Battery thermal management water chilling unit configuration regulation and control method and system

Abstract

The invention relates to the technical field of battery thermal management, in particular to a battery thermal management water chilling unit configuration regulation and control method and system.The method comprises the following steps that a battery is partitioned to form N battery packs, and a heat dissipation circulation network is constructed; conventional heat absorption circulation is performed on each battery pack through a heat dissipation circulation network, and a temperature sensor is arranged to monitor and collect the temperature value of each battery pack in real time; and sequentially judging whether the temperature value of each battery pack reaches a near temperature or a thermal runaway temperature or not, determining the current cycle regulation and control quantity according to a judgment result, and executing one thermal regulation and control cycle. A battery is partitioned, a heat dissipation circulation network is constructed, a temperature sensor is arranged to monitor and collect the temperature of a battery pack in real time, temperature changes of different regions can be responded in time, targeted cooling and heat dissipation treatment is carried out, and local overheating of the battery is avoided; through a subarea monitoring and regulation mode, the flow circulation process of the conduction medium can be accurately adjusted, and the overall heat dissipation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery thermal management, and in particular to a battery thermal management water cooling unit configuration control method and system. Background Art

[0002] Batteries generate heat during the charging and discharging process. If the heat is not properly controlled and handled, the battery temperature may be too high, thus affecting battery performance and life, and even causing safety problems. The battery thermal management system is a system used to control and regulate the battery temperature. It can effectively control the battery temperature and ensure that the battery operates within a safe and efficient temperature range.

[0003] The water cooling unit is a type of battery thermal management system. It transfers and dissipates the heat generated by the battery through liquid circulation. It generally includes a compressor, a radiator, a circulation pipeline, a control valve and other structures. When heat dissipation is required, the conductive medium is transported to the battery through the circulation pipeline to absorb the heat generated by the battery. The conductive medium that has absorbed the heat is then transported to the cooling tower through the circulation pipeline for cooling treatment, forming a cycle. However, in the above process, since the temperature and heat of each area of ​​the battery are different during operation, the conductive medium cannot form targeted cooling treatment for the heating conditions of the battery in different areas, which affects the uniformity of heat dissipation, and makes it difficult for the overall cooling effect and efficiency to reach an ideal state.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a battery thermal management water cooling unit configuration control method and system, which can form targeted thermal cycle control for the heating conditions of different areas of the battery, ensure the uniformity of heat dissipation, and improve the overall heat dissipation effect and efficiency of the battery.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: a battery thermal management water cooling unit configuration control method, comprising the following steps:

[0007] The battery is partitioned into N battery groups, and a heat dissipation circulation network is constructed;

[0008] Performing a conventional heat absorption cycle on each of the battery packs through the heat dissipation cycle network, and setting a temperature sensor to monitor and collect the temperature value of each of the battery packs in real time;

[0009] It is determined in turn whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, and the current cycle control amount is determined according to the determination result and a thermal control cycle is executed.

[0010] Furthermore, the heat dissipation circulation network includes a circulation pump, a cooling tower, a temperature sensor, a regulating valve, a heat absorption pipeline, a cold source pipeline and a return pipeline.

[0011] Furthermore, the battery is partitioned into N battery groups and a heat dissipation cycle network is constructed, including the following steps:

[0012] The battery is divided into zones to form N battery groups arranged in sequence, each battery group is provided with a heat absorption pipe, a temperature sensor and a regulating valve, the heat absorption pipe is arranged on the corresponding battery group, the temperature sensor monitors and records the temperature value of the corresponding battery group in real time, and the regulating valve is provided at the inlet of the battery group corresponding to the heat absorption pipe, and is used to adjust the flow rate of the conductive medium in the heat absorption pipe;

[0013] The cold source pipeline is located at the outlet of the cooling tower and the total inlet of the heat absorption pipeline, and the return pipeline is arranged at the inlet of the cooling tower and the total outlet of the heat absorption pipeline;

[0014] The conductive medium is executed by the pumping action of the circulation pump to flow from the outlet of the cooling tower through the cold source pipe into the heat absorption channel, and enters the interior of the cooling tower through the return pipe and the inlet of the cooling tower.

