Battery pack locking mechanism and battery pack locking device

Abstract

The application relates to a battery pack locking mechanism and relates to the technical field of battery pack replacement, which comprises a connecting rod, opposite head ends and tail ends, an abutting piece arranged at the tail end, a sliding hole arranged on the abutting piece, the connecting rod being at least partially inserted into the sliding hole, a connecting piece, a connecting hole being arranged on the connecting piece for allowing the connecting rod to be at least partially inserted, an elastic piece coaxially sleeved on the outer wall of the connecting rod, a sliding groove being arranged on the circumferential wall of the sliding hole, an abutting ring being coaxially arranged on the outer wall of the abutting piece, one end of the elastic piece abutting the groove bottom of the sliding groove, and the other end of the elastic piece abutting the abutting ring. The application has the effect of adapting to battery packs with connecting ears of different thicknesses.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pack replacement, in particular to a battery pack locking mechanism and a battery pack locking device. BACKGROUND

[0002] The existing battery setting mode of electric vehicles is generally divided into fixed type and replaceable type. The fixed type battery is generally fixed on the vehicle, and the vehicle is directly used as the charging object during charging. The replaceable battery is generally fixed on the bottom of the vehicle by a movable mounting mode, and the bottom of the vehicle has a mounting slot for inserting the battery. The battery can be removed for separate replacement or charging operation, and after the replaced battery is charged, it is installed on the vehicle.

[0003] In the related art, there is a locking mechanism including an abutting block, an abutting column and a plug-in column. The abutting block is located on the upper side of the abutting column, and the plug-in column is integrally provided on the upper end of the abutting column. An insertion hole is formed in the abutting block for inserting the plug-in column. When the battery pack needs to be locked, the connecting lug of the battery pack is placed between the abutting block and the abutting column, the abutting column is slid upward, the plug-in column is inserted into the insertion hole, and the abutting column abuts on the connecting lug of the battery pack, so as to lock the battery pack. At this time, the battery pack can be transported into the mounting slot of the vehicle to fix the battery pack.

[0004] According to the related art in the above, the inventors believe that the thickness of the connecting lug of the battery pack is different, and the distance between the abutting column and the abutting block is fixed. It may not be able to clamp and fix the connecting lug, resulting in the risk of shaking of the battery pack during transportation of the battery pack. SUMMARY

[0005] In order to adapt to the battery pack with different thickness of connecting lug, the present application provides a battery pack locking mechanism and a battery pack locking device.

[0006] In the first aspect, the battery pack locking mechanism provided by the present application adopts the following technical scheme:

[0007] A battery pack locking mechanism, comprising a connecting rod, the connecting rod comprising opposite head end and tail end;

[0008] An abutting piece is arranged on the tail end, and a sliding hole is formed in the abutting piece, and the connecting rod is at least partially inserted into the sliding hole;

[0009] A connecting piece is provided, and a connecting hole is formed in the connecting piece for at least partial insertion of the connecting rod;

[0010] An elastic member is coaxially sleeved on the outer wall of the connecting rod, a sliding groove is formed in the side wall of the sliding hole, a limiting ring is coaxially arranged on the outer wall of the abutting member, one end of the elastic member abuts against the bottom of the sliding groove, and the other end of the elastic member abuts against the limiting ring.

[0011] When the battery needs to be locked, the connecting rod is slid out of the sliding hole, and the connecting rod and the connecting member have a gap therebetween. The connecting lug on the battery is placed between the connecting rod and the connecting member, the connecting rod is inserted into the mounting hole on the connecting lug, and the hole bottom of the connecting hole axially limits the connecting rod when the connecting rod abuts against the hole bottom of the connecting hole. The abutting member continues to slide towards the connecting member, and the abutting member slides against the connecting lug, so as to fix the battery pack. The elastic member can adjust the distance between the top end of the connecting rod and the abutting member, so as to adapt to the thickness of the connecting lug of different battery packs, and further adapt to different battery packs. On the other hand, the elastic member can buffer the axial movement of the connecting rod and the abutting member, slow down the axial sliding of the connecting rod and the abutting member, and make the sliding of the connecting rod and the abutting member more stable.

