A temperature control structure and temperature control method based on lithium battery module management

Abstract

The present invention discloses a temperature control structure and a temperature control method for lithium battery module management, and the present invention relates to the field of battery management technology. The temperature control structure and the temperature control method for lithium battery module management, through the cooperation of a heating component and a driving component, when the temperature of the battery cell inside the box is too low, through the operation of the driving component, the limit shaft rod rotatably installed at the end of the annular frame can be pushed to move inside the corresponding annular groove while rotating around the corresponding rotating shaft until the two corresponding annular frames are closed to wrap the corresponding battery cell, and the battery cell is evenly heated. At the same time, when the battery temperature is too high, through the reverse rotation of the driving motor, the annular frames on both sides can be driven to shrink through the driving component, so that they are separated from the battery cell and fit with the inner wall of the box, ensuring the uniform heat dissipation effect of the battery cell inside the box, and improving the working efficiency and service life of the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery management, and in particular to a temperature control structure and a temperature control method for lithium battery module management. Background Art

[0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and non-aqueous electrolyte solution. Lithium metal battery was first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, researchers proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high requirements on the environment. With the development of science and technology, lithium batteries have become mainstream.

[0003] Lithium batteries are easily affected by the ambient temperature during use, especially when the ambient temperature causes the lithium battery temperature to be too high or too low, which will affect the use and life of the lithium battery and cause safety problems. Most of the existing temperature control methods are to use a heating plate to heat the battery cell when the battery cell temperature is too low to restore it to a normal operating temperature. When the battery cell temperature is too high, the inside of the module is cooled to meet the safety requirements for use. This method will cause uneven heating on the surface of the battery cell while heating the battery cell. When the temperature difference exceeds 5°, it is easy to affect the working efficiency and service life of the battery cell, and may cause safety accidents due to battery cell temperature problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a temperature control structure and a temperature control method for lithium battery module management, which solves the problem of difficulty in uniformly heating the battery cells.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a temperature control structure for lithium battery module management, including a box body, both sides of the box body are fixedly installed with lifting rings, the outer side of the box body is fixedly installed with a protective frame, the top surface of the box body is fixedly installed with a top plate by bolts, both sides of the box body are fixedly installed with heat dissipation fins, and the outer sides of the heat dissipation fins are fixedly installed with semiconductor refrigerators, a limiting component is arranged inside the box body, and a plurality of battery units are fixedly installed by the limiting component, and heating components are arranged on both sides of the box body, and the heating components The mounting positions of the plurality of battery cells correspond to each other respectively, the heating assembly comprises a fixed plate, auxiliary push plates are symmetrically mounted on both sides of the fixed plate, and a rotating shaft is rotatably mounted inside, two annular frames are rotatably mounted on the side of the fixed plate through the rotating shaft, the two annular frames are respectively rotatably mounted on the inner side of the corresponding fixed plate through the cooperation of the rotating shaft, and a spring body is fixedly mounted between the corresponding rotating shaft, the two annular frames correspond to each other, and the outer sides correspond to the corresponding auxiliary push plates respectively, the interiors of the two annular frames are provided with heating plates, and the spring body is fixedly mounted between the corresponding heating plates A pushing assembly is provided between the two annular frames, and a limiting shaft rod is rotatably installed at the ends of the two annular frames, and an elastic rib is fixedly installed between the two corresponding ends of the limiting shaft rods, and the installation position corresponds to the limiting assembly arranged inside the box body, and a driving assembly is arranged inside the box body, and the pushing assembly includes a positioning frame, and the positioning frame is fixedly installed on the outside of the annular frame, and a concave groove is provided inside the annular frame, and a rotating shaft is rotatably installed inside the concave groove, one end of the rotating shaft is fixedly sleeved with a transmission worm gear, and the other end of the rotating shaft is provided with a transmission crawler, and through the transmission The cooperation of the moving crawler and the corresponding limit shaft rod transmit mutual transmission, the end of the rotating shaft is fixedly sleeved with a transmission wheel, the interior of the positioning frame is fixedly installed with a limit shaft sleeve, the interior of the limit shaft sleeve is rotatably installed with a screw, the screw and the limit shaft sleeve and the transmission worm gear fixedly sleeved at the end of the rotating shaft are all meshed with each other, the end of the screw is rotatably installed with a limit push plate, the inner ends of the limit push plate are fixedly installed with annular plates, the inner ends of the two annular plates are fixedly installed with buffer springs, and the other ends of several of the buffer springs are fixedly connected to the inner sides of the corresponding heating plates.

