Logistics vehicle battery module with guide structure and heat dissipation control system of the module

Abstract

The present invention relates to the technical field of battery modules, and discloses a battery module for a logistics vehicle with a guide structure and a heat dissipation control system for the module, comprising: a shell assembly, the exterior of which is provided with a connector for connecting to a vehicle body and a guide member for positioning; a battery assembly is provided inside the shell assembly, and heat dissipation gaps are provided between the multiple battery cells of the battery assembly. The connector can be directly plugged into the corresponding position on the vehicle body to avoid incorrect or missed insertions, making installation convenient; while the guide member is used for positioning during plugging, the wrong plugging direction can be effectively avoided, and the speed and stability of battery module replacement and disassembly can be improved; the heat dissipation gaps between the battery cells provide heat dissipation space, improve the heat dissipation and safety performance of the battery assembly, reduce the operating temperature of the battery assembly, effectively extend the service life of the battery assembly, and reduce maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of battery modules, and more particularly, to a logistics vehicle battery module with a guide structure and a heat dissipation control system for the module. Background Art

[0002] Battery modules are used in many fields, such as new energy vehicles, logistics vehicles, and robots. Some vehicles need to replace battery modules to ensure continuous operation and avoid wasting time charging the entire vehicle.

[0003] There are multiple sets of wiring harnesses connecting the battery module and the vehicle body, including at least one set of discharge wires, one set of charging wires and one set of communication wires. When the battery end and the vehicle body end are plugged together, it is easy to plug them in incorrectly or miss them, resulting in the vehicle body not being powered on or the communication connection being incorrect, and the vehicle body cannot operate normally and effectively. In addition, the replaceable battery module is detachable from the vehicle body, and its structure is relatively compact, so its own heat dissipation capacity needs to be improved.

[0004] Therefore, it is necessary to propose a logistics vehicle battery module with a guide structure and a heat dissipation control system for the module to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, the present invention provides a logistics vehicle battery module with a guide structure, including: a shell assembly, the outside of which is provided with a connector for connecting to the vehicle body and a guide for positioning; the inside of the shell assembly is provided with a battery assembly, and a heat dissipation gap is provided between the multiple battery cells of the battery assembly.

[0007] Preferably, the guide member includes: a fixing plate for connecting to the housing assembly, a limiting plate arranged perpendicular to the fixing plate, guide plates are provided at both ends of the limiting plate, and a guide groove is formed between the guide plate and the limiting plate.

[0008] Preferably, the battery assembly includes: a plurality of battery cells arranged between a first bracket and a second bracket, and the outer sides of the first bracket and the second bracket are provided with conductive sheets, and the outer side of one of the conductive sheets is provided with an adapter plate for connecting to the protective plate in the outer shell assembly.

[0009] Preferably, the first bracket and the second bracket are both provided with a plurality of mounting holes corresponding to the two ends of the battery cells, and the distance between adjacent mounting holes can ensure that there is a heat dissipation gap between adjacent battery cells.

[0010] Preferably, the first bracket is provided with a plurality of first connecting columns, and the second bracket is provided with a plurality of second connecting columns connected to the first connecting columns; the first connecting columns and the second connecting columns are arranged between adjacent mounting holes.

[0011] Preferably, the temperature zones of the multiple battery cells during operation include a high temperature zone, a transition zone and a low temperature zone, the heat dissipation gap between adjacent battery cells gradually decreases from the high temperature zone to the low temperature zone, and the maximum value of the heat dissipation gap is less than or equal to the set gap distance.

[0012] A logistics vehicle battery module heat dissipation control system, comprising:

[0013] The prediction module obtains the initial heat dissipation control parameters based on the predicted temperature changes of the battery cells within a set time in the future;

[0014] A correction module obtains a correction amount of the initial heat dissipation control parameter based on a prediction error between the actual temperature of the battery cell and the predicted temperature and a rate of change of the error, and obtains a corrected heat dissipation control parameter based on the initial heat dissipation control parameter and the correction amount;

[0015] The adjustment module adjusts the corrected heat dissipation control parameter according to the difference between the actual temperature of the battery cell with the highest temperature among the multiple battery cells and the target temperature.