[0012] Optionally, a guide block is arranged on the side wall of the limiting ring, and a guide groove for sliding of the guide block is formed in the side wall of the sliding groove.

[0013] By adopting the above technical scheme, the guide block can axially limit the connecting rod when the abutting member starts to slide, so that the fixing of the connecting rod is more stable, and the fixing of the battery pack is more stable.

[0014] Optionally, a connecting groove is formed in the bottom of the abutting member, the connecting groove and the sliding groove are in communication with each other, and a connecting block is arranged in the connecting groove.

[0015] By adopting the above technical scheme, since the diameter of the elastic member is greater than the diameter of the connecting hole, the elastic member is not convenient to be installed in the sliding groove. According to the scheme, the connecting groove is arranged, and the connecting block is arranged in the connecting groove. When the elastic member needs to be installed, the connecting block is removed, the elastic member is installed, and then the connecting block is installed in the connecting groove, so that the installation of the elastic member is facilitated.

[0016] In a second aspect, the application provides a battery pack locking device, which adopts the following technical scheme:

[0017] The battery pack locking device comprises a lifting platform, a lifting assembly, a rotating assembly and the battery pack locking mechanism as claimed in any one of claims 1-3, the battery pack locking mechanism is provided with multiple groups, the lifting assembly, the rotating assembly and the multiple groups of the battery pack locking mechanism are all installed on the lifting platform, the lifting platform drives the multiple groups of the battery pack locking mechanism, the lifting assembly and the rotating assembly to vertically slide, the lifting assembly drives the abutting piece and the connecting rod to vertically slide, and the rotating assembly drives the battery pack to rotate.

[0018] By adopting the above technical scheme, the battery pack is placed on the battery pack, the rotating assembly drives the battery pack to rotate, the connecting lug of the battery pack is rotated and inserted between the connecting rod and the connecting piece, then the lifting assembly is started, the lifting assembly drives the abutting piece and the connecting rod to vertically slide, the abutting piece passes through the through hole of the connecting lug and is inserted into the connecting hole of the connecting piece, the abutting piece abuts against the connecting lug of the battery pack, then the lifting platform is started, the lifting platform drives the battery to rise, the lifting platform is stopped when the battery is located below the mounting groove of the automobile, the lifting assembly is started, the lifting assembly drives the abutting piece and the connecting rod to descend, then the rotating assembly is started, the rotating assembly drives the battery pack to rotate, finally the lifting assembly is started, the lifting assembly drives the battery pack to rise and is inserted into the mounting groove of the automobile, at this time, the battery pack can be locked into the mounting groove by the bolt, and the installation of the battery pack is facilitated.

[0019] Optionally, the battery pack locking mechanism is provided with four groups, and the four groups of the battery pack locking mechanism are arranged around the top surface of the lifting platform.

[0020] By adopting the above technical scheme, since the battery pack itself is heavy, if only one connecting lug of the battery pack is locked, the fixing of the battery pack may be unstable. The four groups of the battery pack locking mechanism are arranged, the four groups of the battery pack locking mechanism fix the four connecting lugs of the battery pack, and the fixing of the battery pack is more stable.

[0021] Optionally, the lifting assembly comprises a vertical driving piece, a connecting plate and a cross rod, the vertical driving piece is installed on the lifting platform, the connecting plate is installed on the output shaft of the vertical driving piece, the connecting plate is provided for the battery pack, one end of the cross rod is connected with the abutting piece, and the other end of the cross rod is connected with the connecting plate.

[0022] By adopting the above technical scheme, when the abutting piece and the connecting rod need to be driven to slide upward, the vertical driving piece can be started, the vertical driving piece drives the connecting plate to slide upward, the connecting plate drives the battery pack to move upward and drives the cross rod to slide upward at the same time, the cross rod drives the abutting piece and the connecting rod to move upward, the connecting rod passes through the connecting lug of the battery pack and is inserted into the connecting hole of the connecting piece, the abutting piece abuts against the connecting lug, and the battery pack is fixed by abutting, and the fixing of the battery pack is facilitated.

