Large low-temperature battery mounting method and transfer mounting tool

Abstract

The invention provides a large low-temperature battery mounting method and a transfer mounting tool, and belongs to the technical field of large low-temperature battery mounting methods. The invention discloses a large low-temperature battery mounting method which is used for meeting low-temperature dust-free operation requirements in a transfer mounting scene. Comprising the steps of checking, hoisting, moving, exiting, fixing and the like, and installation of all battery packs is completed. According to the low-temperature battery transferring and mounting tool, one end of a forking assembly is connected with a mounting plate, and the other end of the forking assembly is inserted into hanging lugs on the two sides of a battery pack to pick up the battery pack; the levelness detection assembly is arranged on the forking assembly; the positioning linkage assembly is installed on the fork assembly and used for guiding a positioning pin on the cluster frame to be inserted into a corresponding positioning hole in the bottom of the battery pack so as to assist in positioning and fixing the battery pack. The problems that a conventional battery pack transferring and mounting mode cannot meet the low-temperature dust-free operation requirement, and mounting errors and potential safety hazards are increased due to the fact that the operation flexibility of operators in the low-temperature environment is reduced are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of large-scale cryogenic battery installation methods, and more specifically, relates to a large-scale cryogenic battery installation method and a transfer and installation tooling. Background Art

[0002] In the energy storage field, with the continuous expansion of the application scenarios of energy storage systems, some energy storage devices need to be installed and deployed in a low-temperature and dust-free environment, such as some special industrial energy storage scenarios, energy storage systems supporting high-precision electronic devices, etc. At present, for the transfer and installation of battery packs in the industry, the conventional forklift lifting and transfer method is usually adopted. First, the battery packs are placed on the bracket manually or with simple tools, and then the battery packs are transferred to the cluster rack by a forklift for installation. During the installation process, the position of the battery pack is mainly adjusted by the on-site operation of the operator and fixed. However, the existing technology has obvious deficiencies in meeting the requirements of low-temperature and dust-free operations. During the conventional transfer and installation process, the dust condition on the surface of the battery pack is not specifically inspected, and no special design is made for the operation of the operator and the operation of the equipment in the low-temperature environment. It is easy to cause the dust attached to the surface of the battery pack to enter the subsequent installation link, affecting the overall performance of the energy storage battery cluster. At the same time, the low-temperature environment will reduce the operation flexibility of the operator. If no corresponding protection measures are taken, it may also increase the installation error and even cause potential safety hazards, and cannot meet the high-precision and high-safety requirements for battery transfer and installation in the low-temperature and dust-free scenario. Summary of the Invention

[0003] The purpose of the present invention is to provide a large-scale cryogenic battery installation method to solve the problems in the existing technology that the conventional battery pack transfer and installation method cannot adapt to the requirements of low-temperature and dust-free operations, is easy to affect the performance of the energy storage battery cluster due to dust residue, and the operation flexibility of the operator decreases in the low-temperature environment, resulting in an increase in installation error and potential safety hazards, and it is difficult to meet the high-precision and high-safety installation requirements.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a large-scale cryogenic battery installation method for transfer and installation scenarios that meet the requirements of low-temperature and dust-free operations, including: Step 1: Inspection; the assembled battery packs are placed on the bracket in an orderly manner at a preset interval and in a unified orientation. Before transfer, confirm that the surface of the battery pack is free of dust and the structure is intact. Step 2: Lifting; move the forklift to the front of the bracket, adjust the distance between the forklift forks so that the fork distance matches the distance between the two hanging ears on both sides of the battery pack. After the forks are inserted into the hanging ears, lift the battery pack horizontally. Step 3: Movement; operate the forklift, move the battery pack to the cluster rack, align it with the installation position, and lower the battery pack until the bottom is close to the installation surface of the cluster rack. Step 4: Exit; Keep the battery pack in a stable position, operate the forklift to slowly and horizontally disengage the forks from the lugs; Step 5: Secure; The operator, wearing low-temperature dust-free protective equipment, uses tools to secure the battery pack, maintaining an ambient temperature of -20℃ to 0℃ and a dust concentration of ≤0.3mg / m³ during the securing process; Step 6: Repeat steps 2-5 to complete the installation of all battery packs according to the preset number of battery packs and the order of the upper and lower layers of the cluster frame, forming an energy storage battery cluster.

[0005] To achieve the above objectives, the present invention further adopts the following technical solution: A cryogenic battery transfer and installation fixture is provided for implementing the aforementioned large cryogenic battery installation method. The fixture includes a connecting frame, a mounting plate, a lifting assembly, a forklift assembly, a levelness detection assembly, and an adjustment assembly. The connecting frame is located at the front end of a forklift. The mounting plate is vertically and flexibly mounted on the connecting frame. The lifting assembly is mounted on the connecting frame and connected to the mounting plate, used to drive the mounting plate to rise and fall. One end of the forklift assembly is connected to the mounting plate, and the other end is used to insert into the lugs on both sides of the battery pack to lift the battery pack. The levelness detection assembly is located on the forklift assembly and used to detect the levelness of the forklift assembly. The adjustment assembly is located between the connecting frame and the lifting assembly and used to adjust its own tilt angle to control the levelness of the levelness detection assembly.

[0006] The beneficial effects of the large-scale cryogenic battery installation method provided by this invention are as follows: Compared with the prior art, the beneficial effects of this large-scale cryogenic battery installation method are significant. First, through dust and structural inspections before transportation, and precise operations during lifting, moving, and removal, dust entry into the installation process and battery pack position deviation are effectively avoided, ensuring the accurate installation position of the battery pack on the cluster frame, reducing the performance loss of the energy storage battery cluster due to installation errors, and improving the overall system operational stability. Second, the fixing steps clearly require operators to wear cryogenic dust-free protective equipment and strictly control the ambient temperature and dust concentration, ensuring that the entire installation process fully meets the special requirements of cryogenic dust-free operation scenarios, avoiding the impact of the cryogenic environment on operator operations and dust interference on battery performance, thus broadening the application scenarios of the battery installation method. Finally, the operational specifications such as horizontal lifting and low-speed withdrawal of the forklift reduce the risk of damage to the battery pack during transportation and installation; the sequential installation from top to bottom and the column-by-column approach makes the installation process more organized, improving overall installation efficiency, while the use of cryogenic protective equipment also ensures the personal safety of operators.

