Battery transfer device with buffer protection function

Abstract

The present application relates to battery transport technical field, especially to a kind of battery transport device with buffering protection function, including bearing frame and bearing disc etc.;Several bearing discs are arranged on bearing frame in rectangular distribution.This application is extruded downwards by elastic member two rebound, so that card block and ball two instantaneously, make card slot and ball one contact friction, limit the normal rolling of ball one, make ball one carry out damping rolling in bearing disc, when elastic member one is compressed and buffered, the damping rolling of ball one can effectively consume the energy accumulated in its compression process, so as to reduce the instantaneous impact force suffered by battery pack;When elastic member one is reset, damping effect can inhibit its rapid reset and free oscillation, avoid battery pack to produce multiple shaking after inertia release, while continuously providing buffer, reduce the secondary impact risk caused by spring free oscillation, so as to protect the internal structure of battery pack in the process of transport, improve the stability and security of overall operation.

Description

Technical Field

[0001] This invention relates to the field of battery transfer technology, and in particular to a battery transfer device with a buffer protection function. Background Technology

[0002] With the rapid development of the new energy industry, forklifts and other equipment are often used for short-distance transfers in the production, storage and transportation of battery packs. However, the passageways in factories or warehouses are usually narrow and there are blind spots, personnel and vehicles passing through, etc. This makes the transfer racks carrying battery packs very easy to scratch or collide with shelves, walls and other objects.

[0003] In existing technologies, a common buffering solution is to add elastic elements such as springs to the load-bearing structure to absorb impact energy. However, this solution has obvious drawbacks: when the spring is compressed to its limit by an impact, its stored elastic potential energy will be released, causing the spring to rebound and drive the battery pack to oscillate violently. This repeated oscillation will be transmitted to the inside of the battery pack, potentially damaging its delicate electrode structure. To solve the oscillation problem, existing technologies have introduced a method of mechanically locking the spring after compression. However, this leads to a new problem: once the spring is locked, it will completely lose its buffering capacity during the entire subsequent transportation process. If another collision occurs, the battery pack will be subjected to direct rigid impact. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a battery transfer device with buffer protection function.

[0005] The technical implementation of this invention is as follows: A battery transfer device with buffer protection function includes a support frame; it also includes a support plate, an elastic element one, a movable plate, a connecting block, a ball bearing one, a fixing plate, a locking block, a ball bearing two, and an elastic element two; the support frame is provided with a plurality of support plates arranged in a rectangular pattern; a movable plate for carrying a battery pack is slidably connected to all the support plates; a plurality of elastic elements one are provided between each support plate and the movable plate; a plurality of adjustment slots are provided on the movable plate; a plurality of fixing plates located in the adjustment slots and used to fix the battery pack are slidably connected to the movable plate; the movable plate is provided with a number of connecting blocks equal to the number of support plates; each connecting block moves within a corresponding support plate; each connecting block has... Each connecting block is rotatably connected to a ball bearing 1; each connecting block has a movable groove; each connecting block is slidably connected to a retaining block located within the movable groove and used to restrict the ball bearing 1; each retaining block has a retaining groove located above the ball bearing 1; each retaining block and the inner wall of the movable groove are jointly provided with an elastic element 2; the elastic force of the elastic element 2 is less than the elastic force of the elastic element 1; each retaining block is rotatably connected to two symmetrically distributed ball bearing 2s; each bearing plate has two symmetrically distributed protrusions; each ball bearing 2 is located at the center of the corresponding protrusion; the thickness of each protrusion is greater than the distance between the retaining groove and the ball bearing 1; each protrusion is circular, and the radius of the circular protrusion is equal to half the length of the elastic element 1.

[0006] Optionally, each slot is provided with a rubber pad layer inside.

[0007] Optionally, it also includes bearing one and bearing two; each connecting block is fixedly connected to bearing one which contacts the upper part of ball one and is used to prevent ball one from jamming; each locking block is fixedly connected to two bearing two which are symmetrically distributed and contact the upper part of ball two to prevent ball two from jamming.

[0008] Optionally, each raised edge is set to be angled.

[0009] Optionally, it also includes rubber films; several rubber films for protecting the battery pack are fixed to each mounting plate.

[0010] Optionally, it also includes airbags and air supply pipes; each fixed plate has several interconnected air slots; each rubber membrane seals one air slot; each bearing plate has an airbag fixed to each side facing outward from the movable plate; two airbags located on the same axis are connected to the air slots on the same fixed plate through air supply pipes.

[0011] Optionally, a rubber pad layer is provided on the upper side of the movable plate.

