Lumped module unit

Abstract

The application provides a kind of lumped module unit.The lumped module unit includes: master control module, multiple units, multiple power supply modules and bus.Master control module is connected with multiple units simultaneously through bus, and multiple units are connected through bus.Multiple power supply modules include main power supply board for powering master control module and multiple auxiliary power supply boards for powering multiple units respectively.The application controls all units by single master control module, reduces the number of controllers and reduces hardware cost.At the same time, multiple power supply modules power master control module and each unit separately, and any unit failure does not affect the overall operation, avoiding the need for each sub-machine to be equipped with a controller in the traditional master-slave architecture, achieving modular control at a lower cost, and significantly improving overall operating efficiency.

Description

Technical Field

[0001] This application relates to the field of modular unit control, and more particularly to lumped modular units. Background Technology

[0002] With the increasing demand for industrial refrigeration, modular chiller units are becoming increasingly popular. A modular chiller unit is a new type of refrigeration device composed of multiple modular chiller units connected in parallel. Multiple units can be connected and operated in varying numbers according to customer needs, and one or more units can be flexibly added, removed, or repaired. Modular chiller units generate cooling through water circulation. The advantage of modular chiller units lies in their ability to provide more stable cooling. Because the water circulation is continuous and removes heat, these units can maintain stable operation even under high heat loads. Furthermore, the water circulation can extend to distant terminals for cooling, making these units widely used in large commercial buildings and industrial plants.

[0003] However, traditional modular generator sets often employ master-slave control architectures or data center-based supervisory control architectures, which have numerous drawbacks and high costs. For example, master-slave control architectures cannot achieve optimized load response control between units, requiring each unit to be equipped with its own controller for independent control, resulting in high costs per unit; furthermore, communication protocols between controllers need to be developed, leading to high development costs and timelines. Data center-based supervisory control architectures can only perform on / off control of individual units, failing to achieve fine-grained load regulation and optimized control; each unit requires an independent controller, resulting in high hardware and R&D costs.

[0004] Therefore, it is necessary to provide an improved centralized modular unit to solve the above problems. Utility Model Content

[0005] This application provides a centralized modular unit with low hardware cost and high operating efficiency.

[0006] This application provides a centralized modular unit, including: a main control module, multiple units, multiple power supply modules and a bus. The main control module is simultaneously connected to the multiple units via the bus, and the multiple units are connected to each other via the bus. The multiple power supply modules include a main power supply board for supplying power to the main control module and multiple auxiliary power supply boards for supplying power to the multiple units respectively.

[0007] Furthermore, the multiple generator sets and the multiple power supply modules are respectively housed in multiple control cabinets, and each control cabinet is equipped with a connector connected to the bus. The multiple control cabinets are connected through the bus and the connector.

[0008] Furthermore, the main control module is arranged in parallel with the plurality of control cabinets, and the main control module is connected to one of the control cabinets via the bus and the connector; or the main control module is installed in one of the control cabinets and connected to the unit inside the control cabinet.

[0009] Furthermore, each of the aforementioned units includes an I / O module, a sensor module, and a compressor module, all of which are electrically connected to the auxiliary power board.

[0010] Furthermore, the bus includes an IPC3 bus and a Modbus bus, wherein the IPC3 bus connects the I / O modules and sensor modules of multiple units, and the Modbus bus connects the compressor modules of multiple units.

[0011] Furthermore, the main control module includes a main controller, a display connected to the main controller, and a main I / O module connected to the main controller. The main controller is connected to the main power board and the auxiliary power board via the IPC3 bus. The main controller is connected to multiple compressor modules via the Modbus bus. The display is used to display the operating information of multiple units.

[0012] Furthermore, the I / O module includes: an electronic expansion valve control module, an electric valve control module, and a high-pressure controller control module connected to the auxiliary power board via the IPC3 bus; the sensor module includes: a temperature sensor, a pressure sensor, and a liquid level sensor connected to the auxiliary power board via the IPC3 bus.

[0013] Furthermore, the power supply module includes a transformer connected to the auxiliary power supply board and a circuit breaker connected to the transformer; the power supply module also includes a backup power interface connected to the main power supply board, the backup power interface being used to connect to a backup power source when the unit where the main power supply board is located is powered off.

