Frame device and electric vehicle comprising same

Abstract

The utility model discloses a frame device and including the frame device, the frame device includes battery module, locking mechanism and frame component, the frame component is equipped with the entry end that is used for the installation of battery module, and the control end that is connected with the connecting end of battery module and is located far away from the entry end side, after the connecting end and the control end of the battery module are connected, the battery module is fixed to the frame assembly through the locking mechanism, the locking mechanism is arranged on the side, away from the connecting end, of the battery module, and the locking mechanism comprises a handle part and a spring bolt which are used for separating the battery module from the frame assembly. A lock hole which is matched with the spring bolt and is used for the spring bolt to penetrate through is formed in the corresponding position of the frame assembly, and the spring bolt can be driven by a key and moves into the lock hole so as to realize the connection between the battery module and the frame assembly. By means of the design, the key can be rotated at the entering end only through the frame assembly, the battery module is dragged out, the complexity of user operation is reduced through the simple and convenient operation mode, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicles, in particular to a frame device and an electric vehicle comprising the frame device. Background Art

[0002] In the existing electric vehicles, there are some significant defects in the installation of batteries for electric vehicles. Specifically, when removing the battery, it is necessary to rotate the key on the peripheral wall of the tube to separate the battery from the tube, and then take the battery out from the inlet end of the tube; when installing the battery, it is necessary to push the battery in from one end of the tube, and then tighten the key on the peripheral wall of the tube to ensure the tightness of the battery on the tube. Therefore, since the battery is installed in the tube, this design form leads to problems such as inconvenient operation and cumbersome procedures in the process of removing and installing the battery, so this problem needs to be solved urgently. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of inconvenient operation and complicated procedures in the process of disassembling and installing the battery in the prior art, and to provide a frame device and an electric vehicle comprising the frame device.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A frame device, comprising a battery module, a locking mechanism and a frame assembly, wherein the frame assembly is provided with an entry end for installing the battery module, and a control end connected to a connection end of the battery module and located away from the entry end. When the connection end of the battery module is connected to the control end, the battery module is fixed to the frame assembly through the locking mechanism.

[0006] The locking mechanism is arranged on a side of the battery module away from the connection end, and the locking mechanism includes a handle and a locking tongue for detaching the battery module from the frame assembly, and a locking hole adapted to the locking tongue for the locking tongue to pass through is provided at a corresponding position of the frame assembly, and the locking tongue can be driven by a key and moved into the locking hole to achieve the connection between the battery module and the frame assembly.

[0007] In the present technical solution, by arranging the locking mechanism on the side of the battery module away from the connection end, that is, at the entry end when the battery module is installed behind the frame assembly, the user can simply rotate the key at the entry end through the frame assembly and drag the battery module out without having to operate at different positions of the frame assembly. This simple operation method not only reduces the complexity of user operation and improves the user experience, but also improves the stability of the entire frame assembly.

[0008] Preferably, the frame assembly includes a guide rail and the control end, one end of the guide rail is fixedly connected to the control end, the other end forms the entry end and is provided with the lock hole at the entry end, and the extension direction of the guide rail is the same as the installation direction of the battery module.

[0009] In this technical solution, the extension direction of the guide rail is the same as the installation direction of the battery module, so that when installing the battery module, the user only needs to push the battery module along the direction of the guide rail, without the need for additional direction adjustments during the installation process, which simplifies the installation process and makes it more convenient. In addition, this design can also increase the contact area between the battery module and the frame assembly, and can provide a more stable installation platform, which not only makes the installation process smoother, but also ensures the stability of the battery module installed on the frame assembly, reduces the shaking or instability that may occur during and after the installation process, and improves the stability and safety of the operation.

[0010] Preferably, a concave-convex structure is provided on a surface of one side of the guide rail facing the battery module, and the concave-convex structure extends along a setting direction of the guide rail.

[0011] In the present technical solution, the design of the concave-convex structure can not only enhance its own structural strength, increase the wear resistance and pressure resistance of the guide rail surface, and extend the service life of the guide rail, but also form an additional friction surface on the guide rail surface, which can increase the grip between the guide rail and the battery module, help prevent the battery module from sliding or shifting during installation, and improve the stability and reliability of the installation.

[0012] Preferably, the locking mechanism comprises a lock core embedded in the rear cover of the battery module and a lock tongue arranged on the rear cover;

[0013] The moving direction of the lock tongue is perpendicular to the installation direction of the battery module, and / or the axial direction of the lock core is the same as the installation direction of the battery module.

