Automobile battery pack module and battery replacement equipment

Abstract

The invention relates to the technical field of electric automobile battery replacement, in particular to an automobile battery pack module and battery replacement equipment, which comprises a battery compartment, a battery pack body, a base, a shear fork arm, a supporting seat, a first motor, a first screw rod and a control system, sliding chutes are formed in the base and the supporting seat, and a plurality of positioning columns are mounted on the upper end surface of the supporting seat; a plurality of positioning grooves are formed in the lower end face of the battery pack body, a plurality of locking blocks are installed on the outer side wall of the battery pack body, first locking grooves are formed in the locking blocks, and a plurality of locking valves are installed in the battery bin; the scissor fork arm is matched with a simple transmission structure of the first motor and the first screw rod, so that the linkage number of parts and matching nodes are reduced; the problems of excessive complexity of a mechanical structure, aggravated abrasion and the like are avoided, the operation stability of the automobile battery pack module and the battery replacement equipment is ensured, the risk of interruption of the battery replacement process due to faults is reduced, the maintenance difficulty and cost are reduced, the battery replacement efficiency is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle battery swapping technology, specifically to an automotive battery pack module and battery swapping equipment. Background Technology

[0002] An automotive battery module is a unified system formed by combining multiple batteries to provide power and store energy for a vehicle. It typically consists of battery cells, a battery management system, and connecting circuits. An automotive battery swapping device is used to replace batteries in an electric vehicle. It mainly includes a positioning system, a battery swapping system, an operation and maintenance system, a safety system, and a logistics system. The battery swapping system is the core component, its main function being to remove a depleted battery from the electric vehicle, transport it to the battery compartment for charging, and simultaneously retrieve a fully charged battery from the battery compartment and install it onto the electric vehicle, completing the battery swapping process.

[0003] Several automatic battery swapping solutions are provided in the prior art. For example, the invention patent with patent application number CN202111392178.1 discloses a new energy vehicle battery swapping device. This solution involves driving the car onto the support body, and then controlling the output end of the No. 1 motor to rotate. The No. 1 motor drives the support plate upward, and the upward movement of the support plate moves the placement shell to the bottom of the new energy vehicle battery, allowing the battery to enter the placement shell. At the same time, the first electric telescopic rod drives the clamping plate to move, thereby positioning the battery. Then, the No. 1 motor drives the support plate to the middle of the mounting slot. Then, the rotating No. 1 motor drives the support plate to rotate, causing the placement shell holding the old battery to rotate to the bottom of the support plate, and at the same time, causing the new battery to rotate to the top of the support plate. Similarly, the support plate moves upward, thereby moving the new battery upward, thus completing the battery swapping. This avoids the problem of existing battery swapping devices requiring manual pushing and pulling of the battery, which leads to high labor intensity. For example, patent application CN202211004753.0 discloses a new energy vehicle battery replacement device. This solution uses a combination of a docking limiting post, an elastic pushing strip, a pressing operating plate, a semi-circular extrusion pushing block II, a supporting docking clamp post, and an elastic pushing docking block. One end of the supporting docking clamp post passes through the inner surface of the elastic pushing strip. The elastic pushing docking block pushes the elastic pushing strip to both sides. The pressing operating plate pushes the top of the elastic pushing strip inward. When the inner surface of the elastic pushing docking block and the elastic pushing strip are docked, the docking limiting post docks with the bottom end of the supporting docking clamp post. At the same time, the semi-circular extrusion pushing block II on the inner surface of the pressing operating plate extrudes the outer surface of the elastic pushing strip, pushing and limiting its position. This device is capable of replacing batteries and solves the problems of high labor intensity and slow battery replacement speed caused by manual battery transport, thus achieving the effect of battery replacement. However, all of the above solutions have some problems. The above solutions rely on rigid clamping and snap-fit ​​structures to achieve the connection. The vibration generated during vehicle use can easily cause fatigue and wear of the connecting parts. After the connecting parts are worn out due to fatigue and wear, the fit gap will cause the connecting parts to loosen. The battery pack is prone to displacement or shaking under dynamic conditions such as vehicle vibration, acceleration and deceleration, which can cause poor electrode contact, resulting in power outages, voltage fluctuations, and even damage to the battery casing or compartment due to friction and collision. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive battery pack module and a battery swapping device to solve the problem that during vehicle use, vibrations caused by the vehicle can lead to fatigue and wear of connecting components, resulting in loosening of the connecting components due to the gaps in the fit. This, in turn, can cause the battery pack to shift or shake under dynamic conditions such as vehicle vibration, acceleration, and deceleration, leading to poor electrode contact, power outages, and voltage fluctuations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A car battery pack module includes a battery compartment and a battery pack body. The battery pack body is installed inside the battery compartment. Multiple locking blocks are installed on the outer wall of the battery pack body, each with a first locking slot. Multiple locking valves are installed inside the battery compartment, each with a second locking slot. The second locking slot and the first locking slot are on the same side of the locking block, and the second locking slot is located above the first locking slot. Multiple linkage blocks are slidably connected to the inner wall of the battery compartment. All linkage blocks are made of permanent magnet material. When the locking valves are energized, the magnetic poles of the linkage blocks and the locking valves are opposite poles. Linkage springs are installed between the linkage blocks and the inner wall of the battery compartment. Multiple linkage slots are formed on the lower end face of the battery pack body. The two ends of each linkage slot... The locking valve is connected to the positioning slot and the second locking slot respectively. A push block is slidably connected within each of the multiple linkage slots. The locking valve is electrically connected to the vehicle's BSCS system. When the BSCS system cuts off the locking valve circuit, the multiple locking valves are embedded in the multiple first locking slots respectively. Multiple locking blocks cooperate with the locking valves to disperse vibration stress through multi-point uniform locking, reducing fatigue wear of local components. The primary locking mechanism, utilizing the first locking slot and the locking valve, combined with the auxiliary locking structure consisting of the second locking slot, linkage blocks, and linkage springs, forms a dual locking mechanism, enhancing overall connection rigidity. The linkage springs buffer vibration energy, reducing rigid collisions between components. The sliding of the push block within the linkage slots adapts to displacement caused by vibration, preventing loosening of the connection. Simultaneously, the vehicle's BSCS system's electrical control of the locking valves ensures stable locking. These designs guarantee the vibration resistance and stability of the connection between the battery pack and the battery compartment, reduce component fatigue wear caused by vibration, thereby avoiding poor electrode contact, ensuring continuous and stable power supply, and improving the durability and operational reliability of the battery pack module.