[0016] Preferably, the prediction module includes:

[0017] A prediction unit, which predicts the temperature of the battery cell at each moment within a set time in the future and obtains the predicted temperature;

[0018] The optimization unit optimizes the current heat dissipation control parameters with the goal of minimizing the deviation between the target temperature and the predicted temperature and minimizing the energy consumption to obtain the initial heat dissipation control parameters.

[0019] Preferably, the correction module includes:

[0020] An acquisition unit, used to obtain a prediction error and an error change rate between the actual temperature of the battery cell and the predicted temperature;

[0021] The correction unit judges the prediction error and the error change rate based on the judgment rule to obtain the correction amount of the initial heat dissipation control parameter;

[0022] The output unit obtains a corrected heat dissipation control parameter according to the correction amount and the initial heat dissipation control parameter.

[0023] Preferably, the adjustment module includes:

[0024] The judgment unit is configured to adjust the heat dissipation control parameters when the difference between the actual temperature of the battery cell with the highest temperature among the multiple battery cells and the target temperature is greater than the set difference;

[0025] The adjustment unit uses PID control to adjust the corrected heat dissipation control parameters according to the difference between the actual temperature of the battery cell with the highest temperature and the target temperature.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] The battery module with a guide structure for a logistics vehicle and the heat dissipation control system for the module described in the present invention integrate a charging interface, a discharging interface, and a communication interface on the connector, which can be directly plugged into corresponding positions on the vehicle body, avoiding incorrect or missing insertions and facilitating installation. The guide member is used for positioning during insertion, which can effectively avoid incorrect insertion directions, improve the speed and stability of battery module replacement or removal, improve the operating efficiency of the vehicle body, and reduce the time cost of operation.

[0028] The present invention optimizes the arrangement of battery cells, with heat dissipation gaps between the cells, which can provide a certain space for heat dissipation between multiple battery cells, improve the heat dissipation performance and safety performance of the battery assembly, and can reduce the operating temperature of the battery assembly by 10°C-20°C, effectively extending the service life of the battery assembly and reducing maintenance costs;

[0029] The present invention can generate initial heat dissipation control parameters through a prediction module, the correction module can correct the initial heat dissipation control parameters based on real-time temperature feedback of the battery cell, and the adjustment module can further perform local adjustments to ensure the accuracy of the heat dissipation control parameters; thereby achieving synchronous optimization control of heat dissipation efficiency, battery cell temperature stability, and energy consumption reduction.

[0030] The logistics vehicle battery module with a guide structure and the heat dissipation control system of the module described in the present invention, as well as other advantages, objectives and features of the present invention will be reflected in part through the following description, and will also be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the exploded structure of the battery module of a logistics vehicle with a guide structure according to the present invention;

[0033] Figure 2 This is a schematic diagram of the overall structure of the battery module of a logistics vehicle with a guide structure according to the present invention;

[0034] Figure 3 This is a structural schematic diagram of the guide member in the battery module of a logistics vehicle with a guide structure according to the present invention;

[0035] Figure 4 This is a structural diagram of the arrangement of cells in a battery module for a logistics vehicle with a guide structure according to the present invention;

[0036] Figure 5 This is a schematic diagram of the exploded structure of the battery assembly in the battery module of the logistics vehicle with a guide structure according to the present invention;

[0037] Figure 6 This is a schematic diagram of the connection structure of the first bracket and the second bracket in the battery module of the logistics vehicle with a guide structure according to the present invention;

[0038] Figure 7 This is a schematic structural diagram of the first bracket in the battery module of a logistics vehicle with a guide structure according to the present invention;

[0039] Figure 8 This is a schematic structural diagram of the second bracket in the battery module of a logistics vehicle with a guide structure according to the present invention;

[0040] Figure 9 This is a schematic diagram of the internal structure of the battery module of a logistics vehicle with a guide structure according to the present invention;

[0041] Figure 10 This is a block diagram of the heat dissipation control system of the battery module of a logistics vehicle with a guide structure described in the present invention.

