Power supply system and network device

Abstract

A power supply system and a network device, wherein a second detection voltage (V2) of a first connector (1) is collected by means of a first detection voltage (V1) provided by a voltage source (Vcc), so that identification of a type of a power supply cord (L1) is implemented on the basis of the second detection voltage (V2), and in addition, the reliability of the power supply cord (L1) is ensured without increasing the operation and maintenance costs of the network device. The power supply system (20) comprises a power supply module (PM). The power supply module (PM) comprises the voltage source (Vcc), a sampling circuit (AD) and the first connector (1), the first connector (1) being used to connect to the power supply cord (L1), and the power supply cord (L1) being connected to a power supply (PS1). The voltage source (Vcc) is used to provide the first detection voltage (V1) to the first connector (1). The sampling circuit (AD) is used to collect the second detection voltage (V2) from the first connector (1), and identify the type of the power supply cord (L1) on the basis of the second detection voltage (V2).

Description

Power systems and network equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 30, 2023, with application number 202311647051.9 and application name “Power System and Network Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of communication networks, and more particularly, to a power supply system and network equipment. Background Art

[0003] With the rapid development of communication network technology, network equipment has been widely used. Network equipment can include power supply systems and terminal devices. The power supply system can include a power module, which can be connected to the power supply via a power cord. The power module can also be connected to the terminal device via a cable. Network equipment has a long lifespan. When upgrading the power module during the lifecycle of the network equipment, the power cord must also be upgraded. To ensure compatibility of the power cord socket and avoid incorrect insertion of the power cord, the power supply system needs to be able to identify the power cord type.

[0004] Related technologies often install electronic chips and active devices in power cords. The electronic chips can control the active devices to send identification information indicating the power cord type (such as 3kW power cord, 4kW power cord, 6kW power cord, etc.) to the terminal device, thereby identifying the power cord type. However, the installation of electronic chips and active devices not only increases the cost of the power cord, but also greatly reduces the reliability of the power cord and increases the operation and maintenance costs of network equipment, as network equipment requires long-term reliable operation and active devices are prone to damage.

[0005] Therefore, there is an urgent need for a power supply system that can identify the type of power cord. Summary of the Invention

[0006] The present application provides a power supply system and a network device, which collects a second detection voltage of a first connector through a first detection voltage provided by a voltage source, thereby identifying the type of power cord based on the second detection voltage, and ensuring the reliability of the power cord without increasing the operation and maintenance costs of the network device.

[0007] In a first aspect, the present application provides a power supply system that may include a power supply module. The power supply module may include a voltage source, a sampling circuit, and a first connector, wherein the first connector may be used to connect to a power line, and the power line may be connected to a power supply.

[0008] The voltage source may be configured to provide a first detection voltage to the first connector.

[0009] The sampling circuit can be used to collect a second detection voltage from the first connector and identify the type of the power cord based on the second detection voltage. The power cord types may include Class A power cords, Class B power cords, and Class C power cords. The Class A power cord may be a 4kW power cord, the Class B power cord may be a 6kW power cord, the Class C power cord may be a 3kW power cord, and the like, although this application does not limit this.

[0010] The power supply system provided in this application can detect a second detection voltage from a first connector using a first detection voltage provided by a voltage source, thereby identifying the type of power cord based on the second detection voltage. As can be seen, compared to related technologies that incorporate electronic chips and active components into power cords, the power supply system provided in this application not only identifies the type of power cord but also ensures its reliability, without increasing the operation and maintenance costs of network equipment.

[0011] Furthermore, the first connector may include a first signal pin and a second signal pin. Alternatively, the first connector may include a first signal pin, a second signal pin and a third signal pin.

[0012] The power cord may include a second connector, and the second connector may be used to connect with the first connector.

[0013] The second connector can be used to short-circuit the first signal pin and the second signal pin. Alternatively, the second connector can be used to short-circuit the third signal pin and the second signal pin.

[0014] The power supply system provided in the present application can have a single power input scenario and a multiple power input scenario (such as a dual power input scenario). In the single power input scenario, the power supply system is connected to a power cord through a first connector to identify the type of the single power cord. In the multiple power input scenario, the power supply system is connected to multiple power cords (such as two power cords) through a first connector to identify the types of the multiple power cords. . That is to say, the power supply system provided in the present application can identify the type of a single power cord through the first connector, and can also identify the types of multiple power cords through the first connector.

[0015] In a possible implementation, when the power supply system is used to identify the type of a single power line, the power supply module may further include a first voltage dividing resistor.

[0016] Optionally, the first end of the first voltage-dividing resistor is connected to a voltage source. The second end of the first voltage-dividing resistor can be connected to a sampling circuit. The second end of the first voltage-dividing resistor can also be connected to a second connector via a first signal pin of the first connector. The second signal pin of the first connector can be connected to the second connector and to a ground terminal. It can be seen that the power supply system provided in the present application can identify the types of two types of power lines, such as a 3kW power line and a 4kW power line, through a voltage source, a first voltage-dividing resistor, and a sampling circuit.

[0017] In another possible implementation, when the power supply system is used to identify the types of multiple power lines, the power supply module may include multiple first connectors and multiple sampling circuits. The multiple power lines may include multiple second connectors. The power supply module may also include a first voltage divider resistor and a second voltage divider resistor.

[0018] Wherein, the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor can be connected to a voltage source. The second end of the first voltage-dividing resistor can be connected to a first sampling circuit among a plurality of sampling circuits, and the second end of the first voltage-dividing resistor can also be connected to one of the second connectors through a first signal pin of one of the first connectors. The second end of the second voltage-dividing resistor can be connected to a second sampling circuit among a plurality of sampling circuits, and the second end of the second voltage-dividing resistor can also be connected to another second connector through a first signal pin of another first connector. The second signal pin of one of the first connectors can be connected to one of the second connectors accordingly, the second signal pin of another first connector can be connected to another second connector accordingly, and the second signal pin of each first connector can be connected to the ground terminal. It can be seen that the power supply system provided in the present application can identify the types of two types of power lines, such as 3kW power lines and 4kW power lines, through a voltage source, a first voltage-dividing resistor, a second voltage-dividing resistor, a first sampling circuit and a second sampling circuit.

[0019] Furthermore, in the case where the power supply system is used to identify the type of a single power line, the power supply module may further include a third voltage dividing resistor.

[0020] Optionally, the first end of the third voltage-dividing resistor can be connected to the sampling circuit. The first end of the third voltage-dividing resistor can be connected to the second connector through the first signal pin of the first connector. The second end of the third voltage-dividing resistor can be connected to the second connector through the third signal pin of the first connector. Alternatively, the first end of the third voltage-dividing resistor can be connected to the second connector through the third signal pin of the first connector. The second end of the third voltage-dividing resistor can be connected to the second connector through the first signal pin of the first connector. It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage-dividing resistor, a third voltage-dividing resistor and a sampling circuit.

[0021] Furthermore, in the case where the power supply system is used to identify types of multiple power lines, the power supply module may further include a third voltage-dividing resistor and a fourth voltage-dividing resistor.

[0022] The first end of the third voltage-dividing resistor may be connected to the first sampling circuit. The first end of the third voltage-dividing resistor may also be connected to one of the second connectors via a first signal pin of one of the first connectors. The second end of the third voltage-dividing resistor may be connected to one of the second connectors via a third signal pin of one of the first connectors. Alternatively, the first end of the third voltage-dividing resistor may also be connected to one of the second connectors via a third signal pin of one of the first connectors. The second end of the third voltage-dividing resistor may be connected to one of the second connectors via a first signal pin of one of the first connectors.

[0023] The first end of the fourth voltage-dividing resistor may be connected to the second sampling circuit. The first end of the fourth voltage-dividing resistor may also be connected to another second connector via a first signal pin of another first connector. The second end of the fourth voltage-dividing resistor may be connected to another second connector via a third signal pin of another first connector. Alternatively, the first end of the fourth voltage-dividing resistor may also be connected to another second connector via a third signal pin of another first connector. The second end of the fourth voltage-dividing resistor may be connected to another second connector via a first signal pin of another first connector.