[0015] Furthermore, when the heat dissipation cycle network performs a conventional heat absorption cycle on each battery pack, the flow rate of the cooling medium in each heat absorption channel is the conventional flow rate Q 常 .

[0016] Further, the step of determining in sequence whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, determining the current cycle control amount according to the determination result, and executing a thermal control cycle includes the following steps:

[0017] Numbering the N battery packs in sequence, and determining in sequence whether the temperature value of the battery pack corresponding to each number reaches an approaching temperature or a thermal runaway temperature;

[0018] When the temperature of the battery pack reaches the near temperature, the current battery pack is marked as a priority circulation group, and the number of the current battery pack and the number of all priority circulation groups are recorded, and the current circulation control amount is determined according to the number of the priority circulation groups and a thermal control cycle is performed;

[0019] When the temperature of the battery pack reaches the thermal runaway temperature, the current battery pack is marked as a near-runaway group, and the number of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack are recorded. The current cycle control amount is determined based on the temperature value of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack, and a thermal control cycle is executed.

[0020] Further, the determining of the current cycle control amount according to the number of the preferred cycle groups and executing a thermal control cycle comprises the following steps:

[0021] When the number of the priority circulation groups is greater than 1, the surplus flow Q of the conductive medium is 余 Redistribute, and determine the flow rate of the heat absorption channel corresponding to each of the preferred circulation groups as follows: The flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 常 , Q 常 The flow rate of the cooling medium in each of the heat absorbing channels when performing a conventional heat absorbing cycle, s is the number of the preferred cycle groups; and a heat regulation cycle is performed according to the above cycle regulation amount;

[0022] When the number of the priority circulation groups is equal to 1, the temperature value of each remaining numbered battery group is determined, and the temperature values ​​of each remaining numbered battery group are reordered from high to low; the surplus flow Q of the current conductive medium is calculated according to the reordered sequence number of each remaining numbered battery group and its corresponding temperature value. 余 Redistribute, determine the current cycle control amount and perform a thermal control cycle.

[0023] Furthermore, the remaining number of each battery pack and its corresponding temperature value are used to determine the surplus flow rate Q of the current conductive medium. 余 Redistribute, determine the current cycle control amount and perform a thermal control cycle, including the following steps:

[0024] Determine the current surplus flow Q of the conductive medium 余 Whether the flow rate Q corresponding to the heat absorption demand of the priority circulation group can be met 需 ;

[0025] If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 余 , the flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 常 If it can be satisfied, the flow rate of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 需, and determine the current flow margin Q of the conductive medium 余1 =Q 余 -Q 需 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number 1 after reordering be met? 需1 ;

[0026] If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the battery pack with sequence number 1 after reordering is determined to be Q 常 +Q 余1 , the flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 常 If it can be satisfied, then the flow rate of the heat absorption channel corresponding to the battery pack with sequence number 1 after reordering is determined to be Q 常 +Q 需1 ;

[0027] Repeat the above steps in the re-arranged order to determine the current flow margin Q of the conductive medium in turn. 余k =Q 余k-1 -Q 需k-1 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number k after reordering be met? 需k ; Until the circulation balance Q 余k The flow rate Q corresponding to the heat absorption demand of the battery group with serial number k is not met 需k When the excess flow Q of the conductive medium is completed 余 and performs a thermal control cycle according to the above cycle control amount.