[0023] Optionally, the rotating assembly comprises a rotating disc, a connecting shaft and a driving block, the rotating disc is arranged on the connecting plate, the connecting shaft is arranged on the lifting platform, the driving block is arranged on the side wall of the connecting shaft, the connecting shaft and the driving block vertically pass through the connecting plate, a through hole is arranged on the rotating disc, a one-way shaft is arranged in the through hole, the connecting shaft passes through the one-way shaft, a vertical slot for the sliding of the driving block is arranged on the inner ring of the one-way shaft, a spiral slot for the sliding of the driving block is arranged on the inner ring of the one-way shaft, the spiral slot and the vertical slot are communicated with each other, when the connecting plate vertically slides downward, the one-way shaft drives the rotating disc to rotate, when the connecting plate vertically slides upward, the one-way shaft is in a static state.

[0024] By adopting the above technical scheme, when the vertical driving member drives the connecting plate to descend, the connecting plate drives the one-way shaft to move downward, the driving rod is inserted into the inner ring of the one-way shaft, the driving block is inserted into the vertical slot, the driving block is inserted into the spiral slot along with the movement of the one-way shaft, when the driving block is inserted into the spiral slot, the driving block drives the one-way shaft to rotate, the one-way shaft drives the rotating disc to rotate, the rotating disc drives the battery pack to rotate at the same time, the connecting lug of the battery pack is inserted into the gap between the connecting rod and the connecting piece, then the vertical driving member is started, the vertical driving member drives the connecting plate to slide upward, due to the arrangement of the one-way shaft, the rotating disc will not drive the battery pack to rotate, the connecting plate drives the connecting rod and the connecting piece to slide upward, the connecting rod passes through the connecting lug of the battery pack and is inserted into the connecting hole, and the abutting piece abuts against the connecting lug. Then the lifting platform is started, the lifting platform is transported upward, the lifting platform transports the battery pack to the lower side of the automobile mounting groove, then the vertical driving member is started, the vertical driving member drives the connecting plate to slide downward, when the driving block slides into the spiral slot, the connecting rod slides out of the connecting hole, at this time, the driving block drives the rotating disc to rotate, the rotating disc drives the battery pack to rotate, the connecting lug of the battery pack rotates out of the gap between the connecting rod and the connecting piece, and the vertical driving member is started again, the vertical driving member drives the connecting plate to slide upward, due to the arrangement of the one-way shaft, the connecting plate will not drive the battery pack to rotate, the connecting plate sends the battery pack into the mounting groove, at this time, the battery pack can be mounted and fixed in the mounting groove. The fixation of the battery pack is facilitated.

[0025] Optionally, the rotating disc is provided with a positioning protrusion for being inserted into a positioning groove of the battery pack.

[0026] By adopting the above technical scheme, by arranging the positioning protrusion, when the rotating disc drives the battery pack to rotate, the positioning protrusion can position the battery pack, so that the battery pack can rotate along with the rotation of the rotating disc, the fixation of the battery pack is more stable, and the rotation of the battery pack is more stable.

[0027] Optionally, the one-way shaft comprises an outer shaft ring, an inner shaft ring and a lever, the outer shaft ring is coaxially arranged on the inner wall of the through hole, the inner shaft ring is coaxially arranged in the inner ring of the outer shaft ring, and the levers are arranged in two, the inner shaft ring is rotationally arranged on the outer wall of the inner shaft ring, the inner wall of the outer shaft ring is circumferentially provided with a ratchet groove for inserting the lever, and the lever and the outer wall of the inner shaft ring are provided with a torsional spring, and the torsional spring drives the lever to always rotate towards the outer shaft ring.