[0006] Preferably, the limiting assembly includes a positioning plate, there are two positioning plates, and the two positioning plates are connected as a whole by plugging, and a charging and discharging interface is fixedly installed at the plug-in point of the two positioning plates, and a plurality of annular limiting seats are fixedly installed on the inner sides of the two positioning plates, and the plurality of annular limiting seats are symmetrical to each other and correspond to a plurality of battery cells respectively.

[0007] Preferably, conductive sheets are fixedly installed at the inner center positions of several of the annular limit seats, several of the conductive sheets are electrically connected to the charging and discharging interfaces through wires, temperature sensors are fixedly installed at the inner ring walls of several of the annular limit seats, annular grooves are opened on the inner sides of several of the annular limit seats, and annular racks are fixedly installed inside several of the annular grooves.

[0008] Preferably, the driving assembly includes a driving box, the driving box is fixedly installed on the middle part of the outer side of the box body, a driving motor is fixedly installed on the outer side of the driving box, a transmission rod is rotatably installed inside the driving box, and the end of the transmission rod is fixedly connected to the output end of the driving motor, threaded rods are rotatably installed on both sides of the inside of the box body, and transmission gears are fixedly sleeved on both ends of the threaded rods on both sides and the outer side of the circumference of the transmission rod, and the transmission rod and two corresponding threaded rods are meshed with each other through the cooperation of the transmission gears.

[0009] Preferably, the driving assembly further includes a transmission plate, and rectangular grooves are provided on both sides of the inner wall of the box body. There are two transmission plates, which are slidably installed in the corresponding rectangular grooves respectively. Thread grooves are provided at both ends of the two transmission plates, and they are respectively connected to the outer circumference of the threaded rods on both sides through the matching of the thread grooves.

[0010] Preferably, a plurality of the thread grooves are respectively meshed with corresponding threaded rods, and a plurality of limit grooves are symmetrically provided inside the two transmission plates.

[0011] Preferably, the inner walls of the auxiliary push plates fixedly installed on both sides of the fixing plates are all arc-shaped, and the arc-shaped surfaces of the auxiliary push plates are respectively fitted with the corresponding annular surfaces of the annular frames.

[0012] A temperature control method for lithium battery module management, comprising the following steps:

[0013] S1. Temperature monitoring: using a plurality of the temperature sensors to detect the temperatures of a plurality of the battery cells in real time, and transmitting the detected temperature values ​​to a control terminal;

[0014] S2, temperature control: when the temperature of the battery unit measured by the temperature sensor is higher than the set value, the control terminal controls the operation of the semiconductor refrigerator so that it can cool down the inside of the box by cooperating with the heat dissipation fins;

[0015] S3. Heating treatment: When the temperature of the battery cell measured by the temperature sensor is lower than the set value, the drive assembly is controlled to operate through the control terminal. Through the operation of the drive motor in the drive assembly, the transmission rod inside the drive box can be driven to rotate through its output end, thereby driving the threaded rods rotatably installed on both sides of the inner wall of the box to operate through the cooperation of several transmission gears, so that the transmission plates on both sides are driven to translate inward through rotation. By moving the transmission plates inward, several heating components arranged on the inner side can be driven to move toward the corresponding battery cell for heating treatment at the same time; when the corresponding fixed plate is pushed inward by the transmission plate, the corresponding annular frame can be pushed inward by the corresponding auxiliary push plate, so that the limiting shaft rod rotatably installed at its end moves inside the corresponding annular groove and rotates around the corresponding rotating shaft at the same time until the two corresponding annular frames are closed to wrap the corresponding battery cell, and when the limiting shaft rod is When the corresponding annular groove moves inside, the cooperation between the transmission wheel fixedly sleeved at its end and the annular rack fixedly installed inside the annular groove can drive the rotation of the limiting shaft rod, and then through its rotation and the cooperation of the transmission track, it can simultaneously drive the rotating shaft rotatably installed inside the corresponding annular frame to operate, so that it drives the corresponding screw to rotate inside the limiting shaft sleeve through rotation and the cooperation of the transmission worm gear at the end, so that the limiting push plate rotatably installed at its end can be pushed outward, and the movement of the limiting push plate can drive the annular plate fixedly installed on the side and the buffer spring fixedly installed at the end of the annular plate to move forward, and push the heating plate slidably arranged inside the annular frame forward, so that when the corresponding annular frame wraps the battery cell, the built-in heating plate can be pushed outward to fit with the outer surface of the corresponding battery cell, and then the battery cell is heated by the operation of the heating plate.

