Intelligent distribution box

Abstract

The utility model provides an intelligent power distribution box, which relates to the technical field of power distribution and comprises a power distribution unit, the power distribution unit comprises two commercial power incoming line ends, a double-circuit automatic switching circuit breaker, a display screen, a protection unit, an equipment power distribution unit and an uninterruptible power supply end, the two commercial power incoming line ends are connected with a main circuit through the double-circuit automatic switching circuit breaker, and the display screen is connected with the protection unit. The main line is connected with equipment power distribution, and one path of the main line is connected with the display screen; and the communication control unit is respectively connected with the protection unit and the RS485 communication interface on the display screen through serial port connecting lines. According to the utility model, the circuit breaker, the contactor, the electric energy metering module, the power supply lightning protection module, the emergency protection power taking module and other functional modules are integrated in the same device, and mutual coordination and data sharing among the functional modules are realized based on the remote IO module, so that the operation efficiency and stability of the whole power distribution system are improved; meanwhile, the maintenance cost and the failure rate are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution, in particular to an intelligent power distribution box. Background Art

[0002] At present, the components in the distribution box of the 5T equipment room are old, the data between the components cannot be communicated, and there is no visual monitoring and early warning function, which makes it impossible to realize real-time monitoring of the circuit operation status. It is easy to cause power failure and fire hazards due to overload or short circuit, making it impossible for the 5T equipment to ensure driving safety. Summary of the Invention

[0003] The purpose of this utility model is to provide an intelligent distribution box to solve the above problems. In order to achieve the above purpose, the technical solution adopted by this utility model is as follows:

[0004] This application provides an intelligent distribution box, comprising:

[0005] A power distribution unit, comprising two mains power incoming terminals, a dual-circuit automatic switching circuit breaker, a display screen, a protection unit, a device power distribution terminal, and an uninterruptible power supply terminal. The two mains power incoming terminals are connected to the main line via a dual-circuit automatic switching circuit breaker. The main line is connected to the device power distribution terminal. One of the main lines is connected to the display screen, and the other line of the main line is connected to the protection unit. The uninterruptible power supply terminal is connected to the display screen and the protection unit. The display screen and the protection unit are both provided with RS485 communication interfaces.

[0006] A communication control unit is connected to the protection unit and the RS485 communication interface on the display screen via a serial port connection line.

[0007] Furthermore, the power distribution unit includes a temperature and humidity sensor,

[0008] The temperature and humidity sensor is connected to the uninterruptible power supply, the temperature and humidity sensor is provided with an RS485 communication interface, and the communication control unit is connected to the RS485 communication interface on the temperature and humidity sensor via a serial port connection line.

[0009] Furthermore, the protection unit includes a backup protector, a power surge protector, and a lightning counter.

[0010] One end of the backup protector is connected to the main line, the other end of the backup protector is grounded through the power surge protector, the main power supply line of the lightning counter is connected to the main line, the backup power line of the lightning counter is connected to the uninterruptible power supply end, and the lightning signal acquisition line of the lightning counter is grounded.

[0011] Furthermore, the device power distribution includes a first circuit connected to the first device, a second circuit connected to the second device, a third circuit connected to the lighting, a fourth circuit connected to the socket, a fifth circuit connected to the five-hole emergency modular socket, and a sixth circuit connected to the temperature and humidity controller.

[0012] A first circuit breaker is provided on the first line, a second circuit breaker is provided on the second line, a third circuit breaker is provided on the third line, and a fourth circuit breaker is provided on the fourth line. The first line, the second line, the third line, the fourth line, the fifth line and the sixth line are all connected to the main line, and the first line, the second line, the third line, the fourth line, the fifth line and the sixth line are all connected in parallel.

[0013] Furthermore, the communication control unit includes a main control unit and a data exchange unit, and the data exchange unit includes a USR-K module, a first capacitor C27, a second capacitor C28, a first resistor R6 and a second resistor R8.

[0014] The main control unit is an STM32 microcontroller;

[0015] One end of the first capacitor C27 and the second capacitor C28 is connected to the power supply pin of the USR-K module, the other end of the first capacitor C27 and the second capacitor C28 is grounded, the receiving pin of the USR-K module is connected to the pin PB10 of the main control unit, the sending pin of the USR-K module is connected to the pin PB11 of the main control unit, the reset pin of the USR-K module is connected to the pin PB0 of the main control unit through the first resistor R6, and the recovery configuration pin of the USR-K module is connected to the pin PB1 of the main control unit through the second resistor R8.

[0016] Furthermore, the communication control unit further includes a data transmission unit, which includes an ADM2483 module, a third resistor R5, a fourth resistor R11, a voltage divider module, a voltage stabilization module, a first resettable fuse P1, a second resettable fuse P2 and a transistor GA1.

