Replaceable battery protection chassis for new energy automobile
By introducing guiding, lifting, and buffering structures into the battery protection chassis of new energy vehicles, combined with motor drive, the problem of insufficient impact force of the battery protection chassis against stones is solved, and convenient battery disassembly and replacement are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO JINGKUNFANGSHE METAL MATERIALS CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-05
AI Technical Summary
Existing battery protection chassis for new energy vehicles are ineffective at buffering the impact of stones and are not convenient for battery removal and replacement.
It adopts a structure including a protective chassis, guide components, rotating components, sliding components, and buffer springs, and achieves battery protection and convenient replacement through guidance, lifting, buffering, and motor drive.
It effectively reduces the impact damage to the battery from stones, and the motor-driven design allows for convenient battery removal and replacement.
Smart Images

Figure CN121973708A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a battery protection chassis, and more particularly to a replaceable battery protection chassis for new energy vehicles, belonging to the field of new energy vehicle technology. Background Technology
[0002] The power battery pack for new energy vehicles is installed on the chassis of the vehicle. After the battery pack is installed, in order to prevent the battery pack from being directly collided with foreign objects on the ground when the vehicle floor hits the ground, thus causing damage to the battery pack, a protective structure needs to be installed on the outside of the battery pack for protection.
[0003] The existing battery protection chassis for new energy vehicles is problematic in actual use. When new energy vehicles are driving, stones on the ground are easily kicked up, which can impact and damage the battery. The current protection method is to cover the battery with a protective plate, but this method is not effective in buffering the impact of stones, resulting in poor protection. In addition, it is inconvenient to remove the battery from the chassis and to disassemble and replace the battery in actual use. Summary of the Invention
[0004] The main purpose of this invention is to solve the problems of difficulty in effectively buffering the impact of stones and inconvenience in disassembling and replacing batteries, and to provide a replaceable battery protection chassis for new energy vehicles.
[0005] The objective of this invention can be achieved by adopting the following technical solution: A replaceable battery protection chassis for new energy vehicles includes a protective chassis and guide assemblies mounted on both sides of the protective chassis. A lifting plate is mounted on the guide assemblies, and a rotating assembly is mounted on the protective chassis. A first rack is provided on the lifting plate, and a first gear meshing with the first rack is mounted on the rotating assembly. A second gear is mounted on the rotating assembly. A sliding assembly is mounted on the protective chassis, and a battery rack is mounted on the sliding assembly. A second rack meshing with the second gear is mounted on the battery rack. Multiple buffer springs are mounted at the bottom of the battery rack, with one end of each buffer spring connected to a first connecting plate. A protective plate is mounted on the first connecting plate.
[0006] Preferably, the guiding assembly includes a guide rod, a guide ring, and a first connecting post. Guide rods are installed on both sides of the protective chassis. A guide ring is slidably installed on the guide rod. A first connecting post is installed on the guide ring. One end of the first connecting post is connected to the support plate.
[0007] Preferably, a first side column is installed on one of the lifting plates, and a second side column is installed on the other lifting plate, with the first rack installed at one end of the second side column and one end of the first side column.
[0008] Preferably, the rotating assembly includes a motor and a rotating rod, a support assembly is mounted on the protective chassis, a motor is mounted on the support assembly, a rotating rod is mounted on the output end of the motor, and the first gear is mounted on the rotating rod.
[0009] Preferably, the support assembly includes a motor outer frame and a side rod, the side rod is mounted on the protective chassis, the motor outer frame is mounted on one end of the side rod, and the motor is mounted on the motor outer frame.
[0010] Preferably, a support rod is mounted on the battery rack, and the second rack is mounted on one end of the support rod.
[0011] Preferably, the battery is mounted on the battery holder.
[0012] Preferably, the sliding assembly includes a support column, a slip ring, and a sliding rod. The sliding rod is mounted on the protective chassis, the slip ring is slidably mounted on the sliding rod, the support column is mounted on the slip ring, and the battery holder is mounted on one end of the support column.
[0013] Preferably, a limiting plate is installed on the slide rod, a second connecting plate is installed on the limiting plate, an electromagnet is installed on the second connecting plate, a second connecting post is installed on the slip ring, and an iron block that works in conjunction with the electromagnet is installed at one end of the second connecting post.
[0014] Preferably, a top rod is installed on the top of the second connecting plate, and a pressure plate is installed at one end of the top rod.
[0015] Beneficial technical effects of the present invention: 1. The replaceable battery protection chassis for new energy vehicles according to the present invention, through the synergistic action of the protective plate and the buffer spring, when stones are splashed on the road, the protective plate can block the stones, making it less likely for the stones to damage the battery. By setting the buffer spring, it is easy to absorb the impact of the stones on the protective plate, thereby reducing the impact force of the splashed stones on the battery. By setting the lifting plate, it is easy to lift and limit the protective plate. By setting the guide ring and the guide rod to slide, it is easy to guide and limit the lifting plate. By setting the first connecting column, it is easy to support the lifting plate. By setting the first side column and the second side column, it is easy to support the first rack.
