Battery pack shell locking device

Abstract

The utility model relates to the technical field of battery pack assembling, in particular to a battery pack shell locking device which comprises a first assembling mechanism, a second assembling mechanism, a pressure detection mechanism and a controller. The first assembling mechanism is used for positioning a shell side plate to be locked; the second assembling mechanism and the first assembling mechanism are oppositely arranged, the second assembling mechanism is used for positioning an open type battery pack to be locked, and the second assembling mechanism is configured to be capable of driving the open type battery pack to move towards the shell side plate in the first direction for pre-assembling; the pressure detection mechanism is used for detecting the resistance value of the second assembling mechanism when the second assembling mechanism moves along the first direction of the first assembling mechanism; the controller is electrically connected with the pressure detection mechanism and the second assembling mechanism. According to the battery pack shell locking device provided by the utility model, the problem that a battery cell is damaged when an open type battery pack and a shell side plate are locked can be avoided or reduced, so that the assembling safety of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack assembly, and in particular to a battery pack shell locking device. Background Art

[0002] During the locking process of the battery pack shell, usually the side panels of the shell are manually held, and then the open battery pack and the side panels of the shell are locked together. However, during the locking process of manually holding the side panels of the shell, since the force cannot be evenly applied by manpower, it is easy to cause uneven pressure on the left and right sides of the side panels of the shell and the open battery pack, which can easily crush the battery cells in the open battery pack during locking;

[0003] At the same time, during the locking process, debris may sometimes enter between the outer shell side panels and the battery cells. For example, the debris may be over-installed battery cells or metal filings, plastic fragments or residual manufacturing materials. During the assembly of the battery pack shell, any small negligence may cause debris to enter between the outer shell side panels and the battery cells. If it is not discovered in time, it may cause the battery cells to be easily crushed when locking the open battery pack and the outer shell side panels, thereby causing safety hazards or failures in the manufactured battery pack. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a battery pack shell locking device, which can avoid or reduce the problem of damaging the battery cells when the open battery pack and the shell side panels are locked, thereby improving the safety of the battery pack assembly.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a battery pack shell locking device, including a first assembly mechanism, a second assembly mechanism, a pressure detection mechanism and a controller; the first assembly mechanism is used to position the shell side panel to be locked; the second assembly mechanism is arranged opposite to the first assembly mechanism, and is used to position the open battery pack to be locked, and the second assembly mechanism is configured to be able to drive the open battery pack to move along the first direction toward the shell side panel for pre-assembly; the pressure detection mechanism is used to detect the resistance value of the second assembly mechanism when the first assembly mechanism moves along the first direction; the controller is electrically connected to the pressure detection mechanism and the second assembly mechanism, respectively.

[0006] In an optional embodiment of the utility model, the second assembly mechanism includes a positioning platform, a lifting component and a pushing component; the positioning platform is used to place and position the open battery pack to be locked; the lifting component is connected to the positioning platform, and is used to lift the open battery pack to a predetermined position; the pushing component is arranged in a first direction, and the pushing component is configured to be able to push the open battery pack at a predetermined position toward the side panel of the outer shell along the first direction.

[0007] In an optional embodiment of the present invention, the battery pack shell locking device also includes a detection mechanism for detecting the position of the open battery pack, and the detection mechanism is electrically connected to the controller.

[0008] In an optional embodiment of the present invention, the battery pack shell locking device further includes a locking mechanism, and the locking mechanism includes a guiding structure for guiding the fastener when connecting the shell side plate and the open battery pack.

[0009] In an optional embodiment of the present invention, a fixing component is provided on the first assembly mechanism, and the fixing component is used to fix the side panel of the shell.

[0010] In an optional embodiment of the present invention, the fixing component is a vacuum adsorption component or an electromagnetic adsorption component.

[0011] In an optional embodiment of the present invention, the battery pack shell locking device also includes an alarm electrically connected to the controller.

[0012] In an optional embodiment of the present invention, the battery pack shell locking device also includes an assembly line, and the first assembly mechanism and the second assembly mechanism are arranged beside the assembly line.

