New energy storage battery box protection frame structure

Abstract

The invention relates to the related technical field of battery box frame structures, in particular to a new energy storage battery box protection frame structure which comprises a bearing frame and an upper carrying plate, and the bearing frame and the upper carrying plate are detachably installed. A shock absorption mechanism for buffering the battery box is arranged in the placing space, the shock absorption mechanism comprises a plurality of elastic buffering pieces arranged in the placing space, and the two sides of the battery box are connected with the elastic buffering pieces in an abutting mode respectively; one end of each elastic buffer piece is provided with a containing space, the moving assemblies are installed in the containing space, and the other end, away from the battery box, of each elastic buffer piece abuts against the corresponding moving assembly, so that when the battery box is impacted to extrude the elastic buffer pieces, the elastic buffer pieces located on one side absorb and convert impact energy, and meanwhile, the elastic buffer pieces on the other side can absorb and convert the impact energy; and the deformation quantity of the elastic buffer piece is changed, so that the impact force of different magnitudes on the battery box is effectively resisted.

Description

Technical Field

[0001] The present invention relates to the technical field related to battery box frame structures, and in particular to a new energy energy storage battery box protective frame structure. Background Art

[0002] The protective frame structure of an automotive new energy battery box is a key component in the power battery system that supports, protects, and secures the battery modules. Its design and function are crucial to the safety, reliability, and performance of new energy vehicles. The battery box is often referred to as the "framework of the battery pack."

[0003] As a critical safety component, the battery box of a new energy vehicle must meet relevant collision safety and protection performance requirements. The addition of a shock-absorbing component not only improves the battery box's impact resistance but also enhances the stability of its overall structure. During driving, the battery box is subject to vibrations and shocks from external factors such as uneven roads, collisions, and sudden acceleration or braking. These vibrations and shocks can cause the battery module to shift or even damage the battery. Therefore, a shock-absorbing component is incorporated into the frame structure to effectively buffer these external forces, reducing the impact on the battery module and thus protecting the safety and stability of the battery.

[0004] Within the frame structure, usually located at the bottom or key positions of the battery box, shock-absorbing plates, dampers, springs and other components are set to absorb vibration energy, which can effectively buffer the impact of external vibrations on the battery box. However, the shock-absorbing springs that adjust the deformation are usually designed with fixed stiffness and cannot be adjusted according to different impact conditions or road conditions. As a result, in some cases, the vibration may not be effectively buffered, causing the battery box to deform, leak, heat up, rupture or short-circuit when impacted. Summary of the Invention

[0005] The purpose of the present invention is to provide a new energy storage battery box protective frame structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A new energy storage battery box protective frame structure, the frame structure includes a carrying frame and an upper loading plate, and the carrying frame and the upper loading plate are detachably installed: A placement space for the battery box is formed in the carrier frame, and a shock absorbing mechanism for cushioning the battery box is provided in the placement space. The shock absorbing mechanism includes a plurality of elastic buffer members provided in the placement space, and two sides of the battery box are respectively in contact with the elastic buffer members; It also includes multiple movable components installed in the placement space, and the other end of the elastic buffer away from the battery box is in contact with the movable component. When the elastic buffer on one side is squeezed by the battery box, it can drive the movable component on the same side to squeeze the elastic buffer, so as to buffer the battery box while changing the deformation of the elastic buffer on both sides.

[0007] The protective frame structure of the new energy storage battery box as described above: the elastic buffer member includes a plug-in sleeve installed in the bearing frame, an abutment plate is slidably provided in one end of the plug-in sleeve, and the end of the abutment plate extending from the plug-in sleeve can abut against the battery box; It also includes at least one group of springs arranged in the plug-in sleeve, one end of the spring abuts against the abutment plate, and the other end abuts against the moving component.

[0008] The protective frame structure of the new energy storage battery box as described above: the movable component includes an extrusion plate that is slidably arranged in the plug-in sleeve and can abut against the spring, and a movable shaft is rotatably installed on one end of the extrusion plate away from the spring, and the rotation of the movable shaft is controlled by a driving component arranged in the supporting frame.

