New energy automobile battery pack separation equipment

Abstract

The invention discloses new energy automobile battery pack separation equipment. The new energy automobile battery pack separation equipment comprises a battery cabin, a mounting bottom plate, a vertical plate, a first driving motor, a transmission assembly and an execution assembly; power provided by the first driving motor is transmitted to the execution assembly through the transmission assembly, and the battery compartment is fixed or separated through the execution assembly; the transmission assembly comprises a first transmission chain wheel, a second transmission chain wheel and a transmission chain, the first driving motor drives the first transmission chain wheel to rotate, and the transmission chain drives the second transmission chain wheel to rotate; the execution assembly comprises an outer sleeve, a mother rod, a lead screw and a limiting head, the lead screw is driven to rotate in the outer sleeve through a second transmission chain wheel, the lead screw rotates to drive the mother rod to move along the interior of the outer sleeve, and clamping or separating operation on the two side wall faces of the battery bin on the inner side is achieved; the method has the advantages of being high in response speed, accurate in positioning and convenient to operate, the battery replacement and maintenance efficiency can be improved, and the method is suitable for various types of new energy automobiles.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle battery safety, and in particular to a new energy vehicle battery pack separation device. Background Art

[0002] Nowadays, with the global emphasis on environmental protection and sustainable development, new energy vehicles are becoming popular in the market at an unprecedented speed. Among the many new energy vehicle technologies, lithium battery technology occupies a dominant position, and most new energy vehicles on the market rely on lithium batteries to provide power.

[0003] Lithium batteries are widely used because they have significant advantages, especially high energy density. High energy density means that lithium batteries can store a large amount of electricity in a relatively small volume and weight, which is crucial for new energy vehicles. It can effectively increase the vehicle's range and meet consumers' demand for long-distance travel. It also helps to optimize the overall structural design of the vehicle, making the vehicle lighter and more flexible.

[0004] However, the high-risk characteristics of lithium batteries also pose a serious challenge to the safety of new energy vehicles. Especially when the vehicle encounters some abnormal conditions, such as overheating or short circuit of the battery pack, lithium batteries may face the risk of combustion or even explosion. When the battery pack is overheated, the internal chemical reaction may get out of control, causing the temperature to rise sharply, and then cause combustion. Short circuit conditions may instantly generate huge currents, which will not only damage the battery itself, but also generate enough heat to cause an explosion.

[0005] In actual use scenarios, if the heat dissipation of the battery pack is not timely, it is easy to overheat; or when the vehicle collides, the circuit inside the battery pack may be damaged, causing a short circuit accident. Once these situations occur, they will not only cause serious damage to the vehicle itself, but also pose a huge threat to the safety of the passengers in the car and the surrounding environment.

[0006] Therefore, in order to ensure the safety of new energy vehicles, the research and design of lithium battery safety has become very urgent. In this context, the invention of a new energy vehicle battery pack separation device is of great significance. This device not only needs to facilitate the replacement and maintenance of the battery pack, but also aims to be able to separate the battery pack from other parts of the vehicle in time when the battery pack is in a dangerous condition, thereby avoiding dangerous situations such as battery combustion or explosion that cause greater harm to the vehicle and personnel. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention discloses a new energy vehicle battery pack separation device which is suitable for automatic operation when the battery module of a new energy vehicle is being overhauled, maintained or replaced, or when safety faults such as thermal runaway occur.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A new energy vehicle battery pack separation device, comprising a battery compartment, a mounting base plate, a vertical plate, a first drive motor, a transmission assembly and an actuator assembly;

[0009] The mounting base plate is symmetrically mounted on the bottom of the vehicle by means of bolts, the vertical plate is located on the lower side wall of the mounting base plate, and the battery compartment is located between the vertical plates, the first drive motors are respectively located in the middle of the outer side wall of the vertical plates, the transmission assembly is located in the cavity provided inside the vertical plates, the actuator assembly is located on both sides of the inner side wall of the vertical plates, the power provided by the first drive motor is transmitted to the actuator assembly through the transmission assembly, and the battery compartment is fixed or released through the actuator assembly;

