A bra device and power supply system

Abstract

This invention relates to the field of energy storage technology, specifically to a base support device and a power supply system. The base support device includes a seat assembly, an electrical connection assembly, and a protective assembly. The electrical connection assembly is disposed on the seat assembly; the protective assembly is rotatably disposed on the electrical connection assembly; a transmission assembly includes a first transmission unit and a second transmission unit; the first transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly; the second transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly; the first transmission unit can be moved under force to drive the protective assembly to rotate away from the electrical connection assembly; the second transmission unit can drive the protective assembly to rotate close to the electrical connection assembly, and the protective assembly and the electrical connection assembly together form a shielding space. This solves the problem that existing base supports requiring an active drive source to operate the shielding mechanism for blocking electrical outlets need to be activated to block or de-block.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and more specifically, to a base device and a power supply system. Background Technology

[0002] With the increasing popularity of electric heavy trucks, and because electric heavy trucks have long charging times, they often need to replace their batteries to replenish energy. After the battery is removed, it needs to be supported and installed using a base support device to complete the charging and discharging operation.

[0003] Since the base needs to have an electrical connection mechanism that is electrically connected to the battery, a shielding mechanism is required on the base to shield the mechanism in order to ensure that the mechanism can be used normally. However, existing shielding mechanisms often require an active power output source to be installed on the base to drive the shielding mechanism to move it closer to or away from the electrical connection mechanism. However, since the active power output source cannot be guaranteed to work normally every time it is used, it is easy to cause the shielding mechanism to fail to open normally. Summary of the Invention

[0004] To address the issue that existing mechanisms for blocking electrical outlets on base trays require an active drive source to operate, the present invention provides a base tray device and a power supply system:

[0005] In a first aspect, the present invention provides a base device, comprising:

[0006] Seat assembly;

[0007] An electrical connection assembly is disposed on the base assembly;

[0008] A protective component, which is rotatably mounted on an electrical connection component;

[0009] A transmission assembly, comprising a first transmission unit and a second transmission unit; the first transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly; the second transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly.

[0010] The first transmission unit can be moved by force to drive the protective component to rotate away from the electrical connection component; the second transmission unit can drive the protective component to rotate to be close to the electrical connection component, and the protective component and the electrical connection component together form a shielding space.

[0011] Optionally, the seat assembly includes a frame unit and a guide unit; the guide unit is disposed on the frame unit; and the electrical connection assembly is disposed on the frame unit.

[0012] Optionally, the guiding unit includes a plurality of first guiding portions and a plurality of second guiding portions, all of which are connected to the frame unit. Each first guiding portion includes a guiding section and a limiting section. The limiting section is connected to the frame unit, and the end of the limiting section away from the frame unit is connected to the guiding section. All of the plurality of second guiding portions are connected to the frame unit.

[0013] Optionally, the electrical connection assembly includes a floating unit and a first connector unit; the floating unit is connected to the frame unit; the first connector unit is disposed on the floating unit; the first transmission unit and the second transmission unit are both disposed on the floating unit.

[0014] Optionally, the floating unit includes a support portion and a buffer portion, the support portion being spaced apart from the frame unit; the buffer portion is disposed between the support portion and the frame unit, with both ends of the buffer portion connected to the support portion and the frame unit respectively, and the first transmission unit and the second transmission unit being disposed on the support portion.

[0015] Optionally, the protective component includes a protective part and a connecting part, the connecting part and the supporting part being rotatably connected; the protective part is connected to the end of the connecting part away from the supporting part; the protective part can be rotated to above the first connector unit and shield it.

[0016] Optionally, the first transmission unit includes a force-receiving part, an active part, a driven part, and a first elastic part. The force-receiving part is slidably disposed between itself and the support part. The first elastic part is connected to the support part and the force-receiving part. The active part is rotatably disposed between itself and the support part, and the active part is located below the force-receiving part, abutting against the force-receiving part. The driven part is rotatably disposed between itself and the support part, and the driven part is connected to the connecting part. The driven part and the connecting part are coaxially disposed, and the driven part and the active part are connected by transmission. The force-receiving part is located below the guide section. The driven part can drive the protective part to rotate until the included angle between the protective part and the support part is greater than 90°. The force-receiving part includes a pushing section and a sliding section. The pushing section is connected to the sliding section, and the pushing section is located at the end of the sliding section near the active part. The pushing section can move to abut against the active part. The sliding section can move to slide and fit against the active part.