[0017] The receiving pin of the ADM2483 module is connected to the pin PA10 of the main control unit, the receiving control pin and the sending control pin of the ADM2483 module are connected to the pin PA8 of the main control unit, and the sending pin of the ADM2483 module is connected to the pin PA9 of the main control unit;

[0018] The differential signal negative pin of the ADM2483 module is connected to the isolated ground through the third resistor R5, and the differential signal positive pin of the ADM2483 module is connected to the isolated power supply through the fourth resistor R11;

[0019] The differential signal negative pin of the ADM2483 module is connected to the input port a of the voltage divider module, the differential signal positive pin of the ADM2483 module is connected to the input port b of the voltage divider module, the output port c of the voltage divider module is connected to the input port e of the voltage stabilizing module, and the output port d of the voltage divider module is connected to the input port f of the voltage stabilizing module;

[0020] The output port g of the voltage stabilizing module is connected to one end of the first resettable fuse P1, and the other end of the first resettable fuse P1 is connected to one end of the transistor GA1;

[0021] The output port h of the voltage stabilizing module is connected to one end of the second resettable fuse P2 , and the other end of the second resettable fuse P2 is connected to the other end of the transistor GA1 .

[0022] Furthermore, the voltage dividing module includes a fifth resistor R9, a sixth resistor R7 and a seventh resistor R10, and the voltage stabilizing module includes a first bidirectional voltage regulator diode D5, a second bidirectional voltage regulator diode D6 and a third bidirectional voltage regulator diode D7.

[0023] One end of the fifth resistor R9 is connected to the differential signal negative pin of the ADM2483 module and one end of the sixth resistor R7, and the other end of the fifth resistor R9 is connected to the differential signal positive pin of the ADM2483 module and one end of the seventh resistor R10;

[0024] One end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the first bidirectional zener diode D5. Another end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the second bidirectional zener diode D6 and the third bidirectional zener diode D7 in sequence.

[0025] One end of the second bidirectional voltage regulator diode D6 close to the sixth resistor R7 is connected to the first resettable fuse P1 , and one end of the third bidirectional voltage regulator diode D7 close to the seventh resistor R10 is connected to one end of the second resettable fuse P2 .

[0026] Furthermore, the communication control unit also includes a power conversion module, which includes a TPS5430 module, an LM1117 module, a first diode D1, a third capacitor C3, a fourth capacitor C21, a fuse F1, a fifth capacitor C2, a second diode D2, a first inductor L1, an eighth resistor R1, a ninth resistor R4, a sixth capacitor C1, a seventh capacitor C6, a tenth resistor R2, a first light-emitting diode D3, a second inductor L2, an eighth capacitor C22, a ninth capacitor C5, a tenth capacitor C4, an eleventh resistor R3 and a second light-emitting diode D4.

[0027] The input voltage pin of the TPS5430 module is connected to the third capacitor C3, the fourth capacitor C21, and one end of the fuse F1. The other end of the fuse F1 is connected to the cathode of the first diode D1. The anode of the first diode D1 is connected to the ends of the third capacitor C3 and the fourth capacitor C21 away from the input voltage pin of the TPS5430 module.

[0028] The start pin of the TPS5430 module is connected to one end of the fifth capacitor C2, the other end of the fifth capacitor C2 is connected to the power ground pin of the TPS5430 module, the power ground pin of the TPS5430 module is connected to the cathode of the second diode D2, the cathode of the second diode D2 is connected to one end of the first inductor L1, and the other end of the first inductor L1 is connected to one end of the eighth resistor R1;

[0029] The voltage detection pin of the TPS5430 module is connected to an end of the eighth resistor R1 away from the first inductor L1 and an end of the ninth resistor R4;

[0030] One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the sixth capacitor C1 and the seventh capacitor C6, and the other end of the sixth capacitor C1 is connected to the other end of the seventh capacitor C6;

[0031] One end of the first inductor L1 close to the eighth resistor R1 is connected to the anode of the first light-emitting diode D3 through the tenth resistor R2, and the cathode of the first light-emitting diode D3 is grounded;

[0032] One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the second inductor L2, the other end of the second inductor L2 is connected to one end of the eighth capacitor C22, one end of the ninth capacitor C5, and an input pin of the LM1117 module, and a ground pin of the LM1117 module is connected to the other ends of the eighth capacitor C22 and the ninth capacitor C5;

[0033] The heat sink pin of the LM1117 module is connected to the output pin of the LM1117 module, the output pin of the LM1117 module is connected to one end of the tenth capacitor C4, the other end of the tenth capacitor C4 is connected to the ground pin of the LM1117 module, the output pin of the LM1117 module is connected to the positive electrode of the second light-emitting diode D4 through the eleventh resistor R3, and the negative electrode of the second light-emitting diode D4 is connected to the ground pin of the LM1117 module.

[0034] Furthermore, the uninterruptible power supply end includes an uninterruptible power supply, a power filter and a circuit breaker power supply. The uninterruptible power supply is connected to one side of the circuit breaker power supply through the power filter, and the other side of the circuit breaker power supply is connected to the display screen, the temperature and humidity sensor and the lightning counter.