[0009] As described above, the protective frame structure of the new energy storage battery box: at least one set of sliding grooves is formed on the inner wall of the plug-in sleeve, and a slider that slides with the sliding grooves is provided on the extrusion plate.

[0010] The protective frame structure of the new energy storage battery box as described above: the driving component includes a connecting shaft rotatably installed in the bearing frame, and both ends of the connecting shaft are respectively provided with connecting hoop fixed to the abutment plate, and the two ends of the connecting shaft are respectively connected to the movable shaft through a transmission component.

[0011] As described above, the protective frame structure of the new energy storage battery box: a first thread groove is provided at each end of the connecting shaft, and the thread directions of the two first thread grooves are the same, and a first ball adapted to the first thread groove is movably provided in the connecting hoop.

[0012] The protective frame structure of the new energy storage battery box as described above: the transmission assembly includes a connecting sleeve rotatably mounted in the bearing frame and axially arranged along the movable shaft, the movable shaft passes through the connecting sleeve and is slidably connected to the connecting sleeve; It also includes a transmission shaft rotatably installed in the bearing frame, one end of the transmission shaft is connected to the connecting sleeve through a first bevel gear set, and the other end is connected to the connecting shaft through a second bevel gear set.

[0013] As described above, in the protective frame structure of the new energy storage battery box, at least one group of bar blocks is provided in the connecting sleeve, and a bar groove is formed on the movable shaft to slide with the bar blocks.

[0014] The protective frame structure of the new energy storage battery box as described above: the movement of the movable axis is controlled by a pushing member arranged in the bearing frame.

[0015] The protective frame structure of the new energy storage battery box as described above: the pushing member includes a sleeve installed in the supporting frame and axially arranged along the movable shaft, a second thread groove is formed in the sleeve, and the movable shaft is inserted into one end of the sleeve and a second ball adapted to the second thread groove is movably arranged.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When a new energy vehicle accelerates or stops suddenly during driving, the battery box impacts multiple elastic buffers on one side under the action of inertia. The multiple elastic buffers on the same side are squeezed at the same time and produce relative movement, thereby increasing the elastic potential energy in the elastic buffer and driving the moving component to move toward the elastic buffer, squeezing the elastic buffer, causing the deformation of the elastic buffer to change. At this time, the elastic buffer converts the impact energy of the battery box into elastic potential energy through deformation. While absorbing the impact energy, the elastic buffer can also effectively reduce the transmission of vibration. Through the compression and rebound process, the elastic buffer can convert part of the kinetic energy into heat energy and dissipate it, better absorbing and buffering the impact from sudden acceleration and deceleration, while effectively filtering out fine impacts, thereby reducing the impact of vibration on the battery box and its internal components, and ensuring its safety and reliability at all times; When the elastic buffer on one side absorbs and transforms the impact of the battery box, the elastic potential energy of the elastic buffer on the other side changes synchronously, and its elastic potential energy increases, ensuring that the overall energy of the battery box is conserved when it is impacted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the protective frame structure of the new energy storage battery box.

[0018] Figure 2 This is a structural diagram of the separation of the load-bearing frame and the upper loading plate in the protective frame structure of the new energy storage battery box.

[0019] Figure 3 This is a schematic diagram of the structure inside the load-bearing frame in the protective frame structure of the new energy storage battery box.

[0020] Figure 4 This is a structural diagram of the load-bearing frame and shock-absorbing mechanism in the protective frame structure of the new energy storage battery box.

[0021] Figure 5 This is a structural diagram of the elastic buffer and drive components in the protective frame structure of the new energy storage battery box.

[0022] Figure 6 This is a structural diagram of the elastic buffer part in the protective frame structure of the new energy storage battery box.

[0023] Figure 7 This is a cross-sectional diagram of the elastic buffer component in the protective frame structure of the new energy storage battery box.

