Switch power supply device and switch

Abstract

The utility model discloses a switch power supply device and a switch, and relates to the technical field of switches, the switch power supply device comprises a first-stage module and a second-stage module, the first-stage module is used for connecting and outputting a pluggable POE power supply and a pluggable non-POE power supply, and the second-stage module is used for connecting and outputting the pluggable POE power supply and the pluggable non-POE power supply; the second-stage module is used for accessing the non-pluggable POE power supply, the non-pluggable non-POE power supply and an output power supply of the first-stage module, converting the power supply accessed to the second-stage module into a power supply suitable for power receiving equipment and outputting the power supply, and the first-stage module is electrically connected with the second-stage module. According to the technical scheme of the utility model, the pluggable POE power supply and the pluggable non-POE power supply are connected through arranging the first-stage module, the non-pluggable POE power supply, the non-pluggable non-POE power supply and the output power supply of the first-stage module are connected through arranging the second-stage module, and finally the second-stage module outputs the power supply or the communication power supply to the downstream power receiving equipment. And the compatibility of the switch to the power supply is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, and particularly relates to a switch power supply device and a switch. Background Technique

[0002] With the rapid development of computer communication technology, gateways, as the key hubs connecting different computer networks or devices, play a crucial role. They are also known as internetwork connectors or protocol converters and play an indispensable role not only in the interconnection of wide area networks but also in the interconnection of local area networks. The core function of a gateway is to achieve information transfer between different communication protocols, data formats, or languages to ensure the smooth flow of network information.

[0003] Among many gateway devices, switches have obvious advantages over many gateway devices in terms of network performance, management functions, scalability, etc., and thus have become an important part of modern network infrastructure. The power supply methods of switches are diverse and mainly divided into POE (Power over Ethernet) power supplies and non-POE power supplies. In addition, according to different power connection methods, switches can also be divided into two types: pluggable power supplies and non-pluggable power supplies. However, existing switch motherboards often only support one of the power supply forms and have poor compatibility with power supplies. With the wide popularization of intelligent terminals and the diversification of application scenarios, a single power supply method has been difficult to meet the needs of intelligent terminals in different environments. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a switch power supply device and a switch, aiming to improve the compatibility of the switch with power supplies.

[0005] To achieve the above purpose, the switch power supply device proposed by the utility model includes a first-stage module and a second-stage module. The first-stage module is used to access and output pluggable POE power supplies and pluggable non-POE power supplies. The second-stage module is used to access non-pluggable POE power supplies, non-pluggable non-POE power supplies, and the output power of the first-stage module, and convert the power supplies accessed by the second-stage module into power supplies suitable for power-consuming devices and output them. The first-stage module is electrically connected to the second-stage module.

[0006] In an embodiment, the first-stage module has a power transfer board, and the power transfer board is used to access and output pluggable POE power supplies and pluggable non-POE power supplies;

[0007] The power transfer board is provided with a pluggable POE power input interface and a pluggable non-POE power input interface. The power transfer board is also provided with a power supply output interface, a first communication power output interface, and a second communication power output interface.

[0008] In one embodiment, the second-level module includes: a PSE power supply board and a switching service main board. The PSE power supply board is provided with a power supply input interface, and the switching service main board is provided with a first communication power input interface and a second communication power input interface. The switch power supply device further includes a first power supply cable, a second power supply cable, a first connection cable, a second connection cable, and a third connection cable;

[0009] The first connection cable connects the power supply output interface and the power supply input interface, the second connection cable connects the first communication power output interface and the first communication power input interface, and the third connection cable connects the second communication power output interface and the second communication power input interface;

[0010] The first power supply cable is connected to the power supply input interface or the first power supply cable is connected to the power supply input interface, for connecting a non-removable POE power supply to the switching service main board, and the second power supply cable is connected to the second communication power input interface, for connecting a non-removable non-POE power supply to the switching service main board;

[0011] The PSE power supply board is used to convert the power input to the PSE power supply board into a power supply suitable for the powered device and output it;

[0012] The switching service main board is used to convert the power input to the switching service main board into a communication power supply suitable for the powered device and output it.

