Hanging seat, hanging device, battery replacement battery pack and electric vehicle

Abstract

The application provides a hanging seat, a hanging device, a battery pack and an electric vehicle. The hanging seat is used for locking with a hanging part to mount the battery pack on the electric vehicle. The hanging seat comprises a floating mechanism. At least two ends of the floating mechanism are movably connected to the electric vehicle. The floating mechanism has a locking groove which is connected with a threaded part on the hanging part. The battery pack has a plurality of hanging parts, and the chassis has a plurality of floating mechanisms. The hanging parts and the floating mechanisms are connected one by one and can be adjusted by each floating mechanism. The above structure can reduce the overall manufacturing precision of the chassis and the manufacturing precision of the battery pack. In the process of replacing the battery pack, the positioning precision requirement is also reduced, thereby simplifying the production process and improving the production efficiency.

Description

[0001] This application is a divisional application of Chinese invention patent filed on December 31, 2021, with application number 2021116737836 and title "Hook-up base, hook-up device, battery swapping pack and electric vehicle". Technical Field

[0002] This invention relates to a mounting bracket, a mounting device, a battery swapping pack, and an electric vehicle. Background Technology

[0003] The battery pack configurations for existing electric vehicles are generally divided into fixed and swappable types. Fixed battery packs are typically fixed to the vehicle, and the vehicle is the direct charging target during charging. Swappable battery packs, on the other hand, are usually fixed to the electric vehicle's adapter plate through a movable installation method. The battery pack can be removed for individual replacement or charging. After the replaced battery pack has been charged, it is then reinstalled on the vehicle.

[0004] In existing technologies, battery pack replacement methods include manual and automatic approaches. Regardless of the method, when installing the battery on an electric vehicle, the battery pack needs to be locked to the vehicle's adapter chassis. Currently, multiple locking shafts on the battery pack are installed and hooked into locking slots in the locking base on the chassis to connect the battery pack to the electric vehicle. However, the above methods place high demands on the overall manufacturing precision of the chassis and the battery pack, and also require high positioning accuracy during battery pack replacement.

[0005] In existing technologies, battery packs are typically locked to the bottom of electric vehicles using clips. This locking method requires the battery swapping equipment to move the battery pack vertically to a certain height and then horizontally to the locking position during installation. This results in complex structures and high electrical control requirements for the swapping equipment. Furthermore, it necessitates reserving space at the bottom of the electric vehicle for horizontal movement of the battery pack, making its movement susceptible to limitations imposed by the space at the bottom of the electric vehicle. Consequently, the locking control of the battery pack becomes difficult, leading to low battery swapping efficiency. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, such as high difficulty in locking and controlling the battery pack, low battery swapping efficiency, and susceptibility to space limitations at the bottom of the electric vehicle, and to provide a mounting bracket, mounting device, battery swapping pack, and electric vehicle.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A mounting bracket for locking with a mounting member to install a battery pack onto an electric vehicle, the mounting bracket comprising: a floating mechanism, at least two ends of the floating mechanism being movably connected to the electric vehicle;

[0009] The mounting base also includes a fixing mechanism, the floating mechanism is floatingly connected within the fixing mechanism, and the fixing mechanism is fixedly connected to the electric vehicle;

[0010] The fixed mechanism has a floating cavity, and the floating mechanism is located inside the floating cavity and is movably connected to the fixed mechanism.

[0011] The fixing mechanism includes a fixing plate, a limiting plate, and two connecting plates. The two connecting plates are symmetrically arranged at both ends of the fixing plate. The limiting plate is connected to the top of the connecting plate and is used to limit the displacement of the floating mechanism in the vertical direction. The fixing plate, the connecting plate, and the limiting plate together form the floating cavity.

[0012] In this design, the mounting bracket engages with the mounting base via rotation. This method eliminates the need for a large gap between the bracket and the base, ensuring a stable connection and improving the stability of the battery pack connection. Simultaneously, the floating mechanism is movably connected to the electric vehicle at at least two ends, allowing for self-adjustment during battery pack connection and enabling the threaded portion to engage with the locking groove. The battery pack has multiple mounting brackets, and the electric vehicle has multiple floating mechanisms. Each bracket and floating mechanism is connected in a one-to-one correspondence, and all can be adjusted by the self-adjustment of each floating mechanism. This reduces the overall manufacturing precision requirements of the chassis and battery pack, and also lowers the positioning accuracy requirements during battery pack replacement, simplifying the production process and improving efficiency. The floating mechanism is floatingly connected within the fixed mechanism, which protects it from external damage and extends its lifespan. Furthermore, the connection between the floating mechanism and the electric vehicle through the fixed mechanism increases the contact area between the mounting base and the electric vehicle, enhancing the stability of the connection. While protecting the floating mechanism through a fixed mechanism, the floating cavity provides space for the floating mechanism to move, preventing collisions between the fixed and floating mechanisms and extending their service life. The floating cavity, formed by the fixed plate, limiting plate, and two connecting plates, provides the necessary space for the floating body to move. This structural design is easy to manufacture, simple in structure, and low in cost. Specifically, the fixed plate increases the connection area between the mounting bracket and the electric vehicle, improving connection stability. During the insertion of the mounting component into the locking groove, significant upward displacement occurs; the limiting plate prevents this excessive upward displacement from damaging the elastic components, thus extending the floating mechanism's service life. The connecting plates, while connecting the fixed and limiting plates, also restrict the horizontal displacement of the floating body, preventing excessive displacement that could damage the elastic components. This structural design improves the service life of the floating mechanism.

[0013] Preferably, the floating mechanism has a locking groove that engages with a threaded portion on the hook.

[0014] Preferably, the floating mechanism is connected to the electric vehicle via an elastic element.

[0015] In this solution, the aforementioned structural form is adopted. An elastic element enables the floating mechanism to be movably connected to the electric vehicle. When the threaded part is connected to the locking groove, energy can be stored in the elastic element. When the threaded part is removed from the locking groove, the energy stored in the elastic element allows the floating mechanism to return to its original position. Furthermore, during the return process, the elastic element also provides cushioning for the floating mechanism, preventing collisions between the floating mechanism and the electric vehicle that could affect their service life. The connection between the floating mechanism and the electric vehicle via the elastic element allows the floating mechanism to achieve multi-degree-of-freedom movement, increasing its range of motion.

[0016] Preferably, the elastic element is a spring.

[0017] The above-mentioned structural form is adopted in this solution, which has the characteristics of convenient installation, long service life and low cost.