[0024] Figure 8 This is a structural diagram of the elastic buffer and movable components in the protective frame structure of the new energy storage battery box.

[0025] Figure 9 This is a structural diagram of the movable shaft and sleeve in the protective frame structure of the new energy storage battery box.

[0026] Figure 10 This is a structural diagram of the connecting hoop and connecting shaft in the protective frame structure of the new energy storage battery box.

[0027] In the figure: 1. Carrying frame; 2. Upper loading plate; 3. Plug-in sleeve; 301. Slide groove; 4. Abutment plate; 5. Connecting shaft; 501. First threaded groove; 6. Connecting hoop; 601. First ball bearing; 7. Spring; 8. Extrusion plate; 801. Slider; 9. Sleeve; 901. Second threaded groove; 10. Movable shaft; 1001. Strip groove; 1002. Second ball bearing; 11. Connecting sleeve; 1101. Strip block; 12. First bevel gear set; 13. Transmission shaft; 14. Second bevel gear set. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0031] See also Figures 1 to 10In an embodiment of the present invention, a new energy storage battery box protective frame structure is provided. The frame structure includes a carrying frame 1 and an upper loading plate 2, and the carrying frame 1 and the upper loading plate 2 are detachably mounted. In one embodiment, the carrying frame 1 and the upper loading plate 2 are fixed by bolt connection. The specific locking method can adopt the existing technology, and the present invention will not provide any redundant explanation: A placement space for the battery box is formed in the carrier frame 1. A shock absorbing mechanism for cushioning the battery box is provided in the placement space. The shock absorbing mechanism includes a plurality of elastic buffer members provided in the placement space. Both sides of the battery box abut against the elastic buffer members respectively. It also includes multiple movable components installed in the placement space, and the other end of the elastic buffer away from the battery box is in contact with the movable component. When the elastic buffer on one side is squeezed by the battery box, it can drive the movable component on the same side to squeeze the elastic buffer, so as to buffer the battery box while changing the deformation of the elastic buffer on both sides.

[0032] When a new energy vehicle is driving, during the acceleration process, the inertia force of the vehicle is mainly manifested as a forward thrust. This thrust will cause a certain impact and vibration on the battery box, which may cause the battery module to shake, thereby causing a certain stress and deformation to the structure of the battery box. When suddenly stopping or emergency braking, the vehicle will be subjected to a backward inertia force. This inertia force is usually proportional to the acceleration of the vehicle. This strong inertia force will impose a large longitudinal load on the battery box, which may cause the battery box to deform or even rupture. Therefore, when the battery box is installed, a shock-absorbing mechanism needs to be provided in its frame structure to protect the battery box, so as to effectively protect the battery from mechanical shock and vibration, thereby improving the safety and service life of the battery.

[0033] In contrast, the market now uses fixed seats and shock-absorbing springs to provide shock-absorbing protection for battery boxes. These shock-absorbing springs can effectively absorb impact forces and enhance the shock absorption effect of the overall protective frame. However, the shock-absorbing springs that adjust the deformation are usually designed with fixed stiffness and cannot be adjusted according to different impact conditions or road conditions. As a result, it may not provide the best shock absorption effect when facing impacts of different intensities. When the impact force is small, the shock-absorbing spring may not be able to fully absorb the energy. When the impact force is large, the shock-absorbing spring may not be able to effectively buffer due to insufficient deformation, thereby affecting the safety and service life of the battery box. Moreover, this makes it perform worse than the shock absorption system with adjustable deformation when dealing with complex road conditions or different types of impacts (such as vertical impact, horizontal impact, etc.).

