A new energy heavy truck light weight battery rack battery replacement bottom support locking structure

Abstract

The application discloses a new energy heavy truck light-weight battery rack battery replacement bottom support locking structure and relates to the technical field of battery rack battery replacement locking structures. The structure body is provided with a clamping plate through a linkage assembly. The clamping plate is used for locking the edge part of the battery rack. The structure body is provided with a bottom plate on the side corresponding to the clamping plate. The bottom plate is provided with a bearing plate through a buffer assembly. The top surface of the bearing plate is fixedly connected with a pair of limiting columns on one side. The application has a reasonable structure. The linkage assembly is used for rotating the clamping plate. The rotation of the clamping plate locks the side part of the battery rack, thereby avoiding the deviation in the later battery replacement process.

Description

Technical Field

[0001] This invention relates to the field of battery rack battery swapping locking structure technology, and in particular to a battery swapping base locking structure for a lightweight battery rack in a new energy heavy truck. Background Technology

[0002] With the rapid popularization of new energy heavy trucks, the battery swapping mode has become the mainstream energy replenishment method in scenarios such as trunk logistics and short-distance port transportation due to its high efficiency and convenience. At present, most new energy heavy trucks in the industry adopt the chassis bottom battery layout, which is equipped with a dedicated battery rack and battery swapping base structure to support and place the power battery box. Existing battery swapping racks are mostly made of conventional steel structure, which is suitable for mainstream top-mounted and chassis docking battery swapping conditions.

[0003] A battery locking mechanism for a battery swapping system in a new energy mining dump truck, disclosed in announcement number CN119928541B, includes a first locking assembly connected to a battery frame and a second locking assembly connected to a base of the battery rack. The first locking assembly includes a first support seat and a connector. The second locking assembly includes a second support seat, a bearing insert pivotally connected to the support seat, and a drive assembly for locking the bearing insert. The bearing insert has a recessed slot formed thereon, which faces upwards in its free state. When the connector moves toward the bearing insert, it inserts into the recessed slot, and the bearing insert rotates relative to the second support seat as the connector continues to move downwards, causing the recessed slot to rotate by a preset angle and lock. The power output end of the drive assembly abuts against the bearing insert, locking it in place by the drive assembly and the connector. This invention is easily adaptable to the needs of adjusting the locking position of batteries of different specifications. Its simple structure reduces installation and disassembly steps for workers.

[0004] There are still some issues with the battery rack when it is locked during battery swapping.

[0005] When swapping batteries, existing battery racks use a support plate to support the four corners at the bottom. The existing locking structure, which uses a screw and a clamping block, relies mainly on the screw continuously pressing against the clamping block to achieve lateral limiting and locking during actual locking operations. The locking force is concentrated on a local area of ​​the battery rack side wall. Because the locking force is applied in a single point or localized hard compression manner, it is very easy to cause compression deformation of the battery rack side wall and the overall frame. After repeated battery swapping and locking operations over a long period of time, the battery rack is prone to deformation, warping, and other problems. Summary of the Invention

[0006] The purpose of this application is to provide a battery swapping base locking structure for a lightweight battery rack in a new energy heavy truck. This structure achieves the locking of the side of the battery rack by rotating the clamping plate through a linkage component, thereby preventing displacement during the battery swapping process.

[0007] To achieve the above objectives, this application provides the following technical solution: a battery swapping base locking structure for a lightweight battery rack of a new energy heavy truck, comprising: a structural body, on which a clamping plate is provided, the clamping plate being installed on the structural body via a linkage assembly, the clamping plate being used to lock the edge of the battery rack; a base plate being installed on one side of the structural body where the clamping plate is installed, a bearing plate being installed on the base plate via a buffer assembly, and a pair of limiting posts being fixedly connected to one side of the top surface of the bearing plate.

[0008] Preferably, the linkage component includes a fixing frame, a through hole, a cylinder, side plates, a top plate, and a through groove; the fixing frame is installed on the structural body, and a through hole is provided in the middle of the fixing frame; a cylinder is installed at the bottom of the fixing frame, and the telescopic end of the cylinder extends to the top of the fixing frame through the through hole; a pair of side plates are provided, and a pair of side plates are installed on the top of the fixing frame; a top plate is installed at the top of the pair of side plates, and a through groove is provided on the top plate.