[0017] Optionally, the second transmission unit includes a first transmission part, a second transmission part, and a second elastic part; the first transmission part and the second transmission part are spaced apart, and both the first transmission part and the second transmission part are rotatably connected to the support part, and the first transmission part and the second transmission part are connected by a transmission belt; the first transmission part is coaxially connected to the driven part, the second elastic part is disposed on the support part, and the second elastic part is connected to the transmission belt through a mounting part.

[0018] Optionally, it also includes a reverse transmission unit; the protective components are configured as two sets; both sets of the protective components can rotate to the top of the support, and the two sets of the protective components rotate in the opposite direction to when they are close to the first connector unit; one set of the protective components is connected to the first transmission unit, and the other set of the protective components is connected to the second transmission unit through the reverse transmission unit.

[0019] In a second aspect, the present invention provides a power supply system, the power supply system comprising a base support device as described in any of the first aspects; the power supply system comprising:

[0020] A battery assembly includes a housing unit, a cell unit, and a second connector unit. The cell unit is disposed inside the housing unit and connected to the inner wall of the housing unit. The second connector unit is fixedly disposed inside the housing unit and located below the cell unit. The second connector unit is electrically connected to the cell unit and to the electrical connection assembly. The housing unit can be moved downwards to abut against the first transmission unit.

[0021] Optionally, the base device has a first guide portion, which includes a guide section and a limiting section; the outer shell unit is movable to abut against the guide section, and the outer shell unit is movable to slide in contact with the limiting section.

[0022] To address the issue that existing mechanisms for blocking electrical outlets on base trays require an active drive source to operate in order to block or unblock them, this invention offers the following advantages:

[0023] When the device cancels or completes the obstruction of the electrical connection component by the protective component, it does not require an external drive source to directly drive the protective component to rotate. Instead, when subjected to external force, the first transmission unit moves downward to drive the protective component to cancel the obstruction of the electrical connection. This effectively reduces the situation where the protective component cannot be opened normally due to problems with the active drive source, thereby effectively improving the stability during use. Attached Figure Description

[0024] Figure 1A schematic diagram of the structure of a base support device according to one embodiment is shown;

[0025] Figure 2 A schematic diagram of the structure of the base support device in a shielded state according to one embodiment is shown;

[0026] Figure 3 A partially enlarged structural schematic diagram of point A in the base support device of one embodiment is shown;

[0027] Figure 4 A schematic diagram of the structure of the base support device in an unobstructed state according to one embodiment is shown;

[0028] Figure 5 A schematic diagram of the power supply system of one embodiment is shown.

[0029] Reference numerals: 10, seat assembly; 11, frame unit; 12, guide unit; 121, first guide section; 1211, guide segment; 1212, limiting segment; 122, second guide section; 13, limiting unit; 20, electrical connection assembly; 21, floating unit; 211, support section; 212, buffer section; 22, first connector unit; 30, protective assembly; 31, protective section; 32, connecting section; 40, transmission assembly; 41, first transmission... Unit; 411, Force-receiving part; 4111, Pushing section; 4112, Sliding section; 412, Active part; 413, Driven part; 414, First elastic part; 42, Second transmission unit; 421, First transmission part; 422, Second transmission part; 423, Transmission belt; 424, Second elastic part; 425, Mounting part; 43, Reverse transmission unit; 50, Battery assembly; 51, Cell unit; 52, Housing unit; 53, Second connector unit. Detailed Implementation

[0030] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0031] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0032] Example 1:

[0033] This embodiment discloses a base support device, such as Figure 1As shown, the base device includes a base assembly 10, an electrical connection assembly 20, a protective assembly 30, and a transmission assembly 40. The electrical connection assembly 20 is mounted on the base assembly; the protective assembly 30 is rotatably mounted on the electrical connection assembly 20; that is, the protective assembly 30 can rotate to be close to the electrical connection and, together with the electrical connection assembly 20, form a shielding space to shield the electrical connection assembly 20; the transmission assembly 40 is mounted on the electrical connection assembly 20 and is drive-connected to the protective assembly 30, wherein the transmission assembly 40 includes a first transmission unit 41 and a second transmission unit 42. The first transmission unit 41 is mounted on the electrical connection assembly 20 and is drive-connected to the protective assembly 30; the second transmission unit 42 is mounted on the electrical connection assembly 20 and is drive-connected to the protective assembly 30; that is, when the battery assembly 50 moves downward to abut against the first transmission unit 41, the transmission unit 42... When the first transmission unit 41 is subjected to an external force, it moves downward, thereby driving the protective component 30 to rotate away from the electrical connection component 20, thus removing the obstruction of the electrical connection component 20 and facilitating the installation of the battery component 50 and the electrical connection component 20. The second transmission unit 42 can then drive the protective component 30 to rotate in the opposite direction to reset, thereby completing the obstruction of the electrical connection component 20. When the device removes or completes the obstruction of the electrical connection component 20 through the protective component 30, it does not require an external drive source to directly drive the protective component 30 to rotate. Instead, when subjected to an external force, the first transmission unit 41 moves downward to drive the protective component 30 to remove the obstruction of the electrical connection. This effectively reduces the possibility of the protective component 30 failing to open properly due to problems with the active drive source, thereby effectively improving the stability during use.

[0034] Furthermore, such as Figure 1 As shown, the base assembly 10 includes a frame unit 11 and a guide unit 12. The guide unit 12 is disposed on the frame unit 11; the electrical connection assembly 20 is disposed on the frame unit 11. The frame unit 11 can effectively complete the installation of the electrical connection assembly and the support of the battery assembly 50. Furthermore, the guide unit 12 can effectively facilitate the accurate installation of the base support device in conjunction with the battery assembly 50.

[0035] Furthermore, such as Figure 2As shown, the guide unit 12 includes multiple first guide portions 121 and multiple second guide portions 122. Each of the multiple first guide portions 121 is connected to the frame unit 11. Each first guide portion 121 includes a guide section 1211 and a limiting section 1212. The limiting section 1212 is connected to the frame unit 11, and the end of the limiting section 1212 away from the frame unit 11 is connected to the guide section 1211. Through the function of the multiple guide sections 1211, the battery assembly 50 can cooperate with the inner wall of the outer casing unit 52 when it moves downwards, thereby guiding the movement of the outer casing unit 52 and providing precise guidance to ensure installation in the correct direction. Each of the multiple second guide portions 122 is connected to the frame unit 11. The second guide portions 122 can further guide the battery assembly 50; that is, the outer casing unit 52 has a first mating part that cooperates with the second guide portions 122, thereby effectively improving the accuracy of battery assembly 50 installation.

[0036] In some embodiments, the seat assembly 10 further includes a limiting unit 13. The limiting unit 13 includes a fixing part and a driving part. A mounting hole is provided on the limiting section 1212, and the fixing part is slidably disposed in the mounting hole. The driving part is connected to the limiting section 1212 and is drively connected to the fixing part. The driving part can effectively drive the fixing part to move. A second mating part is provided on the inner wall of the outer shell unit 52 to cooperate with the driving part. The driving part can move to abut against the mating part, thereby effectively improving the stability of the battery assembly 50 after it is installed with the base device. The driving part can be made of a cylinder or a hydraulic rod.

[0037] Furthermore, such as Figure 4 As shown, the electrical connection assembly 20 includes a floating unit 21 and a first connector unit 22. The floating unit 21 is connected to the frame unit 11; the first connector unit 22 is disposed on the floating unit 21; the first transmission unit 41 and the second transmission unit 42 are both disposed on the floating unit 21. The floating unit 21 can effectively complete the installation of the first connector unit 22, and under the action of the floating unit 21, the contact between the first connector unit 22 and the second connector unit 53 on the battery assembly 50 can be made into a soft contact, that is, contact without mutual collision, thereby reducing the wear of the first connector unit 22 and the second connector unit 53 during the engagement.

[0038] Furthermore, such as Figure 4As shown, the floating unit 21 includes a support portion 211 and a buffer portion 212. The support portion 211 is spaced apart from the frame unit 11; the buffer portion 212 is disposed between the support portion 211 and the frame unit 11, with both ends of the buffer portion 212 connected to the support portion 211 and the frame unit 11 respectively. The first transmission unit 41 and the second transmission unit 42 are disposed on the support portion 211. The support portion 211 can effectively complete the installation of the first connector unit 22, and under the action of the buffer portion 212, it can effectively absorb the force when the second connector unit 53 and the first connector unit 22 come into contact, thereby reducing the impact force on the first connector unit 22 and thus reducing the wear of the first connector unit 22 and the second connector unit 53.