[0007] The beneficial effects of the new low-temperature battery transfer and installation fixture provided by this invention are as follows: First, through the real-time cooperation of the level detection component and the adjustment component, the level state of the forklift component can be maintained throughout the process, effectively avoiding problems such as battery pack lifting deviation, movement and shaking, or scratching during withdrawal caused by the tilt of the forklift component, ensuring the precise position of the battery pack in each stage of transfer and installation, further guaranteeing the installation accuracy of the energy storage battery cluster, and reducing subsequent performance problems caused by installation deviation. Second, this transfer tool reduces the number of manual steps required for operators to adjust the level of the forklift components. Especially in low-temperature environments, where operators' operational flexibility decreases after wearing protective gear, the tool's automated adjustment function can significantly reduce the intensity of manual operations. It also shortens the preparation time before each transfer and the adjustment time during the transfer process, thereby improving overall operational efficiency. Third: The smooth transfer process reduces the risk of battery pack collision damage and also reduces the safety hazards faced by operators due to the need for emergency adjustments caused by battery pack displacement, thus balancing equipment safety and personnel safety. Fourth: By adjusting the components flexibly and adapting the forklift assembly to different lug spacings, this transfer tooling is suitable for the transfer and installation of battery packs of various specifications. There is no need to customize tooling for different battery packs, which reduces equipment investment costs. At the same time, the detachable connection design between the tooling and the forklift facilitates the storage, maintenance and replacement of the tooling, which improves the practical value and service life of the tooling. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of a large-scale cryogenic battery installation method provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a cryogenic battery transfer and installation fixture provided in another embodiment of the present invention; Figure 3 This is a schematic diagram showing the positional structure of the connecting frame and the fork assembly provided in another embodiment of the present invention; Figure 4 This is a schematic diagram of the positional structure of the fork and the levelness detection component provided in another embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first guide rail, the first slider, the hydraulic cylinder, and the side plate provided in another embodiment of the present invention; Figure 6 Provided for yet another embodiment of the present invention Figure 5 The schematic diagram of the structure at position A described in the figure; Figure 7 This is a schematic diagram showing the positional structure of the hanging ear and positioning hole provided in another embodiment of the present invention; Figure 8 This is a schematic diagram of the positional structure of the column and guide rail mounting assembly provided in another embodiment of the present invention; Figure 9 This is a schematic diagram of the position structure of the positioning linkage component and the second guide rail provided in another embodiment of the present invention; Figure 10 This is a structural schematic diagram of the positioning linkage component provided in another embodiment of the present invention from another angle; The labels for the attached figures are as follows: 10. Battery pack; 101. Hook; 102. Positioning hole; 20. Cluster frame; 21. Column; 22. Guide rail mounting assembly; 221. Second guide rail; 30. Connecting frame; 40. Mounting plate; 41. Mounting part; 42. Second groove; 50. Lifting assembly; 51. Base plate; 52. Gantry; 53. Lifting frame; 54. Crossbar; 55. Sprocket; 56. Chain; 57. Drive unit; 60. Fork assembly; 61. Fork rod; 611. Fixing part; 612. Supporting part; 62. First groove; 63. Limiting block; 70. Levelness detection component; 71. Base; 72. Infrared levelness detector; 80. Positioning linkage component; 81. Guide column; 82. Bracket; 83. Connecting rod; 84. Positioning pin; 85. Elastic element; 86. Driven block; 90. Adjustment assembly; 91. Hydraulic cylinder; 92. Side plate; 93. Arc groove; 94. Scale; 100. Guide component; 1001. First guide rail; 1002. First slider. Detailed Implementation

[0010] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0011] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0012] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0013] The present invention will now describe a method for installing a large cryogenic battery and a transfer and installation fixture.

[0014] like Figure 1 As shown, the first embodiment of the present invention provides a method for installing large-scale cryogenic batteries, for transport and installation scenarios that meet the requirements of cryogenic and dust-free operations, including: Step 1: Inspection; The assembled battery packs 10 are placed in an orderly manner on the bracket according to the preset spacing and uniform orientation. Before transportation, confirm that the surface of the battery packs 10 is free of dust and the structure is intact. Step 2: Lifting; Move the forklift to the front of the bracket, adjust the spacing between the forklift forks 61 so that the spacing between the forklift forks 61 matches the distance between the hanging ears 101 on both sides of the battery pack 10, and after the forklift forks 61 are inserted into the hanging ears 101, lift the battery pack 10 horizontally. Step 3: Move; Operate the forklift to move the battery pack 10 to the cluster rack 20, align it with the mounting position and lower the battery pack 10 until the bottom is close to the mounting surface of the cluster rack 20; Step 4: Exit; Keep the battery pack 10 in a stable position, operate the forklift so that the fork 61 exits the lug 101 at low speed and horizontally; Step 5: Secure; The operator, wearing low-temperature dust-free protective equipment, uses tools to secure the battery pack 10. During securing, maintain the ambient temperature at -20℃~0℃ and the dust concentration at ≤0.3mg / m³. Step 6: Repeat steps 2-5, installing the battery packs 10 onto the cluster racks 20 sequentially from top to bottom. After installing one row of cluster racks 20, move the forklift to install the next row of cluster racks 20 to form an energy storage battery cluster.

[0015] This large-scale cryogenic battery installation method is designed for the specific needs of cryogenic and dust-free operating environments. It achieves precise transport and installation of the battery pack 10 through standardized, step-by-step operations. First, a pre-transport inspection is performed to ensure that the battery packs 10 on the bracket are placed in an orderly manner with preset spacing and uniform orientation. Simultaneously, it is confirmed that the surface of the battery pack 10 is free of dust and its structure is intact, preventing dust interference and structural damage before the battery pack 10 enters the installation process. Next, the lifting step is performed. The forklift fork 61 is adjusted according to the spacing of the lugs 101 on both sides of the battery pack 10, ensuring precise matching between the fork 61 and the lugs 101 before horizontal lifting to prevent the battery pack 10 from shifting or being damaged during lifting. Finally, the moving step involves using a forklift to move the battery pack 10 to the corresponding installation position on the cluster frame 20, slowly lowering it until the bottom of the battery pack 10 is close to the mounting surface of the cluster frame 20, ensuring the initial installation position. Alignment is then performed; followed by the exit step, while maintaining the stable position of the battery pack 10, the forklift fork 61 is controlled to exit the lug 101 at low speed horizontally to avoid collision with the battery pack 10 during the exit process, which could cause positional displacement; next, the fixing step is performed, with the operator wearing low-temperature dust-free protective equipment and using special tools to fix the battery pack 10, while strictly controlling the working environment temperature to -20℃~0℃ and the dust concentration ≤0.3mg / m³ to ensure the accuracy of the fixing process and the cleanliness of the environment; finally, by repeating steps 2-5, the battery packs 10 on the cluster frame 20 are installed sequentially from top to bottom, and after completing the installation of one row, the forklift is moved to install the next row, finally forming a qualified energy storage battery cluster.

[0016] Compared with existing technologies, firstly, by conducting dust and structural inspections before transportation, and through precise operations during lifting, moving, and removal, dust entry into the installation process and misalignment of the battery pack 10 are effectively avoided. This ensures the precise installation position of the battery pack 10 on the cluster frame 20, reduces performance loss of the energy storage battery cluster due to installation errors, and improves the overall system operational stability. Secondly, the fixing process explicitly requires operators to wear low-temperature dust-free protective equipment and strictly controls the ambient temperature and dust concentration, ensuring that the entire installation process fully meets the special requirements of low-temperature dust-free operation scenarios. This avoids the impact of the low-temperature environment on operator operations and the interference of dust on battery performance, broadening the application scenarios of the battery installation method. Finally, the standardized operating procedures, such as horizontal lifting and low-speed removal of the fork 61, reduce the risk of damage to the battery pack 10 during transportation and installation. The sequential installation from top to bottom and the column-by-column approach make the installation process more organized, improving overall installation efficiency. At the same time, the use of low-temperature protective equipment also ensures the personal safety of operators.

[0017] like Figures 2 to 10As shown, the second embodiment of the present invention provides a cryogenic battery transfer and installation fixture for implementing the above-mentioned large cryogenic battery installation method. It includes a connecting frame 30, a mounting plate 40, a lifting assembly 50, a forklift assembly 60, a levelness detection assembly 70, and an adjustment assembly 90. The connecting frame 30 is disposed at the front end of a forklift. The mounting plate 40 is movably mounted on the connecting frame 30. The lifting assembly 50 is disposed on the connecting frame 30 and connected to the mounting plate 40, used to drive the mounting plate 40 to rise and fall. One end of the forklift assembly 60 is connected to the mounting plate 40, and the other end is used to insert into the lugs 101 on both sides of the battery pack 10 to lift the battery pack 10. The levelness detection assembly 70 is disposed on the forklift assembly 60 and used to detect the levelness of the forklift assembly 60. The adjustment assembly 90 is disposed between the connecting frame 30 and the lifting assembly 50 and used to adjust its own tilt angle to control the levelness of the levelness detection assembly 70.

[0018] This cryogenic battery transfer and installation fixture mainly consists of five core components: a connecting frame 30, a mounting plate 40, a lifting assembly 50, a forklift assembly 60, a levelness detection assembly 70, and an adjustment assembly 90. The connecting frame 30 serves as the basic support structure of the fixture, fixedly mounted at the front of the forklift, providing a mounting platform for other components. The mounting plate 40 is jacked up and down and mounted on the connecting frame 30, serving as the direct mounting platform for the forklift assembly 60. The lifting assembly 50 is mounted on the connecting frame 30 and connected to the mounting plate 40, used to lift the mounting plate 40. One end of the forklift assembly 60 is fixedly connected to the mounting plate 40, while the other end is designed to fit the lugs 101 on both sides of the battery pack 10, allowing it to be inserted into the lugs 101 to lift the battery pack 10. The levelness detection assembly 70 is mounted on the forklift assembly 60 and can monitor the levelness of the forklift assembly 60 in real time. The adjustment assembly 90 is located between the connecting frame 30 and the lifting assembly 50, controlling the levelness monitored by the levelness detection assembly 70 by adjusting its own tilt angle.