[0013] In one embodiment, the switch power supply device further has a power control signal cable. The power transfer board is further provided with a first power control signal interface, and the switching service main board is further provided with a second power control signal interface. The power control signal cable connects the first power control signal interface and the second power control signal interface.

[0014] In one embodiment, the switching service main board is further provided with a first-stage DC-DC conversion module and a second-stage DC-DC conversion module. The first-stage DC-DC conversion module is used to step down the power input to the first-stage DC-DC conversion module and output it, and the second-stage DC-DC conversion module is used to step down the power input to the second-stage DC-DC conversion module and output it;

[0015] The first communication power input interface, the first-stage DC-DC conversion module, the first-stage DC-DC conversion module, and the second-stage DC-DC conversion module are connected in sequence, and the second communication power input interface is connected to the second-stage DC-DC conversion module end.

[0016] In one embodiment, the switching service main board is further provided with a switching service chip and a switching service circuit. The second-level DC-DC conversion module is connected to the switching service chip and is also connected to the switching service circuit.

[0017] In one embodiment, the first-level DC-DC conversion module is an isolated DC-DC converter, and / or the second-level DC-DC conversion module is a non-isolated DC-DC converter.

[0018] In one embodiment, the switch power supply device further includes a fan circuit board, and the fan circuit board is electrically connected to the third connection cable.

[0019] In one embodiment, the power transfer board includes a first power transfer board and a second power transfer board. The first power transfer board is provided with the pluggable POE power interface, the power supply output interface, and the first communication power output interface. The second power transfer board is provided with the pluggable non-POE power interface and the second communication power output interface.

[0020] The present utility model also provides a switch, and the switch includes the switch power supply device described in any one of the above.

[0021] The switch power supply device provided by the present utility model includes a first-level module and a second-level module. The first-level module is used to access the pluggable POE power supply and the pluggable non-POE power supply and output them. The second-level module is used to access the non-pluggable POE power supply, the non-pluggable non-POE power supply, and the output power supply of the first-level module, and convert the power supply accessed by the second-level module into a power supply suitable for the powered device and output it. The first-level module is electrically connected to the second-level module. The technical solution of the present utility model improves the compatibility of the switch with the power supply by setting the first-level module to access the pluggable POE power supply and the pluggable non-POE power supply, setting the second-level module to access the non-pluggable POE power supply, the non-pluggable non-POE power supply, and the output power supply of the first-level module, and finally the second-level module outputs the power supply or communication power supply to the downstream powered device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 FIG. is a schematic structural diagram of an embodiment of the switch power supply device provided by the present utility model;

[0024] Figure 2 Structural schematic diagram of an embodiment of the power transfer board of the switch power supply device provided by the present utility model;

[0025] Figure 3 Structural schematic diagram of an embodiment of the switching service main board of the switch power supply device provided by the present utility model;

[0026] Figure 4 Structural schematic diagram of another embodiment of the switch power supply device provided by the present utility model;

[0027] Figure 5 Structural schematic diagram of yet another embodiment of the switch power supply device provided by the present utility model.

[0028] Explanation of the reference numerals in the attached drawings:

[0029] 1. First - stage module; 11. Power transfer board; 111. Removable POE power input interface; 112. Removable non - POE power input interface; 113. Power supply output interface; 1131. First connection cable; 114. First communication power output interface; 1141. Second connection cable; 115. Second communication power output interface; 1151. Third connection cable; 116. First power control signal interface; 1161. First power control signal cable; 117. First power transfer board; 118. Second power transfer board; 119. Third power control signal interface; 1191. Third power control signal cable; 2. Second - stage module; 21. PSE power supply board; 211. Power supply input interface; 22. Switching service main board; 221. First communication power input interface; 222. Second communication power input interface; 223. First - stage DC - DC conversion module; 224. Second - stage DC - DC conversion module; 225. Switching service chip; 226. Switching service circuit; 227. Second power control signal interface; 3. Non - removable POE power supply; 31. First power supply cable; 4. Non - removable non - POE power supply; 41. Second power supply cable; 5. Fan circuit board; 6. Removable POE power supply; 7. Removable non - POE power supply.

