the second surface 22 of the second circuit board 20 and a boundary area 222 of the second surface 22 of the second circuit board 20. Four plug connectors are provided on the second circuit board 20, namely, a plug connector 61, a plug connector 62, a plug connector 63, and a plug connector 64. The plug connector 61, the plug connector 62, the plug connector 63, and the plug connector 64 are all provided in the boundary area 222 of the second surface 22 of the second circuit board 20.

[0050] In an embodiment of the present utility model, by arranging the processor 41, the first memory 42, and the second memory 43 in the central area 211 of the first surface 21 of the second circuit board 20, it is beneficial to protect the processor 41, the first memory 42, and the second memory 43 compared to arranging the processor 41, the first memory 42, and the second memory 43 in the boundary area 212 of the first surface 21 of the second circuit board 20; by arranging the plug connector in the boundary area 222 of the second surface 22 of the second circuit board 20, it is beneficial to the plugging of the second circuit board 20 and the first circuit board 10, and the combination of the second circuit board 20 and the first circuit board 10 after plugging is made more stable.

[0051] Optional, see Figure 3In some embodiments, the data processing module 40 further includes a heat sink. The heat sink and the processor 41 are both located in a preset area of the second circuit board 20 , and the heat sink is used to dissipate heat for the processor 41 .

[0052] Specifically, in some embodiments, the heat sink and the processor 41 are stacked, for example, the heat sink is attached to a preset area of the first surface 21 of the second circuit board 20, and the processor 41 is attached to the heat sink.

[0053] In the embodiment of the present invention, the heat dissipation for the processor 41 is performed by a radiator, and the processor 41 is protected from over-temperature.

[0054] Optionally, in some embodiments, the network switching module 30 includes an Ethernet switching chip 31 and multiple network interfaces; the Ethernet switching chip 31 is electrically connected to each of the network interfaces respectively, and the Ethernet switching chip 31 is also electrically connected to the first socket in the socket; the network interface is used to electrically connect to the external device.

[0055] Specifically, in some embodiments, referring to Figure 5 The network switching module 30 includes an Ethernet switching chip 31 and five network interfaces. The five network interfaces are divided into a network interface 34a and four network interfaces 34b. The network interface 34a is a gigabit media access control interface, and the network interface 34b is a network switching interface. For example, the network interface 34b is an RJ45 port (a standardized interface) or a small form-factor pluggable transceiver (SFP+) port. The Ethernet switching chip 31 is electrically connected to the network interface 34a and the four network interfaces 34b respectively; Figure 7 The first circuit board 10 is provided with four sockets, namely socket 51, socket 52, socket 53 and socket 54, among which socket 51 and socket 53 are first sockets, and the Ethernet switching chip 31 is also electrically connected to the socket 51 and socket 53 respectively.

[0056] In the embodiment of the present utility model, the Ethernet switching chip 31 can realize the reception and transmission of network data of the external device.

[0057] Optionally, in some embodiments, the network switching module 30 further includes a protocol conversion chip 32 and a test interface 33; the protocol conversion chip 32 is electrically connected to the test interface 33, and the protocol conversion chip 32 is also electrically connected to the second socket in the socket; the test interface 33 is used to electrically connect to the test equipment.

[0058] Specifically, in some embodiments, the protocol conversion chip 32 may be an RS485 protocol (a serial communication protocol) conversion chip, configured to convert RS485 protocol signals into UART (universal asynchronous receiver-transmitter) protocol signals.

[0059] Reference Figure 7 The first circuit board 10 is provided with four sockets, namely socket 51, socket 52, socket 53, and socket 54, wherein socket 54 is the second socket, and the protocol conversion chip 32 is electrically connected to the socket 54.

[0060] In an embodiment of the present utility model, the test device is electrically connected to the test equipment through the test interface 33, the signal protocol conversion is performed through the protocol conversion chip 32, and the second socket and the plug connector corresponding to the second socket are electrically connected to the second circuit board 20, so that the test equipment can test the network switch.

[0061] Optionally, in some embodiments, the Ethernet switching chip 31 and each of the network interfaces are disposed on the first surface 11 of the first circuit board 10 , and each of the sockets is disposed on the second surface 12 of the first circuit board 10 .

[0062] In an embodiment of the present invention, by arranging the Ethernet switching chip 31 and each network interface on the first side 11 of the first circuit board 10, and arranging each socket on the second side 12 of the first circuit board 10, it is beneficial to the miniaturized design of the first circuit board 10 and to the plugging of the second circuit board 20 with the first circuit board 10.