[0012] Compared with the prior art, the present invention has the following advantages: the height difference between the second ball and the protrusion causes the compressed elastic element two to rebound, instantly squeezing the locking block and the second ball downward. The downward pressure of the second elastic element causes the locking groove to contact and rub against the first ball, restricting the normal rolling of the first ball. This allows the first ball to perform damped rolling on the bearing plate. When the first elastic element is compressed and buffered, the damped rolling of the first ball can effectively consume the energy accumulated during the compression process, thereby reducing the instantaneous impact force on the battery pack. When the first elastic element rebounds and resets, the damping effect can suppress its rapid reset and free oscillation, avoiding multiple shaking of the battery pack after inertial release. While continuously providing buffering, it reduces the risk of secondary impact caused by the free oscillation of the spring, thereby protecting the internal structure of the battery pack during transportation and improving the overall stability and safety of operation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the battery transfer device with buffer protection function of the present invention; Figure 2 This is a three-dimensional structural diagram of the combined support frame, movable plate, connecting block, fixing plate and rubber membrane of the present invention; Figure 3 Exploded views of the support frame, support plate, elastic element 1, movable plate, connecting block, fixed plate, airbag and air pipe of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the combination of the movable plate, connecting block, ball bearing 1, fixed plate, locking block and ball bearing 2 of the present invention. Figure 5 This is a three-dimensional structural diagram of the combination of elastic element 1, movable plate, connecting block, fixed plate, locking block, elastic element 2, airbag and air delivery pipe of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the combination of the movable plate, connecting block, ball bearing 1, locking block, ball bearing 2, elastic element 2, bearing 1 and bearing 2 of the present invention. Figure 7 This is a three-dimensional structural diagram of the combination of the bearing plate, elastic element 1, connecting block, fixing plate, rubber membrane, airbag and air supply pipe of the present invention.

[0014] The components in the attached diagram are labeled as follows: 1-Bearing frame, 2-Bearing plate, 2001-Protrusion, 3-Elastic component one, 4-Modible plate, 4001-Adjusting groove, 5-Connecting block, 5001-Modible groove, 6-Ball bearing one, 7-Fixed plate, 7001-Air groove, 8-Clamping block, 8001-Clamping groove, 9-Ball bearing two, 10-Elastic component two, 101-Bearing one, 102-Bearing two, 201-Rubber diaphragm, 301-Airbag, 302-Air pipe. Detailed Implementation

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0016] Example 1: As Figures 1-7 As shown, a battery transfer device with buffer protection function includes a support frame 1; It also includes a bearing plate 2, an elastic element 3, a movable plate 4, a connecting block 5, a ball bearing 6, a fixed plate 7, a locking block 8, a second ball bearing 9, and an elastic element 10; the bearing frame 1 is provided with several bearing plates 2 arranged in a rectangular pattern; a movable plate 4 is slidably connected to all bearing plates 2; several elastic elements 3, which are springs, are provided between each bearing plate 2 and the movable plate 4; several adjusting grooves 4001 are provided on the movable plate 4; several fixed plates 7 located in the adjusting grooves 4001 are slidably connected to the movable plate 4; the movable plate 4 is provided with a number of connecting blocks 5 equal to the number of bearing plates 2; each connecting block 5 moves in the corresponding bearing plate 2; a ball bearing 6 is rotatably connected to each connecting block 5; each connecting block 5 is provided with an adjusting groove 5001; each Each connecting block 5 is slidably connected to a locking block 8 located within a movable groove 5001; each locking block 8 is provided with a locking groove 8001 located above the first ball 6; each locking block 8 and the inner wall of the movable groove 5001 are jointly provided with an elastic element 2 10, which is a spring; the elastic force of the elastic element 2 10 is less than the elastic force of the first elastic element 3; each locking block 8 is rotatably connected to two symmetrically distributed second balls 2 9; each bearing plate 2 is provided with two symmetrically distributed protrusions 2001; each second ball 2 9 is located at the center of the corresponding protrusion 2001; the thickness of each protrusion 2001 is greater than the distance between the locking groove 8001 and the first ball 6; each protrusion 2001 is circular, and the radius of the circular protrusion 2001 is equal to half the length of the first elastic element 3.

[0017] Each slot 8001 is equipped with a rubber anti-slip pad to increase the friction with the ball bearing 6.

[0018] It also includes bearing 101 and bearing 102; each connecting block 5 is fixedly connected to a bearing 101 that contacts the upper part of ball 6; each locking block 8 is fixedly connected to two bearings 102 that are symmetrically distributed and contact the upper part of ball 9.

[0019] Furthermore, the edges of each protrusion 2001 are set to be inclined to facilitate the return of the ball bearing 29 to the protrusion 2001.

[0020] It also includes a rubber membrane 201; several rubber membranes 201 are fixedly attached to each fixing plate 7.