[0007] Preferably, pressure angles are provided at the inner corners of both the first and second locking slots, and the sides of the multiple pressure angles closest to the center of the first and second locking slots are all machined into an arc shape. The design of pressure angles at the inner corners of the first and second locking slots, and the arc shape of the pressure angles closest to the center of the first and second locking slots, effectively avoids stress concentration problems caused by rigid contact in the automotive battery pack module, preventing cracks or even breakage of the locking components during long-term use. The arc-shaped structure also reduces the frictional resistance when the locking valve engages and disengages from the locking slot, reducing component wear, avoiding mechanical damage caused by frequent operation, and extending the service life of the components. Simultaneously, the pressure angles combined with the arc design enhance the tightness and stability of the locking mechanism, ensuring that the battery pack maintains a firm connection under conditions such as vehicle vibration and impact from battery swapping equipment operation, thereby guaranteeing the structural reliability, connection stability, and mechanical durability of the automotive battery pack module.

[0008] Preferably, guide blocks are installed on the end faces of the multiple locking blocks near the battery compartment, and the radial cross-sections of the multiple guide blocks are trapezoidal. The installation of guide blocks with trapezoidal radial cross-sections on the end faces of the locking blocks effectively avoids the problems of prolonged installation time and component collision damage caused by alignment difficulties during battery pack installation. The trapezoidal structure utilizes inclined planes for guidance, automatically correcting the battery pack position, reducing the accuracy requirements for manual or mechanical alignment, and minimizing component impact wear caused by positional deviations during installation. Simultaneously, the guide blocks prevent jamming during battery pack insertion, ensuring smooth entry into the battery compartment and avoiding deformation or damage to critical components such as locking blocks and locking valves due to forced installation. This ensures the high efficiency of battery pack module installation, component safety, and overall operational reliability, effectively improving the stability of battery swapping operations and extending equipment lifespan.