[0035] Furthermore, the dual-circuit automatic switching circuit breaker is provided with a normal power indicator light, a normal closing indicator light, a backup unit indicator light and a backup closing indicator light, and the temperature and humidity controller is provided with an exhaust indicator light and a defrost indicator light.

[0036] The beneficial effects of the utility model are:

[0037] The utility model integrates functional modules such as circuit breakers, contactors, electric energy metering modules, power supply lightning protection and emergency protection power supply into the same device, and realizes mutual coordination and data sharing among the functional modules based on the remote IO module, thereby improving the operating efficiency and stability of the entire power distribution system, while reducing maintenance costs and failure rates.

[0038] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the embodiments of the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a schematic diagram of the intelligent distribution box described in the utility model;

[0041] Figure 2Schematic diagram of the STM32 microcontroller described in the utility model;

[0042] Figure 3 This is a structural diagram of the data exchange unit described in the present utility model;

[0043] Figure 4 This is a structural diagram of the data transmission unit described in the present utility model;

[0044] Figure 5 This is a structural diagram of the power conversion module described in the present utility model.

[0045] Markings in the figure: 1. AC power incoming line terminal; 2. Dual-circuit automatic switching circuit breaker; 3. Display screen; 4. Protection unit; 5. Equipment power distribution; 6. Uninterruptible power supply terminal; 7. Temperature and humidity sensor; 8. Voltage divider module; 9. Voltage stabilization module; 10. Power distribution unit; 20. Communication control unit; 41. Backup protector; 42. Power surge protector; 43. Lightning counter; 61. Uninterruptible power supply; 62. Power filter; 63. Circuit breaker power supply. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0048] Example 1:

[0049] like Figure 1 As shown, this embodiment provides an intelligent distribution box, including:

[0050] The power distribution unit 10 includes two mains power incoming terminals 1, a dual-circuit automatic switching circuit breaker 2, a display screen 3, a protection unit 4, a device power distribution 5, and an uninterruptible power supply terminal 6. The two mains power incoming terminals 1 are connected to the main line through the dual-circuit automatic switching circuit breaker 2. The device power distribution 5 is connected to the main line. One line of the main line is connected to the display screen 3, and the other line of the main line is connected to the protection unit 4. The uninterruptible power supply terminal 6 is connected to the display screen 3 and the protection unit 4. The display screen 3 and the protection unit 4 are both provided with RS485 communication interfaces.

[0051] In the embodiment of the present application, the two mains power incoming terminals 1 serve as the input terminals of the distribution box, which are used to access the mains power from two different power grids or power sources, thereby improving the reliability and redundancy of the power supply. When one mains power fails, the other can automatically switch to ensure uninterrupted power supply.

[0052] The dual-circuit automatic switching circuit breaker 2 can automatically detect the power supply conditions of the two mains circuits and quickly switch to the other mains circuit when one mains circuit fails, thereby ensuring continuous power supply of the main circuit.

[0053] Display screen 3 is used to display various parameters of the power system in real time, such as voltage, current, power, etc., to help operation and maintenance personnel understand the operating status of the system.

[0054] The protection unit 4 is used to monitor abnormal conditions on the main line, such as overload or short circuit, and take protective measures when necessary to prevent equipment damage or safety accidents.

[0055] The equipment power distribution 5 is the output end of the distribution box, which is responsible for distributing the processed power to each electrical device.

[0056] The uninterruptible power supply terminal 6 is used to provide emergency power supply to ensure that key equipment, such as display screens and protection units, can still operate for a short time after the main line power is cut off, so as to perform necessary operations or save data.

[0057] The communication control unit 20 is connected to the protection unit 4 and the RS485 communication interface on the display screen 3 via a serial port connection line;

[0058] In the embodiment of the present application, the communication control unit 20 can be connected to the RS485 communication interface on the display screen 3 and the protection unit 4 through a serial port connection line to achieve two-way data transmission.

[0059] The communication control unit 20, as the data transmission hub, is primarily responsible for collecting power system parameters and protection status information sent by the display screen 3 and protection unit 4, and forwarding it to the monitoring center or other management system. It can also receive instructions from the monitoring center to remotely control and adjust the distribution box.

[0060] The power distribution unit 10 includes a temperature and humidity sensor 7, which is connected to the uninterruptible power supply 6. The temperature and humidity sensor 7 is provided with an RS485 communication interface. The communication control unit 20 is connected to the RS485 communication interface on the temperature and humidity sensor 7 via a serial port connection line;

[0061] In the embodiment of the present application, the humidity sensor 7 is capable of monitoring the temperature and humidity inside the distribution box or the surrounding environment in real time, thereby avoiding the occurrence of equipment failures and the like due to environmental factors.

[0062] The protection unit 4 includes a backup protector 41, a power surge protector 42, and a lightning counter 43. One end of the backup protector 41 is connected to the main line, and the other end of the backup protector 41 is grounded through the power surge protector 42. The main power supply line of the lightning counter 43 is connected to the main line, the backup power line of the lightning counter 43 is connected to the uninterruptible power supply terminal 6, and the lightning signal collection line of the lightning counter 43 is grounded.