[0042] In the accompanying drawings: 1 is the shell assembly, 11 is the lower shell, 12 is the upper shell, 2 is the connector, 21 is the charging interface, 22 is the discharge interface, 23 is the communication interface, 3 is the guide, 31 is the fixing plate, 32 is the limit plate, 33 is the guide plate, 34 is the guide groove, 4 is the battery assembly, 41 is the battery cell, 42 is the first bracket, 421 is the first connecting column, 43 is the second bracket, 431 is the second connecting column, 44 is the conductive sheet, 45 is the adapter plate, 46 is the mounting hole, 5 is the sunken handle, 6 is the protection plate, 7 is the fixed structure plate, and 8 is the EVA plate. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0044] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0045] like Figure 1-Figure 2As shown, the present invention provides a logistics vehicle battery module with a guide structure, including: a shell component 1, the outside of which is provided with a connector 2 for connecting to the vehicle body and a guide 3 for positioning; the inside of the shell component 1 is provided with a battery component 4, and a plurality of battery cells 41 of the battery component 4 have heat dissipation gaps between them.

[0046] The housing assembly 1 comprises a lower housing 11 and an upper housing 12. The upper housing 12 is provided with a sunken handle 5. The battery assembly 4 is fixed to the lower housing 11 by an EVA sheet 8 (EVA, ethylene-vinyl acetate copolymer, a copolymer of ethylene and vinyl acetate) arranged on the outer side thereof, epoxy board glue, and foam extrusion.

[0047] A protective plate 6 , namely a BMS board (battery management system circuit board) is further provided in the housing assembly 1 , which is connected to the side of the lower shell 11 via a fixed structural plate 7 , for example, by screws.

[0048] The connector 2 is integrated with a charging interface 21, a discharging interface 22, and a communication interface 23, and can be directly plugged into corresponding positions on the vehicle body, avoiding incorrect or missed insertions and facilitating installation. The guide member 3 is used for positioning during insertion, effectively avoiding incorrect insertion directions, improving the speed and stability of battery module replacement or removal, improving the operating efficiency of the vehicle body, and reducing the time cost of operation;

[0049] Traditional products usually use square aluminum shell battery cells, aluminum busbars and pressure wiring harnesses. The battery cells 41 are separated by epoxy plates, and the heat dissipation conditions are relatively poor. In addition, the temperature between the battery cells 41 is prone to heat transfer, resulting in poor heat dissipation effect, high overall temperature of the battery module, and short life. The present invention optimizes the arrangement of the battery cells 41, and has heat dissipation gaps between the battery cells 41, which can provide a certain space for heat dissipation between multiple battery cells 41, thereby improving the heat dissipation performance and safety performance of the battery assembly 4, and can reduce the operating temperature of the battery assembly 4 by 10°C-20°C, effectively extending the service life of the battery assembly 4 and reducing maintenance costs.

[0050] like Figure 3 As shown, in one embodiment, the guide member 3 includes: a fixing plate 31 for connecting to the housing assembly 1, a limiting plate 32 arranged perpendicular to the fixing plate 31, guide plates 33 are provided at both ends of the limiting plate 32, and a guide groove 34 is formed between the guide plate 33 and the limiting plate 32.

[0051] The guide member 3 is arranged on one side of the connector 2, the fixing plate 31 is fixed to the lower shell 11 by screws, and a card hole is also provided on the limit plate 32. A corresponding elastic card connector can be provided on the vehicle body to realize the elastic installation and disassembly of the card hole and the elastic card connector, thereby ensuring the stability of the connection between the connector 2 and the vehicle body; a guide plate corresponding to the guide groove 34 can be provided on the vehicle body to realize the positioning and guidance of the installation.