[0016] Beneficial Effects

[0017] The present invention provides a temperature control structure and a temperature control method for lithium battery module management. Compared with the prior art, the structure has the following advantages:

[0018] (1) The temperature control structure and temperature control method based on lithium battery module management, through the cooperation of the heating component and the driving component, when the temperature of the battery cell inside the box is too low, the operation of the driving component can drive the transmission plates on both sides to move inward, and then simultaneously push the corresponding auxiliary push plate through the corresponding fixed plate to push the corresponding annular frame inward, so that the limit shaft rod installed at its end moves inside the corresponding annular groove and rotates around the corresponding rotating shaft until the two corresponding annular frames are closed to wrap the corresponding battery cell, so that the battery cell is evenly heated. At the same time, when the battery temperature is too high, through the reverse rotation of the driving motor, the annular frames on both sides can be driven to shrink through the driving component, so that they are separated from the battery cell and fit with the inner wall of the box, thereby ensuring the uniform heat dissipation effect of the battery cell inside the box and improving the working efficiency and service life of the battery cell.

[0019] (2) The temperature control structure and temperature control method for lithium battery module management, through the setting of the pushing component, when the annular frames on both sides rotate inward to merge, the cooperation between the transmission wheel and the annular rack fixedly installed inside the annular groove can drive the rotation of the limit shaft rod, and then through its rotation and the cooperation of the transmission track, it can simultaneously drive the corresponding rotating shaft installed inside the annular frame to operate, so that it pushes the limit push plate outward through the transmission worm gear and the screw, thereby pushing the built-in heating plate outward to make it fit with the corresponding battery unit outer surface, and then the battery unit is heated by the operation of the heating plate, which improves the heating speed of the battery unit and can effectively protect the heating plate to avoid collision and other damage to the heating plate during the operation of the equipment or battery unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the transmission assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the ring frame structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the fixing plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the enlarged structure of point A of the present invention;

[0027] Figure 8 This is a schematic cross-sectional view of the annular frame of the present invention;