[0028] By adopting the above technical scheme, when the vertical driving part drives the connecting plate to slide downward, the driving block slides into the spiral groove from the vertical groove, the driving block drives the inner shaft ring to rotate, and since the torsional spring drives the lever to always rotate towards the outer shaft ring, the lever drives the outer shaft ring to rotate, thereby driving the rotating disc to rotate, and the rotating disc can drive the battery pack to rotate. When the vertical driving part drives the connecting plate to slide upward, the driving block slides into the spiral groove, and under the action of the torsional spring, the lever cannot drive the outer shaft ring to rotate, so that the battery pack is in a fixed state, and the battery pack can be vertically inserted into the mounting groove of the automobile, thereby facilitating the installation of the battery pack.

[0029] Optionally, a guide rod is vertically arranged on the lifting platform, and a sliding hole for sliding of the guide rod is arranged on the connecting rod.

[0030] By adopting the above technical scheme, the guide rod is arranged on the lifting platform, and the sliding hole for sliding of the guide rod is arranged on the connecting rod, so that the connecting rod and the abutting piece can only slide along the axial direction of the guide rod, and the sliding of the connecting piece and the abutting piece is more stable.

[0031] In summary, the present application has at least one of the following beneficial technical effects:

[0032] 1. The battery pack locking mechanism is provided with a connecting rod, an abutting piece, a connecting piece and an elastic piece, which can adapt to the thickness of different battery pack connecting ears, thereby adapting to battery packs with different thickness connecting ears;

[0033] 2. The battery pack locking device is provided with a lifting platform, a lifting assembly, a rotating assembly and a locking mechanism, which facilitates the installation of the battery pack;

[0034] 3. The battery pack locking device is provided with a one-way shaft, thereby facilitating the installation of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view of the battery pack locking device.

[0036] Figure 2 is a sectional view of the locking mechanism.

[0037] Figure 3is an exploded structural schematic diagram of the lifting platform and the lifting assembly.

[0038] Figure 4 is Figure 3 is an enlarged view of part A in FIG.

[0039] Figure 5 is a structural schematic diagram of the one-way shaft.

[0040] Figure 6 is a structural schematic diagram of the inner shaft ring.

[0041] Label explanation: 1, locking mechanism; 11, connecting rod; 111, sliding hole; 112, limiting ring; 1121, guide block; 12, abutting piece; 121, sliding hole; 122, sliding groove; 1221, guide groove; 123, connecting groove; 1231, connecting block; 13, connecting piece; 131, abutting plate; 1311, connecting hole; 13111, abutting ring; 132, positioning plate; 14, elastic piece; 2, lifting platform; 21, guide rod; 3, lifting assembly; 31, vertical driving piece; 32, connecting plate; 321, assembly groove; 3211, bearing; 322, let-hole; 33, cross rod; 331, fixed plate; 4, rotating assembly; 41, rotating disc; 411, positioning protrusion; 42, one-way shaft; 421, outer shaft ring; 4211, circular groove; 42111, ratchet groove; 422, inner shaft ring; 4221, vertical groove; 4222, helical groove; 423, actuating rod; 4231, torsional spring; 43, connecting shaft; 44, driving block. DETAILED DESCRIPTION

[0042] The following will be described in detail in combination with the accompanying Figures 1-6 The application is further described in detail.

[0043] The embodiment of the application discloses a battery pack locking device.

[0044] Reference Figure 1 The battery pack locking device comprises a locking mechanism 1, a lifting platform 2, a lifting assembly 3 and a rotating assembly 4. The battery pack is regulated by the locking mechanism 1, the battery pack is transported to the lower side of the automobile mounting groove by the lifting platform 2, the battery pack is transported into the automobile mounting groove by the lifting assembly 3, and the battery pack is driven to turn by the rotating assembly 4, so that the installation of the battery pack is facilitated.

