Control device, method and equipment for cooling liquid of charging cable

Abstract

The invention discloses a control device, method and equipment for cooling liquid of a charging cable, and belongs to the technical field of electric power facilities. The device comprises an information acquisition module used for acquiring state information of a charging cable; wherein the state information comprises a working state and / or a real-time temperature; the cooling liquid control module is used for controlling the cooling liquid in the charging cable to actively circulate in the cooling pipe under the condition that the state information meets a preset condition; and the cooling node control module is used for controlling a preset cooling node of the charging cable to work so as to carry out auxiliary cooling operation on the cooling liquid of the charging cable at the preset cooling node. According to the technical scheme, through control of the cooling liquid and auxiliary cooling of the cooling nodes, the rapid heat dissipation effect can be achieved in the working process of the charging cable, and the problems that the aging speed of an insulating layer is increased, and use safety is affected due to excessive heat generated in the working process of the charging cable are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power facilities, and specifically relates to a control device, method and equipment for charging cable coolant. Background Art

[0002] With the rapid development of science and technology, the number of new energy vehicles has increased dramatically in a few years, and the demand for vehicle charging is also increasing.

[0003] The charging cables used in the vehicle charging process are often installed in open-air parking lots, which are affected by environmental factors with a large temperature variation range. In addition, the cables are usually operated by users. Therefore, once the charging cables leak electricity, it will have a great impact on the user's safety and the vehicle's battery safety. As for the insulation layer of the charging cable, as the power increases during the charging process, the heat generated will also increase, causing the charging cable itself to overheat, which will dramatically increase the aging rate of the insulation layer of the charging cable. Therefore, how to effectively control the heat generated by the charging cable is a prerequisite for affecting the service life and safety of the charging cable. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a device, method and equipment for controlling the cooling liquid of a charging cable, so as to solve the problem that the insulation layer of the charging cable ages quickly due to heat generation, which poses a safety hazard in use.

[0005] In a first aspect, an embodiment of the present application provides a device for controlling a charging cable coolant, the device comprising:

[0006] An information acquisition module, used to acquire status information of the charging cable; wherein the status information includes working status and / or real-time temperature;

[0007] a coolant control module, configured to control the coolant in the charging cable to actively circulate in the cooling pipe when the state information satisfies a preset condition;

[0008] The cooling node control module is used to control the preset cooling node of the charging cable to operate so as to perform an auxiliary cooling operation on the coolant of the charging cable at the preset cooling node.

[0009] Furthermore, the cooling node is provided with a blowing device and / or a spraying device;

[0010] The cooling node control module is specifically used for:

[0011] The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

[0012] Furthermore, the device also includes:

[0013] a control parameter determination module, configured to determine a control parameter of the cooling node according to the state information of the charging cable;

[0014] The cooling node control module is further specifically used for:

[0015] According to the control parameter, the working state of each preset cooling node is determined to be one of the following three states: not working, working at a first power, and working at a second power.

[0016] Furthermore, the device also includes:

[0017] The insulation layer abnormality identification module includes a leakage detection device, which is arranged corresponding to the cooling node in which the spraying device is arranged in the cooling node, and is used to perform leakage abnormality detection on the cable insulation layer after the spraying operation.

[0018] Furthermore, the coolant control module is also used for:

[0019] After controlling the coolant in the charging cable to actively circulate in the cooling pipe, identifying whether the cooling pipe is blocked;

[0020] In the event of congestion, the coolant in the spare cooling pipe is controlled to circulate actively, and a prompt message of cooling pipe congestion is generated.

[0021] Furthermore, the coolant control module is specifically used for:

[0022] After controlling the coolant inside the charging cable to actively circulate inside the cooling pipe, obtaining the real-time temperature of the charging cable at each monitoring position;

[0023] When the temperature difference between the real-time temperatures at the respective monitoring positions exceeds a first set threshold, determining that the cooling pipe is congested;

[0024] or,

[0025] When the difference between the real-time temperature at each monitoring position and the real-time temperature before controlling the active circulation of the coolant is lower than a second set threshold, it is determined that the cooling pipe is congested.

[0026] Furthermore, the device also includes:

[0027] A cooling effect prompt module is used to obtain the real-time temperature of each monitoring position after starting the cooling control, generate a charging cable temperature distribution model according to the real-time temperature, display the real-time temperature of each monitoring position on the charging cable temperature distribution model, and determine the cooling effect of the charging cable based on the high temperature distribution position and high temperature occupied length in the temperature distribution model.