[0009] Preferably, all of the locking blocks are made of any one of the following materials: high-strength steel, aluminum alloy, and titanium alloy. Each of the locking blocks has a stress-bearing surface, which is heat-treated to achieve a hardness of HRC45-60. The use of high-strength steel, aluminum alloy, or titanium alloy as high-performance materials for the locking blocks, along with the heat treatment of the stress-bearing surfaces to achieve a hardness of HRC45-60, effectively avoids deformation and breakage caused by insufficient component strength in automotive battery modules, as well as rapid wear failure due to poor wear resistance. High-strength materials ensure that the locking blocks are not prone to plastic deformation or breakage when subjected to vibrations and impacts during battery installation, disassembly, and vehicle operation. A suitable heat-treated hardness range maintains a certain degree of toughness while ensuring material rigidity, enhancing the wear resistance of the stress-bearing surfaces, reducing wear from frequent contact with components such as the locking valve, and preventing increased brittleness due to excessive hardness, thus preventing cracks or breakage under stress. This ensures the stability, reliability, and durability of the automotive battery module connection structure, extends the overall service life of the equipment, and reduces maintenance costs.

[0010] Preferably, the battery compartment is equipped with a number of buffer blocks corresponding to the guide blocks. These buffer blocks are made of rubber and contact the guide blocks respectively. Installing rubber buffer blocks corresponding to the guide blocks within the battery compartment utilizes the good elasticity and energy absorption properties of rubber to effectively prevent damage and deformation of components caused by the impact of hard collisions between the guide blocks and the battery compartment during battery pack installation and removal. When the battery pack approaches the battery compartment, the buffer blocks contact the guide blocks, absorbing and dispersing the kinetic energy generated by relative motion, reducing mechanical impact noise and lowering the risk of component loosening due to vibration. Simultaneously, the buffer blocks can mitigate the impact force at the moment of locking, protecting precision components such as locking blocks and locking valves, preventing wear and fatigue damage caused by frequent impacts. This ensures the stable operation of the vehicle battery pack module, the integrity of structural components, and the long-term reliability of the system, improving the safety of battery swapping operations and extending equipment lifespan.

[0011] This invention also provides a battery swapping device suitable for the aforementioned automotive battery module, comprising a base, a scissor arm, a support base, a first motor, and a first screw. The scissor arm includes a first arm, a second arm, and a control system. The first and second arms are hinged at their middle portions to form a retractable X-shaped frame. The base and support base both have sliding grooves. One end of the first and second arms is respectively hinged to the base and support base, and the other end is slidably connected to the two sliding grooves. Multiple positioning posts are mounted on the upper surface of the support base, and multiple positioning slots are provided on the lower surface of the battery pack body. The first motor and control system are both mounted on the base. The first screw is threaded to the lower end of the first arm and connected to the first motor. The No. 1 motor and control system are electrically connected. A scissor arm structure is used as the vertical lifting mechanism, utilizing an X-shaped frame formed by the hinge of arm one and arm two to achieve stable extension and retraction. Compared to multi-stage transmission mechanisms, this simplifies the power path and reduces potential failure points. The sliding fit design of the slide groove and hinge point ensures uniform force distribution on the scissor arm during lifting, reducing the risk of component wear. The cooperation between the positioning column and the battery pack positioning slot enables quick and accurate docking, avoiding human error. The single power source design of the No. 1 motor driving the No. 1 screw avoids frequent start-stop and direction switching of complex linkage systems, improving operational reliability. The precise control of the motor by the control system ensures smooth lifting and reduces the risk of battery pack displacement due to vibration. These designs guarantee the structural stability, operational accuracy, and durability of the battery swapping equipment, while improving the replacement efficiency and connection reliability of the battery pack modules, reducing maintenance costs and failure rates.

[0012] Preferably, a tilt sensor is installed at the center of the support base, and an audible and visual alarm is installed on the base. Both the tilt sensor and the audible and visual alarm are electrically connected to the control system. Installing the tilt sensor at the center of the support base and electrically connecting it to the audible and visual alarm and the control system, through real-time monitoring and immediate feedback, effectively avoids problems such as misaligned battery pack installation and loose connections caused by the tilt of the support base. The tilt sensor continuously monitors the horizontal state of the support base. Once the tilt angle exceeds a preset threshold, it immediately transmits a signal to the control system, triggering the audible and visual alarm to issue a warning, reminding the operator or automatically pausing the battery swapping process. This prevents uneven force on the battery pack due to uneven support surfaces, avoiding abnormal wear of locking components, collision damage between the battery compartment and the battery pack, and even safety hazards such as the battery pack falling off. This ensures the safety, stability, and installation accuracy of the battery swapping equipment, effectively improving equipment reliability and battery swapping success rate.