[0045] Reference Figure 2The locking mechanism 1 is provided with four groups, and the four groups of locking assemblies are installed on the lifting platform 2. The locking assembly comprises a connecting rod 11, an abutting piece 12, a connecting piece 13 and an elastic piece 14. Four guide rods 21 are arranged on the lifting platform 2, and in this embodiment, the four guide rods 21 are welded around the top surface of the lifting platform 2. The connecting rod 11 is provided with a sliding hole 111 for inserting the guide rod 21, and the abutting piece 12 is provided with a sliding hole 121 penetrating through both ends thereof, and the connecting rod 11 penetrates through the sliding hole 121. The outer peripheral wall of the connecting rod 11 is integrally coaxially provided with a limiting ring 112, and the side of the abutting piece 12 close to the lifting platform 2 is provided with a sliding groove 122 for sliding insertion of the limiting ring 112.

[0046] The side of the abutting piece 12 close to the support platform is coaxially provided with a connecting groove 123, and the connecting groove 123 and the sliding groove 122 are in communication with each other, and the connecting groove 123 is provided with a connecting block 1231, and the connecting block 1231 is installed in the connecting groove 123 by bolts. Preferably, in this embodiment, the elastic piece 14 is preferably a compression spring, the elastic piece 14 is coaxially sleeved on the outer peripheral wall of the connecting rod 11, one end of the elastic piece 14 abuts against the connecting block 1231, and the other end of the elastic piece 14 abuts against the abutting ring 13111.

[0047] Referring to Figure 2 The connecting piece 13 comprises a connecting abutting plate 131 and a positioning plate 132, and the positioning plate 132 is vertically arranged on the lifting platform 2, and in this embodiment, the positioning plate 132 is welded on the lifting platform 2. The positioning plate 132 is located on the side of the abutting piece 12 away from the middle part of the lifting platform 2, and the connecting plate 32 is arranged on the side of the positioning plate 132 close to the abutting piece 12. In this embodiment, the connecting plate 32 and the positioning plate 132 are integrally formed. The connecting plate 32 is provided with a connecting hole 1311 penetrating through both sides thereof, and the connecting rod 11 can be vertically inserted into the connecting hole 1311. The abutting ring 13111 is arranged on the inner wall of the connecting hole 1311, and when the connecting rod 11 is inserted into the connecting hole 1311, the abutting ring 13111 abuts against the connecting rod 11, and the abutting ring 13111 limits the connecting rod 11, and at this time, the abutting piece 12 can continue to move and abut against the connecting lug of the battery pack.

[0048] The outer side wall of the limiting ring 112 is provided with two guide blocks 1121, and the connecting line between the two guide blocks 1121 passes through the axis of the limiting ring 112, and the abutting piece 12 is provided with a guide groove 1221 for sliding of the guide block 1121 on the side wall of the sliding groove 122. When the connecting rod 11 stops axial rotation and the abutting piece 12 still slides axially, the guide block 1121 limits the connecting rod 11, reduces the risk of circumferential rotation of the connecting rod 11, and makes the fixation of the connecting rod 11 more stable.

[0049] When the battery pack is fixed, the abutting piece 12 can be driven to move upward. Due to the arrangement of the elastic piece 14, the elastic piece 14 will drive the connecting rod 11 to move upward at the same time. The connecting rod 11 first passes through the connecting lug of the battery pack, and then the connecting rod 11 is inserted into the connecting hole 1311 of the connecting piece 13. When the connecting piece 13 abuts to the abutting ring 13111, the connecting piece 13 stops axial movement. Then the abutting piece 12 continues to move axially and abuts to the connecting lug of the battery pack, thereby clamping and fixing the battery pack. The elastic piece 14 can adjust the distance between the top end of the connecting rod 11 and the abutting piece 12, thereby adapting to the thickness of the connecting lug of different battery packs, and further adapting to different battery packs. On the other hand, the elastic piece 14 can buffer the axial movement of the connecting rod 11 and the abutting piece 12, slow down the axial sliding of the connecting rod 11 and the abutting piece 12, so that the sliding of the connecting rod 11 and the abutting piece 12 is more stable.