[0014] Furthermore, the main I / O module also includes a total water temperature sensor, a total water flow control module, and a status feedback module, all of which are connected to the main power board.

[0015] Furthermore, each of the control cabinets is connected to a grounding cable.

[0016] This application centrally controls all units through a single master control module, reducing the number of controllers and displays and lowering hardware costs. Simultaneously, multiple power supply modules provide independent power to the master control module and each unit, ensuring that a failure in any one unit does not affect overall operation. This fully realizes the effects of a traditional master-slave architecture and effectively improves operational efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the architecture of a centralized modular unit according to an exemplary embodiment of this application.

[0018] Figure 2 This is a connection diagram of the centralized modular unit of this application.

[0019] Figure 3 This is a schematic diagram showing the connection of multiple control cabinets in this application.

[0020] Figure 4 This is a schematic diagram showing the connection of the centralized modular unit within the main unit according to this application.

[0021] Explanation of icon numbers:

[0022] 100. Control cabinet; 101. Connector; 10. Main control module; 11. Main controller; 111. Main I / O module; 12. Display; 13. Total water temperature sensor; 14. Total water flow control module; 141. Total water flow module; 142. External start / stop module; 15. Status feedback module; 20. Unit; 21. I / O module; 211. Electronic expansion valve; 212. Electric valve control module; 2121. Electric valve; 2122. Flow switch; 213. High-pressure controller control module Block; 2131, High-pressure controller; 2132, Interlock switch; 22, Sensor module; 221, Temperature sensor; 222, Pressure sensor; 223, Liquid level sensor; 23, Compressor module; 231, Compressor drive module; 232, Compressor; 30, Power supply module; 301, Main power board; 302, Auxiliary power board; 303, Backup power interface; 31, Transformer; 32, Circuit breaker; 40, Bus; 41, IPC3 bus; 42, Modbus bus. Detailed Implementation

[0023] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0024] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0025] See Figures 1 to 2 As shown, this application provides a centralized modular unit comprising: a main control module 10, multiple units 20, multiple power supply modules 30, and a bus 40. The main control module 10 is simultaneously communicatively connected to multiple units 20 via the bus 40. The multiple units 20 are connected to each other via the bus 40. The multiple power supply modules 30 independently supply power to the main control module 10 and the multiple units 20.

[0026] The main control module 10 includes a main controller 11, a display 12, and a main I / O module 111. The display 12 is electrically connected to the main controller 11. Both the main controller 11 and the display 12 are connected to the bus 40 via signals. The display 12 is used to display the operating information of multiple units 20. The single interface of the display 12 displays the operating status of all units 20, simplifying operation and maintenance. The visualization of real-time data facilitates rapid fault diagnosis.

[0027] In some implementations, the display 12 can be connected to touch operation and integrate functions such as voice control. In addition, the main controller 11 can also be connected to a mobile terminal (such as a mobile phone App) to realize functions such as remote monitoring.

[0028] The main controller 11 is electrically connected to the power supply module 30 that supplies power to the main control module 10. The main I / O module 111 also includes a total water temperature sensor 13, a total water flow control module 14, and a status feedback module 15. The total water temperature sensor 13 monitors the total water temperature and transmits the data to the main controller 11, coordinating the water temperature of multiple units 20 to improve overall energy efficiency. The total water flow control module 14 includes a total water flow module 141 and an external start / stop module 142. The status feedback module 15 can upload the health status of the centralized modular units to the main controller 11 in real time, supporting dynamic adjustments.

[0029] According to the embodiments of this application, I / O modules are divided into chiller (system level) and subsystem level, and the main I / O module 111 connected to the main controller 11 is at the chiller level. In addition, the main I / O module 111 may also include other control modules or sensor modules. This application does not limit the number or type of main I / O modules 111.

[0030] See Figure 3 and Figure 4 As shown, multiple generator sets 20 and multiple power supply modules 30 are respectively housed in multiple control cabinets 100. Each control cabinet 100 is equipped with a connector 101 connected to a bus 40. The multiple control cabinets 100 are connected via the bus 40 and the connector 101. The connector 101 uses an industrial-grade interface, supporting plug-and-play functionality and synchronous transmission of bus signals. According to the embodiment of this application, the main control module 10 is installed in one of the control cabinets 100 and connected to the generator set 20 within the control cabinet 100, saving space and suitable for centralized management scenarios in computer rooms.