[0018] Preferably, the floating mechanism includes a floating body, and a plurality of elastic elements are respectively connected around the floating body.

[0019] In this solution, the above-mentioned structural form is adopted, with elastic elements connected around the floating body, which improves the stability of the floating body.

[0020] Preferably, the floating mechanism further has a protrusion extending outward from the floating body, and the floating mechanism has a locking groove disposed within the floating body and the protrusion.

[0021] In this solution, the above-mentioned structural form is adopted. By setting the locking groove in the floating mechanism and the protrusion, the depth of the locking groove is increased, which in turn increases the connection area between the locking groove and the threaded part when they mate, thereby achieving a stable connection between the locking groove and the threaded part. The protrusion extends outward from the floating body, so that there is no need for a large gap between the floating mechanism and the fixed mechanism to prevent possible impact between the protrusion and the floating mechanism, thus improving the compactness of the anti-floating mechanism installation structure.

[0022] Preferably, the floating mechanism has a locking groove and a guide hole located at the top and / or bottom of the locking groove.

[0023] In this design, the aforementioned structural form, with a guide hole at the bottom of the locking groove, allows the threaded part to extend into the locking groove and engage with it, thus facilitating the connection between the threaded part and the locking groove. The guide hole at the top of the locking groove reduces interference from the mounting bracket on the movement of the threaded part during the engagement of the locking groove and the threaded part. During rotation, as the threaded part moves upward, its upper end can extend out of the locking groove through the guide hole, preventing damage caused by compression between the threaded part and the mounting bracket, thereby extending the service life of both the threaded part and the locking groove.

[0024] Preferably, the guide hole has a first sliding surface.

[0025] In this solution, the above-mentioned structural form is adopted, which allows the threaded part to easily extend into the locking groove from the guide hole through the first guide surface, and has the characteristic of low resistance; and / or, allows the threaded hole to easily extend out of the locking groove from the guide hole through the first guide surface, and has the characteristic of low resistance.

[0026] Preferably, the bottom of the fixing mechanism has a first through hole, which communicates with the floating cavity and is used to avoid the hanging member.

[0027] In this design, the hook-on component can first extend into the floating cavity through the first through hole, and then extend into the locking groove to engage with it. This structural design facilitates the insertion of the hook-on component into the floating cavity.

[0028] Preferably, the top of the fixing mechanism has a second through hole, which communicates with the first through hole through the floating cavity, and the second through hole is used to avoid the hanging member.

[0029] In this solution, the aforementioned structural form reduces interference from the hook base to the movement of the hook component during the engagement of the locking groove and the hook component. Specifically, during rotation, as the hook component moves upward, its upper end can extend out of the hook base through the second through hole, thus preventing damage caused by squeezing between the hook component and the hook base, and improving the service life of both the hook component and the hook base.

[0030] Preferably, when the mounting base and the mounting member are connected, the locking groove, the first through hole and the second through hole are all penetrated by the mounting member.

[0031] In this solution, the above-mentioned structural form can achieve a stable connection between the locking groove and the threaded part, thereby achieving a stable fit between the mounting base and the mounting piece.

[0032] Preferably, the first through hole is provided on the fixing plate;

[0033] And / or, the second through hole is provided on the limiting plate.

[0034] In this solution, the above-mentioned structural form is adopted, so that while the fixing plate can be connected to the electric vehicle, the first through hole is set on the fixing plate, which facilitates the insertion of the hook into the locking groove and its engagement with the locking groove; and / or, while the limiting plate restricts the displacement of the floating mechanism, the second through hole is set on the limiting plate, which facilitates the insertion of the hook out of the locking groove, prevents the threaded part and the limiting plate from being squeezed and damaged, and improves the service life of the threaded part and the limiting plate.

[0035] Preferably, the fixing plate has a plurality of mounting holes, which are disposed at each corner of the fixing plate for connecting the fixing mechanism to the electric vehicle.

[0036] In this solution, the above-mentioned structure is adopted. The fixing plate is connected to the electric vehicle through mounting holes, and multiple mounting holes are set at each corner of the fixing plate, which improves the connection stability between the fixing plate and the electric vehicle.

[0037] Preferably, there are two limiting plates, which are respectively connected to two connecting plates. Each of the two limiting plates has a groove, and the two grooves correspond to each other to form the second through hole.

[0038] In this solution, the above-mentioned structural form is adopted to ensure that the connection between each limiting plate and each connecting plate is more reliable.

[0039] Preferably, the connecting plate has a connecting hole, and the elastic element is connected to the connecting hole.

[0040] In this solution, the above-mentioned structural form is adopted, which connects to the elastic element through the connecting hole. It has the characteristics of simple connection method and convenient installation. Furthermore, the connecting hole is opened on the connecting plate, which allows gaps to be left between the floating body and the fixed plate and the limiting plate, preventing collisions between the floating body and the fixed plate and the limiting plate, and improving the service life of the floating body, the fixed plate and the limiting plate.

[0041] Preferably, the hook has an external thread, the locking groove has an internal thread, and the external thread is connected to the internal thread so that the battery pack is connected to the floating mechanism.

[0042] The above-mentioned structural form adopted in this solution has the characteristics of high connection repeatability, simple structure, convenient connection and low cost.

[0043] A mounting device includes a mounting element and a mounting base as described above.

[0044] In this solution, the above-mentioned structural form is adopted, and the mounting parts and mounting bases are applied to the mounting device. This can reduce the overall manufacturing precision of the chassis and the battery pack, and the positioning accuracy requirements during battery pack replacement will also be reduced, thereby simplifying the production process and improving production efficiency.

[0045] Preferably, the hook-on component includes a guide portion and a threaded portion, with the guide portion located at the top of the threaded portion.

[0046] In this solution, the above-mentioned structural form is adopted. During the connection between the hanger and the hanger seat, the guide part first extends into the hanger seat to guide the threaded part; then, the threaded part extends into the locking groove to cooperate with the locking groove.

[0047] And / or, the guide part facilitates the extension of the hook into the hook seat, thereby preventing the hook and hook seat from being squeezed and damaged, and improving the service life of the hook and hook seat.

[0048] Preferably, the top end of the guide portion has a second guide surface.

[0049] In this solution, the above-mentioned structural form is adopted, which facilitates the guide part to extend into or out of the hook seat and has the characteristic of low resistance.

[0050] Preferably, the guide portion and the threaded portion are integrally formed.

