Interface circuit and power distribution device

Abstract

The utility model discloses an interface circuit and a power distribution device. The interface circuit comprises a main control module, a power supply module and a plurality of power supply interfaces, the output end of the main control module is connected with the input end of the power supply module so as to send a power supply control signal to the power supply module, and the power supply control signal is used for configuring electrical parameters of each power supply interface; the output end of the power supply module is connected with the plurality of power supply interfaces so as to output corresponding interface power supply signals to the plurality of power supply interfaces, and the interface power supply signals are obtained according to power supply control signals; and each power supply interface is used for being connected with corresponding electric equipment in the power distribution device and supplying power to the electric equipment according to the received interface power supply signal. The main control module controls the interface power supply signals of the power supply interfaces by controlling the output of the power supply module, different interface power supply signals can be provided for different electric devices, the production cost is reduced, and the operation and maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power, in particular to an interface circuit and a power distribution device. BACKGROUND

[0002] With the continuous development of smart grid, higher requirements are put forward for the intelligence and automation level of the power system. As an important part of the smart grid, the power distribution box needs to have stronger communication and data processing capabilities. Direct current power supply can provide stable power supply for communication modules, data processors and other devices in the power distribution box, ensuring their normal operation and realizing efficient communication and data interaction with the upper power grid. For example, in the smart grid, sensors in the power distribution box can transmit the collected data to the control center through wireless communication, so as to realize real-time monitoring and management of the power system. Direct current power supply can provide reliable power supply guarantee for such communication, improving the stability and reliability of communication.

[0003] However, different sensing devices and collecting devices have different requirements for the supply voltage and supply current of direct current power supply, so different power supply units are needed to supply power, resulting in a bloated system, high production cost and low operation and maintenance efficiency. CONTENT OF THE INVENTION

[0004] In view of the above problems, the present application provides an interface circuit and a power distribution device to solve the above technical problems.

[0005] In a first aspect, the present application provides an interface circuit, which comprises a master control module, a power supply module and a plurality of power supply interfaces; the output end of the master control module is connected with the input end of the power supply module to send a power supply control signal to the power supply module, the power supply control signal being used to configure the electrical parameters of each power supply interface; the output end of the power supply module is connected with the plurality of power supply interfaces respectively to output corresponding interface power supply signals to the plurality of power supply interfaces respectively, the interface power supply signals being obtained according to the power supply control signal; each power supply interface is used to connect a corresponding power consumption device in the power distribution device, and each power supply interface is used to supply power to the corresponding power consumption device according to the received interface power supply signal.

[0006] In a possible implementation manner of the present application, the interface circuit further comprises a communication module, the communication module being connected with the master control module to transmit an uplink control signal from the uplink communication module to the master control module; the master control module is used to obtain the power supply control signal according to the uplink control signal.

[0007] In a possible implementation manner of the present application, the communication module is in communication connection with the uplink communication module to transmit a feedback signal from the master control module to the uplink communication module.

[0008] In a possible implementation of the present application, the uplink control signal comprises a setting power interface parameter signal, the setting power interface parameter signal carrying a target electrical parameter of the target power interface; the master control module is configured to obtain a power supply control signal according to the target electrical parameter and output the power supply control signal to the power supply module, so that the power supply module adjusts a current electrical parameter of the target power interface to the target electrical parameter according to the power supply control signal.

[0009] In a possible implementation of the present application, the uplink control signal comprises a reading power interface parameter signal, the reading power interface parameter signal carrying a unique code of the target power interface; the master control module is configured to obtain an electrical parameter of the target power interface according to the unique code of the target power interface, and generate a feedback signal according to the electrical parameter of the target power interface and output the feedback signal to the communication module.

[0010] In a possible implementation of the present application, the uplink control signal comprises a closing power interface output signal, the closing power interface output signal being used to represent that the target power interface has no interface power signal output; the master control module is configured to generate a power supply control signal according to the closing power interface output signal and output the power supply control signal to the power supply module, so that the power supply module stops outputting the interface power signal to the target power interface according to the power supply control signal.

[0011] In a possible implementation of the present application, the master control module is further configured to obtain the electrical parameter of the target power interface from the power supply module, and generate an interface state signal according to the electrical parameter of the target power interface and output the interface state signal to the communication module.

[0012] In a possible implementation of the present application, the power supply control signal further comprises power supply priority information of each power interface, and the power supply module is further configured to control each power interface to supply power to the corresponding power-consuming device according to the power supply priority information of each power interface.