[0063] Optionally, in some embodiments, each of the network interfaces is arranged in the boundary area 112 of the first side 11 of the first circuit board 10, the Ethernet switching chip 31 is arranged in the central area 111 of the first side 11 of the first circuit board 10; and the socket is arranged in the central area 121 of the second side 12 of the first circuit board 10.

[0064] Specifically, in some embodiments, referring to Figure 6The first side 11 of the first circuit board 10 includes a central area 111 of the first side 11 of the first circuit board 10 and a border area 112 of the first side 11 of the first circuit board 10. The network switching module 30 includes an Ethernet switching chip 31 and five network interfaces. The five network interfaces are divided into a network interface 34a and four network interfaces 34b. The network interface 34a is a gigabit media access control interface, and the network interface 34b is a network switching interface. For example, the network interface 34b is an RJ45 port (a standardized interface) or a small form-factor pluggable transceiver (SFP+) port. The network interface 34a and the four network interfaces 34b are both arranged in the border area 112 of the first side 11 of the first circuit board 10, specifically in the border area near one side of the first side 11 of the first circuit board 10. The Ethernet switching chip 31 is arranged in the central area 111 of the first side 11 of the first circuit board 10.

[0065] The network switch of the embodiment of the present invention provides a gigabit media access control interface to meet networking requirements, and provides four network switching interfaces to achieve the interconnection of four or less external devices.

[0066] Reference Figure 7 The second surface 12 of the first circuit board 10 includes a central area 121 of the second surface 12 of the first circuit board 10 and a boundary area 122 of the second surface 12 of the first circuit board 10. The first circuit board 10 is provided with four sockets, namely, a socket 51, a socket 52, a socket 53, and a socket 54. The socket 51, the socket 52, the socket 53, and the socket 54 are all arranged in the central area 121 of the second surface 12 of the first circuit board 10.

[0067] In an embodiment of the present invention, by arranging each network interface in the boundary area 112 of the first surface 11 of the first circuit board 10, it is facilitated to electrically connect the network interface with the external device; by arranging the Ethernet switching chip 31 in the central area 111 of the first surface 11 of the first circuit board 10, it is facilitated to protect the Ethernet switching chip 31 compared to arranging the Ethernet switching chip 31 in the boundary area 112 of the first surface 11 of the first circuit board 10; by arranging the socket in the central area 121 of the second surface 12 of the first circuit board 10, the second circuit board 20 is arranged in the central area 121 of the second surface 12 of the first circuit board 10 by being plugged in, which is facilitated to protect the components of the second circuit board 20 compared to arranging the socket in the boundary area 122 of the second surface 12 of the first circuit board 10, so that the second circuit board 20 is arranged in the boundary area 122 of the second surface 12 of the first circuit board 10 by being plugged in.

[0068] Optionally, in some embodiments, a first power conversion module is also provided on the first circuit board 10, and the first power conversion module is electrically connected to the third socket in the socket, and the first power conversion module is also electrically connected to the network switching module 30. The first power conversion module is used to be electrically connected to the power supply to convert the voltage of the power supply signal of the power supply to supply power to the network switching module 30 and the second circuit board 20; a second power conversion module is provided on the second circuit board 20, and the second power conversion module is electrically connected to the socket corresponding to the three sockets in the socket, and the second power conversion module is also electrically connected to the data processing module 40, and the second power conversion module is used to convert the voltage of the power supply signal of the first power conversion module to supply power to the data processing module 40.

[0069] It should be noted that some or all of the first, second and third sockets are the same sockets, or the first, second and third sockets are different sockets, which is not limited here.

[0070] Specifically, in some embodiments, the first power conversion module is used to provide a power supply signal with a voltage value of 5.2 volts to the second circuit board 20, and the second power conversion module is used to provide a power supply signal with a voltage value of 1.1 volts, a power supply signal with a voltage value of 3.3 volts and a power supply signal with a voltage value of 1.8 volts to the processor 41.

[0071] In an embodiment of the present utility model, power is supplied to the network switching module 30 and the second circuit board 20 through the first power conversion module, and power is supplied to the data processing module 40 through the second power conversion module on the basis of the power supplied to the second circuit board 20 by the first power conversion module, so as to realize power supply of the network switch.