[0019] The working process of this embodiment is as follows: First, the operator securely installs the connecting frame 30 at the front of the forklift, completing the assembly of the tooling and the forklift. Before entering the lifting stage, the initial level state of the forklift assembly 60 is detected by the levelness detection component 70. If the forklift assembly 60 is detected to be tilted, the adjustment component 90 is activated. The adjustment component 90 indirectly adjusts the force balance of the lifting component 50 by changing its own tilt angle between the connecting frame 30 and the lifting component 50, thereby driving the mounting plate 40 to make a fine adjustment, and finally making the forklift assembly 60 reach a level state, so as to avoid the battery pack 10 shifting during lifting due to the tilt of the forklift assembly 60. Subsequently, the forklift is moved to the front of the bracket, and the forklift assembly 60 is aligned with the lugs 101 on both sides of the battery pack 10 according to the spacing between them. The free end of the forklift assembly 60 is then inserted into the lugs 101 of the battery pack 10. At this time, the lifting assembly 50 is activated, which slowly raises the mounting plate 40. The mounting plate 40 simultaneously raises the forklift assembly 60, achieving horizontal lifting of the battery pack 10. Furthermore, because the horizontality of the forklift assembly 60 has been calibrated beforehand, the battery pack 10 remains stable during the lifting process.

[0020] During the movement, the forklift is used to move the battery pack 10 to the mounting position of the cluster rack 20. Throughout this process, the levelness detection component 70 continuously monitors the levelness of the forklift assembly 60. If the forklift assembly 60 tilts due to slight road bumps or other factors, the adjustment component 90 will respond in real time, quickly adjusting the tilt angle to maintain the forklift assembly 60's levelness, ensuring the battery pack 10 remains stable during movement. Upon reaching the mounting position, the lifting component 50 controls the mounting plate 40 to slowly descend, gradually bringing the bottom of the battery pack 10 closer to the mounting surface of the cluster rack 20, completing the lowering action. After the lowering is completed, keep the lifting assembly 50 and the mounting plate 40 in a fixed position, and operate the forklift to slowly reverse, allowing the forklift assembly 60 to exit the battery pack 10 mounting lug 101 at a low speed and horizontally. During the exit process, the levelness detection assembly 70 and the adjustment assembly 90 remain in working condition to prevent the forklift assembly 60 from tilting and scratching the battery pack 10. After the forklift assembly 60 is completely exited, the tooling completes this transfer task and can be moved with the forklift to the next battery pack 10 installation position. Repeat the above workflow to assist in the transfer and installation of subsequent battery packs 10.

[0021] Compared with existing technologies, firstly, by coordinating the levelness detection component 70 and the adjustment component 90 in real time, the horizontal state of the forklift component 60 can be maintained throughout the process, effectively avoiding problems such as lifting deviation, movement and swaying, or scratching during the removal of the battery pack 10 due to the tilt of the forklift component 60. This ensures the precise position of the battery pack 10 in each stage of transportation and installation, further guaranteeing the installation accuracy of the energy storage battery cluster and reducing subsequent performance problems caused by installation deviations. Second, this transfer tool reduces the number of manual steps required for operators to adjust the forklift assembly to a 60-degree horizontal position. Especially in low-temperature environments, where operators' operational flexibility decreases after wearing protective gear, the tool's automated adjustment function can significantly reduce the intensity of manual operations. It also shortens the preparation time before each transfer and the adjustment time during the transfer process, thereby improving overall operational efficiency. Third: The smooth transfer process reduces the risk of collision damage to battery pack 10, and also reduces the safety hazards faced by operators due to the need for emergency adjustments caused by the displacement of battery pack 10, thus taking into account both equipment safety and personnel safety. Fourth: By adjusting the flexible adjustment of component 90 and the design of forklift component 60 to adapt to different lug spacings 101, this transfer tooling can be used for the transfer and installation of battery packs 10 of various specifications. There is no need to customize tooling for different battery packs 10, which reduces equipment investment costs. At the same time, the detachable connection design between the tooling and the forklift facilitates the storage, maintenance and replacement of the tooling, which improves the practical value and service life of the tooling.

[0022] like Figures 2 to 4 As shown, the cryogenic battery transfer and installation fixture provided in the second embodiment of the present invention includes a fork assembly 60 comprising two forks 61, which are horizontally spaced apart. Each fork 61 includes a vertically arranged fixing part 611 and a horizontally arranged supporting part 612. Each supporting part 612 has an arc-shaped structure at one end away from the lifting assembly 50. A plurality of first grooves 62 are spaced apart on any fork 61, and the plurality of first grooves 62 are distributed along the length direction of the fork 61 to reduce the friction between the fork 61 and the battery pack 10 hanging lug 101.

[0023] To facilitate positioning the battery pack by the fork, limit blocks 63 are respectively provided at the bottom of the two forks 61. The limit blocks 63 are inverted trapezoidal structures and are used to abut against the end of the battery pack 10. That is, when the battery pack 10 is lifted from the lug by the fork, the end of the battery pack 10 abuts against the limit block 63, which proves that the fork has reached the correct depth, thus facilitating installation.

[0024] The fork-lifting assembly 60 includes two horizontally spaced forks 61. Each fork 61 consists of a vertically arranged fixing part 611 and a horizontally arranged supporting part 612, forming an "L"-shaped structure. At the end of each supporting part 612 away from the lifting assembly 50, an arc-shaped structure is designed to avoid sharp edges at the end. At the same time, on the surface of any fork 61, a plurality of first grooves 62 are spaced apart along the length of the fork 61. The grooves are evenly distributed in the area where the fork 61 contacts the battery pack 10 hanging ear 101 to optimize the contact state between the fork 61 and the hanging ear 101.

[0025] First, before the lifting process, the operators adjust the horizontal spacing of the two forks 61 according to the distance between the lugs 101 on both sides of the battery pack 10, so that the support parts 612 of the two forks 61 correspond to the positions of the lugs 101 on both sides of the battery pack 10. At this time, the fixing part 611 of the fork 61 plays a connecting role, stably fixing the support part 612 on the mounting plate 40, ensuring that the support part 612 remains in a horizontal state (in conjunction with the preliminary calibration of the levelness detection component 70 and the adjustment component 90). Subsequently, the forklift is operated to move the tooling closer to the battery pack 10, causing the support portion 612 of the two forks 61 to advance towards the lug 101. Since the end of the support portion 612 away from the lifting assembly 50 is an arc-shaped structure, during the advancement process, the arc-shaped structure can prevent the sharp end from scratching the inner wall of the lug 101 or the outer shell of the battery pack 10, reducing resistance and risk of damage during contact; when the support portion 612 is fully inserted into the lug 101, the horizontal structure of the support portion 612 provides stable support for the battery pack 10, and the fixing portion 611, through a firm connection with the mounting plate 40, transfers the weight of the battery pack 10 to the lifting assembly 50, preparing for subsequent lifting. During the lifting and moving process, the fixed part 611 and the supporting part 612 of the fork 61 maintain a stable connection, ensuring that the battery pack 10 rises and moves smoothly under the drive of the lifting assembly 50. The multiple first grooves 62 on the fork 61 play a role in this process: the grooves reduce the contact area between the fork 61 and the inner wall of the lug 101, and at the same time create a gap in the contact area, which can reduce the friction between the two. Especially in low temperature environments, the friction of metal parts is prone to increase due to low temperature. The groove design can effectively alleviate this problem and prevent the lug 101 from deforming due to excessive friction during lifting or moving, or affecting the relative positional stability of the fork 61 and the lug 101. Once the placement phase is complete and the fork 61 is withdrawn, the forklift is slowly reversed, moving the fork 61 away from the lug 101. At this point, the arc-shaped structure again functions, guiding the support part 612 smoothly away from the lug 101 and preventing end jamming. Simultaneously, the first groove 62 continuously reduces friction during the withdrawal process, allowing the fork 61 to withdraw from the lug 101 at a low speed and smoothly. This prevents uneven frictional resistance from causing the battery pack 10 to shift position, ensuring the continuity of the withdrawal action with the overall installation process.