[0028] Further, determining the current cycle control amount and executing a thermal control cycle according to the temperature value of the current battery pack, the temperature value of the last numbered battery pack, and the temperature value of the next numbered battery pack includes the following steps:

[0029] Determine whether the temperature value of the last numbered battery pack or the temperature value of the next numbered battery pack reaches the nearby temperature;

[0030] If it is reached, it is determined that the current battery group is a near out-of-control group. The current battery group, the previous numbered battery group and the next numbered battery group together form a near out-of-control area. The flow rate of the heat absorption channel corresponding to the near out-of-control group is Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is The flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 低 , where Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余 Indicates the current surplus flow of the conductive medium; and performs a thermal control cycle according to the above cycle control amount;

[0031] If it is not reached, the flow rate of the heat absorption channel corresponding to the current battery pack is determined to be Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is Q 常 , the flow rate of the heat absorption channel corresponding to the rest of the battery pack is Among them, Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余 Indicates the current surplus flow of the conductive medium; and performs a thermal regulation according to the above cycle regulation amount.

[0032] Furthermore, the temperature value of each battery pack collected in real time by each temperature sensor is recorded to form a battery temperature data list, and the battery temperature data list is updated in real time during the battery use process.

[0033] The present invention also provides a battery thermal management water cooling unit configuration control system, comprising:

[0034] A cycle construction module is used to partition the battery into N battery packs and build a heat dissipation cycle network;

[0035] A data acquisition module, used to perform a conventional heat absorption cycle on each of the battery packs through the heat dissipation cycle network, and set a temperature sensor to monitor and collect the temperature value of each of the battery packs in real time;

[0036] The cycle control module is used to determine in turn whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, determine the current cycle control amount according to the determination result, and execute a thermal control cycle.

[0037] The beneficial effects of the present invention are as follows: the present invention divides the battery into zones and constructs a heat dissipation circulation network, and sets temperature sensors to monitor and collect the battery pack temperature in real time, so as to promptly respond to temperature changes in different areas, perform targeted cooling and heat dissipation treatment, avoid local overheating of the battery, and improve the safety and stability of battery use; through the mode of zone monitoring and regulation, the flow circulation process of the conductive medium can be accurately adjusted to form zone precise temperature control, thereby improving the overall heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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 recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of a flow chart of a battery thermal management water cooling unit configuration control method according to an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of a process for constructing a heat dissipation circulation network in an embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the structure of the heat dissipation circulation network in an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of a flow chart of thermal control cycle determination in an embodiment of the present invention;

[0043] Figure 5 It is a structural schematic diagram of a battery thermal management water cooling unit configuration control system in an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] like Figures 1 to 4 The battery thermal management water cooling unit configuration control method shown includes the following steps:

[0048] The battery is divided into N battery groups and a heat dissipation cycle network is constructed; this facilitates the formation of appropriate cooling effects for the areas corresponding to each battery group in the subsequent thermal control cycle, accurately controls the temperature of different areas of the battery, thereby improving the heat dissipation efficiency and uniformity of the battery and avoiding local overheating;

[0049] Through the heat dissipation cycle network, each battery pack is subjected to a regular heat absorption cycle, and a temperature sensor is set to monitor and collect the temperature value of each battery pack in real time; accurate data support is provided for the subsequent determination of the cycle control amount, and the temperature change is responded to in time to avoid overheating and ensure battery safety;

[0050] Determine in turn whether the temperature value of each battery pack has reached the near temperature or thermal runaway temperature, determine the current cycle control amount based on the judgment result, and execute a thermal control cycle; ensure that the cooling strategy is adjusted in time when the battery temperature approaches the dangerous value to avoid thermal runaway and improve the safety and stability of the battery.

[0051] The present invention divides the battery into zones and constructs a heat dissipation circulation network. By setting up temperature sensors to monitor and collect the temperature of the battery pack in real time, the present invention can promptly respond to temperature changes in different areas and perform targeted cooling and heat dissipation treatments to avoid local overheating of the battery and improve the safety and stability of battery use. Through zone monitoring and regulation, the flow circulation process of the conductive medium can be accurately adjusted to form zone-specific precise temperature control, thereby improving the overall heat dissipation effect.

[0052] On the basis of the above embodiment, the heat dissipation circulation network includes a circulation pump, a cooling tower, a temperature sensor, a regulating valve, a heat absorption pipe, a cold source pipe and a return pipe; the above components work together to accurately control the flow rate of the conductive medium, thereby effectively adjusting the temperature of the corresponding battery pack, ensuring that the battery operates within a safe and efficient temperature range, improving the performance and life of the battery, and reducing safety risks.

