New energy vehicle lock catch type battery pack quick replacement mechanism

Abstract

This utility model discloses a quick-change mechanism for a latch-type battery pack in new energy vehicles; it belongs to the field of new energy vehicle technology; its key technical features include a base, the top of which is connected to a protective box via a lifting mechanism. The top of the protective box is open and hinged with two symmetrically arranged flip covers. Two symmetrically arranged lock seats are fixedly connected to the center of the top of the protective box. This utility model integrates the lifting mechanism, protective box, flip covers, electric push rod, and support plate, making the battery replacement device and protective box a single unit. When replacing the battery, only the device and the internal battery need to be moved to the replacement site, and then the electric push rod is activated to lift the support plate and battery out of the protective box, which facilitates subsequent installation and eliminates the need for multiple battery handling, saving time and effort and improving battery replacement efficiency. At the same time, the protective box and flip covers can protect the battery during transportation and storage.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, specifically a fast-replacement mechanism for a locking battery pack in new energy vehicles. Background Technology

[0002] With the development of science and technology and people's increasing attention to the ecological environment, new energy vehicles, as one of the important products of environmental protection and green travel, are driving the rapid development of new energy vehicles and gradually becoming popular in people's lives. More and more users are buying new energy vehicles. New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source and integrate advanced technologies in vehicle power control and drive, forming automobiles with advanced technical principles and new technologies and structures.

[0003] For example, Chinese patent CN222116761U discloses a high-efficiency battery replacement device for new energy vehicles. The device includes a support frame with a replacement assembly for battery replacement. The replacement assembly includes a lifting plate movably disposed within the support frame. A fixing block is fixedly installed on the top of the support frame. A bidirectional lead screw is movably connected to the inner wall of the fixing block. A drive motor is fixedly connected to the end of the bidirectional lead screw. Two symmetrically distributed moving blocks are threaded onto the outer surface of the bidirectional lead screw. A drive rod is movably connected to the side of each moving block. This application, by setting up the replacement assembly and using a drive motor, enables the drive motor to rotate the bidirectional lead screw, thereby causing the two moving blocks on its surface to move towards each other. The drive rod then pushes the lifting plate upwards until the battery is lifted to the replacement position, thus improving battery replacement efficiency and avoiding manual handling, which is time-consuming and labor-intensive.

[0004] The existing replacement device requires transporting the battery to the replacement site first, then removing the battery from the protective box, and finally placing it on a lifting platform for installation. This process involves multiple battery handling operations, which is time-consuming and labor-intensive. Furthermore, while the existing device uses a limiting plate to position the battery and prevent it from shifting, ensuring precise placement, the battery's position on the lifting platform is somewhat random. The limiting plate in the existing device only restricts the battery's movement and cannot guarantee that it will be centered on the platform, making it difficult to ensure accurate placement. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a quick-change mechanism for lock-type battery packs in new energy vehicles. This technical solution solves the problem mentioned in the background art, which states that existing replacement devices require transporting the battery to the replacement site, removing it from the protective box, and then placing it on a lifting platform for installation. This process involves multiple battery handling operations, which is time-consuming and labor-intensive. Furthermore, while existing replacement devices use limiting plates to position the battery and prevent it from moving, ensuring accurate placement, the battery's position on the lifting platform is somewhat random. The limiting plates in existing devices only restrict the battery's movement and cannot guarantee that it is centered on the platform. Therefore, it remains difficult to ensure accurate battery placement.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quick-change mechanism for a new energy vehicle's latching battery pack includes a base. A protective box is connected to the top of the base via a lifting mechanism. The top of the protective box is open and hinged with two symmetrically arranged flip covers. Two symmetrically arranged locking seats are fixedly connected to the center of the top of the protective box. Each of the flip covers contains a latching assembly that simultaneously engages with the two locking seats. A controller is located on the outside of the protective box. Electric push rods are fixedly connected to the four corners of the bottom inside the protective box. The electric push rods are electrically connected to the controller. A support plate is fixedly connected to the top output end of each electric push rod. A movable support assembly is located at the center of the top of the support plate. An X-axis limiting clamping assembly and a Z-axis fixing clamping assembly are also provided on the support plate. A U-shaped plate is fixedly connected to the bottom of the support plate. A first drive mechanism connected to the X-axis limiting clamping assembly is located at the top of the horizontal plate of the U-shaped plate, and a second drive mechanism connected to the Z-axis fixing clamping assembly is located at the bottom of the horizontal plate of the U-shaped plate.