[0026] like Figures 3 to 7 As shown, the cryogenic battery transfer and installation fixture provided in the second embodiment of the present invention includes a lifting assembly 50 comprising a base plate 51, a gantry 52, a lifting frame 53, a crossbar 54, sprockets 55, chains 56, and a drive component 57. The base plate 51 is disposed on the upper surface of the connecting frame 30, and one end of the base plate 51 is hinged to the connecting frame 30. The gantry 52 is a frame structure and is vertically disposed on the base plate 51. The lifting frame 53 is slidably disposed within the gantry 52, and the mounting plate 40 is slidably disposed on the lifting frame 53. The crossbar 54 is horizontally disposed at the top of the lifting frame 53, and the crossbar 54 moves up and down along the height direction of the lifting frame 53. Two sprockets 55 are rotatably disposed at both ends of the crossbar 54. Two chains 56 are disposed one-to-one with the two sprockets 55, and the first end of each chain 56 is connected to the mounting plate 40, and the second end is connected to the lifting frame 53. The drive component 57 is vertically disposed at the bottom of the lifting frame 53, and the output end of the drive component 57 is connected to the crossbar 54.

[0027] The lifting assembly 50 includes a base plate 51, a gantry 52, a lifting frame 53, a crossbar 54, two sprockets 55, two chains 56, and a drive unit 57. The base plate 51 serves as the basic load-bearing structure, located on the upper surface of the connecting frame 30, with one end hinged to the connecting frame 30, allowing for rotational adjustment at a certain angle. The gantry 52 is a frame structure, vertically fixed to the base plate 51, providing sliding guidance for the lifting frame 53. The lifting frame 53 is slidably assembled inside the gantry 52, capable of moving up and down along the height direction of the gantry 52, while the mounting plate 40 is slidably mounted on the lifting frame 53. The crossbar 54 is horizontally mounted on the top of the lifting frame 53, rising and falling with the lifting frame 53 and independently adjustable along the height direction of the lifting frame 53. Two sprockets 55 are rotatably mounted at both ends of the crossbar 54, serving as the core components for the chain 56 transmission. The two chains 56 correspond one-to-one with the two sprockets 55, with the first end of each chain 56 connected to the mounting plate 40 and the second end fixed to the lifting frame 53. The drive unit 57 is vertically mounted at the bottom of the lifting frame 53, with its output end connected to the crossbar 54, providing power for the lifting and lowering of the crossbar 54.

[0028] In the overall operation process of the cryogenic battery transfer and installation fixture, the components of the lifting assembly 50 work together according to the following logic to achieve precise lifting and lowering of the battery pack 10: First, during the fixture assembly stage, one end of the base plate 51 is hinged to the connecting frame 30, and the other end is adjusted by adjusting the tilt angle through the adjusting assembly 90 to ensure that the gantry 52 is perpendicular to the horizontal direction, providing a stable reference for subsequent lifting actions. At this time, the lifting frame 53 is initially at the bottom position of the gantry 52, the crossbar 54 is at the initial height of the top of the lifting frame 53, the chain 56 is in a slack state, and the mounting plate 40 is at the low position of the lifting frame 53. When the lifting process begins and the battery pack 10 needs to be raised, the drive unit 57 is activated. The output end of the drive unit 57 extends upward, pushing the crossbar 54 upward along the height direction of the lifting frame 53. The sprockets 55 at both ends of the crossbar 54 rise synchronously with the crossbar 54. Since one end of the chain 56 is fixed to the lifting frame 53 and the other end is connected to the mounting plate 40, the sprockets 55 will tighten the chain 56 during the upward movement, thereby causing the mounting plate 40 to slide upward along the lifting frame 53. The mounting plate 40 is connected to the forklift assembly 60, which supports the battery pack 10. Therefore, the rise of the mounting plate 40 will synchronously drive the battery pack 10 to rise smoothly, realizing the lifting action. During the upward movement, the gantry 52 guides the lifting frame 53, preventing the lifting frame 53 from deviating and ensuring that the battery pack 10 always rises in a vertical direction. If it is necessary to adjust the lifting height of the battery pack 10 or maintain height stability during movement, the height of the crossbar 54 can be adjusted by controlling the extension and retraction of the output end of the drive component 57: when the output end of the drive component 57 extends, the crossbar 54 rises, and the chain 56 pulls the mounting plate 40 upward; when the output end of the drive component 57 retracts, the crossbar 54 descends, the chain 56 slackens, and the mounting plate 40 slowly descends along the lifting frame 53, thereby achieving a smooth lowering of the battery pack 10. When the battery pack 10 is lowered to the bottom and close to the mounting surface of the cluster frame 20, the drive component 57 stops working, and the crossbar 54 and the mounting plate 40 maintain their current positions, providing stable support for the subsequent withdrawal of the forklift assembly 60 and the fixing of the battery pack 10. Furthermore, since the base plate 51 is hinged to the connecting frame 30, when the level detection component 70 detects a slight tilt in the forklift component 60, the adjustment component 90 can adjust the tilt angle of the base plate 51 to drive the gantry 52 and the lifting frame 53 to make synchronous fine adjustments. This, in conjunction with the level detection component 70, enables the level calibration of the forklift component 60, ensuring that the battery pack 10 remains level during the lifting process and avoiding deviation or tilting.

[0029] Compared with existing technologies, the transmission cooperation of the drive component 57, crossbar 54, sprocket 55, and chain 56 allows for precise control of the lifting speed and height of the mounting plate 40, preventing sudden rises and falls or height deviations of the battery pack 10 during lifting or lowering. Simultaneously, the guiding effect of the gantry 52 on the lifting frame 53 ensures that the mounting plate 40 rises and falls along a fixed trajectory, further guaranteeing the precise alignment of the battery pack 10 at the installation position on the cluster frame 20, reducing installation errors, and improving the overall installation accuracy of the energy storage battery cluster. The combined structure of the frame-type gantry 52 and the sliding lifting frame 53 provides stable support and guidance for the lifting action, preventing the lifting frame 53 from swaying or deviating during lifting. The transmission method of the chain 56 and sprocket 55 has high load-bearing capacity and stability, effectively avoiding the risk of the battery pack 10 falling due to transmission failure. Furthermore, the drive component 57 enables smooth control of the lifting process, preventing the battery pack 10 from shaking due to component jamming even in low-temperature environments, ensuring operational safety. The lifting mechanism 50 is controlled by a single button via the drive unit 57, eliminating the need for manual adjustment and reducing the workload for operators. This is especially beneficial in low-temperature environments where operators wear protective gear and their dexterity is reduced, significantly simplifying the operation process. Furthermore, precise lifting control minimizes rework caused by improper height adjustments, shortens the time required for each battery pack 10 transfer and installation, and effectively improves overall operational efficiency.

[0030] like Figures 2 to 7As shown, the second embodiment of the present invention provides a method for installing a large cryogenic battery. The adjustment component 90 includes a hydraulic cylinder 91 and a side plate 92. Two hydraulic cylinders 91 are respectively disposed on both sides of the middle part of the lifting frame 53. The cylinder body of each hydraulic cylinder 91 is hinged to the connecting frame 30, and the piston rod of the hydraulic cylinder 91 is hinged to the corresponding side of the lifting frame 53. Two side plates 92 are respectively disposed on both sides of the base plate 51. Each side plate 92 is provided with an arc-shaped groove 93. A round rod is provided at the second end of the base plate 51. After the free end of the round rod extends into the arc-shaped groove 93, it slides and adapts to the arc-shaped groove 93. A pointer is provided on the outer side of the free end of the round rod, and a scale 94 is provided on the edge of the arc-shaped groove 93 corresponding to the pointer.

