Buffering bottom support and battery changing vehicle
By designing a multi-stage deformation buffer base and combining elastomers and rigid limiters, the problem of limiting the battery base during vibration was solved, thus ensuring the stability and safety of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUZHOU XCMG JIUXING ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2026-02-04
- Publication Date
- 2026-04-10
AI Technical Summary
The existing battery base cannot provide sufficient limiting support when there is excessive vibration, which causes the battery pack to shift relative to the vehicle frame, resulting in wear, loose electrical interfaces and safety hazards.
Design a cushioning base, including a base assembly and a shock-absorbing assembly, which absorbs vibration through multi-stage deformation states. It utilizes an elastomer to absorb vibration during small vibrations and forms a rigid mechanical limit during large vibrations to restrict relative movement.
It effectively limits the relative displacement of the battery pack, reduces wear, prevents loose electrical interfaces, ensures the power supply stability of the battery pack, eliminates safety hazards, and ensures the stability of the battery components during long-term vehicle operation.
Smart Images
Figure CN121822097A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of energy storage, in particular to a buffer bottom support and a battery swap vehicle. BACKGROUND
[0002] The battery bottom support of the battery swap vehicle is a core bearing and connecting component in the vehicle-battery separation system, and is used for placing the power battery of the vehicle. Such a battery bottom support is a key component for the battery swap vehicle to realize fast battery swapping, guarantee the installation stability of the battery pack and the safety of driving, and is widely used in various battery swap passenger vehicles and commercial vehicles.
[0003] The existing battery bottom support is connected with the vehicle girder through an elastic body. When the vehicle drives on a bumpy road and generates vibration, the elastic body can reduce the vibration transmitted from the girder to the power battery. However, when the vibration is too large, the elastic body cannot provide sufficient limiting support force, and it is difficult to effectively limit the relative displacement of the battery pack relative to the vehicle girder. Such relative movement not only aggravates the wear of the connection part between the battery pack and the bottom support, but also may cause the electrical interface to loosen and not to be in good contact, affecting the power supply stability of the battery pack, and even causing the locking mechanism to fail, bringing safety hazards. SUMMARY
[0004] To solve the problem of weak buffering capacity of the battery bottom support, the present application provides a buffer bottom support and a battery swap vehicle.
[0005] In a first aspect, the buffer bottom support provided by the present application comprises:
[0006] a base assembly comprising a base body, a first connecting unit; the first connecting unit comprises a first connecting plate, a first connecting ring, and a first limiting plate; the base body is connected with the first connecting plate; the first connecting ring is connected with the first connecting plate; the first limiting plate is connected with the base body;
[0007] a damping assembly comprising a damping unit and a damping seat; at least part of the damping unit is provided as an elastic body; the damping unit is connected with the damping seat; the damping unit is connected with the first connecting ring;
[0008] The buffer bottom support comprises a first state and a second state; the first state comprises that the relative movement of the damping seat and the base body causes the first deformation of the damping unit, and the damping seat is spaced apart from the first limiting plate; the second state comprises that the relative movement of the damping seat and the base body causes the second deformation of the damping unit, and the damping seat abuts against the first limiting plate; wherein the second deformation amount is greater than the first deformation amount.
[0009] In some embodiments, the damping unit comprises a core shaft, a buffer ring, and an outer sleeve ring; the core shaft is connected with the damping seat; the buffer ring is arranged as an elastic body; an inner circumferential surface of the buffer ring is in abutment with an outer circumferential surface of the core shaft; an inner circumferential surface of the outer sleeve ring is in abutment with an outer circumferential surface of the buffer ring; the outer sleeve ring is connected with an inner circumferential surface of the first connecting ring.
[0010] The first state further comprises that relative movement of the damping seat and the base body causes the buffer ring to deform by a first deformation amount; the second state further comprises that the relative movement of the damping seat and the base body causes the buffer ring to deform by a second deformation amount.
[0011] In some embodiments, an axial direction of the buffer ring is parallel to a first direction; the buffer ring deforms along a radial direction of itself when the base body and the damping seat move relative to each other along a second direction; the first limiting plate is arranged on one side of the base body along the second direction; wherein a minimum included angle between the first direction and a bearing surface of the base body is within a first set range; a minimum included angle between the second direction and the bearing surface is within a second set range; a minimum included angle between the first direction and the second direction is within a third set range.