[0013] Preferably, the lower ends of the first and second arms are threadedly connected to a second screw, and a second motor is installed on the base. The second screw is connected to the second motor, and the second motor is electrically connected to the control system. The lower ends of the first and second arms are connected to the second motor on the base via the second screw and are connected to the control system. This design, through a precise fine-tuning mechanism, avoids platform tilting caused by uneven ground or uneven load, as well as the resulting misalignment of the battery pack and accelerated wear of components. When the tilt sensor detects tilting of the support base, the control system can drive the second motor to rotate the second screw, adjusting the difference in extension length on both sides of the scissor arm to achieve rapid automatic leveling. This corrects the platform posture without manual intervention, preventing collisions and jamming between the battery pack and battery compartment due to tilting, reducing the risk of abnormal stress on locking components, thus ensuring the installation accuracy, operational stability, and structural durability of the battery swapping equipment, effectively improving swapping efficiency and equipment reliability.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention installs multiple locking blocks on the outer wall of the battery pack body, each with a first locking groove. Multiple locking valves are installed inside the battery compartment, each with a second locking groove. Multiple linkage blocks are slidably connected to the inner wall of the battery compartment, and linkage springs are installed between each linkage block and the inner wall of the battery compartment. Multiple linkage grooves are formed on the lower end face of the battery pack body, and pushing blocks are slidably connected within each linkage groove. By using multiple locking blocks in conjunction with locking valves, vibration stress is dispersed through multi-point uniform locking, reducing fatigue wear of local components and improving the durability and operational reliability of the battery pack module.

[0016] 2. This invention provides pressure angles at the inner corners of both the first and second locking slots, and processes the pressure angles closer to the center of the first and second locking slots into an arc shape. This avoids stress concentration problems caused by rigid contact in the automotive battery pack module and battery swapping equipment, and prevents the locking components from cracking or even breaking during long-term use. It also ensures the structural reliability, connection stability and mechanical durability of the automotive battery pack module.

[0017] 3. This invention effectively avoids the problems of time-consuming installation and component collision damage caused by alignment difficulties during the battery pack installation process by installing guide blocks on the end faces of multiple locking blocks near the battery compartment. This design ensures the high efficiency of battery pack module installation, component safety, and overall operational reliability, effectively improving the stability of battery swapping operations and the service life of the equipment. Attached Figure Description

[0018] Figure 1This is a diagram showing the state of the battery pack body in the automotive battery pack module and battery swapping equipment of the present invention before removal.

[0019] Figure 2 This is a diagram showing the state of the battery pack body in the automotive battery pack module and battery swapping equipment of the present invention when it is removed.

[0020] Figure 3 This is a diagram showing the state of the battery pack body in the automotive battery pack module and battery swapping equipment of the present invention after it has been removed.

[0021] Figure 4 This is an isometric view of the automotive battery pack module and battery swapping device of the present invention, viewed from the rear.

[0022] Figure 5 This is a state diagram showing the state of the linkage block and solenoid valve locking the locking block in the automotive battery pack module and battery swapping equipment of the present invention.

[0023] Figure 6 This is a state diagram of the linkage block and solenoid valve unlocking the locking block in the automotive battery pack module and battery swapping equipment of the present invention.

[0024] In the diagram: 1. Battery compartment; 2. Battery pack body; 3. Base; 4. Scissor arm; 401. Arm 1; 402. Arm 2; 403. Support base; 404. Screw 1; 405. Screw 2; 406. Slide groove; 407. Positioning pin; 408. Positioning slot; 409. Locking block; 410. Locking valve; 411. Locking slot 1; 412. Locking slot 2; 501. Motor 1; 502. Motor 2; 6. Control system; 701. Linkage block; 702. Linkage slot; 703. Push block; 704. Linkage spring; 801. Pressure angle; 802. Guide block; 803. Force-bearing surface; 804. Buffer block; 9. Tilt sensor. Detailed Implementation

[0025] Please see Figures 1 to 5 This invention provides an automotive battery pack module and a battery swapping device, the technical solution of which is as follows:

[0026] Please refer to the following: A car battery pack module and battery swapping device. Figures 1 to 5The system includes a battery compartment 1, a battery pack body 2, a base 3, a scissor arm 4, a support base 403, a first motor 501, a first screw 404, and a control system 6. The battery pack body 2 is installed inside the battery compartment 1. The scissor arm 4 includes a first arm 401 and a second arm 402, which are hinged at the middle to form a telescopic X-shaped frame. The upper end of the first arm 401 and the lower end of the second arm 402 are respectively hinged to the base 3 and the support base 403. Both the base 3 and the support base 403 have grooves 406. The lower end of the first arm 401 and the upper end of the second arm 402 are slidably connected in the two grooves 406. Multiple positioning posts 407 are installed on the upper surface of the support base 403. A positioning post 407 is installed at the center of the support base 403. The battery pack includes a tilt sensor 9, an audible and visual alarm mounted on the base 3, a second screw 405 threadedly connected to the lower ends of the first arm 401 and the second arm 402, a second motor 502 mounted on the base 3, and the second screw 405 connected to the second motor 502. Multiple positioning slots 408 are formed on the lower end face of the battery pack body 2, and multiple positioning posts 407 are respectively installed in the multiple positioning slots 408. A first motor 501 is mounted on the base 3, and a first screw 404 is threadedly connected to the lower end of the first arm 401 and connected to the first motor 501. Multiple locking blocks 409 are mounted on the outer wall of the battery pack body 2, and each locking block 409 has a first locking slot 411. Multiple locking valves 410 are installed inside the battery compartment 1. The control system... The system 6 is installed on the base 3. Motor 1 501, Motor 2 502, locking valve 410, tilt sensor 9, and audible and visual alarm are all electrically connected to the control system 6. Multiple locking blocks 409 have secondary locking slots 412. The secondary locking slots 412 and primary locking slots 411 are on the same side of the locking blocks 409, and the secondary locking slots 412 are located above the primary locking slots 411. Multiple linkage blocks 701 are slidably connected to the inner wall of the battery compartment 1. Linkage springs 704 are installed between the linkage blocks 701 and the inner wall of the battery compartment 1. Multiple linkage slots 702 are opened on the lower end face of the battery pack body 2. The two ends of the multiple linkage slots 702 are connected to the positioning slot 408 and the secondary locking slots 412, respectively. Each slot 702 has a sliding push block 703. Pressure angles 801 are provided at the inner corners of locking slots 411 and 412. The sides of the multiple pressure angles 801 closest to the center of locking slots 411 and 412 are machined into an arc shape. Guide blocks 802 are installed on the end faces of multiple locking blocks 409 near the battery compartment 1. The radial cross-sections of the multiple guide blocks 802 are trapezoidal. Buffer blocks 804, corresponding in number to the guide blocks 802, are installed inside the battery compartment 1. The multiple buffer blocks 804 are made of rubber and contact the multiple guide blocks 802. The multiple locking blocks 409 are all made of high-strength steel, and each surface of the multiple locking blocks 409 has a force-bearing surface 803.Multiple stress-bearing surfaces 803 are heat-treated to a hardness of HRC52. When the control system 6 cuts off the circuit of the locking valve 410, the multiple locking valves 410 are respectively embedded in multiple locking slots 411.

[0027] When working, please refer to Figures 1 to 5 When the vehicle battery pack module and battery swapping equipment are running, after the vehicle stops at the designated position, the control system 6 starts motor 1 501 and motor 2 502 to drive screw 1 404 and screw 2 405 to rotate synchronously. During the rotation of screw 1 404 and screw 2 405, the first arm 401 and the second arm 402 of the scissor arm 4 extend and retract, causing the support base 403 to rise below the battery compartment 1. At this time, the positioning post 407 on the support base 403 inserts into the positioning groove 408 at the lower end of the battery pack body 2 to complete the initial positioning. At the same time, the guide block 802 guides the battery pack body 2 until the guide block 802 contacts the buffer block 804 for buffering. During the rising process of the support base 403, the tilt sensor 9 monitors the horizontal state of the support base 403 in real time. If the tilt exceeds the threshold, the control system 6 triggers an audible and visual alarm, and at the same time, the first screw 1 404 and screw 2 405 are driven by motor 1 501 and motor 2 502 to finely adjust the angle of the scissor arm 4 for leveling. After leveling, the control system 6 activates the locking valve 410, which engages in the locking slot 411 of the locking block 409 for locking. Simultaneously, the pushing block 703 slides in the linkage slot 702 under the push of the positioning pin 407, and pushes the linkage block 701 outwards to the second locking slot 412. At this time, the linkage spring 704 is compressed and contracts until the linkage block 701 disengages from the second locking slot 412. During battery replacement, the control system 6 disconnects the locking valve 410 circuit to unlock it. The first motor 501 and the second motor 502 simultaneously drive the scissor arm 4 to descend and remove the battery pack body 2. The reverse operation allows for the installation of a new battery pack. The entire process, through the coordinated operation of the first motor 501, the second motor 502, the tilt sensor 9, the audible and visual alarm, the locking structure, and the control system 6, achieves precise positioning, leveling, locking, and unlocking of the battery pack.