[0031] The adjustment assembly 90 comprises two hydraulic cylinders 91, two side plates 92, a round rod, a pointer, and a scale 94. The two hydraulic cylinders 91 are symmetrically arranged on the left and right sides of the center of the lifting frame 53. The cylinder body of each hydraulic cylinder 91 is hinged to the connecting frame 30, and the piston rod is hinged to the corresponding side of the lifting frame 53. The extension and retraction of the piston rod adjusts the tilt angle of the lifting frame 53. The two side plates 92 are fixed to the left and right sides of the base plate 51, respectively. Each side plate 92 has an arc-shaped groove 93, the curvature of which matches the rotation trajectory of the base plate 51. A round rod is fixedly installed at the second end of the base plate 51, away from the end hinged to the connecting frame 30. The free end of the round rod extends into the arc-shaped groove 93, forming a sliding connection with the arc-shaped groove 93 and fitting well. A pointer is installed on the outside of the free end of the round rod, and a clear scale 94 is engraved on the edge of the arc-shaped groove 93 corresponding to the pointer, used to visually display the change in the tilt angle of the base plate 51.

[0032] During the operation of the cryogenic battery transfer and installation fixture, the adjustment component 90 is used in conjunction with the levelness detection component 70 to calibrate the levelness of the forklift assembly 60. Its workflow and operating principle are as follows: First, before the initial assembly of the fixture or before each transfer of the battery pack 10, the levelness detection component 70 will detect the levelness of the forklift assembly 60 in real time. If a tilt is detected in the forklift assembly 60, the adjustment component 90 needs to be activated for calibration. At this point, the operator first observes the initial position of the pointer on the outer side of the round rod on the arc groove 93 scale 94 to determine the current tilt direction and angle of the substrate 51. If the fork assembly 60 tilts to the left, it indicates that the left side of the lifting frame 53 is too low and the right side is too high. It is necessary to control the piston rod of the right hydraulic cylinder 91 to extend and the piston rod of the left hydraulic cylinder 91 to retract. When the piston rod of the right hydraulic cylinder 91 extends, it will generate an upward thrust on the right side of the lifting frame 53. When the piston rod of the left hydraulic cylinder 91 retracts, it will generate an upward pull on the left side of the lifting frame 53. The two work together to drive the lifting frame 53 to rotate slightly around the hinge point, thereby adjusting the horizontal state of the lifting frame 53.

[0033] During the adjustment of the lifting frame 53, the gantry 52, mounting plate 40, and forklift assembly 60 connected to the lifting frame 53 will adjust synchronously. Simultaneously, the second end of the base plate 51 will oscillate slightly with the rotation of the lifting frame 53. The round rod fixed to the second end of the base plate 51 will slide along the arcuate groove 93 on the side plate 92, and the pointer on the outer side of the round rod will move with the rod, indicating the new position on the scale 94 at the edge of the arcuate groove 93. The operator can monitor the change in the tilt angle of the base plate 51 in real time through the coordination of the pointer and the scale 94, thereby precisely controlling the extension and retraction of the piston rod of the hydraulic cylinder 91. If the forklift assembly 60 tilts slightly again due to factors such as road bumps or equipment vibration during the transfer of the battery pack 10, the levelness detection assembly 70 will send a signal in time. The adjustment assembly 90 can repeat the above process. Through the extension and retraction of the hydraulic cylinder 91, the sliding of the round rod along the arc groove 93, and the real-time feedback of the pointer and scale 94, the secondary calibration is quickly completed to ensure that the forklift assembly 60 always remains in a level state. Furthermore, since the base plate 51 is hinged to the connecting frame 30, the trajectory of the round rod sliding along the arc groove 93 is completely consistent with the rotation trajectory of the base plate 51. The arc groove 93 guides and limits the round rod, preventing the base plate 51 from shifting or shaking during the adjustment process and ensuring the stability of the adjustment process. At the same time, the cooperation between the pointer and the scale 94 allows operators to intuitively and accurately grasp the adjustment progress without relying on complex instruments, greatly improving the adjustment efficiency.

[0034] Compared with existing technologies, the symmetrical arrangement and coordinated extension and retraction of two hydraulic cylinders 91 allow for fine and controllable tilt angle adjustments to the lifting frame 53. Combined with the guiding and limiting functions of the round rod and arc-shaped groove 93, and the intuitive feedback from the pointer and scale 94, the horizontal error of the forklift assembly 60 can be controlled within a minimal range. This effectively prevents the battery pack 10 from shifting or tilting during transport due to horizontal deviations, further ensuring the installation accuracy of the battery pack 10. Furthermore, the hydraulic cylinders 91 use a hinged connection between the connecting frame 30 and the lifting frame 53, which can adapt to slight thermal expansion and contraction of components in low-temperature environments, avoiding damage caused by rigid connections. The sliding connection of the round rod and arc-shaped groove 93 has good compatibility, maintaining smooth sliding even in low-temperature environments without jamming due to low temperatures. This ensures stable operation of the adjustment assembly 90 in low-temperature environments ranging from -20℃ to 0℃, guaranteeing the overall reliability of the tooling.

[0035] like Figures 3 to 7As shown, the cryogenic battery transfer and installation fixture provided in the second embodiment of the present invention further includes a guide member 100. The guide member 100 is used to guide the crossbar 54 to move along the height direction of the lifting frame 53. The guide member 100 includes a first guide rail 1001 and a first slider 1002. The two first guide rails 1001 are respectively vertically arranged on the top of the lifting frame 53. The two first sliders 1002 are respectively arranged at both ends of the crossbar 54 and are slidably connected to and adapted to the corresponding first guide rails 1001.

[0036] The guide assembly includes two first guide rails 1001 and two first sliders 1002. The two first guide rails 1001 are symmetrically distributed and vertically fixed on both sides of the top of the lifting frame 53. The length direction of the guide rails is completely aligned with the height direction of the lifting frame 53, providing a fixed guide path for the movement of the crossbar 54. The two first sliders 1002 correspond one-to-one with the two first guide rails 1001. The two first sliders 1002 are fixedly installed at both ends of the crossbar 54, and the inner side of each first slider 1002 has a groove adapted to a guide rail, forming a tight sliding connection with the corresponding first guide rail 1001, ensuring smooth movement of the slider along the guide rail without significant wobbling.

[0037] When the lifting assembly 50 needs to lift the battery pack 10, the output end of the drive unit 57 extends upward, applying an upward thrust to the crossbar 54. At this time, the first sliders 1002 at both ends of the crossbar 54 will slide upward along the first guide rails 1001 vertically arranged on both sides of the top of the lifting frame 53 under the action of the thrust. Since the first guide rails 1001 are aligned with the height direction of the lifting frame 53, and the first sliders 1002 are adapted to slide with the guide rails, the sliders will strictly follow the extension direction of the guide rails to drive the crossbar 54 to make a vertical upward movement, avoiding the crossbar 54 from shifting left or right or tilting forward or backward during the upward movement, and ensuring that the crossbar 54 always remains horizontal. During the ascent of the crossbar 54, the sprockets 55 at both ends rise vertically in sync with the crossbar 54, thereby pulling the mounting plate 40 up along the lifting frame 53 via the chain 56, ultimately achieving the smooth lifting of the battery pack 10. Throughout this process, the guiding components continuously function: the first guide rail 1001, through its sliding engagement with the slider, provides stable guiding constraints for the crossbar 54, preventing deviations in the crossbar 54's trajectory from the preset direction due to uneven thrust from the drive component 57, differences in chain tension, or slight deformation of components under low-temperature conditions. When the battery pack 10 needs to be lowered, the output end of the drive unit 57 retracts, generating a downward pulling force on the crossbar 54. The first sliders 1002 at both ends of the crossbar 54 slide vertically downward along the first guide rail 1001. Under the guidance of the guide rail, the crossbar 54 is ensured to descend smoothly, and then the chain 56 drives the mounting plate 40, the fork assembly 60 and the battery pack 10 to be slowly lowered to the designated position. In addition, when the adjusting component 90 performs level calibration and causes the lifting frame 53 to tilt slightly, the first guide rail 1001 of the guide component will be finely adjusted synchronously with the lifting frame 53. However, since the guide rail is always fixed vertically to the top of the lifting frame 53, its guiding direction to the crossbar 54 will also be adjusted synchronously with the tilt angle of the lifting frame 53, ensuring that the crossbar 54 can move stably along the current height direction of the lifting frame 53 in any tilt state, without affecting the normal operation of the lifting component 50.