[0009] Preferably, a pair of side plates are provided with sliding grooves, and a main shaft is slidably connected inside the sliding grooves. The telescopic end of the cylinder is rotatably connected to the middle of the main shaft. A pair of linkage plates are rotatably connected to the main shaft. A movable groove is provided on the clamping plate, and a pin is fixedly connected inside the movable groove. The other end of the linkage plate is rotatably connected to the pin. The clamping plate is fixedly connected to the rotating shaft, and the two ends of the rotating shaft are rotatably connected to the side plates.

[0010] Preferably, the buffer assembly includes a base, a guide groove, a rod, and a sleeve block; a pair of bases are provided, and the pair of bases are installed on both sides of the top surface of the base plate. Guide grooves are opened on both sides of the base. The two ends of the rod are fixedly connected to the base. Sleeve blocks are slidably connected to the rod. Limiting blocks are fixedly connected to both sides of the sleeve block, and the limiting blocks are slidably connected in the guide groove.

[0011] Preferably, a collar is fixedly connected to the rod body, a first spring is sleeved on the rod body, the two ends of the first spring are fixedly connected to one side of the sleeve block and one side of the collar, a docking seat is fixedly connected to the top surface of the sleeve block, a pulley is rotatably connected to the docking seat, the pulley is rolled on the wedge block, and the wedge block is fixedly connected to the bottom surface of the bearing plate.

[0012] Preferably, a slide rail is fixedly connected to the surface of the base, a pair of sliders are slidably connected to the slide rail, a sleeve is fixedly connected to the pair of sliders, the sleeve is slidably connected to the slide rod, and a shaft seat is fixedly connected to the middle of the slide rod, the shaft seat being fixedly installed on the surface of the slide rail.

[0013] Preferably, the slide rod is fixedly connected to both ends with retaining rings, and a second spring is sleeved on the slide rod, with both ends of the second spring being fixedly connected to the sleeve and the retaining rings, respectively.

[0014] Preferably, a pin is fixedly connected to the surface of the slider, an arm plate is rotatably connected to the pin, and the other end of the arm plate is rotatably connected to a hinge seat, which is fixedly installed on the bottom surface of the support plate.

[0015] In summary, the present invention has the following beneficial effects: 1. This device utilizes the self-weight of the battery rack to trigger mechanical linkage. The wedge block, pulley, and first spring work together to buffer the vertical impact force of the falling material. At the same time, the arm plate, slider, slide rod, and second spring form a two-way buffer structure, which can absorb the impact load on the support plate when the battery rack is placed in all directions, disperse the force, and avoid damage such as deformation and warping of the battery rack due to local pressure. This greatly protects the overall structural integrity of the battery rack and extends its service life. 2. The cylinder-linked clamping plate locking structure is adopted. The clamping plate is driven to rotate by the main shaft and the linkage plate to complete the lateral locking and automatic retraction and release. The locking action is smooth and the force is even, without hard extrusion stress, which ensures the locking accuracy and structural stability of the battery rack. In addition, the linkage structure has a high degree of automation, and the locking and unlocking operations are convenient and smooth, which effectively improves the efficiency of battery swapping operations, adapts to the operation requirements of rapid battery swapping of new energy heavy trucks, and improves the safety of vehicle assembly and operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body; Figure 2 This is a side view of the three-dimensional structure of the main body; Figure 3 A frontal view of the structural body is shown in the schematic diagram. Figure 4 This is a schematic diagram of the three-dimensional structure of the linkage components; Figure 5 A schematic diagram of the cylinder's front view; Figure 6 This is a schematic diagram of the three-dimensional structure of the base plate; Figure 7 This is a schematic diagram of the three-dimensional structure of the support plate; Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 100, structural body; 101, clamping plate; 102, base plate; 103, bearing plate; 104, limiting post; 200, linkage assembly; 201, fixing frame; 202, through hole; 203, cylinder; 204, side plate; 205, top plate; 206, through groove; 207, sliding groove; 208, main shaft; 209, linkage plate; 210, movable groove; 211, pin; 212, rotating shaft; 300, buffer assembly; 3 01. Base; 302. Guide groove; 303. Rod; 304. Sleeve block; 305. Limiting block; 306. Collar ring; 307. First spring; 308. Connecting seat; 309. Pulley; 310. Wedge block; 311. Slide rail; 312. Slider; 313. Sleeve seat; 314. Slide rod; 315. Shaft seat; 316. Snap ring; 317. Second spring; 318. Shaft pin; 319. Arm plate; 320. Hinge seat. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Reference Figure 1 - Figure 8 The diagram shows a battery swapping base locking structure for a lightweight battery rack in a new energy heavy-duty truck. It includes a structural body 100, on which a clamping plate 101 is provided. The clamping plate 101 is installed on the structural body 100 via a linkage component 200 and is used to lock the edge of the battery rack. A base plate 102 is installed on the side of the structural body 100 where the clamping plate 101 is installed. A bearing plate 103 is installed on the base plate 102 via a buffer component 300. A pair of limiting posts 104 are fixedly connected to one side of the top surface of the bearing plate 103.