[0051] In this solution, the above-mentioned structural form is adopted, which has the characteristics of simple structure and convenient processing. Furthermore, the threaded part can move upward with the guide part into the locking groove, and then the threaded part and the locking groove can be matched by external force, which has the characteristics of convenient operation.

[0052] Preferably, the guide portion and the threaded portion are separately provided.

[0053] In this solution, the above-mentioned structure means that if either the guide part or the threaded part is damaged, only the damaged guide part or the threaded part needs to be replaced for normal use, thus reducing the cost of use.

[0054] Preferably, the mounting device further includes a mounting shell, a first engaging member, and a second engaging member. The first engaging member is fixed inside the mounting shell, and the second engaging member is connected to the mounting member. The second engaging member is located inside the mounting shell and can move within the mounting shell to switch between a first state and a second state. In the first state, the first engaging member and the second engaging member are engaged. In the second state, the second engaging member disengages from the first engaging member, and the second engaging member drives the mounting member to rotate.

[0055] In this design, the aforementioned structural form is adopted, with the first engaging member fixed inside the mounting housing. In the first state, the first and second engaging members are engaged, allowing the first engaging member to limit the second engaging member and prevent its rotation. This, in turn, limits the connection of the hanger, improving the stability of the hanger connection. In the second state, under external force, the second engaging member moves upward within the mounting housing, disengaging from the first engaging member. Without the constraint of the first engaging member, the disengaged second engaging member can drive the hanger to rotate. Therefore, in the second state, the rotation of the second engaging member causes the hanger to rotate by an angle before connecting to the hanger base, thus achieving the connection between the battery pack and the hanger base.

[0056] Preferably, the second engaging member includes a mating portion, an elastic portion, and an engaging portion arranged sequentially from top to bottom. The two ends of the elastic portion abut against the mating portion and the engaging portion, respectively, and the lower end of the hook member is connected to the mating portion. In the first state, the engaging portion and the first engaging member are engaged, and the mating portion disengages from the engaging portion. In the second state, the engaging portion disengages from the first engaging member, and the mating portion engages with the engaging portion to enable the engaging portion to drive the mating portion and the hook member to rotate.

[0057] In this design, the aforementioned structure is adopted. In the first state, the engaging part engages with the first engaging member. After engagement, the engaging part cannot rotate due to the constraint of the first engaging member. At this time, under the action of the elastic part, the mating part disengages from the engaging part. In the second state, under the action of an external force, the engaging part moves upward and disengages from the first engaging member, and the mating part extends into the engaging part to engage with it. At this time, driven by the external force, the engaging part can rotate the mating part and the mounting member by an angle and then connect them to the mounting base, realizing the connection between the battery pack and the mounting base.

[0058] A battery swapping pack, the battery swapping pack comprising a battery pack and a mounting device as described above.

[0059] In this solution, the above-mentioned structural form is adopted, and the mounting device is applied to the battery pack. This can reduce the overall manufacturing precision of the chassis and the battery pack, and the positioning accuracy requirements during battery pack replacement are also reduced, thereby simplifying the production process and improving production efficiency.

[0060] Preferably, the battery pack includes a battery pack body and a battery rack, the battery rack being arranged circumferentially along the outer surface of the battery pack body, and the mounting device further includes a mounting shell, the mounting member being connected to the battery pack body and the battery rack respectively through the mounting shell.

[0061] In this solution, the aforementioned structural form is adopted, with the mounting shell connected to both the battery pack body and the battery rack, thereby improving the stability of the battery pack mounted on the chassis. That is, both the mounting bracket on the battery pack body and the mounting shell on the battery rack can be connected to the battery swapping pack, thus enhancing the stability of the battery swapping pack mounted on the chassis.

[0062] Preferably, the battery pack body has a reinforcing beam, the mounting shell passes through the reinforcing beam and is connected to the upper surface of the reinforcing beam through a fixing base located on the side wall of the mounting shell, the bottom of the hook is connected to the mounting shell, the hook passes through the reinforcing beam and the battery pack body, and protrudes from the upper surface of the battery pack body.

[0063] In this design, the aforementioned structural form is adopted, and the connection between the mounting bracket and the battery pack body is achieved through the connection between the fixed base and the internal reinforcing beam of the battery pack body. The portion of the mounting bracket protruding from the upper surface of the battery pack body can be attached to the mounting base, thereby enabling the battery pack body to be mounted on the electric vehicle chassis.

[0064] Preferably, the mounting device further includes a sealing element connected to the end of the mounting shell away from the reinforcing beam, for sealing the battery pack body and the mounting shell. One end of the sealing element extends into the mounting shell and fits against the inner wall of the mounting shell, and the other end of the sealing element is connected to the upper surface of the battery pack body.

[0065] In this solution, the above-mentioned structural form is adopted, and the sealing element prevents external objects from entering the battery pack through the mounting shell, thus affecting the service life of the battery pack.

[0066] Preferably, the mounting housing extends through the battery rack and is connected to the lower surface of the battery rack via a fixing base located at the bottom of the mounting housing, and the hook extends through the battery rack and protrudes from the upper surface of the battery rack.

[0067] In this solution, the above-mentioned structural form is adopted. The mounting base is connected to the lower surface of the battery rack. The tensile force on the mounting shell acts on the lower surface of the battery rack, so that the bolts are not under tension, thereby preventing bolt damage and loosening, and thus improving the reliability of the connection between the battery pack and the electric vehicle chassis.

[0068] An electric vehicle includes a mounting bracket as described above, or the electric vehicle includes a battery swapping pack as described above.

[0069] The positive and progressive effects of this invention are as follows:

[0070] By incorporating a floating mechanism within the mounting bracket, with at least two ends movably connected to the electric vehicle, the mounting member engages with the mounting bracket via rotation. This method eliminates the need for a large gap between the mounting member and the bracket, ensuring stable attachment and improving the stability of the battery pack mounting. Furthermore, the floating mechanism allows for self-adjustment during battery pack mounting, enabling the threaded portion to engage with the locking groove, thus securing the mounting member to the bracket. The battery pack has multiple mounting members, and the electric vehicle has multiple floating mechanisms, with each mounting member and floating mechanism connected in a one-to-one correspondence, all achieved through self-adjustment of each floating mechanism. This structural design reduces the overall manufacturing precision requirements of the chassis and battery pack, and also lowers the positioning accuracy requirements during battery pack replacement, simplifying the production process and improving efficiency. Attached Figure Description

[0071] Figure 1 This is a schematic diagram of the mounting bracket in Embodiment 1 of the present invention;

