Multi-stage damping bottom support and battery system

Abstract

The invention relates to the technical field of energy storage, in particular to a multi-stage damping bottom support and a battery system. The frame assembly comprises a bottom frame body and a damping plate; the bottom frame body is connected with the damping plate; at least part of the damping plate is an elastic body; the damping assembly is connected with the side, close to the damping plate, of the bottom frame body; part of the damping assemblies are elastic bodies; the multi-stage damping bottom support comprises a first working state and a second working state; the first working state comprises that the damping plate deforms under the action force in the vertical direction; the second working state comprises the damping assembly, and the damping plate is at least subjected to acting force in the horizontal direction and meanwhile deforms. Therefore, the problem of insufficient strength of the damping plate under partial working conditions is solved.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and more specifically, to a multi-stage shock-absorbing base and battery system. Background Technology

[0002] In the field of vehicle powertrain assembly, the battery box, as a core energy storage component, needs to be fixedly installed to the vehicle body via a base structure to ensure its installation stability during vehicle operation. During vehicle operation, factors such as road surface undulations, acceleration, deceleration, and steering cause relative displacement and vibration between the battery box and the base. If this vibration is directly transmitted to the inside of the battery box, it may affect the connection reliability and electrical performance stability of the battery modules. Therefore, existing technologies typically install a damping plate between the contact surfaces of the battery box and the base, with the battery box, damping plate, and base sequentially abutting against each other. The damping plate is usually made of elastic material, absorbing vibration energy through its own deformation, reducing the transmission efficiency of vibration between the battery box and the base, thereby reducing the adverse effects of vibration on the battery box.

[0003] However, during vehicle operation, the shock absorber plate needs to withstand vibrations from different directions with significantly increased stress. Due to the structural design and material properties of existing shock absorber plates, they are sometimes unable to adapt to the vibrations and impacts during vehicle operation, resulting in insufficient strength and inability to provide stable cushioning. This leads to a significant reduction in shock absorption effect and makes it difficult to ensure the stable operation of the battery pack under complex driving conditions. Summary of the Invention

[0004] To address the issue of insufficient strength of the damping plate under certain working conditions, this invention provides a multi-stage damping base and battery system.

[0005] In a first aspect, the present invention discloses a multi-stage shock-absorbing base, the multi-stage shock-absorbing base comprising:

[0006] A frame assembly includes a base frame and a damping plate; the base frame is connected to the damping plate; at least a portion of the damping plate is configured as an elastic body.

[0007] A shock-absorbing assembly is connected to the bottom frame body on the side near the shock-absorbing plate; part of the shock-absorbing assembly is configured as an elastic body.

[0008] The multi-stage shock-absorbing base includes a first working state and a second working state; the first working state includes the shock-absorbing plate being deformed by a force applied in the vertical direction; the second working state includes the shock-absorbing assembly and the shock-absorbing plate being deformed simultaneously by at least a force applied in the horizontal direction.

[0009] In some embodiments, the damping assembly includes a damping seat, a damping ring, and an abutment unit; the damping seat is connected to the frame assembly; the damping ring is configured as an elastic body; the damping ring is connected to the damping seat; and the abutment unit is sleeved on the outer periphery of the damping ring.

[0010] The second working state also includes the abutting unit transmitting a force at least along the horizontal direction to the damping ring, causing the damping ring to deform, while the damping plate is subjected to a force at least along the horizontal direction and deforms.

[0011] In some embodiments, the abutting unit includes a first abutting arc plate and a second abutting arc plate; the first abutting arc plate is connected to one side of the damping ring body along a first direction; the other side of the damping ring body along the first direction is connected to the damping seat; the second abutting arc plate is connected to one side of the damping ring body along a second direction; the other side of the damping ring body along the second direction is connected to the damping seat; the minimum angle between the first direction and the mounting surface of the frame assembly is within a first set range; the minimum angle between the second direction and the mounting surface is within a second set range; the minimum angle between the first direction and the second direction is within a third set range.