[0028] Fig. 9 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0029] In the figure: 1, box body; 101, lifting ring; 102, rectangular groove; 103, heat dissipation fin; 1031, semiconductor refrigerator; 2, protective frame; 3, drive box; 301, transmission rod; 302, threaded rod; 303, transmission gear; 304, drive motor; 4, top plate; 5, battery unit; 6, positioning plate; 7, annular limit seat; 701, conductive sheet; 702, annular groove; 703, temperature sensor; 8, charging and discharging interface; 9, transmission plate; 901, limit groove; 902, threaded rod Grooves; 10. fixed plate; 1001. auxiliary push plate; 1002. rotating shaft; 1003. spring body; 11. annular frame; 1101. limiting shaft rod; 1102. elastic rib; 1103. transmission wheel; 1104. concave groove; 1105. rotating shaft; 1106. transmission track; 1107. transmission worm gear; 12. positioning frame; 1201. limiting sleeve; 1202. screw; 13. limiting push plate; 1301. annular plate; 1302. buffer spring; 14. heating plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-9The present invention provides a technical solution: a temperature control structure for lithium battery module management, comprising a box body 1, both sides of the box body 1 are fixedly installed with lifting rings 101, the outer side of the box body 1 is fixedly installed with a protective frame 2, the top surface of the box body 1 is fixedly installed with a top plate 4 by bolts, both sides of the box body 1 are fixedly installed with heat dissipation fins 103, and the outer sides of the heat dissipation fins 103 are fixedly installed with semiconductor refrigerators 1031, a limiting component is arranged inside the box body 1, and a plurality of battery cells 5 are fixedly installed through the limiting component, both sides of the box body 1 are provided with heating components, and the heating components correspond to the installation positions of the plurality of battery cells 5, respectively, and the heating components include a fixing plate 10, and both sides of the fixing plate 10 are symmetrically installed with auxiliary push plates 10 01, and a rotating shaft 1002 is rotatably installed inside, two annular frames 11 are rotatably installed on the side of the fixed plate 10 through the rotating shaft 1002, the two annular frames 11 are respectively rotatably installed on the inner side of the corresponding fixed plate 10 through the cooperation of the rotating shaft 1002, and a spring body 1003 is fixedly installed between the corresponding rotating shaft 1002, the two annular frames 11 correspond to each other, and the outer sides correspond to the corresponding auxiliary push plates 1001, the interiors of the two annular frames 11 are both provided with heating plates 14, and a pushing assembly is provided between the corresponding heating plates 14, the ends of the two annular frames 11 are rotatably installed with limiting shaft rods 1101, and elastic tendons 1102 are fixedly installed between the ends of the two corresponding limiting shaft rods 1101, and the installation position is The limiting components arranged inside the box body 1 correspond to each other. A driving component is arranged inside the box body 1. The pushing component includes a positioning frame 12. The positioning frame 12 is fixedly installed on the outer side of the annular frame 11. A concave groove 1104 is opened inside the annular frame 11, and a rotating shaft 1105 is rotatably installed inside the concave groove 1104. A transmission worm gear 1107 is fixedly sleeved on one end of the rotating shaft 1105. A transmission track 1106 is arranged on the other end of the rotating shaft 1105. The transmission is mutually transmitted with the corresponding limiting shaft rod 1101 through the cooperation of the transmission track 1106. A transmission wheel 1103 is fixedly sleeved on the end of the rotating shaft 1105. A limiting shaft sleeve 1201 is fixedly installed inside the positioning frame 12, and a worm gear 1107 is rotatably installed inside the limiting shaft sleeve 1201. The rod 1202, the screw 1202 and the limiting sleeve 1201 and the transmission worm gear 1107 fixedly sleeved at the end of the rotating shaft 1105 are all meshed with each other, the end of the screw 1202 is rotatably installed with a limiting push plate 13, and both ends of the inner side of the limiting push plate 13 are fixedly installed with annular plates 1301, both ends of the inner sides of the two annular plates 1301 are fixedly installed with buffer springs 1302, and the other ends of several buffer springs 1302 are fixedly connected to the inner side of the corresponding heating plate 14, the limiting component includes a positioning plate 6, there are two positioning plates 6, and the two positioning plates 6 are connected as a whole by plugging, and the plug-in joint of the two positioning plates 6 is fixedly installed with a charging and discharging interface 8, and the inner sides of the two positioning plates 6 are fixedly installed with several annular limiting seats 7,The plurality of annular limit seats 7 are symmetrical with each other and correspond to the plurality of battery cells 5 respectively. The inner center positions of the plurality of annular limit seats 7 are all fixedly installed with conductive sheets 701. The plurality of conductive sheets 701 are electrically connected to the charging and discharging interfaces 8 through wires respectively. The inner ring walls of the plurality of annular limit seats 7 are all fixedly installed with temperature sensors 703. The inner sides of the plurality of annular limit seats 7 are all provided with annular grooves 702. The interiors of the plurality of annular grooves 702 are all fixedly installed with annular racks.