[0021] Specifically, it should be noted that the support plate 103 supports the four corners of the bottom of the battery rack, and then the limiting post 104 is inserted into the reserved hole of the battery rack. The rotation of the clamping plate 101 locks the four corners of the battery rack to prevent the battery rack from shifting during battery replacement.

[0022] In one embodiment of this invention, the linkage component 200 includes a fixing frame 201, a through hole 202, a cylinder 203, side plates 204, a top plate 205, and a through groove 206. The fixing frame 201 is mounted on the structural body 100, and the through hole 202 is provided in the middle of the fixing frame 201. The cylinder 203 is installed at the bottom of the fixing frame 201, and the telescopic end of the cylinder 203 extends to the top of the fixing frame 201 through the through hole 202. A pair of side plates 204 are provided, and the pair of side plates 204 are installed on the top of the fixing frame 201. The top of the pair of side plates 204 is equipped with... There is a top plate 205, on which a through groove 206 is provided. A pair of side plates 204 are provided with sliding grooves 207. A main shaft 208 is slidably connected inside the sliding grooves 207. The telescopic end of the cylinder 203 is rotatably connected to the middle of the main shaft 208. A pair of linkage plates 209 are rotatably connected to the main shaft 208. A movable groove 210 is provided on the clamping plate 101. A pin 211 is fixedly connected inside the movable groove 210. The other end of the linkage plate 209 is rotatably connected to the pin 211. The clamping plate 101 is fixedly connected to the rotating shaft 212. The two ends of the rotating shaft 212 are rotatably connected to the side plates 204.

[0023] Specifically, when the battery rack is placed on the support plate 103, the cylinder 203 pushes the main shaft 208, and then the two ends of the main shaft 208 slide inside the slide groove 207. The movement of the main shaft 208 pushes the pin 211 on the clamping plate 101 to move through the linkage plate 209, so that the rotating shaft 212 on the clamping plate 101 can rotate on the side plate 204. The rotation of the clamping plate 101 facilitates the locking of the side of the battery rack. Similarly, when the battery rack is released, the cylinder 203 retracts, and then the main shaft 208 pulls the clamping plate 101 back into the side plate 204 through the linkage plate 209, which facilitates the release of the battery rack and the battery replacement work.

[0024] In one embodiment of this invention, the buffer assembly 300 includes a base 301, a guide groove 302, a rod 303, and a sleeve block 304. A pair of bases 301 are provided, mounted on both sides of the top surface of the base plate 102. Guide grooves 302 are provided on both sides of the bases 301. The two ends of the rod 303 are fixedly connected to the bases 301. Sleeve blocks 304 are slidably connected to the rod 303. Limiting blocks 305 are fixedly connected to both sides of the sleeve blocks 304, and the limiting blocks 305 are slidably connected within the guide grooves 302. A collar 306 is fixedly connected to the rod 303. A first spring 307 is sleeved on the rod 303. The two ends of the first spring 307 are fixedly connected to one side of the sleeve block 304 and one side of the collar 306, respectively. A mating seat 308 is fixedly connected to the top surface of the sleeve block 304. A pulley 309 is rotatably connected to the mating seat 308. 9 is rolled onto the wedge block 310, which is fixedly connected to the bottom surface of the support plate 103. A slide rail 311 is fixedly connected to the surface of the base 301. A pair of sliders 312 are slidably connected to the slide rail 311. A sleeve 313 is fixedly connected to the pair of sliders 312. The sleeve 313 is slidably connected to the slide rod 314. A shaft seat 315 is fixedly connected to the middle of the slide rod 314. The shaft seat 315 is fixedly installed on the surface of the slide rail 311. Snap rings 316 are fixedly connected to both ends of the slide rod 314. A second spring 317 is sleeved on the slide rod 314. The two ends of the second spring 317 are fixedly connected to the sleeve 313 and the snap ring 316, respectively. A shaft pin 318 is fixedly connected to the surface of the slider 312. An arm plate 319 is rotatably connected to the shaft pin 318. The other end of the arm plate 319 is rotatably connected to the hinge seat 320. The hinge seat 320 is fixedly installed on the bottom surface of the support plate 103.