[0012] The second working state also includes at least one of the first abutting arc plate and the second abutting arc plate transmitting a force at least along the horizontal direction to the damping ring body, causing the damping ring body to deform, while the damping plate is subjected to a force at least along the horizontal direction and deforms.

[0013] In some embodiments, a portion of the first abutting arc plate is provided to protrude in the direction away from the damping ring along the first direction.

[0014] In some embodiments, the damping ring is configured as an annular body; the wall thickness of the damping ring gradually decreases and then gradually increases along the vertical direction.

[0015] In some embodiments, the wall thickness of the damping ring along the first direction is greater than the wall thickness of the damping ring along the second direction.

[0016] In some embodiments, the multi-stage shock-absorbing base further includes a guide assembly; the guide assembly includes a guide seat, a guide hole, a shock-absorbing ring, and a guide rod; the guide seat is connected to the base frame body; the guide hole is recessed from one side of the guide seat to the other side; the shock-absorbing ring is configured as an elastic body; the outer peripheral wall of the shock-absorbing ring abuts against the inner peripheral wall of the guide seat; one end of the guide rod is connected to the inner peripheral wall of the shock-absorbing ring, and the other end extends toward the shock-absorbing plate.

[0017] In some embodiments, the multi-stage shock-absorbing base further includes a first locking assembly; the first locking assembly includes a locking seat and a locking unit; the locking seat is connected to the base frame; the locking unit includes a driving part, a locking rod, and a locking head; the outer peripheral surface of the locking rod is movably connected to the inner peripheral surface of the locking seat; the locking head is connected to the end of the locking rod away from the locking seat; the projection of the locking rod toward the locking head coincides with a portion of the locking head;

[0018] The first locking assembly includes a third working state and a fourth working state; the third working state includes the driving unit driving the locking head to move until the length direction of the locking head is parallel to the first direction; the fourth working state includes the driving unit driving the locking head to move until the length direction of the locking head is parallel to the second direction.

[0019] In some embodiments, the locking unit further includes a shock-absorbing pad; the shock-absorbing pad is configured as an elastomer; the outer peripheral surface of the shock-absorbing pad abuts against the inner peripheral surface of the locking seat; the outer peripheral surface of the locking rod is movably connected to the locking seat through the inner peripheral surface of the shock-absorbing pad.

[0020] In a second aspect, the present invention discloses a battery system, the battery system comprising any multi-stage shock-absorbing base of the first aspect, the battery system further comprising:

[0021] Battery assembly; the battery assembly includes a battery body and a connecting frame unit; the battery body is connected to the connecting frame unit;

[0022] The battery system includes a first connection state and a second connection state; the first connection state includes the connection frame unit abutting against the shock-absorbing plate of the bottom frame body, and the shock-absorbing plate deforming under the force of the connection frame.

[0023] The second combined state includes the relative displacement between the connecting frame unit and the bottom frame body at least along the horizontal direction, the abutment between the connecting frame unit and the damping plate of the bottom frame body, the abutment between the connecting frame unit and the damping assembly, and the deformation of the damping plate and the damping plate under the force of the connecting frame.

[0024] To address the issue of insufficient strength of the damping plate under certain operating conditions, this invention offers the following advantages:

[0025] By setting up a frame assembly including a base frame, an elastic damping plate, and an elastic damping component connected to the base frame near the damping plate, a multi-stage damping base with a first working state and a second working state is constructed. In the first working state, the damping plate deforms under vertical force, and in the second working state, the damping component and the damping plate deform simultaneously under horizontal force. This damps vibrations in different directions during vehicle operation, avoiding the defect of insufficient strength of a single damping plate under dynamic conditions. Ultimately, it solves the problem that the damping plate on the base is not strong enough to provide effective cushioning during vehicle operation, ensuring the damping effect and installation stability between the battery box and the base. Attached Figure Description

[0026] Figure 1 A schematic diagram of a multi-stage shock-absorbing base structure according to one embodiment is shown;

[0027] Figure 2 A schematic diagram of another embodiment of the multi-stage shock-absorbing base structure is shown;

[0028] Figure 3 It shows Figure 2 A partially enlarged schematic diagram of the multi-stage shock-absorbing base;

[0029] Figure 4 A schematic diagram of a battery system structure according to one embodiment is shown;

[0030] Figure 5 A partial schematic diagram of a multi-stage shock-absorbing base is shown in one embodiment.