[0032] The driving assembly includes a driving box 3, which is fixedly installed on the middle part of the outer side of the box body 1. A driving motor 304 is fixedly installed on the outer side of the driving box 3. A transmission rod 301 is rotatably installed inside the driving box 3, and the end of the transmission rod 301 is fixedly connected to the output end of the driving motor 304. Threaded rods 302 are rotatably installed on both sides of the inside of the box body 1. Transmission gears 303 are fixedly sleeved on both ends of the threaded rods 302 on both sides and the outer side of the circumference of the transmission rod 301. The transmission rod 301 and two corresponding threaded rods 302 are meshed with each other through the cooperation of the transmission gears 303. The driving assembly also includes a transmission plate 9. Rectangular grooves 102 are opened on both sides of the inner wall of the box body 1. There are two transmission plates 9, which are slidably installed in the corresponding rectangular grooves 102 respectively. Both ends of the two transmission plates 9 are provided with threaded grooves 902, and are respectively sleeved on the circumferential outer sides of the threaded rods 302 on both sides through the matching of the threaded grooves 902. Several threaded grooves 902 are respectively meshed with the corresponding threaded rods 302. Several limiting grooves 901 are symmetrically provided inside the two transmission plates 9. The inner walls of the auxiliary push plates 1001 fixedly installed on both sides of the fixing plates 10 are all arc-shaped. The arc surfaces of the several auxiliary push plates 1001 are respectively fitted with the corresponding annular surfaces of the annular frames 11. The driving motor 304 in the driving assembly is an existing forward and reverse motor. When the driving motor 304 is turned on, the When the transmission rod 301 and a plurality of transmission gears 303 drive the two threaded rods 302 to rotate simultaneously, the two threaded rods 302 rotate in the same direction, and can simultaneously drive the transmission plates 9 on both sides to translate toward the middle through the cooperation of the threaded grooves 902 opened in the opposite direction and the threaded rods 302, and the translation distances of the transmission plates 9 on both sides are the same according to the number of rotations of the output end of the driving motor 304; the straight-line distance at the openings of the two corresponding annular frames 11 is equal to the diameter length of the battery unit 5, and when the corresponding annular frames 11 are pushed to fit inwardly, the transmission wheel 1103 installed at the end of the limit shaft 1101 installed rotatably at its end meshes with the annular rack fixedly installed inside the annular groove 701 The two couplings are meshed with each other, so that the limit shaft 1101 can rotate while winding the elastic rib 1102 installed on the outside until the two corresponding limit shafts 1101 remain fixed and fit together. The corresponding elastic ribs 1102 are arranged inside the annular rack. The semiconductor refrigerator 1031 is an existing device. By connecting two different metals with a conductor and connecting direct current, the temperature at one contact point decreases and the temperature at the other contact point increases, thereby cooling the inside of the box body 1. The control terminal is a control component connected by electronic components such as a single chip, and controls a number of temperature sensors 703, a drive motor 304 and a semiconductor refrigerator 1031 through program settings.