[0028] In a second aspect, an embodiment of the present application provides a method for controlling a charging cable coolant, the method comprising:

[0029] Acquiring status information of the charging cable; wherein the status information includes working status and / or real-time temperature;

[0030] When the state information satisfies a preset condition, controlling the coolant inside the charging cable to actively circulate inside the cooling pipe;

[0031] A preset cooling node of the charging cable is controlled to operate so as to perform a subsidiary cooling operation on the coolant of the charging cable at the preset cooling node.

[0032] Furthermore, the cooling node is provided with a blowing device and / or a spraying device;

[0033] Controlling a preset cooling node of the charging cable to operate, including:

[0034] The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

[0035] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0036] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0037] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0038] In the embodiment of the present application, the information acquisition module is used to obtain the status information of the charging cable; wherein the status information includes the working status and / or the real-time temperature; the coolant control module is used to control the coolant inside the charging cable to actively circulate inside the cooling tube when the status information meets the preset conditions; the cooling node control module is used to control the preset cooling node of the charging cable to operate, so as to perform auxiliary cooling operation on the coolant of the charging cable at the preset cooling node. The above technical scheme can achieve the effect of rapid heat dissipation during the operation of the charging cable through the control of the coolant and the auxiliary cooling of the cooling node, avoiding the problem of accelerated aging of the insulation layer caused by excessive heat generation during the operation of the charging cable, affecting the safety of use, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the structure of a control device for a charging cable coolant provided in Embodiment 1 of the present application;

[0040] Figure 2 is a flow chart of a method for controlling a charging cable coolant provided in Embodiment 2 of the present application;

[0041] Figure 3 It is a schematic diagram of the structure of the electronic device provided in Example 3 of the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0044] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0045] In the following, in conjunction with the accompanying drawings, the control device, method and equipment for the charging cable coolant provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0046] Embodiment 1

[0047] Figure 1 It is a structural schematic diagram of a control device for a charging cable coolant provided in Example 1 of the present application.

[0048] like Figure 1 As shown, the device comprises:

[0049] The information acquisition module 110 is used to acquire status information of the charging cable; wherein the status information includes working status and / or real-time temperature;

[0050] a coolant control module 120, configured to control the coolant in the charging cable to actively circulate in the cooling pipe when the state information satisfies a preset condition;

[0051] The cooling node control module 130 is used to control the preset cooling node of the charging cable to operate so as to perform a subsidiary cooling operation on the coolant of the charging cable at the preset cooling node.

[0052] The information acquisition module 110 can obtain various aspects of the performance of the charging cable through sensors and other devices, such as whether it is in charging state, real-time temperature, etc. The working state can be understood as whether the charging cable is currently in charging state, idle waiting for charging, or in other different working-related situations such as failure.

[0053] The coolant control module 120 may be a module for controlling the flow of the coolant, and its function is to determine whether the coolant is in a static state or a flowing state in the cooling pipe. It is understandable that the heat inside the charging cable can be taken out through the flow of the coolant, which is beneficial to the heat dissipation of the charging cable.

[0054] When the state information meets the preset conditions, the preset conditions may be some standards or thresholds set in advance. For example, when the real-time temperature transmitted by the information acquisition module reaches a certain set high temperature value (such as 60°C), or the working status shows that the cable is in a high-load charging working state for a long time, once the acquired state information meets the preset conditions, the coolant can be actively circulated, specifically, by pumping.

[0055] At this time, the coolant starts to flow actively in the cooling tube inside the charging cable, forming a cycle to take away the heat. The coolant circulation here is also to take away the heat generated by the charging cable and maintain the normal working temperature of the cable.

[0056] It should be noted that the cooling pipe here can form one or more loops inside the charging cable, for example, forming an inlet pipe and a return pipe along the charging cable, and the inlet pipe and the return pipe can be closed at the end of the charging cable to form a loop. In addition, this can also be used as the main loop to form a small loop at some locations that are prone to heat generation, such as the splicing location of the wire core, to facilitate heat transfer to the location where more heat is generated, and avoid the situation where the local temperature is too high.

[0057] The cooling node control module 130 can be used to manage some key positions in the cooling process, or positions convenient for installing auxiliary equipment, so as to perform auxiliary cooling.

[0058] The preset cooling node of the charging cable is controlled to operate, and secondary heat dissipation processing can be performed at the cooling node.