[0063] In this embodiment, the backup protector 41 provides overload and short-circuit protection for the distribution box. The power surge protector 42 can handle transient overvoltage and overcurrent caused by external factors such as lightning and power grid fluctuations. The lightning counter 43 records and assesses the impact of lightning activity. Through the coordinated operation of the backup protector 41, power surge protector 42, and lightning counter 43, the power distribution unit 10 forms a comprehensive protection mechanism, ensuring the stable operation of the distribution box and the safe operation of the electrical equipment within it.

[0064] The equipment power distribution 5 includes a first line connected to the first device, a second line connected to the second device, a third line connected to the lighting, a fourth line connected to the socket, a fifth line connected to the five-hole emergency modular socket, and a sixth line connected to the temperature and humidity controller. The first line is provided with a first circuit breaker, the second line is provided with a second circuit breaker, the third line is provided with a third circuit breaker, and the fourth line is provided with a fourth circuit breaker. The first line, the second line, the third line, the fourth line, the fifth line, and the sixth line are all connected to the main line, and the first line, the second line, the third line, the fourth line, the fifth line, and the sixth line are all connected in parallel;

[0065] In the embodiment of the present application, the first, second, third, fourth, fifth, and sixth lines are all connected to the main line, and the multiple lines are connected in parallel. That is, the lines do not affect each other. Even if one line fails, the other lines can still provide power normally. This connection method improves the reliability and stability of the distribution box, ensuring that the entire distribution box can maintain normal operation even if problems occur in some equipment or lines.

[0066] The communication control unit 20 includes a main control unit and a data exchange unit, the data exchange unit includes a USR-K module, a first capacitor C27, a second capacitor C28, a first resistor R6 and a second resistor R8, and the main control unit is an STM32 microcontroller; one end of the first capacitor C27 and the second capacitor C28 is connected to the power supply pin of the USR-K module, the other end of the first capacitor C27 and the second capacitor C28 is grounded, the receiving pin of the USR-K module is connected to the pin PB10 of the main control unit, the sending pin of the USR-K module is connected to the pin PB11 of the main control unit, the reset pin of the USR-K module is connected to the pin PB0 of the main control unit through the first resistor R6, and the recovery configuration pin of the USR-K module is connected to the pin PB1 of the main control unit through the second resistor R8;

[0067] In the embodiment of this application, Figure 2 FIG2 is a schematic diagram of an STM32 microcontroller. In addition to the pin connection relationship described below, the STM32 microcontroller also has other conventional pin connections, which are not particularly limited here.

[0068] like Figure 3 As shown, it is a structural diagram of the data exchange unit, the first capacitor C27 and the second capacitor C28 are connected in parallel between the power supply pin (VCC_3V3) and the ground of the USR-K module, for filtering and decoupling, to provide a stable power supply and reduce the impact of power supply noise on the performance of the module; the first resistor R6 and the second resistor R8 are respectively used to connect the reset pin (nRST) and the recovery configuration pin (Re l oad) of the USR-K module to the specified pin PB0 and pin PB1 of the STM32 microcontroller, and the addition of resistors can limit current, protect the pins of the STM32 microcontroller from high levels or transient voltages; when the STM32 microcontroller needs to reset the USR-K module, a reset signal can be sent to the reset pin (nRST) of the USR-K module; the recovery configuration pin (Re l oad) of the USR-K module is usually used to restore the default configuration of the module under specific conditions or perform specific initialization operations.

[0069] The receiving pin (RXD) of the USR-K module is used to receive data from the STM32 microcontroller; the transmitting pin (TXD) of the USR-K module is used to send data to the STM32 microcontroller. Through the above connection and configuration, the communication control unit 20 can achieve stable data transmission and reception and effective control of the module, providing reliable communication support for the entire system. The remaining pin connections of the USR-K module not involved can refer to the commonly used connection relationship and are not particularly limited here.

[0070] The communication control unit 20 also includes a data transmission unit, which includes an ADM2483 module, a third resistor R5, a fourth resistor R11, a voltage divider module 8, a voltage stabilizing module 9, a first resettable fuse P1, a second resettable fuse P2 and a transistor GA1. The receiving pin of the ADM2483 module is connected to the pin PA10 of the main control unit, the receiving control pin and the sending control pin of the ADM2483 module are connected to the pin PA8 of the main control unit, and the sending pin of the ADM2483 module is connected to the pin PA9 of the main control unit.