[0013] In an optional embodiment of the present utility model, a positioning guide portion for positioning and guiding the side panel of the housing is provided on the first assembly mechanism.

[0014] In an optional embodiment of the present invention, the pressure detection mechanism is a weighing sensor or a pressure sensor.

[0015] In summary, the utility model reduces the amount of manual work by using automatic tooling instead of manual support for the side panels of the shell, thereby avoiding damage to the battery cells due to uneven pressure on the left and right sides during manual locking; and detects the pressing pressure of the side panels of the shell before they are pressed and locked, and adds a pressure detection mechanism to detect the pressure in time during the process of pressing to a fixed position, thereby avoiding the situation where foreign matter is present between the side panels of the shell and the battery cells and cannot be discovered in time, avoiding damage to the battery cells, and improving the safety of battery packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1This is a structural schematic diagram of a battery pack shell locking device according to an embodiment of the utility model, in which a shell side plate is installed;

[0018] Figure 2 A schematic diagram of the structure of a battery pack shell locking device pre-assembled with an open battery pack and a shell side plate according to an embodiment of the utility model;

[0019] Figure 3 This is a partial structural schematic diagram of a battery pack shell locking device according to an embodiment of the utility model;

[0020] Figure 4 This is a state diagram of the battery pack shell locking device according to one embodiment of the utility model when the mechanisms are separated;

[0021] Explanation of component numbers: outer shell side panel 10, open battery pack 20, first assembly mechanism 1, second assembly mechanism 2, positioning platform 21, lifting component 22, pushing component 23, driving mechanism 231, pushing plate 232, pressure detection mechanism 3, guide structure 4, fixing component 5, adsorption hole 51, positioning guide part 52. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0023] See also Figures 1 to 4 .in, Figure 1 and Figure 4The push-in assembly in the figure is supported by a frame, which is not shown in the figure. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be produced by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0024] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0025] See also Figure 1 to Figure 2 The utility model provides a battery pack shell locking device, comprising a first assembly mechanism 1, a second assembly mechanism 2, a pressure detection mechanism 3 and a controller; the first assembly mechanism 1 is used to position the shell side plate 10 to be locked; the second assembly mechanism 2 is arranged opposite to the first assembly mechanism 1, and is used to position the open battery pack 20 to be locked, and the second assembly mechanism 2 is configured to be able to drive the open battery pack 20 to move along the first direction toward the shell side plate 10 for pre-assembly; the pressure detection mechanism 3 is used to detect the resistance value of the second assembly mechanism 2 when the first assembly mechanism 1 moves along the first direction; the controller is electrically connected to the pressure detection mechanism 3 and the second assembly mechanism 2 respectively.

[0026] It should be noted that a battery pack is an integrated unit that integrates multiple battery modules and is used to store and provide electrical energy. A battery pack generally includes a battery cell, a module, a battery management system (BMS), a protective device, and a shell structure. The battery cell is the basic energy storage unit of the battery pack. The module is used to connect multiple batteries together to form a module to increase the total energy output of the battery pack. The battery management system (BMS) is the brain of the battery pack, responsible for monitoring and managing the battery charging and discharging process to ensure the safety and stable performance of the battery. BMS can prevent the battery from overcharging, overheating, etc., and extend the service life of the battery. The protective device includes a temperature sensor, a voltage sensor, etc., which is used to monitor the battery status in real time to ensure safe use. The battery pack shell is generally used to protect the internal battery cells and modules, while providing the necessary mechanical strength and thermal management functions. The open battery pack 20 includes at least a battery cell and a battery pack shell. If the shell side plate 10 of the battery pack is removed, the battery pack will be split into an open battery pack 20 and a shell side plate 10.

[0027] During the battery pack manufacturing process, after the battery cells are loaded into the battery pack shell to form an open battery pack 20, the open battery pack 20 needs to be locked to the shell side panel 10. Battery pack shell locking refers to the process of firmly fixing the shell part of the battery pack together through specific fasteners or connection methods. Battery pack shell locking is a key link in the battery pack manufacturing process, which ensures the structural integrity and safety of the battery pack.