[0008] Preferably, the lifting mechanism includes a bidirectional lead screw, on which two symmetrically arranged connecting plates are threadedly connected. The top ends of the two connecting plates are hinged to first support plates, and the top ends of the two first support plates are hinged to the bottom of the protective box. The bottom ends of the two connecting plates are hinged to second support plates, and the bottom ends of the two second support plates are hinged to the top of the base. The two first support plates and the two second support plates are symmetrically distributed on the upper and lower sides of the bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to a limit block, and the other end of the bidirectional lead screw is fixedly connected to a rotating handle.

[0009] Preferably, the latch assembly includes symmetrically arranged sliding cavities on both sides of the flip cover, with limit rods slidably arranged in the sliding cavities. Each of the two lock seats has a limit hole adapted to the two limit rods. A spring is also provided in the sliding cavity. The top of the flip cover has a slot communicating with the sliding cavity. The ends of the two limit rods that are close to each other are fixedly connected to a pressing handle by a connecting rod. The connecting rod moves laterally within the slot.

[0010] Preferably, the movable support assembly includes a first through groove at the center of the support plate, two first slide rods are fixedly connected in the first through groove, a slide block is slidably connected to the two first slide rods, a mounting box is fixedly connected to the top of the slide block, and a plurality of support rollers are rotatably connected inside the mounting box, the rolling direction of the support rollers being perpendicular to the sliding direction of the slide block.

[0011] Preferably, the X-axis limiting clamping assembly includes two second through slots symmetrically opened on both sides of the first through slot. A second slide rod is fixedly connected in the second through slot and arranged parallel to the first slide rod. A limiting clamp plate connected to the first driving mechanism is slidably arranged on the second slide rod. A plurality of limiting rollers are rotatably connected to the opposite sides of the two limiting clamp plates. The rolling direction of the limiting rollers is consistent with the rolling direction of the support rollers.

[0012] Preferably, the Z-axis fixing clamping assembly includes two third through slots symmetrically opened on the other two sides of the first through slot. A third slide rod is fixedly connected in the third through slot and is perpendicular to the first slide rod. A fixing clamp plate connected to the second drive mechanism is slidably disposed on the third slide rod.

[0013] Preferably, the first driving mechanism includes a first dual-axis motor fixedly connected to the top of the U-shaped plate, the first dual-axis motor being electrically connected to the controller, and a first lead screw parallel to the second slide rod being fixedly connected to both output ends of the first dual-axis motor, the two limiting clamps being threadedly connected to the two first lead screws respectively, and two first mounting plates corresponding to the two first lead screws being fixedly connected to the bottom of the bearing plate, the ends of the two first lead screws being rotatably connected to the two first mounting plates respectively.

[0014] Preferably, the second drive mechanism includes a second dual-axis motor fixedly connected to the bottom of the U-shaped plate, the second dual-axis motor being electrically connected to the controller, and a second lead screw parallel to the third slide rod being fixedly connected to both output ends of the second dual-axis motor. The two fixed clamping plates are respectively threadedly connected to the two second lead screws. The bottom of the bearing plate is fixedly connected to two second mounting plates corresponding to the two second lead screws, and the ends of the two second lead screws that are far apart from each other are respectively rotatably connected to the two second mounting plates.

[0015] Compared with the prior art, this utility model provides a quick-replacement mechanism for a latch-type battery pack in new energy vehicles, which has the following advantages:

[0016] 1. This utility model integrates a lifting mechanism, a protective box, a flip cover, an electric push rod, and a support plate. By combining the battery replacement device with the protective box, when replacing the battery, the device and its internal battery are simply moved to the replacement site. The device is then moved directly below the replacement position on the vehicle. The electric push rod is then activated to lift the support plate and battery out of the protective box, facilitating subsequent installation. The lifting mechanism then raises the battery to the replacement position, eliminating the need for multiple battery handling operations, saving time and effort, and improving battery replacement efficiency. The protective box and flip cover also protect the battery during transportation and storage.

