A lifting device used in battery swap stations

Abstract

The present invention provides a lifting device applied to a battery swap station in the technical field of lifting mechanisms, comprising: a frame, a top plate in the middle of which is provided with an I-shaped groove for taking and placing a battery pack and lifting; two lifting mechanisms symmetrically arranged in the frame; a shielding mechanism arranged in the frame; two latch positioning mechanisms, respectively arranged at the edge of one of the lifting mechanisms; the lifting mechanism comprises: two lifting sub-mechanisms symmetrically arranged in the frame; a connecting shaft, with two ends respectively connected to one of the lifting sub-mechanisms; a pushing assembly, with the left and right sides of the bottom end respectively connected to the two lifting sub-mechanisms for rotation; a supporting assembly horizontally arranged at the top of the pushing assembly. The advantages of the present invention are: it greatly reduces the space occupied in the height direction and greatly improves the lifting force.

Description

Technical Field

[0001] The present invention relates to the technical field of jacking mechanisms, and in particular to a jacking device used in a battery swap station. Background Art

[0002] When a battery swap station is replacing batteries for electric vehicles, a transport vehicle (RGV / AGV) needs to transport the battery pack to the bottom of the electric vehicle to perform the battery swap operation. In order for the transport vehicle to reach the bottom of the electric vehicle, a passage needs to be dug under the ground, or the electric vehicle needs to be lifted to a certain height. After the transport vehicle reaches the bottom of the vehicle, the lifting device on the transport vehicle lifts up the battery pack for battery swap operation.

[0003] However, the top surface of the traditional lifting device cannot be flush with the battery pack, that is, the battery pack is placed on the top of the lifting device, which increases the difficulty of battery replacement operations in the already narrow space. In addition, the lifting force of the traditional lifting device is relatively small, and when encountering a battery pack with large mass, lifting is difficult.

[0004] Therefore, how to provide a lifting device for use in battery swap stations to reduce the space occupied in the height direction and increase the lifting force has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a jacking device applied to a battery swap station, so as to reduce the space occupied in the height direction and enhance the jacking force.

[0006] The present invention is implemented as follows: a lifting device applied to a battery swap station, comprising:

[0007] A frame, the middle part of the top plate is provided with an I-shaped slot for taking and placing the battery pack and lifting;

[0008] Two lifting mechanisms are symmetrically arranged in the frame;

[0009] A shielding mechanism is disposed in the frame;

[0010] Two latch positioning mechanisms are respectively arranged on the edge of one of the lifting mechanisms;

[0011] The lifting mechanism comprises:

[0012] Two lifting sub-mechanisms are symmetrically arranged in the frame;

[0013] A connecting shaft, with two ends respectively connected to a lifting sub-mechanism;

[0014] A push assembly, the left and right sides of the bottom end of which are rotatably connected to the two lifting sub-mechanisms respectively;

[0015] A supporting component is horizontally arranged on the top of the pushing component.

[0016] Furthermore, the lifting sub-mechanism includes:

[0017] A first motor is disposed in the frame;

[0018] a speed reducer, whose power input end is connected to the power output end of the first motor;

[0019] A sprocket assembly connected to the power output end of the reducer;

[0020] a circular gear coaxially connected to the sprocket assembly and the connecting shaft;

[0021] A sector gear is meshed with the circular gear and is rotationally connected to the push assembly.

[0022] Furthermore, the recommendation component includes:

[0023] Four L-shaped push rods, each having a first rotation hole at the lower end, a second rotation hole at the upper end, and a linkage hole in the middle; the L-shaped push rods are rotatably connected to the support assembly through the four second rotation holes, and are rotatably connected to the lifting sub-mechanism through two of the linkage holes;

[0024] Two connecting cross bars, the front and rear ends of which are rotatably connected to the two L-shaped push rods through the first rotating holes.

[0025] Furthermore, the connecting cross bar, the L-shaped push rod and the supporting assembly form a parallelogram force-bearing structure.

