A test device, test method and heat dissipation system for an LCU control system

Abstract

The present invention relates to the technical field of detection equipment, and in particular to a test device, a test method and a heat dissipation system for an LCU control system. The present invention collects the working status of a system to be tested through an acquisition module, and a controller generates a working signal that is most suitable for the system to be tested at this time according to the working status of the system to be tested. After the system to be tested executes a corresponding working mode according to the working signal, the execution result is uploaded back to the controller. The controller analyzes the execution result and makes a logical judgment to obtain a test result of the system to be tested, and judges whether the system to be tested is in a normal working state according to the corresponding test result. The present invention can be tested according to different test requirements of different types of systems to be tested, and has wide applicability. The test management software of the controller can be independently compiled, and by changing parameters, it can be applied to the testing work of different types of LCU control systems, with fast data processing speed, accurate test results and high test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a testing device, a testing method and a heat dissipation system for an LCU control system. Background Art

[0002] Control systems play a key role in industrial automation, responsible for the operation and protection of electrical equipment. They involve circuit control, protection, monitoring, and other functions. Their stability and reliability are crucial to the safe operation of the entire system. In the production of automated control equipment, the inspection and commissioning of each control system is the lifeblood of product quality and an essential and critical step.

[0003] Current testing of local control unit (LCU) control systems relies heavily on manual testing, resulting in a low level of automation and often inefficient production. Operators typically use multimeters to perform point-by-point wiring checks, requiring the movement of numerous cables and components during power-on testing. This burdensome and cumbersome task hinders efficiency and makes testing prone to errors and omissions.

[0004] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in this technical field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to automatically test a control system to improve the testing efficiency.

[0006] The present invention adopts the following technical solutions:

[0007] In a first aspect, a test device for an LCU control system is provided, comprising: a controller 1', an interface module 2', and an acquisition module 3', wherein the controller 1' is connected to the interface module 2', the interface module 2' is connected to a control module in a system to be tested, and the acquisition module 3' is connected to the controller 1' and sensors on the system to be tested, respectively;

[0008] The acquisition module 3' is used to acquire the working status of the system to be tested according to corresponding sensors to obtain acquisition information, and upload the acquisition information to the controller 1';

[0009] The controller 1' is used to generate a working signal according to the collected information, and transmit the working signal to the system under test through the interface module 2', and the system under test is used to execute a corresponding working mode according to the working signal;

[0010] After the system under test executes the corresponding working mode, the execution result is uploaded to the controller 1 ' through the interface module 2 '. The controller 1 ' is used to determine whether the system under test is working normally according to the execution result.

[0011] In a second aspect, a method for testing an LCU control system is provided. The method is applicable to the testing device for the LCU control system according to the first aspect, comprising:

[0012] The acquisition module 3' acquires the working status of the system to be tested according to corresponding sensors to obtain acquisition information, and uploads the acquisition information to the controller 1';

[0013] The controller 1' generates a working signal according to the collected information, and transmits the working signal to the system under test through the interface module 2'. The system under test is configured to execute a corresponding working mode according to the working signal.

[0014] After the system under test executes the corresponding working mode, the execution result is uploaded to the controller 1 ′ through the interface module 2 ′. The controller 1 ′ determines whether the system under test is working normally according to the execution result.

[0015] In a third aspect, a heat dissipation system is provided. The test device for the LCU control system as described in the first aspect is used to test the heat dissipation system. The heat dissipation system includes: a cooling module 1, an emergency module 2, a control module 3, and multiple sensors arranged on a pipeline. The emergency module 2 includes an energy storage unit 20 and an emergency water pump 21. The control module 3 is connected to the interface module 2', and the sensor is connected to the acquisition module 3'.

[0016] The output end of the cooling module 1 is connected to the input end of the energy storage unit 20, the output end of the energy storage unit 20 is connected to one end of the pipeline flowing through the load, and the other end of the pipeline flowing through the load is connected to the input end of the cooling module 1; one end of the emergency water pump 21 is connected to the input end of the energy storage unit 20, and the other end of the emergency water pump 21 is connected to the other end of the pipeline flowing through the load;

[0017] The control module 3 is used to control the cooling module 1 and the emergency module 2 to execute corresponding working modes according to the working signal;

[0018] The cooling module 1 is used to cool the coolant flowing through the load;

[0019] When the cooling module 1 fails, the input and output ends of the cooling module 1 are closed, the emergency water pump 21 is turned on, and the coolant flowing through the load is circulated and cooled through the emergency water pump 21 and the energy storage unit 20 .

[0020] Preferably, the energy storage unit 20 includes a heat exchange cold plate 200, a heat transfer fin 201, a plurality of energy storage materials 202 and a cover plate 203; the energy storage materials 202 are sequentially arranged on both sides of the heat exchange cold plate 200; the heat transfer fin 201 is arranged on the heat exchange cold plate 200 and is located between every two energy storage materials 202; the cover plate 203 covers the energy storage materials 202;

[0021] The input end of the heat exchange cold plate 200 is connected to the output end of the cooling module 1, and the output end of the heat exchange cold plate 200 is connected to one end of a pipeline flowing through the load; the heat exchange cold plate 200 and the heat transfer fins 201 are used to transfer heat in the coolant to the energy storage material 202;

[0022] When the load thermal power consumption is lower than or equal to a preset threshold, the energy storage unit 20 is used to store excess cold in the coolant; when the load thermal power consumption is greater than the preset threshold, the energy storage unit 20 is used to absorb heat in the coolant.

[0023] Preferably, a temperature sensor 204 is provided on each energy storage material 202, and the temperature sensor 204 is used to monitor the temperature of the corresponding energy storage material 202;

[0024] The control module 3 is configured to receive the temperature of the energy storage material 202 monitored by the temperature sensor 204, and adjust the working state of the cooling module 1 or the flow rate of the coolant if it is detected that the temperature of the energy storage material 202 continues to decrease and the difference between the temperature of the energy storage material 202 and the temperature of the coolant is less than a preset threshold;

[0025] If it is monitored that the temperature of the energy storage material 202 continues to rise, the control module 3 is used to evaluate the time that the emergency heat dissipation can be maintained according to the temperature monitored by the temperature sensor 204 and take emergency measures.

[0026] Preferably, the cooling module 1 includes a circulation unit 10, and the circulation unit 10 includes at least one circulation water pump 100 and at least one circulation ball valve 101;

[0027] The circulating ball valve 101 is arranged between the output end of the circulating water pump 100 and the input end of the energy storage unit 20, and the input end of the circulating water pump 100 is connected to the other end of the pipeline flowing through the load; by opening the circulating ball valve 101 and the corresponding circulating water pump 100, the coolant circulates in the pipeline.

[0028] Preferably, the cooling module 1 further includes an external water cooling unit 11, and the external water cooling unit 11 includes a plate heat exchanger 110 and an external water pump 111; the external water pump 111 is arranged in a liquid supply tank, and the output end of the external water pump 111 is connected to the input end of the plate heat exchanger 110, and the output end of the plate heat exchanger 110 is connected to the liquid supply tank;

[0029] The pipeline between the other end of the pipeline flowing through the load and the circulating water pump 100 flows through the plate heat exchanger 110 , so that the coolant flowing through the load is cooled by the plate heat exchanger 110 .

[0030] Preferably, the external water cooling unit 11 further includes a tubular heat exchanger 112, the output end of the external water pump 111 is connected to the input end of the tubular heat exchanger 112, and the output end of the tubular heat exchanger 112 is connected to the input end of the plate heat exchanger 110;

[0031] The cooling module 1 further includes a refrigeration unit 12, which includes an evaporator 120 and a condenser 121; the liquid outlet of the evaporator 120 is connected to the input end of the condenser 121, and the pipeline of the output end of the condenser 121 flows through the tubular heat exchanger 112 and is connected to the liquid inlet end of the evaporator 120;

[0032] The pipeline between the other end of the pipeline flowing through the load and the circulating water pump 100 also flows through the evaporator 120;

[0033] The evaporator 120 is provided with a liquid refrigerant. When the cooling liquid from the load flows through the evaporator 120, the liquid refrigerant in the evaporator 120 absorbs the heat of the cooling liquid and becomes a gaseous refrigerant. The condenser 121 is used to liquefy the gaseous refrigerant and cool the liquefied refrigerant through the tubular heat exchanger 112. The liquefied and cooled liquid refrigerant returns to the evaporator 120 for circulation.