[0017] 2. This utility model utilizes a combination of a movable support component, an X-axis limiting clamping component, and a Z-axis fixing clamping component. When fixing the battery, the battery is placed approximately at the top center of the support plate. The movable support component allows the battery to slide easily in both the X and Z axes. The X-axis limiting clamping component then limits the battery's position. If the battery deviates in the X-axis direction, the X-axis limiting clamping component will calibrate the battery's position, ensuring it is centered in the X-axis direction. The battery can still move in the Z-axis direction. Finally, the Z-axis fixing clamping component clamps and fixes the battery. During the clamping and fixing process, if the battery deviates in the Z-axis direction, the Z-axis fixing clamping component will also calibrate the battery's position, ensuring it is centered in the Z-axis direction. After the battery is fixed, it will be centered at the top of the support plate, thus ensuring the battery can be accurately moved to the replacement position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective box in this utility model;

[0020] Figure 3 This is a schematic diagram of the locking assembly in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the X-axis limiting clamping assembly and the Z-axis fixing clamping assembly in this utility model;

[0022] Figure 5 This is a schematic diagram of the movable support component in this utility model;

[0023] Figure 6This is a schematic diagram of the structure of the first drive mechanism and the second drive mechanism in this utility model.

[0024] The following components are labeled in the diagram: 1. Base; 2. Lifting mechanism; 201. Bidirectional lead screw; 202. Connecting plate; 203. First support plate; 204. Second support plate; 205. Rotating handle; 3. Protective box; 4. Flip cover; 5. Lock seat; 6. Locking assembly; 601. Slide cavity; 602. Limiting rod; 603. Limiting hole; 604. Spring; 605. Press handle; 7. Controller; 8. Electric push rod; 9. Bearing plate; 10. Movable support assembly; 1001. First through groove; 1002. First slide rod; 1003. Slide seat; 1004. Mounting box; 1005. Support roller; 11. X-axis limiting clamping assembly; 1101. Second through groove; 1102. Second slide rod; 1103. Limiting clamping plate; 1104. Limiting roller; 12. Z-axis fixed clamping assembly; 1201. Third through groove; 1202. Third slide rod; 1203. Fixed clamping plate; 13. U-shaped plate; 14. First drive mechanism; 1401. First dual-axis motor; 1402. First lead screw; 15. Second drive mechanism; 1501. Second dual-axis motor; 1502. Second lead screw. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] Example 1

[0027] Please refer to Figures 1 to 6 As shown, the quick-replacement mechanism for a new energy vehicle's latching battery pack includes a base 1. A protective box 3 is connected to the top of the base 1 via a lifting mechanism 2. The top of the protective box 3 is open and hinged with two symmetrically arranged flip covers 4. Two symmetrically arranged locking seats 5 are fixedly connected to the center of the top of the protective box 3. Each of the two flip covers 4 contains a latching assembly 6 that simultaneously engages with the two locking seats 5. A controller 7 is located on the outside of the protective box 3. Electric push rods 8 are fixedly connected to the four corners of the bottom inside the protective box 3. The electric push rods 8 are connected to the controller... The device 7 is electrically connected, and the top output ends of each electric push rod 8 are fixedly connected to a support plate 9. A movable support assembly 10 is provided at the top center of the support plate 9. An X-axis limiting clamping assembly 11 and a Z-axis fixed clamping assembly 12 are also provided on the support plate 9. A U-shaped plate 13 is fixedly connected to the bottom of the support plate 9. A first drive mechanism 14 connected to the X-axis limiting clamping assembly 11 is provided at the top of the horizontal plate of the U-shaped plate 13, and a second drive mechanism 15 connected to the Z-axis fixed clamping assembly 12 is provided at the bottom of the horizontal plate of the U-shaped plate 13.

[0028] Those skilled in the art will understand that by integrating the battery replacement device with the protective box 3, this utility model allows for easy battery replacement. Simply move the device, along with the internal battery, to the replacement site, then move the device directly below the replacement position on the vehicle. The electric push rod 8 is then activated to lift the support plate 9 and the battery out of the protective box 3, facilitating subsequent installation. The lifting mechanism 2 then elevates the battery to the replacement position, eliminating the need for multiple battery handling operations, saving time and effort, and improving battery replacement efficiency. Simultaneously, the protective box 3 and the flip cover 4 provide protection for the battery during transportation and storage.