[0039] Furthermore, such as Figure 2 As shown, the protective assembly 30 includes a protective part 31 and a connecting part 32. The connecting part 32 and the support part 211 are rotatably connected; the protective part 31 is connected to the end of the connecting part 32 away from the support part 211; the protective part 31 can rotate to above the first connector unit 22 and block it. By rotating the connecting part 32, the protective part 31 can be effectively driven to rotate, so as to move closer to or away from the electrical connection assembly 20. When the connecting part 32 is set, the rotation axis of the connecting part 32 is set below the protective part 31, which can effectively reduce the rotation height of the rotating part, so that when the battery assembly 50 moves downward, the distance that the battery assembly 50 pushes the first transmission unit 41 to move can be further reduced.

[0040] Furthermore, such as Figure 3 As shown, the first transmission unit 41 includes a force-receiving part 411, an active part 412, a driven part 413, and a first elastic part 414. The force-receiving part 411 is slidably disposed between itself and the support part 211; the first elastic part 414 is connected to both the support part 211 and the force-receiving part 411; the active part 412 is rotatably disposed between itself and the support part 211, located below the force-receiving part 411, and abuts against it; the driven part 413 is rotatably disposed between itself and the support part 211, connected to the connecting part 32, and coaxially disposed with the connecting part 32, with the driven part 413 and the active part 412 forming a transmission connection. Next, the force-receiving part 411 is located below the guide section 1211, and the driven part 413 can drive the protective part 31 to rotate until the included angle between the protective part 31 and the support part 211 is greater than 90°; the force-receiving part 411 includes a pushing section 4111 and a sliding section 4112; the pushing section 4111 is connected to the sliding section 4112, the pushing section 4111 is located at the end of the sliding section 4112 near the active part 412, and the pushing section 4111 can move to abut against the active part 412; the sliding section 4112 can move to slide and fit against the active part 412.

[0041] When the battery assembly 50 moves downward, it comes into contact with the force-receiving part 411, pushing the force-receiving part 411 to move downward. When the force-receiving part 411 moves downward, it will come into contact with the active part 412, thereby causing the force-receiving part 411 to move downward and drive the active part 412 to rotate. When the active part 412 rotates, it transmits power to the driven part 413, thereby driving the driven part 413 to rotate, which in turn drives the connecting part 32 connected to it to rotate, thereby driving the protective part 31 to rotate. The driven part 413 can be a sector gear, and the driven part 413 can be a gear. The gear and the sector gear mesh with each other.

[0042] The force-receiving part 411 is located below the guide section 1211. That is, the battery assembly 50 will only come into contact with the active part 412 after it has been guided by the guide section 1211 and slid against the limiting section 1212. This can effectively prevent the battery assembly 50 from directly contacting the force-receiving part 411 before it is fully limited due to the excessive height of the force-receiving part 411. This would cause the battery assembly 50 to shake when it is not fully limited, thus damaging the first transmission unit 41.

[0043] Furthermore, when the force-receiving part 411 is moved by the external force of the battery assembly 50, the pushing section 4111 will first come into contact with the active part 412. As the pushing section 4111 moves, it will drive the active part 412 to rotate. As the active part 412 rotates and the force-receiving part 411 moves downward, the active part 412 will rotate until it slides against the sliding section 4112. As the force-receiving part 411 continues to move downward, the force-receiving part 411 will no longer push the active part 412 to rotate, but will slide against the active part 412. Since the active part 412 no longer rotates, the driven part 413 and the connecting part 32 will also no longer rotate. Thus, this device can effectively prevent the protective part 31 and the connecting part 32 from over-rotating due to the excessive movement path of the force-receiving part 411 caused by the excessive movement path of the battery assembly 50.

[0044] Furthermore, the device only needs to rotate the protective part 31 until the angle between the protective part 31 and the support part 211 is greater than 90°. When the angle between the protective part 31 and the support part 211 is greater than 90°, the battery assembly 50 will move downward and come into contact with the protective part 31. Under the pressure of the battery assembly 50, the protective part 31 will rotate along with the movement of the battery assembly 50. That is, the protective part 31 cancels the obstruction of the electrical connection assembly 20 through the force-bearing part 411, and the subsequent rotation is completed by the pressure of the battery assembly 50. In this way, the overall operation of the device can be satisfied even if the overall size of the assembly remains unchanged and the rotation stroke of the protective part 31 is insufficient due to the height position setting of the force-bearing part 411.

