An electrical equipment cabinet with a source-load matching state indicating function

Abstract

The utility model relates to an electrical equipment cabinet with source load matching state indication function, including power display unit and load equipment display unit, power display unit and load equipment display unit all include a plurality of ring LED lamp and a plurality of multicharacter nixie tube, the cabinet door corresponds a plurality of ring LED lamp and is opened the annular lamp groove, the middle part of lamp groove is opened square mounting hole, multicharacter nixie tube is fixedly arranged in square mounting hole, ring LED lamp and multicharacter nixie tube are connected with control unit, control unit includes MCU chip, first drive circuit and second drive circuit, still includes detection unit, the utility model divides and sets power display unit and load equipment display unit, and shows allocation state and operating condition through ring LED lamp and multicharacter nixie tube, and is equipped with control unit and is recognized input power and load equipment state through detection unit and controls ring LED lamp and multicharacter nixie tube.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, specifically to an electrical equipment cabinet with a source-load matching status indication function. Background Technology

[0002] With the continuous expansion of modern power systems and the increasing demands of users for power quality and reliability, electrical cabinets often house multiple input power sources and load devices. The indicator lights on the cabinet doors are often limited, making it difficult to distinguish the correspondence between input power sources and load devices, as well as the individual operating status of each. Therefore, traditional electrical cabinets are increasingly revealing their shortcomings in power distribution and status monitoring. They struggle to achieve flexible, accurate, and real-time monitoring and indication of power distribution among multiple input power sources and load devices. Especially in agile energy distribution scenarios, they cannot meet the precise status display requirements when a specific power source is supplying multiple load devices simultaneously, or when a specific load device is powered by only a single power source. This ultimately affects the safe and stable operation of the power system and the efficiency of operation and maintenance management. Utility Model Content

[0003] To address the shortcomings of existing electrical equipment cabinets in power distribution monitoring, this utility model proposes an electrical equipment cabinet with source-load matching status indication function. It is equipped with a power supply display unit and a load equipment display unit, and displays the distribution status and operation status through a ring LED light and a multi-digit digital tube. A control unit is set up to control the ring LED light and multi-digit digital tube by identifying the input power supply and load equipment status through the detection unit.

[0004] To achieve the above objectives, this utility model proposes an electrical equipment cabinet with source-load matching status indication function, including a cabinet body, in which multiple input power supplies are provided. Each input power supply is connected to a load device through a switch module and a wiring unit. Each input power supply is connected to at least one load device. The cabinet body includes a cabinet door, and a status display module is provided on the cabinet door. The status display module includes a power supply display unit and a load device display unit.

[0005] Both the power display unit and the load equipment display unit include multiple ring LED lights and multiple multi-digit digital tubes. The cabinet door has a ring-shaped light groove corresponding to the multiple ring LED lights. A square mounting hole is opened in the middle of the light groove, and a multi-digit digital tube is fixedly installed in the square mounting hole.

[0006] A control unit is connected to a ring LED light and a multi-digit LED display. The control unit includes an MCU chip, a first driving circuit, and a second driving circuit. The output terminal of the MCU chip is connected to the first driving circuit and the second driving circuit. The ring LED light forms a loop through the first driving circuit, and the multi-digit LED display forms a loop through the second driving circuit.

[0007] It also includes a detection unit, which includes a current sensor A, a voltage sensor A, a current sensor B, and a voltage sensor B. The current sensor A and the voltage sensor A are connected between the input power supply and the switching module, and the current sensor B and the voltage sensor B are connected between the wiring unit and the load device.

[0008] The output terminals of current sensor A, voltage sensor A, current sensor B, and voltage sensor B are connected to the input terminals of the MCU chip.

[0009] Furthermore, the number of the multiple ring LED lights and multi-digit digital tubes is the sum of the multiple input power supplies and multiple load devices;

[0010] The first driving circuit includes multiple transistor driving circuits. The number of transistor driving circuits is the same as the number of ring LEDs. The base of the transistor in the transistor driving circuit is connected to the output terminal of the MCU chip, the emitter is grounded, the collector is connected to the power supply and the positive terminal of the ring LED, and the negative terminal of the ring LED is grounded.