[0034] Preferably, the refrigeration unit 12 further includes an air cooler 122, the input end of the air cooler 122 is connected to the output end of the condenser 121, and the output end of the air cooler 122 is connected to the liquid inlet end of the evaporator 120;

[0035] When it is monitored that the temperature of the refrigerant flowing back to the evaporator 120 is greater than or equal to a threshold temperature, the liquefied refrigerant is cooled by the air cooler 122 , and the cooled refrigerant flows back to the evaporator 120 .

[0036] Preferably, the cooling module 1 further comprises a three-way valve 13, wherein a first port of the three-way valve 13 is connected to the other end of the pipeline flowing through the load, a second port of the three-way valve 13 is connected to the input end of the circulating water pump 100, and a third port of the three-way valve 13 is connected to the pipeline flowing through the evaporator 120;

[0037] When the temperature of the coolant flowing through the load is lower than a preset temperature, the first port and the second port of the three-way valve 13 are opened to cool the coolant through the external water cooling unit 11;

[0038] When the temperature of the coolant flowing through the load is higher than or equal to the preset temperature, the second port of the three-way valve 13 is closed, and the first port and the third port of the three-way valve 13 are opened to cool the coolant through the refrigeration unit 12 .

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The present invention collects the working status of the system to be tested through the acquisition module 3', and the controller 1' generates the working signal that is most suitable for the system to be tested at this time according to the working status of the system to be tested. After the system to be tested executes the corresponding working mode according to the working signal, the execution result is uploaded back to the controller 1'. The controller 1' analyzes the execution result and makes logical judgments to obtain the test result of the system to be tested, and judges whether the system to be tested is in a normal working state according to the corresponding test result. The present invention can be tested according to different test requirements of different types of systems to be tested, and has a wide applicability. The test management software of the controller 1' can be independently compiled, and by changing the parameters, it can be applied to the testing work of different types of LCU control systems, with fast data processing speed, accurate test results and high test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a schematic structural diagram of a test platform provided by an embodiment of the present invention;

[0043] Figure 2 is another structural schematic diagram of a test platform provided by an embodiment of the present invention;

[0044] Figure 3 This is a schematic structural diagram of a support rod provided by an embodiment of the present invention;

[0045] Figure 4 1 is a schematic structural diagram of a test device for an LCU control system provided by an embodiment of the present invention;

[0046] Figure 5 This is a schematic structural diagram of a test board provided by an embodiment of the present invention;

[0047] Figure 6 1 is a flow chart of a method for testing an LCU control system provided by an embodiment of the present invention;

[0048] Figure 7 This is a schematic structural diagram of a heat dissipation system provided by an embodiment of the present invention;

[0049] Figure 8 This is a schematic structural diagram of an energy storage unit provided by an embodiment of the present invention;

[0050] Figure 9 This is a schematic structural diagram of a circulation unit provided by an embodiment of the present invention;

[0051] Figure 10 is a schematic diagram of the specific structure of a heat dissipation system provided by an embodiment of the present invention;

[0052] Figure 11 is a more specific structural diagram of a heat dissipation system provided by an embodiment of the present invention;

[0053] Figure 12 This is a test flow chart of a test device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0055] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as meaning open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that the specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, it is not limited to that they can be carried in combination by one embodiment or example.

[0056] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "multiple" means two or more. In addition, for example, the description may also use the method of adding "A" and "B" at the end to describe the same type of nouns as two independent individuals. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the description purposes of the same type of individuals, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0057] When describing some embodiments, the expressions “coupled”, “coupled” and “connected” and their derivatives may be used. For example, when describing some embodiments, the term “connected” may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term “coupled” may be used to indicate that two or more components are in direct physical or electrical contact. However, the term “connected” or “coupled” may also mean that two or more components are not in direct contact with each other, but still cooperate or interact with each other, such as “optical coupling”, “wireless connection”, etc. The embodiments disclosed herein are not necessarily limited to the contents of the present invention.

[0058] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0059] Example 1:

[0060] Before describing the structure of the test device for an LCU control system proposed by the present invention, a test platform is first introduced. The test platform is used to place the test device for the LCU control system, such as Figure 1 and Figure 2 As shown, the test platform includes a monitoring screen panel 4, a workbench 5, a front door 6, wheels 7, a rear door 8 and a support rod 9. The test device is placed inside the test platform and connected to the monitoring screen panel 4. The monitoring screen panel 4 can be opened or locked. There is a support rod 9 at the connection between the monitoring screen panel 4 and the platform body, and the support rod 9 is used to control the lifting of the monitoring screen panel 4. The front and back of the test platform are equipped with cabinet doors, and the front door 6 and the rear door 8 can be opened or locked. The bottom of the test platform is equipped with 4 wheels, which can move freely in the horizontal direction and have a locking function.

[0061] In one embodiment, Figure 3 As shown, the support rod 9 includes a fixing bolt 90, a joint 91, a piston rod 92, a piston 93, and a pressure tube 94. The support rod 9 is a free-type gas spring, one end of which is fixed to the monitoring screen panel 4 and the other end is fixed to the side wall of the test platform, respectively fixed by the fixing bolt 90 and the joint 91. The piston rod 92 is slidably set in the piston 93, and the piston 93 is connected to the pressure tube 94. The length of the piston rod 92 is not greater than the length of the pressure tube 94, and the stroke of the piston rod 92 is not greater than 1 / 3 of the support rod 9.

[0062] In one embodiment, the monitoring screen panel 4 can be opened or locked by a key, making it easier for personnel to maintain the test device. In one embodiment, the height of the workbench 5 of the test platform is no more than 2 / 3 of the total height of the test platform, and the width is no more than 3 / 5 of the total width of the test platform, making it easier for test personnel to operate. The bottom of the test platform is equipped with four wheels 7, which can rotate freely to facilitate the movement of the test platform in all directions. A brake mechanism is attached, which can be stepped on to lock the wheels 7, making the test platform stable and immobile. When movement is required, the mechanism can be hooked upwards to release the wheels 7.

[0063] This embodiment provides a carrier for the test device of the LCU control system proposed in the present invention, which facilitates the installation and movement of the test device.

[0064] Example 2:

[0065] In order to solve the problem that the test efficiency of the LCU control system in the prior art is low and the test results are greatly affected by uncertain factors, this embodiment provides a test device for the LCU control system. Figure 4As shown, it includes: a controller 1', an interface module 2' and an acquisition module 3', the controller 1' is connected to the interface module 2', the interface module 2' is connected to the control module in the system to be tested, and the acquisition module 3' is respectively connected to the controller 1' and the sensors on the system to be tested; the acquisition module 3' is used to collect the working status of the system to be tested according to the corresponding sensors to obtain collected information, and upload the collected information to the controller 1'; the controller 1' is used to generate a working signal according to the collected information, and transmit the working signal to the system to be tested through the interface module 2', and the system to be tested is used to execute a corresponding working mode according to the working signal; after the system to be tested executes the corresponding working mode, the execution result is uploaded to the controller 1' through the interface module 2', and the controller 1' is used to determine whether the system to be tested is working normally according to the execution result.

[0066] The controller 1' is the core control unit of the entire testing device, responsible for coordinating and managing the entire testing process. It receives collected information from the acquisition module 3' and generates corresponding operating signals based on this information, sending them to the interface module 2'. Simultaneously, the controller 1' receives execution results from the system under test (SUT) via the interface module 2' to determine whether the system is functioning properly.

[0067] In one embodiment, the controller 1' is a microcontroller 1' or an industrial control computer with data processing capabilities and logic judgment functions, which runs a specific test program and can process and analyze input and output information according to predetermined rules.

[0068] In one embodiment, the controller 1' can be a programmable logic controller (PLC), including a central processing unit (CPU), an IO (In / Out) module, and a communication module. The test management software uses the PLC as the control core, reads the analog or digital quantity of the system under test, and transmits it to the host computer. At the same time, the host computer sends a command to the controller 1', and the PLC outputs an analog or digital signal to the system under test to test the control loop operation of the system under test. After the test is completed, the test results are saved to the database, and the corresponding test results can also be printed out through the report subsystem.