[0029] Furthermore, this utility model utilizes the coordinated use of the movable support component 10, the X-axis limiting clamping component 11, and the Z-axis fixing clamping component 12. When fixing the battery, the battery is placed approximately at the top center of the support plate 9. The movable support component 10 allows the battery to slide easily in the X-axis and Z-axis directions. The X-axis limiting clamping component 11 then limits the battery on both sides. If the battery deviates in the X-axis direction, the X-axis limiting clamping component 11 will calibrate the battery's position, ensuring it is centered in the X-axis direction. At this time, the battery can still move in the Z-axis direction. Finally, the Z-axis fixing clamping component 12 clamps and fixes the battery. During the clamping and fixing process, if the battery deviates in the Z-axis direction, the Z-axis fixing clamping component 12 will also calibrate the battery's position, ensuring it is centered in the Z-axis direction. After the battery is fixed, it will be centered at the top of the support plate 9, thus ensuring that the battery can be accurately moved to a replacement position when raised.

[0030] Furthermore, in this utility model, the four electric push rods 8 are turned on and off by the controller 7. The controller 7 can turn on and off the four electric push rods 8 simultaneously, so that the four electric push rods 8 work synchronously, thereby ensuring that the bearing plate 9 can move up and down stably.

[0031] Example 2

[0032] Furthermore, the lifting mechanism 2 includes a bidirectional lead screw 201, on which two symmetrically arranged connecting plates 202 are threadedly connected. The top of each of the two connecting plates 202 is hinged to a first support plate 203, and the top of each of the two first support plates 203 is hinged to the bottom of the protective box 3. The bottom of each of the two connecting plates 202 is hinged to a second support plate 204, and the bottom of each of the two second support plates 204 is hinged to the top of the base 1. The two first support plates 203 and the two second support plates 204 are symmetrically distributed on the upper and lower sides of the bidirectional lead screw 201. One end of the bidirectional lead screw 201 is fixedly connected to a limit block, and the other end of the bidirectional lead screw 201 is fixedly connected to a rotating handle 205.

[0033] Those skilled in the art will understand that, in use, the lifting mechanism 2 of this utility model rotates the bidirectional lead screw 201 clockwise by turning the handle 205, thereby driving the two connecting plates 202 to move closer to each other. Through the cooperation of the two first support plates 203 and the two second support plates 204, the protective box 3 is lifted, thereby raising the battery to the replacement position.

[0034] In addition, two limit plates are provided on the bidirectional lead screw 201. When the two connecting plates 202 approach each other and are in contact with the two limit plates, the protective box 3 rises to its maximum height.

[0035] Example 3

[0036] Furthermore, the latch assembly 6 includes symmetrically arranged sliding cavities 601 on both sides of the flip cover 4. Limiting rods 602 are slidably arranged in the sliding cavities 601. Limiting holes 603 adapted to the two limiting rods 602 are provided on both lock seats 5. Springs 604 are also provided in the sliding cavities 601. A slot communicating with the sliding cavities 601 is provided on the top of the flip cover 4. Press handles 605 are fixedly connected to the two limiting rods 602 at their close ends through connecting rods. The connecting rods move laterally in the slots.

[0037] Those skilled in the art will understand that when the flip cover 4 of this utility model needs to be opened, the two pressing handles 605 are pressed relative to each other, thereby driving the two limiting rods 602 to move closer to each other (at this time, the two springs 604 will be compressed), so that the ends of the two limiting rods 602 that are far apart from each other simultaneously disengage from the limiting holes 603 on the two side lock seats 5, and then the flip cover 4 can be rotated upward to open.

[0038] In addition, when closing the flip cover 4, first press the two pressing handles 605 relative to each other, so that the two limiting rods 602 retract into the sliding cavities 601 on both sides at the same time to avoid affecting the closing of the flip cover 4. Then rotate to close the flip cover 4. Finally, release the pressing handles 605. The spring 604 will lose pressure and return to its original state. Under the elastic effect of the spring 604, the two limiting rods 602 will be pushed into the limiting holes 603 on the lock seats 5 on both sides, thereby locking and fixing the flip cover 4.

[0039] Example 4

[0040] Furthermore, the movable support assembly 10 includes a first through groove 1001 opened at the center of the support plate 9. Two first slide rods 1002 are fixedly connected in the first through groove 1001. A slide block 1003 is slidably connected to the two first slide rods 1002. A mounting box 1004 is fixedly connected to the top of the slide block 1003. Several support rollers 1005 are rotatably connected inside the mounting box 1004. The rolling direction of the support rollers 1005 is perpendicular to the sliding direction of the slide block 1003.