[0071] The differential signal negative pin of the ADM2483 module is connected to the isolated ground through the third resistor R5, and the differential signal positive pin of the ADM2483 module is connected to the isolated power supply through the fourth resistor R11;

[0072] The differential signal negative pin of the ADM2483 module is connected to the input port a of the voltage divider module 8, the differential signal positive pin of the ADM2483 module is connected to the input port b of the voltage divider module 8, the output port c of the voltage divider module 8 is connected to the input port e of the voltage regulator module 9, and the output port d of the voltage divider module 8 is connected to the input port f of the voltage regulator module 9;

[0073] The output port g of the voltage stabilizing module 9 is connected to one end of the first resettable fuse P1, and the other end of the first resettable fuse P1 is connected to one end of the transistor GA1;

[0074] The output port h of the voltage stabilizing module 9 is connected to one end of the second resettable fuse P2, and the other end of the second resettable fuse P2 is connected to the other end of the transistor GA1;

[0075] In the embodiment of this application, Figure 4 The figure shows the structure of the data transmission unit. The receiving pin (RXD) of the ADM2483 module is connected to the pin PA10 of the STM32 microcontroller to receive data from the RS-485 network. The receiving pin (RXD) of the ADM2483 module receives the control pin The transmit control pin (DE) and the transmit control pin (DE) are connected to the STM32 microcontroller pin PA8 to control the receive and transmit modes of the ADM2483 module; the transmit pin (TXD) of the ADM2483 module is connected to the STM32 microcontroller pin PA9 to send data to the RS-485 network.

[0076] The ADM2483 module's differential signal negative pin (B) is connected to the isolated ground through the third resistor R5, providing a reference potential for the differential signal. The ADM2483 module's differential signal positive pin (A) is connected to the isolated power supply through the fourth resistor R11, forming a differential signal pair with the differential signal negative pin (B) to achieve differential data transmission.

[0077] The voltage divider module 8 of the ADM2483 module is used to divide the differential signal output by the ADM2483 module to meet the input requirements of the subsequent voltage stabilization module 9; the voltage stabilization module 9 receives the output of the voltage divider module 8 and stabilizes it to a suitable voltage level to protect subsequent circuits from voltage fluctuations.

[0078] Both resettable fuses P1 and P2 automatically disconnect the circuit when excessive current flows and automatically resume conduction when the current returns to normal, protecting the circuit from short circuits and overloads. Transistor GA1 controls or regulates the current flowing to subsequent circuits. For the remaining pins of the ADM2483 module not described, refer to the commonly used pin connection method and are not specifically restricted here.

[0079] The voltage divider module 8 includes a fifth resistor R9, a sixth resistor R7, and a seventh resistor R10. The voltage stabilizing module 9 includes a first bidirectional voltage regulator diode D5, a second bidirectional voltage regulator diode D6, and a third bidirectional voltage regulator diode D7. One end of the fifth resistor R9 is connected to the differential signal negative pin of the ADM2483 module and one end of the sixth resistor R7. The other end of the fifth resistor R9 is connected to the differential signal positive pin of the ADM2483 module and one end of the seventh resistor R10.

[0080] One end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the first bidirectional zener diode D5. Another end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the second bidirectional zener diode D6 and the third bidirectional zener diode D7 in sequence.

[0081] One end of the second bidirectional voltage regulator diode D6 close to the sixth resistor R7 is connected to the first resettable fuse P1 , and one end of the third bidirectional voltage regulator diode D7 close to the seventh resistor R10 is connected to one end of the second resettable fuse P2 .

[0082] In the embodiment of the present application, the voltage divider module 8 divides the differential signal of the ADM2483 module through a resistor network to provide a suitable input voltage range for the subsequent voltage regulator module 9. In the voltage regulator module 9, the end of the second bidirectional voltage regulator diode D6 near the sixth resistor R7 is connected to the first resettable fuse P1. When the voltage exceeds the breakdown voltage of D6, D6 will turn on and direct the excess current to P1. P1 will then cut off the circuit when the current is too high. The end of the third bidirectional voltage regulator diode D7 near the seventh resistor R10 is connected to the second resettable fuse P2. The operating principle is similar to that described above and will not be repeated here.

[0083] The communication control unit 20 also includes a power conversion module, which includes a TPS5430 module, an LM1117 module, a first diode D1, a third capacitor C3, a fourth capacitor C21, a fuse F1, a fifth capacitor C2, a second diode D2, a first inductor L1, an eighth resistor R1, a ninth resistor R4, a sixth capacitor C1, a seventh capacitor C6, a tenth resistor R2, a first light-emitting diode D3, a second inductor L2, an eighth capacitor C22, a ninth capacitor C5, a tenth capacitor C4, an eleventh resistor R3, and a second light-emitting diode D4.

[0084] The input voltage pin of the TPS5430 module is connected to the third capacitor C3, the fourth capacitor C21, and one end of the fuse F1. The other end of the fuse F1 is connected to the cathode of the first diode D1. The anode of the first diode D1 is connected to the ends of the third capacitor C3 and the fourth capacitor C21 away from the input voltage pin of the TPS5430 module.