[0034] In this embodiment, when the new energy vehicle accelerates or stops suddenly during driving, under the action of inertia, the battery box impacts multiple elastic buffers on one side, and the multiple elastic buffers on the same side are squeezed at the same time and produce relative movement, thereby increasing the elastic potential energy in the elastic buffer and driving the moving component to move toward the elastic buffer, squeezing the elastic buffer, causing the deformation of the elastic buffer to change. At this time, the elastic buffer converts the impact energy of the battery box into elastic potential energy through deformation, and the elastic buffer can effectively reduce the transmission of vibration while absorbing the impact energy. Through the compression and rebound process, the elastic buffer can convert part of the kinetic energy into heat energy and dissipate it, thereby reducing the impact of vibration on the battery box and its internal components.

[0035] It should be noted that when the impact force is small, the elastic buffer may only partially compress; when the impact force is large, the elastic buffer will fully compress to absorb more energy. This flexibility enables the shock absorption mechanism to better cope with complex working environments.

[0036] It is important to note that when the battery case is impacted and squeezes the elastic buffer, the impact force causes the elastic buffer to compress and deform. At this point, the elastic potential energy of the elastic buffer increases because the work done by the external force to overcome the elastic force of the elastic buffer is stored as elastic potential energy. However, this deformation is not isolated. The elastic buffer on the other side will also undergo corresponding deformation due to the impact force. For the change in the elastic potential energy of the elastic buffer on the other side, the overall energy conservation of the system needs to be considered. When the battery case applies pressure to the elastic buffer on one side to compress it, the elastic buffer on the other side will typically elongate or be stretched, thereby storing more elastic potential energy. Therefore, the elastic potential energy of the elastic buffer on the other side will also increase, rather than decrease. If the other side of the elastic buffer is not adequately supported or buffered, its deformation may decrease, resulting in a decrease in its elastic potential energy.

[0037] As a further solution of the present invention, please refer to Figure 6 and Figure 7 The elastic buffer comprises a plug-in sleeve 3 mounted in the carrier frame 1, an abutment plate 4 is slidably provided in one end of the plug-in sleeve 3, and an end of the abutment plate 4 extending out of the plug-in sleeve 3 can abut against the battery box; It also includes at least one group of springs 7 arranged in the plug-in sleeve 3, one end of the spring 7 abuts against the abutting plate 4, and the other end abuts against the moving component.

[0038] In detail, when the battery box impacts the abutment plate 4, the abutment plate 4 is squeezed and moves toward the inside of the plug-in sleeve 3. At this time, the abutment plate 4 moves relative to the plug-in sleeve 3. When the abutment plate 4 moves toward the inside of the plug-in sleeve 3, it squeezes the spring 7, causing the spring 7 to be compressed again. When the spring 7 is compressed, it can absorb the impact of the battery box, thereby buffering the movement of the battery box. When the abutment plate 4 moves relative to the plug-in sleeve 3, it can drive the spring 7 to further compress under the compression of the moving component, so that the elastic potential energy of the spring 7 is greater, so as to better absorb and buffer the impact from sudden acceleration and deceleration, and effectively filter out fine impacts.

[0039] As a further solution of the present invention, please refer to Figure 8 The moving component includes an extrusion plate 8 that is slidably arranged in the plug-in sleeve 3 and can abut against the spring 7. A movable shaft 10 is rotatably installed on the end of the extrusion plate 8 away from the spring 7. The rotation of the movable shaft 10 is controlled by a driving component arranged in the supporting frame 1.

[0040] Preferably, at least one set of sliding grooves 301 is formed on the inner wall of the plug-in sleeve 3, and a slider 801 is provided on the extrusion plate 8, which slides with the sliding groove 301. Under the restrictive action of the sliding groove 301 and the slider 801, the sliding connection between the extrusion plate 8 and the plug-in sleeve 3 is realized, and the rotation of the movable shaft 10 has no effect on the movement of the extrusion plate 8.

[0041] As a further solution of the present invention, please refer to the figure, the driving assembly includes a connecting shaft 5 rotatably installed in the supporting frame 1, and the two ends of the connecting shaft 5 are respectively provided with connecting hoop 6 fixed to the abutment plate 4, and the two ends of the connecting shaft 5 are respectively connected to the movable shaft 10 through the transmission assembly.