[0052] like Figure 5 As shown, in one embodiment, the battery assembly 4 includes: a plurality of battery cells 41 arranged between a first bracket 42 and a second bracket 43, and the outer sides of the first bracket 42 and the second bracket 43 are provided with conductive plates 44, and the outer side of one of the conductive plates 44 is provided with an adapter plate 45 for connecting to the protective plate 6 in the outer shell assembly 1.

[0053] The battery cell 41 is arranged between the first bracket 42 and the second bracket 43, so that the heat dissipation space of the battery cell 41 is increased, thereby improving the heat dissipation effect;

[0054] In the traditional method of using square aluminum shell battery cells, aluminum busbars and pressure harnesses, there are many pressure harnesses and there is a risk of puncturing the wires and causing short circuits. Therefore, conductive sheets 44 and adapter plates 45 are used to replace the pressure harnesses and connect them to the protection plate 6, thereby reducing the risk of short circuits.

[0055] like Figure 7 and Figure 8 As shown, in one embodiment, the first bracket 42 and the second bracket 43 are each provided with a plurality of mounting holes 46 corresponding to the two ends of the battery cell 41 , and the distance between adjacent mounting holes 46 can provide a heat dissipation gap between adjacent battery cells 41 .

[0056] The two ends of the battery cell 41 are correspondingly inserted into the mounting holes 46 , so that there is a heat dissipation gap between adjacent battery cells 41 , forming a heat dissipation space, reducing heat transfer between the battery cells 41 and improving the heat dissipation effect.

[0057] like Figure 6-Figure 8 As shown, in one embodiment, the first bracket 42 is provided with a plurality of first connecting columns 421 , and the second bracket 43 is provided with a plurality of second connecting columns 431 connected to the first connecting columns 421 ; the first connecting columns 421 and the second connecting columns 431 are arranged between adjacent mounting holes 46 .

[0058] The end of the first connecting column 421 is correspondingly inserted into the limiting hole at the end of the second connecting column 431. The second connecting column 431 is also provided with a hole for inserting a screw. The end of the first connecting column 421 is provided with a threaded hole connected to the screw. The connection between the first connecting column 421 and the second connecting column 431 is in the middle of the distance between the first bracket 42 and the second bracket 43, that is, Figure 9 The screws are located in the shown position; through the connection between the first connecting column 421 and the second connecting column 431, the plurality of battery cells 41 are limited between the first bracket 42 and the second bracket 43.

[0059] like Figure 4As shown, in one embodiment, the temperature zones of the multiple battery cells 41 during operation include a high-temperature zone, a transition zone, and a low-temperature zone, and the heat dissipation gap between adjacent battery cells 41 gradually decreases from the high-temperature zone to the low-temperature zone, and the maximum value of the heat dissipation gap is less than or equal to the set gap distance.

[0060] The high-temperature area is usually in the middle of the multiple battery cells 41, the low-temperature area is usually at the edge of the multiple battery cells 41, and the transition area is between the high-temperature area and the low-temperature area. Therefore, in order to improve the uniformity of the temperature distribution of the battery cells 41, the heat dissipation gap is gradually reduced from the high-temperature area to the low-temperature area, that is, from the middle to the edge of the multiple battery cells 41, so that the heat dissipation gap in the high-temperature area is larger than the heat dissipation gap in the low-temperature area, thereby increasing the heat dissipation space in the high-temperature area and preventing local high temperatures.

[0061] The heat dissipation gap may be the minimum distance between adjacent battery cells 41 ; setting the gap distance can limit the size of the heat dissipation gap, thereby avoiding a larger overall volume of the battery module while meeting the heat dissipation requirements between the battery cells 41 .