[0050] With reference to Figure 3 , the lifting assembly 3 comprises a vertical driving piece 31, a connecting plate 32 and a cross rod 33. Preferably, in the embodiment, the vertical driving piece 31 is preferably arranged as an oil cylinder, and the vertical driving piece 31 is provided in two groups, both of which are installed on the lifting platform 2 by bolts. The output shaft of the vertical driving piece 31 is arranged vertically upward. The connecting plate 32 is installed on the output shaft of the vertical driving piece 31 by bolts, and the battery pack is installed on the connecting plate 32. The cross rod 33 is provided with four, and the four cross rods 33 are arranged on the four side walls of the connecting plate 32. In the embodiment, the cross rod 33 and the connecting plate 32 are integrally formed, and the side of the cross rod 33 away from the connecting plate 32 is integrally provided with a fixed plate 331, which is fixed to the side wall of the abutting piece 12 by bolts. The connecting plate 32 drives the battery pack to vertically slide by the vertical driving piece 31, and the cross rod 33 drives the abutting piece 12 and the connecting rod 11 to vertically slide by the vertical driving piece 31 driving the cross rod 33 to vertically slide at the same time, which facilitates the fixation of the battery pack and saves the driving source and cost.

[0051] With reference to Figure 3 and Figure 4 , the rotating assembly 4 comprises a rotating disc 41, a one-way shaft 42, a connecting shaft 43 and a driving block 44. The side of the connecting plate 32 away from the lifting platform 2 is provided with a mounting groove 321, and the bearing 3211 is installed in the mounting groove.

[0052] With reference to Figure 5The one-way shaft 42 is coaxially arranged in the inner ring of the bearing 3211. The one-way shaft 42 comprises an outer shaft ring 421, an inner shaft ring 422 and a toggle lever 423. The outer shaft ring 421 is coaxially welded to the inner ring of the bearing 3211, and a circular groove 4211 is formed in the side of the outer shaft ring 421 away from the connecting plate 32, and the inner shaft ring 422 is coaxially arranged in the circular groove 4211. The rotating disc 41 is arranged on the side of the outer shaft ring 421 away from the connecting plate 32 through bolts. The toggle lever 423 is provided with two, and the two toggle levers 423 are both rotationally connected to the grooves of the circular groove 4211 through rotating shafts, and the two toggle levers 423 are arranged on the outer circumferential side of the inner shaft ring 422, and the connecting line between the two toggle levers 423 passes through the inner shaft center. A plurality of ratchet grooves 42111 are circumferentially formed in the inner circumferential wall of the circular groove 4211, and the two toggle levers 423 are both inserted into the ratchet grooves 42111, and a torsion spring 4231 is arranged between the toggle lever 423 and the outer side wall of the inner ring, and the torsion spring 4231 drives the toggle lever 423 to always rotate towards the outer shaft ring 421. When the inner shaft ring 422 rotates clockwise, the toggle lever 423 drives the outer shaft ring 421 and the rotating disc 41 to rotate at the same time, thereby driving the battery pack to rotate, so that the connecting lug of the battery pack can be rotatably inserted between the connecting rod 11 and the connecting piece 13, and the connecting lug of the battery pack can be rotated out of the connecting rod 11 and the connecting piece 13. It is convenient to fix and install the battery pack.

[0053] The connecting shaft 43 is vertically arranged on the lifting platform 2, and in this embodiment, the connecting shaft 43 is welded to the lifting platform 2. The driving block 44 is integrally arranged on the outer side wall of the connecting shaft 43. The connecting plate 32 is provided with a clearance hole 322 for the connecting shaft 43 and the driving block 44 to pass through, the connecting shaft 43 is vertically inserted into the inner circumferential wall of the inner shaft ring 422, the inner circumferential wall of the inner shaft ring 422 is provided with a vertical groove 4221 for the driving block 44 to be vertically inserted, and the inner circumferential wall of the inner shaft ring 422 is provided with a spiral groove 4222 for the driving block 44 to be inserted, and the spiral groove 4222 and the vertical groove 4221 are in communication with each other.