[0069] The interface module 2' acts as a bridge, connecting one end to the controller 1' and the other end to the control module in the system under test. Its primary function is to accurately transmit the operating signals generated by the controller 1' to the system under test, enabling the system to execute the corresponding operating mode based on the received operating signals. It is also responsible for transmitting the execution results of the system under test's operating mode back to the controller 1'.

[0070] In one embodiment, the interface module 2' includes various types of communication interfaces, such as serial ports and Ethernet ports, to adapt to the interface requirements of different systems under test and ensure smooth data transmission between the two. In one embodiment, the interface module 2' is a plug-in terminal block for achieving circuit connection between the test device and the system under test.

[0071] The acquisition module 3' is primarily responsible for collecting data on the operating status of the system under test. It establishes connections with sensors on the system under test and can comprehensively collect the real-time operating status of the system under test based on the physical quantities monitored by different sensors (such as temperature, pressure, current, voltage, etc.), thereby obtaining collected information. This collected information is then uploaded to the controller 1', providing a basis for the controller 1' to generate operating signals.

[0072] The system to be tested may be a heat dissipation system, a motor control system, or other systems. In one embodiment, if the system to be tested is a motor control system, the acquisition module 3' may be connected to a temperature sensor, a current sensor, etc. on the motor to collect information such as the temperature and current values ​​of the motor during operation, and transmit this information to the controller 1' in a timely manner.

[0073] In one embodiment, Figure 5 As shown, the test device provided in this embodiment is installed on the mounting plate inside the test platform of Example 1. The layout is divided into five layers, with wire troughs installed in the middle of each layer and on the left and right sides of the mounting plate. The first layer houses the PLC controller. The PLC serves as the control and operation center of the entire test platform, responsible for logical control and operation of the entire circuit, completing test data collection, receiving host computer commands via Ethernet communication, and transmitting test results to the host computer.

[0074] The second layer houses the DC regulated power supply, circuit breakers, and fuses for each power supply circuit. The DC regulated power supply provides the required 24V DC power to each PLC module and lower-level modules. The circuit breakers primarily include the test platform's main circuit switch, switches for each test circuit, and switches for the PLC and DC regulated power supply. Each switch controls each circuit's on / off function and provides overload and short-circuit protection. Fuses provide short-circuit protection for the 24V output circuit.

[0075] The third layer is installed with relays for controlling the on and off of the circuit; the fourth layer is used to connect with the sensors in the system under test to complete the signal acquisition of the system under test; the fifth layer is installed with test plugs and terminal blocks for signal transmission between the test platform and the system under test.

[0076] The host computer of the test platform provided in this embodiment includes a touch-screen tablet computer and self-developed test software. The touch-screen tablet computer is connected to the PLC of the system to be tested via Ethernet, and is used to complete the start and stop command issuance of the test, the display of the test status and parameters, and the recording of test data. In one embodiment, the operating system of the self-developed test software is Windows 10, the programming language is C#, and the database uses Mysql. The self-developed test software adopts modular programming, including a function detection system, a database management subsystem, a report subsystem, and a help subsystem.

[0077] The functional detection system is mainly used to collect equipment parameters and mechanism action information of the test platform and the system under test, and provide a human-computer dialogue interface for operators and managers. Operators can control and monitor the operation of the system under test. The functional detection system includes a data acquisition module, a data issuance module, a user management module, a real-time monitoring module and an alarm module.

[0078] The database management subsystem classifies, summarizes, counts and calculates the collected data information and automatically forms a database. The database management subsystem includes a data processing module, a data storage module and a data query module; the report subsystem performs feedback on the calculation results of the database, generates reports, and prints them out. The report subsystem includes a data report module, a curve report module and a comprehensive report module; the help subsystem provides help information for operators to solve problems in the test project, including a database management help module, a software operation guide module and a troubleshooting help module.

[0079] Based on the combination of the above-mentioned software and hardware, various tests can be performed on the system to be tested and the corresponding test results can be output. Tests can be performed according to different test requirements of different types of systems to be tested, and the applicability is wide. The test management software of the controller 1' can be independently compiled, and by changing the parameters, it can be applied to the testing of different types of LCU control systems. The data processing speed is fast, the test results are accurate and the test efficiency is high.

[0080] Example 3:

[0081] To further illustrate the test device, in one embodiment, a test method for an LCU control system is proposed. Figure 6 Shown, including:

[0082] Step 101: the acquisition module 3 ′ acquires the working status of the system to be tested using corresponding sensors to obtain acquisition information, and uploads the acquisition information to the controller 1 ′.

[0083] During the operation of the system under test, the acquisition module 3' monitors and collects data about the system's operating status in real time using the various sensors connected to it. Different sensors monitor different physical quantities and transmit the data they obtain to the acquisition module 3'. The acquisition module 3' then integrates and organizes the scattered data from these different sensors to form a complete collection of information. The acquisition module 3' then uploads this collected information to the controller 1' via the connection between the acquisition module 3' and the controller 1'.

[0084] Step 102: the controller 1 ′ generates a working signal according to the collected information, and transmits the working signal to the system under test through the interface module 2 ′. The system under test is configured to execute a corresponding working mode according to the working signal.

[0085] After receiving the collected information uploaded by the acquisition module 3', the controller 1' analyzes and processes the collected information according to pre-defined algorithms and logical rules to obtain analysis results. Based on the analysis results, the controller 1' generates corresponding operating signals. The operating signals are generated to enable the system under test to execute a specific operating mode. The controller 1' transmits the generated operating signals to the control module in the system under test through the interface module 2'.

[0086] After receiving the operating signal transmitted via the interface module 2', the control module in the system under test drives the various components of the system under test to execute the corresponding operating mode according to the operating signal's instructions. For example, if the operating signal instructs the motor to accelerate, the motor control system will adjust the motor's supply voltage, current, and other parameters to accelerate the motor as required.

[0087] Step 103: After the system under test executes the corresponding working mode, the interface module 2' uploads the execution result to the controller 1'. The controller 1' determines whether the system under test is working normally according to the execution result.

[0088] After the system under test completes its corresponding operating mode, it generates execution results related to the execution. These results are uploaded back to the controller 1' via the interface module 2'. The controller 1' then analyzes and judges these results based on pre-set criteria and algorithms. If the results meet the expected standards for normal operation, the controller 1' will determine that the system under test is operating normally. Conversely, if the results are abnormal, such as values ​​outside the normal range or illogical conditions, the controller 1' will determine that the system under test is not operating properly and may issue an alarm or provide a specific error message.

[0089] Through the above complete test device and its workflow, the LCU control system (i.e. the system under test) can be tested comprehensively and accurately, and possible problems of the system under test can be discovered in time to ensure its reliability and stability in actual applications.

[0090] Example 4:

[0091] Based on the test device of an LCU control system proposed in Example 2, a system to be tested is proposed in this embodiment, such as Figure 7 As shown, in this embodiment, a heat dissipation system is proposed as a system to be tested. The heat dissipation system includes: a cooling module 1, an emergency module 2, a control module 3, and multiple sensors arranged on a pipeline. The emergency module 2 includes an energy storage unit 20 and an emergency water pump 21; the control module 3 is connected to the interface module 2', and the sensor is connected to the acquisition module 3'; the output end of the cooling module 1 is connected to the input end of the energy storage unit 20, the output end of the energy storage unit 20 is connected to one end of a pipeline flowing through a load, and the other end of the pipeline flowing through the load is connected to the input end of the cooling module 1; One end of the emergency water pump 21 is connected to the input end of the energy storage unit 20, and the other end of the emergency water pump 21 is connected to the other end of the pipeline flowing through the load; the control module 3 is used to control the cooling module 1 and the emergency module 2 to execute the corresponding working mode according to the working signal; the cooling module 1 is used to cool the coolant flowing through the load; when the cooling module 1 fails, the input and output ends of the cooling module 1 are closed, the emergency water pump 21 is turned on, and the coolant flowing through the load is circulated and cooled through the emergency water pump 21 and the energy storage unit 20.