[0072] Figure 2 This is a first perspective view of the mounting base in Embodiment 1 of the present invention;

[0073] Figure 3 This is a second perspective view of the mounting base in Embodiment 1 of the present invention;

[0074] Figure 4 This is a third perspective view of the mounting base in Embodiment 1 of the present invention;

[0075] Figure 5 This is an exploded view of the mounting bracket in Embodiment 1 of the present invention;

[0076] Figure 6 This is a cross-sectional schematic diagram of the hanging device in Embodiment 2 of the present invention;

[0077] Figure 7 This is a three-dimensional schematic diagram of the first part of the hanging device in Embodiment 2 of the present invention;

[0078] Figure 8 This is a three-dimensional schematic diagram of the second part of the hanging device in Embodiment 2 of the present invention;

[0079] Figure 9 This is a three-dimensional schematic diagram of the third part of the hanging device in Embodiment 2 of the present invention;

[0080] Figure 10 This is a partial exploded view of the mounting device in Embodiment 2 of the present invention;

[0081] Figure 11 This is a partial schematic diagram of the battery pack in Embodiment 3 of the present invention;

[0082] Figure 12 This is a three-dimensional schematic diagram of the first part of the battery swapping pack in Embodiment 3 of the present invention;

[0083] Figure 13 This is a three-dimensional schematic diagram of the second part of the battery swapping pack in Embodiment 3 of the present invention;

[0084] Figure 14 This is a cross-sectional schematic diagram of the middle region of the battery pack in Embodiment 3 of the present invention;

[0085] Figure 15 This is a three-dimensional schematic diagram of the battery swapping pack in Embodiment 3 of the present invention. Detailed Implementation

[0086] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0087] Example 1

[0088] like Figures 1 to 5 As shown, this embodiment 1 provides an electric vehicle 1000, which includes a mounting base 1. The mounting base 1 is used to lock onto a mounting member 2 to mount a battery pack 61 onto the electric vehicle 1000. The mounting base 1 includes a floating mechanism 11, at least two ends of which are movably connected to the electric vehicle 1000. The floating mechanism 11 has a locking groove 111, which engages with a threaded portion 22 on the mounting member 2. Specifically, the mounting member 2 is engaged with the mounting base 1 by rotation. This method eliminates the need for a large gap between the mounting member 2 and the mounting base 1, allowing the mounting member 2 to be stably mounted on the mounting base 1, thus improving the stability of the battery pack 61 mounting. When the battery pack 61 is mounted on the chassis of the electric vehicle 1000, the floating mechanism 11 can self-adjust, allowing the threaded portion 22 to engage with the locking groove 111, thereby enabling the mounting member 2 to be mounted on the mounting base 1. To achieve a stable connection between the battery pack 61 and the electric vehicle 1000, the battery pack 61 is equipped with multiple mounting brackets 2, and the chassis of the electric vehicle 1000 is equipped with floating mechanisms 11 corresponding to each mounting bracket 2. When each mounting bracket 2 is connected to each floating mechanism 11, each floating mechanism 11 can self-adjust to achieve the connection between each mounting bracket 2 and each floating mechanism 11, thereby reducing the installation precision of each floating mechanism 11. This structural approach reduces the overall manufacturing precision of the chassis and the battery pack 61, and also lowers the positioning accuracy requirements during battery pack 61 replacement, thus simplifying the production process and improving production efficiency.

[0089] In practical use, in order to make the floating mechanism 11 stably connected to the electric vehicle 1000, it is preferable that at least two ends of the floating mechanism 11 are symmetrically connected to the electric vehicle 1000.

[0090] To enable at least two ends of the floating mechanism 11 to be movably connected to the electric vehicle 1000, this embodiment utilizes an elastic element 113 for connection. With this structure, the elastic element 113 enables the floating mechanism 11 to be movably connected to the electric vehicle 1000. When the threaded portion 22 is connected to the locking groove 111, energy can be stored in the elastic element 113. When the threaded portion 22 is removed from the locking groove 111, the stored energy in the elastic element 113 allows the floating mechanism 11 to return to its original position. Furthermore, during this return process, the elastic element 113 provides cushioning for the floating mechanism 11, preventing collisions between the floating mechanism 11 and the electric vehicle 1000 that could affect their lifespan. The connection of the floating mechanism 11 to the electric vehicle 1000 via the elastic element 113 allows for multi-degree-of-freedom movement, increasing the range of motion of the floating mechanism 11.

[0091] The elastic element 113 is a spring, which is easy to install, has a long service life, and is low in cost. In other embodiments, the elastic element 113 can be in the form of a disc spring, etc., and the type of elastic element 113 is not limited here.

[0092] The floating mechanism 11 includes a floating body 114, with multiple elastic elements 113 connected around the floating body 114. This structural design improves the stability of the floating body 114.

[0093] In practical use, the two ends of the elastic element 113 are connected to the fixing mechanism 12 and the floating body 114 respectively, and the elastic element 113 can be connected to the electric vehicle 1000 through the fixing mechanism 12.

[0094] The floating mechanism 11 also has a protrusion 112 extending outward from the floating body 114, and a locking groove 111 is disposed within the floating body 114 and the protrusion 112. Specifically, by disposing the locking groove 111 within the floating body 114 and the protrusion 112, the depth of the locking groove 111 is increased, thereby increasing the connection area between the locking groove 111 and the threaded portion 22 when they mate, thus achieving a stable connection between the locking groove 111 and the threaded portion 22. The protrusion 112 extending outward from the floating body 114 eliminates the need for a gap between the lower end of the floating mechanism 11 and the fixing mechanism 12 to prevent impact between the protrusion 112 and the fixing mechanism 12, improving the compactness of the anti-floating mechanism 11's installation structure.

[0095] The floating mechanism 11 also has a guide hole 115, and the guide hole 115 can be positioned in several ways. In the first embodiment, the guide hole 115 is located at the top of the locking groove 111, which reduces interference from the hook seat 1 on the movement of the threaded part 22 during the engagement of the locking groove 111 and the threaded part 22. During rotation, as the threaded part 22 moves upward, its upper end can extend out of the guide hole 115 from the locking groove 111, thus preventing damage caused by compression between the threaded part 22 and the locking groove 111, and improving the service life of the threaded part 22 and the locking groove 111. In the second embodiment, the guide hole 115 is located at the bottom of the locking groove 111, allowing the threaded part 22 to extend into the locking groove 111 from the guide hole 115 and engage with it, thereby facilitating the connection between the threaded part 22 and the locking groove 111. In the third embodiment, guide holes 115 are provided at both the top and bottom of the locking groove 111. The locking groove 111 preferably has guide holes 115 at both the top and bottom. By adopting the above method, the connection between the threaded part 22 and the locking groove 111 is facilitated, while the interference of the hook seat 1 on the movement of the threaded part 22 is reduced, and damage caused by compression between the threaded part 22 and the locking groove 111 is prevented, thereby improving the service life of the threaded part 22 and the locking groove 111.