[0041] Those skilled in the art will understand that the working principle of the movable support component 10 in this utility model is as follows: the battery is placed on top of several support rollers 1005 inside the mounting box 1004. When the battery is subjected to a force in the X-axis direction, the battery drives the slide block 1003 to slide on the first slide rod 1002. When the battery is subjected to a force in the Z-axis direction, the battery will move directly on the support rollers 1005.

[0042] Additionally, it should be noted that the slide block 1003 has rolling balls inside. The slide block 1003 is slidably connected to the first slide rod 1002 through the cooperation of the balls. The slide block 1003 does not directly contact the first slide rod 1002, so the sliding friction is converted into rolling friction. The friction force is small, so the friction force of the slide block 1003 when sliding is less than the friction force between the battery and the support roller 1005. This allows the slide block 1003 to move together when the battery is moved by the force in the X-axis direction. Moreover, an anti-slip sleeve can be provided on the support roller 1005 to further increase the friction force.

[0043] Example 5

[0044] Furthermore, the X-axis limiting clamping assembly 11 includes two second through slots 1101 symmetrically opened on both sides of the first through slot 1001. A second slide rod 1102, which is parallel to the first slide rod 1002, is fixedly connected in the second through slot 1101. A limiting clamping plate 1103 connected to the first drive mechanism 14 is slidably arranged on the second slide rod 1102. A plurality of limiting rollers 1104 are rotatably connected to the opposite sides of the two limiting clamping plates 1103. The rolling direction of the limiting rollers 1104 is consistent with the rolling direction of the support roller 1005.

[0045] Those skilled in the art will understand that, in use, the X-axis limiting clamping assembly 11 of this utility model drives the two limiting clamps 1103 to slide on the two second slide rods 1102 respectively through the first driving mechanism 14. When the battery is being calibrated for limiting, the two limiting clamps 1103 are driven to move closer to each other through the first driving mechanism 14, so that the limiting rollers 1104 on the two limiting clamps 1103 are in contact with the two sides of the battery, thus limiting. When the battery deviates in the X-axis, the limiting roller 1104 on one side that contacts the side wall of the battery first will push the battery to move until the limiting roller 1104 on the other side is in contact with the other side of the battery. At this time, the battery will be in the center position in the X-axis direction.

[0046] Furthermore, because the limiting roller 1104 is in contact with the battery, and the rolling direction of the limiting roller 1104 is consistent with the rolling direction of the support roller 1005, the battery can still move in the Z-axis direction. A rubber buffer sleeve is fitted on the limiting roller 1104 to protect the battery and prevent the limiting roller 1104 from pressing too hard on the battery, which could cause damage.

[0047] Example 6

[0048] Furthermore, the Z-axis fixed clamping assembly 12 includes two third through slots 1201 symmetrically opened on the other two sides of the first through slot 1001. A third slide rod 1202 perpendicular to the first slide rod 1002 is fixedly connected in the third through slot 1201. A fixed clamping plate 1203 connected to the second drive mechanism 15 is slidably arranged on the third slide rod 1202.

[0049] Those skilled in the art will understand that, in use, the Z-axis fixing clamping assembly 12 of this utility model drives the two fixing clamps 1203 to slide on the two third slide rods 1202 respectively through the second drive mechanism 15. When fixing the battery, the two fixing clamps 1203 are driven to move closer to each other through the second drive mechanism 15 to clamp and fix the battery. When the battery deviates in the Z-axis, the fixing clamp 1203 that contacts the side wall of the battery first will push the battery to move on the support roller 1005 until the fixing clamp 1203 on the other side abuts against the side of the battery. At this time, the battery will be in the center position in the X-axis direction and will be clamped and fixed by the two fixing clamps 1203.

[0050] In addition, rubber buffer pads are provided on the sides of the two fixing plates 1203 that are close to each other to protect the battery and prevent the fixing plates 1203 from clamping the battery too tightly, which could damage the battery.

[0051] Example 7

[0052] Furthermore, the first drive mechanism 14 includes a first dual-axis motor 1401 fixedly connected to the top of the cross plate of the U-shaped plate 13. The first dual-axis motor 1401 is electrically connected to the controller 7. Both output ends of the first dual-axis motor 1401 are fixedly connected to a first lead screw 1402 parallel to the second slide bar 1102. Two limiting clamps 1103 are threadedly connected to the two first lead screws 1402 respectively. The bottom of the bearing plate 9 is fixedly connected to two first mounting plates corresponding to the two first lead screws 1402. The ends of the two first lead screws 1402 that are far apart from each other are rotatably connected to the two first mounting plates respectively.