[0014] In this technical solution, the lock core is embedded in the rear cover of the battery module, so that the lock core and the battery module are more tightly and firmly combined, and the moving direction of the lock tongue is perpendicular to the installation direction of the battery module, which can further increase the movement of the lock tongue so that the battery module is connected to the frame assembly Stability, further improving the security of locking. At the same time, the axial direction of the lock core is the same as the installation direction of the battery module, so that when using it, the user only needs to insert the key in the same direction to open or lock the battery module, which is simpler and more convenient to operate, reducing the difficulty of use for users.

[0015] Preferably, the locking mechanism is detachably connected to the rear cover of the battery module via a connector, the connector is arranged in the same direction as the lock tongue and passes through the rear cover of the battery module and the peripheral side wall of the lock core in sequence.

[0016] In this technical solution, by setting the connecting piece, a detachable connection is achieved between the locking mechanism and the rear cover of the battery module, which makes the disassembly and assembly operation more convenient. The setting direction of the connecting piece is the same as the setting direction of the lock tongue, so that the connecting piece can be inserted into the rear cover of the battery module along the direction of the lock tongue. This design can ensure that the connection between the locking mechanism and the battery module is tighter and more stable, and prevent the battery from loosening or falling off during the disassembly and assembly process.

[0017] Preferably, the connecting member includes: a fastener, an elastic member and a butt member, the butt member is penetrated through the circumferential side wall surface of the lock core, the elastic member abuts between the fastener and the butt member, and the fastener embeds the butt member into the circumferential side wall surface of the lock core by compressing the elastic member.

[0018] In the technical solution, the fastener embeds the abutment into the peripheral wall of the lock core by compressing the elastic member. This design can ensure that the connection between the connecting member and the lock core is more firm and stable. Even under vibration or external force, the connecting member is not easy to loosen or fall off, which improves the stability and reliability of the locking mechanism. In addition, the setting of the elastic member can absorb the vibration and impact generated by the locking mechanism during use, reducing damage or failures that may be caused by vibration.

[0019] Preferably, the locking mechanism further comprises elastic columns, which are arranged on both sides of the locking tongue in the radial direction along the installation direction of the battery module to offset the gap between the battery module and the frame assembly.

[0020] In this technical solution, the elastic column can provide additional pressure when the battery module is installed, fill the gap between the battery module and the frame assembly, help reduce looseness, and also have a certain shock-absorbing effect, which can reduce the vibration and impact of the electric vehicle during driving, and prevent the battery module from shaking or making noise during driving, thereby improving the stability and comfort of the entire vehicle.

[0021] Preferably, the elastic column comprises: a ball, a columnar structure and an elastic structure, the ball is arranged at one end of the columnar structure facing the frame assembly, and the elastic structure is arranged inside the columnar structure and sandwiched between the ball and the inner wall surface of the columnar structure;

[0022] A concave-convex structure is provided at a position of the frame assembly corresponding to the elastic column to facilitate compression of the elastic column.

[0023] In this technical solution, the elastic structure can absorb vibration and impact during the driving of the electric vehicle, reducing the impact of vibration caused by uneven roads or other external factors on the frame assembly and the battery module. In addition, the frame assembly with a concave-convex structure can provide more compression space for the elastic column. When the battery module is installed, the elastic column can be compressed by the design of the concave-convex structure to adapt to the gap between the battery module and the frame assembly, ensuring stability and tightness during installation.

[0024] Preferably, the frame device further comprises a buffer pad, and the buffer pad is arranged on a side surface of the control end facing the battery module.

[0025] In the present technical solution, the design of the buffer pad can fill the gap between the lock tongue and the lock hole along the installation direction of the battery module, and provide a certain buffering effect between the battery module and the frame assembly, reducing the vibration transmission caused by road bumps or other external impacts. It not only helps to protect the battery module and the frame assembly, but also prevents the battery module from shaking or making noise during driving, thereby improving the stability and comfort of the electric vehicle.

[0026] An electric vehicle comprises the frame device as described in any one of the above items.

[0027] In this technical solution, the design of the frame device makes it easier to install and remove the battery module in the electric vehicle. The user only needs to operate from the entrance end of the frame assembly to easily turn the key and pull out the battery module, which simplifies the operation process. In addition, the design of the locking mechanism ensures a firm connection between the battery module and the frame assembly, improves the safety of the entire vehicle, and avoids the risk of accidental falling off or damage.