[0016] 2. By setting up a motor, the electromagnet is turned off, releasing its attraction to the iron block. The motor starts, driving the rotating rod to rotate. When the rotating rod rotates, it drives the first gear to rotate. The rotation of the first gear moves the lifting plate, thus opening the protective chassis. At this time, the rotation of the rotating rod drives the second gear to rotate. The rotation of the second gear moves the second rack. Due to the elasticity of the buffer spring, the battery rack can be moved when the lifting plate moves. When the lifting plate moves away from the protective plate, the buffer spring extends, causing the protective plate to return to its original position. At this time, the battery rack is removed from the protective chassis, and the operator removes the battery from the protective chassis for disassembly and replacement. The side rod and the motor frame work together to support the motor. The rotating rod is connected to the protective chassis via a bearing. The support rod supports the second rack. The electromagnet and the second connecting column work together to position the slidable battery rack. The sliding rod and the sliding ring are connected to guide and limit the battery rack. The second connecting column supports the iron block. The top rod and the pressure plate work together to position the battery. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first rack structure of the present invention; Figure 3 This is a schematic diagram of the second gear structure of the present invention; Figure 4 This is a schematic diagram of the second rack structure of the present invention; Figure 5 This is a schematic diagram of the motor structure of the present invention; Figure 6 This is a schematic diagram of the first rack structure of the present invention; Figure 7 This is a schematic diagram of the protective chassis structure of the present invention; Figure 8 This is a schematic diagram of the iron block structure of the present invention; Figure 9 This is a schematic diagram of the buffer spring structure of the present invention; Figure 10 This is a schematic diagram of the battery rack structure of the present invention; Figure 11 This is a schematic diagram of the electromagnet structure of the present invention.
[0018] In the diagram: 1. Protective chassis; 11. Lifting plate; 2. Guide rod; 21. Guide ring; 22. First connecting column; 3. First side column; 31. First rack; 32. Second side column; 33. First gear; 4. Motor; 41. Motor frame; 42. Side rod; 43. Rotating rod; 5. Second gear; 51. Second rack; 52. Support rod; 6. Protective plate; 61. First connecting plate; 62. Battery rack; 63. Battery; 64. Buffer spring; 7. Iron block; 71. Second connecting plate; 72. Second connecting column; 73. Limiting plate; 74. Electromagnet; 8. Support column; 81. Slip ring; 82. Sliding rod; 9. Top rod; 91. Pressure plate. Detailed Implementation
[0019] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0020] like Figures 1-11As shown, the replaceable battery protection chassis for new energy vehicles provided in this embodiment includes a protective chassis 1 and guide components installed on both sides of the protective chassis 1. A lifting plate 11 is installed on the guide components, and a rotating component is installed on the protective chassis 1. A first rack 31 is provided on the lifting plate 11, and a first gear 33 meshing with the first rack 31 is installed on the rotating component. A second gear 5 is installed on the rotating component. A sliding component is installed on the protective chassis 1, and a battery rack 62 is installed on the sliding component. A second rack 51 meshing with the second gear 5 is installed on the battery rack 62. Multiple buffer springs 64 are installed at the bottom of the battery rack 62, and one end of each buffer spring 64 is connected to a first connecting plate 61. A protective plate 6 is installed on the first connecting plate 61. The guide components include guide rods 2, guide rings 21, and first connecting posts 22. Guide rods 2 are installed on both sides of the protective chassis 1, and guide rings 21 are slidably installed on the guide rods 2. First connecting posts 22 are installed on the guide rings 21. One end of the first connecting post 22 is connected to the lifting plate 11. The rotating assembly includes a motor 4 and a rotating rod 43. A support assembly is installed on the protective chassis 1. A battery 63 is installed on the battery rack 62. A top rod 9 is installed on the top of the second connecting plate 71. A pressure plate 91 is installed on one end of the top rod 9. By setting the protective plate 6 and the buffer spring 64 to work together, when stones on the road are splashed, the protective plate 6 can block the stones, making it less likely for the stones to damage the battery 63. By setting the buffer spring 64, it is easy to absorb the impact of the stones on the protective plate 6, thereby reducing the impact force of the splashing stones on the battery 63. By setting the lifting plate 11, it is easy to lift and limit the protective plate 6. By setting the guide ring 21 to slide and connect with the guide rod 2, it is easy to guide and limit the lifting plate 11. By setting the first connecting post 22, it is easy to support the lifting plate 11. By setting the first side post 3 and the second side post 32, it is easy to support the first rack 31.