[0024] It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage divider resistor, a second voltage divider resistor, a third voltage divider resistor, a fourth voltage divider resistor, a first sampling circuit and a second sampling circuit.

[0025] In some possible implementations, when the power supply system is used to identify the type of a single power line, the power supply module may include multiple sampling circuits. The power supply module may also include a first voltage dividing resistor and a second voltage dividing resistor.

[0026] Wherein, the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor can be connected to a voltage source. The second end of the first voltage-dividing resistor is connected to the first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor is also connected to the second connector through the first signal pin of the first connector. The second end of the second voltage-dividing resistor is connected to the second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is also connected to the second connector through the third signal pin of the first connector. The second signal pin of the first connector is connected to the second connector and can be connected to the ground terminal. It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first sampling circuit, a second sampling circuit, a first voltage-dividing resistor and a second voltage-dividing resistor.

[0027] In some other possible implementations, when the power supply system is used to identify the types of multiple power lines, the power supply module includes multiple first connectors and multiple sampling circuits. The multiple power lines include multiple second connectors. The power supply module also includes a first voltage divider resistor, a second voltage divider resistor, a fifth voltage divider resistor, and a sixth voltage divider resistor.

[0028] The first end of each of the first voltage-dividing resistor, the second voltage-dividing resistor, the fifth voltage-dividing resistor, and the sixth voltage-dividing resistor is connected to a voltage source. The second end of the first voltage-dividing resistor is connected to a first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor is further connected to one of the second connectors via a first signal pin of one of the first connectors. The second end of the second voltage-dividing resistor is connected to a second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is further connected to one of the second connectors via a third signal pin of one of the first connectors. The second signal pin of one of the first connectors can be connected to one of the second connectors and can be connected to a ground terminal.

[0029] The second end of the fifth voltage-dividing resistor is connected to a third sampling circuit among the multiple sampling circuits, and the second end of the fifth voltage-dividing resistor is further connected to another second connector via a first signal pin of another first connector. The second end of the sixth voltage-dividing resistor is connected to a fourth sampling circuit among the multiple sampling circuits, and the second end of the sixth voltage-dividing resistor is further connected to another second connector via a third signal pin of another first connector. The second signal pin of another first connector can be connected to another second connector and can be connected to ground.

[0030] It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage divider resistor, a second voltage divider resistor, a third voltage divider resistor, a fourth voltage divider resistor, a first sampling circuit, a second sampling circuit, a third sampling circuit and a fourth sampling circuit.

[0031] Furthermore, the power supply system may include not only the power supply module but also a power entry module (PEM). The power entry module includes a third connector and a fourth connector.

[0032] The third connector may be used to connect to the first connector, and the fourth connector may be used to connect to the second connector.

[0033] In some possible implementations, when the power supply system is used to identify the type of a single power line, the input module may include a third connector and a fourth connector. The power supply module further includes a first voltage divider resistor.

[0034] Optionally, the first end of the first voltage-dividing resistor is connected to a voltage source. The second end of the first voltage-dividing resistor is connected to a sampling circuit. The second end of the first voltage-dividing resistor can also be connected to the first signal pin of the first connector. The first signal pin of the first connector can be connected to the second connector through the first signal pin of the third connector and the first signal pin of the fourth connector. The second signal pin of the first connector can be connected to the second connector through the second signal pin of the third connector and the second signal pin of the fourth connector, and the second signal pin of the first connector can be connected to the ground terminal. It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage-dividing resistor, a third connector, a fourth connector and a sampling circuit.

[0035] In other possible implementations, when the power supply system is used to identify the types of multiple power lines, the input module includes a third connector and multiple fourth connectors, the power supply module includes multiple sampling circuits, the multiple power lines include multiple second connectors, and the power supply module also includes a first voltage divider resistor and a second voltage divider resistor.

[0036] The first end of each of the first and second voltage-dividing resistors can be connected to a voltage source. The second end of the first voltage-dividing resistor can be connected to a first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor can also be connected to the first signal pin of the first connector. The second end of the second voltage-dividing resistor can be connected to a second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor can also be connected to the third signal pin of the first connector. The first signal pin of the first connector can be connected to one of the second connectors via the first signal pin of the third connector and the first signal pin of one of the fourth connectors. The third signal pin of the first connector can be connected to another second connector via the third pin of the third connector and the first signal pin of another fourth connector. The second signal pin of the first connector can be connected to the second signal pin of the third connector and can also be connected to ground. The second signal pin of the third connector can be connected to one of the second connectors via the second signal pin of one of the fourth connectors, and the second signal pin of the third connector can also be connected to another second connector via the second signal pin of another fourth connector.

[0037] It can be seen that the power supply system provided in the present application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage divider resistor, a second voltage divider resistor, a third connector and a fourth connector, a first sampling circuit and a second sampling circuit.

[0038] In some possible implementations, when the power supply system is used to identify the type of a single power line, the input module may include a third connector and a fourth connector. The power supply module may also include a first voltage divider resistor. The input module may also include a third voltage divider resistor.

[0039] Optionally, the first voltage-dividing resistor can be connected to a voltage source. The second end of the first voltage-dividing resistor can be connected to the sampling circuit, and the second end of the first voltage-dividing resistor can also be connected to the first signal pin of the third connector through the first signal pin of the first connector. The second signal pin of the first connector can be connected to the second signal pin of the third connector and can be connected to the ground terminal. The third voltage-dividing resistor can be connected between the first signal pin of the third connector and the third signal pin of the fourth connector. Alternatively, the third voltage-dividing resistor can be connected between the first signal pin of the third connector and the first signal pin of the fourth connector. The second signal pin of the third connector can be connected to the second signal pin of the fourth connector. The first signal pin, the second signal pin and the third signal pin of the fourth connector can be connected to the second connector respectively.

[0040] It can be seen that the power supply system provided in this application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage divider resistor, a third connector, a fourth connector and a sampling circuit.

[0041] In other possible implementations, when the power supply system is used to identify the types of multiple power lines, the input module may include a third connector and multiple fourth connectors, the power supply module may include multiple sampling circuits, and the multiple power lines may include multiple second connectors, with the multiple second connectors corresponding one-to-one with the multiple fourth connectors. The power supply module may also include a first voltage divider resistor and a second voltage divider resistor. The input module may also include a third voltage divider resistor and a fourth voltage divider resistor.

[0042] The first end of each of the first and second voltage-dividing resistors can be connected to a voltage source. The second end of the first voltage-dividing resistor can be connected to a first sampling circuit among the multiple sampling circuits. The second end of the first voltage-dividing resistor can also be connected to the first signal pin of the third connector via the first signal pin of the first connector. The second end of the second voltage-dividing resistor can be connected to the second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor can also be connected to the third signal pin of the third connector via the third signal pin of the first connector. The second signal pin of the first connector can be connected to the second signal pin of the third connector and can be connected to ground. The third voltage-dividing resistor can be connected between the first signal pin of the third connector and the third signal pin of one of the fourth connectors. Alternatively, the third voltage-dividing resistor can be connected between the first signal pin of the third connector and the first signal pin of one of the fourth connectors. The fourth voltage-dividing resistor can be connected between the third signal pin of the third connector and the third signal pin of another fourth connector. Alternatively, the fourth voltage-dividing resistor can be connected between the third signal pin of the third connector and the first signal pin of another fourth connector. The second signal pin of the third connector is connected to the second signal pin of each of the fourth connectors. The first signal pin, the second signal pin and the third signal pin of one of the fourth connectors can be connected to one of the second connectors respectively, and the first signal pin, the second signal pin and the third signal pin of another fourth connector can be connected to another second connector.

[0043] It can be seen that the power supply system provided in this application can identify the types of three types of power lines, namely 3kW power lines, 4kW power lines and 6kW power lines, through a voltage source, a first voltage divider resistor, a third connector, a fourth connector and a sampling circuit.