[0033] When in use, temperature monitoring: a plurality of temperature sensors 703 are used to detect the temperature of a plurality of battery cells 5 in real time, and the detected temperature values ​​are transmitted to the control terminal; temperature regulation: when the temperature of the battery cell 5 measured by the temperature sensor 703 is higher than the set value, the control terminal controls the operation of the semiconductor refrigerator 1031, so that it cooperates with the heat dissipation fins 103 to cool the inside of the box body 1; heating treatment: when the temperature of the battery cell 5 measured by the temperature sensor 703 is lower than the set value, the control terminal controls the operation of the drive component, and through the operation of the drive motor 304 in the drive component, it can be output through its output The output end drives the transmission rod 301 inside the driving box 3 to rotate, thereby driving the threaded rod 302 rotatably installed on both sides of the inner wall of the box body 1 to run through the cooperation of several transmission gears 303, so that the transmission plates 9 on both sides are driven to translate inward through rotation. By the transmission plates 9 moving inward, several heating components arranged on the inner side can be driven to move toward the corresponding battery cells 5 for heating treatment at the same time; when the corresponding fixing plate 10 is pushed inward by the transmission plate 9, the corresponding annular frame 11 can be pushed inward by the corresponding auxiliary push plate 1001, so that the limiting shaft rod 1101 rotatably installed at its end is in the corresponding annular groove 70 2, and rotates around the corresponding rotating shaft 1002 until the two corresponding annular frames 11 are closed to wrap the corresponding battery unit 5. When the limiting shaft rod 1101 moves inside the corresponding annular groove 702, the cooperation between the transmission wheel 1103 fixedly sleeved at its end and the annular rack fixedly installed inside the annular groove 702 can drive the rotation of the limiting shaft rod 1101, and then through its rotation and the cooperation of the transmission crawler 1106, it can simultaneously drive the rotation shaft 1105 rotatably installed inside the corresponding annular frame 11 to run, so that it drives the corresponding The screw 1202 rotates inside the limiting sleeve 1201, so that the limiting push plate 13 rotatably installed at its end can be pushed outward, and the movement of the limiting push plate 13 can drive the annular plate 1301 fixedly installed on the side and the buffer spring 1302 fixedly installed at the end of the annular plate 1301 to move forward, and the heating plate 14 slidingly set inside the annular frame 11 is pushed forward, so that when the corresponding annular frame 11 wraps the battery cell 5, the built-in heating plate 14 can be pushed outward to make it fit with the corresponding outer surface of the battery cell 5, and then the battery cell 5 is heated by the operation of the heating plate 14.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature control structure for lithium battery module management, comprising a box (1), both sides of the box (1) are fixedly mounted with lifting rings (101), the outer side of the box (1) is fixedly mounted with a protective frame (2), the top surface of the box (1) is fixedly mounted with a top plate (4) by bolts, both sides of the box (1) are fixedly mounted with heat dissipation fins (103), and the outer sides of the heat dissipation fins (103) are fixedly mounted with semiconductor refrigerators (1031), characterized in that: A limit assembly is provided inside the box (1), and a plurality of battery units (5) are fixedly mounted via the limit assembly; heating assemblies are provided on both sides of the box (1), and the heating assemblies correspond to the mounting positions of the plurality of battery units (5); The heating assembly comprises a fixed plate (10), auxiliary push plates (1001) are symmetrically mounted on both sides of the fixed plate (10), and a rotating shaft (1002) is rotatably mounted inside the fixed plate (10), two annular frames (11) are rotatably mounted on the side of the fixed plate (10) via the rotating shaft (1002), the two annular frames (11) are respectively rotatably mounted on the inner side of the corresponding fixed plate (10) via the rotating shaft (1002), and a spring body (1003) is fixedly mounted between the corresponding rotating shaft (1002), and the two annular frames (11) are mutually connected. The two annular frames (11) correspond to each other, and the outer sides correspond to the auxiliary push plates (1001) on both sides, the interiors of the two annular frames (11) are provided with heating plates (14), and a pushing assembly is provided between the corresponding heating plates (14), the ends of the two annular frames (11) are rotatably mounted with limit shafts (1101), and elastic ribs (1102) are fixedly mounted between the ends of the two corresponding limit shafts (1101), and the mounting positions correspond to the limit assemblies provided inside the box body (1), and the interior of the box body (1) is provided with a driving assembly; The pushing assembly comprises a positioning frame (12), wherein the positioning frame (12) is fixedly mounted on the outside of the annular frame (11), wherein a concave groove (1104) is provided inside the annular frame (11), and a rotating shaft (1105) is rotatably mounted inside the concave groove (1104), wherein one end of the rotating shaft (1105) is fixedly sleeved with a transmission worm gear (1107), and the other end of the rotating shaft (1105) is provided with a transmission crawler (1106), and the transmission is mutually transmitted with the corresponding limiting shaft rod (1101) through the cooperation of the transmission crawler (1106), and the end of the rotating shaft (1105) is fixedly sleeved with a transmission wheel (1103), and the interior of the positioning frame (12) is fixedly sleeved with a transmission worm gear (1107). A limit sleeve (1201) is installed, a screw rod (1202) is rotatably installed inside the limit sleeve (1201), the screw rod (1202) and the limit sleeve (1201) and the transmission worm gear (1107) fixedly sleeved at the end of the rotating shaft (1105) are all meshed with each other, a limit push plate (13) is rotatably installed at the end of the screw rod (1202), an annular plate (1301) is fixedly installed at both ends of the inner side of the limit push plate (13), buffer springs (1302) are fixedly installed at both ends of the inner sides of the two annular plates (1301), and the other ends of a plurality of buffer springs (1302) are fixedly connected to the inner side of the corresponding heating plate (14); The limiting assembly comprises a positioning plate (6), wherein there are two positioning plates (6), and the two positioning plates (6) are connected as a whole by plugging, and a charging and discharging interface (8) is fixedly installed at the plugging point of the two positioning plates (6), and a plurality of annular limiting seats (7) are fixedly installed on the inner sides of the two positioning plates (6), and the plurality of annular limiting seats (7) are symmetrical to each other and correspond to the plurality of battery cells (5) respectively; Conductive sheets (701) are fixedly mounted at the inner center positions of the plurality of annular limit seats (7), the plurality of conductive sheets (701) are electrically connected to the charging and discharging interfaces (8) via wires, temperature sensors (703) are fixedly mounted on the inner ring walls of the plurality of annular limit seats (7), annular grooves (702) are formed on the inner sides of the plurality of annular limit seats (7), and annular racks are fixedly mounted inside the plurality of annular grooves (702); The drive assembly comprises a drive box (3), the drive box (3) being fixedly mounted on the middle part of the outer side of the box body (1), a drive motor (304) being fixedly mounted on the outer side of the drive box (3), a transmission rod (301) being rotatably mounted inside the drive box (3), and an end of the transmission rod (301) being fixedly connected to an output end of the drive motor (304), threaded rods (302) being rotatably mounted on both sides of the inner side of the box body (1), transmission gears (303) being fixedly sleeved on both ends of the threaded rods (302) on both sides and on the outer side of the circumference of the transmission rods (301), and the transmission rod (301) and two corresponding threaded rods (302) being meshed with each other through the cooperation of the transmission gears (303); The driving assembly further comprises a transmission plate (9), the inner walls of the housing (1) are provided with rectangular grooves (102) on both sides, the transmission plates (9) are provided with two plates, and are respectively slidably mounted inside the corresponding rectangular grooves (102), the two ends of the two transmission plates (9) are provided with thread grooves (902), and the thread grooves (902) are respectively sleeved on the circumferential outer sides of the threaded rods (302) on both sides through the matching of the thread grooves (902), and a plurality of the thread grooves (902) are respectively meshed with the corresponding threaded rods (302), and a plurality of limit grooves (901) are symmetrically provided inside the two transmission plates (9), and the inner walls of the auxiliary push plates (1001) fixedly mounted on both sides of the fixing plate (10) are all arc-shaped, and the arc-shaped surfaces of the auxiliary push plates (1001) are respectively fitted with the corresponding annular surfaces of the annular frame (11).