[0042] A first thread groove 501 is provided at both ends of the connecting shaft 5 , and the thread directions of the two first thread grooves 501 are the same. A first ball 601 adapted to the first thread groove 501 is movably provided in the connecting hoop 6 .

[0043] Specifically, when the abutment plate 4 moves relative to the plug-in sleeve 3, the connecting hoop 6 on the abutment plate 4 is driven to move synchronously. At this time, the first ball 601 on the connecting hoop 6 generates an inclined extrusion force on the first threaded groove 501, so that the connecting shaft 5 rotates with the movement of the connecting hoop 6. When the connecting shaft 5 rotates, under the action of the transmission assembly, the two movable shafts 10 can be controlled to rotate at the same time, so that the extrusion plate 8 on one side squeezes the spring 7 while the extrusion plate 8 on the other side moves away from the spring 7. The elastic potential energy of the springs 7 on both sides increases at the same time, which effectively buffers the impact force of the battery box while ensuring the overall energy conservation.

[0044] As a further solution of the present invention, please refer to Figure 7 The transmission assembly includes a connecting sleeve 11 rotatably mounted in the carrier frame 1 and axially arranged along the movable shaft 10, and the movable shaft 10 passes through the connecting sleeve 11 and is slidably connected to the connecting sleeve 11; It also includes a transmission shaft 13 rotatably mounted in the carrier frame 1 , one end of the transmission shaft 13 is connected to the connecting sleeve 11 through a first bevel gear set 12 , and the other end is connected to the connecting shaft 5 through a second bevel gear set 14 .

[0045] When the connecting shaft 5 rotates, the second bevel gear set 14 can drive the transmission shaft 13 to rotate. The transmission shaft 13 rotates and, under the action of the first bevel gear set 12, drives the connecting sleeve 11 to rotate, so as to realize the rotation requirement of the connecting sleeve 11, thereby realizing the movable shaft 10 to be able to perform linear motion along the axial direction of the connecting sleeve 11, ensuring that the movable shafts 10 on both sides can rotate at the same time and in the same direction of rotation.

[0046] Preferably, at least one group of bar blocks 1101 is provided in the connecting sleeve 11, and a bar groove 1001 is formed on the movable shaft 10, which slides with the bar block 1101. Under the restrictive action of the bar block 1101 and the bar groove 1001, the sliding connection between the movable shaft 10 and the connecting sleeve 11 is realized, and the movement of the movable shaft 10 has no effect on the rotation and position of the connecting sleeve 11.

[0047] As a further solution of the present invention, please refer to Figure 9 The movement of the movable shaft 10 is controlled by a pushing member provided in the carrying frame 1 .

[0048] The pushing member includes a sleeve 9 installed in the supporting frame 1 and axially arranged along the movable shaft 10, a second thread groove 901 is formed in the sleeve 9, and the movable shaft 10 is inserted into one end of the sleeve 9 and movably provided with a second ball 1002 adapted to the second thread groove 901.

[0049] To elaborate, when the movable shaft 10 rotates, the second ball 1002 thereon squeezes the second thread groove 901. Restricted by the fixed sleeve 9, the movable shaft 10 is subjected to a reaction force, and the second ball 1002 always moves in the second thread groove 901, so that the movable shaft 10 rotates while making a linear motion along the axial direction of the sleeve 9. At this time, the movable shaft 10 pushes the extrusion plate 8 when it moves, and the extrusion plates 8 on both sides move in the same direction, so that the spring 7 on one side is compressed and the spring 7 on the other side is stretched. Through the compression and rebound process, the spring 7 can convert part of the kinetic energy into heat energy and dissipate it, so as to better absorb and cushion the impact from sudden acceleration and deceleration, and effectively filter out fine impacts, thereby reducing the impact of vibration on the battery box and its internal components, and ensuring that it is always safe and reliable.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A new energy storage battery box protective frame structure, the frame structure comprising a bearing frame (1) and an upper loading plate (2), wherein the bearing frame (1) and the upper loading plate (2) are detachably mounted, characterized in that: A placement space for installing a battery box is formed in the carrying frame (1), and a shock absorbing mechanism for buffering the battery box is provided in the placement space. The shock absorbing mechanism comprises a plurality of elastic buffer members provided in the placement space, and both sides of the battery box are respectively in contact with the elastic buffer members; It also includes multiple movable components installed in the placement space, and the other end of the elastic buffer away from the battery box is in contact with the movable component. When the elastic buffer on one side is squeezed by the battery box, it can drive the movable component on the same side to squeeze the elastic buffer, so as to buffer the battery box while changing the deformation of the elastic buffer on both sides.