[0025] Specifically, when the battery rack is placed on the support plate 103, its own weight causes the support plate 103 to move downwards. This movement of the support plate 103 is facilitated by the inclined surface of the wedge block 310 pressing against the pulley 309, allowing the sleeve block 304 to slide on the rod 303. A first spring 307 is sleeved on the rod 303. The sliding of the sleeve block 304 compresses the first spring 307, buffering the impact force on the support plate 103 and preventing damage to the entire battery rack. As the support plate 103 moves downward, the arm plate 319 on the hinge seat 320 pushes the shaft pin 318. The shaft pin 318 is fixedly connected to the slider 312. The slider 312 slides on the slide rail 311 by the push of the shaft pin 318. When the slider 312 slides, the sleeve 313 slides on the slide rod 314 and then pulls the second spring 317 on the slide rod 314, which helps to buffer the impact force on the support plate 103 and effectively protect the battery rack as a whole.

[0026] Working principle of the invention: When the battery rack of the lightweight battery rack of this new energy heavy truck is working, the battery rack is placed on the support plate 103. The limiting post 104 on the top surface of the support plate 103 is inserted into the reserved hole of the battery rack to realize the pre-positioning of the battery rack. The weight of the battery rack presses down on the support plate 103, and the buffer component 300 absorbs the impact of the drop load simultaneously.

[0027] The support plate 103 moves downward, causing the wedge block 310 on the bottom surface to press down the pulley 309. The pulley 309 pushes the sleeve block 304 to slide along the rod 303. The sleeve block 304 compresses the first spring 307. The limiting block 305 slides along the guide groove 302 of the base 301 to achieve guidance. At the same time, the support plate 103 drives the hinge seat 320 to move downward. The hinge seat 320 pulls the arm plate 319. The arm plate 319 pushes the shaft pin 318, causing the slider 312 to slide along the slide rail 311. The slider 312 drives the sleeve 313 to slide along the slide rod 314 and stretch the second spring 317. The elastic deformation of the first spring 307 and the second spring 317 together buffer the impact force generated by the lowering of the battery rack and protect the battery rack.

[0028] After the battery rack is placed and cushioned, the cylinder 203 of the linkage assembly 200 extends, and the telescopic end of the cylinder 203 pushes the main shaft 208. The two ends of the main shaft 208 slide along the slide groove 207 of the side plate 204. The main shaft 208 drives a pair of linkage plates 209 to move. The linkage plates 209 pull the pin 211. The pin 211 is located in the movable groove 210 of the clamping plate 101, which drives the clamping plate 101 to rotate around the pivot 212. The two ends of the pivot 212 are rotated and assembled on the side plate 204, so that the clamping plate 101 clamps the edge of the battery rack, completing the corner locking of the battery rack and preventing the battery rack from shifting during the battery swapping process.

[0029] When the battery rack needs to be released, the cylinder 203 retracts, pulling the main shaft 208 to slide in the opposite direction along the slide groove 207. The main shaft 208 pulls the pin 211 in the opposite direction through the linkage plate 209, driving the clamping plate 101 to rotate around the rotating shaft 212 and retract, releasing the lock on the battery rack. During the process of lifting the battery rack, the load above the bearing plate 103 disappears, the first spring 307 and the second spring 317 rebound, driving the bearing plate 103 to reset, completing one battery swapping lock-unlock cycle.