2. A temperature control method for lithium battery module management, characterized in that: The temperature control structure for lithium battery module management according to claim 1 comprises the following steps: S1, temperature monitoring: using a plurality of the temperature sensors (703), real-time detection of the temperatures of a plurality of the battery cells (5) is performed, and the detected temperature values ​​are transmitted to a control terminal; S2, temperature control: when the temperature of the battery unit (5) measured by the temperature sensor (703) is higher than the set value, the semiconductor refrigerator (1031) is controlled to operate through the control terminal, so that it cooperates with the heat dissipation fins (103) to cool the inside of the box (1); S3, heating treatment: when the temperature of the battery unit (5) measured by the temperature sensor (703) is lower than the set value, the driving assembly is controlled to operate through the control terminal, and the driving motor (304) in the driving assembly is operated, so that the transmission rod (301) inside the driving box (3) can be driven to rotate through its output end, thereby driving the threaded rods (302) rotatably installed on both sides of the inner wall of the box body (1) to operate through the cooperation of a plurality of transmission gears (303), so that the transmission plates (9) on both sides are driven to translate inwardly through the rotation, and the transmission plates (9) are moved inwardly, so that a plurality of transmission gears (303) arranged inside can be driven to translate inwardly at the same time. The heating components are moved toward the corresponding battery cells (5) to heat them; when the corresponding fixing plate (10) is pushed inward by the transmission plate (9), the corresponding annular frame (11) can be pushed inward by the corresponding auxiliary push plate (1001), so that the limiting shaft rod (1101) installed at its end moves inside the corresponding annular groove (702) and rotates around the corresponding rotating shaft (1002) until the two corresponding annular frames (11) are closed to wrap the corresponding battery cells (5). When the limiting shaft rod (1101) is in the corresponding annular groove (702), the battery cells (5) are covered with a heat treatment agent. While the inner portion moves, the cooperation between the transmission wheel (1103) fixedly sleeved at its end and the annular rack fixedly installed inside the annular groove (702) can drive the rotation of the limit shaft rod (1101), and then through its rotation and the cooperation of the transmission crawler (1106), it can simultaneously drive the rotation shaft (1105) rotatably installed inside the corresponding annular frame (11) to operate, so that through the rotation and the cooperation of the end transmission worm gear (1107), the corresponding screw rod (1202) is driven to rotate inside the limit shaft sleeve (1201), so that the limit push plate (1105) rotatably installed at its end can be driven to rotate. 13) is pushed outward, and the movement of the limiting push plate (13) can drive the annular plate (1301) fixedly installed on the side and the buffer spring (1302) fixedly installed on the end of the annular plate (1301) to move forward, so as to push the heating plate (14) slidably arranged inside the annular frame (11) forward, so that when the corresponding annular frame (11) wraps the battery unit (5), the built-in heating plate (14) can be pushed outward to make it fit with the outer surface of the corresponding battery unit (5), and then the battery unit (5) can be heated by the operation of the heating plate (14).

Images