[0096] The guide hole 115 has a first guide surface 116. With the above structure, in the first embodiment, the first guide surface 116 facilitates the threaded portion 22 extending from the guide hole 115 into the locking groove 111, reducing the resistance of the threaded portion 22 entering the guide hole 115; in the second embodiment, the first guide surface 116 facilitates the threaded portion 22 extending from the guide hole 115 into the locking groove 111, reducing the resistance of the threaded portion 22 extending from the guide hole 115; in the third embodiment, the first guide surface 116 facilitates both the threaded portion 22 extending from the guide hole 115 into the locking groove 111 and extending from the guide hole 115 into the locking groove 111.

[0097] The mounting bracket 1 also includes a fixing mechanism 12, and a floating mechanism 11 is floatingly connected within the fixing mechanism 12. The fixing mechanism 12 is fixedly connected to the electric vehicle 1000. With this structure, the floating mechanism 11 is floatingly connected within the fixing mechanism 12, which protects the floating mechanism 11, reducing external damage and extending its service life. Furthermore, the connection of the floating mechanism 11 to the electric vehicle 1000 via the fixing mechanism 12 increases the contact area between the mounting bracket 1 and the electric vehicle 1000, improving the stability of the connection.

[0098] The fixed mechanism 12 has a floating cavity 125, and the floating mechanism 11 is located in the floating cavity 125 and is movably connected to the fixed mechanism 12. With the above structure, while the fixed mechanism 12 protects the floating mechanism 11, the floating cavity 125 provides space for the floating mechanism 11 to move, preventing collisions between the fixed mechanism 12 and the floating mechanism 11 and improving the service life of both.

[0099] The fixing mechanism 12 has a first through hole 126 at its bottom, which communicates with the floating cavity 125. The first through hole 126 is used to avoid the hanging member 2. This can also be described in another way: under the action of external force, the upper end of the hanging member 2 located on the battery pack 61 can first extend into the floating cavity 125 through the first through hole 126; then, the hanging member 2, extending into the floating cavity 125, continues to move into the locking groove 111 and engages with it. This structural form facilitates the insertion of the hanging member 2 into the floating cavity 125.

[0100] In practical use, the diameter of the first through hole 126 can be larger than the diameter of the guide hole 115 located at the lower end of the floating cavity 125, so that the guide part 21 and the threaded part 22 can be easily inserted.

[0101] The top of the fixing mechanism 12 has a second through hole 124, which communicates with the first through hole 126 through the floating cavity 125. The second through hole 124 is used to avoid the hanger 2. The above description can be expressed in another way: when the threaded part 22 of the hanger 2 is engaged with the locking groove 111, the hanger 2 will move upward. At this time, the upper end of the hanger 2 can extend out of the hanger seat 1 through the second through hole 124, thereby preventing damage caused by compression between the hanger 2 and the hanger seat 1 and improving the service life of the hanger 2 and the hanger seat 1. Furthermore, the fact that the upper end of the hanger 2 can extend out of the hanger seat 1 through the second through hole 124 also allows the threaded part 22 and the locking groove 111 to make full contact, increasing the connection area between the two and thus improving the stability of the connection between the hanger 2 and the hanger seat 1. This allows the battery pack 61 to be stably attached to the electric vehicle 1000.

[0102] In practical use, the protrusion 112 can extend out of the limiting plate 123 through the second through hole 124. This structural form reduces the gap between the limiting plate 123 and the floating body 114, thereby improving the compactness of the hook-and-mount structure 1. Preferably, the diameter of the second through hole 124 is larger than the diameter of the protrusion 112, thus preventing the second through hole 124 from affecting the movement of the protrusion 112.

[0103] When the mounting base 1 and the mounting piece 2 are connected, the locking groove 111, the first through hole 126, and the second through hole 124 are all penetrated by the mounting piece 2. With the above-mentioned structure, the locking groove 111 and the threaded part 22 can be stably connected, thereby achieving a stable fit between the mounting base 1 and the mounting piece 2.

[0104] The fixing mechanism 12 includes a fixing plate 122, a limiting plate 123, and two connecting plates 121. The two connecting plates 121 are symmetrically arranged at both ends of the fixing plate 122. The limiting plate 123 is connected to the top of the connecting plate 121 and is used to limit the vertical displacement of the floating mechanism 11. The fixing plate 122, connecting plate 121, and limiting plate 123 together form a floating cavity 125. Alternatively, the floating cavity 125, which provides space for the floating mechanism 11 to move, is achieved by the enclosure of the fixing plate 122, limiting plate 123, and two connecting plates 121. This structural form is easy to manufacture, simple in structure, and low in cost. The fixing plate 122 is connected to the electric vehicle 1000 by bolts, thus realizing the connection between the fixing mechanism 12 and the electric vehicle 1000. Because the fixing plate 122 increases the connection area between the mounting base 1 and the electric vehicle 1000, the stability of the connection can be improved. During the insertion of the connector 2 into the locking groove 111, the floating body 114 will experience significant upward displacement. The limiting plate 123 can prevent this excessive upward displacement from damaging the elastic element 113, thus extending the service life of the floating mechanism 11. The limiting plate 123 and the fixing plate 122 are connected by a connecting plate 121, which also restricts the horizontal displacement of the floating body 114, preventing excessive displacement that could damage the elastic element 113. This structural design provides the floating mechanism 11 with sufficient space for movement while preventing excessive displacement of the floating body 114, thus protecting both the floating body 114 and the elastic element 113 and extending the service life of the floating mechanism 11.

[0105] The first through hole 126 is provided on the fixed plate 122. This structure allows the fixed plate 122 to connect with the electric vehicle 1000 while simultaneously providing the first through hole 126, facilitating the insertion of the hook-and-mount component 2 into the locking groove 111 for engagement. The second through hole 124 is provided on the limiting plate 123. This structure also allows the limiting plate 123 to restrict the displacement of the floating mechanism 11 while simultaneously providing the second through hole 124, facilitating the extension of the hook-and-mount component 2 out of the locking groove 111. This prevents damage caused by pressure between the threaded portion 22 and the limiting plate 123, thus improving the service life of both the threaded portion 22 and the limiting plate 123.

