Testing device and testing method of LCU control system and heat dissipation system

Abstract

The invention relates to the technical field of detection equipment, in particular to a testing device and testing method of an LCU control system and a heat dissipation system.The working state of a to-be-tested system is collected through a collection module, and a controller generates a working signal most suitable for the to-be-tested system at the moment according to the working state of the to-be-tested system; after executing a corresponding working mode according to the working signal, the system to be tested uploads an execution result to the controller, and the controller analyzes and logically judges the execution result 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 or not according to the corresponding test result; according to the invention, testing can be carried out according to different testing requirements of different types of to-be-tested systems, and the applicability is wide; the test management software of the controller can be autonomously programmed, the method can be applied to test work of different types of LCU control systems by changing parameters, the data processing speed is high, the test result is accurate, and the test efficiency is high.

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 the field of industrial automation. They are responsible for the operation and protection of electrical equipment, involving 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 debugging of each control system is the lifeblood of product quality and an essential and important link.

[0003] In the current field of local control unit (LCU) control system testing, most of the testing is done manually, with a low degree of automation and often insufficient production efficiency. Operators usually use a multimeter to check the lines point by point, and need to move a large number of cables and components during power-on testing, which makes the inspection staff's tasks heavy and the operation cumbersome, and the work efficiency is not improved. The testing work is also prone to some human omissions and errors.

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

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

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

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

[0008] The acquisition module 3' is used to acquire the working status of the system to be tested according to the corresponding sensor 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', and the system under test is used to execute a corresponding working mode according to the working signal;

[0014] After the system under test executes the corresponding working mode, the interface module 2' uploads the execution result to the controller 1', and the controller 1' determines whether the system under test works normally according to the execution result.

[0015] In a third aspect, a heat dissipation system is provided. The test device of 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 a plurality of 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 material 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 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, the working state of the cooling module 1 or the flow rate of the coolant is adjusted;

[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 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;

[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 comprises an external water cooling unit 11, and the external water cooling unit 11 comprises 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, and the refrigeration unit 12 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 then 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 liquid refrigerant. 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. 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 the 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, 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 connected 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 connected 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 most suitable working signal 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', and the controller 1' analyzes and logically judges the execution result 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 wide applicability; the test management software of the controller 1' can be independently compiled, and by changing parameters, it can be applied to the testing 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0042] Figure 1 It is a structural schematic 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 is a structural schematic diagram of a support rod provided by an embodiment of the present invention;

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

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

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

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

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

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

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

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

[0053] Fig.12 The present invention provides a test flow chart of a test device. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples" and the like are intended to indicate that 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 only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. 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, the meaning of "multiple" is two or more. In addition, for example, the same type of nouns may be described as two independent individuals by adding "A" and "B" at the end. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the same type of individuals for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0057] When describing some embodiments, the expressions "coupling", "coupling" and "connection" and their derivatives may be used. For example, when describing some embodiments, the term "connection" 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 "coupling" may be used to indicate that two or more components are in direct physical or electrical contact. However, the terms "connection" or "coupling" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other, such as "optical path 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] Embodiment 1:

[0060] Before describing the structure of a 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, and 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. Cabinet doors are installed on the front and back of the platform body of the test platform, and the front door 6 and the rear door 8 can be opened or locked. There are 4 wheels at the bottom of the platform body of the test platform, 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 arranged in the piston 93, 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, which is convenient for personnel to maintain the test device. In one embodiment, the height of the workbench 5 of the test platform is not more than 2 / 3 of the total height of the test platform, and the width is not more than 3 / 5 of the total width of the test platform, which is convenient for test personnel to operate. The bottom of the test platform is equipped with 4 wheels 7, which can rotate freely to facilitate the movement of the test platform in all directions. A braking mechanism is attached, which can lock the wheels 7 by stepping on it, so that the test platform is stable and immobile. When it needs to be moved, this mechanism can be hooked up to loosen 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] Embodiment 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, such as 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 collection information, and upload the collection information to the controller 1'; the controller 1' is used to generate a working signal according to the collection 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 test device, responsible for coordinating and managing the entire test process. On the one hand, it receives the collected information uploaded by the acquisition module 3', and on the other hand, it generates corresponding working signals based on the collected information and sends them to the interface module 2'. At the same time, the controller 1' also receives the execution results fed back by the system under test through the interface module 2' to determine whether the system under test is working normally.