[0085] A startup pin of the TPS5430 module is connected to one end of a fifth capacitor C2, the other end of the fifth capacitor C2 is connected to a power ground pin of the TPS5430 module, the power ground pin of the TPS5430 module is connected to the cathode of a second diode D2, the cathode of the second diode D2 is connected to one end of a first inductor L1, and the other end of the first inductor L1 is connected to one end of an eighth resistor R1;

[0086] The voltage detection pin of the TPS5430 module is connected to an end of the eighth resistor R1 away from the first inductor L1 and an end of the ninth resistor R4;

[0087] One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the sixth capacitor C1 and the seventh capacitor C6, and the other end of the sixth capacitor C1 is connected to the other end of the seventh capacitor C6;

[0088] One end of the first inductor L1 close to the eighth resistor R1 is connected to the anode of the first light-emitting diode D3 through the tenth resistor R2, and the cathode of the first light-emitting diode D3 is grounded;

[0089] One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the second inductor L2. The other end of the second inductor L2 is connected to one end of the eighth capacitor C22, one end of the ninth capacitor C5, and an input pin of the LM1117 module. The ground pin of the LM1117 module is connected to the other ends of the eighth capacitor C22 and the ninth capacitor C5.

[0090] The heat sink pin of the LM1117 module is connected to the output pin of the LM1117 module, the output pin of the LM1117 module is connected to one end of the tenth capacitor C4, the other end of the tenth capacitor C4 is connected to the ground pin of the LM1117 module, the output pin of the LM1117 module is connected to the positive electrode of the second light-emitting diode D4 through the eleventh resistor R3, and the cathode of the second light-emitting diode D4 is connected to the ground pin of the LM1117 module;

[0091] In the embodiment of this application, Figure 5 As shown, the TPS5430 module's input voltage pin (VI N) is connected to the third capacitor C3, the fourth capacitor C21, and one end of the fuse F1. These capacitors filter and reduce input voltage ripple and noise, while fuse F1 acts as an overcurrent protection element. When the current is too high, it automatically blows, shutting off the circuit and preventing damage to subsequent components. The cathode of the first diode D1 is connected to fuse F1, while the anode is connected to the third capacitor C3 and the fourth capacitor C21, forming a reverse polarity protection diode. This ensures the power supply's positive and negative poles are correctly connected, preventing reverse voltage from damaging the circuit.

[0092] The startup pin (BOOT) of the TPS5430 module is connected to the fifth capacitor C2 to provide transient current during startup; the power ground pin (PH) of the TPS5430 module is connected to the cathode of the second diode D2 and one end of the first inductor L1, serving as the reference ground of the module; the voltage detection pin (VSNS) of the TPS5430 module monitors the output voltage after voltage division by the eighth resistor R1 and the ninth resistor R4 to ensure that it is stable within the set range.

[0093] The first inductor L1 works in conjunction with the TPS5430 module to achieve voltage conversion and voltage stabilization; the sixth capacitor C1 and the seventh capacitor C6 are connected in parallel to one end of the first inductor L1 to filter out ripple, which can reduce the ripple of the output voltage; the second inductor L2, the first inductor L1, the eighth capacitor C22, the ninth capacitor C5 and other components together form a more complex filtering network, further improving the stability of the output voltage.

[0094] The LM1117 module is a low-dropout linear regulator. Its input pin (IN) is connected to the filtered voltage, and the output pin (OUT) provides a stable low-voltage DC power. The heat sink pin (TAB) is usually connected to the output pin (OUT) to enhance heat dissipation.

[0095] The eighth capacitor C22 and the ninth capacitor C5 serve as input and output filter capacitors, respectively, and are connected to the input pin (IN) and output pin (OUT) of the LM1117 module, thereby reducing voltage fluctuations and noise. The tenth capacitor C4 is connected to the output pin (OUT) of the LM1117 module, which can further enhance the filtering effect. The first light-emitting diode D3 and the second light-emitting diode D4 are connected to the key nodes of the power conversion module via the tenth resistor R2 and the eleventh resistor R3, respectively, to indicate the operating status of the power supply. For example, the first light-emitting diode D3 is used to indicate the output status of the TPS5430 module, while the second light-emitting diode D4 is used to indicate the output status of the LM1117 module.

[0096] In summary, this power conversion module achieves high-efficiency voltage conversion through the TPS5430 module and provides stable low-voltage DC power through the LM1117 module. From left to right, the 12V input is converted to 5V by the TPS5430 module to power the data transmission unit, and then the LM1117 module powers the data exchange unit and main control unit. Simultaneously, multiple capacitors, inductors, resistors, and diodes are utilized to achieve effective filtering, protection, and status indication. For pins not covered in the TPS5430 and LM1117 modules, refer to the commonly used pin connection method and are not specifically limited here.

[0097] The uninterruptible power supply terminal 6 includes an uninterruptible power supply 61, a power filter 62, and a circuit breaker power supply 63. The uninterruptible power supply 61 is connected to one side of the circuit breaker power supply 63 through the power filter 62. The other side of the circuit breaker power supply 63 is connected to the display screen 3, the temperature and humidity sensor 7, and the lightning counter 43.

[0098] In this embodiment, the uninterruptible power supply (UPS) 61 ensures power supply continuity during utility power outages. The power filter 62 optimizes power quality and reduces noise and interference. The circuit breaker 63 distributes and protects power. Through the coordinated operation of the UPS 61, power filter 62, and circuit breaker 63, the power distribution unit 10 provides a stable and reliable power supply to certain devices within the distribution box.

