Battery pack hanging damping device and vehicle

Abstract

The utility model relates to the technical field of battery pack installation, in particular to a battery pack hanging damping device and a vehicle. The battery pack hanging damping device comprises a first connecting assembly, a damping assembly and a second connecting assembly, the first end of the first connecting assembly is used for being fixedly connected with one of a frame and a battery pack, and the damping assembly is elastically connected with the second end of the first connecting assembly in the vertical direction. The second connecting assembly is used for being fixedly connected with the other one of the frame and the battery pack, and the second connecting assembly is elastically connected with the damping assembly in the horizontal direction. According to the vehicle provided by the utility model, the battery pack hanging damping device is applied, so that mechanical shock and vibration on the battery pack in the vertical direction and the horizontal direction are reduced, the use working condition of the battery pack is optimized, the use experience of the battery pack is improved, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack installation, in particular to a battery pack hanging shock-absorbing device and a vehicle. Background Art

[0002] Currently, between the battery pack and the vehicle frame, bolts are usually used to directly fix the battery pack to the frame, thus rigidly connecting the battery pack and the frame as a whole. However, the above-mentioned fixed installation method of the battery pack causes the vibration and mechanical shock to be directly transmitted to the battery pack when the frame is subjected to vibration and mechanical shock, deteriorating the working conditions of the battery pack, and further reducing the usage experience and service life of the battery pack.

[0003] In the related art, in order to reduce the vibration and mechanical shock received by the battery pack, a suspension device is used to achieve flexible connection between the battery pack and the frame. However, this suspension device cannot effectively avoid the vibration and mechanical shock received by the battery pack in all directions.

[0004] Therefore, there is an urgent need for a battery pack hanging shock-absorbing device and a vehicle to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a battery pack hanging shock-absorbing device and a vehicle to reduce the mechanical shock and vibration received by the battery pack in the vertical direction and the horizontal direction, optimize the working conditions of the battery pack, and improve the usage experience and service life of the battery pack.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A battery pack hanging shock-absorbing device includes:

[0008] A first connection component, the first end of which is used for fixedly connecting to one of the frame and the battery pack;

[0009] A shock-absorbing component, which is elastically connected to the second end of the first connection component in the vertical direction; and

[0010] A second connection component, which is used for fixedly connecting to the other of the frame and the battery pack, and the second connection component is elastically connected to the shock-absorbing component in the horizontal direction.

[0011] As an optional solution, a sealed first accommodation cavity is arranged inside the shock-absorbing component, and the first accommodation cavity is filled with damping liquid. The first connection component includes:

[0012] A first moving disk, which is located in the first accommodating cavity and can move along the vertical direction in the first accommodating cavity; and

[0013] A first elastic member, which extends along the vertical direction, is located in the first accommodating cavity, has a first end connected to the first moving disk, and a second end connected to the inner top wall of the first accommodating cavity.

[0014] As an alternative, the outer peripheral wall of the first moving disk fits against the inner peripheral wall of the first accommodating cavity, and the first moving disk is provided with a through first damping hole.

[0015] As an alternative, a first through hole communicating with the first accommodating cavity is provided at the top of the shock absorption assembly, and the first connection assembly further includes:

[0016] A mounting disk, which is fixedly connected to one of the vehicle frame and the battery pack;

[0017] A damping connecting rod, whose first end is fixedly connected to the mounting disk, and whose second end passes through the first through hole and extends into the first accommodating cavity to be fixedly connected to the first moving disk.

[0018] As an alternative, the first elastic member is a spring, and the spring is sleeved on the damping connecting rod.