[0053] Those skilled in the art will understand that, when the first drive mechanism 14 of this utility model is in use, the controller 7 starts the first dual-axis motor 1401 to work. When the first dual-axis motor 1401 works, it will drive the two first dual-axis motors 1401 to rotate synchronously, thereby driving the two limit clamps 1103 to move relative to each other or in opposite directions.

[0054] In addition, the first dual-axis motor 1401 and the controller 7 used in this utility model are both existing technologies, and the connection between the first dual-axis motor 1401 and the controller 7 is also existing technology, so they will not be elaborated on here.

[0055] Example 8

[0056] Furthermore, the second drive mechanism 15 includes a second dual-axis motor 1501 fixedly connected to the bottom of the cross plate of the U-shaped plate 13. The second dual-axis motor 1501 is electrically connected to the controller 7. Both output ends of the second dual-axis motor 1501 are fixedly connected to a second lead screw 1502 parallel to the third slide rod 1202. Two fixed clamping plates 1203 are threadedly connected to the two second lead screws 1502 respectively. The bottom of the bearing plate 9 is fixedly connected to two second mounting plates corresponding to the two second lead screws 1502. The ends of the two second lead screws 1502 that are far apart from each other are rotatably connected to the two second mounting plates respectively.

[0057] Those skilled in the art will understand that, when the second drive mechanism 15 of this utility model is in use, the second dual-axis motor 1501 is started by the controller 7. When the second dual-axis motor 1501 is working, it will drive the two second dual-axis motors 1501 to rotate synchronously, thereby driving the two fixed clamps 1203 to move relative to each other or in opposite directions.

[0058] In addition, the second dual-axis motor 1501 used in this utility model is also existing technology, and the connection between the second dual-axis motor 1501 and the controller 7 is also existing technology, so it will not be elaborated on here.

[0059] The working principle and usage process of this device are as follows: When fixing the battery, place it roughly at the top center of the support plate 9. The movable support component 10 allows the battery to slide easily in the X-axis and Z-axis directions. At this time, the X-axis limiting clamping component 11 limits the battery on both sides. If the battery deviates in the X-axis direction, the X-axis limiting clamping component 11 will calibrate the battery's position to center it in the X-axis direction. The battery can still move in the Z-axis direction. Finally, the Z-axis fixing clamping component 12 clamps and fixes the battery. During the clamping and fixing process, if the battery deviates in the Z-axis direction, the Z-axis fixing clamping component 12 will also calibrate the battery's position to center it in the Z-axis direction. After the battery is fixed, it will be in the center of the top of the support plate 9, thus ensuring that the battery can be accurately moved to the replacement position when raised.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick replacement mechanism for a lock buckle type battery pack of a new energy vehicle, characterized in that, The device includes a base (1), the top of which is connected to a protective box (3) via a lifting mechanism (2). The top of the protective box (3) is open and hinged with two symmetrically arranged flip covers (4). Two symmetrically arranged lock seats (5) are fixedly connected to the center of the top of the protective box (3). Each of the two flip covers (4) is provided with a locking assembly (6) that cooperates with the two lock seats (5). A controller (7) is provided on the outside of the protective box (3). Electric push rods (8) are fixedly connected to the four corners of the bottom of the protective box (3). The electric push rods (8) are electrically connected to the controller (7). Each of the electric push rods (8) has a bearing plate (9) fixedly connected to its top output end. A movable support assembly (10) is provided at the top center of the bearing plate (9). An X-axis limiting clamping assembly (11) and a Z-axis fixed clamping assembly (12) are also provided on the bearing plate (9). A U-shaped plate (13) is fixedly connected to the bottom of the bearing plate (9). A first drive mechanism (14) connected to the X-axis limiting clamping assembly (11) is provided at the top of the horizontal plate of the U-shaped plate (13). A second drive mechanism (15) connected to the Z-axis fixed clamping assembly (12) is provided at the bottom of the horizontal plate of the U-shaped plate (13).