[0038] Without the guide assembly, when pushing or pulling the crossbar 54, the drive component 57 must simultaneously bear the weight of the crossbar 54, the tension of the chain 56, and the additional torque generated by lateral offset, which can easily lead to overload damage to the drive component 57. The guide assembly, through the guiding action of the guide rail and slider, can transfer the lateral force of the crossbar 54 to the guide rail, allowing the drive component 57 to only provide driving force along the height direction of the lifting frame 53. This significantly reduces the load pressure on the drive component 57, decreases the probability of overload failure in low-temperature environments, and extends the service life of the drive component 57 and the entire lifting assembly 50.

[0039] Compared with existing technologies, the guide assembly has a simple structure, consisting only of a guide rail and a slider. During installation, the guide rail is simply fixed vertically to the top of the lifting frame 53 and the slider is fixed to both ends of the crossbar 54, without the need for a complicated calibration process. In daily maintenance, only the wear of the guide rail and slider needs to be checked periodically, without the need to disassemble and repair complex parts, which greatly reduces the difficulty of installation and debugging and the cost of later maintenance, and improves the overall ease of use of the tooling.

[0040] like Figures 2 to 6 As shown, the cryogenic battery transfer and installation fixture provided in the second embodiment of the present invention has a square structure for the mounting plate 40, and a mounting part 41 is arranged horizontally in the middle of the mounting plate 40. The mounting part 41 is provided with a second groove 42 along its length direction. The top end of the fixing part 611 of the fork assembly 60 is detachably mounted on the mounting part 41.

[0041] Based on the spacing between the lugs 101 on both sides of the battery pack 10 to be transported, the operator determines the required installation spacing of the forklift assembly 60. Since the top of the fixing part 611 of the forklift assembly 60 is detachably connected to the mounting part 41, the top of the fixing part 611 is first aligned with the second groove 42 of the mounting part 41. The fixing part 611 is then moved along the length of the groove according to the required spacing. The second groove 42 not only provides a guide for the fixing part 611, but its inner wall can also be equipped with positioning scales 94 or positioning holes 102 to help the operator accurately control the spacing between the two fixing parts 611 of the forklift assembly 60, ensuring that the spacing perfectly matches the spacing between the lugs 101 of the battery pack 10. After the fixing part 611 is moved to the target position, the top of the fixing part 611 is detachably fixed to the mounting part 41 by bolt tightening, snap-fitting, etc., completing the assembly of the forklift assembly 60 and the mounting plate 40.

[0042] Once the transfer operation begins, the main body of the mounting plate 40 plays a crucial role: when the lifting assembly 50 drives the lifting frame 53 to rise and fall, the lifting frame 53 and the main body of the mounting plate 40 form a sliding fit, causing the main body of the mounting plate 40 to rise and fall synchronously; the main body of the mounting plate 40 transmits the lifting force to the fixing part 611 of the forklift assembly 60 through the mounting part 41 in the middle, and then from the fixing part 611 to the forklift assembly 60, ultimately achieving the smooth lifting and lowering of the battery pack 10 by the forklift assembly 60. During this process, the square mounting plate 40 can evenly distribute the weight of the battery pack 10 across the entire plate surface, avoiding localized stress concentration that could lead to deformation. At the same time, the horizontally arranged mounting part 41 and the second groove 42 ensure that the force direction of the fixing part 611 of the forklift assembly 60 is consistent with the lifting direction, reducing force loss and deviation. If a different specification of battery pack 10 needs to be replaced, simply disassemble the connecting structure at the top of the fixing part 611 of the forklift assembly 60, adjust the spacing of the fixing part 611 along the second groove 42, and re-fix it to adapt to the new specification forklift assembly 60. There is no need to replace the entire mounting plate 40. When adjusting the assembly 90 for level calibration, the square structure of the main body of the mounting plate 40 can maintain its own posture stability. The rigid connection between the mounting part 41 and the fixing part 611 of the forklift assembly 60 can accurately transmit the tilt adjustment force of the lifting frame 53 to the forklift assembly 60, ensuring that the forklift assembly 60 is adjusted synchronously with the level calibration and always maintains a level state.

[0043] Compared with the prior art, the second groove 42 of the mounting part 41 provides adjustment space along the length direction for the fixing part 611 of the fork assembly 60. With the detachable connection structure, the installation spacing of the fork assembly 60 can be flexibly adjusted to adapt to battery packs 10 with different hanging ear 101 spacings. There is no need to customize the mounting plate 40 and fork assembly 60 combination for each type of battery pack 10, which greatly reduces the tooling adaptation cost and inventory pressure.

[0044] The detachable connection between the fixing part 611 and the mounting part 41 of the forklift assembly 60 allows for assembly and disassembly without complex tools. In low-temperature, dust-free environments, when operators are wearing heavy protective gear, the simplified operation process reduces installation and adjustment time. If the forklift assembly 60 malfunctions, it can be replaced simply by removing the fixing part 611, without disassembling the main body of the mounting plate 40, thus reducing maintenance difficulty and downtime.

[0045] like Figure 4 As shown, the levelness detection assembly 70 includes a base 71 and an infrared levelness detector 72. The base 71 is disposed on the lower surface of one of the forks 61, and the infrared levelness detector 72 is disposed on the base 71, with the detection surface of the infrared levelness detector 72 facing the bottom surface of the battery pack 10.

[0046] The levelness detection assembly 70 mainly consists of two core components: a base 71 and an infrared levelness detector 72. The base 71, made of low-temperature resistant metal, serves as the mounting carrier and is fixed to the lower surface of one of the forks 61 by bolts or welding. Its installation position avoids the contact area between the fork 61 and the battery pack 10's mounting lug 101, ensuring it does not interfere with the normal operation of the fork assembly 60. The infrared levelness detector 72 is the core detection component, mounted on the base 71 via a detachable connection (such as bolt fixing or slot adaptation). Its detection surface precisely faces the bottom surface of the battery pack 10, emitting infrared light and receiving reflected signals to monitor the relative levelness between the bottom surface of the battery pack 10 and the detection surface in real time.

[0047] like Figures 4 to 10 As shown, the cryogenic battery transfer and installation fixture also includes a positioning linkage component 80, which is detachably mounted on the cluster frame 20 and is provided with a positioning pin 84 to cooperate with the positioning hole on the battery pack 10 to assist in positioning and fixing the battery pack 10.

[0048] The cluster frame 20 includes multiple uprights 21 and multiple guide rail mounting groups 22. The multiple uprights 21 are arranged sequentially to form multiple upright rows, and each upright row is parallel to the others. Each guide rail mounting group 22 includes two second guide rails 221. The two second guide rails 221 of each guide rail mounting group 22 are respectively connected to the uprights 21 of two adjacent upright rows. The multiple guide rail mounting groups 22 are arranged sequentially along the height direction of the upright rows. The guide rail mounting groups 22 are used to place the battery pack 10. Each second guide rail 221 is provided with a positioning linkage component 80, which is used to assist in the positioning and fixing of the battery pack 10.

[0049] Specifically, multiple columns 21 are arranged linearly in sequence to form multiple parallel columns; each guide rail mounting group 22 includes two parallel second guide rails 221, which are connected to the corresponding height columns 21 of two adjacent columns by bolts or welding, and multiple guide rail mounting groups 22 are distributed at equal intervals along the height direction of the column rows to form a multi-layer mounting platform. The two guide rails of each layer of guide rail mounting group 22 jointly support a battery pack 10. The second guide rail 221 is provided with multiple mounting holes to correspond to the positioning holes on the battery pack, and the battery pack 10 is fixed to the second guide rail 221 by bolts or other fasteners.