[0012] The first state further comprises that the relative movement of the damping seat and the base body along the second direction causes the damping unit in the first connecting ring to deform by a third deformation amount; the second state further comprises that the relative movement of the damping seat and the base body along the second direction causes the damping unit in the first connecting ring to deform by a fourth deformation amount; the damping seat is in abutment with the first limiting plate; wherein the fourth deformation amount is greater than the third deformation amount.
[0013] In some embodiments, the base assembly further comprises a second connecting unit; the second connecting unit comprises a second connecting plate and a second connecting ring; the base body is connected with the second connecting plate; the second connecting plate is arranged in spaced apart relation with the first connecting plate; the second connecting ring is connected with the second connecting plate; the second connecting ring is connected with an outer circumferential surface of another buffer ring.
[0014] In some embodiments, an axial direction of the buffer ring in the second connecting ring is parallel to the second direction; the buffer ring deforms along a radial direction of itself when the base body and the damping seat move relative to each other along the first direction.
[0015] In some embodiments, the base assembly includes a plurality of the first connecting units, a plurality of the second connecting units; the base body has a first side along a first direction; the base body has a second side along the first direction; the first side and the second side are respectively provided with two first connecting units; one first limiting plate is arranged on one side of one first connecting plate close to another first connecting plate; the second connecting unit is arranged between two first limiting plates along a second direction.
[0016] The buffer bottom support further includes a plurality of the damping assemblies; the damping assemblies are respectively arranged corresponding to the first connecting units and the second connecting units.
[0017] In some embodiments, the second connecting unit further includes a second limiting plate; the second limiting plate is arranged on one side of the second connecting plate along the first direction.
[0018] The buffer bottom support further includes a third state and a fourth state; the third state includes that the damping seat and the base body relatively move along the first direction to make the damping units in the second connecting ring have a fifth deformation amount of deformation; the damping seat is arranged spaced apart from the second limiting plate; the fourth state includes that the damping seat and the base body relatively move along the first direction to make the damping units in the second connecting ring have a sixth deformation amount of deformation; the damping seat abuts against the second limiting plate; wherein the sixth deformation amount is greater than the fifth deformation amount.
[0019] In a second aspect, the application provides a battery replacement vehicle including the buffer bottom support of any one of the first aspect, the battery replacement vehicle further including:
[0020] A base assembly includes a base unit and a damping plate; the base unit is connected with the damping plate; the damping plate is arranged as an elastic body; the base unit is connected with the damping seat; the base body abuts against one side of the damping plate away from the base unit.
[0021] In some embodiments, the battery replacement vehicle further includes a battery assembly; the battery assembly is connected with the base body.
[0022] In some embodiments, the base unit includes a first base and a second base; the first base and the second base are arranged spaced apart along a first direction; the length direction of the first base and the second base is parallel to a second direction.
[0023] The base assembly includes a plurality of the first connecting units; a plurality of the damping assemblies; the damping assemblies are arranged corresponding to the first connecting units; two damping seats are connected with the first base; and another two damping seats are connected with the second base.
[0024] To solve the problem of weak buffering capacity of the battery bottom support, the application has the following advantages:
[0025] Through the connection of the first connecting plate, the first connecting ring, the first limiting plate and the base body in the base assembly, installation space is reserved for the damping assembly, and the damping units of the damping assembly are connected with the damping seat and the first connecting ring respectively. In combination with the first state and the second state of the buffer bottom support, when the vehicle produces small vibration, the damping seat moves relative to the base body to cause the damping units to deform by a first deformation amount. The damping seat is spaced apart from the first limiting plate, and the elastic body can absorb vibration through deformation characteristics. When the vehicle produces excessive vibration, the damping seat moves relative to the base body to cause the damping units to deform by a second deformation amount greater than the first deformation amount. The damping seat abuts against the first limiting plate to form rigid mechanical limiting, thereby effectively limiting the further relative movement of the base body and the damping seat, achieving graded buffering and limiting of vibration, achieving sufficient limiting support, and finally solving the problem that the existing battery bottom support cannot effectively limit the relative displacement when the vibration is too large, reducing the wear of the battery pack and the bottom support connection part, avoiding the occurrence of loose electrical interface and poor contact, ensuring the power supply stability of the battery pack, preventing the locking mechanism from failing, eliminating safety hazards, and ensuring the stability of the battery assembly during long-term operation of the vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 Structure diagram of the buffer bottom support and the battery assembly for an embodiment;
[0027] Figure 2 Structure diagram of the buffer bottom support for an embodiment; Figure 1 Structure diagram of the buffer bottom support for an embodiment;
[0028] Figure 3 Structure diagram of the buffer bottom support for an embodiment; Figure 2 Structure diagram of the damping assembly for an embodiment.