[0106] The fixing plate 122 has multiple mounting holes 1221, which are located at each corner of the fixing plate 122 for connecting the fixing mechanism 12 to the electric vehicle 1000. With this structure, the fixing plate 122 connects to the electric vehicle 1000 through the mounting holes 1221, and the placement of multiple mounting holes 1221 at each corner of the fixing plate 122 improves the connection stability between the fixing plate 122 and the electric vehicle 1000.

[0107] There are two limiting plates 123, which are respectively connected to two connecting plates 121. Each limiting plate 123 has a groove 1231, and the two grooves 1231 correspond to each other to form a second through hole 124. This structure reduces the connection precision between the limiting plates 123 and the connecting plates 121, ensuring the reliability of the connection between each limiting plate 123 and each connecting plate 121. In other embodiments, there may be only one limiting plate 123, with both ends connected to the two connecting plates 121, and a second through hole 124 formed in the middle of the limiting plate 123.

[0108] In practical use, the fixing plate 122, connecting plate 121, and limiting plate 123 are all plate-shaped structures, and the fixing mechanism 12 can be processed by bending. After bending, the fixing plate 122, connecting plate 121, and limiting plate 123 are integrally formed, which has the characteristics of convenient processing, material saving, and low use cost. Of course, the fixing plate 122, connecting plate 121, and limiting plate 123 can also be set separately, and can be connected by welding or other methods to form a floating mechanism 11.

[0109] The connecting plate 121 has a connecting hole 1211, and the elastic element 113 connects to the connecting hole 1211. This structural form, with the connecting hole 1211 and the elastic element 113, offers a simple connection method and convenient installation. Furthermore, by placing the connecting hole 1211 on the connecting plate 121, gaps are maintained between the floating body 114 and the fixed plate 122 and the limiting plate 123, preventing impacts between the floating body 114 and these components and extending their service life. The size of the gaps between the floating body 114 and the fixed plate 122, and between the floating body 114 and the limiting plate 123, can be adjusted by adjusting the height of the connecting hole 1211.

[0110] The connector 2 has an external thread, and the locking groove 111 has an internal thread. The external thread connects to the internal thread so that the battery pack 61 is connected to the floating mechanism 11. With the above-mentioned structure, the threaded connection has the characteristics of high connection repeatability, simple structure, convenient connection, and low cost.

[0111] Example 2

[0112] like Figures 6 to 10 As shown, this embodiment provides a mounting device 100, which includes a mounting member 2 and a mounting base 1. The mounting member 2 is mounted on a battery pack 61, and the mounting base 1 is mounted on the chassis of an electric vehicle 1000. The mounting member 2 includes a guide portion 21 and a threaded portion 22, with the guide portion 21 located at the top of the threaded portion 22. During the connection between the mounting member 2 and the mounting base 1, the guide portion 21 first extends into the mounting base 1 to guide the threaded portion 22, and then the threaded portion 22 extends into the locking groove 111 to engage with it. Furthermore, the guide portion 21 facilitates the extension of the mounting member 2 from the mounting base 1, preventing compression between the mounting member 2 and the mounting base 1 and thus improving their service life.

[0113] The top end of the guide portion 21 has a second guide surface 211, which facilitates the guide portion 21 to extend into or out of the hook seat 1 and reduces the resistance between the guide portion 21 and the hook seat 1. Specifically, the guide portion 21 is frustum-shaped, and the second guide surface 211 is provided on the side wall of the frustum.

[0114] The guide part 21 and the threaded part 22 are integrally formed, which has the characteristics of simple structure and convenient processing. The threaded part 22 can move upward with the guide part 21 into the locking groove 111, and then the threaded part 22 and the locking groove 111 can be matched by external force, which has the characteristics of convenient operation.

[0115] The guide part 21 and the threaded part 22 are set separately, so that if one of the guide part 21 and the threaded part 22 is damaged, only the damaged guide part 21 and the threaded part 22 need to be replaced to restore normal use, thus reducing the cost of use.

[0116] Taking the integral molding of the guide portion 21 and the threaded portion 22 as an example, the process of attaching the battery pack 61 to the electric vehicle 1000 is described. The fixing plate 122 has a first through hole 126, the limiting plate 123 has a second through hole 124, and guide holes 115 are opened at both the upper and lower ends of the locking groove 111. When the battery pack 61 is attached, the guide portion 21 and the threaded portion 22 will move upward under the action of external force. Since the guide portion 21 is located at the upper end of the threaded portion 22, it enters the mounting base 1 first during the attachment process. That is, under the action of the guide portion 21, the axis of the first through hole 126 and the guide hole 115 located at the lower end of the locking groove 111 coincides. At this time, the guide part 21 enters the locking groove 111 sequentially through the first through hole 126 and the guide hole 115 located at the lower end of the locking groove 111. Driven by the guide part 21, the threaded part 22 also enters the locking groove 111 sequentially through the first through hole 126 and the guide hole 115 located at the lower end of the locking groove 111. In order to ensure that the threaded part 22 and the locking groove 111 can fully cooperate, the hook part 2 rotates under the action of external force, so that while the threaded part 22 is cooperating with the locking groove 111, the guide part 21 and the threaded part 22 continue to move upward. At this time, under the action of the guide part 21, the second through hole 124 and the guide hole 115 located on the locking groove 111 coincide on the axis. Therefore, the guide part 21 can extend out of the hanger 1 through the guide hole 115 and the second through hole 124 located at the upper end of the locking groove 111 in sequence. Under the drive of the guide part 21, part of the threaded part 22 may extend out of the hanger 1. The above method can realize the stable connection between the threaded part 22 and the locking groove 111.