[0031] Reference numerals: 10 Frame assembly; 11 Bottom frame body; 12 Damping plate; 20 Damping assembly; 21 Damping seat; 22 Damping ring body; 23 Abutting unit; 231 First abutting arc plate; 232 Second abutting arc plate; 30 First locking assembly; 31 Locking seat body; 32 Locking unit; 321 Drive part; 322 Locking rod; 323 Locking head; 324 Damping pad; 40 Guide assembly; 41 Guide seat; 42 Guide hole; 43 Damping ring; 44 Guide rod; 50 Second locking assembly; 51 Bolt; 52 Nut; 53 Damping pad; 60 Battery assembly; 61 Battery body; 62 Connecting frame unit. Detailed Implementation

[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0033] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] In the frame assembly of a multi-stage shock absorber base, the base frame is connected to the shock absorber plates, and at least some of the shock absorber plates are configured as elastic bodies. These elastic shock absorber plates are used to cushion the corresponding assembly parts of the base frame. During vehicle operation, the multi-stage shock absorber base is subjected to forces in multiple directions, including vertical and horizontal. Compared to static parking conditions, the force distribution is more complex and the force intensity fluctuates significantly. Because existing structures rely solely on elastic shock absorber plates for cushioning, their structural design and elastic body performance are only suitable for the load-bearing requirements under static conditions. They cannot cope with the complex multi-directional forces under dynamic conditions during vehicle operation, resulting in insufficient strength of the shock absorber plates during vehicle movement and making it difficult to provide effective cushioning support.

[0035] Example 1:

[0036] This embodiment discloses a multi-stage shock-absorbing base, such as Figure 1As shown, the multi-stage shock-absorbing base includes: a frame assembly 10, including a bottom frame body 11 and a shock-absorbing plate 12; the bottom frame body 11 is connected to the shock-absorbing plate 12, and the bottom frame body 11 is connected to the vehicle; at least part of the shock-absorbing plate 12 is set as an elastic body, which utilizes the deformation characteristics of the elastic body to have the effect of basic buffering and shock absorption, and initially buffers vibration.

[0037] The shock absorption component 20 is connected to the bottom frame 11 on the side near the shock absorption plate 12, and the side of the shock absorption plate 12 away from the bottom frame 11 can abut against the battery assembly 60; some of the shock absorption components 20 are set as elastomers, which use the deformation of the elastomer to further absorb vibration energy and improve the shock absorption performance.

[0038] The multi-stage shock-absorbing base includes a first working state and a second working state. In the first working state, the shock-absorbing plate 12 is deformed by a vertical force (i.e., the battery pack 60 applies a vertical force to the shock-absorbing plate 12). When the relative displacement between the battery pack 60 and the base frame 11 is small, such as when the vehicle is driving smoothly or stationary, the first working state can buffer vertical vibrations and achieve basic shock absorption. In the second working state, the shock-absorbing assembly 20 and the shock-absorbing plate 12 are deformed simultaneously by at least a horizontal force (i.e., the battery pack 60 applies at least a horizontal force to the shock-absorbing assembly 20 and the shock-absorbing plate 12). Under special conditions such as when the vehicle accelerates, decelerates, or turns, where the relative displacement between the battery pack 60 and the base frame 11 is large, the shock-absorbing plate 12 may be subjected to vibrations in other directions, such as vertical. Through the synergistic effect of the shock-absorbing assembly 20 and the shock-absorbing plate 12, synergistic buffering of vibrations in multiple directions is achieved, enhancing the shock absorption effect of the multi-stage shock-absorbing base.