[0019] As an alternative, a sealed second accommodating cavity is provided inside the second connection assembly, and the damping liquid is also filled in the second accommodating cavity. The shock absorption assembly includes:

[0020] A first connection column, inside which a sealed first accommodating cavity is provided;

[0021] A moving frame, which is fixedly connected to the first connection column, and one end of the moving frame away from the first connection column extends into the second accommodating cavity;

[0022] A plurality of damping balls, all of which are located in the second accommodating cavity, are arranged at intervals along the circumferential direction of the moving frame, and each damping ball abuts against the outer peripheral wall of the moving frame; and

[0023] A plurality of second elastic members, each of which extends along the horizontal direction, are arranged in one-to-one correspondence with the plurality of damping balls. The first end of the second elastic member is connected to the damping ball, and the second end of the second elastic member is connected to the cavity wall of the second accommodating cavity.

[0024] As an alternative, the second accommodating cavity includes a plurality of guiding cavities communicating with each other. The plurality of guiding cavities are arranged at intervals along the circumferential direction of the moving frame. Each guiding cavity extends along the horizontal direction. Each guiding cavity accommodates the second elastic member and the damping ball. The damping ball is provided with a through second damping hole. The outer wall of the damping ball fits against the wall of the corresponding guiding cavity, and the damping ball can move along the wall of the guiding cavity in the horizontal direction.

[0025] As an alternative, the moving frame includes:

[0026] A second moving disk fixedly connected to the first connecting column; and

[0027] A second connecting column fixedly connected to a side of the second moving disk away from the first connecting column. The second connecting column extends into the second accommodating cavity. The plurality of damping balls are arranged at intervals along the circumferential direction of the second connecting column, and the outer peripheral wall of the second connecting column abuts against the plurality of damping balls.

[0028] As an alternative, the second connecting assembly includes a first housing and a second housing that are snap-fitted and fixed. The second housing is fixedly connected to the other of the vehicle frame and the battery pack. The first housing and the second housing are jointly assembled to form the second accommodating cavity. The first housing is provided with a communicating accommodating groove and a second through hole. The second through hole communicates with the second accommodating cavity. The second connecting column passes through the second through hole and extends into the second accommodating cavity. The second moving disk is movably accommodated in the accommodating groove, and the second moving disk blocks the second through hole.

[0029] A vehicle includes a vehicle frame, a battery pack, and the battery pack hanging shock absorption device as described above. The battery pack hanging shock absorption device is connected between the vehicle frame and the battery pack.

[0030] Advantages of the present utility model:

[0031] The present utility model provides a battery pack hanging and damping device, which includes a first connection component, a damping component, and a second connection component. Among them, the first end of the first connection component is used for fixedly connecting to one of the vehicle frame and the battery pack, the damping component is elastically connected to the second end of the first connection component in the vertical direction, the second connection component is used for fixedly connecting to the other of the vehicle frame and the battery pack, and the second connection component is elastically connected to the damping component in the horizontal direction. For the battery pack hanging and damping device provided by the present utility model, since the damping component is elastically connected to the second end of the first connection component in the vertical direction, and the second connection component is elastically connected to the damping component in the horizontal direction, it effectively reduces the mechanical shock and vibration of the battery pack in the vertical and horizontal directions, alleviates the impact and vibration of the battery pack from the vehicle frame in all directions, thereby optimizing the operating conditions of the battery pack, improving the usage experience of the battery pack and the service life of the battery pack.

[0032] The present utility model also provides a vehicle, which realizes the installation of the battery pack on the vehicle frame by applying the above battery pack hanging and damping device, effectively reducing the mechanical shock and vibration of the battery pack in the vertical and horizontal directions, alleviating the impact and vibration of the battery pack from the vehicle frame in all directions, optimizing the operating conditions of the battery pack, and improving the usage experience of the battery pack and the service life of the battery pack. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of the battery pack hanging and damping device provided by an embodiment of the present utility model;

[0034] Figure 2 is a structural sectional view of the battery pack hanging and damping device provided by an embodiment of the present utility model;

[0035] Figure 3 is a partial structural schematic diagram of the first connection component provided by an embodiment of the present utility model;

[0036] Figure 4 is an exploded structural diagram of the battery pack hanging and damping device provided by an embodiment of the present utility model.