[0059] By performing a supplementary cooling operation on the coolant of the charging cable at the preset cooling node, additional measures can be taken to further cool the coolant. For example, an air-cooled radiator is provided at the cooling node. When the coolant flows through here, the air-cooled radiator takes away more heat from the coolant by means of a fan blowing, etc., so that the temperature of the coolant can be lowered, thereby better helping to cool the charging cable and improving the efficiency of the entire cooling system.

[0060] On the basis of the above technical solution, optionally, the device further includes:

[0061] A cooling effect prompt module is used to obtain the real-time temperature of each monitoring position after starting the cooling control, generate a charging cable temperature distribution model according to the real-time temperature, display the real-time temperature of each monitoring position on the charging cable temperature distribution model, and determine the cooling effect of the charging cable based on the high temperature distribution position and high temperature occupied length in the temperature distribution model.

[0062] Among them, the charging cable temperature distribution model can be a model built based on mathematical and graphical representation methods, which is used to intuitively present the temperature conditions at different positions of the charging cable.

[0063] The high temperature distribution position may be the location information of the area with relatively high temperature in the temperature distribution model, such as the specific position at one end of the cable close to the charging port or in the middle of the cable.

[0064] The high temperature occupied length can be the distance occupied by the higher temperature area along the length of the cable in the temperature distribution model. This indicator can be used to intuitively understand the size of the high temperature area and then judge the severity of the heat accumulation.

[0065] After obtaining the real-time temperature of each monitoring position, the algorithm and data processing unit inside the module will use these temperature data and the known relative coordinate information of each monitoring position on the cable to map the temperature data to the corresponding cable position in a visual form to construct a charging cable temperature distribution model. For example, a two-dimensional or three-dimensional graphic representation can be used to mark the temperature point corresponding to each monitoring position to form a graphic model that can intuitively display the overall temperature distribution of the cable.

[0066] This scheme is set up in this way, so that the specific temperature conditions of each monitoring point can be directly seen, and the information display effect of the model can be enhanced. For example, the specific temperature value can be displayed next to each temperature point on the model or in the form of a floating window, so as to facilitate accurate temperature comparison and analysis. The generated temperature distribution model can be analyzed by using pre-set evaluation rules to judge the cooling effect. For example, if the high temperature distribution position is concentrated in some conventional heat-prone parts of the cable, but the high temperature occupies a short length, and the maximum temperature of the entire cable is within an acceptable range, then the cooling effect can be considered to be basically good; on the contrary, if the high temperature distribution position is relatively scattered, the high temperature occupies a long length, or there is a situation where the local temperature is too high, then it means that the cooling effect is not good, and there may be problems such as poor circulation of coolant and abnormal operation of cooling nodes, which require further investigation and improvement of related links of the cooling system.

[0067] Through such a setting, this scheme uses the key information in the temperature distribution model to comprehensively evaluate the cooling effect of the charging cable.

[0068] The technical solution provided in this embodiment includes an information acquisition module for acquiring the status information of the charging cable; wherein the status information includes the working status and / or the real-time temperature; a coolant control module for controlling the coolant inside the charging cable to actively circulate inside the cooling tube when the status information meets the preset conditions; and a cooling node control module for controlling the preset cooling node of the charging cable to operate so as to perform auxiliary cooling operations on the coolant of the charging cable at the preset cooling node. The above technical solution can achieve the effect of rapid heat dissipation during the operation of the charging cable through the control of the coolant and the auxiliary cooling of the cooling node, thereby avoiding the problems such as accelerated aging of the insulation layer caused by excessive heat generation during the operation of the charging cable, which affects the safety of use.

[0069] In the above embodiment, optionally, the cooling node is provided with a blowing device and / or a spraying device;

[0070] The cooling node control module is specifically used for:

[0071] The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

[0072] In the cooling system of the charging cable, there can be specific locations that are pre-planned and set up. These locations play an important role in providing additional cooling treatment to the coolant and enhancing the effect of the entire cooling system. The coolant can be further cooled when it flows through these locations, thereby more effectively removing the heat generated by the charging cable.

[0073] The blowing device can be a device that can generate airflow, such as a common fan. The motor drives the blades to rotate, causing air to flow and form wind, which can take away heat from the surface of the cooled object to achieve the purpose of cooling. In this scenario, it is used to blow air towards the cooling pipe to speed up the heat dissipation of the coolant.