[0026] Furthermore, the shielding mechanism comprises:

[0027] A second motor is disposed in the frame, with a power output end facing vertically upward;

[0028] A shielding plate is connected to the power output end of the second motor, is located at the edge of the middle part of the I-shaped groove, and is higher than the top of the frame.

[0029] Furthermore, the latch positioning mechanism comprises:

[0030] a vertical guide rail disposed on an edge of the support assembly;

[0031] A sliding block, slidably connected to the vertical guide rail;

[0032] A positioning pin is vertically arranged at the top end of the slide block;

[0033] A third motor is arranged at the edge of the supporting assembly, and a power output end is connected to the sliding block.

[0034] Furthermore, it also includes:

[0035] Four rollers are symmetrically arranged at the bottom end of the frame.

[0036] Furthermore, it also includes:

[0037] A PLC is connected to the lifting mechanism, the shielding mechanism and the latch positioning mechanism respectively.

[0038] Furthermore, it also includes:

[0039] A power supply module is connected with the PLC.

[0040] Furthermore, the support assembly comprises:

[0041] A lower push plate having a plurality of bull's eye through holes extending therethrough;

[0042] An upper push plate is arranged at the upper end of the lower push plate, and a plurality of oblique bull's eye grooves are arranged at the bottom end facing the bull's eye through hole;

[0043] A plurality of telescopic bull's eyes, the side wall ring is provided with an extension part, and the extension part is nested in the bull's eye through hole, and the rolling end faces the oblique pointed bull's eye groove;

[0044] A plurality of load-bearing blocks are arranged on the upper end of the lower pushing plate.

[0045] The advantages of the present invention are:

[0046] 1. An I-shaped groove for taking and placing the battery pack and lifting is provided in the middle of the top plate of the frame, and two lifting mechanisms are symmetrically arranged in the frame. That is, when the lifting mechanism is lowered to the lowest position, it is attached to the bottom plate inside the frame. At this time, the battery pack is placed in the I-shaped groove so that the top surface of the battery pack is flush with the top plate of the frame, that is, an inner-mounted design is adopted, which greatly reduces the space occupied in the height direction, thereby greatly expanding the applicable scenarios of the lifting device.

[0047] 2. By setting up a lifting mechanism including a first motor, a reducer, a sprocket assembly, a circular gear and a fan gear, a first-stage reduction transmission is performed through the reducer, a second-stage reduction transmission is performed through the sprocket assembly, and a third-stage reduction transmission is performed through the circular gear and the fan gear, that is, multi-stage reduction is adopted, so that the lifting mechanism is more labor-saving, thereby greatly improving the lifting force of the lifting device.

[0048] 3. By setting up a shielding mechanism including a second motor and a shielding plate, when the battery pack is placed in the lifting device, the second motor drives the shielding plate to rotate to cover the charging port of the battery pack, thereby preventing dirty water and dirt from falling into the charging port and causing a short circuit or damaging the battery pack, thereby greatly improving safety.

[0049] 4. A parallelogram force-bearing structure is formed by setting a connecting cross bar, an L-shaped push rod and a support assembly to ensure that the support assembly can remain level in any state.

[0050] 5. By setting a latch positioning mechanism including a vertical guide rail, a slider, a positioning pin and a third motor on the edge of the support assembly, when the support assembly is raised to the highest position, the positioning pin can be further raised by the drive of the third motor, that is, secondary transmission is performed. When the support assembly is lowered to the lowest position, the latch positioning mechanism is hidden in the frame to reduce the space occupied in the height direction.