[0037] In the figure:

[0038] 1. First connection component; 11. First moving disk; 111. First damping hole; 12. First elastic member; 13. Mounting disk; 14. Damping connecting rod;

[0039] 2. Damping component; 21. First connecting column; 211. First accommodating cavity; 212. First through hole; 22. Moving frame; 221. Second moving disk; 222. Second connecting column; 23. Damping ball; 231. Second damping hole; 24. Second elastic member; 25. First sealing ring;

[0040] 3. The second connection component; 31. The first housing; 311. The accommodation groove; 312. The second through hole; 313. The third through hole; 32. The second housing; 33. The second sealing ring; 34. The third sealing ring; 35. The second accommodation cavity; 351. The guiding cavity; 352. The communication cavity. Detailed implementation manners

[0041] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present utility model will be further described below with reference to the drawings and through specific implementation manners.

[0042] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0044] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0045] Currently, between the battery pack and the vehicle frame, bolts are usually used to directly fix the battery pack to the frame, thus rigidly connecting the battery pack and the frame as a whole. However, the above-mentioned fixing and installation method of the battery pack causes the vibration and mechanical shock to be directly transmitted to the battery pack when the vehicle is subjected to vibration and mechanical shock, deteriorating the operating conditions of the battery pack, and further reducing the usage experience and service life of the battery pack. In the related art, in order to reduce the vibration and mechanical shock received by the battery pack, a suspension device is adopted to achieve flexible connection between the battery pack and the frame, but this suspension device cannot effectively avoid the vibration and mechanical shock received by the battery pack in all directions.

[0046] To solve the above problems, as Figure 1 and Figure 2 shown, this embodiment provides a battery pack hanging shock-absorbing device, which is used to realize the installation and fixation of the battery pack on the frame. The battery pack hanging shock-absorbing device includes a first connection component 1, a shock-absorbing component 2, and a second connection component 3. Among them, the first end of the first connection component 1 is used to be fixedly connected to one of the frame and the battery pack, the shock-absorbing component 2 is elastically connected to the second end of the first connection component 1 in the vertical direction (the up and down direction in the figure), the second connection component 3 is used to be fixedly connected to the other of the frame and the battery pack, and the second connection component 3 is elastically connected to the shock-absorbing component 2 in the horizontal direction. The battery pack hanging shock-absorbing device provided by this embodiment effectively reduces the mechanical shock and vibration received by the battery pack in the vertical direction and the horizontal direction because the shock-absorbing component 2 is elastically connected to the second end of the first connection component 1 in the vertical direction, and the second connection component 3 is elastically connected to the shock-absorbing component 2 in the horizontal direction, alleviating the impact and vibration from all directions brought by the frame to the battery pack, thereby optimizing the operating conditions of the battery pack and improving the usage experience and service life of the battery pack.

[0047] Optionally, in this embodiment, the first end of the first connection component 1 is used to be fixedly connected to the battery pack, and the second connection component 3 is used to be fixedly connected to the frame. In other embodiments, the first end of the first connection component 1 can also be used to be fixedly connected to the frame, and the second connection component 3 is used to be fixedly connected to the battery pack.

[0048] Optionally, in this embodiment, as Figure 2As shown, a sealed first accommodation cavity 211 is provided inside the shock absorption assembly 2. The first accommodation cavity 211 is filled with damping liquid. The first connection assembly 1 includes a first moving disk 11 and a first elastic member 12. Among them, the first moving disk 11 is located inside the first accommodation cavity 211. The first moving disk 11 can move vertically inside the first accommodation cavity 211. The first elastic member 12 extends vertically. The first elastic member 12 is located inside the first accommodation cavity 211. The first end of the first elastic member 12 is connected to the first moving disk 11, and the second end of the first elastic member 12 is connected to the inner top wall of the first accommodation cavity 211. With the above arrangement, since the first moving disk 11 is elastically connected to the shock absorption assembly 2 vertically through the first elastic member 12 and the damping liquid is filled in the first accommodation cavity 211, when the battery pack is subjected to mechanical shocks and vibrations in the vertical direction by the vehicle frame, the first elastic member 12 can be compressed vertically, thereby buffering the vibrations and mechanical shocks of the battery pack in the vertical direction. And when the first moving disk 11 and the shock absorption assembly 2 move and reset under the action of the elastic restoring force of the first elastic member 12, the damping liquid filled in the first accommodation cavity 211 provides a certain amount of damping for the reset movement of the first moving disk 11 and the shock absorption assembly 2, avoiding the rapid reset of the first moving disk 11 and the shock absorption assembly 2, and further alleviating the mechanical shocks and vibrations of the battery pack in the vertical direction. Optionally, in this embodiment, the damping liquid can be damping oil, such as hydraulic oil. The specific form of the damping liquid is not limited in this embodiment.