[0021] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, a motor 4 is mounted on the support assembly, a rotating rod 43 is mounted on the output end of the motor 4, and a first gear 33 is mounted on the rotating rod 43. The support assembly includes a motor outer frame 41 and a side rod 42. The side rod 42 is mounted on the protective chassis 1, and the motor outer frame 41 is mounted on one end of the side rod 42. The motor 4 is mounted on the motor outer frame 41. A battery 63 is mounted on the battery rack 62. A top rod 9 is mounted on the top of the second connecting plate 71, and a pressure plate 91 is mounted on one end of the top rod 9. A first side column 3 is mounted on one of the lifting plates 11, and a second side column 32 is mounted on the other lifting plate 11. A first gear 33 is mounted on one end of the second side column 32 and one end of the first side column 3. A rack 31 and a battery holder 62 are mounted with a support rod 52. A second rack 51 is mounted at one end of the support rod 52. The sliding assembly includes a support column 8, a slip ring 81, and a slide rod 82. The slide rod 82 is mounted on the protective chassis 1. A slip ring 81 is slidably mounted on the slide rod 82. The support column 8 is mounted on the slip ring 81. A battery holder 62 is mounted at one end of the support column 8. A limit plate 73 is mounted on the slide rod 82. A second connecting plate 71 is mounted on the limit plate 73. An electromagnet 74 is mounted on the second connecting plate 71. The second connecting column 72 is mounted on the slip ring 81. An iron block 7 that works in conjunction with the electromagnet 74 is mounted at one end of the second connecting column 72. A motor is then installed... 4. Electromagnet 74 is turned off, releasing its attraction to iron block 7. Motor 4 starts, driving rotating rod 43 to rotate. Rotating rod 43 drives first gear 33 to rotate, which in turn moves lifting plate 11, opening the protective chassis 1. Rotating rod 43 then drives second gear 5 to rotate, which in turn moves second rack 51. Because buffer spring 64 is elastic, it moves battery holder 62 as lifting plate 11 moves. When lifting plate 11 moves away from protective plate 6, buffer spring 64 extends, causing protective plate 6 to return to its original position. Battery holder 62 then moves out of protective chassis 1, and the operator removes battery 63. The battery 63 is removed from the protective chassis 1 and replaced. The side rod 42 and the motor frame 41 work together to support the motor 4. The rotating rod 43 is rotatably connected to the protective chassis 1 through the bearing. The support rod 52 supports the second rack 51. The electromagnet 74 and the second connecting column 72 work together to position the slidable battery rack 62. The sliding rod 82 and the sliding ring 81 are slidably connected to guide and limit the battery rack 62. The second connecting column 72 supports the iron block 7. The top rod 9 and the pressure plate 91 work together to position the battery 63.
[0022] In this embodiment, as Figures 1-11 As shown in the figure, the working process of the replaceable battery protection chassis for new energy vehicles provided in this embodiment is as follows: Step 1: When a new energy vehicle is driving on the road, when the tires squeeze a stone and the stone flies up, the protective plate 6 blocks the stone, the buffer spring 64 absorbs the impact of the stone, and provides buffer protection for the battery 63. Step 2: Since the car chassis is a certain distance from the ground, when it is necessary to remove and replace battery 63, electromagnet 74 is turned off, electromagnet 74 releases its attraction to iron block 7, motor 4 starts and drives rotating rod 43 to rotate. When rotating rod 43 rotates, it drives first gear 33 to rotate. When first gear 33 rotates, it can drive lifting plate 11 to move, thereby opening protective chassis 1. At this time, rotating rod 43 will drive second gear 5 to rotate. When second gear 5 rotates, it drives second rack 51 to move. Since buffer spring 64 is elastic, it can move battery rack 62 when lifting plate 11 moves. When lifting plate 11 moves away from protective plate 6, buffer spring 64 extends and drives protective plate 6 to return to its original position. When protective plate 6 contacts the ground, battery rack 62 is removed from protective chassis 1. The staff removes battery 63 from protective chassis 1 and replaces battery 63.