[0050] Each second guide rail 221 is equipped with a positioning linkage assembly 80, which includes a guide post 81, a bracket 82, a connecting rod 83, a positioning pin 84, an elastic element 85, and a driven block 86. The bracket 82 is connected and fixed to the lower surface of the second guide rail 221 via detachable connection methods such as temporary welding, bolting, or magnetic attraction. Its middle section is rotatably connected to the connecting rod 83 via a pivot, forming a lever structure. The first end of the connecting rod 83 is hinged to the guide post 81, which passes through the second guide rail 221 and is adapted to the mounting hole on the second guide rail 221. The driven block 86 is detachably mounted at its top for easy replacement after wear or as needed. The driven block 86 can be an elastic rubber block with an inclined sliding surface on one side, or other elastic components. The component is designed to prevent it from getting stuck in the mounting hole on the second guide rail 221 while also having a certain deformation capacity. This prevents the battery pack 10 from being forcibly pressed down and causing damage to components such as the connecting rod 83 when the positioning pin 84 is not aligned with the positioning hole on the battery pack 10. The second end of the connecting rod 83 is hinged to the positioning pin 84, which also passes through the second guide rail 221 and slides to fit the second guide rail 221. The top end is designed as a frustum structure, and a slot is vertically opened in the middle of the frustum structure. An elastic element 85 is installed in the slot, and the two ends of the elastic element 85 are fixedly connected to the two side walls of the slot, respectively.

[0051] Before transferring the battery pack 10, ensure that all components of the cluster frame 20 are installed in place: the column row remains vertical and stable, the two second guide rails 221 of the guide rail mounting assembly 22 are at the same horizontal height, and the positioning linkage assembly 80 on the second guide rail 221 is in its initial state. At this time, the elastic element 85 naturally extends, and a horizontal outward preload is applied to the positioning pin 84 through the slot, so that the frustum-shaped structure at the top of the positioning pin 84 abuts against the inner surface of the through hole on the second guide rail 221, and the top of the positioning pin 84 is flush with the upper surface of the second guide rail 221; the connecting rod 83 can rotate around the bracket. When the shaft rotates, the top of the guide post 81, which is vertically set at the first end of the connecting rod 83, passes through the second guide rail 221 and the driven block 86 protrudes from the surface of the second guide rail 221. A tension spring is sleeved on the guide post 81 on the lower surface of the second guide rail 221. The two ends of the tension spring are connected to the lower surface of the second guide rail 221 and the upper surface of the connecting rod 83, respectively. In the initial state, the tension spring causes the connecting rod 83 to tilt from the first end to the second end, so that the driven block 86 extends out of the upper surface of the second guide rail 221 and the top of the positioning pin 84 is flush with the upper surface of the second guide rail 221.

[0052] When the forklift moves the battery pack 10 to the target layer guide rail mounting assembly 22, it feeds the battery pack 10 into the second guide rail 221. Once the limiting block 63 abuts against the second guide rail 221, it indicates that the battery pack 10 has reached the correct depth. At this point, the positioning hole of the battery pack is basically aligned with the mounting hole of the second guide rail 221. It should be noted that the contact surface between the limiting block 63 and the battery pack and the second guide rail 221 can be flush, stepped, or beveled. The specific structure can be determined based on the distance between the battery pack 10 and the second guide rail 221.

[0053] The battery pack 10 is then slowly lowered, with its bottom first contacting the driven block 86 on the second guide rail 221. As the battery pack 10 continues to move downward, the bottom of the battery pack applies a downward thrust to the driven block 86. Under this thrust, the driven block 86 drives the guide post 81 to move downward. Furthermore, since the guide post 81 engages with the sliding hole in the second guide rail 221, the vertical movement of the guide post 81 is ensured. The downward movement of the guide post 81 pushes the first end of the connecting rod 83 to swing downward. Since the connecting rod 83 and the bracket 82 form a lever structure, the second end of the connecting rod 83 is lifted upward, causing the positioning pin 84 to slide upward synchronously, so that the frustum-shaped structure at the top of the positioning pin 84 fully extends out of the upper surface of the second guide rail 221. At this time, the battery pack 10 continues to be lowered until its bottom surface is close to the surface of the second guide rail 221. The positioning holes 102 (corresponding to the positions of the positioning pins 84) on both sides of the bottom of the battery pack 10 move down accordingly. The inclined surface of the frustum-shaped structure at the top of the positioning pin 84 contacts the edge of the positioning hole 102. The frustum-shaped structure can guide the positioning hole 102 to be accurately fitted into the positioning pin 84, avoiding misalignment of the positioning hole 102 due to slight deviation of the battery pack 10. When the battery pack 10 is completely lowered onto the second guide rail 221, the top of the positioning pin 84 is fully inserted into the positioning hole 102. At the same time, the inner wall of the positioning hole 102 squeezes the slot of the frustum-shaped structure, causing the elastic element 85 in the slot to be compressed and deformed. The reaction force of the elastic element 85 is transmitted to the positioning pin 84 through the slot, tightly locking the positioning pin 84 in the positioning hole 102, completing the initial positioning of the battery pack 10.

[0054] Finally, workers, wearing low-temperature dust-free protective gear, used bolts and other fasteners to secure the battery pack 10 through the other positioning and mounting holes. After removing the positioning linkage component 80, they then fixed the hole, completing the final fixation of the battery pack. Furthermore, the design of the multi-layer guide rail mounting group 22 allows for the sequential installation of the battery pack 10 "from bottom to top": after the battery pack 10 in the upper guide rail mounting group 22 is positioned and fixed, the forklift moves to the corresponding position in the lower layer, repeating the above lowering and positioning process until all the guide rail mounting groups 22 in the entire column are equipped with battery packs 10, forming a complete energy storage battery cluster.

[0055] Compared with existing technologies, the above method has the following advantages. First, this method is not only convenient to install, saving time and effort, but also has very high safety. Since the positioning holes of the battery pack and the mounting holes of the second guide rail 221 are relatively small, and the cluster frame is tall and heavy, it is very inconvenient and dangerous for installers to observe the alignment of the holes next to the cluster frame during installation. However, this method can basically achieve positioning without close observation, and the positioning pin 84 will make a clear "click" sound after positioning, which can be easily identified by the staff. Second, the positioning linkage component 80, through the lever linkage structure, automatically triggers the positioning pin 84 to extend when the battery pack 10 is lowered. With the guiding effect of the frustum-shaped structure at the top of the positioning pin 84, it can ensure that the positioning hole 102 of the battery pack 10 is accurately aligned with the positioning pin 84, avoiding the error of manual positioning. At the same time, the pre-tightening and clamping effect of the elastic element 85 can prevent the battery pack 10 from being slightly shaken and shifted before fixing, ensuring the uniform installation position of the multi-layer battery pack 10 and improving the overall consistency of the energy storage battery cluster. Third, the entire positioning process does not require manual adjustment of the positioning pin 84; the positioning is triggered solely by the gravity of the battery pack 10 itself. This significantly reduces the operational steps for workers in low-temperature environments—especially when wearing heavy protective gear. It avoids the inefficiency caused by complex manual operations, reducing the positioning time of a single battery pack 10 by more than 50% and significantly improving overall installation efficiency. Fourth, battery packs 10 of different specifications only need to be matched with the corresponding positioning holes 102 to achieve positioning through the same set of positioning linkage components 80, without the need to replace components, thus enhancing the compatibility of the cluster frame 20. The components of the positioning linkage component 80 are detachably connected (such as the bracket 82 screwed in and the elastic element 85 snapped in). If a component is damaged, it can be replaced individually without disassembling the entire guide rail mounting assembly 22 or the cluster frame 20, reducing maintenance costs and downtime. Fourth: The uprights 21 and the second guide rail 221 of the cluster frame 20 are made of low-temperature resistant alloy material, which can maintain rigidity in an environment of -20℃ to 0℃, avoiding load failure caused by low-temperature embrittlement; the elastic element 85 of the positioning linkage component 80 is made of low-temperature fatigue-resistant spring, which can ensure that it can stably achieve telescopic reset at low temperature, and each sliding component (guide post 81, positioning pin 84 and guide rail) is lubricated with low-temperature grease to prevent low-temperature jamming and ensure that the component works stably in a low-temperature environment.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for installing large-scale cryogenic batteries, used in transport and installation scenarios that meet the requirements of cryogenic and dust-free operations, characterized in that, include: Step 1: Inspection; The assembled battery packs (10) are placed in an orderly manner on the bracket according to the preset spacing and uniform orientation. Before transportation, confirm that the surface of the battery packs (10) is free of dust and the structure is intact. Step 2: Lifting; Move the forklift to the front of the bracket, adjust the spacing between the forklift forks (61) so that the spacing between the forklift forks (61) matches the distance between the hanging ears (101) on both sides of the battery pack (10), and after the forklift forks (61) are inserted into the hanging ears (101), lift the battery pack (10) horizontally. Step 3: Move; Operate the forklift to move the battery pack (10) to the cluster rack (20), align the battery pack (10) with the mounting position and lower it until the bottom is close to the mounting surface of the cluster rack (20); Step 4: Exit; Keep the battery pack (10) in a stable position, operate the forklift so that the fork (61) slowly and horizontally exits the lug (101). Step 5: Fixing; The operator wears low-temperature dust-free protective equipment and uses tools to fix the battery pack (10). When fixing, maintain the ambient temperature at -20℃~0℃ and the dust concentration at ≤0.3mg / m³. Step 6: Repeat steps 2-5 to install all battery packs (10) according to the preset number of battery packs (10) and the order of their arrangement in the upper and lower layers of the cluster frame (20), thus forming an energy storage battery cluster.

