CN221010157U - Ethernet switch device with power output function - Google Patents

Abstract

The utility model discloses an Ethernet switch device with a power output function, including a power supply unit, a switching unit, and an interface unit. At the switch power input interface, the input power is divided and isolated, and then output through the interface protection to provide a 12VDC power supply commonly used for switching to the outside; the 3.3VDC power supply inside the switch is divided and isolated, and then output through the interface protection to provide a 3.3VDC power supply commonly used for sensors to the outside. This device utilizes the power input circuit system of the switch itself, and by adding a branching, isolation and interface protection circuit, the switch can provide a power output function on the basis of realizing data access exchange, saving a set of external power adapter devices for the intelligent sensor equipment connected thereto; on the one hand, it saves the system implementation cost, and on the other hand, it saves the installation space due to the reduction of an external device, thereby improving the convenience of engineering implementation.

Description

An Ethernet switch device with power output function

Technical Field

The utility model relates to the technical field of integrated power supply, in particular to an Ethernet switch device with a power output function.

Background technique

At the edge nodes of the Internet of Things, smart devices are generally connected to Ethernet switches through network cables to achieve data transmission. In this system, the following devices are often used:

1. Ethernet switch equipment and its power supply equipment;

2. Intelligent sensing equipment with POE power supply;

3. Or intelligent sensor equipment and its power supply equipment that do not have POE power supply.

IoT edge nodes are at the edge of the network. There are a huge number of devices in the entire network, and the equipment installation environment is complex. They often encounter problems such as difficulty in obtaining power and small installation space. When smart sensor devices do not have POE function, device access requires additional power adapter modules. On the one hand, the construction cost increases, and on the other hand, the construction space requirements are also larger, which brings a lot of inconvenience to the construction.

Summary of the invention

The utility model aims to provide an Ethernet switch device with a power output function to solve the deficiencies of the prior art.

The utility model is implemented by the following technical scheme: an Ethernet switch device with power output function, including a power supply unit, a switching unit, and an interface unit, wherein the power supply unit includes a 12V power supply module and a DC-DC power supply module connected to each other; the switching unit includes a CPU main control module, a FLASH storage module, a DDR cache module, a clock module, a PHY physical interface chip, and an RS232 module, wherein the CPU main control module is electrically connected to the FLASH storage module, the DDR cache module, the clock module, the RS232 module, and the PHY physical interface chip; the interface unit includes a 24V power input interface, an LED indicator light, an RJ45/SFP Ethernet interface, and a RESET module; wherein, The output end of the 24V power input interface is connected to the 12V power module, the output end of the DC-DC power module is connected to the switching unit, the CPU main control module is connected to the LED indicator light and the RESET module, the PHY physical interface chip is connected to the RJ45/SFP Ethernet interface, and a 12V DC output interface and a 3.3V DC output interface are also provided in the interface unit. A first shunt module is provided between the 12V power module and the DC-DC power module, and a second shunt module is provided between the DC-DC power module and the switching unit. The first shunt module is connected to the 12V DC output interface through a first isolation protection module, and the second shunt module is connected to the 3.3V DC output interface through a second isolation protection module.

Furthermore, the DC-DC power supply module outputs 3.3V DC power to the second branch module.

Furthermore, the CPU main control module is a single chip microcomputer.

Furthermore, the PHY physical interface chip model is DP83848CVV.

Furthermore, the FLASH storage module model is AT24C02, FM24C02 or CAT24C02.

Furthermore, the first branch module is LM46001PWP and the second branch module is MIC49300.

Furthermore, the first isolation protection module HM4801 and the second isolation protection module are of model HM9709.

Advantages of the utility model:

This device utilizes the power input circuit system of the switch itself, and by adding branching, isolation and interface protection circuits, enables the switch to provide power output function on the basis of realizing data access exchange, saving a set of external power adapter devices for the intelligent sensor equipment connected to it; on the one hand, it saves system implementation costs, and on the other hand, it also saves installation space by reducing an external device, thereby improving the convenience of project implementation.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a block diagram of a switch in the prior art;

FIG2 is a principle block diagram of an Ethernet switch device with a power output function according to an embodiment of the present utility model;

FIG3 is a comparison diagram of an Ethernet switch device with a power output function according to an embodiment of the present invention and a conventional device.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