[0010] The transmission assembly includes a first transmission sprocket, a second transmission sprocket and a transmission chain, the first transmission sprocket is located at the middle position inside the cavity, and the first transmission sprocket is located at the output end of the first drive motor, the second transmission sprocket is symmetrically located on both sides of the first transmission sprocket, the first transmission sprocket is respectively connected to the second transmission sprockets on both sides through the transmission chain, the first transmission sprocket is driven to rotate by the first drive motor, and the second transmission sprocket is driven to rotate by the transmission chain;

[0011] The actuator assembly includes an outer sleeve, a mother rod, a screw rod and a limit head, the tail end of the outer sleeve is connected to the inner wall of the vertical plate, the screw rod is located inside the outer sleeve, and the tail end of the screw rod is connected to the second transmission sprocket, the screw rod and the second transmission sprocket rotate synchronously, the tail end of the mother rod is inserted into the outer sleeve, and the mother rod and the outer sleeve are rotationally limited, a first threaded hole is provided inside the mother rod, the screw rod and the first threaded hole cooperate with each other, the limit head is located at the front end of the mother rod, and the screw rod is driven to rotate inside the outer sleeve through the second transmission sprocket. At the same time, the rotation of the screw rod will drive the mother rod to move along the inside of the outer sleeve, and the telescopic adjustment of the limit head is realized by changing the rotation direction of the screw rod, thereby realizing the clamping or separation operation of the two side walls of the inner battery compartment.

[0012] Preferably, side panels are respectively provided on the two side walls of the battery compartment, and grooves are symmetrically provided on the side panels in the front and rear directions, and the limit heads cooperate with the grooves to achieve the clamping of the battery compartment.

[0013] Preferably, a spacing adjustment component is provided inside the vertical plate, and the spacing adjustment component includes a threaded rod, a sliding block and a second driving motor. The vertical plate is symmetrically provided with sliding grooves on one side close to the mounting base plate, the threaded rods are respectively located inside the sliding grooves, and both ends of the threaded rods are connected to the wall of the sliding groove by rotation, the second driving motor is located on the outer wall of the sliding groove, the output end of the second driving motor is connected to the threaded rod, the sliding block is located in the sliding groove, and the wall of the sliding block is provided with a second threaded hole, which is connected to the threaded rod through the second threaded hole, and the sliding block is connected to the outer sleeve at the upper end, and the threaded rod is driven to rotate by the second driving motor, and the sliding block is driven to move in the sliding groove, and then the spacing between the outer sleeves is adjusted according to battery compartments of different sizes, so that the limit head at the front end of the outer sleeve and the grooves on both sides of the battery compartment are adapted to each other.

[0014] Preferably, the sliding block is connected to the rear end of the outer sleeve via a connecting plate.

[0015] Preferably, the length of the transmission chain is adjusted accordingly according to the actual size of the battery compartment, thereby ensuring normal transmission of power.

[0016] Preferably, an adjustment opening is provided on a side of the vertical plate away from the mounting base plate, and the transmission chain is adjusted through the adjustment opening.

[0017] Preferably, the first drive motor is connected to the transmission assembly via a reduction assembly, the reduction assembly comprising a housing, a sun gear, a planetary gear, a ring gear, a planet carrier and an output shaft, the housing is located on the outer wall of the vertical plate, the sun gear is located at the output end of the first drive motor, a plurality of planetary gears are located outside the sun gear, the inner sides of the planetary gears are meshed with the sun gear, the outer sides of the planetary gears are meshed with the ring gear provided on the inner wall of the housing, one end of the output shaft is connected to the first transmission sprocket, and the other end is connected to the planet carrier, the other end of the planet carrier is rotatably connected to a plurality of planetary gears respectively, the output power of the first drive motor increases the torque through the reduction assembly, and is finally transmitted to the output shaft and drives the first transmission sprocket to rotate together.

[0018] Preferably, a shock-absorbing buffer layer is provided on the lower end wall of the battery compartment, and the battery pack is protected from falling by the shock-absorbing buffer layer.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention improves operational safety by cooperating with the transmission assembly and the actuator assembly to ensure automated control during the battery pack detachment or installation process, thereby avoiding potential safety hazards such as electric shock and fire that may occur during manual operation. In particular, when handling high-voltage batteries, automated operation can better ensure the safety of operators.

[0021] 2. The present invention makes the replacement and maintenance of battery packs faster and more efficient, especially in scenarios such as battery swap stations, which can significantly shorten the battery replacement time and improve the operating efficiency of the entire vehicle.