[0053] Based on the above embodiment, the battery is divided into N battery groups, and a heat dissipation circulation network is constructed, including the following steps:

[0054] The batteries are divided into zones to form N battery groups arranged in sequence. Each battery group is provided with a heat absorption pipe, a temperature sensor and a regulating valve. The heat absorption pipe is arranged on the corresponding battery group. The temperature sensor monitors and records the temperature value of the corresponding battery group in real time. The regulating valve is arranged at the inlet of the heat absorption pipe corresponding to the battery group to adjust the flow rate of the conductive medium in the heat absorption pipe.

[0055] The cold source pipeline is located at the outlet of the cooling tower and the total inlet of the heat absorption pipeline, and the return pipeline is arranged at the inlet of the cooling tower and the total outlet of the heat absorption pipeline;

[0056] The conductive medium is pumped by the circulating pump to flow from the outlet of the cooling tower through the cold source pipe into the heat absorption channel, and then enters the interior of the cooling tower through the return pipe and the inlet of the cooling tower.

[0057] The circulation pump is a key device that promotes the circulation of the conductive medium in the reheat cycle network, thereby realizing the flow and transfer of the conductive medium; the cooling tower is used to cool the conductive medium that has absorbed heat. When the conductive medium passes through the cooling tower, the heat is released into the external environment and the temperature is reduced, thereby preparing for the next thermal control cycle and realizing continuous heat dissipation; the temperature sensor is responsible for real-time monitoring of the temperature of the battery pack and providing temperature data for subsequent thermal control cycles to ensure that it can respond according to actual temperature changes; the regulating valve can control the flow and conductance of the conductive medium in different heat absorption channels according to the actual temperature and load requirements of the battery pack, thereby realizing refined thermal management.

[0058] When a conventional heat absorption cycle is performed on each battery pack through the heat dissipation cycle network based on the above embodiment, the flow rate of the cooling medium in each heat absorption channel is the conventional flow rate Q 常 ; It can ensure that all battery packs receive the same level of cooling in the initial state, which helps to maintain the thermal uniformity of the entire battery system. The conventional flow rate Q 常 It also provides a reference point for subsequent dynamic adjustments. Based on the real-time monitored temperature data, the flow rate of a specific battery pack can be increased or decreased according to different situations to cope with the thermal load conditions of different battery packs.

[0059] Based on the above embodiment, it is determined in turn whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, and the current cycle control amount is determined according to the determination result and a thermal control cycle is executed, including the following steps:

[0060] N battery packs are numbered in sequence, and the temperature value of each battery pack corresponding to the number is determined in turn to determine whether it reaches the near temperature or thermal runaway temperature; through numbering and sequence determination, the temperature status of each battery pack can be monitored comprehensively and orderly to ensure that no battery pack is missed and temperature anomalies are discovered in time;

[0061] When the temperature of the battery pack reaches the near temperature, the current battery pack is marked as a priority circulation group, and the number of the current battery pack and the number of all priority circulation groups are recorded. The current circulation control amount is determined according to the number of priority circulation groups, and a thermal control cycle is executed; the near circulation temperature is the temperature set by the staff according to the actual situation. When the battery pack reaches this temperature, it means that the battery pack has a tendency to locally heat up. At this time, the circulation control amount of the current thermal control cycle can be determined according to the number of priority circulation groups, so as to prevent the temperature from rising further and ensure the reasonable distribution of the conductive medium;

[0062] When the temperature of the battery pack reaches the thermal runaway temperature, the current battery pack is marked as an adjacent runaway group, and the number of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack are recorded. The current cycle control amount is determined based on the temperature value of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack, and a thermal control cycle is executed; the thermal runaway temperature is the temperature set by the staff according to the actual situation. When the battery pack reaches this temperature, it means that the temperature of the battery pack is close to the failure critical value. Corresponding emergency measures need to be taken according to the temperature conditions of the adjacent battery packs to prevent the thermal runaway trend from spreading and protect the battery pack from overheating damage.