[0044] In one example, the first connector may also include a first power pin. The friction distance of the first, second, or third signal pins may be less than the friction distance of the first power pin. The friction distance can be used to indicate the movement distance of the contact points of the first, second, or third signal pins. It is conceivable that during the insertion of the first connector into the second connector, the signal pin may be connected after the power pin. During the removal of the second connector from the first connector, the signal pin may be disconnected before the power pin. This allows the power system to detect the signal pin during the insertion and removal of the first and second connectors to determine whether to power on or off. When the second connector is inserted into the first connector, the power system is de-energized at the moment the power pins touch. When the second connector is removed from the first connector, the power system is also de-energized at the moment the power pins separate. This effectively prevents hot-plugging of the first and second connectors, and also effectively prevents arcing and erosion of the power pins of the first and second connectors at the moment of contact during hot-plugging.

[0045] Optionally, if the first power line and the second power line among the multiple power lines identified by the power supply system are of different types, the power supply system may be configured to output active power according to the rated power of the first power line. Alternatively, the power supply system may be configured to output active power according to the rated power of the second power line and issue an alarm.

[0046] The rated power of the first power cord may be smaller than the rated power of the second power cord. The warning prompt information is used to instruct to replace the second power cord.

[0047] In a second aspect, the present application provides a network device that may include a power cord and a power system provided by the first aspect and its possible implementations. The power system may be connected to the power cord, and the power cord may be connected to a power supply.

[0048] It should be understood that the second aspect of this application is consistent with the technical solution of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar, which will not be repeated. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] FIG1 is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0051] FIG2 is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0052] FIG3 is a schematic structural diagram of the connection between the power supply system 10 and the power line L1 in an embodiment of the present application;

[0053] FIG4 is a schematic structural diagram of the connection between the power supply system 10 and the power line L1 and the power line L2 in an embodiment of the present application;

[0054] FIG5 a is a schematic structural diagram of the first connector 1 in an embodiment of the present application;

[0055] FIG5 b is another schematic structural diagram of the first connector 1 in the embodiment of the present application;

[0056] FIG5 c is another schematic structural diagram of the first connector 1 in the embodiment of the present application;

[0057] FIG6 a is a schematic structural diagram of the second connector 2 in an embodiment of the present application;

[0058] FIG6 b is another schematic structural diagram of the second connector 2 in the embodiment of the present application;

[0059] FIG6 c is another schematic structural diagram of the second connector 2 in the embodiment of the present application;

[0060] FIG6 d is another schematic structural diagram of the second connector 2 in the embodiment of the present application;

[0061] FIG7 a is a schematic structural diagram of a friction distance c1 of a signal pin of the first connector 1 in an embodiment of the present application;

[0062] FIG7 b is a schematic structural diagram of the friction distance c2 of the power pin of the first connector 1 in an embodiment of the present application;

[0063] FIG8 a is a schematic diagram showing the connection sequence of the signal pins and the power pins of the first connector 1 and the second connector 2 in accordance with an embodiment of the present application;

[0064] FIG8 b is a schematic diagram showing a disconnection sequence of the signal pins and the power pins of the first connector 1 and the second connector 2 in accordance with an embodiment of the present application;

[0065] FIG9 a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0066] FIG9 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0067] FIG10 a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0068] FIG10 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0069] FIG11a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0070] FIG11 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0071] FIG12a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0072] FIG12 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0073] FIG13a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0074] FIG13 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0075] FIG14a is a schematic diagram showing the connection relationship between the power supply system 10 and the power line L1 according to an embodiment of the present application;

[0076] FIG14 b is a schematic diagram showing the connection relationship between the power supply system 10 and the power line L1 and the power line L2 according to an embodiment of the present application;

[0077] FIG15 a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0078] FIG15 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0079] FIG16 a is a schematic structural diagram of a power supply system 10 according to an embodiment of the present application;

[0080] FIG16 b is another schematic structural diagram of the power supply system 10 in an embodiment of the present application;

[0081] FIG17a is a schematic structural diagram of a network device 100 according to an embodiment of the present application;

[0082] FIG17 b is another schematic structural diagram of the network device 100 in an embodiment of the present application. DETAILED DESCRIPTION

[0083] The technical solution in this application will be described below with reference to the accompanying drawings.

[0084] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0085] The terms "first," "second," and the like in the description, embodiments, claims, and drawings of this application are used solely for descriptive purposes and are not to be construed as indicating or implying relative importance or order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions, such as, for example, inclusion of a series of steps or units. A method, system, product, or apparatus is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0086] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0087] With the rapid development of communication network technology, network equipment has been widely used. Network equipment may include power supply systems and terminal devices. The power supply system may include a power module, which can be connected to a power supply via a power cord. The power module can also be connected to the terminal device via a cable. Network equipment has a long lifespan. When upgrading the power module during the lifespan of the network equipment, the power cord needs to be upgraded simultaneously. To ensure compatibility of the power cord socket and avoid incorrect power cord insertion, the power supply system needs to be able to identify the power cord type. Related technologies often include electronic chips and active devices in the power cord. The electronic chip can control the active device to send identification information indicating the power cord type (such as 3kW power cord, 4kW power cord, 6kW power cord, etc.) to the terminal device, thereby enabling power cord type identification. However, the inclusion of electronic chips and active devices not only increases the cost of the power cord, but also, since network equipment requires long-term reliable operation and active devices are prone to damage, this significantly reduces the reliability of the power cord and increases the operation and maintenance costs of the network equipment.

[0088] In order to overcome the above shortcomings, the present invention provides a power supply system, as shown in Figures 1 and 2. The power supply system 10 may include a power module (PM). The PM may include a voltage source V CC , sampling circuit AD and first connector 1.

[0089] The first connector 1 can be connected to a power line L1, which can be connected to a power supply PS1, as shown in FIG1 . In FIG1 , the power supply system 10 can have a single power input scenario, and the power supply system 10 is configured to identify the type of a single power line (i.e., power line L1). The single power input scenario of the power supply system 10 can also be illustrated in FIG3 .

[0090] Of course, the first connector 1 can be used to connect to the power line L1 and the power line L2, the power line L1 can be connected to the power supply PS1, and the power line L2 can be connected to the power supply PS2, as shown in Figure 2. In Figure 2, the power supply system 10 can have a dual power input scenario (that is, a multi-power input scenario). The power supply system 10 is used to identify the types of the two power lines (i.e., the power line L1 and the power line L2). The dual power input scenario of the power supply system 10 can be referred to in Figure 4.

[0091] Optionally, the voltage source V CC It can be used to provide a first detection voltage V1 for the first connector 1 .

[0092] The sampling circuit can be used to collect a second detection voltage V2 from the first connector 1 and identify the type of the power line L1 (or the power line L1 and the power line L2) based on the second detection voltage V2. The type of the power line L1 or the power line L2 can include a Class A power line, a Class B power line, and a Class C power line. The Class A power line can be a 4kW power line, the Class B power line can be a 6kW power line, the Class C power line can be a 3kW power line, and so on, which are not limited in the embodiments of the present application.

[0093] The power supply system 10 provided in the embodiment of the present application can be operated by a voltage source V CC The first detection voltage V1 provided is used to collect the second detection voltage V2 of the first connector 1, thereby enabling identification of the power cord type based on the second detection voltage V2. It can be seen that, compared to related technologies that incorporate electronic chips and active components into the power cord, the power supply system 10 provided in the embodiment of the present application not only enables identification of the power cord type, but also ensures the reliability of the power cord, without increasing the operation and maintenance costs of the network equipment.

[0094] Further, as shown in Figure 5a, the first connector 1 may include a first signal pin a and a second signal pin cp. Alternatively, as shown in Figure 5b, the first connector 1 may include a first signal pin a, a third signal pin b, and a second signal pin cp.

[0095] Optionally, the first connector 1 may further include multiple first power pins (including a positive power pin S1, a negative power pin S2, and a ground power pin S3), as shown in FIG5c. The lengths of the positive power pin S1, the negative power pin S2, and the ground power pin S3 may all be equal. The friction distances of the positive power pin S1, the negative power pin S2, and the ground power pin S3 may all be equal. The friction distances may be used to indicate the movement distance of the first power pin contact points.