[0067] In one embodiment, the controller 1' is a microcontroller 1' or an industrial control computer with data processing capability and logic judgment function, and a specific test program runs inside, which 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) controller, including a central processing unit (CPU), an IO (In / Out) module and a communication module. The test management software uses PLC as the control core, reads the analog or digital quantity of the system to be tested, 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 to be tested to test the control loop action of the system to be tested. After the test is completed, the test results are saved in the database, and the corresponding test results can also be printed out through the report subsystem.

[0069] The interface module 2' acts as a connecting bridge, one end of which is connected to the controller 1', and the other end of which is connected to the control module in the system under test. The main function is to realize signal transmission, accurately transmit the working signal generated by the controller 1' to the system under test, so that the system under test can execute the corresponding working mode according to the received working signal. At the same time, it is also responsible for uploading the execution results generated after the system under test executes the working 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 that data can be smoothly transmitted between the two. In one embodiment, the interface module 2' is a plug-in terminal block to achieve circuit connection between the test device and the system under test.

[0071] The acquisition module 3' is mainly responsible for data collection of the working state of the system to be tested. The acquisition module 3' establishes a connection with the sensors on the system to be tested, and can comprehensively collect the real-time working state of the system to be tested according to the physical quantities (such as temperature, pressure, current, voltage, etc.) monitored by different sensors, thereby obtaining the collected information. Then, the collected information is uploaded to the controller 1' to provide a basis for the controller 1' to generate a working signal.

[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 value and current value when the motor is running, 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 platform body of the test platform in Example 1, and the layout is divided into five layers, with a wire trough installed in the middle of each layer, and wire troughs are also installed on the left and right sides of the mounting plate. The first layer is installed with a PLC controller, which serves as the control and operation center of the entire test platform, is used for the logic control and operation of the entire circuit, completes the collection of test data, receives host computer instructions through Ethernet communication, and sends test results to the host computer.

[0074] The second layer is equipped with DC regulated power supply, circuit breakers and fuses for each power supply circuit. The DC regulated power supply is used to provide the required DC24V power supply to each PLC module and the lower modules. The circuit breaker mainly includes the circuit master switch of the test platform, the switches of each test circuit, and the switches of PLC and DC regulated power supply. The respective switches are used for on-off control of each circuit and overload and short-circuit protection. The fuse is used for short-circuit protection of 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 to be tested to complete the signal acquisition of the system to be tested; the fifth layer is installed with test plugs and terminal blocks for signal transmission between the test platform and the system to be tested.

[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 the 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 function 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 function detection system includes data acquisition module, data issuance module, user management module, real-time monitoring module and 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 fault handling help module.

[0079] Based on the combination of the above-mentioned software and hardware, various tests can be carried out on the system to be tested and the corresponding test results can be output. Tests can be carried out according to different test requirements of different types of systems to be tested, and it has 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 of different types of LCU control systems, with fast data processing speed, accurate test results and high test efficiency.

[0080] Embodiment 3:

[0081] To further illustrate the test device, in one embodiment, a test method for an LCU control system is proposed in this embodiment, such as Figure 6 As shown, including:

[0082] Step 101: 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'.

[0083] During the operation of the system to be tested, the acquisition module 3' will monitor and collect the working status of the system to be tested in real time based on the various sensors connected to it. Different sensors are responsible for monitoring different aspects of physical quantities and passing the monitored data to the acquisition module 3'. The acquisition module 3' integrates and organizes these scattered data from different sensors to form complete collection information. Then, the acquisition module 3' uploads the collection information to the controller 1' through the connection line between it 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 ′, and the system under test is used to execute a corresponding working mode according to the working signal.

[0085] After receiving the collected information uploaded by the collection module 3', the controller 1' will analyze and process the collected information according to the pre-set algorithm and logic rules to obtain the analysis results. Based on the analysis results, the controller 1' generates a corresponding working signal. The working signal is generated to allow the system under test to execute a specific working mode. The controller 1' transmits the generated working signal to the control module in the system under test through the interface module 2'.

[0086] After receiving the working signal transmitted through the interface module 2', the control module in the system to be tested will drive the various components of the system to be tested to execute the corresponding working mode according to the instruction requirements of the working signal. For example, if the working signal requires the motor to accelerate, the motor control system will adjust the motor's power supply voltage, current and other parameters to make the motor accelerate 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', and the controller 1' determines whether the system under test works normally according to the execution result.