[0013] In a possible implementation of the present application, the master control module is further configured to obtain real-time power of each power interface when the power interfaces supply power in order, and close the corresponding power interface according to the power supply priority information of each power interface in order from low to high when the sum of the real-time power of each power interface is greater than a preset power threshold.

[0014] In a second aspect, the present application further provides a power distribution device, which comprises a power distribution box body, a plurality of power-consuming devices arranged in the power distribution box body, and an interface circuit as in any one of the possible implementations of the first aspect connected with the plurality of power-consuming devices.

[0015] From the above, the present application has the following beneficial effects:

[0016] In the present application, the main control module is connected with the power module, and a power control signal is sent to the power module, so that the power module can output corresponding interface power supply signals to the plurality of power supply interfaces connected thereto according to the power control signal, and each power supply interface can supply power to the connected power consumption equipment according to the received interface power supply signal, thereby realizing power supply for different power consumption equipment by a single power module. Compared with the related art, the power supply system is greatly simplified, the production cost is reduced, and the operation and maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic diagram of an interface circuit provided in the embodiments of the present application;

[0019] Figure 2 is another structural schematic diagram of an interface circuit provided in the embodiments of the present application. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] In the embodiments of the present application, it should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0023] Moreover, the terms "including," "includes," "comprising," "comprises," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0024] In the description of the embodiments of the present application, the words "example" or "for example" are used to mean serving as an example, instance, or illustration, at 5 least with respect to the particular aspect being described. Any embodiment or design scheme described in the "example" or "for example" is not to be construed as preferred or having more advantages than another embodiment or design scheme. The word "example" or "for example" is used to present relative concepts in a clear manner.

[0025] In addition, "multiple" in the embodiments of the present application refers to two or more, and therefore "multiple" in the embodiments of the present application can also be understood as "at least two". "At least one" can be understood as one or more, for example, understood as one, two or more. For example, including at least one means including one, two or more, and does not limit which ones are included, for example, including at least one of A, B and C, and the included can be A, B, C, A and B, A and C, B and C, or A and B and C.

[0026] Because the required power supply voltage and power supply current of different sensing devices and collection devices in the distribution box are different, in the related art, power supply is realized by providing an independent power supply unit for each device. However, this not only occupies space, causes the power supply system to be bloated, but also increases the production cost, and the maintenance difficulty is also large.

[0027] Based on this, the embodiments of the present application provide an interface circuit and a power distribution device, the interface circuit can supply power to different power consumption devices through a single power module, which simplifies the power supply system, reduces the production cost, and improves the operation and maintenance efficiency.

[0028] The interface circuit and the power distribution device provided by the present application will be described in detail below.

[0029] First, the embodiments of the present application provide an interface circuit, please refer to Figure 1 , Figure 1 is a structural schematic diagram of the interface circuit provided in the embodiments of the present application, the interface circuit 100 can include a master control module 110, a power module 120 and a plurality of power supply interfaces, for example Figure 1The first power supply interface 1301, the second power supply interface 1302, the third power supply interface 1303, …, the Nth power supply interface (N is an integer greater than 1), and the like shown in the figure are connected to the input end of the power supply module 120; wherein the output end of the master control module 110 is connected to the input end of the power supply module 120 to send a power supply control signal to the power supply module 120, which can be used to configure the electrical parameters of each power supply interface; the output end of the power supply module 120 is connected to each power supply interface to output a corresponding interface power supply signal to each power supply interface, which is obtained according to the power supply control signal; each power supply interface can be used to connect the corresponding electrical equipment in the power distribution device, and each power supply interface is used to supply power to the corresponding electrical equipment according to the received interface power supply signal.

[0030] In the embodiment of the application, the output end of the master control module 110 is connected to the input end of the power supply module 120, so that the power supply control signal can be output to the power supply module 120. It can be understood that the power supply control signal can carry the electrical parameters of different power supply interfaces, and the electrical parameters here can include the power supply voltage, the power supply current, etc., and the electrical parameters of different power supply interfaces can be different.

[0031] For example, the power supply voltage of the first power supply interface 1301 can be configured as 12V, and the power supply current can be configured as 200mA, the power supply voltage of the second power supply interface 1302 can be configured as 5V, and the power supply current can be configured as 500mA, the power supply voltage of the third power supply interface 1303 can be configured as 3.3V, and the power supply current can be configured as 200mA, etc., which can be set according to the actual application scenario, which is not limited here.