[0092] With the widespread use of domestically produced chips, instantaneous excessive power consumption often occurs. Failure of existing heat dissipation systems can seriously affect the heat dissipation of related equipment and can easily cause damage to related equipment. Therefore, this embodiment proposes a heat dissipation system. When the heat dissipation system is operating normally, the cooling module 1 continuously cools the coolant that has absorbed heat from the load, restoring it to a suitable low temperature before returning it to the load for the next round of heat absorption. During this process, the energy storage unit 20 in the emergency module 2 fully utilizes its own heat storage characteristics when the coolant temperature is relatively low (for example, when it has just been cooled by the cooling module 1) to absorb and store excess cold energy. If the cooling module 1 fails and cannot normally cool the coolant, the input and output ends of the cooling module 1 are closed (by providing ball valves A and B at the input and output ends of the cooling module 1, respectively), and then the emergency water pump 21 is opened. Correspondingly, a ball valve C is provided at the front end of the emergency water pump 21 to control the flow of the loop in which the emergency water pump 21 is located. The emergency water pump 21 drives the coolant to circulate through a closed loop formed by the energy storage unit 20 and the pipes flowing through the load. Because the energy storage unit 20 already stores a certain amount of cold energy, this cold energy is released as the coolant circulates through the unit, thereby cooling the coolant. This ensures that the load can still be effectively cooled in an emergency, maintaining normal operation and avoiding equipment damage caused by insufficient heat dissipation.

[0093] In one embodiment, the energy storage unit 20 performs multiple functions in the heat dissipation device: absorbing cold energy during low-power loads, releasing cold energy during high-power loads, and cooperating with the emergency water pump 21 for emergency heat dissipation after a failure of the cooling module 1. The release of cold energy during high-power loads and the cooperation with the emergency water pump 21 for emergency heat dissipation after a failure of the cooling module 1 can be performed simultaneously or separately. Specifically, the release of cold energy during high-power loads and the cooperation with the emergency water pump 21 for emergency heat dissipation after a failure of the cooling module 1 can be performed in conjunction with the emergency water pump 21 for emergency heat dissipation, or the release of cold energy during normal operation of the cooling module 1 can alleviate the operating pressure of the cooling module 1 and reduce energy consumption. For detailed descriptions, see the following embodiments.

[0094] In order to absorb the coldness in the coolant in advance and release the coldness when the system needs it, in one embodiment, the specific structure of the energy storage unit 20 is described below. Figure 7 and Figure 8As shown, the energy storage unit 20 includes a heat exchange cold plate 200, a heat transfer fin 201, a plurality of energy storage materials 202 and a cover plate 203; the energy storage materials 202 are sequentially arranged on both sides of the heat exchange cold plate 200; the heat transfer fin 201 is arranged on the heat exchange cold plate 200 and is located between every two energy storage materials 202; the cover plate 203 covers the energy storage material 202; the input end of the heat exchange cold plate 200 is connected to the output end of the cooling module 1, and the output end of the heat exchange cold plate 200 is connected to one end of the pipeline flowing through the load; the heat exchange cold plate 200 and the heat transfer fin 201 are used to transfer heat in the coolant to the energy storage material 202; when the load heat power consumption is lower than or equal to the preset threshold, the energy storage unit 20 is used to store excess cold in the coolant; when the load heat power consumption is greater than the preset threshold, the energy storage unit 20 is used to absorb heat in the coolant.

[0095] First, from a structural perspective, the heat exchange plate 200, a key component for heat transfer, has its input connected to the output of the cooling module 1, allowing the coolant output from the cooling module 1 to flow into the heat exchange plate 200. As the coolant flows through the heat exchange plate 200, due to the excellent thermal conductivity of the heat exchange plate 200, the heat in the coolant begins to transfer to the heat exchange plate 200. The heat transfer fins 201 provided on the heat exchange plate 200 further enhance the heat transfer effect. The presence of the heat transfer fins 201 increases the heat exchange area, allowing the heat in the heat exchange plate 200 to be transferred to the energy storage material 202 more quickly and fully.

[0096] The energy storage material 202 has specific thermophysical properties and can absorb and store cold energy. The cover plate 203 covering the energy storage material 202 provides protection, preventing external factors from interfering with the energy storage material 202 and ensuring that it can stably perform its heat storage function. In one embodiment, the energy storage material 202 can be water or eutectic salt. The operating mode of the energy storage unit 20 varies under different load thermal power consumption conditions. When the load thermal power consumption is lower than or equal to the preset threshold, it means that the heat generated by the load is relatively small. The temperature of the coolant after cooling by the cooling module 1 may be too low, resulting in excess cold energy. At this time, the energy storage unit 20 will perform its cold energy storage function and transfer the excess cold energy in the coolant to the energy storage material 202 for storage through components such as the heat exchange cold plate 200 and the heat transfer fins 201. This allows the coolant temperature to be maintained at a relatively suitable level, preventing the coolant temperature from being too low and causing adverse effects on the entire heat dissipation system and the load.

[0097] When the load's thermal power consumption exceeds a preset threshold, the large amount of heat generated by the load causes the coolant to absorb even more heat, leading to a tendency for the coolant temperature to rise. In this case, the cold energy previously stored in the energy storage unit 20 comes into play. Through the reverse heat transfer effect of components such as the heat exchange cold plate 200 and the heat transfer fins 201, the cold energy stored in the energy storage material 202 is transferred back to the coolant, thereby ensuring the stability of the coolant temperature. This allows the heat dissipation device to continue to effectively dissipate heat for the load and maintain normal operation of the load.

[0098] For example, some high-precision electronic chips are more sensitive to temperature changes, and excessive cooling may cause the chip performance to deteriorate. By storing excess cooling in the energy storage unit 20, the coolant temperature can be maintained in a more suitable range to ensure the normal operation of the chip. When the device is in a high-load operating state, such as when a server cluster is processing a large number of data tasks, the load thermal power consumption is greater than the preset threshold. At this time, the cooling stored in the energy storage unit 20 can ensure the stability of the coolant temperature. This can effectively prevent the coolant temperature from being too high, causing the device to overheat, thereby ensuring that the server cluster can continuously and stably process data tasks, and avoid serious consequences such as system crashes and data loss due to heat dissipation problems.

[0099] In one embodiment, referring to Figure 8 Each energy storage material 202 is provided with a temperature sensor 204, which is used to monitor the temperature of the corresponding energy storage material 202. The control module 3 is used to receive the temperature of the energy storage material 202 monitored by the temperature sensor 204. If it is monitored that the temperature of the energy storage material 202 continues to decrease, and the difference between the temperature of the energy storage material 202 and the temperature of the coolant is less than a preset threshold, the operating state of the cooling module 1 or the flow rate of the coolant is adjusted; if it is monitored that the temperature of the energy storage material 202 continues to rise, the control module 3 evaluates the time that emergency heat dissipation can be maintained based on the temperature monitored by the temperature sensor 204, and takes emergency measures.

[0100] Among them, a temperature sensor 204 is set on each energy storage material 202, one of the main purposes of which is to achieve accurate monitoring of the internal temperature of the energy storage unit 20. During the normal operation of the heat dissipation device, the temperature information of the energy storage material 202 can be obtained in real time through the temperature sensor 204. The temperature information can be fed back to the control system of the entire heat dissipation system. For example, when the energy storage unit 20 is storing cold energy, the control system can judge the progress and status of the cold energy storage based on the data of the temperature sensor 204. If the temperature sensor 204 shows that the temperature of the energy storage material 202 has dropped to a temperature close to that of the coolant, it means that the cold energy storage may be close to saturation. The control system can adjust the working state of the cooling module 1 or parameters such as the flow rate of the coolant accordingly to avoid excessive cooling and energy waste.

[0101] In the event of an emergency when the cooling module 1 fails, since the energy storage unit 20 needs to use the stored cold to provide heat dissipation for the load, the temperature sensor 204 can help determine the remaining cold in the energy storage material 202. For example, if the temperature sensor 204 detects that the temperature of the energy storage material 202 is rising rapidly, this means that the cold in the energy storage material 202 is being released rapidly, which may be due to excessive heat consumption of the load or excessive emergency heat dissipation time. At this point, the control system can evaluate how long the emergency heat dissipation can be maintained based on the data from the temperature sensor 204, and can take some emergency measures, such as reducing the power of the load (if feasible) or sounding an alarm to remind the operator to perform emergency maintenance, thereby ensuring that effective measures can be taken to protect the load equipment before the cold of the energy storage material 202 is exhausted.

[0102] From the perspective of long-term operation, the temperature data of the energy storage material 202 recorded by the temperature sensor 204 can be used to evaluate the performance of the heat dissipation device. By analyzing these temperature data, the working efficiency of the energy storage unit 20 under different load conditions can be understood.