[0088] After the system under test has executed the corresponding working mode, some execution results related to the execution will be generated. The execution results are uploaded back to the controller 1' through the interface module 2'. The controller 1' again analyzes and judges these execution results according to the pre-set judgment criteria and algorithms. If the execution results meet the expected standards for normal operation, the controller 1' will determine that the system under test is working normally; on the contrary, if the execution results are abnormal, such as values ​​outside the normal range, illogical states, etc., the controller 1' will determine that the system under test is not working properly, and may issue an alarm or give specific error prompt information.

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

[0090] Embodiment 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, and the heat dissipation system includes: 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 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 extensive use of domestic chips, instantaneous excessive power consumption often occurs. Failure of the heat dissipation system in the prior art will seriously affect the heat dissipation of related equipment and more 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 continues to cool the coolant that has absorbed heat from the load, so that it returns to a suitable low temperature state and then returns to the load for the next round of heat absorption cycle. In this process, the energy storage unit 20 in the emergency module 2 will make full use of 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), and absorb and store the excess cold. Once the cooling module 1 fails, the coolant cannot be cooled normally. At this time, the input and output ends of the cooling module 1 are closed (by setting ball valve A and ball valve B at the input and output ends of the cooling module 1 respectively), and then the emergency water pump 21 is turned on. Correspondingly, a ball valve C is provided at the front end of the emergency water pump 21, and the ball valve C is used to control the circulation of the loop in which the emergency water pump 21 is located. The emergency water pump 21 drives the coolant to circulate in a closed loop formed by the energy storage unit 20 and the pipeline flowing through the load. Since the energy storage unit 20 has stored a certain amount of cold energy, when the coolant circulates through the energy storage unit 20, the cold energy is released, thereby cooling the coolant, thereby ensuring that the load can still be effectively cooled in an emergency, maintaining the normal working state of the load, and avoiding equipment damage due to insufficient heat dissipation.

[0093] In one embodiment, the energy storage unit 20 has multiple functions in the heat dissipation device: absorbing cold when the load is low power, releasing cold when the load is high power, and cooperating with the emergency water pump 21 for emergency heat dissipation after the cooling module 1 fails. Among them, releasing cold when the load is high power and cooperating with the emergency water pump 21 for emergency heat dissipation after the cooling module 1 fails can be performed simultaneously or separately, that is, the cold can be released after the cooling module 1 fails and the emergency water pump 21 can be cooperated for emergency heat dissipation, or the cooling module 1 can release cold in the normal working state to relieve the working pressure of the cooling module 1 and reduce energy consumption, etc. For specific descriptions, please refer to the following embodiments.

[0094] In order to absorb the cold in the coolant in advance and release the cold 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 the heat in the coolant to the energy storage material 202; when the load thermal power consumption is lower than or equal to the preset threshold, the energy storage unit 20 is used to store the 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 the heat in the coolant.

[0095] First, from a structural point of view, the heat exchange cold plate 200 is a key component for heat transfer, and its input end is connected to the output end of the cooling module 1, so that the coolant output from the cooling module 1 can flow into the heat exchange cold plate 200. When the coolant flows through the heat exchange cold plate 200, since the heat exchange cold plate 200 has good thermal conductivity, the heat in the coolant begins to be transferred to the heat exchange cold plate 200. The heat transfer fins 201 provided on the heat exchange cold plate 200 further enhance the heat conduction effect. The presence of the heat transfer fins 201 increases the heat exchange area, so that the heat in the heat exchange cold plate 200 can 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. The cover plate 203 covering the energy storage material 202 plays a protective role, preventing external factors from interfering with the energy storage material 202, and ensuring that it can stably perform the function of heat storage. In one embodiment, the energy storage material 202 can be water or eutectic salt. Under different load thermal power consumption conditions, the working mode of the energy storage unit 20 is also different. When the load thermal power consumption is lower than or equal to the preset threshold, it means that the heat generated by the load at this time is relatively small, and the temperature of the coolant after cooling by the cooling module 1 may be too low, and there is excess cold. At this time, the energy storage unit 20 will play its function of storing cold, and the excess cold in the coolant will be transferred to the energy storage material 202 for storage through the heat exchange cold plate 200, the heat transfer fin 201 and other components, so that the temperature of the coolant can be maintained at a more suitable level, avoiding the adverse effects of the coolant temperature on the entire heat dissipation system and the load.