[0074] Spraying equipment is a device that can release liquid, usually water or special coolant, in the form of spraying. It generally includes a nozzle, a liquid supply pipeline, and related components that control the liquid flow rate and spraying range. For example, a common spray nozzle disperses liquids such as water into fine droplets through internal pressure and sprays them out, using the principle of liquid evaporation and heat absorption to help cool down.

[0075] Install and configure the blowing equipment and / or spraying equipment. During the actual construction of the charging cable cooling system, the engineering staff will fix the blowing equipment at the appropriate node position according to the overall design requirements of the cooling system. For example, the fan should be installed on the corresponding bracket so that its air outlet faces the cooling pipe of the charging cable to ensure that the blown wind can effectively act on the cooling pipe. For the spraying equipment, the liquid supply pipeline should be connected to ensure that the installation angle and height of the nozzle are appropriate so that the liquid can be evenly sprayed on the cooling pipe of the charging cable, thereby making hardware preparations for the subsequent auxiliary cooling operation of the coolant.

[0076] The cooling node control module is specifically used to control the blowing device and / or the spraying device to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

[0077] The cooling node control module can be one of the core control parts in the entire cooling system. It is responsible for coordinating and directing the work of related equipment on each cooling node, and deciding whether these devices should be started and at what intensity according to different situations, so as to achieve effective auxiliary cooling of the coolant and ensure the smooth operation of the entire charging cable cooling system.

[0078] Specifically, the cooling node control module receives status information from the information acquisition module, such as the real-time temperature and working status of the charging cable, and compares and analyzes it with the pre-set control logic and parameters. When it is determined that auxiliary cooling is required, it will send control instructions to the blowing equipment and / or spraying equipment on the corresponding cooling node.

[0079] For the blowing device, after receiving the control command, the motor starts to run and drives the fan blades to rotate, generating airflow to blow toward the cooling pipe. The control module can adjust the speed of the motor according to actual needs. For example, when the temperature of the charging cable is high and needs to be cooled quickly, the motor speed is increased, the air volume is increased, and more air flows quickly through the surface of the cooling pipe, speeding up the heat exchange speed between the coolant and the air, so that the heat in the coolant can be dissipated into the air faster to achieve cooling. After receiving the command, the spraying device opens the liquid supply valve so that the liquid is sprayed onto the cooling pipe through the nozzle under pressure. The control module can also adjust the spray flow rate, spraying time interval, etc. For example, in a high temperature environment, the spray liquid flow rate is appropriately increased to allow more liquid to participate in the evaporation heat absorption process, or the spraying interval time is shortened to continuously cool the coolant. Moreover, the control module can choose whether to start only the blowing device for blowing operation, or only start the spraying device for spraying operation, or start both at the same time, according to the specific situation, so as to flexibly perform auxiliary cooling operations on the coolant inside the cooling pipe to ensure that the charging cable can operate stably within the appropriate temperature range.

[0080] On the basis of the above technical solutions, optionally, the device further includes:

[0081] a control parameter determination module, configured to determine a control parameter of the cooling node according to the state information of the charging cable;

[0082] The cooling node control module is further specifically used for:

[0083] According to the control parameter, the working state of each preset cooling node is determined to be one of the following three states: not working, working at a first power, and working at a second power.

[0084] The control parameter determination module can generate specific control parameter tasks based on relevant information, providing a basis for subsequent precise regulation of cooling nodes.

[0085] The status information of the charging cable is the relevant information about the charging cable collected by the previous information acquisition module, including the working status of the charging cable, such as charging, idle waiting for charging, etc., as well as real-time temperature and other contents. It is important basic data for judging cooling requirements and determining control parameters.

[0086] Control parameters can be a series of specific indicator settings used to guide how the equipment on the cooling node works, such as the power corresponding to the wind speed level of the blowing equipment, the liquid spray flow rate of the spraying equipment, the working time and other parameters. Different combinations of control parameters determine the specific working mode and intensity of the cooling node to adapt to different temperatures and working conditions of the charging cable.