[0096] In some embodiments, for a single power input scenario of the power supply system 10 , referring to FIG. 3 , the power line L1 may include a second connector 2 , and the second connector 2 may be used to connect to the first connector 1 .

[0097] The second connector 2 can be used to short-circuit the first signal pin a and the second signal pin cp of the first connector 1 .

[0098] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the type of the power line L1 through the first connector 1.

[0099] For the dual power input scenario of the power supply system 10, referring to FIG4 , the power line L1 may include a second connector 21, which may be used to connect to the first connector 11. Similarly, the power line L2 may include a second connector 22, which may be used to connect to the first connector 12.

[0100] The second connector 21 can be used to short-circuit the first signal pin a and the second signal pin cp of the first connector 11 , or to short-circuit the third signal pin b and the second signal pin cp of the first connector 11 .

[0101] Similarly, the second connector 22 can be used to short-circuit the first signal pin a and the second signal pin cp of the second connector 12 , or to short-circuit the third signal pin b and the second signal pin cp of the second connector 12 .

[0102] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of the power line L1 and the power line L2 through the first connector 11 and the first connector 12 .

[0103] The second connector 2 is taken as an example to introduce the second connector.

[0104] Optionally, the second connector 2 may include a shorting pin c, as shown in FIG6a . In addition to the shorting pin c, the second connector 2 may also include an open pin d, as shown in FIG6b . Alternatively, the second connector 2 may not be provided with the shorting pin c or the open pin d, as shown in FIG6c .

[0105] Similar to the first connector 1 , the second connector 2 may also include a plurality of second power pins (including a positive power pin S4 , a negative power pin S5 and a ground power pin S6 ), as shown in FIG. 6 a to FIG. 6 d .

[0106] In one example, for the second connector 2 shown in FIG6 a , the lengths of the shorting pin c and the plurality of second power pins may be equal, and the friction distances between the shorting pin c and the plurality of power pins may be equal.

[0107] In another example, for the second connector 2 shown in FIG6b , the lengths of the shorting pin c, the open pin d, and the plurality of second power pins may be equal, and the friction distances of the shorting pin c, the open pin d, and the plurality of second power pins may be equal.

[0108] In another example, for the second connector 2 shown in FIG6 c , the lengths of the multiple power pins may be equal, and the friction distances of the multiple power pins may be equal.

[0109] Optionally, as shown in Figure 7a, Lpin1 represents the length of the signal pin of the first connector 1 (including the first signal pin a, the second signal pin cp or the third signal pin b), Lpin2 represents the length of the short-circuit pin c of the second connector 2, and c1 represents the friction distance of the signal pin of the first connector 1.

[0110] As shown in Figure 7b, Lpin3 represents the length of the first power pin (including the positive power pin S1, the negative power pin S2, or the ground power pin S3), Lpin4 represents the length of the second power pin (including the positive power pin S4, the negative power pin S5, or the ground power pin S6), and c2 represents the friction distance of the first power pin.

[0111] Comparing FIG7a and FIG7b , it can be seen that c1<c2. In other words, the friction distance c1 of the signal pin of the first connector 1 may be smaller than the friction distance c2 of the first power pin.

[0112] Therefore, during the insertion of the first connector 1 into the second connector 2, the order in which the signal pins and power pins of the first connector 1 and the second connector 2 are connected is shown in Figure 8a. In Figure 8a, t represents time, t1 represents the moment when the first power pin and the second power pin are connected, and t2 represents the moment when the signal pins of the first connector 1 and the second connector 2 are connected. As can be seen from Figure 8a, the signal pins of the first connector 1 and the second connector 2 can be connected later than their power pins. This allows the power supply system 10 to determine whether it is powered on by detecting the signal pins during the insertion of the first connector 1 into the second connector 2.

[0113] During the process of removing the second connector 2 from the first connector 1, the order in which the signal pins and power pins of the first connector 1 and the second connector 2 are disconnected is shown in Figure 8b. In Figure 8b, t represents time, t3 represents the time when the signal pins of the first connector 1 and the second connector 2 are disconnected, and t4 represents the time when the first power pin and the second power pin are disconnected. As can be seen from Figure 8b, the signal pins of the first connector 1 and the second connector 2 can be disconnected before their power pins. This allows the power supply system 10 to determine whether to power off by detecting the signal pins during the process of removing the second connector 2 from the first connector 1.

[0114] It can be imagined that during the plugging and unplugging process of the first connector 1 and the second connector 2, the power supply system 10 is not powered at the moment the first power pin and the second power pin are in contact and separated, which can effectively avoid the hot plugging and unplugging of the first connector 1 and the second connector 2, and at the same time effectively avoid the first power pin and the second power pin being arced and burned at the moment of contact in the hot plugging scenario.

[0115] In some embodiments, for a single power input scenario, the PM may further include a first voltage dividing resistor R1 , as shown in FIG9 a .

[0116] Optionally, the first end of the first voltage-dividing resistor R1 is connected to the voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1. The second end of the first voltage-dividing resistor R1 can also be connected to the second connector 21 through the first signal pin a of the first connector 11. The second signal pin cp of the first connector 11 can be connected to the second connector 21 and can be connected to the ground terminal. For Class A power lines, the short-circuit pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of two types of power lines, such as Class A power lines (4kW power lines) and Class C power lines (3kW power lines), through the voltage source Vcc, the first voltage-dividing resistor R1 and the first sampling circuit AD1.

[0117] In other embodiments, for dual power input scenarios, the PM can include multiple first connectors (first connector 11 and second connector 12) and multiple sampling circuits (first sampling circuit AD1 and second sampling circuit AD2). Multiple power lines can include multiple second connectors (second connector 21 and second connector 22). The PM can also include first and second voltage divider resistors R1 and R2, as shown in Figure 9b.

[0118] The first end of the first voltage-dividing resistor R1 and the second voltage-dividing resistor R2 can each be connected to a voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1, and the second end of the first voltage-dividing resistor R1 can also be connected to the second connector 21 via the first signal pin a of the first connector 11. The second end of the second voltage-dividing resistor R2 can be connected to the second sampling circuit AD2, and the second end of the second voltage-dividing resistor R2 can also be connected to the second connector 22 via the first signal pin a of the first connector 12. The second signal pin cp of the first connector 11 can be connected to the second connector 21, and the second signal pin cp of the first connector 12 can be connected to the second connector 22. The second signal pin cp of each of the first connector 11 and the first connector 12 can both be connected to ground. For a Class A power cord, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can also short-circuit the first signal pin a and the second signal pin cp of the first connector 12. It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of two types of power lines, namely Class A power lines (4kW power lines) and Class C power lines (3kW power lines), through the voltage source Vcc, the first voltage divider resistor R1, the second voltage divider resistor R2, the first sampling circuit AD1 and the second sampling circuit AD2.

[0119] Furthermore, based on Figure 9a , the PM may further include a third voltage-dividing resistor R3, as shown in Figure 10a . A first end of the third voltage-dividing resistor R3 may be connected to the first sampling circuit AD1 . The first end of the third voltage-dividing resistor R3 may be connected to the second connector 21 via the first signal pin a of the first connector 11 . A second end of the third voltage-dividing resistor R3 may be connected to the second connector 21 via the third signal pin b of the first connector 11 . In other words, the third voltage-dividing resistor R3 may be connected between node F and the third signal pin b of the first connector 11 , as shown in Figure 10a .

[0120] Alternatively, the first end of the third voltage-dividing resistor R3 can be connected to the second connector 21 via the third signal pin b of the first connector 11. The second end of the third voltage-dividing resistor R3 can be connected to the second connector 21 via the first signal pin a of the first connector 11. In other words, the third voltage-dividing resistor R3 can also be connected between the node F and the third signal pin a of the first connector 11.

[0121] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of three types of power lines, namely Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through the voltage source Vcc, the first voltage divider resistor R1, the third voltage divider resistor R3 and the first sampling circuit AD1.