[0099] The dual-circuit automatic switching circuit breaker 2 is provided with a normal power indicator light, a normal closing indicator light, a standby unit indicator light and a standby closing indicator light, and the temperature and humidity controller is provided with an exhaust indicator light and a defrost indicator light;

[0100] In the embodiment of the present application, the setting of the above-mentioned indicator lights not only facilitates the operation and maintenance personnel to monitor the distribution unit and the temperature and humidity environment, but also improves the reliability and maintainability of the system. The operation and maintenance personnel can quickly understand the current status of the system by observing the status of these indicator lights and take corresponding measures to ensure the normal operation of the system.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0102] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An intelligent distribution box, characterized in that: include: A power distribution unit (10), the power distribution unit (10) comprising two mains power incoming terminals (1), a dual-circuit automatic switching circuit breaker (2), a display screen (3), a protection unit (4), a device power distribution (5) and an uninterruptible power supply terminal (6), the two mains power incoming terminals (1) being connected to a main line via the dual-circuit automatic switching circuit breaker (2), the device power distribution (5) being connected to the main line, one of the main lines being connected to the display screen (3), the other of the main lines being connected to the protection unit (4), the uninterruptible power supply terminal (6) being connected to the display screen (3) and the protection unit (4), and both the display screen (3) and the protection unit (4) being provided with RS485 communication interfaces; A communication control unit (20) is connected to the protection unit (4) and the RS485 communication interface on the display screen (3) via serial port connection lines.

2. The intelligent distribution box according to claim 1, characterized in that: The power distribution unit (10) includes a temperature and humidity sensor (7), The temperature and humidity sensor (7) is connected to the uninterruptible power supply terminal (6), an RS485 communication interface is provided on the temperature and humidity sensor (7), and the communication control unit (20) is connected to the RS485 communication interface on the temperature and humidity sensor (7) via a serial port connection line.

3. The intelligent distribution box according to claim 2, characterized in that: The protection unit (4) includes a backup protector (41), a power surge protector (42), and a lightning counter (43). One end of the backup protector (41) is connected to the main line, the other end of the backup protector (41) is grounded through the power surge protector (42), the main power supply line of the lightning counter (43) is connected to the main line, the backup power line of the lightning counter (43) is connected to the uninterruptible power supply terminal (6), and the lightning signal collection line of the lightning counter (43) is grounded.

4. The intelligent distribution box according to claim 1, characterized in that The equipment power distribution (5) includes a first circuit connected to the first device, a second circuit connected to the second device, a third circuit connected to the lighting, a fourth circuit connected to the socket, a fifth circuit connected to the five-hole emergency modular socket, and a sixth circuit connected to the temperature and humidity controller. A first circuit breaker is provided on the first line, a second circuit breaker is provided on the second line, a third circuit breaker is provided on the third line, and a fourth circuit breaker is provided on the fourth line. The first line, the second line, the third line, the fourth line, the fifth line and the sixth line are all connected to the main line, and the first line, the second line, the third line, the fourth line, the fifth line and the sixth line are all connected in parallel.

5. The intelligent distribution box according to claim 1, characterized in that: The communication control unit (20) includes a main control unit and a data exchange unit, wherein the data exchange unit includes a USR-K module, a first capacitor C27, a second capacitor C28, a first resistor R6 and a second resistor R8, The main control unit is an STM32 microcontroller; One end of the first capacitor C27 and the second capacitor C28 is connected to the power supply pin of the USR-K module, the other end of the first capacitor C27 and the second capacitor C28 is grounded, the receiving pin of the USR-K module is connected to the pin PB10 of the main control unit, the sending pin of the USR-K module is connected to the pin PB11 of the main control unit, the reset pin of the USR-K module is connected to the pin PB0 of the main control unit through the first resistor R6, and the recovery configuration pin of the USR-K module is connected to the pin PB1 of the main control unit through the second resistor R8.

6. The intelligent distribution box according to claim 5, characterized in that The communication control unit (20) further includes a data transmission unit, which includes an ADM2483 module, a third resistor R5, a fourth resistor R11, a voltage divider module (8), a voltage stabilizing module (9), a first resettable fuse P1, a second resettable fuse P2 and a transistor GA1. The receiving pin of the ADM2483 module is connected to the pin PA10 of the main control unit, the receiving control pin and the sending control pin of the ADM2483 module are connected to the pin PA8 of the main control unit, and the sending pin of the ADM2483 module is connected to the pin PA9 of the main control unit; The differential signal negative pin of the ADM2483 module is connected to the isolated ground through the third resistor R5, and the differential signal positive pin of the ADM2483 module is connected to the isolated power supply through the fourth resistor R11; The differential signal negative pin of the ADM2483 module is connected to the input port a of the voltage divider module (8), the differential signal positive pin of the ADM2483 module is connected to the input port b of the voltage divider module (8), the output port c of the voltage divider module (8) is connected to the input port e of the voltage stabilizing module (9), and the output port d of the voltage divider module (8) is connected to the input port f of the voltage stabilizing module (9); The output port g of the voltage stabilizing module (9) is connected to one end of the first resettable fuse P1, and the other end of the first resettable fuse P1 is connected to one end of the transistor GA1; The output port h of the voltage stabilizing module (9) is connected to one end of the second resettable fuse P2, and the other end of the second resettable fuse P2 is connected to the other end of the transistor GA1.