[0029] REFERENCE NUMERALS:
[0030] 12, damping plate; 20, base assembly; 21, base body; 22, first connecting unit; 221, first connecting plate; 222, first connecting ring; 223, first limiting plate; 23, second connecting unit; 231, second connecting plate; 232, second connecting ring; 233, second limiting plate; 30, damping assembly; 31, damping unit; 311, core shaft; 312, buffer ring; 313, outer sleeve ring; 32, damping seat; 40, battery assembly; 60, first direction; 70, second direction. DETAILED DESCRIPTION
[0031] The present disclosure will now be discussed with reference to a number of exemplary embodiments. It should be appreciated that these embodiments are discussed solely for the purpose of enabling those with ordinary skill in the art to better understand and consequently practice the present disclosure and are not intended to limit the scope of the present disclosure in any way.
[0032] As used herein, the term "includes" and its variants are to be read as open-ended terms that mean "includes, but is not limited to." The term "based on" is to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be understood to mean "at least one embodiment." The term "another embodiment" is to be understood to mean "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and the like, shall mean the specified orientation or position as being indicated by the orientation or position relationships shown in the drawings. These terms are merely used to describe particular embodiments and are in no way meant to limit the scope of the application or its embodiments. Also, some of the terms are used in their broadest generic sense unless otherwise indicated. For example, the term "upper" can also be used in some cases to mean a certain attachment or connection relationship. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances. Furthermore, the terms "mount," "provide," "have," "connected," "coupled," and "connected" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal connection between two devices, elements or components. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances. In addition, the terms "first," "second," and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.
[0033] In the existing buffer base, the damping seat 32 is rigidly connected with the vehicle girder, the support seat is fixedly connected with the battery pack, and the buffer is realized only through a single damping unit 31 between the two. Due to the unreasonable design of the structural strength of the damping unit 31, when the vehicle runs on a bumpy road and generates excessive vibration, it cannot provide sufficient limiting support force, and it is difficult to effectively limit the relative displacement of the battery pack relative to the vehicle girder. This relative displacement not only aggravates the wear of the connection part between the battery pack and the buffer base, but also may cause the electrical interface to loosen and the contact to be poor, affecting the stability of the power supply of the battery pack, and even causing the locking mechanism to fail, bringing safety hazards.
[0034] Example 1:
[0035] This embodiment discloses a cushioning base, such as Figure 2 As shown, the cushioning base includes a base assembly 20 and a shock-absorbing assembly 30.
[0036] The base assembly 20 includes a base body 21 and a first connecting unit 22. The first connecting unit 22 includes a first connecting plate 221, a first connecting ring 222, and a first limiting plate 223. The base body 21 is connected to the first connecting plate 221; the first connecting ring 222 is connected to the first connecting plate 221; and the first limiting plate 223 is connected to the base body 21. The first connecting unit 22 can connect the base body 21 to the battery assembly 40 that provides power to the vehicle. Space can also be reserved between the base body 21 and the battery assembly 40 for the subsequent installation of a shock-absorbing assembly 30.
[0037] like Figure 3 As shown, the shock absorption assembly 30 includes a shock absorption unit 31 and a shock absorption seat 32; at least part of the shock absorption unit 31 is configured as an elastomer; the shock absorption unit 31 is connected to the shock absorption seat 32; the shock absorption unit 31 is connected to the first connecting ring 222. The shock absorption unit 31 can absorb the vibration of the vehicle during bumps, starting, deceleration, and turning by utilizing the deformation characteristics of the elastomer, ensuring the stability of the battery assembly 40 during long-term vehicle operation.