[0021] It also includes an airbag 301 and an air supply pipe 302; each fixed plate 7 has several interconnected air slots 7001; each rubber membrane 201 seals an air slot 7001; each bearing plate 2 has an airbag 301 fixedly attached to each side facing the outside of the movable plate 4; two airbags 301 located on the same axis are connected to the air slots 7001 on the same fixed plate 7 through the air supply pipe 302.

[0022] A rubber pad is provided on the upper side of the movable plate 4 to prevent the battery pack from sliding on the movable plate 4 and to enhance the protection of the battery pack.

[0023] Before transferring large battery packs, the battery packs are centered on the movable plate 4 using external hoisting equipment. Then, the fixed plates 7 are pushed to slide along the adjusting groove 4001 until the four fixed plates 7 are tightly attached to the four side walls of the battery pack. The fixed plates 7 are then locked and fixed with bolts, thus limiting the battery pack to the movable plate 4. During the loading, unloading and transfer of battery packs by the forklift driver, due to the complex and changeable road conditions, the driver needs to perform turning or starting and stopping operations, which makes the battery pack prone to displacement or shaking under inertia. At this time, the force of the battery pack shaking is applied to the movable plate 4 through the fixed plates 7. Under the action of the battery pack and its own inertia, the movable plate 4 moves on the bearing plate 2 through the ball bearings 6 on the connecting block 5. The elastic element 3 set between the movable plate 4 and the bearing plate 2 effectively absorbs and dissipates the inertial impact caused by the vehicle turning or starting and stopping, thereby avoiding damage to the battery pack due to rigid collision and ensuring the smoothness and safety of the transfer process.

[0024] Considering that aisles in factories or warehouses are often relatively narrow, and forklift drivers have blind spots when reversing, as well as interference from pedestrians or other vehicles, drivers' inaccurate judgment of distances can easily cause the support frame 1 to scrape against or even violently collide with shelves, columns, or walls, resulting in impact to the battery pack. Although the aforementioned use of elastic element 3 can absorb the impact, after being compressed to its limit by the impact, elastic element 3 will generate a rebound force. This causes the battery to oscillate multiple times during the recovery process of elastic element 3 after the first impact. Such repeated shaking can easily damage the delicate electrode structure inside the battery pack and may affect its overall stability and safety. However, existing methods for addressing the multiple oscillations caused by spring reset typically involve locking the compressed spring after it has been compressed to its maximum extent to resolve the oscillation problem. However, once locked, the spring loses its buffering capacity and, if subjected to further impact during subsequent transport, will no longer provide effective cushioning. Therefore, initially, the second ball bearing 9 is located at the center of the protrusion 2001, causing the locking block 8 to compress the second elastic element 10 within the movable groove 5001. When a collision occurs during battery pack transport, the movable plate 4, under the influence of the battery pack and its own inertia, moves on the bearing plate 2 via the first ball bearing 6 on the connecting block 5. At this time, the connecting block 5, through the locking block 8, drives the second ball bearing 9 towards the impact point on the protrusion 2001. When the ball 29 moves and disengages from the protrusion 2001, the elastic element 3 is compressed by half. The height difference between the ball 29 and the protrusion 2001 causes the compressed elastic element 20 to rebound, pushing the block 8 and the ball 29 downwards instantaneously. The downward pressure of the elastic element 20 causes the slot 8001 to contact and rub against the ball 6, restricting the normal rolling of the ball 6. This allows the ball 6 to perform damped rolling on the bearing plate 2. When the elastic element 3 is compressed and buffered, the damped rolling of the ball 6 effectively dissipates the energy accumulated during compression, thus reducing the instantaneous impact on the battery pack. When the elastic element 3 rebounds and resets, the damping effect suppresses its rapid reset and free oscillation, preventing... After the battery pack is released due to inertia, it will shake multiple times. While continuously providing cushioning, it reduces the risk of secondary impact caused by the free oscillation of the spring, thereby protecting the internal structure of the battery pack during transportation and improving the overall stability and safety of operation. When the movable plate 4 drives the connecting block 5 and the locking block 8 to start to reset under the elastic force of the elastic element 3, the locking block 8 pushes the second ball 9 to slide along the surface of the bearing plate 2 until the second ball 9 moves back to the position above the protrusion 2001, so that the second ball 9 pushes the locking block 8 upward as a whole, thereby causing the locking groove 8001 to rise and disengage from the first ball 6. At this time, the elastic element 3 slowly rebounds to half of its initial length under the damped rolling state of the first ball 6.Subsequently, as the slot 8001 completely separates, ball bearing 6 resumes its free-rolling state, and the movable plate 4 returns to its initial position under the residual elastic force of the elastic element 3. Note that after the elastic element 3 rebounds to half its initial length, its residual rebound force has decayed. At this point, the resulting easing amplitude is small and the speed is gentle, insufficient to induce significant oscillations in the battery pack body, thus eliminating the risk of residual shaking.