[0011] The second driving circuit includes multiple MAX7219 chips, which are cascaded with the MCU chip via the SPI serial port. The output of each MAX7219 chip is connected to a multi-digit LED display.

[0012] Each ring LED requires individual control using multiple transistor driver circuits forming a driver matrix, which individually controls the power on / off of each ring LED, resulting in a simple circuit structure. A single MAX7219 chip can drive an 8-digit 7-segment common cathode LED display, showing four groups of numbers from 1 to 99. Through cascading, up to sixty-four groups of numbers from 1 to 99 can be displayed. The connection method is simple, and the circuit cost is low.

[0013] Furthermore, an analog-to-digital converter is connected between the output terminals of the current sensor A, voltage sensor A, current sensor B, and voltage sensor B and the input terminal of the MCU chip. There are multiple analog-to-digital converters, which are cascaded with the I2C serial port of the MCU chip.

[0014] An analog-to-digital converter (ADC) is used to perform analog-to-digital conversion, facilitating data reception and processing by the MCU chip. The peripheral ADC also frees up I / O pins on the MCU chip, allowing for the acquisition of more data.

[0015] Furthermore, both current sensor A and current sensor B include an LA25-P current sensor. The input terminal of the LA25-P current sensor is connected to the input power supply or load device, and the output terminal is connected to the input terminal of the analog-to-digital converter via a filter capacitor. The LA25-P current sensor is a Hall current sensor, which can effectively handle high-current scenarios, converting high current into low current for data detection.

[0016] Furthermore, both voltage sensor A and voltage sensor B include a DVC1000-P voltage sensor. The input terminal of the DVC1000-P voltage sensor is connected to the input power supply or load device, and the output terminal is connected to the input terminal of the analog-to-digital converter via a filter capacitor. The DVC1000-P voltage sensor is an opto-isolated voltage sensor suitable for AC and DC voltage detection. It has a simple circuit structure and is easy to integrate.

[0017] Furthermore, the number of control units is multiple, and the corresponding number of MCU chips, first driving circuits, second driving circuits and detection units is also multiple. The number of MCU chips, first driving circuits, second driving circuits and detection units matches the number of multiple ring LEDs and multiple multi-digit digital tubes.

[0018] Furthermore, the plurality of lamp slots and mounting holes are divided into two columns according to the power display unit and the load equipment display unit, and the plurality of lamp slots and mounting holes in each column are arranged longitudinally at equal intervals;

[0019] On the side closest to the load equipment display unit, the corresponding number is set on the cabinet door for each of the multiple light slots.

[0020] The system uses unique serial numbers for easy viewing by staff, and the two columns help distinguish between the power supply display unit and the load equipment display unit.

[0021] The beneficial effects of this utility model through the above technical solution are as follows:

[0022] This invention displays the connection relationship between the input power supply and the load equipment, as well as the status of each component. It includes a power supply display unit and a load equipment display unit. Both units consist of multiple ring-shaped LEDs and multiple multi-digit LED displays, and are separated for easy viewing. The multi-digit LED displays show numerical numbers; for example, if the input power supply is numbered 1, the corresponding multi-digit LED displays for one or more load equipment connected to that power supply will also display 1, thus showing the connection relationship between the input power supply and the load equipment. The load equipment is identified by a number located on one side of the load equipment display unit. The ring-shaped LEDs display the status of the input power supply and the load equipment. For example, if the input power supply numbered 1 is disconnected, current sensor A and voltage sensor A input detection parameters, and the MCU chip turns off the ring-shaped LEDs via the first driving circuit, allowing operators to easily determine its status. Similarly, the ring-shaped LEDs corresponding to the load equipment can also display the status of the load equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an electrical equipment cabinet with source-load matching status indication function according to the present invention;

[0024] Figure 2 This is one of the circuit schematic diagrams of an electrical equipment cabinet with source-load matching status indication function according to this utility model;

[0025] Figure 3 This is the second circuit diagram of an electrical equipment cabinet with source-load matching status indication function according to this utility model;

[0026] Figure 4 This is the third circuit diagram of an electrical equipment cabinet with source-load matching status indication function according to this utility model.