[0072] In some embodiments, the first side 11 of the first circuit board 10 is provided with an Ethernet switching chip 31, a network interface 34a, four network interfaces 34b, a protocol conversion chip 32, a test interface 33, and a first power conversion module, and the first side 21 of the second circuit board 20 is provided with a processor 41, a first memory 42, a second memory 43, and a second power conversion module;

[0073] The second side 12 of the first circuit board 10 is provided with four sockets, namely, socket 51, socket 52, socket 53, and socket 54. The second side 22 of the second circuit board 20 is provided with four plug connectors, namely, plug connector 61, plug connector 62, plug connector 63, and plug connector 64. By inserting the plug connector 61 into the socket 51, the socket 51 is electrically connected to the plug connector 61; by inserting the plug connector 62 into the socket 52, the socket 52 is electrically connected to the plug connector 62; by inserting the plug connector 63 into the socket 53, the socket 53 is electrically connected to the plug connector 63; by inserting the plug connector 64 into the socket 54, the socket 54 is electrically connected to the plug connector 64;

[0074] The Ethernet switching chip 31 is electrically connected to the network interface 34a and each network interface 34b respectively, and the Ethernet switching chip 31 is also electrically connected to the socket 51 and the socket 53 respectively; the protocol conversion chip 32 is electrically connected to the test interface 33, and the protocol conversion chip 32 is electrically connected to the socket 54; the first power conversion module is electrically connected to the Ethernet switching chip 31 and the protocol conversion chip 32 respectively, and the first power conversion module is electrically connected to the socket 51;

[0075] The processor 41 is electrically connected to the first memory 42 and the second memory 43 respectively, and the processor 41 is also electrically connected to the plug connector 61, the plug connector 62, the plug connector 63, and the plug connector 64 respectively; the second power conversion module is electrically connected to the processor 41, the first memory 42, and the second memory 43 respectively, and the second power conversion module is also electrically connected to the plug connector 61.

[0076] The Ethernet switching chip 31 is responsible for receiving and sending network data from external devices. For example, the Ethernet switching chip 31 is responsible for learning the media access control address (MAC) of network data and forwarding data packets, detecting transmission conflicts of network data, adapting the transmission rate of network data, encrypting and decrypting virtual private networks (VPN), etc. The processor 41 is responsible for data processing of network data. For example, the processor 41 is responsible for executing routing decisions, Internet Protocol address (IP address) conversion (NAT, Network Address Translation), Quality of Service (QoS, Quality of Service) rules and other tasks for data packets of network data.

[0077] The Ethernet switch chip 31 receives data packets of network data from external devices, and then performs operations such as error detection and MAC address lookup on the data packets. If the data packets require further processing (such as routing decisions, NAT, advanced QoS rules, etc.), the Ethernet switch chip 31 will send the data packets to the processor 41 for processing via a Gigabit Media Access Control (GMAC) signal.

[0078] The processor 41 is also responsible for configuring the parameters of the Ethernet switch chip 31, such as virtual local area network (VLAN) settings, MAC address table, QoS policy, etc. These configuration information are sent to the Ethernet switch chip 31 through internal communication and executed by the Ethernet switch chip 31. In addition, the processor 41 assigns tasks such as VPN encryption and decryption, specific types of data packet processing, etc. to the Ethernet switch chip 31 for execution.

[0079] In the related art, in order to expand more external devices in a local area network, the network interfaces of the network switch are increased, resulting in an increase in the size and weight of the network switch. In addition, in order to make the number of network interfaces of the network switch meet actual needs, the number of network interfaces of the network switch is redundant, resulting in a waste of network interface resources.

[0080] In an embodiment of the present invention, by interconnecting multiple network switches, the number of network interfaces can be expanded to meet actual needs. Compared with related technologies, the method of expanding the number of network interfaces is convenient, reduces the volume and weight of the network switch, and avoids the waste of resources caused by network decoupling due to network interface redundancy.

[0081] In addition, the network switch provided by the embodiment of the present invention has a network switching module 30 disposed on a first circuit board 10, and a data processing module 40 disposed on a second circuit board 20. The second circuit board 20 is electrically connected to the first circuit board 10 by plugging, so that the data processing module 40 and the network switching module 30 are electrically connected, thereby achieving mutual independence of the data processing module 40 and the network switching module 30. This can meet the flexible and convenient requirements of smart interconnection in the industrial control industry, and the firmware update of the data processing module 40 and the firmware update of the network switching module 30 do not interfere with each other. Various customized designs can be based on existing designs. For example, if it is necessary to replace a component in the network switching module 30, the first circuit board 10 and the second circuit board 20 are detached, and then the first circuit board 10 is replaced. If it is necessary to replace a component in the data processing module 40, the first circuit board 10 and the second circuit board 20 are detached, and then the second circuit board 20 is replaced. The network switch of the embodiment of the present invention has low-power power management, which can easily meet low-power usage scenarios.