[0038] The buffer base includes a first state and a second state; the first state includes the relative movement of the shock-absorbing seat 32 and the base body 21, causing the shock-absorbing unit 31 to undergo a first deformation, and the shock-absorbing seat 32 and the first limiting plate 223 are spaced apart; the second state includes the relative movement of the shock-absorbing seat 32 and the base body 21, causing the shock-absorbing unit 31 to undergo a second deformation, and the shock-absorbing seat 32 abuts against the first limiting plate 223; wherein, the second deformation is greater than the first deformation. When the vibration is small, the buffer base is in the first state, absorbing the vibration through the deformation of the elastic body. When the vibration is too large, when the deformation of the damping unit 31 reaches the second deformation, the buffer base is in the second state, and the damping seat 32 abuts against the first limiting plate 223 to form a rigid mechanical limit. This can limit the further relative movement between the base body 21 and the damping seat 32, thereby avoiding irregular deformation of the elastic body due to lack of restraint, avoiding wear at the connection between the battery pack and the base, and ensuring that the battery assembly 40 can maintain good stability even under large vibration. This also prevents loose electrical interfaces and poor contact, eliminates the safety hazards caused by the relative movement of the base body 21 and the damping seat 32, and ensures the stability of the battery assembly 40 during long-term vehicle operation.
[0039] Furthermore, such as Figure 3As shown, the damping unit 31 includes a spindle 311, a buffer ring 312, and an outer ring 313. The spindle 311 is connected to the damping seat 32. The buffer ring 312 is an elastic body. The inner circumferential surface of the buffer ring 312 abuts against the outer circumferential surface of the spindle 311. The inner circumferential surface of the outer ring 313 abuts against the outer circumferential surface of the buffer ring 312. The outer ring 313 is connected to the inner circumferential surface of the first connecting ring 222. Thus, the spindle 311, buffer ring 312, and outer ring 313 are nested together. The spindle 311 and outer ring 313 can limit the deformation trajectory and range of the buffer ring 312, making the damping function more precise, stable, and durable. It is worth noting that the spindle 311 and outer ring 313 can be made of composite metal, thereby improving the durability of the damping unit 31.
[0040] The first state also includes the relative movement of the shock absorber 32 and the base 21, causing the buffer ring 312 to undergo a first deformation. In the first state, the buffer ring 312 can absorb normal bumps and vibrations through small-amplitude compression. The relative movement of the shock absorber 32 and the base 21 causes the second state, which also includes the buffer ring 312 undergoing a second deformation. In the second state, the buffer ring 312 can achieve buffering of extreme vibrations through greater compression, while avoiding irregular deformation of the elastomer due to lack of constraint, so that the battery assembly 40 can maintain good stability even under large vibrations.
[0041] Furthermore, such as Figure 2 As shown, the axial direction of the buffer ring is parallel to the first direction 60; when the base body 21 and the shock absorber 32 move relative to each other along the second direction 70, the buffer ring 312 deforms radially; the first limiting plate 223 is disposed on one side of the base body 21 along the second direction 70; wherein, the minimum angle between the first direction 60 and the bearing surface of the base body 21 is within a first set range; the minimum angle between the second direction 70 and the bearing surface is within a second set range; the minimum angle between the first direction 60 and the second direction 70 is within a third set range. Specifically, the first set range is 0°~5°, where the first direction 60 is parallel or nearly parallel to the bearing surface of the base body 21; the second set range is 0°~5°, where the second direction 70 is parallel or nearly parallel to the bearing surface of the base body 21; the third set range is 90°±5°, where the first direction 60 and the second direction 70 are perpendicular or nearly perpendicular.
[0042] like Figure 2As shown, the first direction 60 is the width direction of the vehicle, and the second direction 70 is the length direction and driving direction of the vehicle. When the vehicle is in motion, the vibrations and impacts caused by acceleration, deceleration, and front-to-back bumps are transmitted radially along the buffer ring 312. Since the buffer ring 312 is a ring structure, the stress distribution is more uniform when it deforms radially. In this way, the radial deformation of the buffer ring 312 absorbs the vibrations of the vehicle during acceleration, deceleration, and front-to-back bumps, ensuring the stability of the battery assembly 40. The first limiting plate 223 can prevent the shock absorber seat 32 from moving excessively relative to the base body 21 along the second direction 70 when the vibration is too large, ensuring the stability of the battery assembly 40 when the vehicle is running.