[0063] Through the above configuration and control method, it is possible to respond quickly to the temperature changes of each battery pack, give priority to battery packs with higher temperatures, and take corresponding emergency measures considering the risk of thermal runaway. This not only improves the safety of the battery pack, but also helps to extend the battery's service life and maintain its performance.

[0064] Based on the above embodiment, the current cycle control amount is determined according to the number of preferred cycle groups and a thermal control cycle is performed, including the following steps:

[0065] When the number of priority circulation groups is greater than 1, the excess flow Q of the conductive medium 余 Redistribute and determine the flow rate of the heat absorption channel corresponding to each preferred circulation group: The flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 常 , Q 常 is the flow rate of the cooling medium in each heat absorption channel when performing a conventional heat absorption cycle, s is the number of preferred circulation groups; and a thermal regulation cycle is performed according to the above cycle regulation amount; when the number of priority circulation groups is greater than 1, it means that there are multiple battery groups in the battery with local heating trends, and these trends need to be curbed at the same time. At this time, the surplus flow rate can be evenly redistributed and a thermal regulation cycle can be performed to ensure that the priority circulation group quickly obtains more flow rate for heat absorption cooling, while other battery groups still maintain basic cooling needs;

[0066] When the number of priority circulation groups is equal to 1, the temperature value of each remaining numbered battery group is determined, and the temperature values ​​of each remaining numbered battery group are reordered from high to low; the surplus flow Q of the current conductive medium is calculated based on the reordered sequence number of each remaining numbered battery group and its corresponding temperature value. 余Redistribute, determine the current circulation control amount and execute a thermal control cycle; when the number of priority circulation groups is equal to 1, it means that there is only one battery group in the battery with a local heating trend. At this time, when considering curbing the heating trend of the priority circulation group, in order to improve the heat absorption effect, the temperature state of the remaining battery groups can be understood, and the battery groups with relatively high temperatures can be identified in sequence by sorting. According to the temperature of the priority circulation group and the current surplus flow, the flow margin is preferentially allocated to the battery group with relatively high temperature, thereby preventing the occurrence of local overheating of the battery.

[0067] Based on the above embodiment, the remaining number of each battery group is rearranged and its corresponding temperature value is used to calculate the surplus flow Q of the current conductive medium. 余 Redistribute, determine the current cycle control amount and perform a thermal control cycle, including the following steps:

[0068] Determine the current excess flow Q of the conductive medium 余 Whether the flow rate Q corresponding to the heat absorption demand of the priority circulation group can be met 需 ; This ensures that the priority circulation group that needs cooling first can obtain sufficient conduction medium to meet the heat absorption cooling needs;

[0069] If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 余 , the flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 常 ; This means that the surplus flow can only meet the heat absorption demand of the priority circulation group to a certain extent. When the surplus flow is limited, the priority circulation group should be given priority to obtain sufficient cooling. If it can be satisfied, the flow of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 需 , and determine the current flow margin Q of the conductive medium 余1 =Q 余 -Q 需 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number 1 after reordering be met? 需1 ; This means that at this time, while the surplus flow meets the heat absorption demand of the priority circulation group, the surplus flow can also be optimally allocated to the remaining battery groups according to the order of temperature, ensuring that the battery groups with lower priority can also be properly cooled;

[0070] If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the battery pack with sequence number 1 after reordering is determined to be Q 常 +Q 余1 , the flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 常; That is, at this time, the surplus flow is preferentially allocated to the priority circulation group and the battery group with sequence number 1 after reordering for heat absorption cooling; if it can be satisfied, the flow of the heat absorption channel corresponding to the battery group with sequence number 1 after reordering is determined to be Q 常 +Q 需1 ;

[0071] Repeat the above steps in the re-arranged order to determine the current flow margin Q of the conductive medium. 余k =Q 余k-1 -Q 需k-1 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number k after reordering be met? 需k ; That is, determine in sequence whether the current flow margin of the conductive medium can meet the flow corresponding to the heat absorption demand of the reordered battery packs numbered 2, 3...n, until the flow margin Q 余k The flow rate Q corresponding to the heat absorption demand of the battery group with serial number k is not met 需k When the excess flow Q of the conductive medium is completed 余 Through the above step-by-step confirmation process, the maximum utilization of surplus flow is guaranteed, and it can be ensured that each battery pack can be allocated the corresponding flow according to its temperature state, so as to achieve the best thermal management of the battery pack.