[0062] like Figure 10 As shown, the present invention also provides a logistics vehicle battery module heat dissipation control system, including:

[0063] A prediction module, which obtains initial heat dissipation control parameters based on the predicted temperature change of the battery cell 41 within a set future time;

[0064] Specifically, the prediction module can predict the temperature change of the battery cell 41 within a set time in the future based on the heat generated by the battery cell 41 and the heat dissipation capacity of the cooling system. The set time can be set to 5 seconds, that is, the temperature change within the next 5 seconds is predicted, and then the heat dissipation control parameters are optimized according to the temperature change to obtain the initial heat dissipation control parameters. The cooling system can be set on the vehicle body to dissipate heat for the battery module. It can be one or more combinations of liquid cooling and air cooling. Liquid cooling can be achieved by bonding a liquid cooling tube to the outer wall of the battery module and circulating a cooling medium for heat dissipation. Air cooling can use a fan to enhance air flow on the surface of the battery module.

[0065] The prediction module can predict the future temperature trend of the battery cell 41 and adjust the heat dissipation control parameters of the cooling system in advance to avoid delayed response and improve the timeliness of heat dissipation control to prevent the temperature of the battery cell 41 from being too high.

[0066] a correction module, which obtains a correction amount of the initial heat dissipation control parameter according to a predicted error between the actual temperature of the battery cell 41 and the predicted temperature and a rate of change of the error, and obtains a corrected heat dissipation control parameter according to the initial heat dissipation control parameter and the correction amount;

[0067] Specifically, the correction module mainly corrects the prediction error and error change rate of the prediction module. For example, the initial heat dissipation control parameters obtained by the prediction module may be affected by factors such as the environment, resulting in errors in the prediction results. Therefore, the correction module corrects the errors in real time, improves the heat dissipation control accuracy, and prevents the battery cell 41 from overheating.

[0068] an adjustment module for adjusting the corrected heat dissipation control parameter according to a difference between an actual temperature of the battery cell 41 with the highest temperature among the plurality of battery cells 41 and a target temperature;

[0069] Specifically, the adjustment module receives instructions from the correction module and performs a second correction on the battery cell 41 with the highest temperature. The battery cell 41 with the highest temperature usually appears in the high-temperature area. When the cooling system is arranged, it can be arranged and controlled separately for the high-temperature area. For example, liquid cooling pipes that can separately control the liquid cooling flow rate and fans that can separately control the speed can be arranged in the high-temperature area, so that the adjustment module can make separate adjustments to the local area.

[0070] The prediction module can generate initial heat dissipation control parameters, the correction module can correct the initial heat dissipation control parameters based on the real-time temperature feedback of the battery cell 41, and the adjustment module can further perform local adjustments to ensure the accuracy of the heat dissipation control parameters; it realizes the synchronous optimization control of heat dissipation efficiency, stability of the battery cell 41 temperature and reduction of energy consumption.

[0071] Furthermore, the prediction module includes:

[0072] A prediction unit, which predicts the temperature of the battery cell 41 at each moment within a set future time period to obtain a predicted temperature;

[0073] The optimization unit optimizes the current heat dissipation control parameters with the goal of minimizing the deviation between the target temperature and the predicted temperature and minimizing the energy consumption to obtain the initial heat dissipation control parameters.

[0074] Wherein, the heat dissipation control parameters include but are not limited to one or more of liquid cooling flow rate and fan speed;

[0075] The prediction unit can use any prediction method in the existing technology to predict the temperature of the battery cell 41, and the optimization unit can use any optimization method in the existing technology to optimize, with the aim of obtaining optimal heat dissipation control parameters while reducing heat dissipation energy consumption.

[0076] Furthermore, the correction module includes:

[0077] an acquisition unit, configured to acquire a predicted error and a rate of change of the error between the actual temperature and the predicted temperature of the battery cell 41;

[0078] The actual temperature of the battery cell 41 is obtained by temperature sensors disposed between the battery cells 41 . At least three temperature sensors are provided, that is, at least one is provided in each of the high temperature region, the transition region, and the low temperature region. The actual temperature of the battery cell 41 obtained may be the average temperature of the plurality of battery cells 41 .