[0051] 6. By setting an oblique pointed bull's eye groove at the bottom end of the upper push plate, the upper push plate relies on its own weight or the elastic force generated by the spring of the telescopic bull's eye (bull's eye lifting spring) to ensure that the oblique pointed bull's eye groove remains coincident with the telescopic bull's eye, and is in a fixed position when the horizontal position is stable; when the upper push plate is horizontally offset, the telescopic bull's eye will generate lateral force on the oblique pointed bull's eye groove to return the upper push plate, and the telescopic bull's eye is in the middle of the oblique pointed bull's eye groove; the angle of the oblique pointed mouth of the oblique pointed bull's eye groove can also be changed according to the requirements of different scenarios to change the size of the lateral force generated by the structure; by setting a load-bearing block on the lower push plate to share the pressure of the telescopic bull's eye, it is ensured that the spring of the telescopic bull's eye is not overloaded, thereby greatly improving the service life of the support component. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0053] Figure 1 This is one of the structural schematic diagrams of a jacking device applied to a battery swap station of the present invention.

[0054] Figure 2 This is the second structural schematic diagram of a jacking device applied to a battery swap station according to the present invention.

[0055] Figure 3 It is a structural schematic diagram of the jacking mechanism of the present invention.

[0056] Figure 4 It is a side view of the jacking mechanism of the present invention.

[0057] Figure 5 It is a structural schematic diagram of the latch positioning mechanism of the present invention.

[0058] Figure 6 It is a structural schematic diagram of the support assembly of the present invention.

[0059] Figure 7 It is a structural schematic diagram of the lower push-up plate of the present invention.

[0060] Figure 8It is a structural schematic diagram of the upper push plate of the present invention.

[0061] Fig. 9 It is a cross-sectional view of the upper push plate of the present invention.

[0062] Fig.10 It is a structural schematic diagram of the telescopic bull's eye of the present invention.

[0063] Fig.11 It is a cross-sectional view of the telescopic bull's eye of the present invention.

[0064] Fig.12 The present invention is a circuit principle block diagram of a lifting device applied to a battery swap station.

[0065] Marking Description:

[0066] 100-A lifting device for a battery swap station, 1-frame, 2-lifting mechanism, 3-shielding mechanism, 4-pin positioning mechanism, 5-roller, 6-PLC, 7-power module, 11-I-shaped slot, 21-lifting sub-mechanism, 22-connecting shaft, 23-pushing assembly, 24-support assembly, 211-first motor, 212-reducer, 213-sprocket assembly, 214-circular gear, 215-sector gear, 2131-sprocket, 2132-chain, 231-L-shaped lifting rod, 2 32-connecting cross bar, 2311-first rotating hole, 2312-second rotating hole, 2313-linkage hole, 31-second motor, 32-shielding plate, 41-vertical guide rail, 42-slider, 43-locating pin, 44-third motor, 241-lower pushing plate, 242-upper pushing plate, 243-telescopic bull's eye, 244-load-bearing block, 2411-bull's eye through hole, 2421-oblique pointed bull's eye groove, 2431-extension part, 2432-bull's eye, 2433-guide shaft, 2434-spring. DETAILED DESCRIPTION

[0067] The embodiment of the present invention provides a lifting device 100 applied to a battery swap station, thereby solving the technical problems in the prior art that the top surface of the lifting device cannot be flush with the battery pack and the lifting force is relatively small, thereby greatly reducing the space occupied in the height direction and greatly improving the technical effect of the lifting force.

[0068] The technical solution in the embodiment of the present invention is to solve the above-mentioned problem, and the overall idea is as follows: adopting the design of an internally embedded battery pack to reduce the space occupied in the height direction, and adopting multi-stage deceleration to enhance the lifting force of the lifting device.

[0069] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0070] Please refer to Figures 1 to 12As shown, a preferred embodiment of a lifting device 100 applied to a battery swap station of the present invention includes:

[0071] A frame 1, the middle of the top plate is provided with an I-shaped slot 11 for taking in and placing a battery pack (not shown) and for lifting; the frame 1 is used to carry a lifting device 100;

[0072] Two lifting mechanisms 2 are symmetrically arranged in the frame 1 and are used to lift the battery pack;

[0073] a shielding mechanism 3, disposed in the frame 1, for shielding a charging port of a battery pack (not shown);