[0097] When the thermal power consumption of the load is greater than the preset threshold, the large amount of heat generated by the load will cause the coolant to absorb more heat, resulting in a trend of increasing the coolant temperature. In this case, the cold previously stored in the energy storage unit 20 will come into play. Through the reverse heat transfer effect of the heat exchange cold plate 200, the heat transfer fins 201 and other components, the cold stored in the energy storage material 202 is transferred back to the coolant, thereby ensuring the stability of the coolant temperature, so that the heat dissipation device can continue to effectively dissipate heat for the load and maintain the normal operation of the load.

[0098] For example, some high-precision electronic chips are more sensitive to temperature changes, and too much cold energy may cause the chip performance to deteriorate. By storing excess cold energy 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 operation state, such as when the 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 cold energy 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 and 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 , 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, the working 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 the emergency heat dissipation can be maintained according to 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, the control system can determine the progress and status of the cold 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 storage may be close to the saturation state, and 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 emergency situation where the cooling module 1 fails, since the energy storage unit 20 needs to use the stored cold to provide heat dissipation guarantee 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 rises 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 too long emergency heat dissipation time. At this time, the control system can evaluate the time that the emergency heat dissipation can be maintained based on the data of 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, so as to ensure 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, Fig. 9 As shown, 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; the circulation ball valve 101 is arranged between the output end of the circulation water pump 100 and the input end of the energy storage unit 20, and the input end of the circulation water pump 100 is connected to the other end of the pipeline flowing through the load; by opening the circulation ball valve 101 and the corresponding circulation water pump 100, the coolant circulates in the pipeline.

[0104] The circulating water pump 100 serves as a power source for the circulation of the coolant, and its input end is connected to the other end of the pipeline flowing through the load. When the load is running, the coolant will flow out of the pipeline flowing through the load and enter the input end of the circulating water pump 100. After the circulating water pump 100 is powered on and started, a certain pressure will be generated, causing the coolant to be sucked in from its input end, and through the action of the impeller and other components inside the water pump, the coolant is pushed out from the output end at a certain pressure and flow rate.

[0105] The circulation ball valve 101 controls 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 circulation 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 circulation 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 circulation water pump 100, and then smoothly enters the energy storage unit 20 through the control of the circulation ball valve 101. After heat exchange and other operations (such as transferring heat to the energy storage material 202, etc.) are performed in the energy storage unit 20, 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 circulating ball valve 101 and selecting to start different numbers or different powers of circulating water pumps 100, the flow rate and flow velocity of the coolant can be flexibly controlled. Multiple pairs of circulating water pumps 100 and circulating ball valves 101 can be provided. Fig. 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 heat power consumption is large, the opening of the circulation ball valve 101 can be appropriately increased and the circulating water pump 100 with a larger power can be started, so that the coolant can circulate in the system at a faster speed and a larger flow rate, thereby more efficiently taking away the heat generated by the load and ensuring the heat dissipation effect; conversely, when the load heat power consumption is small, the opening of the circulation ball valve 101 can be correspondingly reduced and a circulating water pump 100 with a smaller power can be selected, which can not only meet the heat dissipation requirements, but also 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 cooling liquid flowing through the load, namely, an external water cooling mode and a refrigeration mode. Next, the structures in the two modes and their respective working states will be specifically described.

[0109] Among them, in the external water cooling mode: in order to cool the coolant in the circulation pipeline, in one embodiment, Fig.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 is used as the power source of the entire external water cooling unit 11 and is arranged in the liquid supply pool. When the external water pump 111 is started, external water (usually ordinary water as a cooling medium) is extracted from the liquid supply pool and pushed to the input end of the plate heat exchanger 110 at a certain pressure. The liquid supply pool can be replaced with sea water or river water. The plate heat exchanger 110 contains many separated channels inside, so that different fluids (referring to the extracted external water and the coolant flowing through the load) can 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. Normally, the temperature of the external water is relatively low (because it comes from the liquid supply pool, and new external water is constantly added 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 by fully exchanging heat with the external water, thereby reducing its own temperature.

[0112] 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.

[0113] In one embodiment, by reasonably 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 in the plate heat exchanger 110. For example, when the load heat power consumption is large and the temperature of the coolant rises rapidly, the power of the external water pump 111 can be appropriately increased to increase the flow rate and flow velocity of the external water, so that heat exchange can be performed more quickly and fully in the plate heat exchanger 110, and the temperature of the coolant can be reduced more efficiently; conversely, when the load heat power consumption is small and the temperature of the coolant rises less, the power of the external water pump 111 can be appropriately reduced to save energy while ensuring the cooling effect of the coolant.