[0122] Based on Figure 9b, PM may further include a third voltage-dividing resistor R3 and a fourth voltage-dividing resistor R4, as shown in Figure 10b. The first end of the third voltage-dividing resistor R3 may be connected to the first sampling circuit AD1. The first end of the third voltage-dividing resistor R3 may also be connected to the second connector 21 via the first signal pin a of the first connector 11. The second end of the third voltage-dividing resistor R3 may be connected to the second connector 21 via the third signal pin b of the first connector 11. In other words, the third voltage-dividing resistor R3 may be connected between node F and the third signal pin b of the first connector 11, as shown in Figure 10b. Alternatively, the first end of the third voltage-dividing resistor R3 may also be connected to the second connector 21 via the third signal pin b of the first connector 11. The second end of the third voltage-dividing resistor R3 may be connected to the second connector 21 via the first signal pin a of the first connector 11. In other words, the third voltage-dividing resistor R3 may also be connected between node F and the first signal pin a of the first connector 11.

[0123] Among them, the first end of the fourth voltage-dividing resistor R4 can be connected to the second sampling circuit AD2. The first end of the fourth voltage-dividing resistor R4 can also be connected to the second connector 22 through the first signal pin a of the first connector 12. The second end of the fourth voltage-dividing resistor R4 can be connected to the second connector 22 through the third signal pin b of the first connector 12. That is, the third voltage-dividing resistor R4 can be connected between the node E and the third signal pin b of the first connector 12, refer to Figure 10b. Alternatively, the first end of the fourth voltage-dividing resistor R4 can also be connected to the second connector 22 through the third signal pin b of the first connector 12. The second end of the fourth voltage-dividing resistor R4 can be connected to the second connector 22 through the first signal pin a of the first connector 12. That is, the fourth voltage-dividing resistor R4 can also be connected between the node E and the first signal pin a of the first connector 12.

[0124] It can be seen that the power supply system provided in the embodiment of the present application can identify the types of three types of power lines, namely, Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through the voltage source Vcc, the first voltage divider resistor R1, the second voltage divider resistor R2, the third voltage divider resistor R3, the fourth voltage divider resistor R4, the first sampling circuit AD1 and the second sampling circuit AD2.

[0125] Furthermore, based on FIG10 a , the power supply system 10 may further include a power entry module (PEM), as shown in FIG11 a and FIG11 b .

[0126] Optionally, as shown in FIG11 a , the PEM includes a third connector 31 and a fourth connector 41. The third connector 31 may be used to connect to the first connector 11, and the fourth connector 41 may be used to connect to the second connector 21.

[0127] As shown in Figure 11b, the PEM includes a third connector 31, a third connector 32, a fourth connector 41, and a fourth connector 42. The third connector 31 can be used to connect to the first connector 11, and the fourth connector 41 can be used to connect to the second connector 21. Similarly, the third connector 32 can be used to connect to the first connector 12, and the fourth connector 42 can be used to connect to the second connector 22.

[0128] The power supply system 10 provided in Figures 11a and 11b of the embodiment of the present application can identify the types of three types of power lines, namely Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through PM and PEM.

[0129] In one possible implementation, for a single power supply input scenario, the PM may include multiple sampling circuits (a first sampling circuit AD1 and a second sampling circuit AD2). The PM may also include a first voltage divider resistor R1 and a second voltage divider resistor R2, as shown in FIG12a . The first end of the first voltage divider resistor R1 may be connected to the voltage source Vcc1. The second end of the first voltage divider resistor R1 is connected to the first sampling circuit AD1, and the second end of the first voltage divider resistor R1 is also connected to the second connector 21 via the first signal pin a of the first connector 11. The first end of the second voltage divider resistor R2 may be connected to the voltage source Vcc2. The second end of the second voltage divider resistor R2 is connected to the second sampling circuit AD2, and the second end of the second voltage divider resistor R2 is also connected to the second connector 21 via the third signal pin b of the first connector 11. The second signal pin cp of the first connector 11 is connected to the second connector 21 and to ground. For a Class A power cable, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. For a Class B power line, the shorting pin c of the second connector 21 can short-circuit the third signal pin b and the second signal pin cp of the first connector 11. It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of three types of power lines, namely, Class A power lines (4kW power lines), Class B power lines (6kW power lines), and Class C power lines (3kW power lines), by using the voltage source Vcc1, the voltage source Vcc2, the first sampling circuit AD1, the second sampling circuit AD2, the first voltage divider resistor R1, and the second voltage divider resistor R2.

[0130] In another possible implementation, for dual power input scenarios, the PM may include multiple first connectors (first connector 11 and first connector 12) and multiple sampling circuits (first sampling circuit AD1, second sampling circuit AD2, third sampling circuit AD3, and fourth sampling circuit AD4). The multiple power lines may include multiple second connectors (second connector 21 and second connector 22). The PM may also include a first voltage divider resistor R1, a second voltage divider resistor R2, a fifth voltage divider resistor R5, and a sixth voltage divider resistor R6, as shown in FIG12b .

[0131] The first end of each of the first and fifth voltage-dividing resistors R1 and R5 can be connected to a voltage source Vcc1, and the first end of each of the second and sixth voltage-dividing resistors R2 and F6 can be connected to a voltage source Vcc2. The second end of the first voltage-dividing resistor R1 is connected to the first sampling circuit AD1, and the second end of the first voltage-dividing resistor R1 is also connected to the second connector 21 via the first signal pin a of the first connector 11. The second end of the second voltage-dividing resistor R2 is connected to the second sampling circuit AD2, and the second end of the second voltage-dividing resistor R2 is also connected to the second connector 21 via the third signal pin b of the first connector 11. The second signal pin cp of the first connector 11 is connected to the second connector 21 and to ground.

[0132] The second end of the fifth voltage-dividing resistor R5 is connected to the third sampling circuit AD3. The second end of the fifth voltage-dividing resistor R5 is also connected to the second connector 22 via the first signal pin a of the first connector 12. The second end of the sixth voltage-dividing resistor R6 can be connected to the fourth sampling circuit AD4. The second end of the sixth voltage-dividing resistor R6 is also connected to the second connector 22 via the third signal pin b of the first connector 12. The second signal pin cp of the first connector 12 is connected to the second connector 22 and to ground. For a Class A power cord, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can short-circuit the first signal pin a and the second signal pin cp of the first connector 12. For a Class B power cord, the shorting pin c of the second connector 21 can short-circuit the third signal pin b and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can short-circuit the third signal pin b and the second signal pin cp of the first connector 12.

[0133] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of three types of power lines, namely, Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through the voltage source Vcc1, the voltage source Vcc2, the first voltage divider resistor R1, the second voltage divider resistor R2, the third voltage divider resistor R3, the fourth voltage divider resistor R4, the first sampling circuit AD1, the second sampling circuit AD2, the third sampling circuit AD3 and the fourth sampling circuit AD4.

[0134] Furthermore, based on FIG12a , the power supply system 10 may further include a power entry module (PEM), as shown in FIG13a and FIG13b .

[0135] Optionally, as shown in FIG13 a , the PEM includes a third connector 31 and a fourth connector 41. The third connector 31 may be used to connect to the first connector 11, and the fourth connector 41 may be used to connect to the second connector 21.

[0136] As shown in Figure 13b, the PEM includes a third connector 31, a third connector 32, a fourth connector 41, and a fourth connector 42. The third connector 31 can be used to connect to the first connector 11, and the fourth connector 41 can be used to connect to the second connector 21. Similarly, the third connector 32 can be used to connect to the first connector 12, and the fourth connector 42 can be used to connect to the second connector 22.

[0137] The power supply system 10 provided in Figures 13a and 13b of the embodiment of the present application can identify the types of three types of power lines, namely Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through PM and PEM.

[0138] The connection between the power supply system 10 shown in Figures 11a and 13a and the power line L1 can also be illustrated in Figure 14a. In Figure 14a, the PM is connected to the third connector 31 of the PEM via the first connector 11. The fourth connector 41 of the PEM can be connected to the second connector 21 of the power line L1. The power line L1 can be connected to the power supply PS1.