[0074] Two latch positioning mechanisms 4 are respectively arranged at the edge of one of the lifting mechanisms 2, and are used to position the pin holes (not shown) at the bottom of the electric vehicle (not shown) during the battery replacement operation;

[0075] The lifting mechanism 2 comprises:

[0076] Two lifting sub-mechanisms 21 are symmetrically arranged in the frame 1;

[0077] A connecting shaft 22, with two ends respectively connected to one of the lifting sub-mechanisms 21, for linking the two lifting sub-mechanisms 21 to work synchronously;

[0078] A pushing assembly 23, the left and right sides of the bottom end of which are rotatably connected to the two lifting sub-mechanisms 21 respectively;

[0079] A support assembly 24 is horizontally disposed at the top of the pushing assembly 23 and is used to place the battery pack to be lifted.

[0080] The lifting sub-mechanism 21 comprises:

[0081] A first motor 211, disposed in the frame 1, for providing power for the lifting and lowering of the support assembly 24;

[0082] a reducer 212, whose power input end is connected to the power output end of the first motor 211;

[0083] A sprocket assembly 213 connected to the power output end of the reducer 212; the sprocket assembly 213 includes two sprockets 2131 and a chain 2132;

[0084] A circular gear 214, coaxially connected to the sprocket assembly 213 and the connecting shaft 22;

[0085] A sector gear 215 meshes with the circular gear 214 and is rotationally connected to the pushing assembly 23 .

[0086] The recommendation component 23 includes:

[0087] Four L-shaped push rods 231, with a first rotation hole 2311 at the lower end, a second rotation hole 2312 at the upper end, and a linkage hole 2313 in the middle; the L-shaped push rod 231 is rotatably connected to the support assembly 24 through the four second rotation holes 2312, and is rotatably connected to the lifting sub-mechanism 21 through two of the linkage holes 2313;

[0088] The two connecting cross bars 232 are rotatably connected to the two L-shaped pushing rods 231 through the first rotating holes 2311 at the front and rear ends.

[0089] The connecting cross bar 232, the L-shaped push rod 231 and the support assembly 24 form a parallelogram force-bearing structure, thereby ensuring that the support assembly 24 can remain horizontal regardless of the state.

[0090] The shielding mechanism 3 comprises:

[0091] A second motor 31 is disposed in the frame 1, with a power output end facing vertically upward, and is used to provide power for the rotation of the shielding plate 32;

[0092] A shielding plate 32 is connected to the power output end of the second motor 31, is located at the edge of the middle part of the I-shaped groove 11, and is higher than the top of the frame 1, and is used to shield the charging port of the battery pack.

[0093] The latch positioning mechanism 4 comprises:

[0094] A vertical guide rail 41, provided at the edge of the support assembly 24, for limiting the sliding movement of the slider 42;

[0095] A slider 42 is slidably connected to the vertical guide rail 41 and is used to link the positioning pin 43 to move up and down;

[0096] A positioning pin 43 is vertically arranged at the top of the slider 42 and cooperates with the pin hole at the bottom of the electric vehicle for positioning;

[0097] A third motor 44 is disposed at the edge of the support assembly 24 , and a power output end thereof is connected to the slider 42 , so as to provide power for the lifting and lowering of the positioning pin 43 .

[0098] Also includes:

[0099] Four rollers 5 are symmetrically arranged at the bottom end of the frame 1 to facilitate moving the lifting device 100 .

[0100] Also includes:

[0101] A PLC6 is respectively connected to the lifting mechanism 2, the shielding mechanism 3 and the latch positioning mechanism 4; the PLC6 is used to control the operation of the lifting device 100. In specific implementation, it is sufficient to select a PLC that can realize this function from the prior art, and it is not limited to any model. Moreover, the control program is well known to those skilled in the art, and can be obtained by those skilled in the art without any creative work.

[0102] Also includes:

[0103] A power module 7 is connected to the PLC 6 and is used to supply power to the lifting device 100 .