[0087] The control parameter determination module uses the status information of the charging cable as input and performs corresponding analysis and calculation. For example, when the status information shows that the real-time temperature of the charging cable is in a relatively low normal range and the working state is idle waiting for charging, the algorithm inside the module will determine a set of relatively conservative control parameters based on preset rules. These rules can be corresponding relationships summarized after a large number of experiments and actual operation experience. The blowing device can be set to a low-power state corresponding to low wind speed or simply not started, and the spraying device can suspend the spraying operation. If the status information indicates that the temperature of the charging cable is high and it is in a high-load charging working state, the module will determine the control parameters that can enable the cooling node device to work at a higher intensity based on the rules, such as increasing the power of the blowing device to a gear that can produce a higher wind speed, setting the spraying device to open and spraying at a larger liquid flow rate, etc. In this way, the appropriate cooling node control parameters are dynamically determined according to the real-time status information of the charging cable.

[0088] The cooling node control module is further specifically used to determine, according to the control parameter, that the working state of each preset cooling node is one of the following three: not working, working at the first power, and working at the second power.

[0089] The cooling node control module can adjust the actual operating status of the cooling node device according to the different instructions and parameters received.

[0090] The first power and the second power can be two pre-set power values ​​of different intensity levels, which are used to characterize the different intensity levels of the equipment working on the cooling node, such as the power corresponding to different motor speeds of the blowing equipment, the power corresponding to different flow rates of the spraying equipment, etc. The first power can be a lower intensity working power relative to the second power. Their specific values ​​will be determined according to the actual equipment performance and the overall requirements of the cooling system, and are used to allow the cooling node equipment to work at an appropriate intensity under different cooling demand scenarios.

[0091] The process by which the cooling node control module makes decisions based on the specific control parameters transmitted from the control parameter determination module. After receiving the control parameters, the logic judgment unit in the module will parse these parameters. For example, if the wind speed setting value of the blowing device for a certain cooling node in the control parameters corresponds to zero, and the flow setting value of the spraying device is also zero, then the cooling node control module will determine that the working state of the cooling node is "not working", that is, it will not send a start instruction to the corresponding blowing device and spraying device, so that it is in a closed state. If the control parameter indicates that the power value corresponding to the blowing device is the first power-related setting value, and the spraying device is in a closed state, then the module will send instructions to the blowing device of the cooling node according to this parameter, so that it starts to run according to the working states such as the rotation speed and air volume corresponding to the first power, so as to achieve a relatively weak intensity cooling operation. When the power value corresponding to the blowing device and / or spraying device in the control parameter is the second power-related set value, the cooling node control module will command the corresponding equipment to start working according to the intensity level corresponding to the second power, such as allowing the blowing device to produce a larger air volume at a higher speed, or allowing the spraying equipment to spray at a larger flow rate, to achieve more powerful auxiliary cooling operation, so as to flexibly respond to different temperatures and working conditions of the charging cable and ensure the effective operation of the cooling system.

[0092] Through such a setting, this solution can more reasonably control each cooling node, improve the temperature control effect of the charging cable, and avoid excessive use of functions.

[0093] On the basis of the above technical solutions, optionally, the device further includes:

[0094] The insulation layer abnormality identification module includes a leakage detection device, which is arranged corresponding to the cooling node in which the spraying device is arranged in the cooling node, and is used to perform leakage abnormality detection on the cable insulation layer after the spraying operation.

[0095] Among them, leakage detection equipment can be an important part of the insulation layer abnormality identification module, and is an instrument that can detect whether there is leakage in the circuit. Common types of leakage detection devices designed based on electromagnetic induction principles, residual current detection principles, etc. have high-precision current detection capabilities and sensitive leakage alarm functions.

[0096] The leakage abnormality detection can detect whether the insulation performance of the cable's insulation layer has deteriorated due to being soaked or penetrated by the spraying liquid after the spraying operation, thereby causing abnormal current leakage. Through relevant detection methods, this possible leakage hazard can be discovered in time to ensure the safe use of the cable.

[0097] In this solution, the layout of the leakage detection equipment, that is, the installation position of the leakage detection equipment can be set corresponding to the cooling node of the spraying equipment to ensure that the cable insulation layer area that may be affected by the spraying operation can be accurately detected. For example, near each cooling node with a spraying device, the leakage detection equipment is fixed on a suitable bracket or installed at a specific position on the protective casing of the cable, so that its detection probe and other sensing components can effectively contact or approach the surface of the cable insulation layer.

[0098] Through such a setting, when the present scheme detects a weak current leakage beyond the normal range, it can be determined that the insulation layer may be damaged or damp due to the influence of the spraying liquid, resulting in a decrease in insulation performance. The leakage detection equipment will promptly issue an abnormal leakage alarm signal and transmit the signal to the relevant control system or operation and maintenance personnel so that corresponding countermeasures can be taken, such as suspending the spraying operation, drying the insulation layer, or further troubleshooting the insulation layer fault, thereby ensuring the electrical safety of the cable during the cooling process and avoiding safety accidents caused by leakage.