[0028] In this case, the first assembly mechanism 1 is used to locate and install the shell side panel 10 to be locked. For example, the first assembly mechanism 1 is provided with a positioning structure and a mechanism for fixing the shell side panel 10, and the assembly surface of the shell side panel 10 on the first assembly mechanism 1 is facing the second assembly mechanism 2; the shell side panel 10 on the first assembly mechanism 1 can be installed manually or the shell side panel 10 can be automatically assembled to the first assembly mechanism 1 by an automated device, for example, the shell side panel 10 is installed and fixed to the first assembly mechanism 1 by a manipulator; the first assembly mechanism 1 can be fixed to a predetermined station or can be a mechanism that can move toward the second assembly mechanism 2 in a first direction, and the specific drive can be either automatic drive or manual drive. When there is actual demand, the first assembly mechanism 1 can also be set to be able to move to the second assembly mechanism 2 to pre-assemble the open battery pack 20 and the shell side panel 10. Or when there is actual demand, the shell side panel 10 can also be placed on the second assembly mechanism 2, and the open battery pack 20 can be placed on the first assembly mechanism 1 to pre-assemble the open battery pack 20 and the shell side panel 10. The second assembly mechanism 2 is used to position the open battery pack 20 to be locked. For example, a positioning mechanism can also be set on the second assembly mechanism 2 to position the open battery pack 20; the second assembly mechanism 2 can be a mechanism that moves as a whole or includes a fixed assembly structure and a sliding assembly structure that slides relative to the fixed assembly structure. The second assembly mechanism 2 can be pushed toward the first assembly mechanism 1 by manpower or driven by mechanical automation. The pressure detection mechanism 3 can be a pressure sensor or a gravity sensor or other pressure detection mechanism 3 that meets the use requirements. The pressure detection mechanism 3 is generally arranged between the driving mechanism 231 that drives the second assembly mechanism 2 and the second assembly mechanism 2, and is arranged along the first direction; the first assembly mechanism 1 and the second assembly mechanism 2 are generally arranged at the battery pack assembly production line. The controller can be a PLC (programmable logic controller) or a PID controller or a motion control card or an industrial Ethernet controller or a computer or other controller. Further, the controller can be more specifically a Siemens PLC. The Siemens PLC model is 1200, and the CPU model of the PLC is 1215C. The specific selection can be made according to actual needs.

[0029] When the battery pack shell locking device of the present case is used, the shell side plate 10 is first installed on the first assembly mechanism 1, and the open battery pack 20 is placed at a predetermined position on the second assembly mechanism 2. Then, the second assembly mechanism 2 can be pushed to move by the driving mechanism 231 of the second assembly mechanism 2. The pressure detection mechanism 3 is arranged between the driving mechanism 231 and the second assembly mechanism 2. The second assembly mechanism 2 moves along the first direction. If a slide rail is arranged along the first direction, the driving mechanism 231 will press against the pressure detection mechanism 3 when pushing the second assembly mechanism 2. When the pressure detection mechanism 3 detects that the resistance value of the second assembly mechanism 2 moving along the first direction toward the first assembly mechanism 1 is greater than a predetermined threshold, the controller will control the second assembly mechanism 2 to stop moving toward the first assembly mechanism 1 or to move back away from the first assembly mechanism 1. When the pressure detection mechanism 3 detects that the second assembly mechanism 2 moves along the first direction toward the first assembly mechanism 1, the controller will control the second assembly mechanism 2 to stop moving toward the first assembly mechanism 1 or to move back away from the first assembly mechanism 1. When the resistance value of the mechanism 2 when moving along the first direction toward the first assembly mechanism 1 is greater than the predetermined threshold value, it indicates that there may be debris entering between the outer shell side panel 10 and the open battery pack 20 and increasing the pre-assembly resistance or there may be too many batteries. The assembly hidden dangers are then manually checked and resolved, or the faults can be detected and eliminated through automated equipment. After the fault is eliminated, the second assembly mechanism 2 continues to move toward the first assembly mechanism 1 through the control of the controller. When the pressure detection mechanism 3 detects that the resistance value of the second assembly mechanism 2 when moving along the first direction toward the first assembly mechanism 1 is less than the preset threshold value, the adjacent open battery pack 20 and the outer shell side panel 10 will also be pre-assembled. Subsequently, the open battery pack 20 and the outer shell side panel 10 can be manually locked or the open battery pack 20 and the outer shell side panel 10 can be locked by a robot to complete the locking work.