[0022] 3. The present invention enhances flexibility and expansibility. By setting a spacing adjustment component, the device can adapt to battery packs of different models and specifications. It has good compatibility and expansibility and is suitable for application in various types of electric vehicles.

[0023] 4. The present invention ensures rapid response in emergency situations. In emergency situations (such as fire, collision, thermal runaway, etc.), the emergency release device can achieve rapid and safe separation of the battery pack, reduce the risk of accidents, protect the safety of personnel, and at the same time ensure damage to the vehicle, keeping the danger within the minimum range. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] In the attached picture:

[0026] Figure 1 It is a schematic diagram of the overall structure of the separation device of the present invention;

[0027] Figure 2 is a side cross-sectional view of a disengagement device of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure inside the vertical plate of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the transmission assembly of the present invention;

[0030] Figure 5 It is a structural schematic diagram of a part of the execution component of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the execution component of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the deceleration assembly of the present invention;

[0033] Numbers in the figure: 1. battery compartment; 101. side panel; 102. groove; 103. shock-absorbing buffer layer; 104. electrical interface; 2. mounting base; 201. vertical plate; 202. first drive motor; 203. bolt; 204. adjustment port; 301. first transmission sprocket; 302. second transmission sprocket; 303. transmission chain; 401. outer sleeve; 402. mother rod; 403. screw rod; 404. limit head; 405. first threaded hole; 501. threaded rod; 502. sliding block; 503. second drive motor; 504. sliding groove; 505. second threaded hole; 506. connecting plate; 601. outer casing; 602. sun gear; 603. planetary gear; 604. ring gear; 605. planetary carrier; 606. output shaft. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] like Figure 1-Figure 7As shown, a new energy vehicle battery pack separation device includes a battery compartment 1, a mounting base plate 2, a vertical plate 201, a first drive motor 202, a transmission assembly and an execution assembly; the mounting base plate 2 is symmetrically installed on the bottom of the car by means of bolts 203, the vertical plate 201 is located on the lower side wall of the mounting base plate 2, and the battery compartment 1 is located between the vertical plates 201, the first drive motors 202 are respectively located in the middle of the wall outside the vertical plates 201, the first drive motor 202 and the transmission assembly are connected by means of a reduction assembly, the reduction assembly includes a housing 601, a sun gear 602, a planetary gear 603, a gear ring 604, a planet carrier 605 and an output shaft 606, the housing 601 is located on the outer wall of the vertical plate 201, the sun gear 602 is located at the output end of the first drive motor 202, a plurality of the planetary gears 603 are located on the periphery of the sun gear 602, the inner side of the planetary gear 603 is meshed with the sun gear 602, and the planetary gear 603 The outer side is meshed with the gear ring 604 provided on the inner wall of the shell 601, one end of the output shaft 606 is connected to the first transmission sprocket 301, and the other end is connected to the planet carrier 605, and the other end of the planet carrier 605 is respectively connected to a plurality of planetary wheels 603 for rotation, and the output power of the first drive motor 202 increases the torque through the reduction assembly, and is finally transmitted to the output shaft 606 and drives the first transmission sprocket 301 to rotate together, the transmission assembly is located in the cavity provided inside the vertical plate 201, and the actuator is located on both sides of the inner wall of the vertical plate 201, wherein the upper end of the battery compartment 1 is provided with an electrical interface 104 for connecting the battery pack to the vehicle and playing a positioning role at the same time; the power provided by the first drive motor 202 is transmitted to the actuator through the transmission assembly, and the battery compartment 1 is fixed or detached through the actuator, and the lower end wall of the battery compartment 1 is provided with a shock-absorbing buffer layer 103, and the battery pack is protected from falling through the shock-absorbing buffer layer 103;

[0036] Furthermore, if Figure 3-Figure 5As shown, the transmission assembly includes a first transmission sprocket 301, a second transmission sprocket 302 and a transmission chain 303, the first transmission sprocket 301 is located in the middle position of the inner side of the cavity, and the first transmission sprocket 301 is located at the output end of the first drive motor 202, the second transmission sprocket 302 is symmetrically located on both sides of the first transmission sprocket 301, the first transmission sprocket 301 is respectively connected to the second transmission sprockets 302 on both sides through the transmission chains 303 provided, the first drive motor 202 drives the first transmission sprocket 301 to rotate, and the transmission chain 303 drives the second transmission sprocket 302 to rotate, the length of the transmission chain 303 is adjusted accordingly according to the actual size of the battery compartment 1, thereby ensuring the normal transmission of power, the vertical plate 201 is provided with an adjustment port 204 on the side away from the mounting base plate 2, and the transmission chain 303 is adjusted through the adjustment port 204;