[0072] Based on the above embodiment, the current cycle control amount is determined according to the temperature value of the current battery pack, the temperature value of the last numbered battery pack, and the temperature value of the next numbered battery pack, and a thermal control cycle is performed, including the following steps:

[0073] Determine whether the temperature value of the last numbered battery pack or the temperature value of the next numbered battery pack reaches the adjacent temperature; through this step, it is confirmed whether the overheating of the current battery pack has a correlated impact on the adjacent battery packs, so as to facilitate the subsequent adoption of corresponding countermeasures;

[0074] If it is reached, the current battery group is determined to be an adjacent out-of-control group. The current battery group, the previous numbered battery group and the next numbered battery group together form an adjacent out-of-control area. By merging the adjacent battery groups with abnormal temperatures into one area, this area can be cooled more effectively. The flow rate of the heat absorption channel corresponding to the adjacent out-of-control group is Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is The flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 低 , where Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余Indicates the surplus flow of the current conductive medium; and performs a thermal control cycle according to the above cycle control amount; by adjusting the battery packs in other areas to the flow corresponding to the low-temperature cycle at this time, more surplus flow can be allocated in the heat dissipation cycle network to be allocated to the adjacent out-of-control area, increasing the flow in the adjacent out-of-control area, quickly responding to temperature anomalies, and preventing the occurrence of thermal runaway;

[0075] If it is not reached, it means that the adjacent out-of-control group has no impact on the adjacent area and the risk of out-of-control is small. Then the flow rate of the heat absorption channel corresponding to the current battery group is determined to be Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is Q 常 , the flow rate of the heat absorption channel corresponding to the remaining battery packs is Among them, Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余 Indicates the surplus flow of the current conductive medium; and performs a thermal control according to the above cycle control amount; at this time, the current battery pack is subjected to a high-temperature cycle, and the temperature of the battery pack is quickly controlled to keep its temperature within a safe range. At the same time, the adjacent battery pack is subjected to a conventional heat absorption cycle to protect the temperature of the battery pack in the adjacent area, and the remaining battery packs are subjected to a low-temperature cycle to maintain the overall temperature balance.

[0076] On the basis of the above-mentioned embodiment, the temperature value of each battery pack collected in real time by each temperature sensor is recorded to form a battery temperature data list, which is updated in real time during the battery use process; the battery temperature data list provides a centralized view for viewing the temperature status of all battery packs, which is convenient for comparison and analysis, thereby helping operators monitor the temperature changes of the battery packs and promptly discover potential local overheating problems.

[0077] like Figure 5 As shown, the present invention also provides a battery thermal management water cooling unit configuration control system, including:

[0078] A cycle construction module is used to partition the battery into N battery packs and build a heat dissipation cycle network;

[0079] A data acquisition module is used to perform a conventional heat absorption cycle on each battery pack through a heat dissipation cycle network, and set a temperature sensor to monitor and collect the temperature value of each battery pack in real time;

[0080] The cycle control module is used to determine in turn whether the temperature value of each battery pack has reached the near temperature or the thermal runaway temperature, determine the current cycle control amount according to the determination result, and execute a thermal control cycle.

[0081] The present invention divides the battery into zones and constructs a heat dissipation circulation network. By setting up temperature sensors to monitor and collect the temperature of the battery pack in real time, the present invention can promptly respond to temperature changes in different areas and perform targeted cooling and heat dissipation treatments to avoid local overheating of the battery and improve the safety and stability of battery use. Through zone monitoring and regulation, the flow circulation process of the conductive medium can be accurately adjusted to form zone-specific precise temperature control, thereby improving the overall heat dissipation effect.