[0045] Furthermore, such as Figure 1As shown, the second transmission unit 42 includes a first transmission part 421, a second transmission part 422, and a second elastic part 424. The first transmission part 421 and the second transmission part 422 are spaced apart and are both rotatably connected to the support part 211. The first transmission part 421 and the second transmission part 422 are connected by a transmission belt 423. The first transmission part 421 is coaxially connected to the driven part 413. The second elastic part 424 is disposed on the support part 211 and is connected to the transmission belt 423 via a mounting part 425. Rotation of the driven part 413 effectively drives the first transmission part 421 to rotate. Rotation of the first transmission part 421 drives the second transmission part 422 to rotate via the transmission belt 423. That is, when the driven part 423 rotates... When rotating, the transmission belt 423 rotates around the first transmission part 421 and the second transmission part 422. It is fixedly set with the support part 211 through the second elastic part 424. The telescopic end of the second elastic part 424 is connected to the transmission belt 423 through the mounting part 425. When the transmission belt 423 moves, it will drive the second elastic part 424 to work. Thus, when the battery assembly 50 is disengaged from the base device, the second elastic part 424 can drive the transmission belt 423 to reset, thereby driving the first transmission part 421 to rotate in the opposite direction. The reverse rotation of the first transmission part 421 can drive the driven part 413 and the connecting part 32 to rotate in the opposite direction, thereby restoring the shielding of the electrical connection assembly 20.

[0046] Furthermore, such as Figure 1 As shown, the base support device also includes a reverse transmission unit 43. The protective components 30 are configured in two sets; both sets of protective components 30 can rotate to the top of the support portion 211, and the rotation directions of the two sets of protective components 30 are opposite when they rotate to be close to the first connector unit 22; one set of protective components 30 is connected to the first transmission unit 41, and the other set of protective components 30 is connected to the second transmission portion 422 via the reverse transmission unit 43; by configuring the protective components 30 in two sets, with the two sets of protective components 30 located at opposite ends of the support portion 211, the arrangement of the two sets of protective components 30 can effectively reduce the length of the protective portion 31, thereby reducing the space required for the protective portion 31 to rotate. When one of the protective portions 31 rotates, it can effectively drive the second transmission portion 422 to rotate, while the reverse transmission unit 43 is connected to the second transmission portion 422, meaning the reverse transmission unit 43 is in the opposite direction to the second transmission portion 422 and to the rotation direction of the driven portion 413. The reverse transmission unit 43 drives the other set of protective components 30 to rotate, thus ultimately achieving opposite rotation directions for the two transmission components 40.

[0047] Example 2:

[0048] This embodiment provides a power supply system, which is applied to any of the base support devices in Embodiment 1, such as... Figure 5As shown, the power supply system includes a battery assembly 50. The battery assembly 50 includes a housing unit 52, a cell unit 51, and a second connector unit 53. The cell unit 51 is disposed inside the housing unit 52 and connected to the inner wall of the housing unit 52. The second connector unit 53 is fixedly disposed inside the housing unit 52 and is located below the cell unit 51. The second connector unit 53 is electrically connected to the cell unit 51 and to the electrical connection assembly 20. The housing unit 52 can move downward to abut against the first transmission unit 41. The cell unit 51 and the second connector unit 53 are installed through the housing unit 52, and the second connector unit 53 is electrically connected to the cell unit 51, thereby connecting the first connector unit 22 through the second connector unit 53. The downward movement of the housing unit 52 abuts against the force-receiving part 411, thereby pushing the force-receiving part 411 downward.

[0049] Furthermore, such as Figure 5 As shown, the base device has a first guide portion 121. The first guide portion 121 includes a guide section 1211 and a limiting section 1212; the outer shell unit 52 is movable to abut against the guide section 1211, and the outer shell unit 52 is movable to slide in contact with the limiting section 1212; the outer shell unit 52 can be guided into the limiting section 1212 by the action of multiple guide sections 1211, and the limiting operation of the outer shell unit 52 is completed by the multiple limiting sections 1212 sliding in contact with the outer shell unit 52. The second guide portion 122 in the base device can further limit the outer shell unit 52, thereby satisfying the stable installation of the battery assembly 50 and the base device.