[0028] The positive and progressive effects of the utility model are:

[0029] 1. In the frame device, the locking mechanism is arranged on the side of the battery module away from the connection end, that is, when the battery module is installed behind the frame assembly, it is located at the entry end. In this way, the user can only rotate the key at the entry end through the frame assembly and drag the battery module out without having to operate at different positions of the frame assembly. This simple operation method not only reduces the complexity of user operation and improves the user experience, but also improves the stability of the entire frame assembly.

[0030] 2. In the electric vehicle, the design of the frame device makes it easier to install and remove the battery module in the electric vehicle. The user only needs to operate from the entrance end of the frame assembly to easily rotate the key and pull out the battery module, which simplifies the operation process. In addition, the design of the locking mechanism ensures a firm connection between the battery module and the frame assembly, improves the safety of the entire vehicle, and avoids the risk of accidental falling off or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of a frame device according to a preferred embodiment of the present utility model.

[0032] Figure 2 It is a bottom view of the frame device of the preferred embodiment of the utility model.

[0033] Figure 3 It is a schematic structural diagram of a battery module and a guide rail according to a preferred embodiment of the utility model.

[0034] Figure 4 It is a cross-sectional view of a frame device according to a preferred embodiment of the present utility model.

[0035] Figure 5 It is a partial cross-sectional view of the frame device (battery module and locking mechanism) of a preferred embodiment of the utility model.

[0036] Figure 6 It is a schematic structural diagram of a battery module according to a preferred embodiment of the present utility model.

[0037] Figure 7 It is a structural schematic diagram of a frame assembly of a preferred embodiment of the utility model.

[0038] Figure 8 It is a schematic structural diagram of an elastic column in a preferred embodiment of the utility model.

[0039] Description of reference numerals:

[0040] Frame device 100

[0041] Battery module 11

[0042] Connection terminal 111

[0043] Back cover 112

[0044] Locking mechanism 12

[0045] Handle 121

[0046] Lock tongue 122

[0047] Key 123

[0048] Lock cylinder 124

[0049] Elastic column 125

[0050] Round beads 1251

[0051] Columnar structure 1252

[0052] Frame assembly 13

[0053] Enter terminal 131

[0054] Control terminal 132

[0055] Controller 1321

[0056] Guide Rail 133

[0057] Keyhole 1331

[0058] Concave and convex structure 1332

[0059] Connector 14

[0060] Fasteners 141

[0061] Elastic member 142

[0062] Abutment 143

[0063] Cushion 15

[0064] Battery module installation direction X DETAILED DESCRIPTION

[0065] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0066] like Figure 1-Figure 8 As shown, this embodiment discloses a frame device 100 in an electric vehicle, wherein the frame device 100 includes a battery module 11, a locking mechanism 12 and a frame assembly 13, wherein an entry end 131 and a control end 132 are provided on the frame assembly 13, specifically: the entry end 131 is an end for installing the battery module 11, and the control end 132 is located on a side away from the entry end 131 for connecting with the connection end 111 of the battery module 11 to realize the normal power storage function of the battery module 11.

[0067] In addition, the locking mechanism 12 is arranged on the side of the battery module 11 away from the connection end 111, and the locking mechanism 12 specifically includes a handle portion 121 and a locking tongue 122. The handle portion 121 is used for the user to take the battery module 11 away from the frame assembly 13, and a locking hole 1331 adapted to the locking tongue 122 for the locking tongue 122 to pass through is provided at a corresponding position of the frame assembly 13.

[0068] After the connection end 111 of the battery module 11 and the control end 132 of the frame assembly 13 are connected, the battery module 11 is fixed to the frame assembly 13 through the locking mechanism 12, that is, the lock tongue 122 is driven by the key 123 to move to the lock hole 1331 to achieve the connection between the battery module 11 and the frame assembly 13.

[0069] Specifically, when installing the battery module 11: push the battery module 11 into the vehicle frame assembly 13 from the entry end 131 (specifically, the installation direction X of the battery module can be seen in FIG. Figure 1 As shown), the connection end 111 of the battery module 11 and the control end 132 of the frame assembly 13 are connected. After the two are connected, the locking mechanism 12 is used at the entry end 131 of the frame assembly 13, that is, the same side of the frame assembly 13, that is, the key 123 is manually rotated, and the lock tongue 122 is pressed so that the lock tongue 122 moves downward and is embedded in the lock hole 1331 of the frame assembly 13 to achieve a fastened connection between the battery module 11 and the frame assembly 13, ensuring that the battery module 11 will not be separated from the frame assembly 13 when the electric vehicle is running to ensure the normal operation of the electric vehicle.