[0031] In some implementations, the main control module 10 is arranged in parallel with multiple control cabinets 100, and the main control module 10 is connected to one of the control cabinets 100 via a bus 40 and a connector 101.

[0032] The main control module 10 is an independent, movable module that can be placed individually or within any control cabinet 100. The independent control cabinet 100 design facilitates the distributed layout of the units 20 and adapts to complex installation environments. The connector 101 simplifies wiring connections, and when increasing the number of units 20, rapid assembly can be completed directly through the connector 101 and bus 40 without affecting the operation of other units 20.

[0033] According to the embodiments of this application, each control cabinet 100 is connected to a separate grounding cable for the bus (40, 41, 42) to independently ground each control cabinet 100, thereby reducing electromagnetic interference and improving signal stability. Furthermore, a grounding resistance monitoring module is added, which triggers an audible and visual alarm and uploads the data to the main controller 11 in case of an abnormality to further enhance safety.

[0034] In some implementations, basic operation can be achieved by setting up only one unit 20 and a main control module 10. Furthermore, the number of units 20 can be determined based on the carrying capacity of the main control module 10.

[0035] According to the embodiments of this application, the complete machine includes the control cabinet 100 described above, and the complete machines are connected to each other through connectors 101 and bus 40 between multiple control cabinets 100.

[0036] Each unit 20 includes an I / O module 21, a sensor module 22, and a compressor module 23. The I / O module 21, sensor module 22, and compressor module 23 are all electrically connected to the power supply module 30 that supplies power to the unit 20. The I / O module 21 includes an electronic expansion valve 211, an electric valve control module 212, and a high-pressure controller control module 213. The electronic expansion valve 211, electric valve control module 212, and high-pressure controller control module 213 are all electrically connected to the power supply module 30 that supplies power to the unit 20 via a bus 40. The electric valve control module 212 includes an electric valve 2121 that controls the water flow rate and a flow switch 2122 that controls the opening and closing of the water flow. The high-pressure controller control module 213 includes a high-pressure controller 2131 and an interlock switch 2132.

[0037] Sensor module 22 includes: a temperature sensor 221 for measuring real-time temperature within the lumped modular unit, a pressure sensor 222 for measuring real-time pressure within the lumped modular unit, and a level sensor 223 for measuring real-time liquid level within the lumped modular unit. Temperature sensor 221, pressure sensor 222, and level sensor 223 are all electrically connected to the power supply module 30 that supplies power to unit 20. Temperature data, pressure data, and liquid level data are transmitted to the main controller 11 via bus 40. The multiple types of sensors work together to achieve full parameter optimization of unit 20.

[0038] Each compressor module 23 includes a compressor drive module 231 and a compressor 232. The compressor drive module 231 is electrically connected to the compressor 232. Multiple compressor drive modules 231 of multiple units 20 are communicatively connected via a bus 40.

[0039] According to the embodiments of this application, the I / O module 21 is at the slave level. The I / O module 21 and the sensor module 22 may also include other control modules or sensor modules. This application does not limit the number or type of the I / O module 21 and the sensor module 22.

[0040] The multiple power supply modules 30 include a main power supply board 301, multiple auxiliary power supply boards 302, and a backup power interface 303. The main power supply board 301 supplies power to the main control module 10. The multiple auxiliary power supply boards 302 supply power to multiple units 20 respectively. The backup power interface 303 is electrically connected to the main power supply board 301. The backup power interface 303 is used to connect to a backup power source when the unit 20 where the main power supply board 301 is located loses power. The backup power source can be the power interface of the auxiliary power supply board 302 in other units 20 or other power sources provided by the user. This ensures that the main control module 10 is powered when the main power supply board 301 fails or when the unit 20 where the main control module 10 is installed is shut down for maintenance, thus ensuring continuous system operation. The power supplies for each module are separate to avoid system shutdown due to a single power supply failure of the main control module 10.

[0041] The power supply module 30 also includes a transformer 31 and a circuit breaker 32. The transformer 31 is electrically connected to the auxiliary power supply board 302, and the circuit breaker 32 is connected to the transformer 31. The circuit breaker 32 prevents short circuits or abnormal currents, improving safety. When the main control module 10 is placed inside a control cabinet 100, the main power supply board 301 of the main control module 10 is also electrically connected to the transformer 31 and the circuit breaker 32.