[0117] The mounting device 100 includes a mounting shell 4, a first engaging member 7, and a second engaging member 8. The first engaging member 7 is fixed inside the mounting shell 4, and the second engaging member 8 is connected to the hanger 2. The second engaging member 8 is located inside the mounting shell 4 and can move within the mounting shell 4 to switch between a first state and a second state. In the first state, the first engaging member 7 and the second engaging member 8 are engaged. In the second state, the second engaging member 8 disengages from the first engaging member 7, and the second engaging member 8 drives the hanger 2 to rotate. This can also be specifically described as follows: In the first state, since the first engaging member 7 is fixed inside the mounting shell 4, and the first engaging member 7 and the second engaging member 8 are engaged, the first engaging member 7 can limit the second engaging member 8, preventing it from rotating. That is, the second engaging member 8 prevents the hanger 2 from rotating, ensuring that the hanger 2 is stably connected to the mounting base 1. In the second state, under the action of external force, the second engaging member 8 moves upward and disengages from the first engaging member 7. Without the constraint of the first engaging member 7, the second engaging member 8 can be rotated by the external force, allowing the second engaging member 8 to drive the hanger 2 to rotate, ultimately achieving the rotation angle of the hanger part and connecting it to the hanger seat 1. With the above structural form, the first state is the state in which the threaded part 22 is engaged with the locking groove 111; the second state is the state in which the threaded part 22 is not engaged with the locking groove 111.

[0118] The second engaging member 8 includes a mating part 81, an elastic part 82, and an engaging part 83 arranged sequentially from top to bottom. The two ends of the elastic part 82 abut against the mating part 81 and the engaging part 83, respectively. The lower end of the hook member 2 is connected to the mating part 81. In the first state, the engaging part 83 engages with the first engaging member 7, and the mating part 81 disengages from the engaging part 83. In the second state, the engaging part 83 disengages from the first engaging member 7, and the mating part 81 engages with the engaging part 83, thereby enabling the engaging part 83 to drive the mating part 81 and the hook member 2 to rotate. Specifically, in the first state, since the first engaging member 7 is fixed inside the mounting housing 4, the engaged part 83 cannot rotate due to the restriction of the first engaging member 7. At this time, under the action of the elastic part 82, the mating part 81 disengages from the engaging part 83. In this state, even if an external force is applied, the hook member 2 cannot rotate, thus achieving reliable engagement. In the second state, under the action of external force, the engaging part 83 moves upward, causing it to disengage from the first engaging member 7. The upward-moving engaging part 83 compresses the elastic part 82, achieving engagement between the mating part 81 and the engaging part 83. Simultaneously, driven by the guide part 21, the threaded part 22 enters the locking groove 111. Subsequently, driven by external force, the engaging part 83 rotates, thereby causing the hook member 2 to rotate by an angle, achieving engagement between the threaded part 22 and the locking groove 111. Specifically, the mounting shell 4 may have a clearance hole 5, and the unlocking device can contact the hook member 2 through the clearance hole 5. That is, in the second state, the unlocking device first enables the engaging part 83 to move upward and disengage from the first engaging member 7. Then, the unlocking device drives the mating part 81 and the hook member 2 to rotate through the engaging part 83, thereby achieving the connection between the threaded part 22 and the locking groove 111. After attachment, the unlocking device disengages from the engaging part 83, and the engaging part 83 moves downward under the action of the elastic part 82. After moving downward, the engaging part 83 engages with the first engaging member 7, thus achieving a stable attachment. The clearance hole 5 can be located at the bottom of the mounting shell 4, which facilitates the attachment and removal of the battery pack 61.

[0119] Example 3

[0120] like Figures 11 to 15 As shown, an electric vehicle 1000 is a commercial vehicle such as a heavy-duty truck or a light-duty truck. It includes a battery swapping pack 6, which includes a battery pack 61 and a mounting device 100 as described in Embodiment 2.

[0121] The battery pack 61 includes a battery pack body 611 and a battery frame 612. The battery frame 612 is arranged circumferentially along the outer surface of the battery pack body 611. The mounting shell 4 is connected to both the battery pack body 611 and the battery frame 612. This structural design, with the mounting shell 4 connected to both the battery pack body 611 and the battery frame 612, improves the stability of the battery pack 61 mounted on the chassis. In other words, both the mounting bracket 2 on the battery pack body 611 and the mounting shell 4 on the battery frame 612 can be connected to the battery swapping pack 6, thereby improving the stability of the battery swapping pack 6 mounted on the chassis.

[0122] The battery pack body 611 has a reinforcing beam inside. The mounting shell 4 passes through the reinforcing beam and is connected to the upper surface of the reinforcing beam through a fixing base 3 located on the side wall of the mounting shell 4. The bottom of the hanger 2 is connected to the mounting shell 4. The hanger 2 passes through the reinforcing beam and the battery pack body 611 and protrudes from the upper surface of the battery pack body 611. With the above structure, the connection between the hanger 2 and the battery pack body 611 is achieved through the connection between the fixing base 3 and the reinforcing beam inside the battery pack body 611. The part of the hanger 2 protruding from the upper surface of the battery pack body 611 can be hooked onto the hanger 1, thereby enabling the battery pack body 611 to be hooked onto the chassis of the electric vehicle 1000.

[0123] The mounting assembly also includes a seal 62, which is connected to the end of the mounting shell 4 away from the reinforcing beam. The seal 62 seals the battery pack body 611 and the mounting shell 4. One end of the seal 62 extends into the mounting shell 4 and fits against its inner wall, while the other end connects to the upper surface of the battery pack body 611. This structure seals the gap between the mounting member 2 and the mounting shell 4, preventing external objects from entering the battery pack 61 through the mounting shell 4 and affecting its lifespan.

[0124] In practical use, the seal 62 can be made of rubber. Furthermore, the rubber material of the seal 62 can reduce wear caused by friction between the hook 2 and the seal 62 during rotation.

[0125] The mounting shell 4 penetrates the battery rack 612 and is connected to the lower surface of the battery rack 612 via a fixing base 3 located at the bottom of the mounting shell 4. The hanger 2 penetrates the battery rack 612 and protrudes from the upper surface of the battery rack 612. When the mounting shell 4 and the fixing base 3 are subjected to tension, the fixing base 3 is subjected to an upward tension, while the pressure exerted by the battery rack 612 on the fixing base 3 is downward. This can counteract the upward tension on the fixing base 3, thereby preventing the fixing base 3 from undergoing large deformation and affecting its service life. Furthermore, in the above structure, the bolts can be used only to fix the fixing base 3 and the mounting shell 4 and are not subjected to tension, thereby preventing bolt damage and loosening, and thus improving the reliability of the connection between the battery pack 61 and the electric vehicle 1000 chassis.