[0032] The master control module 110 can be any existing controller, including but not limited to a microcontroller unit (MCU), a single-chip microcomputer, a system on chip (SOC), etc., which can be determined according to the actual application scenario, which is not limited here.

[0033] In the embodiment of the application, the power supply module 120 can be configured with a plurality of output ends, which can be connected one by one with a plurality of power supply interfaces, so that the power supply module 120 can output the interface power supply signal corresponding to each power supply interface obtained according to the power supply control signal to the corresponding power supply interface.

[0034] For example, the power supply requirement of the first power-consuming device 201 connected to the first power supply interface 1301 is a power supply voltage of 12V and a power supply current of 200mA, and therefore the power supply control signal output by the master control module 110 carries the power parameters of the first power supply interface 1301, i.e., a power supply voltage of 12V and a power supply current of 200mA. After receiving the power supply control signal, the power supply module 120 generates a corresponding first interface power supply signal (a power supply voltage of 12V and a power supply current of 200mA) and outputs the first interface power supply signal to the first power supply interface 1301, so that the first interface power supply signal is output to the first power-consuming device 201 through the first power supply interface 1301, and the first power-consuming device 201 is powered according to the first interface power supply signal. Similarly, if other power supply interfaces are also connected to other power-consuming devices, the power supply module 120 can also generate interface power supply signals for the other power supply interfaces according to the power supply control signal and output the interface power supply signals to the corresponding power supply interfaces, so as to power the power-consuming devices connected to the other power supply interfaces. For details, refer to the foregoing description of the first power supply interface 1301, which will not be repeated here.

[0035] The power supply module 120 can adopt an existing switching power supply or a combination of multiple switching power supplies, which can be set according to actual application scenarios and is not limited herein.

[0036] The power supply interface in the embodiments of the present application can adopt any existing power supply output port, such as a power supply socket and the like. The power-consuming devices can be various sensing devices and collection devices installed in the power distribution device, including but not limited to current sensors, voltage sensors, power sensors, temperature sensors and the like.

[0037] Each power supply interface can be connected to the power-consuming devices in the power distribution device. It can be understood that if two or more power-consuming devices require the same power supply voltage and power supply current, the two or more power-consuming devices can be connected to the same power supply interface and powered through the power supply interface. Power-consuming devices with different requirements for power supply voltage and power supply current can be connected to different power supply interfaces and powered through different power supply interfaces.

[0038] In the embodiments of the present application, the master control module 110 is connected to the power supply module 120 to send a power supply control signal to the power supply module 120, so that the power supply module 120 can output corresponding interface power supply signals to the multiple power supply interfaces connected thereto according to the power supply control signal, and each power supply interface can power the power-consuming devices connected thereto according to the received interface power supply signal. This realizes power supply to different power-consuming devices through a single power supply module, greatly simplifies the power supply system, reduces production costs, and improves operation and maintenance efficiency compared with related technologies that use different power supply units for power supply.

[0039] Next, continue with Figure 1 The unit modules shown are described in detail, as well as the specific implementation methods that may be used in practical applications.

[0040] like Figure 2 As shown, in some embodiments of this application, the interface circuit 100 may further include a communication module 140, which may be connected to the main control module 110 to transmit the uplink control signal from the uplink communication module 300 to the main control module 110; the main control module 110 may be used to obtain a power control signal based on the uplink control signal.

[0041] In this embodiment, the communication module 140 and the uplink communication module 300 can be connected by any existing communication method, including but not limited to wired communication using optical fibers, metal wires, etc., and wireless communication based on Bluetooth, WiFi, Zigbee, etc. The specific method can be determined according to the actual application scenario, and is not limited here.

[0042] The uplink communication module 300 can be a communication module located in a base station or control room. Users can send uplink control signals carrying power requirements to the communication module 140 through the uplink communication module 300, based on the power supply needs of the electrical equipment connected to each power supply interface. The communication module 140 is communicatively connected to the main control module 110, thereby transmitting the received uplink control signals to the main control module 110, allowing the main control module 110 to obtain power control signals based on these uplink control signals.

[0043] Understandably, each power supply interface can be configured with a unique code to uniquely identify that power supply interface. The uplink control signal can carry the unique code of the power supply interface connected to the electrical equipment, as well as electrical parameters such as the power supply voltage and current associated with that unique code. The main control module 110 can obtain the power control signal based on the uplink control signal to control the power module 120 to output the corresponding interface power supply signal to the corresponding power supply interface, thereby realizing the power supply to the electrical equipment.