[0070] When disassembling the battery module 11: the user first manually rotates the key 123 at the entry end 131 of the frame assembly 13 to disengage the lock tongue 122 from the lock hole 1331 so that the battery module 11 is disengaged from the frame assembly 13, and then takes the handle 121 of the locking mechanism 12 to drag the battery module 11 out of the frame assembly 13, thereby achieving the disassembly of the battery module 11.

[0071] In this embodiment, by setting the locking mechanism 12 on the side of the battery module 11 away from the connection end 111, that is, when the battery module 11 is installed behind the frame assembly 13, it is located at the entry end 131, so that the user can only rotate the key 123 at the entry end 131 through the frame assembly 13 and drag out the battery module 11, without having to operate at different positions of the frame assembly 13. This simple operation method reduces the complexity of user operation and improves the user experience. In addition, under the premise that the space size or overall size of the frame device 100 for installing the battery module 11 remains unchanged, the structural size of the controller 1321 and / or the guide rail 133 can also be appropriately reduced to adapt to the assembly method of the new battery module 11 and the locking mechanism 12, so as to ensure that the battery module 11 can be smoothly installed on the frame assembly 13 to ensure the normal operation of the electric vehicle.

[0072] like Figure 7As shown, the frame assembly 13 specifically includes a guide rail 133, a control end 132 and an entry end 131, wherein one end of the guide rail 133 is fixedly connected to the control end 132, and the other end of the guide rail 133 forms an entry end 131 and is provided with a lock hole 1331 at the entry end 131, and the extension direction of the guide rail 133 is the same as the installation direction X of the battery module, so that when the user installs the battery module 11, he only needs to push the battery module 11 along the direction of the guide rail 133, and no additional direction adjustment is required during the installation process, which simplifies the installation process and makes it more convenient. In addition, such a design can also increase the contact area between the battery module 11 and the frame assembly 13, and can provide a more stable installation platform, which not only makes the installation process more stable, but also ensures the stability of the battery module 11 installed on the frame assembly 13, reduces the factors such as shaking or instability that may occur during and after the installation, and improves the stability and safety of the operation.

[0073] And in this embodiment, if Figure 7 As shown, a controller 1321 connected to the connection terminal 111 of the battery module 11 is provided in the control terminal 132 to ensure the normal discharge function of the electric vehicle.

[0074] In addition, a wave-like concave-convex structure 1332 is provided on the surface of one side of the guide rail 133 facing the battery module 11, and the concave-convex structure 1332 extends along the setting direction of the guide rail 133, that is, it runs through the entire surface of the guide rail 133. In this embodiment, the height of the outer side of the concave-convex structure 1332 in the horizontal direction is higher than the height of the middle inner side, so that the cross section of the guide rail 133 forms a "concave" shape. This design can not only enhance its own structural strength, but also increase the wear resistance and pressure resistance of the surface of the guide rail 133, and extend the service life of the guide rail 133. It can also form an additional friction surface on the surface of the guide rail 133, which can increase the grip between the guide rail 133 and the battery module 11, which helps to prevent the battery module 11 from sliding or shifting during the installation process, and improves the stability and reliability of the installation. In other embodiments, the specific structural form of the concave-convex structure 1332 can be set as needed to meet the structural strength requirements of the guide rail 133 when carrying the battery module 11, and all belong to the protection scope of this application.

[0075] like Figure 3 , Figure 5-Figure 6 As shown, the locking mechanism 12 specifically includes a lock core 124 and a lock tongue 122, wherein the lock core 124 is embedded in the rear cover 112 of the battery module 11, and the axial direction of the lock core 124 is the same as the installation direction X of the battery module. At the same time, the lock tongue 122 is also provided on the rear cover 112 of the battery module 11, and the moving direction of the lock tongue 122 is perpendicular to the installation direction X of the battery module.