[0043] The first state also includes the shock absorber seat 32 and the base body 21 moving relative to each other along the second direction 70, causing the shock absorber unit 31 in the first connecting ring 222 to undergo a third deformation, with the shock absorber seat 32 and the first limiting plate 223 spaced apart; the second state also includes the shock absorber seat 32 and the base body 21 moving relative to each other along the second direction 70, causing the shock absorber unit 31 in the first connecting ring 222 to undergo a fourth deformation, with the shock absorber seat 32 abutting against the first limiting plate 223; wherein, the fourth deformation is greater than the third deformation. The first state can correspond to normal operating conditions such as urban roads and high-speed stable driving, where the small radial deformation of the buffer ring 312 absorbs slight vibrations, avoiding vibration transmission caused by excessive limiting, and balancing the stability of the battery pack 40 and driving comfort; the second state can correspond to extreme operating conditions such as rural dirt roads and potholes, where the buffer ring 312 can undergo a large radial deformation to absorb high-intensity impacts, ensuring the stability of the battery pack 40.
[0044] Furthermore, such as Figure 2 As shown, the base assembly 20 also includes a second connecting unit 23; the second connecting unit 23 includes a second connecting plate 231 and a second connecting ring 232; the base body 21 is connected to the second connecting plate 231; the second connecting plate 231 is spaced apart from the first connecting plate 221; the second connecting ring 232 is connected to the second connecting plate 231; the second connecting ring 232 is connected to the outer peripheral surface of another buffer ring 312. In this way, the second connecting unit 23 and the first connecting unit 22 work together to buffer the battery assembly 40, which can further absorb the vibration of the vehicle and ensure the stability of the battery assembly 40 during long-term operation of the vehicle.
[0045] Furthermore, such as Figure 2As shown, the axial direction of the buffer ring 312 within the second connecting ring 232 is parallel to the second direction 70; when the base body 21 and the shock absorber 32 move relative to each other along the first direction 60, the buffer ring 312 deforms radially. When the vehicle turns, the center of gravity shifts or vibrations cause relative displacement between the shock absorber 32 and the base body 21 along the first direction 60. The deformation of the second connecting unit 23 effectively absorbs the vibrations generated during vehicle turns, preventing the battery assembly 40 from twisting or shifting due to turning, thus ensuring the stability of the battery assembly 40.
[0046] Furthermore, such as Figure 2 As shown, the base assembly 20 includes multiple first connecting units 22 and multiple second connecting units 23; one side of the base body 21 along the first direction 60 is the first side; the other side of the base body 21 along the first direction 60 is the second side; two first connecting units 22 are respectively provided on the first side and the second side. This multiple first connecting units 22 and multiple second connecting units 23 form a symmetrical distribution structure, which can evenly transmit the vibration load to the four axes of the base body 21 when the vehicle vibrates, avoiding deformation or damage to the base due to localized stress concentration, and improving the load-bearing capacity of the base assembly 20. Furthermore, during vehicle operation, the vibrations generated by acceleration, deceleration, reversing, and front-to-back bumps are more frequent than those generated during turning. Therefore, the number of first connecting units 22 is greater than the number of second connecting units 23. Having the same number of first connecting units 22 and second connecting units 23 better conforms to the vibration patterns of the vehicle, avoiding insufficient buffering effect and reducing costs in non-core directions. A first limiting plate 223 is disposed on the side of a first connecting plate 221 close to another first connecting plate 221; the second connecting unit 23 is disposed between the two first limiting plates 223 at intervals along the second direction 70; this makes the layout of the first limiting plates 223 more compact and can avoid interference between the first limiting plate 223 and the second connecting unit 23.
[0047] The buffer base also includes multiple shock-absorbing components 30; the shock-absorbing components 30 are respectively configured to correspond to the first connecting unit 22 and the second connecting unit 23. In this way, the multiple shock-absorbing components 30 can dampen the multiple first connecting units 22 and the multiple second connecting units 23, absorb the vibration of the base assembly 20, and ensure the stability of the battery assembly 40 during long-term vehicle operation.
[0048] Furthermore, such as Figure 2 As shown, the second connecting unit 23 also includes a second limiting plate 233; the second limiting plate 233 is disposed on one side of the second connecting plate 231 along the first direction 60. The second limiting plate 233 can prevent the shock absorber 32 from moving excessively relative to the base body 21 along the first direction 60 when the vibration is too large, thus ensuring the stability of the battery assembly 40 during vehicle operation.