[0099] On the basis of the above technical solutions, optionally, the coolant control module is further used for:

[0100] After controlling the coolant in the charging cable to actively circulate in the cooling pipe, identifying whether the cooling pipe is blocked;

[0101] In the event of congestion, the coolant in the spare cooling pipe is controlled to circulate actively, and a prompt message of cooling pipe congestion is generated.

[0102] The cooling pipe is a pipe installed inside the charging cable to contain and guide the flow of coolant. The coolant circulates in it and exchanges heat with the heating parts of the cable to achieve the effect of cooling the cable. The diameter, material, layout and other factors of the cooling pipe will affect the flow of coolant and the heat dissipation effect.

[0103] There is something going on inside the cooling pipe that is hindering the normal and smooth flow of the coolant. This may be due to the accumulation of impurities in the pipe, such as sediment produced by long-term use of the coolant, foreign matter mixed in from the outside, local deformation of the pipe, accumulation of bubbles inside, etc., which causes the coolant to be unable to circulate in the cooling pipe at a normal speed and flow rate, thus affecting the cooling effect.

[0104] This solution can determine whether the cooling pipe is in a congested state through detection means and related technologies. For example, by installing flow sensors at different positions of the cooling pipe, the flow of coolant in each section of the pipe can be monitored in real time. Under normal circumstances, the flow at different positions in the same circulation loop should remain relatively stable. If the flow at a certain point is significantly lower than the normal set value, and other related influencing factors have not changed, it is possible that the cooling pipe in this section is congested. Pressure sensors can also be used. Because the coolant encounters blockage during the flow process, the pressure before and after the blockage point will change significantly, such as the pressure in front of the blockage point increases and the pressure behind the blockage point decreases. The presence of congestion can be determined by monitoring the pressure difference. In addition, acoustic detection methods can also be used. When the coolant flows in a normal flow pipe and in a pipe with a blockage, the sound characteristics generated will be different. The sound signal collected and analyzed by the acoustic sensor can also assist in determining whether the cooling pipe is congested. Through these or other similar technical means, the coolant control module can accurately identify whether the cooling pipe is congested.

[0105] In the event of congestion, the coolant in the spare cooling pipe is controlled to circulate actively, and a prompt message of cooling pipe congestion is generated.

[0106] The spare cooling pipe can be an additional cooling pipe pre-installed in the charging cable cooling system. When the cooling pipe in normal use fails to work normally due to a fault such as congestion, the spare cooling pipe can be put into use in time to ensure that the coolant can still circulate normally, maintain the cooling function of the charging cable, and avoid the cable temperature being too high due to the cooling pipe failure and affecting normal operation.

[0107] The prompt information can be used to inform about abnormal situations of cooling pipe congestion. It can include which specific cooling pipe is congested and the approximate degree of congestion, such as mild, moderate, severe, etc. It can be comprehensively judged based on the detected flow, pressure and other data, and other information, so as to take corresponding maintenance, cleaning and other treatment measures in time.

[0108] The prompt information can be sent to relevant operation and maintenance management systems, mobile devices of operation and maintenance personnel, etc. in accordance with pre-set formats and content requirements through wired or wireless methods, such as through wireless communication protocols such as Bluetooth, Wi-Fi, ZigBee, etc., so that abnormal conditions of cooling pipes can be known in time, and personnel can be arranged as soon as possible to perform maintenance work such as unblocking and cleaning the congested cooling pipes.

[0109] Through such a setting, this solution can ensure the stable operation of the entire charging cable cooling system.

[0110] On the basis of the above technical solution, optionally, the coolant control module is specifically used for:

[0111] After controlling the coolant inside the charging cable to actively circulate inside the cooling pipe, obtaining the real-time temperature of the charging cable at each monitoring position;

[0112] When the temperature difference between the real-time temperatures at the respective monitoring positions exceeds a first set threshold, determining that the cooling pipe is congested;

[0113] or,

[0114] When the difference between the real-time temperature at each monitoring position and the real-time temperature before controlling the active circulation of the coolant is lower than a second set threshold, it is determined that the cooling pipe is congested.