[0076] In this embodiment, the above-mentioned structural form is adopted, which is more in line with the spatial layout inside the frame assembly 13, that is, the lock core 124 is embedded in the rear cover 112 of the battery module 11, which can make the lock core 124 and the battery module 11 more tightly and firmly combined, and the moving direction of the lock tongue 122 is perpendicular to the installation direction of the battery module 11, which can further increase the movement of the lock tongue 122 so that the stability of the battery module 11 connected to the frame assembly 13 is further improved, and the safety of locking is further improved. At the same time, the axial direction of the lock core 124 is the same as the installation direction of the battery module 11, so that when using it, the user only needs to insert the key 123 in the same direction to open or lock the battery module 11, which is simpler and more convenient to operate, reducing the difficulty of use for users.

[0077] In other embodiments, the specific structural forms of the lock core 124 and the lock tongue 122 can be set as needed to meet the spatial structure inside the frame assembly 13 and ensure that the battery module 11 can be firmly set on the guide rail 133, all of which are within the protection scope of this application.

[0078] like Figure 5 As shown, the locking mechanism 12 is detachably connected to the rear cover 112 of the battery module 11 through the connecting member 14. The setting direction of the connecting member 14 is the same as the setting direction of the lock tongue 122 and is sequentially penetrated through the rear cover 112 of the battery module 11 and the peripheral side wall of the lock core 124. Through the setting of the connecting member 14, a detachable connection is achieved between the locking mechanism 12 and the rear cover 112 of the battery module 11, which can be more convenient for disassembly and assembly. The setting direction of the connecting member 14 is the same as the setting direction of the lock tongue 122, so that the connecting member 14 can be penetrated to the rear cover 112 of the battery module 11 along the direction of the lock tongue 122. This design can ensure that the connection between the locking mechanism 12 and the battery module 11 is tighter and more stable, and prevent loosening or falling off during the process of battery disassembly and assembly.

[0079] Specifically, the connecting member 14 includes: a fastener 141, an elastic member 142 and an abutting member 143. The abutting member 143 is inserted into the peripheral side wall of the lock core 124, and the elastic member 142 abuts between the fastener 141 and the abutting member 143. Therefore, the fastener 141 embeds the abutting member 143 into the peripheral side wall of the lock core 124 by compressing the elastic member 142. This design can ensure that the connection between the connecting member 14 and the lock core 124 is more firm and stable. Even under vibration or external force, the connecting member 14 is not easy to loosen or fall off, thereby improving the stability and reliability of the locking mechanism 12. In addition, the setting of the elastic member 142 can absorb the vibration and impact generated by the locking mechanism 12 during use, reducing damage or failures that may be caused by vibration.

[0080] In other embodiments, the battery module 11 and the locking mechanism 12 may be configured as an integrated device, so that no additional fastening components are required to connect the two. Such a design may also increase the structural strength to a certain extent and improve the service life of each component.

[0081] like Figure 4 As shown, the locking mechanism 12 further includes an elastic column 125, which is arranged on both sides of the locking tongue 122 in the radial direction along the installation direction of the battery module 11, that is, located on the left and right sides of the installation direction of the battery module 11, so as to offset the gap between the battery module 11 and the frame assembly 13. The elastic column 125 can provide additional pressure when the battery module 11 is installed, fill the gap between the battery module 11 and the frame assembly 13, help reduce looseness, and also have a certain shock absorption effect, which can reduce the vibration and impact of the electric vehicle during driving and reduce noise, and prevent the battery module 11 from shaking or making noise during driving, thereby improving the stability and comfort of the whole vehicle.

[0082] like Figure 8 As shown, the elastic column 125 specifically includes: a ball 1251, a columnar structure 1252 and an elastic structure (not shown in the figure), wherein the ball 1251 is arranged on one end of the columnar structure 1252 facing the frame assembly 13, i.e., facing the guide rail 133, and the elastic structure is arranged inside the columnar structure 1252 and clamped between the ball 1251 and the inner wall surface of the columnar structure 1252.

[0083] At the same time, the above-mentioned concave-convex structure 1332 is provided at the position of the frame assembly 13 corresponding to the elastic column 125 to facilitate the compression of the elastic column 125.

[0084] Specifically, when the battery module 11 is not installed on the frame assembly 13, the ball 1251 of the elastic column 125 protrudes from the side surface of the battery module 11 facing the frame assembly 13, that is, facing the guide rail 133. After the battery module 11 is installed on the guide rail 133, at least part of the ball 1251 is pushed back into the columnar structure 1252 to offset the gap between the battery module 11 and the frame assembly 13.