[0114] In the 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, refer to Fig.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; the evaporator 120 is provided with a liquid refrigerant, 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, and the liquefied and cooled liquid refrigerant returns to the evaporator 120 for circulation.

[0116] Among them, after 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 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 to the tubular heat exchanger 112 and the plate heat exchanger 110 separately. In order to save energy consumption, this embodiment adopts the same water supply structure.

[0117] The coolant flowing through the pipeline of the load 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, and 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, so that the liquid refrigerant will absorb a large amount of heat and then change 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 from the output end of the condenser 121, and the pipeline first flows through the tubular heat exchanger 112. At this time, the temperature of the liquid refrigerant is still relatively high, and heat is exchanged again with the external water in the tubular heat exchanger 112. Through the heat exchange with the external water, the temperature of the liquid refrigerant will be further reduced, making it more suitable to return to the evaporator 120 to participate in the cooling cycle of the coolant again.

[0119] The liquid refrigerant cooled by the tubular heat exchanger 112 will flow out from its output end, and then return to the liquid inlet end of the evaporator 120 along the connecting pipe, and participate in the entire refrigeration cycle again. Through the coordinated work between the evaporator 120, the condenser 121 and the tubular heat exchanger 112, the heat of the coolant flowing through the load is continuously absorbed, converted into gaseous refrigerant, and then liquefied and cooled before returning to the evaporator 120, achieving continuous and efficient cooling of the coolant to meet the heat dissipation requirements when the external water cooling unit 11 cannot meet the cooling requirements.

[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 down the liquefied refrigerant in time, thereby affecting the operation of the evaporator 120. In one embodiment, referring to Fig.10 The refrigeration unit 12 further includes an air cooler 122 , an input end of the air cooler 122 is connected to an output end of the condenser 121 , and an output end of the air cooler 122 is connected to a liquid inlet end of the evaporator 120 .

[0121] 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 high. Afterwards, the high-temperature gaseous refrigerant enters the condenser 121, and changes back to liquid in the condenser 121 through a specific condensation mechanism (such as compression and heat dissipation).

[0122] However, when it is monitored that the temperature of the refrigerant flowing back to the evaporator 120 is greater than or equal to the threshold temperature, it indicates that the tubular heat exchanger 112 cannot meet the cooling demand of the liquefied refrigerant at this time, and the liquefied refrigerant is cooled by the air cooler 122, and the cooled refrigerant flows back to the evaporator 120. The threshold temperature needs to be determined according to the current heat dissipation demand, and the specific value is not specifically limited in this embodiment. In one embodiment, the evaporator 120 has a sensor for monitoring the temperature of the refrigerant therein.

[0123] Since the refrigerant temperature is too high at this time, the heat exchange between the tubular heat exchanger 112 and the external water is not enough to quickly and effectively reduce its temperature. This is because the cooling capacity of the tubular heat exchanger 112 is limited by the external water temperature, flow rate and its own heat exchange efficiency. When this happens, the 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 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 a fan. 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 achieving the cooling of the liquefied refrigerant. The temperature of the liquefied refrigerant cooled by the air cooler 122 is reduced to a suitable 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. In this way, it is ensured that the evaporator 120 can work continuously and stably, and that the coolant can effectively transfer heat to the refrigerant in the evaporator 120, maintaining the efficient operation of the entire heat dissipation system.

[0125] In one embodiment, referring to Fig.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 Fig.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 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 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 connected to cool the coolant through the refrigeration unit 12.

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

[0128] Embodiment 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 Fig.11 As shown, the sensors in the heat dissipation system include: a load inlet temperature sensor T1, a load inlet pressure sensor P1, a load inlet flow sensor FT1, a load outlet temperature sensor T2, a load 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, and the above sensors are used to transmit signals such as temperature, flow and pressure to the acquisition module 3'.