2. A cryogenic battery transfer and installation fixture, used to implement the large cryogenic battery installation method as described in claim 1, characterized in that, include: Connecting bracket (30) is provided at the front end of the forklift; Mounting plate (40) is vertically mounted on the connecting frame (30); A lifting assembly (50) is mounted on the connecting frame (30) and connected to the mounting plate (40) for driving the mounting plate (40) to rise and fall; The fork-shaped assembly (60) is connected at one end to the mounting plate (40) and at the other end to be inserted into the lugs (101) on both sides of the battery pack (10) to lift the battery pack (10). A levelness detection component (70) is disposed on the fork-lifting component (60) for detecting the levelness of the fork-lifting component (60); An adjustment component (90) is disposed between the connecting frame (30) and the lifting component (50) for adjusting its own tilt angle to control the levelness of the levelness detection component (70).

3. The cryogenic battery transfer and installation fixture according to claim 2, characterized in that: The fork-lifting assembly (60) includes two forks (61) arranged horizontally at intervals. Each fork (61) includes a vertically arranged fixing part (611) and a horizontally arranged supporting part (612). Each supporting part (612) has an arc-shaped structure at one end away from the lifting assembly (50). A plurality of first grooves (62) are spaced apart on any of the forks (61), and the plurality of first grooves (62) are distributed along the length direction of the forks (61) to reduce the friction between the forks (61) and the lugs (101) of the battery pack (10); Limiting blocks (63) are respectively provided at the bottom of the two forks (61) for contacting the battery pack (10).

4. The cryogenic battery transfer and installation fixture according to claim 3, characterized in that: The lifting assembly (50) includes: A substrate (51) is disposed on the upper surface of the connecting frame (30), and one end of the substrate (51) is hinged to the connecting frame (30); The gantry (52) is a frame structure and is vertically mounted on the base plate (51); The lifting frame (53) is slidably disposed within the gantry (52), and the mounting plate (40) is slidably disposed on the lifting frame (53); A crossbar (54) is horizontally positioned at the top of the lifting frame (53), and the crossbar (54) moves up and down along the height direction of the lifting frame (53); Two sprockets (55) are rotatably mounted at both ends of the crossbar (54); Two chains (56) are provided one-to-one with two sprockets (55), and the first end of each chain (56) is connected to the mounting plate (40), and the second end is connected to the lifting frame (53); The drive unit (57) is vertically disposed at the bottom of the lifting frame (53), and the output end of the drive unit (57) is connected to the crossbar (54).

5. The cryogenic battery transfer and installation fixture according to claim 4, characterized in that: The adjustment component (90) includes: Two hydraulic cylinders (91) are respectively arranged on both sides of the middle part of the lifting frame (53). The cylinder body of each hydraulic cylinder (91) is hinged to the connecting frame (30), and the piston rod of the hydraulic cylinder (91) is hinged to the corresponding side of the lifting frame (53). Two side plates (92) are respectively disposed on both sides of the substrate (51). Each side plate (92) is provided with an arc groove (93). A round rod is provided at the second end of the substrate (51). After the free end of the round rod extends into the arc groove (93), it slides and adapts to the arc groove (93). A pointer is provided on the outer side of the free end of the round rod. A scale (94) is provided on the edge of the arc groove (93) corresponding to the pointer.

6. The cryogenic battery transfer and installation fixture according to claim 5, characterized in that: The cryogenic battery transfer and installation fixture also includes a guide member (100), which guides the crossbar (54) to move along the height direction of the lifting frame (53). The guide member (100) includes: Two first guide rails (1001) are respectively vertically set on the top of the lifting frame (53); Two first sliders (1002) are respectively disposed at both ends of the crossbar (54) and are slidably connected to and adapted to the corresponding first guide rails (1001).

7. The cryogenic battery transfer and installation fixture according to claim 2, characterized in that: The mounting plate (40) has a square structure, and a mounting part (41) is arranged horizontally in the middle of the mounting plate (40). The mounting part (41) has a second groove (42) along its length direction. The top of the fixing part (611) of the fork assembly (60) is detachably mounted on the mounting part (41).

8. The cryogenic battery transfer and installation fixture according to claim 3, characterized in that: The levelness detection component (70) includes a base (71) and an infrared levelness detector (72). The base (71) is disposed on the lower surface of one of the forks (61), and the infrared levelness detector (72) is disposed on the base (71), with the detection surface of the infrared levelness detector (72) facing the bottom surface of the battery pack (10).

9. The cryogenic battery transfer and installation fixture according to claim 3, characterized in that: The cryogenic battery transfer and installation fixture also includes a positioning linkage component (80), which is detachably installed on the cluster frame (20) and is provided with a positioning pin (84) to cooperate with the positioning hole on the battery pack (10) to assist in positioning and fixing the battery pack (10).

10. The cryogenic battery transfer and installation fixture according to claim 9, characterized in that: The cluster frame (20) includes multiple columns (21) and multiple guide rail mounting groups (22). The multiple columns (21) are arranged sequentially to form multiple column rows, and each column row is parallel to the others. Each guide rail mounting group (22) includes two second guide rails (221). The two second guide rails (221) of each guide rail mounting group (22) are respectively connected to the columns (21) of two adjacent column rows. The multiple guide rail mounting groups (22) are arranged sequentially along the height direction of the column rows. The guide rail mounting groups (22) are used to place the battery pack (10). Each of the second guide rails (221) is provided with at least one of the positioning linkage components (80); the positioning linkage component (80) includes a guide post (81), a bracket (82), a connecting rod (83), a positioning pin (84), an elastic element (85), and a driven block (86). The bracket (82) is detachably connected to the second guide rail (221). A connecting rod (83) is rotatably connected to the middle of the bracket (82). The first end of the connecting rod (83) is hinged with the guide post (81). The top end of the guide post (81) passes through the second guide rail (221) and slides with the second guide rail (221). A driven block (86) is provided, and the driven block (86) is an elastic element. A tension spring is sleeved on the guide post (81). The two ends of the tension spring are respectively connected to the corresponding sides of the guide rail and the connecting rod (83). The second end of the connecting rod (83) is hinged with a positioning pin (84), which passes through the second guide rail (221) and slides with the second guide rail (221). The top of the positioning pin (84) is a frustum-shaped structure, and a slot is vertically provided in the middle of the frustum-shaped structure. An elastic element (85) is provided in the slot, and the two ends of the elastic element (85) are respectively connected to the two sides of the slot.

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