[0103] In one embodiment, Figure 9 As shown, the cooling module 1 includes a circulation unit 10, and the circulation unit 10 includes at least one circulating water pump 100 and at least one circulating ball valve 101; the circulating ball valve 101 is arranged between the output end of the circulating water pump 100 and the input end of the energy storage unit 20, and the input end of the circulating water pump 100 is connected to the other end of the pipeline flowing through the load; by opening the circulating ball valve 101 and the corresponding circulating water pump 100, the coolant circulates in the pipeline.

[0104] The circulating water pump 100 serves as the power source for coolant circulation, with its input connected to the other end of the pipe passing through the load. When the load is operating, coolant flows out of the pipe passing through the load and into the input of the circulating water pump 100. When powered on, the circulating water pump 100 generates a certain pressure, drawing coolant from its input. Inside the pump, through components such as the impeller, the coolant is then pushed out of the output at a certain pressure and flow rate.

[0105] The circulation ball valve 101 plays the role of controlling the flow direction of the coolant. When the circulation ball valve 101 is in the open state, the coolant pushed out from the output end of the circulating water pump 100 can smoothly pass through the circulation ball valve 101 and then flow to the input end of the energy storage unit 20. During normal heat dissipation operation, by reasonably opening the corresponding circulation ball valve 101 and starting the corresponding circulating water pump 100, a complete coolant circulation path can be established. The coolant flows out from the load, is pressurized and changes the flow direction by the circulating water pump 100, and then smoothly enters the energy storage unit 20 under the control of the circulation ball valve 101. After heat exchange and other operations in the energy storage unit 20 (such as transferring heat to the energy storage material 202, etc.), it will return to the load along the corresponding path, thereby completing a round of coolant circulation and achieving continuous heat dissipation of the load.

[0106] In one embodiment, by adjusting the opening of the circulation ball valve 101 and selecting to start different numbers or different powers of the circulation water pumps 100, the flow rate and flow rate of the coolant can be flexibly controlled. Multiple pairs of circulation water pumps 100 and circulation ball valves 101 can be set. Figure 9 Taking two pairs as an example, one is used and the other is used as a backup to prevent redundancy and reduce power consumption and cost.

[0107] For example, when the load's thermal power consumption is high, the opening of the circulation ball valve 101 can be appropriately increased and the high-power circulation water pump 100 can be started, allowing the coolant to circulate within the system at a faster speed and a larger flow rate, thereby more efficiently removing the heat generated by the load and ensuring the heat dissipation effect. Conversely, when the load's thermal power consumption is low, the opening of the circulation ball valve 101 can be correspondingly reduced and a low-power circulation water pump 100 can be selected, which can both meet the heat dissipation requirements and save energy to a certain extent. More specific settings and startup methods are not described in detail in this embodiment.

[0108] This embodiment includes two cooling modes for the coolant flowing through the load, namely, an external water cooling mode and a refrigeration mode. The structures and respective working states of the two modes will be described in detail below.

[0109] Among them, in the external water cooling mode: in order to realize cooling the coolant in the circulation pipeline, in one embodiment, as Figure 10As shown, the cooling module 1 also includes an external water cooling unit 11, and the external water cooling unit 11 includes a plate heat exchanger 110 and an external water pump 111; the external water pump 111 is arranged in a liquid supply tank (not shown in the figure), and the output end of the external water pump 111 is connected to the input end of the plate heat exchanger 110, and the output end of the plate heat exchanger 110 is connected to the liquid supply tank; the pipeline between the other end of the pipeline flowing through the load and the circulating water pump 100 flows through the plate heat exchanger 110, so as to cool the coolant flowing through the load through the plate heat exchanger 110.

[0110] Among them, the external water pump 111 serves as the power source of the entire external water cooling unit 11 and is set in the liquid supply tank. When the external water pump 111 is started, it will extract external water (usually ordinary water as a cooling medium) from the liquid supply tank and push it to the input end of the plate heat exchanger 110 at a certain pressure. The liquid supply tank can be replaced with seawater or river water. The plate heat exchanger 110 contains many separated channels, which enable different fluids (referring to the extracted external water and the coolant flowing through the load) to exchange heat without mixing with each other.

[0111] When the external water is pushed from the external water pump 111 and enters the input end of the plate heat exchanger 110, it will flow in a specific channel inside the plate heat exchanger 110. At the same time, the part of the coolant flowing through the load pipeline between it and the circulating water pump 100 will also flow into another set of channels of the plate heat exchanger 110. Since the two fluids are closely adjacent to each other in the plate heat exchanger 110 but do not mix with each other, there will be heat transfer between them. Under normal circumstances, the temperature of the external water is relatively low (because it comes from the liquid supply pool, and new external water is constantly replenished to maintain a relatively low temperature state), while the coolant flowing through the load has a higher temperature after absorbing the heat generated by the load. According to the principle of heat transfer, heat will be transferred from the high-temperature coolant to the low-temperature external water. In the plate heat exchanger 110, the coolant transfers its own heat to the external water through sufficient heat exchange with the external water, thereby reducing its own temperature.

[0112] After heat exchange, the external water, carrying the heat absorbed from the coolant, flows out of the output end of plate heat exchanger 110 and returns to the liquid supply tank. The cooled coolant then flows out of the other outlet of plate heat exchanger 110, continues along the circulation pipeline, and enters the circulating water pump 100 and other subsequent links, where it re-enters the entire heat dissipation cycle and continues to dissipate heat for the load.

[0113] In one embodiment, by properly adjusting the power of the external water pump 111, the flow rate and flow velocity of the external water can be controlled, thereby affecting the efficiency of heat exchange within the plate heat exchanger 110. For example, when the load heat power consumption is large and the coolant temperature rises rapidly, the power of the external water pump 111 can be appropriately increased, thereby increasing the flow rate and flow velocity of the external water. This allows for faster and more complete heat exchange within the plate heat exchanger 110, thereby more efficiently reducing the coolant temperature. Conversely, when the load heat power consumption is small and the coolant temperature rises only slightly, the power of the external water pump 111 can be appropriately reduced, thereby saving energy while ensuring the coolant cooling effect.

[0114] In cooling mode: when the external water cooling unit 11 cannot meet the cooling demand of the coolant flowing through the load (specifically, it can be determined by detecting the temperature of the coolant after flowing through the external water cooling unit 11), this embodiment also proposes another cooling mode. In one embodiment, referring to Figure 10 The external water cooling unit 11 also includes a tubular heat exchanger 112 , the output end of the external water pump 111 is connected to the input end of the tubular heat exchanger 112 , and the output end of the tubular heat exchanger 112 is connected to the input end of the plate heat exchanger 110 .

[0115] The cooling module 1 also includes a refrigeration unit 12, which includes an evaporator 120 and a condenser 121; the liquid outlet of the evaporator 120 is connected to the input end of the condenser 121, and the pipeline of the output end of the condenser 121 flows through the tubular heat exchanger 112 and is connected to the liquid inlet end of the evaporator 120; the pipeline between the other end of the pipeline flowing through the load and the circulating water pump 100 also flows through the evaporator 120; liquid refrigerant is provided in the evaporator 120, and when the coolant from the load flows through the evaporator 120, the liquid refrigerant in the evaporator 120 absorbs the heat of the coolant and becomes a gaseous refrigerant, and the condenser 121 is used to liquefy the gaseous refrigerant and cool the liquefied refrigerant through the tubular heat exchanger 112. The liquefied and cooled liquid refrigerant returns to the evaporator 120 for circulation.

[0116] The external water pumped by external water pump 111 flows out of the output port and enters tubular heat exchanger 112. In tubular heat exchanger 112, the external water undergoes a certain degree of heat exchange with the refrigerant to be subsequently processed (the heat exchange with the refrigerant will be described in detail later). The external water then flows to plate heat exchanger 110 to continue cooling the coolant (because the output port of tubular heat exchanger 112 is connected to the input port of plate heat exchanger 110). In one embodiment, external water can be supplied separately to tubular heat exchanger 112 and plate heat exchanger 110. To save energy, this embodiment uses a single water supply structure.