[0037] Furthermore, if Figure 5 and Figure 6 As shown, the actuator includes an outer sleeve 401, a mother rod 402, a screw rod 403 and a limit head 404. The tail end of the outer sleeve 401 is connected to the inner wall of the vertical plate 201, the screw rod 403 is located inside the outer sleeve 401, and the tail end of the screw rod 403 is connected to the second transmission sprocket 302. The screw rod 403 rotates synchronously with the second transmission sprocket 302. The tail end of the mother rod 402 is inserted into the outer sleeve 401, and the mother rod 402 and the outer sleeve 401 are rotated and limited. A first threaded hole 405 is provided inside the mother rod 402, and the screw rod 403 cooperates with the first threaded hole 405. The limit head 404 is located at the front end of the mother rod 402, and the screw rod 403 is driven to rotate inside the outer sleeve 401 through the second transmission sprocket 302. At the same time, the rotation of the screw rod 403 will drive the mother rod 402 to move along the inside of the outer sleeve 401, and the telescopic adjustment of the limit head 404 is achieved by changing the rotation direction of the screw rod 403. The side walls of the battery compartment 1 are respectively provided with side panels 101, and the side panels 101 are symmetrically provided with grooves 102 front and back. The limit head 404 cooperates with the grooves 102 to realize the clamping of the battery compartment 1, thereby realizing the clamping or separation operation of the side walls of the inner battery compartment 1.

[0038] Furthermore, if Figure 3As shown, a spacing adjustment component is provided inside the vertical plate 201, and the spacing adjustment component includes a threaded rod 501, a sliding block 502 and a second drive motor 503. The vertical plate 201 is symmetrically provided with sliding grooves 504 on one side close to the mounting base plate 2. The threaded rods 501 are respectively located inside the sliding grooves 504, and the two ends of the threaded rods 501 are connected to the wall of the sliding groove 504. The second drive motor 503 is located on the outer wall of the sliding groove 504, and the output end of the second drive motor 503 is connected to the threaded rod 501. The sliding block 502 is located at the The sliding groove 504 is provided with a second threaded hole 505 on the wall of the sliding block 502, and the second threaded hole 505 is used to cooperate with the threaded rod 501, and the sliding block 502 is connected to the tail end of the outer sleeve 401 through a connecting plate 506. The threaded rod 501 is driven to rotate by the second driving motor 503, and the sliding block 502 is driven to move in the sliding groove 504, and then the distance between the outer sleeves 401 is adjusted according to the different sizes of the battery compartment 1, so that the limit head 404 at the front end of the outer sleeve 401 is adapted to the grooves 102 on both sides of the battery compartment 1.

[0039] Furthermore, the present application is also provided with a battery management system (BMS), whose function is to monitor the key parameters of the battery pack in real time, such as voltage, temperature, and health status, to ensure that the battery is within a safe operating range, and to detect abnormalities. When the BMS detects battery abnormalities (such as overcharging, over-discharging, excessive battery temperature, abnormal internal resistance, etc.), it will issue an alarm signal, interact with the execution component, and take action.

[0040] Working principle:

[0041] First, fix the device to the bottom of the car, with the battery compartment 1 located between the vertical plates 201. The first drive motor 202 increases the torque through the reduction assembly to drive the transmission assembly to work. The transmission assembly distributes power to the actuator assembly through the transmission chain 303. The actuator assembly clamps or separates the battery compartment 1 through the cooperation of the screw rod 403 and the mother rod 402. At the same time, the spacing of the outer sleeve 401 is adjusted according to the size of the battery compartment 1 through the spacing adjustment assembly to ensure that the limit head 404 is adapted to the groove 102. Complete the separation or fixing operation of different battery compartments 1.

[0042] Example 1:

[0043] Normal working conditions: When the vehicle is running, the actuator pushes out the mother rod 402, and clamps the grooves 102 on both sides of the battery compartment 1 through the limit head 404, fixes the battery compartment 1 in the vehicle body, and makes the electrical interface 104 firmly connected, providing stable power output, no disconnection, no poor contact. Other control modules are in standby mode, and all systems operate normally. At this time, the BMS status continuously monitors the voltage, current, temperature and health status of the battery. And transmits the data to the vehicle control system through the communication interface. At this time, the operating system is working normally, and there is no alarm prompt on the system interface. The driver drives normally. This working condition can be applied to the connection and fixation field of the automobile battery compartment 1.