[0139] The connection relationship between the power supply system 10 shown in Figures 11b and 13b and the power lines L1 and L2 can also be illustrated in Figure 14b. In Figure 14b, the PM is connected to the third connector 31 of the PEM via the first connector 11, and the fourth connector 41 of the PEM can be connected to the second connector 21 of the power line L1. The power line L1 can be connected to the power supply PS1. At the same time, the PM is connected to the third connector 32 of the PEM (not shown in Figure 14b due to obstruction) via the first connector 12, and the fourth connector 42 of the PEM can be connected to the second connector 22 of the power line L2. The power line L2 can be connected to the power supply PS2.

[0140] In one example, for a single power input scenario, the PEM may include a third connector 31 and a fourth connector 41. The PM may further include a first voltage dividing resistor R1, as shown in FIG15a.

[0141] Optionally, the first end of the first voltage-dividing resistor R1 can be connected to the voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1. The second end of the first voltage-dividing resistor R1 can also be connected to the first signal pin a of the first connector 11. The first signal pin a of the first connector 11 can be connected to the second connector 21 through the first signal pin a of the third connector 31 and the first signal pin a of the fourth connector 41. The second signal pin cp of each of the first connector 11, the third connector 31, the fourth connector 41 and the second connector 21 can be connected to the ground terminal. The second signal pin cp of the first connector 11 can be connected to the second connector 21 through the second signal pin cp of the third connector 31 and the second signal pin cp of the fourth connector 41, and the second signal pin cp of the first connector 11 can be connected to the ground terminal. For a Class A power cord, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of two types of power lines, namely Class A power lines (4kW power lines) and Class C power lines (3kW power lines), through the voltage source Vcc, the first voltage divider resistor R1, the third connector 31, the fourth connector 41 and the sampling circuit.

[0142] In another example, for a dual power input scenario, the PEM may include a third connector 31 and multiple fourth connectors (i.e., fourth connector 41 and fourth connector 42), the PM may include multiple sampling circuits (i.e., first sampling circuit AD1 and second sampling circuit AD2), and the multiple power lines may include multiple second connectors (i.e., second connector 21 and second connector 22). The PM may also include a first voltage divider resistor R1 and a second voltage divider resistor R2, as shown in FIG15b .

[0143] The first end of each of the first and second voltage-dividing resistors R1 and R2 can be connected to a voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1, and the second end of the first voltage-dividing resistor R1 can also be connected to the first signal pin a of the first connector 11. The second end of the second voltage-dividing resistor R2 can be connected to the second sampling circuit AD2, and the second end of the second voltage-dividing resistor R2 can also be connected to the third signal pin b of the first connector 11. The first signal pin a of the first connector 11 can be connected to the second connector 21 via the first signal pin a of the third connector 31 and the first signal pin a of the fourth connector 41. The third signal pin b of the first connector 11 can be connected to the second connector 22 via the third pin b of the third connector 31 and the first signal pin a of the fourth connector 42. The second signal pin cp of the first connector 11 is connected to the second signal pin cp of the third connector 31 and to ground. The second signal pin cp of the third connector 31 is connected to the second connector 21 via the second signal pin cp of the fourth connector 42, and the second signal pin cp of the third connector 31 is also connected to the second connector 22 via the second signal pin cp of the fourth connector 42. For Class A power lines, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can short-circuit the first signal pin a and the second signal pin cp of the first connector 12. It can be seen that the power supply system provided in the embodiment of the present application can identify the types of two types of power lines, namely Class A power lines (4kW power lines) and Class C power lines (3kW power lines), through the voltage source Vcc, the first voltage divider resistor R1, the second voltage divider resistor R2, the third connector 31, the fourth connector 41, the fourth connector 42, the first sampling circuit AD1 and the second sampling circuit AD2.

[0144] In some embodiments, for a single power input scenario, the PEM may include a third connector 31 and a fourth connector 41. The PM may also include a first voltage divider resistor R1. The PEM may also include a third voltage divider resistor R3, as shown in FIG16a.

[0145] Optionally, the first voltage-dividing resistor R1 can be connected to a voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1. The second end of the first voltage-dividing resistor R1 can also be connected to the first signal pin a of the third connector 31 via the first signal pin a of the first connector 11. The second signal pin cp of the first connector 11 can be connected to the second signal pin cp of the third connector 31 and can be connected to ground. The third voltage-dividing resistor R3 can be connected between the first signal pin a of the third connector 31 and the third signal pin b of the fourth connector 41, as shown in Figure 16a. The second signal pin cp of the third connector 31 can be connected to the second signal pin cp of the fourth connector 41. The first signal pin a, second signal pin cp, and third signal pin b of the fourth connector 41 can be connected to the second connector 21, respectively. For a Class A power line, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. For a Class B power line, the shorting pin c of the second connector 21 can short-circuit the third signal pin b and the second signal pin cp of the first connector 11.

[0146] Of course, the third voltage-dividing resistor R3 may also be connected between the first signal pin a of the third connector 31 and the first signal pin a of the fourth connector 41 , which is not limited in this embodiment of the present application.

[0147] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of three types of power lines, namely, Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through the voltage source Vcc, the first voltage divider resistor R1, the third connector 31, the fourth connector 41 and the first sampling circuit AD1.

[0148] In other embodiments, for dual power input scenarios, the PEM may include a third connector 31 and multiple fourth connectors (i.e., fourth connectors 41 and 42), the PM may include multiple sampling circuits (i.e., first sampling circuit AD1 and second sampling circuit AD2), and the multiple power lines may include multiple second connectors (i.e., second connector 21 and second connector 22). The second connectors 21 and 22 correspond one-to-one with the fourth connectors 41 and 42. The PM may also include a first voltage divider resistor R1 and a second voltage divider resistor R2. The PEM may also include a third voltage divider resistor R3 and a fourth voltage divider resistor R4, as shown in FIG16b.

[0149] The first end of each of the first and second voltage-dividing resistors R1 and R2 can be connected to a voltage source Vcc. The second end of the first voltage-dividing resistor R1 can be connected to the first sampling circuit AD1. The second end of the first voltage-dividing resistor R1 can also be connected to the first signal pin a of the third connector 31 via the first signal pin a of the first connector 11. The second end of the second voltage-dividing resistor R2 can be connected to the second sampling circuit AD2, and the second end of the second voltage-dividing resistor R2 can also be connected to the third signal pin b of the third connector 31 via the third signal pin b of the first connector 11. The second signal pin cp of the first connector 11 can be connected to the second signal pin cp of the third connector 31 and can be connected to ground. The third voltage-dividing resistor R3 can be connected between the first signal pin a of the third connector 31 and the third signal pin b of the fourth connector 41, as shown in Figure 16b. The fourth voltage-dividing resistor R4 can be connected between the third signal pin b of the third connector 31 and the third signal pin b of the fourth connector 42. The second signal pin cp of the third connector 31 can be connected to the second signal pin cp of each of the fourth connector 41 and the fourth connector 42. The first signal pin a, second signal pin cp, and third signal pin b of the fourth connector 41 can be connected to the second connector 21, and the first signal pin a, second signal pin cp, and third signal pin b of the fourth connector 42 can be connected to the second connector 22. For a Class A power cord, the shorting pin c of the second connector 21 can short-circuit the first signal pin a and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can short-circuit the first signal pin a and the second signal pin cp of the first connector 12. For a Class B power cord, the shorting pin c of the second connector 21 can short-circuit the third signal pin b and the second signal pin cp of the first connector 11. The shorting pin c of the second connector 22 can short-circuit the third signal pin b and the second signal pin cp of the first connector 12.

[0150] Of course, the third voltage-dividing resistor R3 may also be connected between the first signal pin a of the third connector 31 and the first signal pin a of the fourth connector 41. Similarly, the fourth voltage-dividing resistor R4 may be connected between the third signal pin b of the third connector 31 and the first signal pin a of the fourth connector 42, which is not limited in this embodiment of the present application.