[0042] Bus 40 includes an IPC3 bus 41 and a Modbus bus 42. The IPC3 bus 41 connects the I / O modules 21 and sensor modules 22 of multiple units 20. The Modbus bus 42 connects the compressor modules 23 of multiple units 20. The IPC3 bus 41 can process real-time control signals, while the Modbus bus 42 is used to manage the operation of the compressor modules 23, optimizing communication efficiency. The design of both buses is compatible with existing industrial equipment, reducing upgrade costs. Compared to the traditional two-year development cycle of inter-controller communication protocols, this application uses a standardized bus 40 (IPC3 bus 41 / Modbus bus 42), shortening the development cycle to six months.

[0043] Electronic expansion valve 211, electric valve 2121, flow switch 2122, high-pressure controller 2131, interlock switch 2132, temperature sensor 221, pressure sensor 222, and level sensor 223 are connected to auxiliary power board 302 via IPC3 bus 41. Main controller 11 is connected to main power board 301 and auxiliary power board 302 via IPC3 bus 41, and main controller 11 is connected to multiple compressor modules 23 via Modbus bus 42. Total water temperature sensor 13, total water flow control module 14, and status feedback module 15 are all connected to main power board 301.

[0044] This application centrally controls all units 20 through a single master control module 10, reducing the number of controllers and lowering hardware costs. Simultaneously, multiple power supply modules 30 provide independent power to the master control module 10 and each unit 20, ensuring that a failure in any unit 20 does not affect overall operation. This fully realizes the effects of a traditional master-slave architecture and effectively improves operational efficiency.

[0045] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A centralized modular unit, characterized in that, include: The system includes a main control module, multiple generator sets, multiple power supply modules, and a bus. The main control module communicates with the multiple generator sets simultaneously via the bus, and the multiple generator sets are connected to each other via the bus. The multiple power supply modules include a main power supply board for supplying power to the main control module and multiple auxiliary power supply boards for supplying power to the multiple generator sets respectively.

2. The lumped modular unit according to claim 1, characterized in that, The multiple generator sets and the multiple power supply modules are respectively housed in multiple control cabinets. Each control cabinet is equipped with a connector that connects to the bus. The multiple control cabinets are connected through the bus and the connector.

3. The lumped modular unit according to claim 2, characterized in that, The main control module is arranged in parallel with the plurality of control cabinets, and the main control module is connected to one of the control cabinets via the bus and the connector; or the main control module is installed in one of the control cabinets and connected to the unit inside the control cabinet.

4. The lumped modular unit according to claim 1, characterized in that, Each of the units includes an I / O module, a sensor module, and a compressor module, all of which are electrically connected to the auxiliary power board.

5. The lumped modular unit according to claim 4, characterized in that, The bus includes an IPC3 bus and a Modbus bus. The IPC3 bus connects the I / O modules and sensor modules of multiple units, and the Modbus bus connects the compressor modules of multiple units.

6. The lumped modular unit according to claim 5, characterized in that, The main control module includes a main controller, a display connected to the main controller, and a main I / O module connected to the main controller. The main controller is connected to the main power board and the auxiliary power board via the IPC3 bus. The main controller is connected to multiple compressor modules via the Modbus bus. The display is used to display the operating information of multiple units.

7. The lumped modular unit according to claim 5, characterized in that, The I / O module includes: an electronic expansion valve control module, an electric valve control module, and a high-pressure controller control module connected to the auxiliary power board via the IPC3 bus; the sensor module includes: a temperature sensor, a pressure sensor, and a liquid level sensor connected to the auxiliary power board via the IPC3 bus.

8. The lumped modular unit according to claim 1, characterized in that, The power supply module includes a transformer connected to the auxiliary power board and a circuit breaker connected to the transformer; the power supply module also includes a backup power interface connected to the main power board, the backup power interface being used to connect to a backup power source when the unit where the main power board is located is powered off.

9. The lumped modular unit according to claim 6, characterized in that, The main I / O module also includes a total water temperature sensor, a total water flow control module, and a status feedback module, all of which are connected to the main power board.

10. The lumped modular unit according to claim 2, characterized in that, Each of the control cabinets is connected to a grounding cable.

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