[0039] Furthermore, the shock absorption assembly 20 includes a shock absorption seat 21, a shock absorption ring 43 body 22, and an abutment unit 23; the shock absorption seat 21 is connected to the frame assembly 10; the shock absorption ring 43 body 22 is set as an elastic body, which uses elastic deformation to buffer the impact force and achieve the effect of buffering vibration; the shock absorption ring 43 body 22 is connected to the shock absorption seat 21; the abutment unit 23 is sleeved on the outer periphery of the shock absorption ring 43 body 22, which plays the role of transmitting horizontal force, wherein the abutment unit 23 is made of metal, which has a wear-resistant effect and extends the service life of the component;

[0040] The second working state also includes the abutment unit 23 transmitting at least a horizontal force (i.e., the battery assembly 60 applies at least a horizontal force to the abutment unit 23) to the damping ring 43 body 22, causing the damping ring 43 body 22 to deform. At the same time, the damping plate 12 is subjected to at least a horizontal force (i.e., the battery assembly 60 applies at least a horizontal force to the damping plate 12) and deforms, realizing the synergistic buffering of the horizontal force, thereby enhancing the horizontal damping effect, effectively dispersing the horizontal force to the damping ring 43 body 22 and the damping plate 12, thereby improving the buffering effect and ultimately ensuring the damping stability under dynamic working conditions.

[0041] Furthermore, such as Figure 3 As shown, the abutting unit 23 includes a first abutting arc plate 231 and a second abutting arc plate 232; the first abutting arc plate 231 is connected to one side of the damping ring 43 body 22 along a first direction; the other side of the damping ring 43 body 22 along the first direction is connected to the damping seat 21; the second abutting arc plate 232 is connected to one side of the damping ring 43 body 22 along a second direction; the other side of the damping ring 43 body 22 along the second direction is connected to the damping seat 21; the first direction (e.g. Figure 2 The minimum angle between the first direction (as shown) and the mounting surface of the frame assembly 10 (i.e., the top surface of the frame assembly 10) is within a first set range, wherein the first set range may include -15° to 15°, so that the first direction is parallel or nearly parallel to the mounting surface of the frame assembly 10; the second direction (as shown) Figure 2 The minimum angle between the first direction and the mounting surface (i.e., the top surface of the frame assembly 10) is within a second set range, wherein the second set range may include -15° to 15°, so that the second direction is parallel or nearly parallel to the mounting surface of the frame assembly 10; the minimum angle between the first direction and the second direction is within a third set range, wherein the third set range may include 75° to 105°, so that the first direction is perpendicular or nearly perpendicular to the second direction, so that the mounting orientation of the first abutting arc plate 231 and the second abutting arc plate 232 is adapted to the force direction during vehicle driving, thereby improving the force adaptability. The first abutting arc plate 231 and the second abutting arc plate 232 correspond to two directions respectively, and have the effect of wear resistance and buffering in two directions, thereby extending the service life of the battery assembly 60 and the abutting unit 23.

[0042] The second working state also includes at least one of the first abutting arc plate 231 and the second abutting arc transmitting at least a horizontal force to the damping ring 43 body 22, causing the damping ring 43 body 22 to deform. At the same time, the damping plate 12 is subjected to at least a horizontal force and deforms, effectively dispersing the horizontal force and achieving coordinated buffering of the horizontal force, thereby enhancing the horizontal damping effect.

[0043] Furthermore, the first abutting arc plate 231 protrudes along the first direction away from the shock-absorbing ring 43 body 22. This protrusion allows it to engage with the corresponding structure of the battery assembly 60, thereby securing the battery assembly 60 to the base and ultimately improving the assembly stability of the battery assembly 60 and the base. Preferably, a portion of the second abutting arc plate 232 protrudes along the second direction away from the shock-absorbing ring 43 body 22.