[0115] The monitoring locations may be specific locations on the charging cable that are selected in advance and where temperature monitoring devices are installed. For example, monitoring locations may be installed at key areas such as the connection parts of the cable that are prone to heating, the middle and both ends of a long cable section, etc., so as to fully and specifically understand the temperature status of different parts of the cable.

[0116] The real-time temperature may be the temperature value actually measured by the temperature sensors installed at each monitoring location at the current moment.

[0117] The temperature difference can be the difference between the real-time temperatures obtained at different monitoring positions. By comparing the temperature differences at each monitoring position, it can be understood whether the temperature distribution at different parts of the charging cable is uniform, and then it can be determined whether the cooling effect is normal.

[0118] The first set threshold value can be a pre-set temperature difference limit value, which is based on the reasonable range of temperature distribution of different parts of the charging cable during normal operation, the maximum temperature difference allowed under normal working conditions of the cooling system, and other factors, and is summarized through a large number of experiments, simulations, and actual operation experience. For example, according to past experience, under normal circumstances, the temperature difference of key parts of the charging cable should be within 5°C, so this 5°C can be set as the first set threshold value.

[0119] This solution calculates the difference of temperature data, for example, subtracting the real-time temperature of the lowest monitoring location from the real-time temperature of the highest monitoring location to obtain an actual temperature difference. This actual temperature difference is then compared with the first set threshold. If the difference exceeds the first set threshold, it means that the temperature difference between different parts of the charging cable is too large. Under normal circumstances, when the coolant can circulate smoothly and dissipate heat evenly, the temperature of each part should be relatively balanced. This large temperature difference is likely to be caused by congestion in the cooling pipe, which causes the coolant to be unable to circulate normally in some parts to take away heat, so that the temperature of these parts cannot be lowered, resulting in uneven temperature distribution. Therefore, it can be determined that the cooling pipe is congested at this time, and then the corresponding subsequent countermeasures are triggered.

[0120] The second threshold value can be a pre-set temperature limit value, but it focuses on comparing the temperature changes at each monitoring position before and after the active circulation of the coolant to determine whether the cooling pipe is congested. The setting of this threshold is also determined by comprehensively considering the reasonable range of temperature drop after a period of coolant circulation when the charging cable is dissipating heat normally. For example, setting it to 3°C means that under normal circumstances, the temperature should drop to a certain extent after the circulation. If this drop is not achieved, there may be a problem.

[0121] After obtaining the current real-time temperature of each monitoring position, the control system will call out the real-time temperature data of each corresponding monitoring position recorded before the control coolant actively circulates, and then calculate the temperature difference before and after each monitoring position one by one, that is, subtract the real-time temperature of the current monitoring position from the real-time temperature before the control coolant actively circulates. Then compare the obtained temperature difference of each monitoring position with the second set threshold. If the temperature difference of all or most monitoring positions is lower than the second set threshold, it means that after the active circulation of the coolant, the temperature of each part of the cable has not dropped significantly as in normal circumstances. It is likely that there is congestion in the cooling pipe, and the coolant cannot circulate effectively to take away the heat, resulting in unclear temperature changes. Therefore, it can be determined that there is congestion in the cooling pipe, so that corresponding treatment measures can be taken later to ensure the normal operation of the charging cable cooling system.

[0122] Embodiment 2

[0123] Figure 2 It is a flow chart of a method for controlling the cooling liquid of a charging cable provided in Embodiment 4 of the present application.

[0124] like Figure 2 As shown, the specific steps include:

[0125] S201, obtaining status information of a charging cable; wherein the status information includes a working status and / or a real-time temperature;

[0126] S202: When the state information satisfies a preset condition, controlling the coolant in the charging cable to actively circulate in the cooling pipe;

[0127] S203: Control a preset cooling node of the charging cable to operate, so as to perform a subsidiary cooling operation on the coolant of the charging cable at the preset cooling node.

[0128] In this embodiment, the status information of the charging cable is obtained; wherein the status information includes the working status and / or the real-time temperature; when the status information meets the preset conditions, the coolant inside the charging cable is controlled to actively circulate inside the cooling pipe; the preset cooling node of the charging cable is controlled to operate, so as to perform auxiliary cooling operation on the coolant of the charging cable at the preset cooling node. By adopting the above technical solution, the effect of rapid heat dissipation can be achieved during the operation of the charging cable through the control of the coolant and the auxiliary cooling of the cooling node, thereby avoiding the problems such as accelerated aging of the insulation layer caused by excessive heat generation during the operation of the charging cable, which affects the safety of use.