As shown in Figure 1, it is a principle block diagram of an existing switch, including a power supply unit, a switching unit, and an interface unit. The power supply unit includes a 12V power supply module and a DC-DC power supply module connected to each other; the switching unit includes a CPU main control module, a FLASH storage module, a DDR cache module, a clock module, a PHY physical interface chip, and an RS232 module. The CPU main control module is electrically connected to the FLASH storage module, the DDR cache module, the clock module, the RS232 module, and the PHY physical interface chip; the interface unit includes a 24V power input interface, an LED indicator, an RJ45/SFP Ethernet interface, and a RESET module; wherein the output end of the 24V power input interface is connected to the 12V power supply module, the output end of the DC-DC power supply module is connected to the switching unit, the CPU main control module is connected to the LED indicator and the RESET module, and the PHY physical interface chip is connected to the RJ45/SFP Ethernet interface.

As shown in Figure 2, it is a principle block diagram of the utility model. Based on the principle block diagram of the above-mentioned existing switch, a 12V DC output interface and a 3.3V DC output interface are further provided in the interface unit, a first shunt module is provided between the 12V power supply module and the DC-DC power supply module, and a second shunt module is provided between the DC-DC power supply module and the switching unit. The first shunt module is connected to the 12V DC output interface through a first isolation protection module, and the second shunt module is connected to the 3.3V DC output interface through a second isolation protection module.

In this embodiment, the DC-DC power supply module outputs 3.3V DC power to the second branch module.

In this embodiment, the CPU main control module is a single chip microcomputer.

In this embodiment, the model of the PHY physical interface chip is DP83848CVV.

In this embodiment, the FLASH storage module model is AT24C02, FM24C02 or CAT24C02.

In this embodiment, the first branch module is LM46001PWP (12VDC output) and the second branch module is MIC49300 (3.3VDC output).

In this embodiment, the first isolation protection module is HM4801 (12 VDC output) and the second isolation protection module is HM9709 (3.3 VDC output).

The utility model designs a new switch device, which can add a power output function on the basis of the conventional switch function. When connected to the intelligent sensor device, it can provide power supply for the intelligent sensor device, saving the external power adapter module required by the intelligent sensor device, saving the cost and space for equipment installation. The main implementation scheme is:

At the switch power input interface, the input power is split and isolated, and then output through the interface protection to provide the commonly used 12VDC power supply for switching.

The 3.3VDC power supply inside the switch is divided and isolated, and then output through the interface protection to provide the 3.3VDC power supply commonly used by sensors.

As shown in Figure 3, this device uses the power input circuit system of the switch itself, and by adding shunt, isolation and interface protection circuits, the switch can provide power output function on the basis of realizing data access exchange, saving a set of external power adapter devices for the intelligent sensor equipment connected to it; on the one hand, it saves system implementation costs, and on the other hand, it also saves installation space by reducing an external device. The convenience of project implementation is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 (7)

1. The Ethernet switch device with the power output function comprises a power supply unit, a switching unit and an interface unit, wherein the power supply unit comprises a 12V power supply module and a DC-DC power supply module which are connected; the exchange unit comprises a CPU main control module, a FLASH storage module, a DDR cache module, a clock module, a PHY physical interface chip and an RS232 module, wherein the CPU main control module is electrically connected with the FLASH storage module, the DDR cache module, the clock module, the RS232 module and the PHY physical interface chip; the interface unit comprises a 24V power input interface, an LED indicator lamp, an RJ45/SFP Ethernet interface and a RESET module; the device is characterized in that a 12V direct current output interface and a 3.3V direct current output interface are further arranged in the interface unit, a first shunt module is arranged between the 12V power module and the DC-DC power module, a second shunt module is arranged between the DC-DC power module and the exchange unit, the first shunt module is connected with the 12V direct current output interface through a first isolation protection module, and the second shunt module is connected with the 3.3V direct current output interface through a second isolation protection module.

2. An ethernet switch device with a power output function as claimed in claim 1, wherein said DC-DC power module outputs 3.3V DC power to the second splitting module.

3. The ethernet switch device with power output function according to claim 1, wherein the CPU master control module is a single chip microcomputer.

4. The ethernet switch device with power output function as claimed in claim 1, wherein the PHY physical interface chip model is DP83848CVV.

5. The ethernet switch device with power output function according to claim 1, wherein the FLASH memory module is AT24C02, FM24C02 or CAT24C02.

6. The ethernet switch device with power output function according to claim 1, wherein the first splitter module LM46001PWP and the second splitter module model number is MIC49300.

7. The ethernet switch device with power output function according to claim 1, wherein the first and second insulation protection modules HM4801 and HM9709 are respectively.