[0079] The prediction error is: ;

[0080] The error change rate is: ;

[0081] in, For cell 41 The prediction error at time For cell 41 The actual temperature at the moment, For cell 41 The predicted temperature at the time, for The error rate of change at time, For cell 41 The prediction error at the moment;

[0082] The correction unit judges the prediction error and the error change rate based on the judgment rule to obtain the correction amount of the initial heat dissipation control parameter;

[0083] Fuzzy judgment rules can be used to establish a fuzzy rule base, and the fuzzy subsets are:

[0084] : {negative large, negative small, zero, positive small, positive large};

[0085] : {slow down, stabilize, speed up};

[0086] For example, it can be set to:

[0087] Negative big: ; small negative: ;zero: ; Positive small: Zhengda: ;

[0088] slow down: ;Stablize: ;accelerate: ;

[0089] based on and When the corresponding rule is triggered, there is a corresponding correction amount for the heat dissipation control parameter of each rule; for example, if the corresponding rule is triggered by positive decrease and acceleration, the corresponding correction amount is to increase the liquid cooling flow by 15%, then the corresponding correction amount of the initial heat dissipation control parameter can be obtained;

[0090] The output unit obtains a corrected heat dissipation control parameter according to the correction amount and the initial heat dissipation control parameter.

[0091] The output unit superimposes the correction amount on the initial heat dissipation control parameter to obtain the corrected heat dissipation control parameter.

[0092] The correction unit can be used to perform dynamic error correction on the initial heat dissipation control parameters, so as to reduce the disturbance of environmental factors and other factors on the initial heat dissipation control parameters obtained by the prediction module.

[0093] Furthermore, the adjustment module includes:

[0094] The judgment unit is configured to adjust the heat dissipation control parameter when the difference between the actual temperature of the battery cell 41 with the highest temperature among the multiple battery cells 41 and the target temperature is greater than the set difference;

[0095] The set difference can be set to 5°C, or within the range of 1°C-10°C as needed;

[0096] When the modified heat dissipation control parameter is used for control, if the difference between the actual temperature of the battery cell 41 with the highest temperature and the target temperature is detected to be greater than the set difference, the modified heat dissipation control parameter needs to be fine-tuned;

[0097] For example, the temperature zones of the multiple battery cells 41 during operation include a high-temperature zone, a transition zone, and a low-temperature zone. Each zone corresponds to a liquid cooling pipe that independently controls the liquid cooling flow rate or a fan that independently controls the speed. If the battery cell 41 with the highest temperature is in the high-temperature zone, only the liquid cooling flow rate or the fan speed in the liquid cooling pipe at the location of the battery cell 41 with the highest temperature, i.e., the high-temperature zone, is adjusted. Assuming that only one temperature sensor is provided in each of the three zones, the temperature of the battery cell 41 with the highest temperature is the temperature detected by the temperature sensor in the high-temperature zone.

[0098] The adjustment unit adjusts the heat dissipation control parameter by using PID control according to the difference between the actual temperature of the battery cell 41 with the highest temperature and the target temperature;

[0099] in, The actual temperature of the battery cell 41 with the highest temperature at that moment and target temperature The difference for: ;

[0100] PID controlled Time compensation for: ;

[0101] in, is the adaptive scale factor, , for The absolute value of

[0102] is the adaptive integral coefficient, , is a mathematical constant, From the initial moment To the current moment The sum of all differences;

[0103] is the adaptive differential coefficient, , The cell 41 with the highest temperature is The temperature change rate at time, , for The difference between the actual temperature of the battery cell 41 with the highest temperature at that moment and the target temperature;

[0104] The adjustment unit is based on PID control The compensation amount at the moment is used to adjust the cooling control parameters, and the compensation amount to be obtained is Superimposed with the heat dissipation control parameters to obtain the final heat dissipation control parameters.