[0044] Example 2:

[0045] Maintenance and inspection conditions: When the vehicle is undergoing routine maintenance or battery system inspection, such as when the battery pack in the battery compartment 1 needs maintenance or replacement, the system enters maintenance mode, and the battery can be manually disconnected from the system in the operating interface. At this time, the first drive motor 202 in the actuator receives the command and starts working, retracting the mother rod 402 to pull the limit head 404 out of the grooves 102 on both sides of the battery compartment 1. At this time, the battery compartment 1 loses its fixed support and will fall off due to gravity. At this time, the maintenance personnel can use relevant mechanical devices to slowly remove the battery compartment 1, try to avoid wear on the electrical interface 104, and extend the life of the battery compartment 1. In this condition, the BMS system can provide the maintenance personnel with the monitored battery information before the battery is disconnected, so as to achieve more convenient and effective vehicle maintenance.

[0046] Example 3:

[0047] Abnormal alarm condition: When the BMS detects an abnormality in the battery (such as overvoltage, overcurrent, overheating, etc.), it sends an alarm signal to the control module and displays specific fault information. At this time, the control module activates the alarm function, such as sound and light alarm (buzzer, warning light flashing). Waiting for the operator to issue an instruction (such as starting to disengage). At this time, the first drive motor 2025 in the execution component receives the instruction and starts to operate. The torque is increased through the deceleration component and transmitted to the screw rod 403. The screw rod 403 starts to operate and drives the mother rod 402 to start to retract. When the limit head 404 is withdrawn from the grooves 102 on both sides of the battery compartment 1, the battery compartment 1 loses its fixed support. Due to the action of gravity, it is separated from the vehicle body and falls to the ground. After passing through the shock-absorbing buffer layer 103, the battery compartment 1 is not easy to cause secondary damage after landing. After the operation is completed, the operation interface displays "Disengagement Completed". At this point, the abnormal battery compartment 1 is separated from the vehicle body, and the driver can drive away to a safe area through the backup power source (backup power or fuel) to proceed to the next step of accident handling.

[0048] Example 4:

[0049] Installation conditions of battery compartment 1: Preparations need to be made before installing the battery compartment 1. Check the equipment first, such as whether all parts are intact and whether deformation occurs. Check whether there are any abnormalities in the guidance and positioning of the battery compartment 1 and the vehicle body, that is, check the electrical interface 104 to ensure that the electrical connector is not damaged and free of foreign matter. After everything is ready, use a mechanical device to place the battery compartment 1 at the bottom of the vehicle body to ensure that the guidance and positioning are correct. The battery and vehicle body connection connector of the present invention uses a quick-connect electrical socket. The connection degree of the electrical interface 104 determines whether the guidance and positioning of the battery compartment 1 is correct. After the positioning is completed, the machine loads the battery compartment 1 into the vehicle body. At this time, linkage detection is performed, and the BMS detects the real-time information of the battery and feeds it back to the vehicle control system. The BMS communicates with the vehicle control system to ensure that the signal transmission is normal. When everything is correct, the driver or maintenance personnel issues a fixed instruction through the operation interface, and the first drive motor 202 in the execution component receives the instruction, extends the mother rod 402, and the limit head 404 is stuck in the grooves 102 on both sides of the battery compartment 1, so that the battery compartment 1 is fixed and supported. At this point, the battery compartment 1 is fixed.