[0049] The buffer base also includes a third state and a fourth state. The third state involves the shock absorber 32 and base 21 moving relative to each other along the first direction 60, causing the shock absorber unit 31 within the second connecting ring 232 to undergo a fifth deformation. The shock absorber 32 and the second limiting plate 233 are spaced apart. The fourth state involves the shock absorber 32 and base 21 moving relative to each other along the first direction 60, causing the shock absorber unit 31 within the second connecting ring 232 to undergo a sixth deformation. The shock absorber 32 abuts against the second limiting plate 233. The sixth deformation is greater than the fifth deformation. The third state can handle normal vibrations along the first direction 60, such as vibrations generated when the vehicle makes a gentle turn. When the vehicle makes a sharp turn, the vibration along the first direction 60 is greater. In this case, the buffer base enters the fourth state, which can absorb the severe vibrations generated by sharp turns, ensuring the stability of the vehicle battery assembly 40.
[0050] Example 2:
[0051] This embodiment discloses a battery swapping vehicle, which includes a buffer base as described in any one of the embodiments, and also includes a base assembly.
[0052] like Figure 1 and Figure 2 As shown, the base assembly includes a base unit and a damping plate 12; the base unit is connected to the damping plate 12; the damping plate 12 is configured as an elastomer; the base unit is connected to the damping seat 32; the base body 21 abuts against the side of the damping plate 12 away from the base unit. Thus, the damping plate 12 is positioned between the base body 21 and the base unit. The base unit is used to mount the battery assembly 40. During vehicle operation, the damping plate 12 can absorb the vibration of the base body 21, ensuring the stability of the battery assembly 40. Furthermore, the damping unit can utilize the deformation characteristics of the elastomer to absorb vibrations during vehicle bumps, starting, deceleration, and steering, ensuring the stability of the battery assembly 40 during long-term vehicle operation.
[0053] When the vibration is small, the damping unit 31 is in the first state, absorbing the vibration through the deformation of the elastic body. When the vibration is too large, when the deformation of the damping unit 31 reaches the second deformation, the damping seat 32 abuts against the first limiting plate 223, forming a rigid mechanical limit, directly restricting further relative movement between the base body 21 and the damping seat 32, thereby avoiding safety hazards caused by the base body 21 and the damping seat 32, and ensuring the stability of the battery assembly 40 during long-term vehicle operation. In addition, in other embodiments, damping plates 12 are connected to both opposite sides of the base unit.
[0054] Furthermore, such as Figure 1As shown, the battery swapping vehicle also includes a battery pack 40; the battery pack 40 is connected to the base 21. During vehicle operation, the shock absorber 12 can absorb the vibration of the base 21, ensuring the stability of the battery pack 40. Moreover, the shock absorber unit 31 can utilize the deformation characteristics of the elastic body to absorb the vibration of the vehicle during bumps, starting, deceleration, and turning, ensuring the stability of the battery pack 40 during long-term vehicle operation.
[0055] Furthermore, the base unit includes a first base and a second base; the first base and the second base are spaced apart along a first direction 60; the length direction of the first base and the second base is parallel to the second direction 70;
[0056] The base assembly 20 includes multiple first connecting units 22; multiple shock-absorbing components 30; the shock-absorbing components 30 are correspondingly arranged with the first connecting units 22; two shock-absorbing seats 32 are connected to the first base; and two other shock-absorbing seats 32 are connected to the second base. The load of the base assembly 20 can be distributed to the first base and the second base, which can avoid local stress concentration caused by a single base bearing the load. The first base and the second base can be the main beam of the vehicle, so that the vibrations generated by the vehicle due to road bumps, acceleration, deceleration, reversing, and turning are transmitted to the shock-absorbing components 30 through the first base and the second base, thereby maintaining the stability of the battery assembly 40.
[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 cushioning base, characterized in that, The cushioning base includes: A base assembly includes a base body and a first connecting unit; the first connecting unit includes a first connecting plate, a first connecting ring, and a first limiting plate; the base body is connected to the first connecting plate; the first connecting ring is connected to the first connecting plate; and the first limiting plate is connected to the base body. A vibration damping assembly includes a vibration damping unit and a vibration damping base; at least a portion of the vibration damping unit is configured as an elastic body; the vibration damping unit is connected to the vibration damping base; the vibration damping unit is connected to the first connecting ring; The buffer base includes a first state and a second state; the first state includes the relative movement of the shock-absorbing seat and the base body causing the shock-absorbing unit to undergo a first deformation, and the shock-absorbing seat and the first limiting plate are spaced apart; the second state includes the relative movement of the shock-absorbing seat and the base body causing the shock-absorbing unit to undergo a second deformation, and the shock-absorbing seat abutting against the first limiting plate; wherein, the second deformation is greater than the first deformation.