[0117] The coolant flowing through the load pipeline between it and the circulating water pump 100 will flow through the evaporator 120. Liquid refrigerant is stored inside the evaporator 120. Since the temperature of the coolant is high after absorbing the heat generated by the load, the temperature of the liquid refrigerant is relatively low. When the coolant flows through the evaporator 120, according to the principle of heat transfer, the heat of the coolant will be transferred to the liquid refrigerant, causing the liquid refrigerant to absorb a large amount of heat and then transform from liquid to gaseous refrigerant. The gaseous refrigerant will flow out from the liquid outlet of the evaporator 120 and enter the input end of the condenser 121. The main function of the condenser 121 is to reliquefy the gaseous refrigerant. Through some specific refrigeration technologies and equipment structures (such as compression, heat dissipation and other mechanisms), the gaseous refrigerant releases heat after being processed inside the condenser 121, thereby turning back into liquid refrigerant.

[0118] The liquefied refrigerant flows out of the output port of condenser 121 and first passes through tubular heat exchanger 112. At this point, the liquid refrigerant is still relatively hot, and further heat exchanges with the external water in tubular heat exchanger 112. This heat exchange with the external water further lowers the temperature of the liquid refrigerant, making it more suitable for returning to evaporator 120 and rejoining the cooling cycle of the coolant.

[0119] After cooling through tubular heat exchanger 112, the liquid refrigerant flows out of its output port and then returns along the connecting pipe to the liquid inlet port of evaporator 120, rejoining the entire refrigeration cycle. Through the coordinated operation of evaporator 120, condenser 121, and tubular heat exchanger 112, heat is continuously absorbed from the coolant flowing through the load, converted into gaseous refrigerant, and then liquefied and cooled before returning to evaporator 120. This achieves continuous and efficient cooling of the coolant, meeting the heat dissipation requirements when the external water cooling unit 11 cannot meet the cooling demand.

[0120] If the load power is very high, the temperature of the coolant flowing through the evaporator 120 is very high, resulting in a high temperature of the refrigerant vaporized in the evaporator 120. After being liquefied by the condenser 121, the tubular heat exchanger 112 alone cannot cool the liquefied refrigerant in time, thereby affecting the operation of the evaporator 120. In one embodiment, referring to Figure 10 The refrigeration unit 12 further includes an air cooler 122 , the input end of the air cooler 122 is connected to the output end of the condenser 121 , and the output end of the air cooler 122 is connected to the liquid inlet end of the evaporator 120 .

[0121] When the load power is high, a large amount of heat is transferred to the coolant, causing the coolant temperature flowing through evaporator 120 to rise significantly. Within evaporator 120, due to the high coolant temperature, the liquid refrigerant absorbs a large amount of heat and vaporizes, resulting in a correspondingly high temperature. The hot gaseous refrigerant then enters condenser 121, where it returns to liquid form through a specific condensation mechanism (such as compression and heat dissipation).

[0122] However, if the temperature of the refrigerant returning to the evaporator 120 is greater than or equal to a threshold temperature, indicating that the tubular heat exchanger 112 is unable to meet the cooling requirements of the liquefied refrigerant, the liquefied refrigerant is cooled by the air cooler 122, and the cooled refrigerant is returned to the evaporator 120. The threshold temperature is determined based on the current heat dissipation requirements, and the specific value is not specifically limited in this embodiment. In one embodiment, the evaporator 120 includes a sensor for monitoring the refrigerant temperature therein.

[0123] Because the refrigerant temperature is too high, heat exchange between tubular heat exchanger 112 and the external water alone is insufficient to quickly and effectively reduce its temperature. This is because the cooling capacity of tubular heat exchanger 112 is limited by the external water temperature and flow rate, as well as its own heat exchange efficiency. When this occurs, air cooler 122 begins to intervene.

[0124] The air cooler 122 uses air as a cooling medium, and its input end receives the liquefied refrigerant that is still in a high-temperature state output from the condenser 121. Inside the air cooler 122, there is a series of heat dissipation fins or pipe structures (not shown in the figure), in which the high-temperature liquefied refrigerant flows. At the same time, the external air blows through these heat dissipation structures under the action of equipment such as fans. According to the principle of heat exchange, the heat of the high-temperature liquefied refrigerant will be transferred to the air, and the air will take away the heat, thereby cooling the liquefied refrigerant. The temperature of the liquefied refrigerant cooled by the air cooler 122 is reduced to an appropriate level, and then flows out from the output end of the air cooler 122, smoothly enters the liquid inlet end of the evaporator 120, and re-participates in the entire refrigeration cycle. This ensures that the evaporator 120 can work continuously and stably, ensures that the coolant can effectively transfer heat to the refrigerant in the evaporator 120, and maintains the efficient operation of the entire heat dissipation system.

[0125] In one embodiment, referring to Figure 10 A ball valve D and a ball valve E are respectively provided on the pipeline between the condenser 121 and the tubular heat exchanger 112, and on the pipeline between the condenser 121 and the air cooler 122. The two ball valves are opened and closed respectively, and two methods are selected to cool the liquid refrigerant according to different needs.

[0126] In order to facilitate timely switching of the two cooling modes according to the temperature of the coolant flowing through the load, in one embodiment, continue to refer to Figure 10 The cooling module 1 also includes a three-way valve 13, a first port of the three-way valve 13 is connected to the other end of the pipeline flowing through the load, a second port of the three-way valve 13 is connected to the input end of the circulating water pump 100, and a third port of the three-way valve 13 is connected to the pipeline flowing through the evaporator 120; when the temperature of the coolant flowing through the load is lower than a preset temperature, the first port and the second port of the three-way valve 13 are opened to cool the coolant through the external water cooling unit 11; when the temperature of the coolant flowing through the load is higher than or equal to the preset temperature, the second port of the three-way valve 13 is closed, and the first port and the third port of the three-way valve 13 are opened to cool the coolant through the refrigeration unit 12.

[0127] The cooling method of the external water cooling unit 11 and the cooling method of the refrigeration unit 12 are described above and will not be repeated here.

[0128] Example 5:

[0129] In combination with the aforementioned embodiment 3 and embodiment 4, this embodiment specifically describes the process of testing the heat dissipation system.

[0130] like Figure 11 As shown, the sensors in the heat dissipation system include: a load liquid inlet temperature sensor T1, a load liquid inlet pressure sensor P1, a load liquid inlet flow sensor FT1, a load liquid outlet temperature sensor T2, a load liquid outlet pressure sensor P2, an external water temperature sensor T4, a temperature sensor 204 on the energy storage unit, and an external water flow sensor FT4 are respectively provided in the circulation pipeline of the heat dissipation system. The above sensors are used to transmit signals such as temperature, flow and pressure to the acquisition module 3'.

[0131] In one embodiment, Figure 12 As shown, the testing process of the heat dissipation system includes:

[0132] After the test platform is powered on, the system is initialized, and power is supplied to the test platform through the power supply unit. The host computer is started and user identity verification is first performed. The test process can be started only after the verification is passed. During the test process, the test items of the heat dissipation system are first selected through the parameter setting interface. The test start button is clicked on the host computer interface, and the instruction is sent through the host computer. The signal is input to the heat dissipation system through the interface module 2' through the controller 1'. After the control module in the heat dissipation system receives the signal, it controls the downstream module to execute the corresponding test content and feeds back the execution information to the host computer for data feedback. It logically determines whether this test item is normal or not, and then saves this test item information into the database. The test content is automatically performed one by one in sequence. In one embodiment, after all the test items are completed, click the test completion button and print the test results through the report subsystem.

[0133] In one embodiment, the working principle of the testing device includes:

[0134] The normal modes of the heat dissipation system include external water cooling mode, cooling module liquid cooling mode, and cooling module air cooling mode. The structure involved in the external water cooling mode includes a plate heat exchanger 110 and an external water pump 111. The operating principle of the external water cooling mode specifically includes the following: when the external water pump 111 is started, it draws external water (usually ordinary water as a cooling medium) from the liquid supply tank and pushes it to the input end of the plate heat exchanger 110 at a certain pressure. The liquid supply tank can be replaced with seawater or river water. The plate heat exchanger 110 contains many separated channels, allowing different fluids (the drawn external water and the coolant flowing through the load) to exchange heat without mixing. When the external water is pushed by the external water pump 111 and enters the input end of the plate heat exchanger 110, it flows through specific channels within the plate heat exchanger 110. At the same time, the coolant flowing through the load pipeline between it and the circulating water pump 100 also flows into another set of channels in the plate heat exchanger 110. Since the two fluids are closely adjacent to each other in the plate heat exchanger 110 but do not mix with each other, heat transfer will occur between them. Under normal circumstances, the temperature of the external water is relatively low (because it comes from the liquid supply pool, and new external water is constantly replenished to maintain a relatively low temperature state), while the temperature of the coolant flowing through the load is higher after absorbing the heat generated by the load. According to the principle of heat transfer, heat will be transferred from the high-temperature coolant to the low-temperature external water. In the plate heat exchanger 110, the coolant transfers its own heat to the external water through sufficient heat exchange with the external water, thereby reducing its own temperature. After the heat exchange is completed, the external water flows out from the output end of the plate heat exchanger 110 with the heat absorbed from the coolant and returns to the liquid supply pool. The cooled coolant flows out from the other outlet of the plate heat exchanger 110, continues to flow along the circulation pipeline, and enters the subsequent links such as the circulating water pump 100, so as to participate in the entire heat dissipation cycle again and continue to dissipate heat for the load.