[0027] The reference numerals in the attached diagram are as follows: 3 is the cabinet door, 4 is the ring LED light, 5 is the multi-digit digital tube, 6 is the light trough, 7 is the MCU chip, 8 is the first driving circuit, 9 is the second driving circuit, 10 is the detection unit, and 11 is the analog-to-digital converter. Detailed Implementation

[0028] Example 1

[0029] like Figures 1-4 As shown, an electrical equipment cabinet with source-load matching status indication function includes a cabinet body, in which multiple input power supplies are provided. Each input power supply is connected to a load device through a switch module and a wiring unit. Each input power supply is connected to at least one load device. The cabinet body includes a cabinet door 3, and a status display module is provided on the cabinet door 3. The status display module includes a power supply display unit and a load device display unit.

[0030] The power display unit and the load equipment display unit both include multiple ring LED lights 4 and multiple multi-digit digital tubes 5. The cabinet door 3 has a ring-shaped light groove 6 corresponding to the multiple ring LED lights 4. A square mounting hole is opened in the middle of the light groove 6, and a multi-digit digital tube 5 is fixedly installed in the square mounting hole.

[0031] The ring LED light 4 and the multi-digit LED tube 5 are connected to a control unit. The control unit includes an MCU chip 7, a first driving circuit 8 and a second driving circuit 9. The output terminal of the MCU chip 7 is connected to the first driving circuit 8 and the second driving circuit 9. The ring LED light 4 forms a loop through the first driving circuit 8 and the multi-digit LED tube 5 forms a loop through the second driving circuit 9.

[0032] It also includes a detection unit 10, which includes a current sensor A, a voltage sensor A, a current sensor B, and a voltage sensor B. The current sensor A and the voltage sensor A are connected between the input power supply and the switching module, and the current sensor B and the voltage sensor B are connected between the wiring unit and the load device.

[0033] The output terminals of current sensor A, voltage sensor A, current sensor B, and voltage sensor B are connected to the input terminals of MCU chip 7.

[0034] The number of the multiple ring LED lights 4 and the multi-digit digital tubes 5 is the sum of the multiple input power supplies and the multiple load devices;

[0035] The first driving circuit 8 includes multiple transistor driving circuits. The number of transistor driving circuits is the same as the number of ring LEDs 4. The base of the transistor in the transistor driving circuit is connected to the output terminal of the MCU chip 7, the emitter is grounded, the collector is connected to the power supply and the positive terminal of the ring LED 4, and the negative terminal of the ring LED 4 is grounded.

[0036] The second driving circuit 9 includes multiple MAX7219 chips, which are cascaded with the SPI serial port of the MCU chip 7. The output of the MAX7219 chips is connected to a multi-digit LED display 5.

[0037] An analog-to-digital converter (ADC) 11 is connected between the output terminals of current sensor A, voltage sensor A, current sensor B, and voltage sensor B and the input terminal of MCU chip 7. There are multiple ADCs 11, and the multiple ADCs 11 are cascaded with the I2C serial port of MCU chip 7.

[0038] Both current sensor A and current sensor B include an LA25-P current sensor. The input terminal of the LA25-P current sensor is connected to the input power supply or load device, and the output terminal is connected to the input terminal of the analog-to-digital converter 11 via a filter capacitor.

[0039] Both voltage sensor A and voltage sensor B include a DVC1000-P voltage sensor. The input terminal of the DVC1000-P voltage sensor is connected to the input power supply or load device, and the output terminal is connected to the input terminal of the analog-to-digital converter 11 via a filter capacitor.