2. The cushioning base according to claim 1, characterized in that, The damping unit includes a spindle, a buffer ring, and an outer ring; the spindle is connected to the damping seat; the buffer ring is configured as an elastic body; the inner circumferential surface of the buffer ring abuts against the outer circumferential surface of the spindle; the inner circumferential surface of the outer ring abuts against the outer circumferential surface of the buffer ring; the outer ring is connected to the inner circumferential surface of the first connecting ring. The first state further includes the relative movement of the shock absorber and the base body causing the buffer ring to undergo a first deformation; the relative movement of the shock absorber and the base body causes the second state to further include the buffer ring undergoing a second deformation.
3. A cushioning base according to claim 2, characterized in that, The buffer ring's axial direction is parallel to the first direction; when the base body and the shock absorber move relative to each other along the second direction, the buffer ring deforms radially; the first limiting plate is disposed on one side of the base body along the second direction; wherein, the minimum angle between the first direction and the bearing surface of the base body is within a first set range; the minimum angle between the second direction and the bearing surface is within a second set range; and the minimum angle between the first direction and the second direction is within a third set range. The first state further includes the shock absorber seat and the base body moving relative to each other along the second direction, causing the shock absorber unit within the first connecting ring to undergo a third deformation, and the shock absorber seat and the first limiting plate being spaced apart; the second state further includes the shock absorber seat and the base body moving relative to each other along the second direction, causing the shock absorber unit within the first connecting ring to undergo a fourth deformation, and the shock absorber seat abutting against the first limiting plate; wherein, the fourth deformation is greater than the third deformation.
4. A cushioning base according to claim 3, characterized in that, The base assembly further includes a second connecting unit; the second connecting unit includes a second connecting plate and a second connecting ring; the base body is connected to the second connecting plate; the second connecting plate is spaced apart from the first connecting plate; the second connecting ring is connected to the second connecting plate; the second connecting ring is connected to the outer peripheral surface of another buffer ring.
5. A cushioning base according to claim 4, characterized in that, The axial direction of the buffer ring within the second connecting ring is parallel to the second direction; when the base body and the shock absorber move relative to each other along the first direction, the buffer ring deforms radially.
6. A cushioning base according to claim 5, characterized in that, The base assembly includes multiple first connecting units and multiple second connecting units; one side of the base body along the first direction is the first side; The base body has a second side on the other side along the first direction; two first connecting units are respectively provided on the first side and the second side; a first limiting plate is provided on the side of one first connecting plate close to the other first connecting plate; the second connecting unit is provided between the two first limiting plates at intervals along the second direction; The buffer base also includes multiple shock-absorbing components; the shock-absorbing components are respectively configured to correspond to the first connecting unit and the second connecting unit.
7. A cushioning base according to claim 5, characterized in that, The second connecting unit further includes a second limiting plate; the second limiting plate is disposed on one side of the second connecting plate along the first direction; The buffer base also includes a third state and a fourth state; the third state includes the shock-absorbing seat and the base body moving relative to each other along the first direction, causing the shock-absorbing unit in the second connecting ring to undergo a fifth deformation, and the shock-absorbing seat and the second limiting plate being spaced apart; the fourth state includes the shock-absorbing seat and the base body moving relative to each other along the first direction, causing the shock-absorbing unit in the second connecting ring to undergo a sixth deformation, and the shock-absorbing seat abutting against the second limiting plate; wherein, the sixth deformation is greater than the fifth deformation.
8. A battery-swapping vehicle, characterized in that, The battery swapping vehicle includes a buffer base as described in any one of claims 1-7, and the battery swapping vehicle further includes: A base assembly includes a base unit and a damping plate; the base unit is connected to the damping plate; the damping plate is configured as an elastic body; the base unit is connected to the damping seat; the base body abuts against the side of the damping plate away from the base unit.
9. A battery swapping vehicle according to claim 8, characterized in that, The battery swapping vehicle also includes a battery assembly; the battery assembly is connected to the base body.
10. A battery swapping vehicle according to claim 8, characterized in that, The base unit includes a first base and a second base; the first base and the second base are spaced apart along a first direction; the length direction of the first base and the second base is parallel to the second direction; The base assembly includes a plurality of first connecting units; a plurality of shock-absorbing components; the shock-absorbing components are correspondingly arranged with the first connecting units; two shock-absorbing seats are connected to the first base; and the other two shock-absorbing seats are connected to the second base.