[0135] In one embodiment, the structure involved in the liquid cooling mode of the cooling module includes a tubular heat exchanger 112, a refrigeration unit 12, an evaporator 120 and a condenser 121. The working principle of the liquid cooling mode of the cooling module specifically includes: after the external water extracted by the external water pump 111 flows out from the output end, it will enter the tubular heat exchanger 112. In the tubular heat exchanger 112, the external water will undergo a certain degree of heat exchange and other operations with the refrigerant to be processed later (the heat exchange with the refrigerant will be described in detail later), and then flow to the plate heat exchanger 110 to continue to participate in the cooling process of the coolant (because the output end of the tubular heat exchanger 112 is connected to the input end of the plate heat exchanger 110). In one embodiment, external water can also be provided separately to the tubular heat exchanger 112 and the plate heat exchanger 110. In order to save energy consumption, this embodiment adopts the same water supply structure.

[0136] The coolant flowing through the load pipeline between it and the circulating water pump 100 will flow through the evaporator 120. Liquid refrigerant is stored inside the evaporator 120. Since the temperature of the coolant is high after absorbing the heat generated by the load, the temperature of the liquid refrigerant is relatively low. When the coolant flows through the evaporator 120, according to the principle of heat transfer, the heat of the coolant will be transferred to the liquid refrigerant, causing the liquid refrigerant to absorb a large amount of heat and then transform from liquid to gaseous refrigerant. The gaseous refrigerant will flow out from the liquid outlet of the evaporator 120 and enter the input end of the condenser 121. The main function of the condenser 121 is to reliquefy the gaseous refrigerant. Through some specific refrigeration technologies and equipment structures (such as compression, heat dissipation and other mechanisms), the gaseous refrigerant releases heat after being processed inside the condenser 121, thereby turning back into liquid refrigerant.

[0137] The liquefied refrigerant flows out of the output port of condenser 121 and first passes through tubular heat exchanger 112. At this point, the liquid refrigerant is still relatively hot, and further heat exchanges with the external water in tubular heat exchanger 112. This heat exchange with the external water further lowers the temperature of the liquid refrigerant, making it more suitable for returning to evaporator 120 and rejoining the cooling cycle of the coolant.

[0138] After cooling through tubular heat exchanger 112, the liquid refrigerant flows out of its output port and then returns along the connecting pipe to the liquid inlet port of evaporator 120, rejoining the entire refrigeration cycle. Through the coordinated operation of evaporator 120, condenser 121, and tubular heat exchanger 112, heat is continuously absorbed from the coolant flowing through the load, converted into gaseous refrigerant, and then liquefied and cooled before returning to evaporator 120. This achieves continuous and efficient cooling of the coolant, meeting the heat dissipation requirements when the external water cooling unit 11 cannot meet the cooling demand.

[0139] In one embodiment, the structure involved in the air-cooling mode of the cooling module includes an air cooler 122. When the load power is very high, a large amount of heat is transferred to the coolant, causing the temperature of the coolant flowing through the evaporator 120 to rise significantly. In the evaporator 120, due to the high temperature of the coolant, the liquid refrigerant absorbs a large amount of heat and vaporizes, and the temperature of the vaporized refrigerant is also correspondingly very high. Afterwards, the high-temperature gaseous refrigerant enters the condenser 121, where it is converted back to liquid through a specific condensation mechanism (such as compression and heat dissipation). However, when it is monitored that the temperature of the refrigerant returning to the evaporator 120 is greater than or equal to the threshold temperature, it indicates that the tubular heat exchanger 112 is unable to meet the cooling demand of the liquefied refrigerant at this time, and the liquefied refrigerant needs to be cooled by the air cooler 122, and the cooled refrigerant is returned to the evaporator 120.

[0140] Based on the relevant structures and working principles of the above-mentioned external water cooling mode, cooling module liquid cooling mode and cooling module air cooling mode, the acquisition module 3' in the test device collects the load inlet temperature, load inlet pressure, load inlet flow, load outlet temperature, load outlet pressure, energy storage unit temperature, external water temperature and external water flow as collected information, and performs logical judgment on the collected information through the test platform PLC control program to obtain a working signal suitable for the current working mode of the cooling system, and transmits the corresponding working signal to the control module 3 in the cooling system through the interface module 2', and then executes the corresponding working mode through the cooling module 1 and the emergency module 2.

[0141] In one embodiment, Figure 11 As shown, the heat dissipation system is in the external water cooling mode in the initial state. When the acquisition module 3' acquires a first temperature value through the external water temperature sensor T4 and uploads it to the controller 1', the controller 1' calculates that the first temperature value is higher than the preset temperature. At this time, the external water cooling mode cannot meet the heat dissipation demand of the coolant and needs to be switched to the cooling module liquid cooling mode. The controller 1' sends a working signal to switch to the cooling module liquid cooling mode through the interface module 2'. After receiving the corresponding working signal, the control module 3 in the heat dissipation system switches the conduction inlet and outlet of the three-way valve 13 to realize the switching of the working mode. The specific switching process involves the opening and closing of the corresponding valves, which is described above and will not be explained in detail here.

[0142] In one embodiment, the acquisition module 3' collects a first flow value through the external water flow sensor FT4 and uploads it to the controller 1'. The controller 1' calculates that the first flow value is lower than the preset flow rate. During the continuous monitoring process, it is found that the first flow value is continuously decreasing. At this time, it indicates that the external water volume is insufficient and there is a risk of water outage. The external water cooling mode cannot meet the heat dissipation requirements of the coolant and needs to be switched to the cooling module liquid cooling mode. The controller 1' sends a working signal to switch to the cooling module liquid cooling mode through the interface module 2'. After the control module 3 in the heat dissipation system receives the corresponding working signal, it switches the inlet and outlet of the three-way valve 13 to achieve the switching of the working mode. The specific switching process involves the opening and closing of the corresponding valves, which will not be described in detail here.

[0143] The abnormal mode of the heat dissipation system is the emergency cooling mode, which switches the valve group of the emergency module 2, starts the emergency water pump 21, and uses the cold energy stored in the energy storage unit 20 to maintain the supply of low-temperature coolant in emergency situations to ensure normal operation of the load.

[0144] In one embodiment, the acquisition module 3' collects the second flow value through the load inlet flow sensor FT1 and uploads it to the controller 1'. The controller 1' calculates that the second flow value is lower than the preset flow rate. During the continuous monitoring process, it is found that the second flow value is continuously decreasing. At this time, it indicates that the coolant supply in the loop is insufficient, that is, the circulation unit 10 fails and needs to be switched to the emergency cooling mode. The controller 1' sends a working signal to switch to the emergency cooling mode through the interface module 2'. After receiving the corresponding working signal, the control module 3 in the heat dissipation system controls the corresponding valve group (ball valve A, ball valve B, ball valve C and emergency water pump 21 to switch the working mode to the emergency cooling mode, turn off ball valve A and ball valve B, and open ball valve C and emergency water pump 21. The more specific switching process will not be explained in detail here.

[0145] In one embodiment, the test platform collects information about the operation of relevant water pumps, compressors, and valve blocks through the interface module 2' and transmits it to the test platform PLC. The PLC then transmits this information to the host computer, which uses a program to determine the correctness of its operation. By adjusting the external water temperature and flow parameters in each mode, the heat dissipation system can switch between four operating modes: external water cooling mode, refrigeration module liquid cooling mode, refrigeration module air cooling mode, and emergency cooling mode. The correctness of the operation of the actuators such as the water pumps, compressors, and valve blocks in each of the four operating modes can be further verified to further complete the test of the heat dissipation system.