[0044] In some embodiments of this application, the communication module 140 is communicatively connected to the uplink communication module 300, and can also transmit the feedback signal from the future autonomous control module 110 to the uplink communication module 300.

[0045] In this embodiment, after the main control module 110 controls the power module 120 to generate the corresponding interface power supply signal, it can also generate a corresponding feedback signal and output it to the communication module 140. The communication module 140 can then interact with the uplink communication module 300 and transmit the feedback signal to the uplink communication module 300, so that the user can monitor the output status of the power supply interface based on the feedback signal.

[0046] In some embodiments of the present application, the uplink control signal can comprise a setting power interface parameter signal, the setting power interface parameter signal can carry a target electrical parameter of a target power interface; the master control module 110 can be configured to output a power supply control signal to the power supply module 120 according to the target electrical parameter, so that the power supply module 120 can adjust the current electrical parameter of the target power interface to the target electrical parameter according to the power supply control signal.

[0047] It can be understood that the target power interface can be any one of the plurality of power interfaces connected to the power supply module 120, and the user can send a setting power interface parameter signal to the communication module 140 through the uplink communication module 300 according to the power supply demand of the current power consumption equipment connected to the target power interface, and the target electrical parameter of the target power interface carried by the setting power interface parameter signal corresponds to the power supply demand of the current power consumption equipment; it can be understood that the setting power interface parameter signal also carries a unique code of the target power interface.

[0048] After the communication module 140 transmits the setting power interface parameter signal to the master control module 110, the master control module 110 can determine the target power interface and the target electrical parameter of the target power interface according to the setting power interface parameter signal, so as to generate a power supply control signal to control the power supply module 120 to output a corresponding interface power supply signal to the target power interface, and accurately supply power to the current power consumption equipment connected to the target power interface.

[0049] For example, the target power interface is the first power interface 1301, the unique code of which is 01, the power supply demand of the current power consumption equipment is adjusted from a power supply voltage of 12V to a power supply voltage of 5V, and the power supply current remains 200mA, then the setting power interface parameter signal can comprise the unique code 01 of the first power interface 1301, the power supply voltage 5V and the power supply current 200mA; the master control module 110 can generate a corresponding power supply control signal according to the setting power interface parameter signal and output it to the power supply module 120, so that the power supply module 120 outputs a first interface power supply signal to the first power interface 1301 in response to the power supply control signal, so that the power supply voltage of the current power consumption equipment is adjusted from 12V to 5V, and the power supply current remains 200mA.

[0050] In some embodiments of the present application, the uplink control signal can also comprise a reading power interface parameter signal, the reading power interface parameter signal carries a unique code of a target power interface; the master control module 110 can be configured to obtain the electrical parameter of the target power interface according to the unique code of the target power interface, and generate a feedback signal according to the electrical parameter of the target power interface and output it to the communication module 140.

[0051] In the embodiments of the present application, the main control module 110 can also store the electrical parameter information of each power supply interface. The user can send a read power supply interface parameter signal through the uplink communication module 300 to obtain the electrical parameters of the target power supply interface. It can be understood that the read power supply interface parameter signal can also carry the unique code of the target power supply interface. After receiving the read power supply interface parameter signal, the main control module 110 can extract the unique code therefrom, and then obtain the electrical parameters associated with the unique code from the storage according to the unique code, generate a feedback signal according to the obtained electrical parameters and output the feedback signal to the communication module 140. The communication module 140 transmits the feedback signal to the uplink communication module 300. It can be understood that the feedback signal carries the electrical parameter information of the target power supply interface, so that the user can understand the current power supply situation of the target power supply interface.

[0052] In some embodiments of the present application, the uplink control signal can include a power supply interface output signal, which can be used to represent that the target power supply interface does not output the interface power supply signal. The main control module 110 can be configured to generate a power supply control signal according to the power supply interface output signal and output the power supply control signal to the power supply module 120, so that the power supply module 120 stops outputting the interface power supply signal to the target power supply interface according to the power supply control signal.

[0053] It can be understood that during the use of the power distribution device, some power supply interfaces can not be used temporarily, that is, not connected to the electrical equipment. At this time, the unused power supply interface is exposed to the outside, and the exposed power supply interface is more likely to be short-circuited, which may cause a fire risk.