[0030] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the attached drawings. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The present utility model provides a power supply device for a switch. Please refer to Figure 1 , in an embodiment of the present utility model, the power supply device for the switch includes a first-stage module 1 and a second-stage module 2. The first-stage module 1 is used to access a pluggable POE power supply 6 and a pluggable non-POE power supply 7 and output. The second-stage module 2 is used to access a non-pluggable POE power supply 3, a non-pluggable non-POE power supply 4, and the output power of the first-stage module 1, and convert the power supply connected to the second-stage module 2 into a power supply suitable for the powered device and output. The first-stage module 1 is electrically connected to the second-stage module 2.

[0035] In this embodiment, the pluggable POE power supply 6 and the pluggable non-POE power supply 7 refer to power modules that can be easily installed or replaced by the user, such as modular power supplies or hot-swappable power supplies. These power modules are usually designed to be movably pluggable, that is, they can be safely inserted or unplugged when the switch is running, and the user can easily install or replace the pluggable power modules. For example, they are connected to the switch through the combination of a socket and a plug, specifically including pluggable POE batteries and pluggable non-POE batteries. The advantage of pluggable power supplies is that they can provide higher power redundancy and flexibility, allowing users to expand or replace power modules as needed. The position of the power adapter board 111 in the casing can be freely adjusted and fixed. By adjusting the position of the power adapter board 111 in the casing, pluggable power supplies of different lengths can be adapted to one set of casings.

[0036] Non-pluggable POE power supply 3 and non-pluggable non-POE power supply 4 usually refer to power modules fixedly installed inside the switch, such as built-in power modules, or AC or DC power supplies fixedly connected to the outside world. Usually, the connection between the non-pluggable power supply and the switch is fixed, and the user cannot freely remove it. The advantage of non-pluggable power supply is that it has a long battery life and does not need to be repeatedly removed and charged.

[0037] The connection between the pluggable power supply and the first-level module 1 is achieved through the cooperation of the plug and the slot or the cooperation of the connector and the interface. The pluggable POE power supply 6 and the pluggable non-POE power supply 7 have different pins. Therefore, the traditional practice is to design a corresponding circuit on the switching motherboard to connect the pluggable POE power supply 6 or the pluggable non-POE power supply 7. Therefore, the traditional switch can only meet a single power supply. The technical solution of this embodiment integrates multiple sets of circuits in the first-level module 1 and makes the output power or signal of the first-level module unified, so that multiple power supplies can be connected. The second-level power supply module includes a switching motherboard, the second-level module 2 can receive the output of the first-level module 1, and the motherboard of the second-level module 2 is provided with a circuit that adapts to the non-pluggable power supply, so it can also connect to the non-pluggable POE power supply 3 and the non-pluggable non-POE power supply 4.

[0038] The technical solution of the utility model is to set a first-level module 1 that can be connected to a pluggable POE power supply 6 and a pluggable non-POE power supply 7, and a second-level module 2 that can be connected to a non-pluggable POE power supply 3 and a non-pluggable non-POE power supply 4, and the first-level module 1 is electrically connected to the second-level module 2, and the second-level module 2 receives all the power supply and communication outputs of the first-level module 1, thereby achieving compatibility with the pluggable POE power supply 6, the pluggable non-POE power supply 7, the non-pluggable POE power supply 3 and the non-pluggable non-POE power supply 4, and improving the compatibility of the switch with the power supply.

[0039] For further information, see Figure 1 to Figure 2, in an embodiment of the present utility model, the first - stage module 1 has a power transfer board 11. The power transfer board 11 is used to access a pluggable POE power supply 6 and a pluggable non - POE power supply 7 and output. The power transfer board 11 is provided with a pluggable POE power supply 6 input interface 111 and a pluggable non - POE power supply 7 input interface 112. The power transfer board 11 is further provided with a power supply output interface 113, a first communication power supply output interface 114, and a second communication power supply output interface 115.