[0028] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. An automotive battery pack module, characterized in that, The battery pack includes a battery compartment (1) and a battery pack body (2). The battery pack body (2) is installed inside the battery compartment (1). Multiple locking blocks (409) are installed on the outer wall of the battery pack body (2). Each of the multiple locking blocks (409) has a first locking groove (411). Multiple locking valves (410) are installed inside the battery compartment (1). Each of the multiple locking blocks (409) has a second locking groove (412). The second locking groove (412) and the first locking groove (411) are on the same side of the locking block (409), and the second locking groove (412) is located above the first locking groove (411). The inner wall of the battery compartment (1) slides upwards. Multiple linkage blocks (701) are dynamically connected. A linkage spring (704) is installed between each of the multiple linkage blocks (701) and the inner side wall of the battery compartment (1). Multiple linkage grooves (702) are opened on the lower end surface of the battery pack body (2). The two ends of the multiple linkage grooves (702) are respectively connected to the positioning groove (408) and the second locking groove (412). A push block (703) is slidably connected in each of the multiple linkage grooves (702). The locking valve (410) is electrically connected to the BSCS system of the vehicle. When the BSCS system of the vehicle cuts off the circuit of the locking valve (410), the multiple locking valves (410) are respectively embedded in the multiple first locking grooves (411).

2. The automotive battery pack module according to claim 1, characterized in that: Pressure angles (801) are provided on the inner corners of the first locking groove (411) and the second locking groove (412), and the side of each pressure angle (801) near the center of the first locking groove (411) and the second locking groove (412) is machined into an arc shape.

3. The automotive battery pack module according to claim 2, characterized in that: Each of the locking blocks (409) has a guide block (802) installed on its end face near the battery compartment (1), and the radial cross-section of the guide blocks (802) is trapezoidal.

4. The automotive battery pack module according to claim 3, characterized in that: The locking blocks (409) are made of any one of the following materials: high-strength steel, aluminum alloy and titanium alloy. Each of the locking blocks (409) has a force-bearing surface (803) on its surface. The force-bearing surface (803) is heat-treated and has a hardness of HRC45 to 60 after processing.

5. The automotive battery pack module according to claim 3, characterized in that: The battery compartment (1) is equipped with a number of buffer blocks (804) corresponding to the number of guide blocks (802). The multiple buffer blocks (804) are made of rubber material and each of the multiple buffer blocks (804) contacts the multiple guide blocks (802).

6. A battery swapping device suitable for the automotive battery module described in claims 1 to 5, characterized in that, The system includes a base (3), a scissor lift (4), a support base (403), a first motor (501), and a first screw (404). The scissor lift (4) includes a first arm (401), a second arm (402), and a control system (6). The first arm (401) and the second arm (402) are hinged at the middle to form a telescopic X-shaped frame. The base (3) and the support base (403) are both provided with sliding grooves (406). One end of the first arm (401) and the second arm (402) are respectively hinged to the base (3) and the support base (403). The upper end is slidably connected to two sliding grooves (406) respectively. Multiple positioning columns (407) are installed on the upper surface of the support base (403). Multiple positioning grooves (408) are opened on the lower surface of the battery pack body (2). The first motor (501) and the control system (6) are both installed on the base (3). The first screw (404) is threadedly connected to the lower end of the first arm (401). The first screw (404) is connected to the first motor (501). The first motor (501) and the control system (6) are electrically connected.

7. The automotive battery pack module and battery swapping device according to claim 6, characterized in that: An inclination sensor (9) is installed at the center of the support base (403), and an audible and visual alarm is installed on the base (3). Both the inclination sensor (9) and the audible and visual alarm are electrically connected to the control system (6).

8. The automotive battery pack module and battery swapping device according to claim 7, characterized in that: The lower ends of the first arm (401) and the second arm (402) are threaded with a second screw (405). A second motor (502) is installed on the base (3). The second screw (405) is connected to the second motor (502). The second motor (502) is electrically connected to the control system (6).

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