[0040] The number of control units is multiple, and the corresponding number of MCU chips 7, first driving circuit 8, second driving circuit 9 and detection units 10 is also multiple. The number of MCU chips 7, first driving circuit 8, second driving circuit 9 and detection units 10 matches the number of multiple ring LEDs 4 and multiple multi-digit digital tubes 5.

[0041] The multiple light slots 6 and mounting holes are divided into two columns according to the power display unit and the load equipment display unit, and the multiple light slots 6 and mounting holes in each column are arranged longitudinally at equal intervals;

[0042] On the side closest to the load equipment display unit, the corresponding number is set on the cabinet door 3 for each of the multiple light slots 6.

[0043] In this embodiment, the MCU chip 7 is an STM32 microcontroller and the analog-to-digital converter 11 is an ADS1115 chip.

[0044] During operation, current sensor A and voltage sensor A detect the input power supply side, while current sensor B and voltage sensor B detect the load equipment side. The electrical signals are transmitted to the MCU chip 7 via analog-to-digital converter 11. The MCU chip 7 receives the signals and processes the data, determining whether the input voltage and current values ​​match the set values. Matching indicates that the input power supply or load equipment is working normally; discrepancies indicate that the input power supply or load equipment is malfunctioning. If input power supply number 1 is detected to be disconnected, the MCU chip 7 controls the corresponding ring LED 4 to turn off via the first drive circuit 8. For the load equipment, if the detected value on the load equipment side does not match the set value, the MCU chip 7 controls the corresponding ring LED 4 to turn off via the first drive circuit 8.

[0045] The MCU chip 7 controls the multi-digit LED display 5 to display numbers via the second drive circuit 9. According to the wiring relationship within the electrical cabinet, there are a total of input power supplies 1-8, corresponding to the numbers 1-8. The load devices 1-8 correspond to the numbers 1-8 set on the cabinet door 3 using laser engraving or high-precision screen printing.

[0046] If the wiring relationship within the electrical system is as follows: load device 1-2 is connected to the input power supply, and input power supply 2 is not connected to the load device. Input power supply 3 is connected to load device 3, and load device 4 is not connected to the input power supply.

[0047] The ring LEDs 4 of the power supply display unit are numbered 1-8, and the ring LEDs 4 of the load equipment display unit are numbered 9-16. Corresponding to the above description, the ring LED 4 of input power supply 1 is numbered 1, the ring LEDs 4 of load equipment 1-2 are numbered 9 and 10, the ring LED 4 of input power supply 2 is numbered 2, the ring LED 4 of input power supply 3 is numbered 3, the ring LED 4 of load equipment 3 is numbered 11, and the ring LED 4 of load equipment 4 is numbered 12.

[0048] The multi-digit LED display 5 of the input power supply 1, as described above, displays the number 1, and the multi-digit LED display 5 of the load devices 1-2 also displays the number 1.

[0049] The multi-digit LED display 5 of the input power supply 2 displays the number 2, the multi-digit LED display 5 of the input power supply 3 displays the number 3, and the multi-digit LED display 5 of the load device 3 displays the number 3.

[0050] The multi-digit LED display 5 of the load device 4 is not lit.

[0051] By observing the numbers displayed on the multi-digit LED display (5), staff can determine the connection relationship between the input power supply and the load equipment. If the multi-digit LED display (5) of the load equipment (4) is not lit, it indicates a connection problem.

[0052] Workers can identify which input power source or load device is malfunctioning by observing whether the ring LED 4 is lit. If the ring LED 4 of load device 3 is not lit, it indicates that load device 3 has a problem.