[0146] The specific structure of the testing device is shown in Example 2 and will not be described in detail in this example.

[0147] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A test device for an LCU control system, characterized in that: include: A controller (1'), an interface module (2') and an acquisition module (3'), wherein the controller (1') is connected to the interface module (2'), the interface module (2') is connected to a control module in a system to be tested, and the acquisition module (3') is respectively connected to the controller (1') and sensors on the system to be tested; The acquisition module (3') is used to acquire the working status of the system to be tested according to corresponding sensors to obtain acquisition information, and upload the acquisition information to the controller (1'); The controller (1') is used to generate a working signal according to the collected information, and transmit the working signal to the system to be tested through the interface module (2'), and the system to be tested is used to execute a corresponding working mode according to the working signal; the working modes include an external water cooling mode of the heat dissipation system, a liquid cooling mode of the refrigeration module, an air cooling mode of the refrigeration module, and an emergency cooling mode; After the system under test executes the corresponding working mode, the execution result is uploaded to the controller (1') through the interface module (2'), and the controller (1') is used to judge whether the system under test is working normally based on the execution result.

2. A method for testing an LCU control system, characterized in that: The method is applicable to the test device of the LCU control system according to claim 1, comprising: The acquisition module (3') acquires the working status of the system to be tested according to corresponding sensors to obtain acquisition information, and uploads the acquisition information to the controller (1'); The controller (1') generates a working signal according to the collected information, and transmits the working signal to the system to be tested via the interface module (2'), and the system to be tested is used to execute a corresponding working mode according to the working signal; After the system under test executes the corresponding working mode, the execution result is uploaded to the controller (1') through the interface module (2'), and the controller (1') determines whether the system under test is working normally based on the execution result.

3. A heat dissipation system, characterized in that: The test device of the LCU control system according to claim 1 is used for testing the heat dissipation system, wherein the heat dissipation system comprises: a cooling module (1), an emergency module (2), a control module (3), and a plurality of sensors arranged on a pipeline, wherein the emergency module (2) comprises an energy storage unit (20) and an emergency water pump (21); the control module (3) is connected to the interface module (2'), and the sensor is connected to the acquisition module (3'); The output end of the cooling module (1) is connected to the input end of the energy storage unit (20), the output end of the energy storage unit (20) is connected to one end of a pipeline flowing through a load, and the other end of the pipeline flowing through the load is connected to the input end of the cooling module (1); one end of the emergency water pump (21) is connected to the input end of the energy storage unit (20), and the other end of the emergency water pump (21) is connected to the other end of the pipeline flowing through the load; The control module (3) is used to control the cooling module (1) and the emergency module (2) to execute corresponding working modes according to the working signal; The cooling module (1) is used to cool the coolant flowing through the load; When the cooling module (1) fails, the input and output ends of the cooling module (1) are closed, the emergency water pump (21) is turned on, and the coolant flowing through the load is circulated and cooled through the emergency water pump (21) and the energy storage unit (20).

4. The heat dissipation system according to claim 3, characterized in that: The energy storage unit (20) comprises a heat exchange cold plate (200), heat transfer fins (201), a plurality of energy storage materials (202), and a cover plate (203); the energy storage materials (202) are sequentially arranged on both sides of the heat exchange cold plate (200); the heat transfer fins (201) are arranged on the heat exchange cold plate (200) and are located between every two energy storage materials (202); the cover plate (203) covers the energy storage materials (202); The input end of the heat exchange cold plate (200) is connected to the output end of the cooling module (1), and the output end of the heat exchange cold plate (200) is connected to one end of a pipeline flowing through a load; the heat exchange cold plate (200) and the heat transfer fins (201) are used to transfer heat in the coolant to the energy storage material (202); When the load thermal power consumption is lower than or equal to a preset threshold, the energy storage unit (20) is used to store excess cold in the coolant; when the load thermal power consumption is greater than the preset threshold, the energy storage unit (20) is used to absorb heat in the coolant.

5. The heat dissipation system according to claim 4, characterized in that: A temperature sensor (204) is provided on each energy storage material (202), and the temperature sensor (204) is used to monitor the temperature of the corresponding energy storage material (202); The control module (3) is used to receive the temperature of the energy storage material (202) monitored by the temperature sensor (204), and if it is monitored that the temperature of the energy storage material (202) continues to decrease, and the difference between the temperature of the energy storage material (202) and the temperature of the coolant is less than a preset threshold, then adjust the working state of the cooling module (1) or the flow rate of the coolant; If it is monitored that the temperature of the energy storage material (202) continues to rise, the control module (3) is used to evaluate the time that the emergency heat dissipation can be maintained based on the temperature monitored by the temperature sensor (204) and take emergency measures.

6. The heat dissipation system according to claim 3, characterized in that: The cooling module (1) comprises a circulation unit (10), and the circulation unit (10) comprises at least one circulation water pump (100) and at least one circulation ball valve (101); The circulating ball valve (101) is arranged between the output end of the circulating water pump (100) and the input end of the energy storage unit (20), and the input end of the circulating water pump (100) is connected to the other end of the pipeline flowing through the load; by opening the circulating ball valve (101) and the corresponding circulating water pump (100), the coolant circulates in the pipeline.

7. The heat dissipation system according to claim 6, characterized in that: The cooling module (1) further comprises an external water cooling unit (11), the external water cooling unit (11) comprising a plate heat exchanger (110) and an external water pump (111); the external water pump (111) is arranged in a liquid supply tank, the output end of the external water pump (111) is connected to the input end of the plate heat exchanger (110), and the output end of the plate heat exchanger (110) is connected to the liquid supply tank; The pipeline between the other end of the pipeline flowing through the load and the circulating water pump (100) flows through the plate heat exchanger (110), so as to cool the coolant flowing through the load through the plate heat exchanger (110).

8. The heat dissipation system according to claim 7, characterized in that: The external water cooling unit (11) further comprises a tubular heat exchanger (112), the output end of the external water pump (111) is connected to the input end of the tubular heat exchanger (112), and the output end of the tubular heat exchanger (112) is connected to the input end of the plate heat exchanger (110); The cooling module (1) further comprises a refrigeration unit (12), the refrigeration unit (12) comprising an evaporator (120) and a condenser (121); the liquid outlet of the evaporator (120) is connected to the input end of the condenser (121), and the pipeline of the output end of the condenser (121) flows through the tubular heat exchanger (112) and is connected to the liquid inlet end of the evaporator (120); The pipeline between the other end of the pipeline flowing through the load and the circulating water pump (100) also flows through the evaporator (120); The evaporator (120) is provided with a liquid refrigerant. When the cooling liquid from the load flows through the evaporator (120), the liquid refrigerant in the evaporator (120) absorbs the heat of the cooling liquid and becomes a gaseous refrigerant. The condenser (121) is used to liquefy the gaseous refrigerant and cool the liquefied refrigerant through the tubular heat exchanger (112). The liquefied and cooled liquid refrigerant returns to the evaporator (120) for circulation.

9. The heat dissipation system according to claim 8, characterized in that: The refrigeration unit (12) further comprises an air cooler (122), wherein the input end of the air cooler (122) is connected to the output end of the condenser (121), and the output end of the air cooler (122) is connected to the liquid inlet end of the evaporator (120); When it is monitored that the temperature of the refrigerant flowing back to the evaporator (120) is greater than or equal to a threshold temperature, the liquefied refrigerant is cooled by the air cooler (122), and the cooled refrigerant flows back to the evaporator (120).

10. The heat dissipation system according to claim 8, characterized in that: The cooling module (1) further comprises a three-way valve (13), a first port of the three-way valve (13) being connected to the other end of a pipeline flowing through a load, a second port of the three-way valve (13) being connected to an input end of the circulating water pump (100), and a third port of the three-way valve (13) being connected to a pipeline flowing through the evaporator (120); When the temperature of the coolant flowing through the load is lower than a preset temperature, the first port and the second port of the three-way valve (13) are connected to cool the coolant through the external water cooling unit (11); When the temperature of the coolant flowing through the load is higher than or equal to a preset temperature, the second port of the three-way valve (13) is closed, and the first port and the third port of the three-way valve (13) are connected to cool the coolant through the refrigeration unit (12).

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