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

[0132] After the test platform is powered on, the system is initialized, the test platform is powered by the power supply unit, the host computer is started, and the user identity verification is performed first. 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, and the test start button is clicked on the host computer interface. The command is sent through the host computer, and the signal is input to the heat dissipation system through the controller 1' via the interface module 2'. 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 judges whether this test item is normal or not, and then saves this test item information into the database. The test content is automatically performed item by item in order. In one embodiment, after all the test items are completed, click the test completion button to 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 an external water cooling mode, a cooling module liquid cooling mode, and a cooling module air cooling mode. Among them, the structure involved in the external water cooling mode includes a plate heat exchanger 110 and an external water pump 111; the working principle of the external water cooling mode specifically includes: when the external water pump 111 is started, external water (usually ordinary water as a cooling medium) is extracted from the liquid supply pool and pushed to the input end of the plate heat exchanger 110 at a certain pressure. The liquid supply pool can be replaced with seawater or river water. The plate heat exchanger 110 contains many separated channels inside, so that different fluids (referring to the extracted external water and the coolant flowing through the load) can exchange heat without mixing with each other. 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 added 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 by fully exchanging heat 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: the external water extracted by the external water pump 111 flows out from the output end and enters the tubular heat exchanger 112. In the tubular heat exchanger 112, the external water will undergo a certain degree of heat exchange 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 to the tubular heat exchanger 112 and the plate heat exchanger 110 separately. In order to save energy consumption, this embodiment adopts the same water supply structure.

[0136] The coolant flowing through the pipeline of the load 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, and 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, so that the liquid refrigerant will absorb a large amount of heat and then change 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 from the output end of the condenser 121, and the pipeline first flows through the tubular heat exchanger 112. At this time, the temperature of the liquid refrigerant is still relatively high, and heat is exchanged again with the external water in the tubular heat exchanger 112. Through the heat exchange with the external water, the temperature of the liquid refrigerant will be further reduced, making it more suitable to return to the evaporator 120 to participate in the cooling cycle of the coolant again.

[0138] The liquid refrigerant cooled by the tubular heat exchanger 112 will flow out from its output end, and then return to the liquid inlet end of the evaporator 120 along the connecting pipe, and participate in the entire refrigeration cycle again. Through the coordinated work between the evaporator 120, the condenser 121 and the tubular heat exchanger 112, the heat of the coolant flowing through the load is continuously absorbed, converted into gaseous refrigerant, and then liquefied and cooled before returning to the evaporator 120, achieving continuous and efficient cooling of the coolant to meet the heat dissipation requirements when the external water cooling unit 11 cannot meet the cooling requirements.

[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 high. Afterwards, the high-temperature gaseous refrigerant enters the condenser 121, and is converted back to liquid through a specific condensation mechanism (such as compression and heat dissipation) in the condenser 121. 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 cannot 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 flows back 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 liquid inlet temperature, load liquid inlet pressure, load liquid inlet flow, load liquid outlet temperature, load liquid 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, Fig.11 As shown, the heat dissipation system is in the external water cooling mode in the initial state. When the acquisition module 3' acquires the 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 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 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, please refer to the above description, and no further explanation is given here.

[0142] In one embodiment, the acquisition module 3' collects the 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, which indicates that the external water volume is insufficient and there is a risk of water shortage. 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, please refer to the above description, and no further explanation is given 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 an emergency situation to ensure the 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, which 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 the control module 3 in the heat dissipation system receives the corresponding working signal, it 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, shuts off ball valve A and ball valve B, and opens ball valve C and emergency water pump 21. The more specific switching process will not be described in detail here.

[0145] In one embodiment, the test platform collects the action information of the relevant water pump, compressor and valve group through the interface module 2', and transmits it to the test platform PLC, which then transmits the information to the host computer, and the host computer judges the correctness of its action through the program. By adjusting the external water temperature and flow parameters in each mode, the switching of the four working modes of the heat dissipation system, namely the external water cooling mode, the liquid cooling mode of the refrigeration module, the air cooling mode of the refrigeration module and the emergency cooling mode, can be realized, and the correctness of the action of the actuators such as the water pump, compressor and valve group in the four working modes can be further verified to further complete the test of the heat dissipation system.

[0146] For the specific structure of the testing device, please refer to Example 2 and will not be repeated 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 protection scope 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 a collection module (3'), wherein the controller (1') is connected to the interface module (2'), the interface module (2') is connected to a control module in the system to be tested, and the collection 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 state 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; 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 determine whether the system under test is working normally according to 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 state 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 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 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 according to 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 end and the output end 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), 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 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, 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), wherein 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 a pipeline flowing through a 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), wherein the refrigeration unit (12) comprises 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 at 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 an input end of the air cooler (122) is connected to an output end of the condenser (121), and an output end of the air cooler (122) is connected to a liquid inlet end of the evaporator (120); When it is monitored that the temperature of the refrigerant returning 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 into 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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