[0054] In order to improve the power supply safety, in the embodiments of the present application, for the unused power supply interface, the user can send a power supply interface output signal to the communication module 140 through the uplink communication module 300, and the communication module 140 transmits the power supply interface output signal to the main control module 110. The main control module 110 determines the target power supply interface to be closed according to the unique code carried in the received power supply interface output signal, and generates a power supply control signal to output to the power supply module 120, so as to control the power supply module 120 to stop outputting the interface power supply signal to the target power supply interface, that is, to close the target power supply interface. At this time, the target power supply interface is no longer live, and the short circuit condition does not occur.

[0055] In some embodiments of the present application, the main control module 110 can also be configured to obtain the electrical parameters of the target power supply interface from the power supply module 120, and generate an interface state signal according to the electrical parameters of the target power supply interface and output the interface state signal to the communication module 140.

[0056] In the embodiments of the present application, after the power supply interface is operated, such as setting the power supply interface parameter or closing the power supply interface, in order to know whether the operation is successful, the master control module 110 can access the power supply module 120 to obtain the electrical parameter of the target power supply interface, and then generate an interface state signal according to the obtained electrical parameter and output to the communication module 140, and the communication module 140 feeds back the interface state signal to the uplink communication module 300.

[0057] For example, after the first power supply interface 1301 is closed according to the closing power supply interface output signal, the master control module 110 can send a collection interface parameter signal carrying the unique code 01 of the first power supply interface 1301 to the power supply module 120, and the power supply module 120 feeds back the electrical parameter of the first power supply interface 1301 to the master control module 110 in response to the collection interface parameter signal, for example, the power supply module 120 feeds back the power supply voltage 0V and the power supply current 0mA of the first power supply interface 1301 to the master control module 110, and the master control module 110 determines that the first power supply interface 1301 is no longer powered and does not output externally according to the received electrical parameter, and then outputs an interface state signal to the communication module 140, and the communication module 140 feeds back the interface state signal to the uplink communication module 300, and the interface state signal can represent that the first power supply interface 1301 has been closed.

[0058] In some embodiments of the present application, the power supply control signal can also include power supply priority information of each power supply interface, and the power supply module 120 can also be used to control each power supply interface to supply power to the corresponding power consumption device according to the power supply priority information of each power supply interface.

[0059] In the embodiments of the present application, the power supply priority information of each power supply interface can be determined according to the importance or other priority information of the power consumption device connected to each power supply interface, and it can be understood that the priority order of the power supply interface is consistent with the priority order of the power consumption device.

[0060] When the power consumption device in the power distribution device is powered on, the master control module 110 can also control the power supply module to supply power to each power supply interface in order based on the pre-set power supply priority information, for example, the power supply interface with high power supply priority is powered first, and then the power supply interface with low power supply priority is powered, so that the power consumption device with high priority can be powered on and work before the power consumption device with low priority.

[0061] In the embodiments of the present application, the power supply priority information is used to supply power to each power supply interface in order, which can not only avoid the overload of simultaneous power supply, but also ensure that each power consumption device can be powered on and work normally.

[0062] In some embodiments of the present application, the master module 110 can also be configured to obtain the real-time power of each power supply interface when the power supply interfaces are sequentially powered, and to close the corresponding power supply interface according to the power supply priority information in order of priority from low to high when the sum of the real-time power of each power supply interface is greater than the preset power threshold.

[0063] In the embodiments of the present application, in order to further improve the power supply safety and ensure the normal operation of each device in the power distribution device, when the power supply module 120 controls the sequential power supply of each power supply interface, the master module 110 can also obtain the real-time power of each power supply interface, calculate the sum of the real-time power of each power supply interface, and maintain the power supply if the sum of the real-time power is less than or equal to the preset power threshold. Once the sum of the real-time power is greater than the preset power threshold, it means that the power is out of limit, and the master module 110 can close the corresponding power supply interface according to the power supply priority information. It can be understood that the order of closing the power supply interface can be opposite to the order of sequential power supply, that is, the corresponding power supply interface can be closed in order of priority from low to high.

[0064] For example, the power supply interface with the lowest power supply priority is closed first. If the sum of the real-time power is still greater than the preset power threshold after being closed, the power supply interface with the lowest power supply priority among all the current power supply interfaces is closed again, until the sum of the real-time power is less than or equal to the preset power threshold. The preset power threshold can be determined according to the actual application scenario, which is not limited here.