[0040] In this embodiment, the pluggable POE power supply 6 is plugged into the pluggable POE power supply 6 input interface 111, and the pluggable non - POE power supply 7 is plugged into the pluggable non - POE power supply 7 input interface 112. The power supply line of the pluggable POE power supply 6 sequentially passes through the pluggable POE power supply 6 input interface 111, the power transfer board 11, and the power supply output interface 113 to provide power supply to the second - stage module 2; the power supply line of the pluggable POE power supply 6 sequentially passes through the pluggable POE power supply 6 input interface 111, the power transfer board 11, and the first communication power supply output interface 114 to provide communication power to the second - stage module 2. The power supply line of the pluggable non - POE power supply 7 sequentially passes through the pluggable non - POE power supply 7 input interface 112, the power transfer board 11, and the second communication power supply output interface 115 to provide communication power to the second - stage module 2. In this way, compatibility with the pluggable POE power supply 6 and the pluggable non - POE power supply 7 is achieved, and the compatibility of the switch with the power supply is improved.

[0041] Following standards such as IEEE 802.3af, IEEE 802.3at, or IEEE 802.3bt, the POE power supply is usually a standard voltage of 48V. When there is a large power supply demand, the design of the POE power supply voltage of the switch does not follow the relevant standards. In this embodiment, the POE power supply voltage is 54V. The non - POE power supply usually uses standard power supply voltages, such as 12V, 24V, 48V, etc., and these voltages may be higher. Therefore, more strict safety measures for power lines and sockets are required. The non - POE power supply voltage in this embodiment is 12V. In this embodiment, multiple sets of circuits are integrated in the power transfer board 11, and the output power or signal of the power transfer board 11 is unified and then output to the second - stage module 2, so as to realize the access of multiple power supplies.

[0042] Furthermore, please refer to Figure 1 to Figure 4, in an embodiment of the present utility model, the second - stage module 2 includes a PSE power - supply board 21 and a switching - service main board 22. The PSE power - supply board 21 is provided with a power - supply input interface 211, and the switching - service main board 22 is provided with a first communication - power input interface 221 and a second communication - power input interface 222. The switch power - supply device further includes a first power - supply cable 31, a second power - supply cable 41, a first connection cable 1131, a second connection cable 1141, and a third connection cable 1151. The first connection cable 1131 connects the power - supply output interface 113 to the power - supply input interface 211, the second connection cable 1141 connects the first communication - power output interface 114 to the first communication - power input interface 221, and the third connection cable 1151 connects the second communication - power output interface 115 to the second communication - power input interface 222. The first power - supply cable 31 is connected to the power - supply input interface 211 or the first power - supply cable 31 is connected to the power - supply input interface 211, for connecting the non - pluggable POE power supply 3 to the switching - service main board 22. The second power - supply cable 41 is connected to the second communication - power input interface 222, for connecting the non - pluggable non - POE power supply 4 to the switching - service main board 22. The PSE power - supply board 21 is used to convert the power input to the PSE power - supply board 21 into a power supply suitable for the powered - device and output it. The switching - service main board 22 is used to convert the power input to the switching - service main board 22 into a communication power suitable for the powered - device and output it.

[0043] In this embodiment, the non - pluggable power supply includes a power supply that supplies power by welding one end of a cable inside the switch and connecting the other end to an alternating current or direct current externally, or some built - in power modules or dedicated power modules, etc. These power supplies cannot be unplugged by the user. The first power - supply cable 31 of this embodiment can be plugged into the power - supply input interface 211 or the first communication - power input interface 221 to supply power from the non - pluggable POE power supply 3 to the PSE power - supply board 21 or to the switching - service main board 22. When the downstream powered - device does not support POE, the first power - supply cable can be plugged only into the first communication - power input interface 221 to achieve only communication power supply. The second power - supply cable 41 of this embodiment is plugged into the second communication - power input interface 222 to supply power from the non - pluggable non - POE power supply 4 to the switching - service main board 22. In this way, compatibility with the non - pluggable POE power supply 3 and the non - pluggable non - POE power supply 4 is achieved.