[0030] See also Figures 2 to 4 As an optional embodiment of the utility model, the second assembly mechanism 2 includes a positioning platform 21, a lifting component 22 and a pushing component 23; the positioning platform 21 is used to place and position the open battery pack 20 to be locked; the lifting component 22 is connected to the positioning platform 21, and is used to lift the open battery pack 20 to a predetermined position; the pushing component 23 is arranged in a first direction, and the pushing component 23 is configured to be able to push the open battery pack 20 at a predetermined position toward the shell side panel 10 along the first direction.

[0031] It should be noted that the positioning platform 21 is used to place the open battery pack 20. The positioning platform 21 may be provided with a positioning structure, such as a placement groove or a placement channel, to position the open battery pack 20 to be locked. The lifting component 22 is connected to the positioning platform 21. For example, the positioning platform 21 is arranged on the top of the lifting component 22 or along the first direction and close to the side of the first assembly mechanism 1; the predetermined position is located between the first assembly mechanism 1 and the second assembly mechanism 2 and is located in the first direction. If the first direction is a horizontal direction, the height of the predetermined position is flush with the shell side plate 10 on the first assembly mechanism 1; when the lifting component 22 lifts the open battery pack 20 to the predetermined position, the pushing component 23 pushes the open battery pack 20 at the predetermined position along the preset track on the positioning platform 21 toward the shell side plate 10, thereby completing the pre-assembly of the open battery pack 20 and the shell side plate 10. The lifting component 22 may be, for example, a cylinder or a hydraulic cylinder or other driving components that meet the use requirements. Generally, since the open battery pack 20 is heavy, the lifting component 22 is preferably a hydraulic driving component. The pushing component 23 can be, for example, a cylinder or a hydraulic cylinder or other driving components that meet the use requirements. Since the pushing component 23 is used to push the open battery pack 20 to move, the required force is relatively small, and therefore, the lifting component 22 is preferably a pneumatic driving component.

[0032] See also Figure 1 and Figure 4 As an optional embodiment of the present utility model, the pushing assembly 23 includes a driving mechanism 231 and a pushing plate 232 ; the pressure detecting mechanism 3 is disposed between the driving mechanism 231 and the pushing plate 232 .

[0033] As an optional embodiment of the present invention, the battery pack shell locking device further includes a detection mechanism for detecting the position of the open battery pack 20, and the detection mechanism is electrically connected to the controller.

[0034] It should be noted that the detection mechanism includes but is not limited to ultrasonic detection sensors, millimeter wave radar detection sensors, infrared detection sensors, laser detection sensors or position sensors; before and during the movement of the open battery pack 20 on the second assembly mechanism 2 to the outer shell side panel 10 on the first assembly mechanism 1, the detection mechanism will detect whether the position of the open battery pack 20 is accurate, and may also detect whether the position of the outer shell side panel 10 is accurate. When the position of the open battery pack 20 or the outer shell side panel 10 is not the predetermined position, the controller will control the alarm electrically connected to the controller to sound an alarm or control the second assembly mechanism 2 to stop moving toward the first assembly mechanism 1, thereby avoiding the problem of battery cell damage caused by incorrect pre-assembly.

[0035] See also Figure 2As an optional embodiment of the present invention, the battery pack shell locking device also includes a locking mechanism, and the locking mechanism includes a guide structure 4 for guiding when the fastener connects the shell side panel 10 and the open battery pack 20.