[0082] The specific working process of the above system has been described in the embodiment of the corresponding method and will not be repeated here.

[0083] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A battery thermal management water cooling unit configuration control method, characterized in that: The following steps are involved: The battery is partitioned into N battery groups, and a heat dissipation circulation network is constructed; Performing a conventional heat absorption cycle on each of the battery packs through the heat dissipation cycle network, and setting a temperature sensor to monitor and collect the temperature value of each of the battery packs in real time; It is determined in turn whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, and the current cycle control amount is determined according to the determination result and a thermal control cycle is executed.

2. The battery thermal management water cooling unit configuration control method according to claim 1 is characterized in that: The heat dissipation circulation network includes a circulation pump, a cooling tower, a temperature sensor, a regulating valve, a heat absorption pipeline, a cold source pipeline and a return pipeline.

3. The battery thermal management water cooling unit configuration control method according to claim 2 is characterized in that: The method of partitioning the battery into N battery groups and constructing a heat dissipation circulation network includes the following steps: The battery is divided into zones to form N battery groups arranged in sequence, each battery group is provided with a heat absorption pipe, a temperature sensor and a regulating valve, the heat absorption pipe is arranged on the corresponding battery group, the temperature sensor monitors and records the temperature value of the corresponding battery group in real time, and the regulating valve is provided at the inlet of the battery group corresponding to the heat absorption pipe, and is used to adjust the flow rate of the conductive medium in the heat absorption pipe; The cold source pipeline is located at the outlet of the cooling tower and the total inlet of the heat absorption pipeline, and the return pipeline is arranged at the inlet of the cooling tower and the total outlet of the heat absorption pipeline; The conductive medium is executed by the pumping action of the circulation pump to flow from the outlet of the cooling tower through the cold source pipe into the heat absorption channel, and enters the interior of the cooling tower through the return pipe and the inlet of the cooling tower.

4. The battery thermal management water cooling unit configuration control method according to claim 1, characterized in that: When the heat dissipation cycle network performs a conventional heat absorption cycle on each battery pack, the flow rate of the cooling medium in each heat absorption channel is the conventional flow rate Q 常 .

5. The battery thermal management water cooling unit configuration control method according to claim 1, characterized in that: The step of sequentially determining whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, determining the current cycle control amount according to the determination result, and executing a thermal control cycle includes the following steps: Numbering the N battery packs in sequence, and determining in sequence whether the temperature value of the battery pack corresponding to each number reaches an approaching temperature or a thermal runaway temperature; When the temperature of the battery pack reaches the near temperature, the current battery pack is marked as a priority circulation group, and the number of the current battery pack and the number of all priority circulation groups are recorded, and the current circulation control amount is determined according to the number of the priority circulation groups and a thermal control cycle is performed; When the temperature of the battery pack reaches the thermal runaway temperature, the current battery pack is marked as a near-runaway group, and the number of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack are recorded. The current cycle control amount is determined based on the temperature value of the current battery pack, the temperature value of the previous numbered battery pack, and the temperature value of the next numbered battery pack, and a thermal control cycle is executed.

6. The battery thermal management water cooling unit configuration control method according to claim 5, characterized in that: Determining the current cycle control amount according to the number of the preferred cycle groups and executing a thermal control cycle includes the following steps: When the number of the priority circulation groups is greater than 1, the surplus flow Q of the conductive medium is 余 Redistribute, and determine the flow rate of the heat absorption channel corresponding to each of the preferred circulation groups as follows: The flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 常 , Q 常 The flow rate of the cooling medium in each of the heat absorbing channels when performing a conventional heat absorbing cycle, s is the number of the preferred cycle groups; and a heat regulation cycle is performed according to the above cycle regulation amount; When the number of the priority circulation groups is equal to 1, the temperature value of each remaining numbered battery group is determined, and the temperature values ​​of each remaining numbered battery group are reordered from high to low; the surplus flow Q of the current conductive medium is calculated according to the reordered sequence number of each remaining numbered battery group and its corresponding temperature value. 余 Redistribute, determine the current cycle control amount and perform a thermal control cycle.