[0030] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery swapping base locking structure for a lightweight battery rack in a new energy heavy-duty truck, characterized in that, include: The structural body (100) is provided with a clamping plate (101), which is installed on the structural body (100) through a linkage assembly (200). The clamping plate (101) is used to lock the edge of the battery rack. The structural body (100) has a base plate (102) installed on one side of the clamping plate (101). The base plate (102) has a bearing plate (103) installed on it through a buffer assembly (300). A pair of limiting posts (104) are fixedly connected to one side of the top surface of the bearing plate (103).

2. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy-duty truck according to claim 1, characterized in that: The linkage component (200) includes a fixing frame (201), a through hole (202), a cylinder (203), a side plate (204), a top plate (205), and a through groove (206); The fixing frame (201) is installed on the structural body (100), and a through hole (202) is provided in the middle of the fixing frame (201). A cylinder (203) is installed at the bottom of the fixing frame (201). The telescopic end of the cylinder (203) extends to the top of the fixing frame (201) through the through hole (202). A pair of side plates (204) are provided. The pair of side plates (204) are installed on the top of the fixing frame (201). A top plate (205) is installed at the top of the pair of side plates (204). A through groove (206) is provided on the top plate (205).

3. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy truck according to claim 2, characterized in that: A pair of side plates (204) are provided with sliding grooves (207), and a main shaft (208) is slidably connected inside the sliding grooves (207). The telescopic end of the cylinder (203) is rotatably connected to the middle of the main shaft (208). A pair of linkage plates (209) are rotatably connected to the main shaft (208). A movable groove (210) is provided on the clamping plate (101), and a pin (211) is fixedly connected inside the movable groove (210). The other end of the linkage plate (209) is rotatably connected to the pin (211). The clamping plate (101) is fixedly connected to the rotating shaft (212), and both ends of the rotating shaft (212) are rotatably connected to the side plates (204).

4. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy truck according to claim 1, characterized in that: The buffer assembly (300) includes a base (301), a guide groove (302), a rod (303), and a sleeve (304); The base (301) is provided in pairs, and the pair of bases (301) are installed on both sides of the top surface of the base plate (102). Guide grooves (302) are provided on both sides of the base (301). The two ends of the rod (303) are fixedly connected to the base (301). A sleeve block (304) is slidably connected to the rod (303). Limiting blocks (305) are fixedly connected to both sides of the sleeve block (304). The limiting blocks (305) are slidably connected in the guide groove (302).

5. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy truck according to claim 4, characterized in that: A collar (306) is fixedly connected to the rod (303), and a first spring (307) is sleeved on the rod (303). The two ends of the first spring (307) are fixedly connected to one side of the sleeve block (304) and one side of the collar (306), respectively. A docking seat (308) is fixedly connected to the top surface of the sleeve block (304), and a pulley (309) is rotatably connected to the docking seat (308). The pulley (309) is rolled on the wedge block (310), and the wedge block (310) is fixedly connected to the bottom surface of the bearing plate (103).

6. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy-duty truck according to claim 5, characterized in that: A slide rail (311) is fixedly connected to the surface of the base (301). A pair of sliders (312) are slidably connected to the slide rail (311). A sleeve (313) is fixedly connected to the pair of sliders (312). The sleeve (313) is slidably connected to the slide rod (314). A shaft seat (315) is fixedly connected to the middle of the slide rod (314). The shaft seat (315) is fixedly installed on the surface of the slide rail (311).

7. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy-duty truck according to claim 6, characterized in that: The slide rod (314) is fixedly connected to both ends with retaining rings (316), and a second spring (317) is sleeved on the slide rod (314). The two ends of the second spring (317) are fixedly connected to the sleeve (313) and the retaining ring (316) respectively.

8. The battery swapping base locking structure of a lightweight battery rack for a new energy heavy truck according to claim 7, characterized in that: A pin (318) is fixedly connected to the surface of the slider (312), and an arm plate (319) is rotatably connected to the pin (318). The other end of the arm plate (319) is rotatably connected to the hinge seat (320), and the hinge seat (320) is fixedly installed on the bottom surface of the bearing plate (103).

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