[0036] It should be noted that, through the setting of the guide structure 4, the fasteners can be smoothly and accurately locked to the open battery pack 20 and the outer shell side panel 10, such as bolts or screws or other locking parts that meet the locking requirements; the guide structure 4 can be, for example, a tubular channel, which can be used to guide the fasteners, and can also prevent the fasteners from falling into the first assembly mechanism 1 or the second assembly mechanism 2 when locking the open battery pack 20 and the outer shell side panel 10, making it difficult to remove, thereby improving the efficiency and convenience of locking and the locking safety; at the same time, the guide structure 4 can be set on the first assembly mechanism 1 or the second assembly mechanism 2, or a frame can be set separately to install the guide structure 4.

[0037] See also Figure 1 and Figure 3 As an optional embodiment of the present utility model, a fixing component 5 is provided on the first assembly mechanism 1 , and the fixing component 5 is used to fix the housing side panel 10 .

[0038] As an optional embodiment of the present invention, the fixing component 5 is a vacuum adsorption component or an electromagnetic adsorption component.

[0039] It should be noted that the fixing assembly 5 may also be other devices that meet the use requirements; the first assembly mechanism 1 is generally provided with an assembly panel for placing and assembling the shell side panel 10. When a worker or a manipulator installs the shell side panel 10 on the first assembly mechanism 1, the shell side panel 10 is fixed by the fixing assembly 5, such as fixing the shell side panel 10 by a vacuum adsorption member.

[0040] The vacuum adsorption member includes adsorption holes 51 arranged on the assembly plate surface for negative pressure adsorption of the housing side plate 10 .

[0041] As an optional embodiment of the present invention, the battery pack shell locking device also includes an alarm electrically connected to the controller.

[0042] As an optional embodiment of the present invention, the battery pack shell locking device also includes an assembly line, and the first assembly mechanism 1 and the second assembly mechanism 2 are arranged beside the assembly line.

[0043] It should be noted that, since the open battery pack 20 is relatively heavy, it is generally transported toward the second assembly mechanism 2 through an assembly line, or directly transported to the positioning platform 21, or transported to the side of the positioning platform 21 and then manually moved to the positioning platform 21 to reduce the amount of manual work.

[0044] See also Figure 1 and Figure 3 As an optional embodiment of the present utility model, the first assembly mechanism 1 is provided with a positioning guide portion 52 for positioning and guiding the housing side plate 10 .

[0045] It should be noted that the positioning guide portion 52 may be a groove or a protrusion or other structures that satisfy the positioning and guiding function, and the positioning guide portion 52 is arranged along the first direction.

[0046] As an optional embodiment of the present invention, the pressure detection mechanism 3 is a weighing sensor or a pressure sensor.

[0047] As an optional embodiment of the utility model, the locking mechanism can also include a screw feeding system and a tightening gun that can be purchased on the market. The screws are fed into the guide structure 4 through the screw feeding system. The screw feeding system generally includes an automatic feeding module, a screening feeding module, a shortage alarm module, etc. The automatic feeding module is used to automatically replenish new screws after the screws in the system are used to ensure the continuous operation of the production line; the screening feeding module is used for the feeding system to screen out qualified screws and convey them to the guide structure 4, while automatically screening out unqualified screws; the shortage alarm module is used when the screws in the hopper can no longer be supplied, the system will send out an audible and visual alarm through the alarm, prompting the operator to replenish the screws in time. The tightening gun can be used to manually tighten the screws that lock the open battery pack 20 and the side panel 10 of the shell through a tightening gun, or it can be automatically tightened by a tightening gun connected to a manipulator, thereby improving production efficiency, reducing manual intervention, and ensuring the accuracy and continuity of screw supply and tightening.

[0048] In this case, automatic tooling is used instead of manual support for the outer shell side panel 10 to reduce the amount of manual work and avoid damaging the battery cell due to uneven pressure on the left and right sides during manual locking. The pressing pressure of the outer shell side panel 10 is detected before the outer shell side panel 10 is pressed and locked, and a pressure detection mechanism 3 is added during the process of pressing to a fixed position to detect the pressure in time, so as to avoid the situation where foreign matter between the outer shell side panel 10 and the battery cell cannot be discovered in time, thereby avoiding damage to the battery cell and improving the safety of battery packaging.