[0151] It can be seen that the power supply system 10 provided in the embodiment of the present application can identify the types of three types of power lines, namely, Class A power lines (4kW power lines), Class B power lines (6kW power lines) and Class C power lines (3kW power lines) through the voltage source Vcc, the first voltage divider resistor R1, the third connector 31, the fourth connector 41, the fourth connector 42, the first sampling circuit AD1 and the second sampling circuit AD2.

[0152] Furthermore, with respect to Figure 16a, the PM can identify the type of power line and output active power (which can be represented by P) in a single power input scenario, thereby preventing power line overload. For a PM with a rated power of 4kW and a PM with a rated power of 6kW, when the power supply system 10 is connected to different types of power lines, the second detection voltage from the first connector 11 and the output active power P collected by the first sampling circuit AD1 are shown in Table 1:

[0153] Table 1

[0154] As shown in Figure 16b, the PM can identify the types of two power lines in a dual power input scenario and output active power, thereby preventing power line overload. For a PM with a rated power of 4kW and a PM with a rated power of 6kW, when connected to different types of power lines, the second detection voltage from the first connector 11 and the output active power P collected by the first sampling circuit AD1 are shown in Table 2:

[0155] Table 2

[0156] In Table 2, in a dual power input scenario, the power system 10 has two power lines of the same type, and the power system 10 can operate in normal mode.

[0157] The power supply system 10 may also have an abnormal mode of connecting two power lines of different types, as shown in Table 3. It is divided into the following two cases:

[0158] Case 1: The two fourth connectors of the power supply system 10 are connected to the power lines

[0159] The power supply system 10 can output active power according to the rated power of the low-power level (such as 3kW) power line (i.e., the first power line). Alternatively, the power supply system 10 can output active power according to the rated power of the high-power level (such as 4kW) power line (i.e., the second power line) and issue an alarm message. The alarm message can be used to indicate the replacement of the high-power level power line. It is conceivable that the rated power of the low-power level power line is less than the rated power of the high-power level power line.

[0160] Table 3

[0161] Case 2: One of the fourth connectors of the power supply system 10 is connected to a power line and the other fourth connector is not connected to a power line

[0162] The connected power cord can be identified, and the fourth connector that is not connected to the power cord can determine whether the power supply in the system 10 is single input by identifying whether the power pin of the power cord is in place. If so, a prompt message is issued. The prompt message is used to indicate that another power cord needs to be plugged in.

[0163] As can be seen from the above embodiments, the present application can realize the type identification of power lines with different current carrying capacities through PM or through PM and PEM, and can also determine the active power output by the power supply system 10 according to the type of power line. In the embodiment of the present application, a third voltage-dividing resistor R3 can be set in a single power input scenario, and a third voltage-dividing resistor R3 and a fourth voltage-dividing resistor R5 can be set in a dual power input scenario, or by setting different voltage sources, the sampling circuit can collect different second detection voltages, thereby realizing the identification of the power line type. Of course, the above only introduces several possible implementation methods. The embodiment of the present application can also have other implementation methods, which will not be introduced in detail.

[0164] It is understandable that the embodiment of the present application can realize the identification of the power line type including the second connector (including two or three signal pins) through the power supply system including the first connector (including two or three signal pins). It is conceivable that the embodiment of the present application can also identify different types of power line types including more signal pins (shorting pins or short-circuit pins, etc.) through the first connector including four, five, or more signal pins. In other words, the embodiment of the present application is not only compatible with different types of power lines, but also supports the differentiation of multiple power lines.

[0165] An embodiment of the present application also provides a network device, as shown in Figures 17a and 17b.

[0166] 17a, the network device 100 may include a power line L1 and a power system 10. The power system 10 may be connected to the power line L1, and the power line L1 may be connected to a power supply PS1.

[0167] In Figure 17b, network device 100 may include power line L1, power line L2, and power system 10. Power system 10 may be connected to power line L1, and power system 10 may also be connected to power line L2. Power line L1 may be connected to power supply PS1, and power line L2 may be connected to power supply PS2.

[0168] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A power supply system, characterized in that: It includes a power supply module; the power supply module includes a voltage source, a sampling circuit and a first connector; wherein the first connector is used to connect to a power line; The voltage source is used to: provide a first detection voltage for the first connector; The sampling circuit is used to collect a second detection voltage from the first connector and identify the type of the power line according to the second detection voltage.

2. The power supply system according to claim 1, characterized in that: The first connector includes a first signal pin and a second signal pin; or, the first connector includes a first signal pin, a second signal pin and a third signal pin; The power line comprises a second connector, and the second connector is used to connect with the first connector; The second connector is used to short-circuit the first signal pin and the second signal pin, or to short-circuit the second signal pin and the third signal pin.

3. The power supply system according to claim 2, characterized in that: In the case where the power supply system is used to identify the type of a single power line, the power supply module further includes a first voltage-dividing resistor; a first end of the first voltage-dividing resistor is connected to the voltage source, a second end of the first voltage-dividing resistor is connected to the sampling circuit, and the second end of the first voltage-dividing resistor is connected to the second connector through a first signal pin of the first connector, and a second signal pin of the first connector is connected to the second connector and to a ground terminal; In the case where the power supply system is used to identify the types of multiple power lines, the power supply module includes multiple first connectors and multiple sampling circuits, the multiple power lines include multiple second connectors, and the power supply module also includes a first voltage-dividing resistor and a second voltage-dividing resistor; wherein the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor is connected to the voltage source; the second end of the first voltage-dividing resistor is connected to a first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor is also connected to one of the second connectors through a first signal pin of one of the first connectors; the second end of the second voltage-dividing resistor is connected to a second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is also connected to another second connector through a first signal pin of another first connector; the second signal pin of one of the first connectors is connected to one of the second connectors, the second signal pin of the other first connector is connected to the other second connector, and the second signal pin of each first connector is connected to the ground terminal.

4. The power supply system according to claim 3, characterized in that: In the case where the power supply system is used to identify the type of a single power line, the power supply module further includes a third voltage-dividing resistor; a first end of the third voltage-dividing resistor is connected to the sampling circuit, a first end of the third voltage-dividing resistor is connected to the second connector through a first signal pin of the first connector, and a second end of the third voltage-dividing resistor is connected to the second connector through a third signal pin of the first connector; or, a first end of the third voltage-dividing resistor is connected to the second connector through a third signal pin of the first connector, and a second end of the third voltage-dividing resistor is connected to the second connector through a first signal pin of the first connector; In the case where the power supply system is used to identify the types of multiple power lines, the power supply module further includes a third voltage-dividing resistor and a fourth voltage-dividing resistor; wherein the first end of the third voltage-dividing resistor is connected to the first sampling circuit, the first end of the third voltage-dividing resistor is also connected to one of the second connectors through the first signal pin of one of the first connectors, and the second end of the third voltage-dividing resistor is connected to one of the second connectors through the third signal pin of one of the first connectors; or, the first end of the third voltage-dividing resistor is also connected to one of the second connectors through the third signal pin of one of the first connectors, and the second end of the third voltage-dividing resistor is connected to one of the second connectors through the first signal pin of one of the first connectors; the first end of the fourth voltage-dividing resistor is connected to the second sampling circuit, the first end of the fourth voltage-dividing resistor is also connected to another second connector through the first signal pin of another first connector, and the second end of the fourth voltage-dividing resistor is connected to another second connector through the third signal pin of another first connector; or, the first end of the fourth voltage-dividing resistor is also connected to another second connector through the third signal pin of another first connector, and the second end of the fourth voltage-dividing resistor is connected to another second connector through the first signal pin of another first connector.