7. The battery thermal management water cooling unit configuration control method according to claim 6, characterized in that: The remaining number of each battery group and its corresponding temperature value are used to determine the surplus flow Q of the current conductive medium. 余 Redistribute, determine the current cycle control amount and perform a thermal control cycle, including the following steps: Determine the current surplus flow Q of the conductive medium 余 Whether the flow rate Q corresponding to the heat absorption demand of the priority circulation group can be met 需 ; If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 余 , the flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 常 If it can be satisfied, the flow rate of the heat absorption channel corresponding to the priority circulation group is determined to be Q 常 +Q 需 , and determine the current flow margin Q of the conductive medium 余1 =Q 余 -Q 需 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number 1 after reordering be met? 需1 ; If it cannot be satisfied, the flow rate of the heat absorption channel corresponding to the battery pack with sequence number 1 after reordering is determined to be Q 常 +Q 余1 , the flow rate of the heat absorption channel corresponding to the remaining battery pack is Q 常 If it can be satisfied, then the flow rate of the heat absorption channel corresponding to the battery pack with sequence number 1 after reordering is determined to be Q 常 +Q 需1 ; Repeat the above steps in the re-arranged order to determine the current flow margin Q of the conductive medium in turn. 余k =Q 余k-1 -Q 需k-1 Can the flow Q corresponding to the heat absorption demand of the battery group with sequence number k after reordering be met? 需k ; Until the circulation balance Q 余k The flow rate Q corresponding to the heat absorption demand of the battery group with serial number k is not met 需k When the excess flow Q of the conductive medium is completed 余 and performs a thermal control cycle according to the above cycle control amount.

8. The battery thermal management water cooling unit configuration control method according to claim 5, characterized in that: The method of determining the current cycle control amount and executing a thermal control cycle according to the temperature value of the current battery pack, the temperature value of the last numbered battery pack, and the temperature value of the next numbered battery pack includes the following steps: Determine whether the temperature value of the last numbered battery pack or the temperature value of the next numbered battery pack reaches the nearby temperature; If it is reached, it is determined that the current battery group is a near out-of-control group. The current battery group, the previous numbered battery group and the next numbered battery group together form a near out-of-control area. The flow rate of the heat absorption channel corresponding to the near out-of-control group is Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is The flow rate of the heat absorption channel corresponding to the rest of the battery pack is Q 低 , where Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余 Indicates the current surplus flow of the conductive medium; and performs a thermal control cycle according to the above cycle control amount; If it is not reached, the flow rate of the heat absorption channel corresponding to the current battery pack is determined to be Q 高 , the flow rate of the heat absorption channel corresponding to the previous numbered battery group and the next numbered battery group is Q 常 , the flow rate of the heat absorption channel corresponding to the rest of the battery pack is Among them, Q 高 represents the flow rate corresponding to the high temperature cycle, Q 低 represents the flow rate corresponding to the low temperature cycle, Q 余 Indicates the current surplus flow of the conductive medium; and performs a thermal regulation according to the above cycle regulation amount.

9. The battery thermal management water cooling unit configuration control method according to claim 1, characterized in that: The temperature value of each battery pack collected in real time by each temperature sensor is recorded to form a battery temperature data list, and the battery temperature data list is updated in real time during the battery use process.

10. A battery thermal management water cooling unit configuration control system, characterized in that: include: A cycle construction module is used to partition the battery into N battery packs and build a heat dissipation cycle network; A data acquisition module, used to perform a conventional heat absorption cycle on each of the battery packs through the heat dissipation cycle network, and set a temperature sensor to monitor and collect the temperature value of each of the battery packs in real time; The cycle control module is used to determine in turn whether the temperature value of each battery pack reaches the near temperature or the thermal runaway temperature, determine the current cycle control amount according to the determination result, and execute a thermal control cycle.

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