[0085] Therefore, the elastic structure can absorb vibration and impact during the driving of the electric vehicle, and reduce the impact of vibration caused by uneven roads or other external factors on the frame assembly 13 and the battery module 11. In addition, the frame assembly 13 with the concave-convex structure 1332 can provide more compression space for the elastic column 125. When the battery module 11 is installed, the elastic column 125 can be compressed by the design of the concave-convex structure 1332, thereby adapting to the gap between the battery module 11 and the frame assembly 13, ensuring stability and tightness during installation.

[0086] like Figure 7 As shown, the frame device 100 also includes a buffer pad 15, which is arranged on a side surface of the control end 132 facing the battery module 11. The design of the buffer pad 15 can fill the gap between the lock tongue 122 and the lock hole 1331 along the installation direction of the battery module 11, and provide a certain buffering effect between the battery module 11 and the frame assembly 13, reducing the vibration transmission caused by road bumps or other external impacts, which not only helps to protect the battery module 11 and the frame assembly 13, but also prevents the battery module 11 from shaking or making noise during driving, thereby improving the stability and comfort of the electric vehicle.

[0087] This embodiment also discloses an electric vehicle, which includes the frame device 100 described above. The design of the frame device 100 makes it easier to install and remove the battery module 11 in the electric vehicle. The user only needs to operate from the entry end 131 of the frame assembly 13 to easily rotate the key 123 and pull out the battery module 11, which simplifies the operation process. In addition, the design of the locking mechanism 12 ensures a firm connection between the battery module 11 and the frame assembly 13, improves the safety of the entire vehicle, and avoids the risk of accidental falling off or damage.

[0088] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A frame device, comprising a battery module, a locking mechanism and a frame assembly, wherein the frame assembly is provided with an entry end for installing the battery module, and a control end connected to the connection end of the battery module and located away from the entry end, and when the connection end of the battery module is connected to the control end, the battery module is fixed to the frame assembly through the locking mechanism, characterized in that: The locking mechanism is arranged on a side of the battery module away from the connection end, and the locking mechanism includes a handle and a locking tongue for detaching the battery module from the frame assembly, and a locking hole adapted to the locking tongue for the locking tongue to pass through is provided at a corresponding position of the frame assembly, and the locking tongue can be driven by a key and moved into the locking hole to achieve the connection between the battery module and the frame assembly.

2. The frame device according to claim 1, characterized in that: The frame assembly includes a guide rail and the control end, one end of the guide rail is fixedly connected to the control end, the other end forms the entry end and is provided with the lock hole at the entry end, and the extension direction of the guide rail is the same as the installation direction of the battery module.

3. The frame device according to claim 2, characterized in that: A concave-convex structure is provided on a surface of one side of the guide rail facing the battery module, and the concave-convex structure extends along the setting direction of the guide rail.

4. The frame device according to claim 1, characterized in that: The locking mechanism comprises a lock core embedded in the rear cover of the battery module and a lock tongue arranged on the rear cover; The moving direction of the lock tongue is perpendicular to the installation direction of the battery module, and / or the axial direction of the lock core is the same as the installation direction of the battery module.

5. The frame device according to claim 4, characterized in that: The locking mechanism is detachably connected to the rear cover of the battery module via a connecting piece. The setting direction of the connecting piece is the same as the setting direction of the lock tongue and penetrates the rear cover of the battery module and the peripheral side wall of the lock core in sequence.

6. The frame device according to claim 5, characterized in that: The connecting member includes: a fastener, an elastic member and a butt member, the butt member is penetrated on the peripheral side wall surface of the lock core, the elastic member abuts between the fastener and the butt member, and the fastener embeds the butt member into the peripheral side wall surface of the lock core by compressing the elastic member.

7. The frame device according to claim 1, characterized in that: The locking mechanism further includes elastic columns, which are arranged on both sides of the locking tongue in the radial direction along the installation direction of the battery module to offset the gap between the battery module and the frame assembly.

8. The frame device according to claim 7, characterized in that: The elastic column comprises: a ball, a columnar structure and an elastic structure, wherein the ball is arranged at one end of the columnar structure facing the frame assembly, and the elastic structure is arranged inside the columnar structure and sandwiched between the ball and the inner wall surface of the columnar structure; A concave-convex structure is provided at a position of the frame assembly corresponding to the elastic column to facilitate compression of the elastic column.

9. The frame device according to claim 1, characterized in that: The frame device further comprises a buffer pad, which is arranged on a surface of one side of the control end facing the battery module.

10. An electric vehicle, characterized in that: The electric vehicle comprises the frame device according to any one of claims 1-9.

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