[0044] Furthermore, such as Figure 4 As shown, the battery assembly 60 includes a battery body 61 and a connecting frame unit 62; the battery body 61 is connected to the connecting frame unit 62. The connecting frame unit 62 includes a connecting frame, an abutment portion, and a protrusion portion; the battery body 61, the protrusion portion, and the abutment portion are respectively connected to the connecting frame; when the battery assembly 60 and the shock-absorbing base are assembled, the connecting frame abuts against the side of the frame assembly 10 near the shock-absorbing unit, and at least one of the abutment portion and the protrusion portion abuts against the outer peripheral wall of the shock-absorbing unit. The abutment portion is located on the side of the protrusion portion away from the frame assembly 10, and the projection area of ​​the shock-absorbing unit toward the frame assembly 10 partially overlaps with the projection area of ​​the protrusion portion toward the frame assembly 10. Further, as... Figure 5 As shown, the damping ring 43 body 22 is designed as a ring shape, which has the effect of uniform force distribution. The wall thickness of the damping ring 43 body 22 gradually decreases and then gradually increases along the vertical direction, making the wall thickness at both ends of the damping ring 43 body 22 larger in the axial direction, reducing the deformation at both ends of the damping ring 43 and improving the structural strength of the damping ring 43. The wall thickness in the middle is smaller, which provides more buffer space. Through this wall thickness design, both structural robustness and buffer performance can be taken into account, ultimately improving the overall damping effect of the damping ring 43 body 22.

[0045] Furthermore, the wall thickness of the damping ring 43 along the first direction (i.e., the length direction of the vehicle) is greater than the wall thickness of the damping ring 43 along the second direction (i.e., the width direction of the vehicle). Since the vehicle accelerates and decelerates more frequently than it turns, the cross-section of the damping ring 43 along the horizontal direction is elliptical, which adapts to the force characteristics in the driving direction. Through this differential wall thickness design, the damping ring 43 can have stronger buffering capacity in the driving direction with greater force, ultimately improving the working condition adaptability of the damping assembly 20.

[0046] Furthermore, the multi-stage shock-absorbing base also includes a guide assembly 40; the guide assembly 40 includes a guide seat 41, a guide hole 42, a shock-absorbing ring 43, and a guide rod 44; the guide seat 41 is connected to the base frame 11 to achieve fixed installation of the guide assembly 40 and ensure the stability of the guide structure; the guide hole 42 is recessed from one side of the guide seat 41 to the other side, providing a path for the movement of the guide rod 44 and playing a guiding and limiting role; the shock-absorbing ring 43 is set as an elastic body, and through the deformation of the shock-absorbing ring 43, it plays a role in buffering the impact force generated during the movement of the guide rod 44; the outer peripheral wall of the shock-absorbing ring 43 abuts against the inner peripheral wall of the guide seat 41; one end of the guide rod 44 is connected to the inner peripheral wall of the shock-absorbing ring 43, and the other end extends towards the shock-absorbing plate 12, playing a role in transmitting guiding force and buffering force. The diameter of the guide rod 44 gradually decreases from bottom to top, thereby playing a certain guiding role when the battery assembly 60 is installed.

[0047] Furthermore, such as Figure 2 As shown, the multi-stage shock-absorbing base also includes a first locking assembly 30 for locking and fixing the battery assembly 60; the first locking assembly 30 includes a locking seat 31 and a locking unit 32; the locking seat 31 is connected to the base frame 11; the locking unit 32 includes a drive part 321, a locking rod 322, and a locking head 323; the outer peripheral surface of the locking rod 322 is movably connected to the inner peripheral surface of the locking seat 31; the locking head 323 is connected to the end of the locking rod 322 away from the locking seat 31; the projection of the locking rod 322 toward the locking head 323 coincides with a portion of the locking head 323;

[0048] The first locking assembly 30 includes a third working state and a fourth working state. The third working state includes the drive unit 321 driving the locking head 323 to move until the length direction of the locking head 323 is parallel to the first direction, thereby achieving locking in the first direction and enabling the lock head to engage with the battery assembly 60 after locking. The fourth working state includes the drive unit 321 driving the locking head 323 to move until the length direction of the locking head 323 is parallel to the second direction, thereby achieving locking in the second direction and enabling the lock head to engage with the battery assembly 60 after locking. By switching between the third and fourth working states, locking in different directions can be achieved, thereby enabling the lock head to engage with the battery assembly 60 and ultimately improving the assembly firmness of the battery assembly 60 and the base.