[0082] To sum up, in the embodiment of the present utility model, the network switching module 30 is responsible for receiving and sending network data of the external device, and the data processing module 40 is responsible for data processing of the network data, so as to realize the function of the network switch, and since the network switching module 30 of the network switch is set on the first circuit board 10, and the data processing module 40 is set on the second circuit board 20, wherein the second circuit board 20 is electrically connected to the first circuit board 10 by plugging, so that the data processing module 40 is electrically connected to the network switching module 30, then the replacement of components in the network switching module 30 and the replacement of components in the data processing module 40 do not affect each other, that is, when it is necessary to replace components in the network switching module 30, the first circuit board 10 and the second circuit board 20 are detached, and then the first circuit board 10 is replaced. When it is necessary to replace components in the data processing module 40, the first circuit board 10 and the second circuit board 20 are detached, and then the second circuit board 20 is replaced. There is no need to replace both the first circuit board 10 and the second circuit board 20, thereby reducing the replacement cost.

[0083] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprise" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article, or terminal device.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0085] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A network switch, characterized in that: It comprises a first circuit board (10) and a second circuit board (20); A network switching module (30) is provided on the first circuit board (10), and the network switching module (30) is used for electrically connecting to an external device; A data processing module (40) is provided on the second circuit board (20), and the second circuit board (20) is electrically connected to the first circuit board (10) by plugging, so that the data processing module (40) is electrically connected to the network switching module (30).

2. The network switch according to claim 1, wherein: The first circuit board (10) is further provided with at least one socket, and the second circuit board (20) is further provided with at least one plug connector, and the sockets correspond to the plug connectors one-to-one; The plug connector is used to be electrically connected to the socket corresponding to the plug connector; The network switching module (30) is electrically connected to at least one of the sockets; A plug connector corresponding to the plug socket electrically connected to the network switching module (30) is electrically connected to the data processing module (40).

3. The network switch according to claim 2, wherein: The data processing module (40) includes a processor (41), a first memory (42), and a second memory (43); The first memory (42) is electrically connected to the processor (41), and the first memory (42) is a cache of the processor (41); The second memory (43) is electrically connected to the processor (41), and the second memory (43) is used to store a firmware program executed by the processor (41); The processor (41) is electrically connected to each of the plug connectors, and the processor (41) is used to process the network data of the external device by executing the firmware program.

4. The network switch according to claim 3, wherein: The processor (41), the first memory (42), and the second memory (43) are all arranged on the first surface (21) of the second circuit board (20), and each of the plug connectors is arranged on the second surface (22) of the second circuit board (20).

5. The network switch according to claim 4, wherein: The processor (41), the first memory (42), and the second memory (43) are all arranged in a central area (211) of the first surface (21) of the second circuit board (20), and the plug connector is arranged in a boundary area (222) of the second surface (22) of the second circuit board (20).

6. The network switch according to claim 3, wherein: The data processing module (40) further comprises a radiator, wherein the radiator and the processor (41) are both located in a preset area of the second circuit board (20), and the radiator is used to dissipate heat for the processor (41).

7. The network switch according to claim 2, wherein: The network switching module (30) includes an Ethernet switching chip (31) and a plurality of network interfaces; The Ethernet switching chip (31) is electrically connected to each of the network interfaces respectively, and the Ethernet switching chip (31) is also electrically connected to a first socket in the sockets; The network interface is used for electrically connecting to the external device.

8. The network switch according to claim 7, wherein: The network switching module (30) further includes a protocol conversion chip (32) and a test interface (33); The protocol conversion chip (32) is electrically connected to the test interface (33), and the protocol conversion chip (32) is also electrically connected to a second socket in the socket; The test interface (33) is used for electrical connection with a test device.

9. The network switch according to claim 7, wherein: The Ethernet switching chip (31) and each of the network interfaces are arranged on the first surface (11) of the first circuit board (10), and each of the sockets is arranged on the second surface (12) of the first circuit board (10).

10. The network switch according to claim 9, wherein: Each of the network interfaces is arranged in a border area (112) of the first surface (11) of the first circuit board (10), and the Ethernet switching chip (31) is arranged in a central area (111) of the first surface (11) of the first circuit board (10); The socket is arranged in a central area (121) of the second surface (12) of the first circuit board (10).

11. The network switch according to claim 2, wherein: A first power conversion module is also provided on the first circuit board (10), the first power conversion module being electrically connected to the third socket in the socket, and the first power conversion module being electrically connected to the network switching module (30), the first power conversion module being used to be electrically connected to a power source and convert the voltage of a power supply signal of the power source to supply power to the network switching module (30) and the second circuit board (20); A second power conversion module is provided on the second circuit board (20), the second power conversion module being electrically connected to the plug connector corresponding to the three plug sockets in the plug connector, the second power conversion module being also electrically connected to the data processing module (40), and the second power conversion module being used to convert the voltage of the power supply signal of the first power conversion module to supply power to the data processing module (40).

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