[0049] Optionally, in other embodiments, the damping liquid may not be filled in the first accommodation cavity 211. By generating a certain frictional damping between the outer peripheral wall of the first moving disk 11 and the inner peripheral wall of the first accommodation cavity 211, the rapid reset of the first moving disk 11 and the shock absorption assembly 2 can be avoided, and the mechanical shocks and vibrations of the battery pack in the vertical direction can be alleviated.

[0050] Optionally, in this embodiment, as Figure 2 and Figure 3As shown, the outer peripheral wall of the first moving disk 11 is in contact with the inner peripheral wall of the first accommodating cavity 211, and the first moving disk 11 is provided with a through first damping hole 111. With the above arrangement, the first moving disk 11 can buffer and move vertically along the cavity wall of the first accommodating cavity 211, providing a guiding effect for the buffered movement of the first moving disk 11. In addition, the above arrangement enables the first moving disk 11 to divide the first accommodating cavity 211 into an upper accommodating cavity and a lower accommodating cavity arranged in the up-and-down direction, and enables the damping liquid to flow only between the upper accommodating cavity and the lower accommodating cavity through the first damping hole 111, thereby ensuring the damping force when the first moving disk 11 and the shock absorption assembly 2 are reset. Optionally, a plurality of first damping holes 111 are spaced apart on the first moving disk 11. In this embodiment, two first damping holes 111 are spaced apart on the first moving disk 11. In other embodiments, the specific number of the first damping holes 111 can be set according to requirements.

[0051] Optionally, in this embodiment, as Figure 2 shown, the top of the shock absorption assembly 2 is provided with a first through hole 212 communicating with the first accommodating cavity 211. The first connecting assembly 1 further includes a mounting disk 13 and a damping connecting rod 14. Among them, the mounting disk 13 is fixedly connected to the battery pack, the first end of the damping connecting rod 14 is fixedly connected to the mounting disk 13, and the second end of the damping connecting rod 14 passes through the first through hole 212 and extends into the first accommodating cavity 211 to be fixedly connected to the first moving disk 11. Optionally, in this embodiment, a plurality of mounting holes are spaced apart on the mounting disk 13, and bolts are inserted through each mounting hole. The bolts pass through the corresponding mounting holes and are threadedly connected to the mounting bracket of the battery pack, so that the mounting disk 13 can be fixedly connected to the battery pack through the bolts. Optionally, in this embodiment, the outer diameter of the damping connecting rod 14 is adapted to the inner diameter of the first through hole 212, thereby ensuring the airtightness of the first accommodating cavity 211.

[0052] Optionally, in this embodiment, as Figure 2 shown, the first elastic member 12 is a spring, and the spring is sleeved on the damping connecting rod 14. The spring has the advantages of good elastic effect and low cost. In addition, by sleeving the spring on the damping connecting rod 14, the positioning installation of the spring is realized, ensuring the reliability of the first elastic member 12 to expand and contract in the vertical direction. Optionally, in other embodiments, the first elastic member 12 can also be in the form of a shrapnel.