2. The quick replacement mechanism for battery pack of new energy vehicle according to claim 1, characterized in that, The lifting mechanism (2) includes a bidirectional lead screw (201), on which two symmetrically arranged connecting plates (202) are threaded. The top ends of the two connecting plates (202) are hinged to first support plates (203), the top ends of the two first support plates (203) are hinged to the bottom of the protective box (3), the bottom ends of the two connecting plates (202) are hinged to second support plates (204), the bottom ends of the two second support plates (204) are hinged to the top of the base (1), the two first support plates (203) and the two second support plates (204) are symmetrically distributed on the upper and lower sides of the bidirectional lead screw (201), one end of the bidirectional lead screw (201) is fixedly connected to a limit block, and the other end of the bidirectional lead screw (201) is fixedly connected to a rotating handle (205).

3. The quick replacement mechanism for battery pack of new energy vehicle according to claim 1, characterized in that, The latch assembly (6) includes symmetrically arranged sliding cavities (601) on both sides of the flip cover (4). Limiting rods (602) are slidably arranged in the sliding cavities (601). Limiting holes (603) adapted to the two limiting rods (602) are opened on both lock seats (5). A spring (604) is also provided in the sliding cavity (601). A slot communicating with the sliding cavity (601) is opened on the top of the flip cover (4). The ends of the two limiting rods (602) that are close to each other are fixedly connected to a pressing handle (605) by a connecting rod. The connecting rod moves laterally in the slot.

4. The quick replacement mechanism for battery pack of new energy vehicle according to claim 1, characterized in that, The movable support assembly (10) includes a first through groove (1001) opened at the center of the support plate (9). Two first slide rods (1002) are fixedly connected in the first through groove (1001). A slide block (1003) is slidably connected on the two first slide rods (1002). A mounting box (1004) is fixedly connected to the top of the slide block (1003). A plurality of support rollers (1005) are rotatably connected inside the mounting box (1004). The rolling direction of the support rollers (1005) is perpendicular to the sliding direction of the slide block (1003).

5. The quick-replacement mechanism for a new energy vehicle latch-type battery pack according to claim 4, characterized in that, The X-axis limiting clamping assembly (11) includes two second through slots (1101) symmetrically opened on both sides of the first through slot (1001). A second slide rod (1102) parallel to the first slide rod (1002) is fixedly connected in the second through slot (1101). A limiting clamping plate (1103) connected to the first drive mechanism (14) is slidably arranged on the second slide rod (1102). A plurality of limiting rollers (1104) are rotatably connected to the opposite sides of the two limiting clamping plates (1103). The rolling direction of the limiting rollers (1104) is consistent with the rolling direction of the support roller (1005).

6. The quick replacement mechanism for battery pack of new energy vehicle according to claim 4, characterized in that, The Z-axis fixed clamping assembly (12) includes two third through slots (1201) symmetrically opened on the other two sides of the first through slot (1001). A third slide rod (1202) is fixedly connected in the third through slot (1201) and is perpendicular to the first slide rod (1002). A fixed clamping plate (1203) connected to the second drive mechanism (15) is slidably arranged on the third slide rod (1202).

7. The quick-replacement mechanism for a new energy vehicle latch-type battery pack according to claim 5, characterized in that, The first drive mechanism (14) includes a first dual-axis motor (1401) fixedly connected to the top of the cross plate of the U-shaped plate (13). The first dual-axis motor (1401) is electrically connected to the controller (7). Both output ends of the first dual-axis motor (1401) are fixedly connected to a first lead screw (1402) parallel to the second slide bar (1102). The two limiting clamps (1103) are respectively threaded to the two first lead screws (1402). The bottom of the bearing plate (9) is fixedly connected to two first mounting plates corresponding to the two first lead screws (1402). The ends of the two first lead screws (1402) that are far apart from each other are respectively rotatably connected to the two first mounting plates. 8.The quick replacement mechanism of the new energy vehicle lock buckle type battery pack according to claim 6, characterized in that, The second drive mechanism (15) includes a second dual-axis motor (1501) fixedly connected to the bottom of the cross plate of the U-shaped plate (13). The second dual-axis motor (1501) is electrically connected to the controller (7). The output ends of the second dual-axis motor (1501) on both sides are fixedly connected to a second lead screw (1502) parallel to the third slide rod (1202). The two fixed clamping plates (1203) are respectively threaded to the two second lead screws (1502). The bottom of the bearing plate (9) is fixedly connected to two second mounting plates corresponding to the two second lead screws (1502). The ends of the two second lead screws (1502) that are far apart from each other are respectively rotatably connected to the two second mounting plates.

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