[0044] The PSE power supply board 21 is used to convert the input current into a power supply current suitable for the powered device and output it. According to the input power supply type and the power demand of the powered device, it converts the current into a direct current of 48V or higher voltage that conforms to the POE standard through an internal circuit to supply the powered device for use. The PSE power supply board 21 also has power detection and protection functions, which can automatically detect the power demand of the powered device, provide an appropriate power supply current for it, and at the same time prevent abnormal conditions such as overload and short circuit, protecting the safe operation of the powered device and the switch.

[0045] The switching service main board 22 is used to convert the input current into a communication current suitable for the powered device and output it. It contains multiple network interface cards (NICs) for receiving and sending data packets and forwards the data packets through an internal switching engine. The switching service main board 22 also contains advanced functions such as a MAC address table, QoS, and VLAN, which can realize the management and control of network traffic and improve the performance and reliability of the network. In some scenarios, the power transfer board 11 can be combined with the switching service main board 22, that is, the power transfer board 11 and the switching service main board 22 are placed on the same single board to shorten the circuit path and reduce current loss.

[0046] In this embodiment, by decoupling the PSE power supply board 21 from the switching service main board 22, the POE power supply supplies power to the PSE power supply board 21 through the power transfer board 11 and the first connection cable 1131. Then, the PSE power supply board 21 supplies power to the powered device, and the POE power supply loop does not pass through the switching service main board 22, reducing the path loss of the current and reducing the complexity of the switching service main board 22 and the number of PCB layers of the switching service main board 22.

[0047] Furthermore, please refer to Figure 1 to Figure 3 , in an embodiment of the present utility model, in an implementation manner, the switch power supply device further has a power control signal cable. The power transfer board 11 is further provided with a first power control signal interface 116, and the switching service main board 22 is further provided with a second power control signal interface 227. The power control signal cable connects the first power control signal interface 116 and the second power control signal interface 227.

[0048] In this embodiment, the switching service main board 22 enables compatible access of 54V or 12V power supply cables for pluggable and non-pluggable power modules, converts the input power supply into the power required by the switching chip and service-related circuits on the board, and supplies power to the switching service chip 225 and the circuits related to the switching service. At the same time, a control signal is output to the power module to realize the access, monitoring and control of the power module, so as to improve the management efficiency and security of the power supply. Moreover, the power supply cable and the control signal cable are separated in design. On the one hand, it ensures high-power current passing through the power supply cable. On the other hand, a high-density control cable is used as the control signal cable, reducing the volume of the control signal cable and the production cost.

[0049] Further, please refer to Figure 3 , in an embodiment of the present utility model, the switching service main board 22 is further provided with a first-stage DC-DC conversion module 223 and a second-stage DC-DC conversion module 224. The first-stage DC-DC conversion module 223 is used to step down the power supply input to the first-stage DC-DC conversion module 223 and output it. The second-stage DC-DC conversion module 224 is used to step down the power supply input to the second-stage DC-DC conversion module 224 and output it. The first communication power input interface 221, the first-stage DC-DC conversion module 223, the first-stage DC-DC conversion module 223 and the second-stage DC-DC conversion module 224 are connected in sequence, and the second communication power input interface 222 is connected to the input end of the second-stage DC-DC conversion module 224.

[0050] In this embodiment, the pluggable POE power supply 6 is plugged into the POE power supply socket, and the pluggable non-POE power supply 7 is plugged into the non-POE power supply socket. The supply voltage of the POE power supply is 54V, and the supply voltage of the non-POE power supply is 12V. Therefore, the voltage of the second connection cable 1141 is 54V, and the voltage of the third connection cable 1151 is 12V. The second connection cable 1141 is connected to the first input interface and then connected to the first-stage DC-DC conversion module 223. After being stepped down to 12V by the first-stage DC-DC conversion module 223, it is normalized with the power supply of the non-POE power supply in the third connection cable 1151 and then connected to the second-stage DC-DC conversion module 224. After being stepped down to 3.3V by the second-stage DC-DC conversion module 224, it supplies power to the switching service chip 225 or the switching service circuit 226.