[0053] Optionally, in this embodiment, as Figure 2As shown, the shock absorption assembly 2 includes a first sealing ring 25. The first sealing ring 25 is installed on the inner peripheral wall of the first through hole 212, and the first sealing ring 25 is clamped between the inner peripheral wall of the first through hole 212 and the outer peripheral wall of the damping connecting rod 14. By providing the first sealing ring 25, the tightness of the first accommodating cavity 211 is further ensured, and the damping liquid in the first accommodating cavity 211 is prevented from leaking out. Optionally, in other embodiments, the first sealing ring 25 can also be installed on the outer peripheral wall of the damping connecting rod 14.

[0054] In this embodiment, as Figure 2 and Figure 4 shown, a sealed second accommodating cavity 35 is provided inside the second connection assembly 3. The second accommodating cavity 35 is also filled with damping liquid. The shock absorption assembly 2 includes a first connection column 21, a moving frame 22, a plurality of damping balls 23, and a plurality of second elastic members 24. Among them, a sealed first accommodating cavity 211 is provided inside the first connection column 21, and a first through hole 212 is opened at the top end of the first connection column 21. The moving frame 22 is fixedly connected to the first connection column 21. One end of the moving frame 22 away from the first connection column 21 extends into the second accommodating cavity 35. The plurality of damping balls 23 are all located in the second accommodating cavity 35. The plurality of damping balls 23 are arranged at intervals along the circumferential direction of the moving frame 22, and each damping ball 23 abuts against the outer peripheral wall of the moving frame 22. Each second elastic member 24 extends along the horizontal direction. The plurality of second elastic members 24 are provided in one-to-one correspondence with the plurality of damping balls 23. The first end of the second elastic member 24 is connected to the damping ball 23, and the second end of the second elastic member 24 is connected to the cavity wall of the second accommodating cavity 35. With the above arrangement, since the damping ball 23 is elastically connected to the second connection assembly 3 in the horizontal direction through the corresponding second elastic member 24, and the damping liquid is filled in the second accommodating cavity 35, when the battery pack is subjected to mechanical shocks and vibrations in all horizontal directions by the vehicle frame, the moving frame 22 drives the damping balls 23 on the corresponding side to move, so that the damping balls 23 compress the corresponding second elastic members 24, thereby buffering the vibrations and mechanical shocks of the battery pack in the horizontal direction. And when the moving frame 22 and the damping balls 23 move back to their original positions under the action of the elastic restoring force of the second elastic member 24, the damping liquid filled in the second accommodating cavity 35 provides a certain damping for the moving frame 22 and the damping balls 23 to move back to their original positions, avoiding the moving frame 22 and the damping balls 23 from quickly resetting, and further alleviating the mechanical shocks and vibrations of the battery pack in all horizontal directions. Optionally, in this embodiment, six damping balls 23 are arranged at intervals along the circumferential direction of the moving frame 22, so as to reduce the mechanical shocks and vibrations received by the battery pack in all horizontal directions. In other embodiments, the specific number of damping balls 23 can be set according to requirements. Optionally, in this embodiment, the second elastic member 24 can be a spring, and the spring has the advantages of good elastic effect and low cost. In other embodiments, the second elastic member 24 can also be in the form of a spring sheet.

[0055] Optionally, in other embodiments, the second accommodation cavity 35 may not be filled with damping liquid, and a certain frictional damping is generated between the outer peripheral wall of the damping ball 23 and the inner peripheral wall of the second accommodation cavity 35, so as to prevent the rapid reset of the moving frame 22 and the damping ball 23, and relieve the mechanical shock and vibration in all horizontal directions received by the battery pack.