[0104] The support assembly 24 includes:

[0105] A lower push plate 241 having a plurality of bull's eye through holes 2411 extending therethrough;

[0106] An upper push plate 242 is provided at the upper end of the lower push plate 241, and a plurality of oblique pointed bull's eye grooves 2421 are provided at the bottom end thereof facing the bull's eye through hole 2411; the upper push plate 242 is lifted and lowered on the lower push plate 241 through a guide rod (not shown), that is, it moves downward when there is a load, so as to compress the telescopic bull's eye 243;

[0107] A plurality of telescopic bull's eyes 243, the side wall of which is provided with an extension part 2431, which is nested in the bull's eye through hole 2411 through the extension part 2431, and the rolling end faces the oblique pointed bull's eye groove 2421; the telescopic bull's eye 243 is composed of a bull's eye 2432, a guide shaft 2433, a spring 2434 and other components;

[0108] A plurality of load-bearing blocks 244 are disposed at the upper end of the lower pushing plate 241 .

[0109] Working principle of the present invention:

[0110] Place the new battery pack into the frame 1 through the I-shaped groove 11, and press it on the support assembly 24, and move the lifting device 100 to the bottom of the electric car through the roller 5. The PLC6 controls the lifting mechanism 2 to lift the battery pack to a preset height, and then controls the latch positioning mechanism 4 to insert the positioning pin 43 into the pin hole at the bottom of the electric car, and then performs the battery replacement operation. After the battery replacement is completed, the old battery pack is placed on the support assembly 24, and the PLC6 controls the latch positioning mechanism 4 to retract the positioning pin 43, and controls the lifting mechanism 2 to descend to the lowest position, so that the battery pack is embedded in the frame 1, and the PLC6 drives the second motor 31 to rotate the baffle 32 to cover the charging port of the battery pack.

[0111] In summary, the advantages of the present invention are:

[0112] 1. An I-shaped groove for taking and placing the battery pack and lifting is provided in the middle of the top plate of the frame, and two lifting mechanisms are symmetrically arranged in the frame. That is, when the lifting mechanism is lowered to the lowest position, it is attached to the bottom plate inside the frame. At this time, the battery pack is placed in the I-shaped groove so that the top surface of the battery pack is flush with the top plate of the frame, that is, an inner-mounted design is adopted, which greatly reduces the space occupied in the height direction, thereby greatly expanding the applicable scenarios of the lifting device.

[0113] 2. By setting up a lifting mechanism including a first motor, a reducer, a sprocket assembly, a circular gear and a fan gear, a first-stage reduction transmission is performed through the reducer, a second-stage reduction transmission is performed through the sprocket assembly, and a third-stage reduction transmission is performed through the circular gear and the fan gear, that is, multi-stage reduction is adopted, so that the lifting mechanism is more labor-saving, thereby greatly improving the lifting force of the lifting device.

[0114] 3. By setting up a shielding mechanism including a second motor and a shielding plate, when the battery pack is placed in the lifting device, the second motor drives the shielding plate to rotate to cover the charging port of the battery pack, thereby preventing dirty water and dirt from falling into the charging port and causing a short circuit or damaging the battery pack, thereby greatly improving safety.

[0115] 4. A parallelogram force-bearing structure is formed by setting a connecting cross bar, an L-shaped push rod and a support assembly to ensure that the support assembly can remain level in any state.

[0116] 5. By setting a latch positioning mechanism including a vertical guide rail, a slider, a positioning pin and a third motor on the edge of the support assembly, when the support assembly is raised to the highest position, the positioning pin can be further raised by the drive of the third motor, that is, secondary transmission is performed. When the support assembly is lowered to the lowest position, the latch positioning mechanism is hidden in the frame to reduce the space occupied in the height direction.