[0050] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A base support device, characterized in that, The base support device includes: Seat assembly; An electrical connection assembly is disposed on the base assembly; A protective component, which is rotatably mounted on an electrical connection component; A transmission assembly, comprising a first transmission unit and a second transmission unit; the first transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly; the second transmission unit is disposed on the electrical connection assembly and is drively connected to the protective assembly. The first transmission unit can be moved by force to drive the protective component to rotate away from the electrical connection component; the second transmission unit can drive the protective component to rotate to be close to the electrical connection component, and the protective component and the electrical connection component together form a shielding space.

2. The base support device according to claim 1, characterized in that, The seat assembly includes a frame unit and a guide unit; the guide unit is disposed on the frame unit; the electrical connection assembly is disposed on the frame unit.

3. A base support device according to claim 2, characterized in that, The guiding unit includes a plurality of first guiding parts and a plurality of second guiding parts. The plurality of first guiding parts are all connected to the frame unit. Each first guiding part includes a guiding section and a limiting section. The limiting section is connected to the frame unit, and the end of the limiting section away from the frame unit is connected to the guiding section. The plurality of second guiding parts are all connected to the frame unit.

4. A base support device according to claim 3, characterized in that, The electrical connection assembly includes a floating unit and a first connector unit; the floating unit is connected to the frame unit; the first connector unit is disposed on the floating unit; the first transmission unit and the second transmission unit are both disposed on the floating unit.

5. A base support device according to claim 4, characterized in that, The floating unit includes a support part and a buffer part, the support part being spaced apart from the frame unit; the buffer part is disposed between the support part and the frame unit, with both ends of the buffer part connected to the support part and the frame unit respectively, and the first transmission unit and the second transmission unit being disposed on the support part.

6. A base support device according to claim 5, characterized in that, The protective component includes a protective part and a connecting part, the connecting part and the supporting part being rotatably connected; the protective part is connected to the end of the connecting part away from the supporting part; the protective part can be rotated to above the first connector unit and shield it.

7. A base support device according to claim 6, characterized in that, The first transmission unit includes a force-receiving part, an active part, a driven part, and a first elastic part. The force-receiving part is slidably disposed between itself and the support part. The first elastic part is connected to the support part and the force-receiving part. The active part is rotatably disposed between itself and the support part, and the active part is located below the force-receiving part, abutting against the force-receiving part. The driven part is rotatably disposed between itself and the support part, and the driven part is connected to the connecting part. The driven part and the connecting part are coaxially disposed, and the driven part and the active part are connected by transmission. The force-receiving part is located below the guide section. The driven part can drive the protective part to rotate until the included angle between the protective part and the support part is greater than 90°. The force-receiving part includes a pushing section and a sliding section. The pushing section is connected to the sliding section, and the pushing section is located at the end of the sliding section near the active part. The pushing section can move to abut against the active part. The sliding section can move to slide and fit against the active part.

8. A base support device according to claim 7, characterized in that, The second transmission unit includes a first transmission part, a second transmission part, and a second elastic part; the first transmission part and the second transmission part are spaced apart, and both the first transmission part and the second transmission part are rotatably connected to the support part, and the first transmission part and the second transmission part are connected by a transmission belt; the first transmission part is coaxially connected to the driven part, and the second elastic part is disposed on the support part, and the second elastic part is connected to the transmission belt through a mounting part.

9. A base support device according to claim 8, characterized in that, It also includes a reverse transmission unit; the protective components are configured in two sets; both sets of the protective components can rotate to the top of the support, and the two sets of the protective components rotate in the opposite direction to when they are close to the first connector unit; one set of the protective components is connected to the first transmission unit, and the other set of the protective components is connected to the second transmission unit through the reverse transmission unit.

10. A power supply system, characterized in that, The power supply system includes a base support device as described in any one of claims 1-9, and the power supply system further includes: A battery assembly includes a housing unit, a cell unit, and a second connector unit. The cell unit is disposed inside the housing unit and connected to the inner wall of the housing unit. The second connector unit is fixedly disposed inside the housing unit and located below the cell unit. The second connector unit is electrically connected to the cell unit and to the electrical connection assembly. The housing unit can be moved downwards to abut against the first transmission unit.

11. A power supply system according to claim 10, characterized in that, The base support device has a first guide portion, which includes a guide section and a limiting section; the outer shell unit is movable to abut against the guide section and is movable to slide in contact with the limiting section.

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