[0126] By adopting the technical solution in the above embodiments, the height space under the vehicle chassis is fully utilized. When the battery swapping equipment disassembles the battery pack, the unloaded equipment can directly enter the space under the battery pack without interfering with the bottom of the electric vehicle. Similarly, when installing the battery pack, the equipment carrying the battery pack can also directly enter the space under the vehicle chassis for battery swapping without interfering with the bottom of the electric vehicle. Throughout the process, there is no need to lift the vehicle body, nor is it necessary to create a sunken space or dig a pit for the battery swapping equipment to enter and exit, thus reducing the construction cost, time, and difficulty of the battery swapping station, lowering the requirements for the construction site, and improving the efficiency of battery swapping.

[0127] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A hanger seat, characterized in that, The hanging seat is used for locking with the hanging piece to install the battery pack on the electric vehicle, and the hanging seat comprises: A floating mechanism, at least two ends of the floating mechanism are movably connected to the electric vehicle; The hanging seat further comprises a fixing mechanism, the floating mechanism is movably connected in the fixing mechanism, and the fixing mechanism is fixedly connected to the electric vehicle; The fixing mechanism has a floating cavity, the floating mechanism is located in the floating cavity and movably connected with the fixing mechanism; The fixing mechanism comprises a fixing plate, a limiting plate and two connecting plates, the two connecting plates are symmetrically arranged at two ends of the fixing plate, the limiting plate is connected to the top of the connecting plate and is used for limiting the displacement of the floating mechanism in the vertical direction, and the fixing plate, the connecting plate and the limiting plate enclose the floating cavity; The battery pack is provided with a plurality of the hanging pieces, and the electric vehicle chassis is provided with the floating mechanism corresponding to the hanging piece.

2. The hitch socket of claim 1, wherein, The floating mechanism is connected with the electric vehicle through elastic members.

3. The hitch socket of claim 2, wherein, The elastic member is a spring.

4. The hitch socket of claim 2, wherein, The floating mechanism comprises a floating body, and a plurality of elastic members are connected around the floating body.

5. The hitch socket of claim 4, wherein, The floating mechanism further has a protruding portion extending outward from the floating body, and the floating mechanism has a locking groove arranged in the floating body and the protruding portion.

6. The hitch socket of claim 2, wherein, The connecting plate has a connecting hole, and the elastic member is connected with the connecting hole.

7. The hitch socket of claim 1, wherein, The floating mechanism has a locking groove, and the floating mechanism further has a guide hole located at the top and / or bottom of the locking groove.

8. The hitch socket of claim 7, wherein, The guide hole has a first guide sliding surface.

9. The hitch socket of claim 1, wherein, The fixing plate has a plurality of mounting holes arranged at each corner of the fixing plate for connecting the fixing mechanism to the electric vehicle.

10. The hitch socket of claim 5, wherein, The hanging piece has an external thread, the locking groove has an internal thread, the external thread is connected to the internal thread, and the battery pack is connected to the floating mechanism. The locking groove is connected with the threaded portion on the hanging piece.

11. The hitch socket of claim 5, wherein, The bottom of the fixing mechanism has a first through hole in communication with the floating cavity, and the first through hole is used for avoiding the hanging piece.

12. The hitch socket of claim 11, wherein, The top of the fixing mechanism has a second through hole in communication with the first through hole through the floating cavity, and the second through hole is used for avoiding the hanging piece.

13. The hitch socket of claim 12, wherein, When the hanging seat is connected with the hanging piece, the locking groove, the first through hole and the second through hole are all penetrated by the hanging piece.

14. A hitching device, characterized in that The hanging seat comprises the hanging piece and the hanging seat according to any one of claims 1-13.

15. The hitch assembly of claim 14, wherein, The hanging piece comprises a guide portion and a threaded portion, and the guide portion is arranged at the top end of the threaded portion.

16. The hitch assembly of claim 15, wherein, The top end of the guide portion has a second guide sliding surface. The hanging seat comprises the hanging piece and the hanging seat according to any one of claims 1-13. The hanging piece comprises a guide portion and a threaded portion, and the guide portion is arranged at the top end of the threaded portion. The top end of the guide portion has a second guide sliding surface.

17. The hitch assembly of claim 15, wherein, The guide part and the threaded part are integrally formed; or the guide part and the threaded part are separately arranged.

18. The hitch assembly of claim 14, wherein, The hanging device further comprises a mounting shell, a first engaging member fixed in the mounting shell, and a second engaging member connected with the hanging member and movable in the mounting shell for switching between a first state and a second state. In the first state, the first engaging member and the second engaging member are engaged. In the second state, the second engaging member is disengaged from the first engaging member, and the second engaging member drives the hanging member to rotate.

19. The hitch assembly of claim 18, wherein, The second engaging member comprises a matching part, an elastic part and an engaging part arranged in sequence from top to bottom, the two ends of the elastic part are respectively in abutment with the matching part and the engaging part, and the lower end of the hanging member is connected with the matching part. In the first state, the engaging part and the first engaging member are engaged, and the matching part is disengaged from the engaging part. In the second state, the engaging part is disengaged from the first engaging member, and the matching part cooperates with the engaging part to realize that the engaging part drives the matching part and the hanging member to rotate.

20. A battery pack for battery swap, characterized in that, The battery replacement package comprises a battery package and the hanging device according to any one of claims 14-19.

21. The battery pack of claim 20, wherein, The battery package comprises a battery package body and a battery rack arranged circumferentially along the outer surface of the battery package body, and the hanging device further comprises a mounting shell, and the hanging member is connected with the battery package body and the battery rack through the mounting shell.

22. The battery pack of claim 21, wherein, The battery package body has a reinforcing beam, the mounting shell penetrates the reinforcing beam and is connected with the upper surface of the reinforcing beam through a fixing base located on the side wall of the mounting shell, the bottom of the hanging member is connected with the mounting shell, and the hanging member penetrates the reinforcing beam and the battery package body and protrudes from the upper surface of the battery package body.

23. The battery pack of claim 22, wherein, The hanging device further comprises a sealing member connected to the end of the mounting shell away from the reinforcing beam for sealing the battery package body and the mounting shell, one end of the sealing member extends into the mounting shell and is in abutment with the inner wall of the mounting shell, and the other end of the sealing member is connected with the upper surface of the battery package body. 24.The battery replacement pack of claim 21, wherein, The mounting shell penetrates the battery rack and is connected with the lower surface of the battery rack through a fixing base located on the bottom of the mounting shell, and the hanging member penetrates the battery rack and protrudes from the upper surface of the battery rack.

25. An electric vehicle, characterized by The electric vehicle comprises the hanging seat according to any one of claims 1-13, or the electric vehicle comprises the battery replacement package according to any one of claims 20-24.

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