7. The intelligent distribution box according to claim 6, characterized in that: The voltage dividing module (8) includes a fifth resistor R9, a sixth resistor R7 and a seventh resistor R10, and the voltage stabilizing module (9) includes a first bidirectional voltage regulator diode D5, a second bidirectional voltage regulator diode D6 and a third bidirectional voltage regulator diode D7. One end of the fifth resistor R9 is connected to the differential signal negative pin of the ADM2483 module and one end of the sixth resistor R7, and the other end of the fifth resistor R9 is connected to the differential signal positive pin of the ADM2483 module and one end of the seventh resistor R10; One end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the first bidirectional zener diode D5. Another end of the sixth resistor R7 away from the fifth resistor R9 is connected to one end of the seventh resistor R10 away from the fifth resistor R9 via the second bidirectional zener diode D6 and the third bidirectional zener diode D7 in sequence. One end of the second bidirectional voltage regulator diode D6 close to the sixth resistor R7 is connected to the first resettable fuse P1 , and one end of the third bidirectional voltage regulator diode D7 close to the seventh resistor R10 is connected to one end of the second resettable fuse P2 .

8. The intelligent distribution box according to claim 1, characterized in that: The communication control unit (20) further comprises a power conversion module, which comprises a TPS5430 module, an LM1117 module, a first diode D1, a third capacitor C3, a fourth capacitor C21, a fuse F1, a fifth capacitor C2, a second diode D2, a first inductor L1, an eighth resistor R1, a ninth resistor R4, a sixth capacitor C1, a seventh capacitor C6, a tenth resistor R2, a first light-emitting diode D3, a second inductor L2, an eighth capacitor C22, a ninth capacitor C5, a tenth capacitor C4, an eleventh resistor R3 and a second light-emitting diode D4. The input voltage pin of the TPS5430 module is connected to the third capacitor C3, the fourth capacitor C21, and one end of the fuse F1. The other end of the fuse F1 is connected to the cathode of the first diode D1. The anode of the first diode D1 is connected to the ends of the third capacitor C3 and the fourth capacitor C21 away from the input voltage pin of the TPS5430 module. The start pin of the TPS5430 module is connected to one end of the fifth capacitor C2, the other end of the fifth capacitor C2 is connected to the power ground pin of the TPS5430 module, the power ground pin of the TPS5430 module is connected to the cathode of the second diode D2, the cathode of the second diode D2 is connected to one end of the first inductor L1, and the other end of the first inductor L1 is connected to one end of the eighth resistor R1; The voltage detection pin of the TPS5430 module is connected to an end of the eighth resistor R1 away from the first inductor L1 and an end of the ninth resistor R4; One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the sixth capacitor C1 and the seventh capacitor C6, and the other end of the sixth capacitor C1 is connected to the other end of the seventh capacitor C6; One end of the first inductor L1 close to the eighth resistor R1 is connected to the anode of the first light-emitting diode D3 through the tenth resistor R2, and the cathode of the first light-emitting diode D3 is grounded; One end of the first inductor L1 close to the eighth resistor R1 is connected to one end of the second inductor L2, the other end of the second inductor L2 is connected to one end of the eighth capacitor C22, one end of the ninth capacitor C5, and an input pin of the LM1117 module, and a ground pin of the LM1117 module is connected to the other ends of the eighth capacitor C22 and the ninth capacitor C5; The heat sink pin of the LM1117 module is connected to the output pin of the LM1117 module, the output pin of the LM1117 module is connected to one end of the tenth capacitor C4, the other end of the tenth capacitor C4 is connected to the ground pin of the LM1117 module, the output pin of the LM1117 module is connected to the positive electrode of the second light-emitting diode D4 through the eleventh resistor R3, and the negative electrode of the second light-emitting diode D4 is connected to the ground pin of the LM1117 module.

9. The intelligent distribution box according to claim 3, characterized in that The uninterruptible power supply end (6) includes an uninterruptible power supply (61), a power filter (62) and a circuit breaker power supply (63). The uninterruptible power supply (61) is connected to one side of the circuit breaker power supply (63) through the power filter (62), and the other side of the circuit breaker power supply (63) is connected to the display screen (3), the temperature and humidity sensor (7) and the lightning counter (43).

10. The intelligent distribution box according to claim 4, characterized in that The dual-circuit automatic switching circuit breaker (2) is provided with a normal power indicator light, a normal closing indicator light, a standby unit indicator light and a standby closing indicator light, and the temperature and humidity controller is provided with an exhaust indicator light and a defrost indicator light.

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