[0065] On the basis of the above-mentioned embodiments, the present application also provides a power distribution device, which can include a power distribution box body, a plurality of power consumption devices arranged in the power distribution box body, and an interface circuit as described above connected with the plurality of power consumption devices. Figure 1 and Figure 2 The interface circuit can be used to power the power consumption devices, which can be various types of sensing devices, collection devices, etc., including but not limited to current sensors, voltage sensors, power sensors, temperature sensors, etc. In the embodiments of the present application, the power distribution device can be a power distribution box, an electric meter box, a power distribution cabinet, a power cabinet, a switch cabinet, etc.

[0066] Since the power distribution device includes the interface circuit as described above in any of the embodiments of the present application, all the beneficial effects that can be achieved by the interface circuit as described above in any of the embodiments of the present application can be achieved, which are described in detail above and will not be repeated here. Figure 1 and Figure 2 The interface circuit as described above in any of the embodiments of the present application can achieve all the beneficial effects that can be achieved by the interface circuit as described above in any of the embodiments of the present application, which are described in detail above and will not be repeated here. Figure 1 and Figure 2 The interface circuit as described above in any of the embodiments of the present application can achieve all the beneficial effects that can be achieved by the interface circuit as described above in any of the embodiments of the present application, which are described in detail above and will not be repeated here.

[0067] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some more changes or modifications to the equivalent embodiments with the disclosed technical content, as long as the changes or modifications do not deviate from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the scope of the technical solution of the present application.

Claims

1. An interface circuit, characterized by The power supply interface includes a main control module, a power supply module and a plurality of power supply interfaces; The output end of the main control module is connected with the input end of the power supply module to send a power supply control signal to the power supply module, and the power supply control signal is used to configure the electrical parameters of each power supply interface; The output end of the power supply module is connected with a plurality of power supply interfaces respectively to output corresponding interface power supply signals to the plurality of power supply interfaces respectively, and the interface power supply signals are obtained according to the power supply control signal; Each power supply interface is used to connect a corresponding electrical equipment in a power distribution device, and each power supply interface is used to supply power to the corresponding electrical equipment according to the received interface power supply signal.

2. The interface circuit of claim 1, wherein, The interface circuit further includes a communication module connected with the main control module to transmit an uplink control signal from the uplink communication module to the main control module; and the main control module is used to obtain the power supply control signal according to the uplink control signal.

3. The interface circuit of claim 2, wherein, The communication module is in communication connection with the uplink communication module to transmit a feedback signal from the main control module to the uplink communication module.

4. The interface circuit of claim 2, wherein, The uplink control signal includes a power supply interface parameter setting signal, and the power supply interface parameter setting signal carries a target electrical parameter of a target power supply interface; The main control module is used to obtain the power supply control signal output to the power supply module according to the target electrical parameter, so that the power supply module adjusts the current electrical parameter of the target power supply interface to the target electrical parameter according to the power supply control signal.

5. The interface circuit of claim 2, wherein, The uplink control signal includes a power supply interface parameter reading signal, and the power supply interface parameter reading signal carries a unique code of a target power supply interface; The main control module is used to obtain the electrical parameter of the target power supply interface according to the unique code of the target power supply interface, and generate the feedback signal output to the communication module according to the electrical parameter of the target power supply interface.

6. The interface circuit of claim 2, wherein, The uplink control signal includes a power supply interface output signal, and the power supply interface output signal is used to represent that the target power supply interface has no interface power supply signal output; The main control module is used to generate the power supply control signal output to the power supply module according to the power supply interface output signal, so that the power supply module stops outputting the interface power supply signal to the target power supply interface according to the power supply control signal.

7. The interface circuit of claim 6, wherein, The main control module is further used to obtain the electrical parameter of the target power supply interface from the power supply module, and generate an interface state signal output to the communication module according to the electrical parameter of the target power supply interface.

8. The interface circuit of any one of claims 1-7, wherein, The power supply control signal further includes power supply priority information of each power supply interface, and the power supply module is further used to control each power supply interface to supply power to the corresponding electrical equipment according to the power supply priority information of each power supply interface.

9. The interface circuit of claim 8, wherein, The main control module is further used to obtain the real-time power of each power supply interface when each power supply interface supplies power in order, and when the sum of the real-time power of each power supply interface is greater than a preset power threshold, to close the corresponding power supply interface according to the power supply priority information of each power supply interface in order from low to high priority.

10. A power distribution device, characterized by, The interface circuit is connected with a plurality of electrical equipment in a distribution box.

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