5. The power supply system according to claim 2, characterized in that: In the case where the power supply system is used to identify the type of a single power line, the power supply module includes multiple sampling circuits, and the power supply module also includes a first voltage-dividing resistor and a second voltage-dividing resistor; wherein the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor is connected to the voltage source; the second end of the first voltage-dividing resistor is connected to the first sampling circuit of the multiple sampling circuits, and the second end of the first voltage-dividing resistor is also connected to the second connector through the first signal pin of the first connector; the second end of the second voltage-dividing resistor is connected to the second sampling circuit of the multiple sampling circuits, and the second end of the second voltage-dividing resistor is also connected to the second connector through the third signal pin of the first connector; the second signal pin of the first connector is connected to the second connector and to the ground terminal; In the case where the power supply system is used to identify the types of multiple power lines, the power supply module includes multiple first connectors and multiple sampling circuits, the multiple power lines include multiple second connectors, and the power supply module also includes a first voltage-dividing resistor, a second voltage-dividing resistor, a fifth voltage-dividing resistor and a sixth voltage-dividing resistor; wherein the first end of each of the first voltage-dividing resistor, the second voltage-dividing resistor, the fifth voltage-dividing resistor and the sixth voltage-dividing resistor is connected to the voltage source; the second end of the first voltage-dividing resistor is connected to a first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor is also connected to one of the second connectors through a first signal pin of one of the first connectors; the second end of the second voltage-dividing resistor is connected to a second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is connected to a second sampling circuit among the multiple sampling circuits. The second end of the voltage resistor is also connected to one of the second connectors through the third signal pin of one of the first connectors; the second signal pin of one of the first connectors is connected to one of the second connectors and to the ground terminal; the second end of the fifth voltage-dividing resistor is connected to the third sampling circuit among the multiple sampling circuits, and the second end of the fifth voltage-dividing resistor is also connected to another second connector through the first signal pin of another first connector; the second end of the sixth voltage-dividing resistor is connected to the fourth sampling circuit among the multiple sampling circuits, and the second end of the sixth voltage-dividing resistor is also connected to the other second connector through the third signal pin of the other first connector; the second signal pin of the other first connector is connected to the other second connector and to the ground terminal.

6. The power supply system according to claim 4 or 5, characterized in that: The power supply system further comprises an input module; the input module comprises a third connector and a fourth connector; The third connector is used to connect with the first connector, and the fourth connector is used to connect with the second connector.

7. The power supply system according to claim 2, characterized in that: The power supply system also includes an input module; In the case where the power supply system is used to identify the type of a single power line, the input module includes a third connector and a fourth connector, and the power supply module also includes a first voltage-dividing resistor; a first end of the first voltage-dividing resistor is connected to the voltage source, a second end of the first voltage-dividing resistor is connected to the sampling circuit, and the second end of the first voltage-dividing resistor is also connected to a first signal pin of the first connector; the first signal pin of the first connector is connected to the second connector through the first signal pin of the third connector and the first signal pin of the fourth connector; the second signal pin of the first connector is connected to the second connector through the second signal pin of the third connector and the second signal pin of the fourth connector, and the second signal pin of the first connector is connected to the ground terminal; In the case where the power supply system is used to identify the types of multiple power lines, the input module includes a third connector and multiple fourth connectors, the power supply module includes multiple sampling circuits, the multiple power lines include multiple second connectors, and the power supply module also includes a first voltage-dividing resistor and a second voltage-dividing resistor; the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor is connected to the voltage source; the second end of the first voltage-dividing resistor is connected to the first sampling circuit among the multiple sampling circuits, the second end of the first voltage-dividing resistor is also connected to the first signal pin of the first connector, the second end of the second voltage-dividing resistor is connected to the second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is also connected to the first connector The first signal pin of the first connector is connected to the third signal pin of the third connector; the first signal pin of the first connector is connected to one of the second connectors through the first signal pin of the third connector and the first signal pin of one of the fourth connectors; the third signal pin of the first connector is connected to the other second connector through the third pin of the third connector and the first signal pin of another fourth connector; the second signal pin of the first connector is connected to the second signal pin of the third connector and to the ground terminal; the second signal pin of the third connector is connected to one of the second connectors through the second signal pin of one of the fourth connectors, and the second signal pin of the third connector is also connected to the other second connector through the second signal pin of the other fourth connector.

8. The power supply system according to claim 2, characterized in that: The power supply system also includes an input module; In the case where the power supply system is used to identify the type of a single power line, the input module includes a third connector and a fourth connector, the power supply module also includes a first voltage-dividing resistor, and the input module also includes a third voltage-dividing resistor; the first voltage-dividing resistor is connected to the voltage source, the second end of the first voltage-dividing resistor is connected to the sampling circuit, and the second end of the first voltage-dividing resistor is connected to the first signal pin of the third connector through the first signal pin of the first connector, the second signal pin of the first connector is connected to the second signal pin of the third connector and to the ground terminal; the third voltage-dividing resistor is connected between the first signal pin of the third connector and the third signal pin of the fourth connector, or the third voltage-dividing resistor is connected between the first signal pin of the third connector and the first signal pin of the fourth connector; the second signal pin of the third connector is connected to the second signal pin of the fourth connector; the first signal pin, the second signal pin and the third signal pin of the fourth connector are respectively connected to the second connector; In the case where the power supply system is used to identify the types of multiple power lines, the input module includes a third connector and multiple fourth connectors, the power supply module includes multiple sampling circuits, the multiple power lines include multiple second connectors, and the multiple second connectors correspond to the multiple fourth connectors one by one. The power supply module also includes a first voltage-dividing resistor and a second voltage-dividing resistor, and the input module also includes a third voltage-dividing resistor and a fourth voltage-dividing resistor; wherein the first end of each of the first voltage-dividing resistor and the second voltage-dividing resistor is connected to the voltage source, the second end of the first voltage-dividing resistor is connected to the first sampling circuit among the multiple sampling circuits, and the second end of the first voltage-dividing resistor is also connected to the first signal pin of the third connector through the first signal pin of the first connector; the second end of the second voltage-dividing resistor is connected to the second sampling circuit among the multiple sampling circuits, and the second end of the second voltage-dividing resistor is also connected to the third signal pin of the third connector through the third signal pin of the first connector. pin connection; the second signal pin of the first connector is connected to the second signal pin of the third connector and to the ground terminal; the third voltage-dividing resistor is connected between the first signal pin of the third connector and the third signal pin of one of the fourth connectors, or, the third voltage-dividing resistor is connected between the first signal pin of the third connector and the first signal pin of one of the fourth connectors; the fourth voltage-dividing resistor is connected between the third signal pin of the third connector and the third signal pin of another fourth connector, or, the fourth voltage-dividing resistor is connected between the third signal pin of the third connector and the first signal pin of the another fourth connector; the second signal pin of the third connector is connected to the second signal pin of the fourth connector; the first signal pin, the second signal pin and the third signal pin of one of the fourth connectors are connected to the one of the second connectors; the first signal pin, the second signal pin and the third signal pin of the other fourth connector are connected to the other second connector.

9. The power supply system according to any one of claims 2 to 8, characterized in that: The first connector also includes a first power pin; The friction distance of the first signal pin, the second signal pin or the third signal pin is smaller than the friction distance of the first power pin; The friction distance is used to indicate the movement distance of the contact point of the first signal needle, the second signal needle or the third signal needle.

10. The power supply system according to any one of claims 1 to 9, characterized in that: In case the power supply system is used to identify the type of a single power supply line, the power supply system is used to: When the rated power of the power line is less than the rated power of the power module, the active power is output according to the rated power of the power line; when the rated power of the power line is greater than the rated power of the power module, the active power is output according to the rated power of the power module.

11. The power supply system according to any one of claims 1 to 9, characterized in that: In a case where the types of a first power line and a second power line among the plurality of power lines identified by the power system are different, the power system is configured to: Output active power according to the rated power of the first power line; or output active power according to the rated power of the second power line, and issue an alarm message; wherein the rated power of the first power line is less than the rated power of the second power line; and the alarm message is used to indicate replacement of the first power line.

12. The power supply system according to any one of claims 1 to 9, characterized in that: In a case where a first power line and a second power line among the plurality of power lines identified by the power system are of the same type, the power system is configured to: When the rated power of the first power line or the second power line is less than the rated power of the power module, active power is output according to the rated power of the first power line or the second power line; when the rated power of the first power line or the second power line is greater than the rated power of the power module, active power is output according to the rated power of the power module.

13. A network device, characterized in that: It comprises a power cord and a power supply system as claimed in any one of claims 1 to 12; the power supply system is connected to the power cord.

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