[0049] Furthermore, the locking unit 32 also includes a shock-absorbing pad 53324; the shock-absorbing pad 53324 is set as an elastomer, which absorbs vibration by elastic deformation to achieve the effect of shock absorption and noise reduction; the outer peripheral surface of the shock-absorbing pad 53324 abuts against the inner peripheral surface of the locking seat 31 to realize the fixed installation of the shock-absorbing pad 53324 and ensure the effect of buffering; the outer peripheral surface of the locking rod 322 is movably connected to the locking seat 31 through the inner peripheral surface of the shock-absorbing pad 53324, which reduces the friction between the locking rod 322 and the locking seat 31 and extends the service life of the components.

[0050] Example 2:

[0051] This embodiment provides a battery system, which includes any of the multi-stage shock-absorbing bases in Embodiment 1 above. The battery system also includes a battery assembly 60; the battery assembly 60 includes a battery body 61 and a connecting frame unit 62; the battery body 61 is connected to the connecting frame unit 62.

[0052] The battery system includes a first connection state and a second connection state; the first connection state includes the connection frame unit 62 abutting against the shock-absorbing plate 12 of the bottom frame body 11, and the shock-absorbing plate 12 deforms under the force of the connection frame, realizing the initial assembly buffer of the battery assembly 60 and the bottom support, and achieving the effect of basic shock absorption.

[0053] The second combined state includes relative displacement between the connecting frame unit 62 and the bottom frame body 11 at least in the horizontal direction, adapting to the dynamic working conditions of the vehicle during driving, and improving the dynamic assembly stability. The connecting frame unit 62 abuts against the damping plate 12 of the bottom frame body 11, and the connecting frame unit 62 abuts against the damping component 20, realizing multi-component collaborative buffering, thereby enhancing the damping effect. The damping plate 12 deforms under the force of the connecting frame, further absorbing vibration energy and improving the buffering performance.

[0054] Furthermore, the battery system also includes a second locking assembly 50; the second locking assembly 50 includes a bolt 51, a nut 52, and a shock-absorbing washer 53324; one end of the bolt 51 is connected to the bottom frame body 11, and the other end extends toward the shock-absorbing assembly 20;

[0055] The first engagement state also includes the bolt 51 passing through the bottom frame body 11, the connecting frame unit 62, the shock-absorbing pad 53324, and the nut 52 in sequence; the nut 52 and the bolt 51 cause the bottom frame body 11, the connecting frame unit 62, and the shock-absorbing pad 53324 to abut in sequence.

[0056] The second engagement state also includes the bolt 51 passing through the bottom frame body 11, the connecting frame unit 62, the shock-absorbing pad 53324, and the nut 52 in sequence; the nut 52 and the bolt 51 cause the bottom frame body 11, the connecting frame unit 62, and the shock-absorbing pad 53324 to abut in sequence.

[0057] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A multi-stage shock-absorbing base, characterized in that, The multi-stage shock-absorbing base includes: A frame assembly includes a base frame and a damping plate; the base frame is connected to the damping plate; at least a portion of the damping plate is configured as an elastic body. A shock-absorbing assembly is connected to the bottom frame body on the side near the shock-absorbing plate; part of the shock-absorbing assembly is configured as an elastic body. The multi-stage shock-absorbing base includes a first working state and a second working state; the first working state includes the shock-absorbing plate being deformed by a force applied in the vertical direction; the second working state includes the shock-absorbing assembly and the shock-absorbing plate being deformed simultaneously by at least a force applied in the horizontal direction.

2. The multi-stage shock-absorbing base according to claim 1, characterized in that, The damping assembly includes a damping seat, a damping ring, and an abutment unit; the damping seat is connected to the frame assembly; the damping ring is configured as an elastic body; the damping ring is connected to the damping seat; and the abutment unit is sleeved on the outer periphery of the damping ring. The second working state also includes the abutting unit transmitting a force at least along the horizontal direction to the damping ring, causing the damping ring to deform, while the damping plate is subjected to a force at least along the horizontal direction and deforms.