[0129] Furthermore, the cooling node is provided with a blowing device and / or a spraying device;

[0130] Controlling a preset cooling node of the charging cable to operate, including:

[0131] The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

[0132] The charging cable coolant control method provided in the embodiment of the present application corresponds to the charging cable coolant control device provided in the above embodiment, and has the same execution process and beneficial effects. To avoid repetition, it will not be repeated here.

[0133] Embodiment 3

[0134] like Figure 3As shown, an embodiment of the present application further provides an electronic device 300, including a processor 301, a memory 302, and a program or instruction stored in the memory 302 and executable on the processor 301. When the program or instruction is executed by the processor 301, each process of the above-mentioned charging cable coolant control device embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0135] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0136] Embodiment 4

[0137] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned charging cable coolant control device embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0138] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0139] Embodiment 5

[0140] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned charging cable coolant control device embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0141] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0142] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0143] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0144] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0145] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A control device for a charging cable coolant, characterized in that: The device comprises: An information acquisition module, used to acquire status information of the charging cable; wherein the status information includes working status and / or real-time temperature; a coolant control module, configured to control the coolant in the charging cable to actively circulate in the cooling pipe when the state information satisfies a preset condition; The cooling node control module is used to control the preset cooling node of the charging cable to operate so as to perform an auxiliary cooling operation on the coolant of the charging cable at the preset cooling node.

2. The charging cable coolant control device according to claim 1, characterized in that: The cooling node is provided with a blowing device and / or a spraying device; The cooling node control module is specifically used for: The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

3. The control device for charging cable coolant according to claim 2, characterized in that: The device also includes: a control parameter determination module, configured to determine a control parameter of the cooling node according to the state information of the charging cable; The cooling node control module is further specifically used for: According to the control parameter, the working state of each preset cooling node is determined to be one of the following three states: not working, working at a first power, and working at a second power.

4. The control device for charging cable coolant according to claim 2, characterized in that: The device also includes: The insulation layer abnormality identification module includes a leakage detection device, which is arranged corresponding to the cooling node in which the spraying device is arranged in the cooling node, and is used to perform leakage abnormality detection on the cable insulation layer after the spraying operation.

5. The control device for charging cable coolant according to claim 1, characterized in that: The coolant control module is further used for: After controlling the coolant in the charging cable to actively circulate in the cooling pipe, identifying whether the cooling pipe is blocked; In the event of congestion, the coolant in the spare cooling pipe is controlled to circulate actively, and a prompt message of cooling pipe congestion is generated.

6. The control device for charging cable coolant according to claim 5, characterized in that: The coolant control module is specifically used for: After controlling the coolant inside the charging cable to actively circulate inside the cooling pipe, obtaining the real-time temperature of the charging cable at each monitoring position; When the temperature difference between the real-time temperatures at the respective monitoring positions exceeds a first set threshold, determining that the cooling pipe is congested; or, When the difference between the real-time temperature at each monitoring position and the real-time temperature before controlling the active circulation of the coolant is lower than a second set threshold, it is determined that the cooling pipe is congested.

7. The charging cable coolant control device according to claim 1, characterized in that: The device also includes: A cooling effect prompt module is used to obtain the real-time temperature of each monitoring position after starting the cooling control, generate a charging cable temperature distribution model according to the real-time temperature, display the real-time temperature of each monitoring position on the charging cable temperature distribution model, and determine the cooling effect of the charging cable based on the high temperature distribution position and high temperature occupied length in the temperature distribution model.

8. A method for controlling a charging cable coolant, characterized in that: The method comprises: Acquiring status information of the charging cable; wherein the status information includes working status and / or real-time temperature; When the state information satisfies a preset condition, controlling the coolant inside the charging cable to actively circulate inside the cooling pipe; A preset cooling node of the charging cable is controlled to operate so as to perform a subsidiary cooling operation on the coolant of the charging cable at the preset cooling node.

9. The method for controlling the charging cable coolant according to claim 8, characterized in that: The cooling node is provided with a blowing device and / or a spraying device; Controlling a preset cooling node of the charging cable to operate, including: The blowing device and / or the spraying device are controlled to perform a blowing operation and / or a spraying operation on the cooling pipe, so as to perform a subsidiary temperature reduction operation on the coolant inside the cooling pipe.

10. An electronic device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method for controlling the cooling liquid of a charging cable as described in any one of claims 8 to 9.

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