[0056] Optionally, in this embodiment, as Figure 2 and Figure 4 shown, the second accommodation cavity 35 includes a plurality of communicating guiding cavities 351, and the plurality of guiding cavities 351 are arranged at intervals along the circumferential direction of the moving frame 22. Each guiding cavity 351 extends in the horizontal direction, and each guiding cavity 351 accommodates a second elastic member 24 and a damping ball 23. The second end of the second elastic member 24 is connected to the cavity wall of the guiding cavity 351. The damping ball 23 is provided with a through second damping hole 231, and the outer wall of the damping ball 23 fits against the cavity wall of the corresponding guiding cavity 351, and the damping ball 23 can move horizontally along the cavity wall of the guiding cavity 351. The above setting enables the damping ball 23 to buffer and move horizontally along the cavity wall of the corresponding guiding cavity 351, providing a guiding effect for the buffer movement of the damping ball 23. In addition, the above setting enables the damping ball 23 to divide the corresponding guiding cavity 351 into a first cavity and a second cavity arranged in the horizontal direction, and enables the damping liquid in the guiding cavity 351 to flow only between the first cavity and the second cavity through the second damping hole 231, ensuring the damping force when the damping ball 23 and the moving frame 22 are reset.

[0057] Optionally, in this embodiment, the second accommodation cavity 35 further includes a communicating cavity 352. The plurality of guiding cavities 351 are all communicated with the communicating cavity 352, and the plurality of guiding cavities 351 are arranged at intervals along the circumferential direction of the communicating cavity 352. The moving frame 22 can move in the communicating cavity 352, so as to push the damping ball 23 on the corresponding side to move along the corresponding guiding cavity 351.

[0058] In this embodiment, as Figure 2 and Figure 4 shown, the moving frame 22 includes a second moving disk 221 and a second connecting column 222. The upper end surface of the second moving disk 221 is fixedly connected to the first connecting column 21, and the second connecting column 222 is fixedly connected to the lower end surface of the second moving disk 221. The second connecting column 222 extends into the communicating cavity 352 of the second accommodation cavity 35. The plurality of damping balls 23 are arranged at intervals along the circumferential direction of the second connecting column 222, and the outer peripheral wall of the second connecting column 222 abuts against the plurality of damping balls 23. The above setting enables the column surface of the second connecting column 222 to abut against each damping ball 23, relieving the abutting impact between the second connecting column 222 and the damping ball 23, and improving the protection of the second connecting column 222 and the damping ball 23.

[0059] In this embodiment, as Figure 2 and Figure 4 shown, the second connection component 3 includes a first housing 31 and a second housing 32 that are snap - fixed. The second housing 32 is fixedly connected to the frame. The first housing 31 and the second housing 32 are jointly assembled to form a second accommodation cavity 35. The first housing 31 is provided with a communicating accommodation groove 311 and a second through - hole 312. The second through - hole 312 communicates with the second accommodation cavity 35. The second connecting column 222 passes through the second through - hole 312 and extends into the communicating cavity 352 of the second accommodation cavity 35. The second moving disk 221 is movably accommodated in the accommodation groove 311, and the second moving disk 221 blocks the second through - hole 312. With the above - mentioned arrangement, the second moving disk 221 can move horizontally in the accommodation groove 311, avoiding interference with the horizontal movement of the second moving disk 221. In addition, the second moving disk 221 also blocks the second through - hole 312, ensuring the airtightness of the second accommodation cavity 35. It should be noted that in this embodiment, the first housing 31 and the second housing 32 can be fixedly connected by bolts. Optionally, in this embodiment, a plurality of mounting holes are spaced apart on the second housing 32, and each mounting hole is provided with a bolt. The bolt passes through the corresponding mounting hole and is threadedly connected to the frame, so that the second housing 32 is fixedly connected to the frame by bolts.

[0060] Optionally, in this embodiment, as Figure 2 shown, the inner diameter of the accommodation groove 311 is larger than the outer diameter of the second moving disk 221, thereby avoiding interference of the groove wall of the accommodation groove 311 with the horizontal movement of the second moving disk 221. Optionally, the inner diameter of the second through - hole 312 is larger than the outer diameter of the second connecting column 222, thereby avoiding interference of the hole wall of the second through - hole 312 with the horizontal movement of the second connecting column 222. Optionally, in this embodiment, the first housing 31 is further provided with a third through - hole 313 communicating with the accommodation groove 311. The first connecting column 21 passes through the third through - hole 313 and is fixedly connected to the second moving disk 221 in the accommodation groove 311, and the inner diameter of the third through - hole 313 is larger than the outer diameter of the first connecting column 21, thereby avoiding interference of the hole wall of the third through - hole 313 with the horizontal movement of the first connecting column 21. Optionally, in this embodiment, the accommodation groove 311, the second through - hole 312, and the third through - hole 313 are coaxially arranged.