3. A multi-stage shock-absorbing base according to claim 2, characterized in that, The abutting unit includes a first abutting arc plate and a second abutting arc plate; the first abutting arc plate is connected to one side of the damping ring body along a first direction; the other side of the damping ring body along the first direction is connected to the damping seat; the second abutting arc plate is connected to one side of the damping ring body along a second direction; the other side of the damping ring body along the second direction is connected to the damping seat; the minimum angle between the first direction and the mounting surface of the frame assembly is within a first set range; the minimum angle between the second direction and the mounting surface is within a second set range; the minimum angle between the first direction and the second direction is within a third set range. The second working state also includes at least one of the first abutting arc plate and the second abutting arc plate transmitting a force at least along the horizontal direction to the damping ring body, causing the damping ring body to deform, while the damping plate is subjected to a force at least along the horizontal direction and deforms.

4. A multi-stage shock-absorbing base according to claim 3, characterized in that, Part of the first abutting arc plate is provided to protrude in the direction away from the shock-absorbing ring along the first direction.

5. A multi-stage shock-absorbing base according to claim 2, characterized in that, The damping ring is configured as a ring shape; the wall thickness of the damping ring gradually decreases and then gradually increases along the vertical direction.

6. A multi-stage shock-absorbing base according to claim 2, characterized in that, The wall thickness of the damping ring along the first direction is greater than the wall thickness of the damping ring along the second direction.

7. A multi-stage shock-absorbing base according to claim 1, characterized in that, The multi-stage shock-absorbing base also includes a guide assembly; the guide assembly includes a guide seat, a guide hole, a shock-absorbing ring, and a guide rod; the guide seat is connected to the base frame body; the guide hole is recessed from one side of the guide seat to the other side; the shock-absorbing ring is configured as an elastic body; the outer peripheral wall of the shock-absorbing ring abuts against the inner peripheral wall of the guide seat; one end of the guide rod is connected to the inner peripheral wall of the shock-absorbing ring, and the other end extends toward the shock-absorbing plate.

8. A multi-stage shock-absorbing base according to claim 1, characterized in that, The multi-stage shock-absorbing base also includes a first locking assembly; the first locking assembly includes a locking seat and a locking unit; the locking seat is connected to the base frame; the locking unit includes a drive part, a locking rod, and a locking head; the outer peripheral surface of the locking rod is movably connected to the inner peripheral surface of the locking seat; the locking head is connected to the end of the locking rod away from the locking seat; the projection of the locking rod toward the locking head coincides with a portion of the locking head; The first locking assembly includes a third working state and a fourth working state; the third working state includes the driving unit driving the locking head to move until the length direction of the locking head is parallel to the first direction; the fourth working state includes the driving unit driving the locking head to move until the length direction of the locking head is parallel to the second direction.

9. A multi-stage shock-absorbing base according to claim 8, characterized in that, The locking unit further includes a shock-absorbing pad; the shock-absorbing pad is configured as an elastic body; the outer peripheral surface of the shock-absorbing pad abuts against the inner peripheral surface of the locking seat; the outer peripheral surface of the locking rod is movably connected to the locking seat through the inner peripheral surface of the shock-absorbing pad.

10. A battery system, characterized in that, The battery system includes a multi-stage shock-absorbing base as described in any one of claims 1-9, and the battery system further includes: Battery assembly; the battery assembly includes a battery body and a connecting frame unit; the battery body is connected to the connecting frame unit; The battery system includes a first connection state and a second connection state; the first connection state includes the connection frame unit abutting against the shock-absorbing plate of the bottom frame body, and the shock-absorbing plate deforming under the force of the connection frame. The second combined state includes the relative displacement between the connecting frame unit and the bottom frame body at least along the horizontal direction, the abutment between the connecting frame unit and the damping plate of the bottom frame body, the abutment between the connecting frame unit and the damping assembly, and the deformation of the damping plate and the damping plate under the force of the connecting frame.

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