[0117] 6. By setting an oblique pointed bull's eye groove at the bottom end of the upper push plate, the upper push plate relies on its own weight or the elastic force generated by the spring of the telescopic bull's eye (bull's eye lifting spring) to ensure that the oblique pointed bull's eye groove remains coincident with the telescopic bull's eye, and is in a fixed position when the horizontal position is stable; when the upper push plate is horizontally offset, the telescopic bull's eye will generate lateral force on the oblique pointed bull's eye groove to return the upper push plate, and the telescopic bull's eye is in the middle of the oblique pointed bull's eye groove; the angle of the oblique pointed mouth of the oblique pointed bull's eye groove can also be changed according to the requirements of different scenarios to change the size of the lateral force generated by the structure; by setting a load-bearing block on the lower push plate to share the pressure of the telescopic bull's eye, it is ensured that the spring of the telescopic bull's eye is not overloaded, thereby greatly improving the service life of the support component.

[0118] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A lifting device used in a battery swap station. Features: include: A frame, the middle part of the top plate is provided with an I-shaped slot for taking and placing the battery pack and lifting; Two lifting mechanisms are symmetrically arranged in the frame; A shielding mechanism is disposed in the frame; Two latch positioning mechanisms are respectively arranged on the edge of one of the lifting mechanisms; The lifting mechanism comprises: Two lifting sub-mechanisms are symmetrically arranged in the frame; A connecting shaft, with two ends respectively connected to a lifting sub-mechanism; A push assembly, the left and right sides of the bottom end of which are rotatably connected to the two lifting sub-mechanisms respectively; A support assembly, horizontally arranged at the top of the pushing assembly; The lifting sub-mechanism comprises: A first motor is disposed in the frame; a speed reducer, whose power input end is connected to the power output end of the first motor; A sprocket assembly connected to the power output end of the reducer; a circular gear coaxially connected to the sprocket assembly and the connecting shaft; a sector gear meshing with the circular gear and rotatably connected to the push assembly; The recommendation component comprises: Four L-shaped push rods, each having a first rotation hole at the lower end, a second rotation hole at the upper end, and a linkage hole in the middle; the L-shaped push rods are rotatably connected to the support assembly through the four second rotation holes, and are rotatably connected to the lifting sub-mechanism through two of the linkage holes; Two connecting cross bars, the front and rear ends of which are rotatably connected to the two L-shaped push rods through the first rotating holes.

2. A lifting device for use in a battery swap station as claimed in claim 1, Features: The connecting cross bar, the L-shaped push rod and the supporting assembly form a parallelogram force-bearing structure.

3. A lifting device for use in a battery swap station as claimed in claim 1, Features: The shielding mechanism comprises: A second motor is disposed in the frame, with a power output end facing vertically upward; A shielding plate is connected to the power output end of the second motor, is located at the edge of the middle part of the I-shaped groove, and is higher than the top of the frame.

4. A lifting device for use in a battery swap station as claimed in claim 1, Features: The latch positioning mechanism comprises: a vertical guide rail disposed on an edge of the support assembly; A sliding block, slidably connected to the vertical guide rail; A positioning pin is vertically arranged at the top end of the slide block; A third motor is arranged at the edge of the supporting assembly, and a power output end is connected to the sliding block.

5. A lifting device for use in a battery swap station as claimed in claim 1, Features: Also includes: Four rollers are symmetrically arranged at the bottom end of the frame.

6. A lifting device for use in a battery swap station as claimed in claim 1, Features: Also includes: A PLC is connected to the lifting mechanism, the shielding mechanism and the latch positioning mechanism respectively.

7. A lifting device for use in a battery swap station as claimed in claim 6, Features: Also includes: A power supply module is connected with the PLC.

8. A lifting device for use in a battery swap station as claimed in claim 1, Features: The support assembly comprises: A lower push plate having a plurality of bull's eye through holes extending therethrough; An upper push plate is arranged at the upper end of the lower push plate, and a plurality of oblique bull's eye grooves are arranged at the bottom end facing the bull's eye through hole; A plurality of telescopic bull's eyes, the side wall ring is provided with an extension part, and the extension part is nested in the bull's eye through hole, and the rolling end faces the oblique pointed bull's eye groove; A plurality of load-bearing blocks are arranged on the upper end of the lower pushing plate.

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