[0050] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new energy vehicle battery pack separation device, characterized in that: It includes a battery compartment, a mounting base plate, a vertical plate, a first drive motor, a transmission assembly and an actuator assembly; The mounting base plate is symmetrically mounted on the bottom of the vehicle by means of bolts, the vertical plate is located on the lower side wall of the mounting base plate, and the battery compartment is located between the vertical plates, the first drive motors are respectively located in the middle of the outer side wall of the vertical plates, the transmission assembly is located in the cavity provided inside the vertical plates, the actuator assembly is located on both sides of the inner side wall of the vertical plates, the power provided by the first drive motor is transmitted to the actuator assembly through the transmission assembly, and the battery compartment is fixed or released through the actuator assembly; The transmission assembly includes a first transmission sprocket, a second transmission sprocket and a transmission chain, the first transmission sprocket is located at the middle position inside the cavity, and the first transmission sprocket is located at the output end of the first drive motor, the second transmission sprocket is symmetrically located on both sides of the first transmission sprocket, the first transmission sprocket is respectively connected to the second transmission sprockets on both sides through the transmission chain, the first transmission sprocket is driven to rotate by the first drive motor, and the second transmission sprocket is driven to rotate by the transmission chain; The actuator assembly includes an outer sleeve, a mother rod, a screw rod and a limit head, the tail end of the outer sleeve is connected to the inner wall of the vertical plate, the screw rod is located inside the outer sleeve, and the tail end of the screw rod is connected to the second transmission sprocket, the screw rod and the second transmission sprocket rotate synchronously, the tail end of the mother rod is inserted into the outer sleeve, and the mother rod and the outer sleeve are rotationally limited, a first threaded hole is provided inside the mother rod, the screw rod and the first threaded hole cooperate with each other, the limit head is located at the front end of the mother rod, and the screw rod is driven to rotate inside the outer sleeve through the second transmission sprocket. At the same time, the rotation of the screw rod will drive the mother rod to move along the inside of the outer sleeve, and the telescopic adjustment of the limit head is realized by changing the rotation direction of the screw rod, thereby realizing the clamping or separation operation of the two side walls of the inner battery compartment.

2. A new energy vehicle battery pack separation device according to claim 1, characterized in that: Side panels are respectively provided on the two side walls of the battery compartment, and grooves are symmetrically provided on the side panels. The limit heads cooperate with the grooves to achieve the clamping of the battery compartment.

3. A new energy vehicle battery pack separation device according to claim 2, characterized in that: A spacing adjustment component is provided inside the vertical plate, and the spacing adjustment component includes a threaded rod, a sliding block and a second driving motor. The vertical plate is symmetrically provided with sliding grooves on one side close to the mounting base plate, the threaded rods are respectively located inside the sliding grooves, and both ends of the threaded rods are connected to the sliding groove wall surface by rotation, the second driving motor is located on the outer wall surface of the sliding groove, the output end of the second driving motor is connected to the threaded rod, the sliding block is located in the sliding groove, and the sliding block wall surface is provided with a second threaded hole, and is connected to the threaded rod through the second threaded hole, the sliding block is connected to the outer sleeve at the upper end, and the threaded rod is driven to rotate by the second driving motor, and the sliding block is driven to move in the sliding groove, and then the spacing between the outer sleeves is adjusted according to battery compartments of different sizes, so that the limit head at the front end of the outer sleeve and the grooves on both sides of the battery compartment are adapted to each other.

4. A new energy vehicle battery pack separation device according to claim 3, characterized in that: The sliding block is connected to the rear end of the outer sleeve via a connecting plate.

5. The new energy vehicle battery pack separation device according to claim 3 is characterized in that: The length of the transmission chain is adjusted accordingly according to the actual size of the battery compartment to ensure normal transmission of power.

6. A new energy vehicle battery pack separation device according to claim 5, characterized in that: The vertical plate is provided with an adjustment opening on one side away from the mounting base plate, and the transmission chain is adjusted through the adjustment opening.

7. A new energy vehicle battery pack separation device according to claim 1, characterized in that: The first drive motor is connected to the transmission assembly via a reduction assembly, which includes a housing, a sun gear, a planetary gear, a gear ring, a planet carrier and an output shaft. The housing is located on the outer wall of the vertical plate, the sun gear is located at the output end of the first drive motor, and a plurality of planetary gears are located on the periphery of the sun gear. The inner sides of the planetary gears are meshed with the sun gear, and the outer sides of the planetary gears are meshed with the gear ring provided on the inner wall of the housing. One end of the output shaft is connected to the first transmission sprocket, and the other end is connected to the planet carrier. The other end of the planet carrier is rotatably connected to a plurality of planetary gears respectively. The output power of the first drive motor increases the torque through the reduction assembly, and is finally transmitted to the output shaft and drives the first transmission sprocket to rotate together.

8. The new energy vehicle battery pack separation device according to claim 1, characterized in that: The lower end wall of the battery compartment is provided with a shock absorbing buffer layer.

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