[0049] During operation, before the open battery pack 20 product enters the workstation, the outer shell side panel 10 is pre-installed on the first assembly mechanism 1. After the open battery pack 20 enters the workstation, the lifting component 22 lifts the open battery pack 20 out of the track of the assembly line and to a predetermined position through the positioning platform 21. Next, the pushing component 23 pushes the open battery pack 20 to the pre-installed outer shell side panel 10. During the operation of the pushing component 23 or when the open battery pack 20 is pressed against the outer shell side panel 10, the pressure detection mechanism 3 works to detect the resistance of the pushing component 23 pushing the open battery pack 20 against the outer shell side panel 10, and feeds back the real-time pressure value between the outer shell side panel 10 and the battery cell. When the resistance value detected by the pressure detection mechanism 3 is greater than the preset threshold value, the controller controls the alarm to sound. At the same time, the controller controls The second assembly mechanism 2 is forced to stop or retreat to return to its original work, and then the worker checks whether there is any foreign matter between the outer shell side panel 10 and the battery cell. When all faults are checked, the second assembly mechanism 2 drives the open battery pack 20 to move toward the outer shell side panel 10 and completes the pre-assembly through the control of the controller. Subsequently, a manual or robotic arm uses screws or bolts to lock the open battery pack 20 and the outer shell side panel 10 through the cooperation of the guide structure 4. After the open battery pack 20 and the outer shell side panel 10 are locked to form an integral battery pack, the first assembly mechanism 1 releases the outer shell side panel 10, and the battery pack is returned to the conveyor line and transported away under the drive of the second assembly mechanism 2, and the second assembly mechanism 2 also returns to the original workstation to continue waiting for the next open battery pack 20 to be locked, thereby completing the entire workflow of locking the battery pack shell.

[0050] In summary, the utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A battery pack casing locking device, characterized in that: include: A first assembly mechanism, used for positioning the housing side panel to be locked; A second assembly mechanism, arranged opposite to the first assembly mechanism and used to position the open battery pack to be locked, and the second assembly mechanism is configured to drive the open battery pack to move along the first direction toward the side plate of the housing for pre-assembly; A pressure detection mechanism, used for detecting a resistance value when the second assembly mechanism moves the first assembly mechanism along a first direction; A controller is electrically connected to the pressure detection mechanism and the second assembly mechanism respectively.

2. The battery pack casing locking device according to claim 1, characterized in that: The second assembly mechanism comprises: A positioning platform, used for placing and positioning the open battery pack to be locked; A lifting assembly connected to the positioning platform and used to lift the open battery pack to a predetermined position; The pushing assembly is arranged in a first direction, and is configured to push the open battery pack at a predetermined position toward the housing side plate along the first direction.

3. The battery pack casing locking device according to claim 1, characterized in that: It also includes a detection mechanism for detecting the position of the open battery pack, and the detection mechanism is electrically connected to the controller.

4. The battery pack casing locking device according to claim 1, characterized in that: It also includes a locking mechanism, which includes a guiding structure for guiding the fastener when connecting the shell side plate and the open battery pack.

5. The battery pack casing locking device according to claim 1, characterized in that: The first assembly mechanism is provided with a fixing component, and the fixing component is used to fix the housing side plate.

6. The battery pack casing locking device according to claim 5, characterized in that: The fixing component is a vacuum adsorption component or an electromagnetic adsorption component.

7. The battery pack casing locking device according to claim 1, characterized in that: Also included is an alarm electrically connected to the controller.

8. The battery pack casing locking device according to claim 1, characterized in that: It also includes an assembly line, and the first assembly mechanism and the second assembly mechanism are arranged beside the assembly line.

9. The battery pack casing locking device according to claim 1, characterized in that: The first assembly mechanism is provided with a positioning guide portion for positioning and guiding the housing side plate.

10. The battery pack casing locking device according to claim 1, characterized in that: The pressure detection mechanism is a weighing sensor or a pressure sensor.

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