[0054] When the connecting shaft 43 is inserted into the inner circumferential wall of the inner shaft ring 422, the driving block 44 is inserted into the vertical groove 4221 with the insertion of the connecting shaft 43, and when the driving block 44 is inserted into the spiral groove 4222, the driving block 44 drives the inner shaft ring 422 to rotate clockwise, and under the action of the torsion spring 4231 and the toggle lever 423, the inner shaft ring 422 drives the outer shaft ring 421 to rotate at the same time, and the outer shaft ring 421 drives the rotating disc 41 to rotate, thereby driving the rotating disc 41 to drive the battery pack to rotate. When the connecting shaft 43 slides out of the one-way shaft 42, the connecting shaft 43 drives the inner shaft ring 422 to rotate counterclockwise, and under the action of the torsion spring 4231, the outer shaft ring 421 will not slide, thereby avoiding the rotation of the battery pack when the connecting plate 32 drives the battery pack to move upward, so that the battery pack can be inserted into the automobile mounting groove.

[0055] Referring to Figure 3The positioning protrusion 411 is inserted into the positioning groove of the battery pack, so that the battery pack is positioned and can rotate with the rotation of the rotating disc 41, and the fixation of the battery pack is more stable.

[0056] When the battery pack needs to be installed into the installation groove at the bottom of the automobile, the positioning groove of the battery pack is first aligned with the positioning protrusion 411 and is installed, and then the vertical driving part 31 is started, the vertical driving part 31 drives the connecting plate 32 to slide downwards, the connecting plate 32 drives the abutting part 12 and the connecting rod 11 to slide downwards, a gap is formed between the connecting rod 11 and the connecting part 13, and the connecting shaft 43 is inserted into the inner shaft ring 422 as the connecting plate 32 slides downwards. The driving block 44 is inserted into the spiral groove 4222 from the vertical groove 4221, at this time, the driving block 44 drives the one-way shaft 42 to rotate, the one-way shaft 42 drives the rotating disc 41 to rotate, the rotating disc 41 drives the battery pack to rotate, and the connecting lug of the battery pack is inserted between the connecting rod 11 and the connecting part 13. Then the vertical driving part 31 is started, the vertical driving part 31 drives the connecting plate 32 to slide upwards, the connecting plate 32 drives the connecting rod 11 and the abutting part 12 to slide upwards, the connecting rod 11 passes through the connecting lug and is inserted into the connecting hole 1311, and the abutting part 12 abuts on the connecting lug, so that the four connecting lugs of the battery pack are fixed. Then the lifting platform 2 is started, the lifting platform 2 is lifted, so that the battery pack is transported to below the automobile installation groove, then the vertical driving part 31 is started, the vertical driving part 31 drives the connecting plate 32 to slide downwards, and the connecting shaft 43 is inserted into the inner shaft ring 422 as the connecting plate 32 slides downwards. The driving block 44 slides into the vertical groove 4221, at this time, the connecting rod 11 slides out of the connecting hole 1311, when the driving block 44 slides into the spiral groove 4222, the driving block 44 drives the one-way shaft 42 to rotate, the one-way shaft 42 drives the rotating disc 41 to rotate, the rotating disc 41 drives the battery pack to rotate, and the connecting lug of the battery pack is turned out of the connecting rod 11 and the connecting part 13, then the vertical driving part 31 is driven to rise, the vertical driving part 31 drives the connecting plate 32 to rise, the connecting plate 32 drives the battery pack to rise, and the battery pack is aligned with the automobile installation groove and is inserted, at this time, the battery pack is fixed in the installation groove through bolts, so that the installation of the battery pack is facilitated.

[0057] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A battery pack lock mechanism (1) characterized by: The connecting rod (11) comprises opposite head end and end; The abutting piece (12) is provided at the end, and a sliding hole (121) is formed in the abutting piece (12), and the connecting rod (11) is at least partially inserted into the sliding hole (121); The connecting piece (13) is provided with a connecting hole (1311) for at least partially inserting the connecting rod (11); The elastic piece (14) is coaxially sleeved on the outer wall of the connecting rod (11), the abutting piece (12) is provided with a sliding groove (122) on the side wall of the sliding hole (121), the abutting piece (12) is provided with an abutting ring (13111) on the outer wall, one end of the elastic piece (14) abuts the bottom of the sliding groove (122), and the other end of the elastic piece (14) abuts the abutting ring (13111).