[0061] Optionally, in this embodiment, as Figure 2As shown, the second connection component 3 further includes a second sealing ring 33. The second sealing ring 33 surrounds the outer periphery of the second accommodation cavity 35, and the second sealing ring 33 is clamped between the first housing 31 and the second housing 32. By providing the second sealing ring 33, the sealing performance of the splicing of the first housing 31 and the second housing 32 is improved, and the tightness of the second accommodation cavity 35 is further ensured.

[0062] Optionally, in this embodiment, as Figure 2 shown, the second connection component 3 further includes two third sealing rings 34. The two third sealing rings 34 are both located in the accommodation groove 311. One of the third sealing rings 34 surrounds the outer periphery of the first connection column 21 and is clamped between the upper end surface of the second moving disk 221 and the inner top wall of the accommodation groove 311. The other third sealing ring 34 surrounds the outer periphery of the second connection column 222 and is clamped between the lower end surface of the second moving disk 221 and the inner bottom wall of the accommodation groove 311. By providing the two third sealing rings 34, the tightness of the second accommodation cavity 35 is further ensured.

[0063] This embodiment also provides a vehicle, which is a new energy vehicle. The vehicle provided in this embodiment includes a vehicle frame, a battery pack, and the above-mentioned battery pack hanging shock absorption device. The battery pack hanging shock absorption device is connected between the vehicle frame and the battery pack. Specifically, the second housing 32 is fixedly connected to the vehicle frame by bolts, and the mounting plate 13 is fixedly connected to the mounting bracket of the battery pack by bolts. The vehicle provided in this embodiment realizes the installation of the battery pack on the vehicle frame by applying the above-mentioned battery pack hanging shock absorption device, effectively reducing the mechanical shock and vibration of the battery pack in the vertical direction and the horizontal direction, alleviating the impact and vibration of the battery pack from the vehicle frame in all directions, optimizing the working conditions of the battery pack, and improving the use experience and service life of the battery pack.

[0064] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A battery pack hanging shock absorbing device, characterized in that: include: A first connecting assembly (1), wherein a first end of the first connecting assembly (1) is used for fixedly connecting to one of a vehicle frame and a battery pack; A shock absorbing assembly (2), wherein the shock absorbing assembly (2) is elastically connected to the second end of the first connecting assembly (1) in a vertical direction; and The second connecting component (3) is used for fixedly connecting to the other of the vehicle frame and the battery pack, and the second connecting component (3) is elastically connected to the shock absorbing component (2) in a horizontal direction.

2. The battery pack mounting shock absorbing device according to claim 1, characterized in that: The damping assembly (2) is provided with a sealed first accommodating chamber (211) inside, the first accommodating chamber (211) is filled with damping fluid, and the first connecting assembly (1) comprises: a first movable plate (11), the first movable plate (11) being located in the first accommodating cavity (211), and the first movable plate (11) being capable of moving along the vertical direction in the first accommodating cavity (211); and A first elastic member (12), the first elastic member (12) extends along the vertical direction, the first elastic member (12) is located in the first accommodating cavity (211), a first end of the first elastic member (12) is connected to the first movable plate (11), and a second end of the first elastic member (12) is connected to an inner top wall of the first accommodating cavity (211).

3. The battery pack mounting shock absorbing device according to claim 2, characterized in that: The outer peripheral wall of the first movable plate (11) is in contact with the inner peripheral wall of the first accommodating cavity (211), and the first movable plate (11) is provided with a penetrating first damping hole (111).