2. A new energy energy storage battery box protective frame structure according to claim 1, characterized in that: The elastic buffer comprises a plug-in sleeve (3) mounted in the bearing frame (1), an abutment plate (4) being slidably provided in one end of the plug-in sleeve (3), and an end of the abutment plate (4) extending out of the plug-in sleeve (3) being capable of abutting against the battery box; It also includes at least one group of springs (7) arranged in the plug-in sleeve (3), one end of the spring (7) abuts against the abutment plate (4), and the other end abuts against the moving component.

3. A new energy energy storage battery box protective frame structure according to claim 2, characterized in that: The moving assembly comprises an extrusion plate (8) which is slidably arranged in the plug-in sleeve (3) and can abut against the spring (7); a movable shaft (10) is rotatably mounted on one end of the extrusion plate (8) away from the spring (7); and the rotation of the movable shaft (10) is controlled by a driving assembly arranged in the bearing frame (1).

4. A new energy energy storage battery box protective frame structure according to claim 3, characterized in that: At least one set of sliding grooves (301) is formed on the inner wall of the plug-in sleeve (3), and a sliding block (801) that slidably cooperates with the sliding grooves (301) is provided on the extrusion plate (8).

5. A new energy energy storage battery box protective frame structure according to claim 3, characterized in that: The driving assembly comprises a connecting shaft (5) rotatably mounted in the bearing frame (1), and both ends of the connecting shaft (5) are respectively sleeved with connecting hoops (6) fixed to the abutment plate (4), and both ends of the connecting shaft (5) are respectively connected to the movable shaft (10) through a transmission assembly.

6. A new energy energy storage battery box protective frame structure according to claim 5, characterized in that: Both ends of the connecting shaft (5) are respectively provided with a first thread groove (501), and the thread directions of the two first thread grooves (501) are the same. A first ball (601) adapted to the first thread groove (501) is movably provided in the connecting hoop (6).

7. A new energy energy storage battery box protective frame structure according to claim 5, characterized in that: The transmission assembly comprises a connecting sleeve (11) rotatably mounted in the bearing frame (1) and axially arranged along the movable shaft (10); the movable shaft (10) passes through the connecting sleeve (11) and is slidably connected to the connecting sleeve (11); It also includes a transmission shaft (13) rotatably mounted in the carrier frame (1), one end of the transmission shaft (13) being connected to the connecting sleeve (11) via a first bevel gear set (12), and the other end being connected to the connecting shaft (5) via a second bevel gear set (14).

8. A new energy energy storage battery box protective frame structure according to claim 7, characterized in that: At least one group of strip blocks (1101) is provided in the connecting sleeve (11), and a strip groove (1001) is formed on the movable shaft (10) and is slidably engaged with the strip blocks (1101).

9. A new energy energy storage battery box protective frame structure according to claim 3, characterized in that: The movement of the movable shaft (10) is controlled by a pushing member arranged in the carrying frame (1).

10. A new energy energy storage battery box protective frame structure according to claim 9, characterized in that: The pushing member comprises a sleeve (9) installed in the supporting frame (1) and arranged axially along the movable shaft (10), a second thread groove (901) being formed in the sleeve (9), and a second ball (1002) adapted to the second thread groove (901) being movably arranged in one end of the movable shaft (10) inserted into the sleeve (9).

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