[0053] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An electrical equipment cabinet with source-load matching state indication function, comprising a cabinet body, a plurality of input power sources are arranged in the cabinet body, the input power sources are connected with load equipment through a switch module and a wiring unit, one input power source is connected with at least one load equipment, characterized in that, The cabinet includes a cabinet door (3), and a status display module is provided on the cabinet door (3). The status display module includes a power display unit and a load equipment display unit. The power display unit and the load equipment display unit both include multiple ring LED lights (4) and multiple multi-digit digital tubes (5). The cabinet door (3) has a ring-shaped light groove (6) corresponding to the multiple ring LED lights (4). A square mounting hole is opened in the middle of the light groove (6), and a multi-digit digital tube (5) is fixedly installed in the square mounting hole. The ring LED light (4) and the multi-digit LED tube (5) are connected to a control unit. The control unit includes an MCU chip (7), a first driving circuit (8), and a second driving circuit (9). The output terminal of the MCU chip (7) is connected to the first driving circuit (8) and the second driving circuit (9). The ring LED light (4) forms a loop through the first driving circuit (8), and the multi-digit LED tube (5) forms a loop through the second driving circuit (9). It also includes a detection unit (10), which includes a current sensor A, a voltage sensor A, a current sensor B and a voltage sensor B. The current sensor A and the voltage sensor A are connected between the input power supply and the switching module, and the current sensor B and the voltage sensor B are connected between the wiring unit and the load device. The output terminals of current sensor A, voltage sensor A, current sensor B and voltage sensor B are connected to the input terminal of MCU chip (7).

2. The electrical equipment cabinet having a source-load matching state indicating function according to claim 1, characterized in that, The number of the multiple ring LED lights (4) and the multiple digital tubes (5) is the sum of the multiple input power supplies and the multiple load devices; The first driving circuit (8) includes multiple transistor driving circuits. The number of transistor driving circuits is the same as the number of ring LEDs (4). The base of the transistor in the transistor driving circuit is connected to the output terminal of the MCU chip (7), the emitter is grounded, the collector is connected to the power supply and the positive terminal of the ring LED (4), and the negative terminal of the ring LED (4) is grounded. The second driving circuit (9) includes multiple MAX7219 chips. The multiple MAX7219 chips are cascaded with the SPI serial port of the MCU chip (7). The output terminal of the MAX7219 chip is connected to a multi-digit seven-segment display (5).

3. The electrical equipment cabinet having a source-load matching state indicating function according to claim 1, characterized in that, The output terminals of the current sensor A, voltage sensor A, current sensor B and voltage sensor B are connected to the input terminal of the MCU chip (7) via an analog-to-digital converter (11). There are multiple analog-to-digital converters (11), and the multiple analog-to-digital converters (11) are cascaded with the I2C serial port of the MCU chip (7).

4. The electrical equipment cabinet having a source-load matching state indicating function according to claim 3, characterized in that, Both current sensor A and current sensor B include LA25-P current sensors. The input terminal of the LA25-P current sensor is connected to the input power supply or load device, and the output terminal is connected to the input terminal of the analog-to-digital converter (11) via a filter capacitor.

5. The electrical equipment cabinet having a source-load matching state indicating function according to claim 3, characterized in that, The voltage sensor A and the voltage sensor B each comprise a DVC1000-P voltage sensor, the input end of which is connected to the input power supply or load device, and the output end of which is connected to the input end of the analog-to-digital converter (11) through a filtering capacitor.

6. The electrical equipment cabinet having a source-load matching state indicating function according to claim 1, characterized in that, The number of the control units is multiple, and the number of the corresponding MCU chips (7), the first driving circuits (8), the second driving circuits (9) and the detection units (10) is also multiple, and the number of the MCU chips (7), the first driving circuits (8), the second driving circuits (9) and the detection units (10) matches the number of the multiple annular LED lamps (4) and the multiple multi-digit Nixie tubes (5).

7. The electrical equipment cabinet having a source-load matching state indicating function according to claim 1, characterized in that, The multiple lamp slots (6) and mounting holes are divided into two columns according to the power display unit and the load device display unit, and the multiple lamp slots (6) and mounting holes in each column are longitudinally equidistantly arranged; The side close to the load device display unit is provided with corresponding numbers on the cabinet door (3) corresponding to the multiple lamp slots (6) located at the side.

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