2. A battery pack locking mechanism (1) according to claim 1, characterized in that: The side wall of the abutting ring (13111) is provided with a guide block (1121), and the abutting piece (12) is provided with a guide groove (1221) on the side wall of the sliding groove (122) for sliding the guide block (1121).

3. A battery pack locking mechanism (1) according to claim 1, characterized in that: The bottom of the abutting piece (12) is provided with a connecting groove (123), the connecting groove (123) and the sliding groove (122) are in communication, and the connecting groove (123) is provided with a connecting block (1231).

4. A battery pack locking device, characterized by: The battery pack locking mechanism (1), the lifting assembly (3) and the rotating assembly (4) are all installed on the lifting platform (2), the lifting platform (2) drives the battery pack locking mechanism (1), the lifting assembly (3) and the rotating assembly (4) to vertically slide, the lifting assembly (3) drives the battery pack to vertically slide, and the rotating assembly (4) drives the battery pack to rotate.

5. The battery pack locking device of claim 4, wherein: The battery pack locking mechanism (1) is provided with four groups, and the four groups of battery pack locking mechanisms (1) are arranged around the top surface of the lifting platform (2).

6. The battery pack locking device of claim 4, wherein: The lifting assembly (3) comprises a vertical driving piece (31), a connecting plate (32) and a cross rod (33), the vertical driving piece (31) is installed on the lifting platform (2), the connecting plate (32) is installed on the output shaft of the vertical driving piece (31), and the connecting plate (32) is provided for mounting the battery pack, one end of the cross rod (33) is connected with the abutting piece (12), and the other end of the cross rod (33) is hinged with the connecting plate (32).

7. The battery pack locking device of claim 6, wherein: The rotating assembly (4) comprises a rotating disc (41), a connecting shaft (43) and a driving block (44), the rotating disc (41) is rotatably arranged on the connecting plate (32), the connecting shaft (43) is installed on the lifting platform (2), the driving block (44) is arranged on the side wall of the connecting shaft (43), the connecting shaft (43) and the driving block (44) vertically pass through the connecting plate (32), the rotating disc (41) is provided with a through hole, the through hole is provided with a one-way shaft (42), the connecting shaft (43) passes through the one-way shaft (42), the inner ring of the one-way shaft (42) is provided with a vertical slot (4221) for sliding of the driving block (44), the inner ring of the one-way shaft (42) is provided with a spiral groove (4222) for sliding of the driving block (44), the spiral groove (4222) and the vertical slot (4221) are in communication with each other, when the connecting plate (32) vertically slides downward, the one-way shaft (42) drives the rotating disc (41) to rotate, when the connecting plate (32) vertically slides upward, the one-way shaft (42) is in a static state.

8. The battery pack locking device of claim 7, wherein: The rotating disc (41) is provided with a positioning protrusion (411) for inserting into a battery pack positioning groove.

9. The battery pack locking device of claim 7, wherein: The one-way shaft (42) comprises an outer shaft ring (421), an inner shaft ring (422) and a toggle lever (423), the outer shaft ring (421) is coaxially installed on the inner wall of the through hole, the inner shaft ring (422) is coaxially arranged on the inner ring of the outer shaft ring (421), the toggle lever (423) is provided with two, the inner shaft ring (422) is rotatably arranged on the outer side wall of the inner shaft ring (422), the inner wall of the outer shaft ring (421) is circumferentially provided with a ratchet groove (42111) for inserting the toggle lever (423), the toggle lever (423) and the outer wall of the inner shaft ring (422) are provided with a torsional spring (4231), the torsional spring (4231) drives the toggle lever (423) to always rotate towards the outer shaft ring (421).

10. The battery pack locking device of claim 4, wherein: The lifting platform (2) is vertically provided with a guide rod (21), the connecting rod (11) is provided with a sliding hole (111) for sliding of the guide rod (21).

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