[0051] Further, please refer to Figure 3 , in an embodiment of the present utility model, the switching service main board 22 is further provided with a switching service chip 225 and a switching service circuit 226. The second-stage DC-DC conversion module 224 is connected to the switching service chip 225, and the second-stage DC-DC conversion module 224 is also connected to the switching service circuit 226.

[0052] In this embodiment, the switching service chip 225 is responsible for receiving, processing, and forwarding data packets, etc. The switching service chip 225 is responsible for receiving data packets entering from a network interface card (NIC) or an external interface. After receiving the data packets, the switching service chip 225 processes them according to the content of the data packets, such as parsing the MAC address, looking up the MAC address table, etc. The switching service chip 225 determines the forwarding path of the data packets according to the MAC address table or the routing policy, and forwards the data packets to the correct output port. In addition, the switching service chip 225 is also responsible for controlling network traffic to ensure that data packets are forwarded according to a certain priority, so as to improve the performance and reliability of the network.

[0053] Specifically, please refer to Figure 3 , in an embodiment of the present utility model, the first-stage DC-DC conversion module 223 is an isolated DC-DC converter, and / or the second-stage DC-DC conversion module 224 is a non-isolated DC-DC converter.

[0054] Since the first-stage DC-DC conversion module 223 is the first module connected to the switching service main board 22 with a 54V power supply, the 54V power supply voltage is relatively high compared to the 12V and 3.3V voltages in the circuits of the switching service main board 22. In order to prevent damage to other modules and components in the switching service main board 22 caused by power supply voltage fluctuations or other factors, the first-stage DC-DC conversion module 223 is set as an isolated DC-DC converter to provide electrical isolation and prevent direct electrical connection between the input and output, thereby improving the safety and reliability of the system. The second-stage DC-DC conversion module 224 is set as a non-isolated DC-DC converter. The non-isolated DC-DC converter is more lightweight, smaller in size, and relatively lower in cost.

[0055] Further, please refer to Figure 1 , in an embodiment of the present utility model, the switch power supply device further includes a fan circuit board 5, and the fan circuit board 5 is electrically connected to the third connection cable 1151. In this embodiment, the non-POE power supply directly supplies power to the fan circuit board 5 through the power supply adapter board 11 and the third power cable, and the power supply loop does not pass through the switching service main board 22, further reducing the current path loss and the complexity of the switching service main board 22, and reducing the number of PCB layers of the switching service main board 22.

[0056] Please refer to Figure 5 , in an embodiment of the present utility model, the power supply adapter board 11 includes a first power supply adapter board 117 and a second power supply adapter board 118. The first power supply adapter board 117 is provided with a pluggable POE power supply 6 interface, a power supply output interface 113, and a first communication power output interface 114. The second power supply adapter board 118 is provided with a pluggable non-POE power supply 7 interface and a second communication power output interface 115.

[0057] In this embodiment, a circuit suitable for pluggable POE power supply 6 is provided on the first power adapter board 117, and a circuit suitable for pluggable non-POE power supply 7 is provided on the second power adapter board 118. The first power adapter board 117 and the second power adapter board 118 can be respectively arranged at different positions in the switch according to the shape of the power supply and the shape of the switch housing, thus enhancing the flexibility of the installation of the power adapter board 11 and the adaptability to the shape of the power supply.

[0058] The present utility model also proposes a switch, and the switch includes the switch power supply device of any one of the above. The downstream of this switch is connected to PD (Powered Device), such as devices like IP phones, network cameras or wireless access points. This switch can support pluggable POE power supply 6, pluggable non-POE power supply 7, non-pluggable POE power supply 3, and non-pluggable non-POE power supply 4, and convert the accessed power into the electric energy required for the operation of the switch and the powered device.

[0059] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A switch power supply device, characterized in that, The switch power supply device includes: A first - stage module (1), which is used to access pluggable POE power supplies and pluggable non - POE power supplies and output; A second - stage module (2), which is used to access non - pluggable POE power supplies, non - pluggable non - POE power supplies and the output power of the first - stage module (1), and convert the power supplies accessed by the second - stage module (2) into power supplies suitable for power - receiving devices and output; The first - stage module (1) is electrically connected to the second - stage module (2).