[0023] In summary, in this embodiment, the replaceable battery protection chassis for new energy vehicles, through the coordinated action of the protective plate 6 and the buffer spring 64, allows the protective plate 6 to block stones from splashing on the road, preventing them from damaging the battery 63. The buffer spring 64 absorbs the impact of the stones on the protective plate 6, thus reducing the damage to the battery 63 caused by the impact of the splashing stones. The lifting plate 11 facilitates the lifting and limiting of the protective plate 6. The guide ring 21, slidably connected to the guide rod 2, facilitates the guiding and limiting of the lifting plate 11. The first connecting column 22 provides support for the lifting plate 11. The first side column 3 and the second side column 32 provide support for the first rack 31. With the motor 4 in place, the electromagnet 74 is turned off, releasing its attraction to the iron block 7. The motor 4 then starts, driving the rotating rod 43 to rotate. The rotation of the rotating rod 43 drives the first gear 33 to rotate, which in turn moves the lifting plate 11. When the protective chassis 1 is opened, the rotating rod 43 rotates, which drives the second gear 5 to rotate. The rotation of the second gear 5 drives the second rack 51 to move. Because the buffer spring 64 is elastic, it can move the battery holder 62 when the lifting plate 11 moves. When the lifting plate 11 moves away from the protective plate 6, the buffer spring 64 extends, causing the protective plate 6 to return to its original position. At this time, the battery holder 62 moves out of the protective chassis 1, and the operator removes the battery 63 from the protective chassis 1 and replaces it. This is achieved through the coordinated action of the side rod 42 and the motor outer frame 41. The motor 4 is supported by a rotating rod 43 which is rotatably connected to the protective chassis 1 via a bearing. A support rod 52 is provided to support the second rack 51. An electromagnet 74 and a second connecting column 72 work together to position the slidable battery rack 62. A sliding rod 82 and a sliding ring 81 are slidably connected to guide and limit the battery rack 62. A second connecting column 72 is provided to support the iron block 7. A top rod 9 and a pressure plate 91 work together to position the battery 63.
[0024] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0026] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A replaceable battery protection chassis for new energy vehicles, comprising a protective chassis (1), characterized in that, It also includes guide components installed on both sides of the protective chassis (1), a lifting plate (11) is installed on the guide components, a rotating component is installed on the protective chassis (1), a first rack (31) is provided on the lifting plate (11), a first gear (33) is installed on the rotating component and meshes with the first rack (31), a second gear (5) is installed on the rotating component, a sliding component is installed on the protective chassis (1), a battery rack (62) is installed on the sliding component, a second rack (51) is installed on the battery rack (62) and meshes with the second gear (5), a plurality of buffer springs (64) are installed at the bottom of the battery rack (62), one end of the buffer springs (64) is connected to the first connecting plate (61), and a protective plate (6) is installed on the first connecting plate (61).
2. The replaceable battery protection chassis for new energy vehicles according to claim 1, characterized in that, The guiding assembly includes a guide rod (2), a guide ring (21) and a first connecting post (22). The protective chassis (1) is equipped with guide rods (2) on both sides. The guide ring (21) is slidably mounted on the guide rod (2). The first connecting post (22) is mounted on the guide ring (21). One end of the first connecting post (22) is connected to the lifting plate (11).
3. A replaceable battery protection chassis for new energy vehicles according to claim 2, characterized in that, One of the lifting plates (11) is equipped with a first side column (3), and the other lifting plate (11) is equipped with a second side column (32). The first rack (31) is installed at one end of the second side column (32) and at one end of the first side column (3).
4. A replaceable battery protection chassis for new energy vehicles according to claim 3, characterized in that, The rotating assembly includes a motor (4) and a rotating rod (43). A support assembly is installed on the protective chassis (1), and the motor (4) is installed on the support assembly. The rotating rod (43) is installed at the output end of the motor (4), and the first gear (33) is installed on the rotating rod (43).
5. A replaceable battery protection chassis for new energy vehicles according to claim 4, characterized in that, The support assembly includes a motor outer frame (41) and a side rod (42). The side rod (42) is mounted on the protective chassis (1). The motor outer frame (41) is mounted on one end of the side rod (42). The motor (4) is mounted on the motor outer frame (41).
6. A replaceable battery protection chassis for new energy vehicles according to claim 5, characterized in that, A support rod (52) is installed on the battery rack (62), and a second rack (51) is installed at one end of the support rod (52).
7. A replaceable battery protection chassis for new energy vehicles according to claim 6, characterized in that, The battery (63) is mounted on the battery rack (62).
8. A replaceable battery protection chassis for new energy vehicles according to claim 7, characterized in that, The sliding assembly includes a support column (8), a slip ring (81) and a slide rod (82). The slide rod (82) is mounted on the protective chassis (1). The slip ring (81) is slidably mounted on the slide rod (82). The support column (8) is mounted on the slip ring (81). The battery rack (62) is mounted on one end of the support column (8).
9. A replaceable battery protection chassis for new energy vehicles according to claim 8, characterized in that, A limiting plate (73) is installed on the slide rod (82), a second connecting plate (71) is installed on the limiting plate (73), an electromagnet (74) is installed on the second connecting plate (71), a second connecting post (72) is installed on the slip ring (81), and an iron block (7) that works in conjunction with the electromagnet (74) is installed at one end of the second connecting post (72).
10. A replaceable battery protection chassis for new energy vehicles according to claim 9, characterized in that, A top rod (9) is installed on the top of the second connecting plate (71), and a pressure plate (91) is installed on one end of the top rod (9).