[0105] The adjustment module adjusts the heat dissipation control parameters only when the temperature of a local battery cell 41 is too high, so as to improve the accuracy of heat dissipation control and temperature uniformity of multiple battery cells 41, and prevent the temperature of a local position inside the battery module from being too high and affecting its normal operation.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0107] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0108] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A battery module for a logistics vehicle with a guide structure, characterized in that: include: A housing assembly (1) is provided with a connector (2) for connecting to a vehicle body and a guide member (3) for positioning on the outside; a battery assembly (4) is provided on the inside of the housing assembly (1), and heat dissipation gaps are provided between the multiple battery cells (41) of the battery assembly (4); The guide member (3) comprises: a fixing plate (31) for connecting to the housing assembly (1), a limiting plate (32) arranged perpendicular to the fixing plate (31), guide plates (33) being provided at both ends of the limiting plate (32), and a guide groove (34) being formed between the guide plate (33) and the limiting plate (32); The battery assembly (4) comprises: a plurality of battery cells (41) arranged between a first bracket (42) and a second bracket (43); conductive sheets (44) are provided on the outside of the first bracket (42) and the second bracket (43); an adapter plate (45) for connecting to a protective plate (6) in the housing assembly (1) is provided on the outside of one of the conductive sheets (44); The first bracket (42) and the second bracket (43) are both provided with a plurality of mounting holes (46) corresponding to the two ends of the battery core (41), and the distance between adjacent mounting holes (46) is such that a heat dissipation gap exists between adjacent battery cores (41); The first bracket (42) is provided with a plurality of first connecting columns (421), and the second bracket (43) is provided with a plurality of second connecting columns (431) connected to the first connecting columns (421); the first connecting columns (421) and the second connecting columns (431) are arranged between adjacent mounting holes (46); The temperature regions of the multiple battery cells (41) during operation include a high temperature region, a transition region, and a low temperature region. The heat dissipation gap between adjacent battery cells (41) gradually decreases from the high temperature region to the low temperature region, and the maximum value of the heat dissipation gap is less than or equal to the set gap distance.

2. A logistics vehicle battery module heat dissipation control system, used to control the logistics vehicle battery module with a guide structure according to claim 1, characterized in that: include: A prediction module, which obtains initial heat dissipation control parameters based on the predicted temperature change of the battery cell (41) within a set future time; A correction module obtains a correction amount of the initial heat dissipation control parameter based on a prediction error between the actual temperature of the battery cell (41) and the predicted temperature and a rate of change of the error, and obtains a corrected heat dissipation control parameter based on the initial heat dissipation control parameter and the correction amount; The adjustment module adjusts the corrected heat dissipation control parameter according to the difference between the actual temperature of the battery cell (41) with the highest temperature among the multiple battery cells (41) and the target temperature.

3. The heat dissipation control system for the battery module of a logistics vehicle according to claim 2, characterized in that: The prediction module includes: A prediction unit, which predicts the temperature of the battery cell (41) at each moment within a set time in the future to obtain a predicted temperature; The optimization unit optimizes the current heat dissipation control parameters with the goal of minimizing the deviation between the target temperature and the predicted temperature and minimizing the energy consumption to obtain the initial heat dissipation control parameters.

4. The heat dissipation control system for the battery module of a logistics vehicle according to claim 2, characterized in that: The correction modules include: An acquisition unit, used to acquire a prediction error and an error change rate between the actual temperature of the battery cell (41) and the predicted temperature; The correction unit judges the prediction error and the error change rate based on the judgment rule to obtain the correction amount of the initial heat dissipation control parameter; The output unit obtains a corrected heat dissipation control parameter according to the correction amount and the initial heat dissipation control parameter.

5. The heat dissipation control system for the battery module of a logistics vehicle according to claim 2, characterized in that: The adjustment module includes: A judgment unit, when the difference between the actual temperature of the battery cell (41) with the highest temperature among the multiple battery cells (41) and the target temperature is greater than a set difference, it is necessary to adjust the correction heat dissipation control parameter; The adjustment unit uses PID control to adjust the corrected heat dissipation control parameters according to the difference between the actual temperature of the battery cell (41) with the highest temperature and the target temperature.

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