4. The battery pack mounting shock absorbing device according to claim 2, characterized in that: A first through hole (212) communicating with the first accommodating cavity (211) is formed on the top of the shock absorbing component (2), and the first connecting component (1) further comprises: A mounting plate (13) fixedly connected to one of the vehicle frame and the battery pack; A damping connecting rod (14), wherein a first end of the damping connecting rod (14) is fixedly connected to the mounting plate (13), and a second end of the damping connecting rod (14) passes through the first penetration hole (212) and extends into the first accommodating cavity (211) to be fixedly connected to the first movable plate (11).

5. The battery pack mounting shock absorbing device according to claim 4, characterized in that: The first elastic member (12) is a spring, and the spring is sleeved on the damping connecting rod (14).

6. The battery pack hanging shock absorbing device according to any one of claims 2 to 5, characterized in that: The second connecting component (3) is provided with a sealed second accommodating chamber (35) inside, and the second accommodating chamber (35) is also filled with the damping fluid. The shock absorbing component (2) comprises: A first connecting column (21), wherein the first connecting column (21) is provided with a sealed first accommodating cavity (211); A movable frame (22) is fixedly connected to the first connecting column (21), and one end of the movable frame (22) away from the first connecting column (21) extends into the second accommodating cavity (35); a plurality of damping balls (23), wherein the plurality of damping balls (23) are all located in the second accommodating chamber (35), the plurality of damping balls (23) are arranged at intervals along the circumference of the moving frame (22), and each of the damping balls (23) is in contact with an outer peripheral wall of the moving frame (22); and A plurality of second elastic members (24), each of the second elastic members (24) extending along the horizontal direction, the plurality of second elastic members (24) being arranged in one-to-one correspondence with the plurality of damping balls (23), the first end of the second elastic member (24) being connected to the damping ball (23), and the second end of the second elastic member (24) being connected to the cavity wall of the second accommodating cavity (35).

7. The battery pack mounting shock absorbing device according to claim 6, characterized in that: The second accommodating chamber (35) comprises a plurality of guide chambers (351) interconnected with each other. The plurality of guide chambers (351) are arranged at intervals along the circumference of the movable frame (22). Each of the guide chambers (351) extends along the horizontal direction. Each of the guide chambers (351) accommodates the second elastic member (24) and the damping ball (23). The damping ball (23) is provided with a second damping hole (231) extending therethrough. The outer wall of the damping ball (23) is in contact with the corresponding cavity wall of the guide cavity (351), and the damping ball (23) can move along the cavity wall of the guide cavity (351) in the horizontal direction.

8. The battery pack mounting shock absorbing device according to claim 6, characterized in that: The mobile frame (22) comprises: A second movable plate (221) is fixedly connected to the first connecting column (21); and The second connecting column (222) is fixedly connected to the side of the second movable disk (221) away from the first connecting column (21), and the second connecting column (222) extends into the second accommodating cavity (35). The plurality of damping balls (23) are arranged at intervals along the circumference of the second connecting column (222), and the outer peripheral wall of the second connecting column (222) abuts against the plurality of damping balls (23).

9. The battery pack mounting shock absorbing device according to claim 8, characterized in that: The second connecting assembly (3) comprises a first shell (31) and a second shell (32) which are fastened and fixed together, the second shell (32) being fixedly connected to the other of the frame and the battery pack, the first shell (31) and the second shell (32) being assembled together to form the second accommodating cavity (35), the first shell (31) being provided with a communicating accommodating groove (311) and a second through hole (312), the second through hole (312) being communicated with the second accommodating cavity (35), the second connecting column (222) passing through the second through hole (312) and extending into the second accommodating cavity (35), the second movable plate (221) being movably accommodated in the accommodating groove (311), and the second movable plate (221) blocking the second through hole (312).

10. A vehicle, characterized in that: It comprises a vehicle frame, a battery pack and the battery pack hanging shock absorbing device according to any one of claims 1 to 9, wherein the battery pack hanging shock absorbing device is connected between the vehicle frame and the battery pack.

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