2. The switch power supply device according to claim 1, characterized in that, The first - stage module (1) includes a power transfer board (11), which is used to access pluggable POE power supplies and pluggable non - POE power supplies and output; The power transfer board (11) is provided with a pluggable POE power input interface (111) and a pluggable non - POE power input interface (112), and the power transfer board (11) is also provided with a power supply output interface (113), a first communication power output interface (114) and a second communication power output interface (115).

3. The switch power supply device according to claim 2, characterized in that The second - stage module (2) includes: a PSE power supply board (21) and a switching service main board (22). The PSE power supply board (21) is provided with a power supply input interface (211), and the switching service main board (22) is provided with a first communication power input interface (221) and a second communication power input interface (222); The switch power supply device also includes a first power supply cable (31), a second power supply cable (41), a first connection cable (1131), a second connection cable (1141) and a third connection cable (1151); The first connection cable (1131) connects the power supply output interface (113) and the power supply input interface (211), the second connection cable (1141) connects the first communication power output interface (114) and the first communication power input interface (221), and the third connection cable (1151) connects the second communication power output interface (115) and the second communication power input interface (222); The first power supply cable (31) is connected to the power supply input interface (211) or the first power supply cable (31) is connected to the power supply input interface (211), which is used to connect the non - pluggable POE power supply to the switching service main board (22), and the second power supply cable (41) is connected to the second communication power input interface (222), which is used to connect the non - pluggable non - POE power supply to the switching service main board (22); The PSE power supply board (21) is used to convert the power input to the PSE power supply board (21) into a power supply suitable for power - receiving devices and output; The switching service main board (22) is used to convert the power input to the switching service main board (22) into a communication power supply suitable for power - receiving devices and output.

4. The switch power supply device according to claim 3, characterized in that, The switch power supply device further has a first power control signal cable (1161), the power transfer board (11) is further provided with a first power control signal interface (116), the switching service main board (22) is further provided with a second power control signal interface (227), and the first power control signal cable (1161) connects the first power control signal interface (116) and the second power control signal interface (227).

5. The switch power supply device according to claim 3, characterized in that, The switching service main board (22) is further provided with a first-stage DC-DC conversion module (223) and a second-stage DC-DC conversion module (224). The first-stage DC-DC conversion module (223) is used for stepping down the power input to the first-stage DC-DC conversion module (223) and outputting it. The second-stage DC-DC conversion module (224) is used for stepping down the power input to the second-stage DC-DC conversion module (224) and outputting it; The first communication power input interface (221), the first-stage DC-DC conversion module (223), the first-stage DC-DC conversion module (223) and the second-stage DC-DC conversion module (224) are connected in sequence, and the second communication power input interface (222) is connected to the second-stage DC-DC conversion module (224) terminal.

6. The switch power supply device according to claim 5, characterized in that The switching service main board (22) is further provided with a switching service chip (225) and a switching service circuit (226). The second-stage DC-DC conversion module (224) is connected to the switching service chip (225), and the second-stage DC-DC conversion module (224) is also connected to the switching service circuit (226).

7. The switch power supply device according to claim 6, characterized in that, The first-stage DC-DC conversion module (223) is an isolated DC-DC converter, and / or the second-stage DC-DC conversion module (224) is a non-isolated DC-DC converter.

8. The switch power supply device according to claim 3, wherein, The switch power supply device further includes a fan circuit board (5), and the fan circuit board (5) is electrically connected to the third connection cable (1151).

9. The switch power supply device according to claim 2, characterized in that, The power transfer board (11) includes a first power transfer board (117) and a second power transfer board (118). The first power transfer board (117) is provided with the pluggable POE power interface, the power supply output interface (113) and the first communication power output interface (114). The second power transfer board (118) is provided with the pluggable non-POE power input interface (112), a third power control signal interface (119) and the second communication power output interface (115).

10. A switch, characterized in that, The switch includes the switch power supply device according to any one of claims 1 to 9.

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