[0025] When the aforementioned ball 6 rolls, the bearing 101 prevents sliding friction between the connecting block 5 and the ball 6, ensuring that the ball 6 rolls normally under the pressure of the battery pack and the movable plate 4. Similarly, each ball 9 is provided with a bearing 102 between it and the locking block 8, ensuring that the ball 9 rolls normally under the pressure of the elastic element 10.

[0026] Considering that when the support frame 1 collides and the battery pack is impacted, the battery pack tends to squeeze the fixing plate 7 in the opposite direction of the impact. This bidirectional compression can easily cause local deformation of the battery pack shell, which in turn can compress the internal cells and precision electrode structure. Therefore, a rubber membrane 201 is provided on the side of the fixing plate 7 that contacts the battery pack. When a collision occurs, the movable plate 4 drives the connecting block 5 and the ball bearing 6 to move on the support plate 2, so that the connecting block 5 near the collision position squeezes the corresponding airbag 301. The gas in the airbag 301 is then forced into the air groove 7001 of the fixing plate 7 on that side through the air supply pipe 302, which lifts and expands the rubber membrane 201, forming a buffer air cushion on the side of the fixing plate 7 that contacts the battery pack. This transforms the original concentrated impact force into a large-area uniformly distributed contact pressure, reduces the local stress peak of the battery pack shell, effectively avoids shell deformation and pressure damage to the internal cells, and enhances the protection effect of the battery pack.

[0027] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A battery transfer device with buffer protection function, characterized in that: The device includes a support frame (1); it also includes a support plate (2), an elastic element (3), a movable plate (4), a connecting block (5), a ball bearing (6), a fixing plate (7), a locking block (8), a ball bearing (9), and an elastic element (10); the support frame (1) is provided with several support plates (2) arranged in a rectangular pattern; all support plates (2) are slidably connected to a movable plate (4) for carrying the battery pack; several elastic elements (3) are provided between each support plate (2) and the movable plate (4); several adjustment slots (4001) are provided on the movable plate (4); several fixing plates (7) located in the adjustment slots (4001) and used to fix the battery pack are slidably connected on the movable plate (4); the movable plate (4) is provided with a number of connecting blocks (5) equal to the number of support plates (2); each connecting block (5) moves in the corresponding support plate (2); each connecting block (5) is rotatably connected to a ball bearing (6); each connecting block (5) is provided with a ball bearing (6). A movable groove (5001) is provided; each connecting block (5) is slidably connected to a locking block (8) located in the movable groove (5001) and used to limit the first ball (6); each locking block (8) is provided with a locking groove (8001) located above the first ball (6); each locking block (8) and the inner wall of the movable groove (5001) are provided with an elastic element two (10); the elastic force of the elastic element two (10) is less than the elastic force of the elastic element one (3); each locking block ( 8) Each bearing plate (2) is rotatably connected to two symmetrically distributed ball bearings (9); each bearing plate (2) is provided with two symmetrically distributed protrusions (2001); each ball bearing (9) is located at the center of the corresponding protrusion (2001); the thickness of each protrusion (2001) is greater than the distance between the slot (8001) and the ball bearing (6); each protrusion (2001) is circular, and the radius of the circular protrusion (2001) is equal to half the length of the elastic element (3).

2. A battery transfer device with buffer protection function according to claim 1, characterized in that: Each card slot (8001) has a rubber pad inside.

3. A battery transfer device with buffer protection function according to claim 1, characterized in that: It also includes bearing one (101) and bearing two (102); each connecting block (5) is fixed with a bearing one (101) that contacts the upper part of ball one (6) and is used to prevent ball one (6) from jamming; each locking block (8) is fixed with two bearing two (102) that are symmetrically distributed and contact the upper part of ball two (9) to prevent ball two (9) from jamming.

4. A battery transfer device with buffer protection function according to claim 1, characterized in that: Each protrusion (2001) has a slanted edge.

5. A battery transfer device with buffer protection function according to claim 1, characterized in that: It also includes a rubber membrane (201); several rubber membranes (201) for protecting the battery pack are fixed on each fixing plate (7).

6. A battery transfer device with buffer protection function according to claim 5, characterized in that: It also includes an airbag (301) and an air supply pipe (302); each fixed plate (7) has several interconnected air slots (7001); each rubber membrane (201) seals an air slot (7001); each bearing plate (2) has an airbag (301) fixedly attached to each side facing the outside of the movable plate (4); two airbags (301) located on the same axis are connected to the air slots (7001) on the same fixed plate (7) through the air supply pipe (302).

7. A battery transfer device with buffer protection function according to claim 6, characterized in that: A rubber anti-slip pad is provided on the upper side of the movable board (4).

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