Battery transfer device and battery replacing station

Abstract

The utility model provides a battery transfer device and a battery replacing station. The battery transfer device comprises a supporting frame, a lift car, a weight box, a transmission assembly and a guide part. The number of the transmission assemblies is at least two, the first end of each transmission assembly is connected with the weight box, the second end of each transmission assembly is connected with the lift car, and the second ends of the at least two transmission assemblies are located at the opposite corners of the lift car correspondingly. When the lift car moves in the height direction of the battery transfer device, the weight box can synchronously move in the reverse direction, and therefore when the motor drives the lift car to ascend, the weight box can move downwards, gravitational potential energy generated when the weight box descends can be used for reducing driving force consumed when the motor drives the lift car to ascend, and the service life of the motor is prolonged. The second ends of the at least two transmission assemblies are connected with the diagonal positions of the lift car correspondingly, so that the stress of the lift car is more balanced, it is guaranteed that the lift car can stably ascend or descend, and the stability and safety of battery transportation are improved.

Description

Technical Field

[0001] The utility model relates to the field of battery replacement for electric vehicles, and in particular to a battery transfer device and a battery replacement station. Background Art

[0002] The emission of automobile exhaust is still an important factor in environmental pollution. In order to control automobile exhaust, people have developed natural cars, hydrogen fuel cars, solar cars and electric cars to replace fuel cars, and among them, electric cars have the most application prospects.

[0003] Currently, electric vehicles primarily come in two types: direct-charging and quick-change. Direct-charging electric vehicles currently use on-site charging stations to charge the vehicles. However, these stations are not only difficult to manage, but also, with the increasing popularity of electric vehicles, centralized charging management is becoming increasingly difficult.

[0004] The quick-swap method requires the use of a battery swap station to quickly replace batteries. Currently, a battery swap station consists of a battery swap room, a charging room, a battery transfer device, and battery swap equipment. The battery transfer device transfers battery packs between the charging room and the battery swap equipment, while the battery swap equipment transfers battery packs between the battery transfer device and the electric vehicles in the battery swap room, enabling rapid battery pack replacement.

[0005] Existing battery transfer devices consist of a car, a support frame, and a drive mechanism. The drive mechanism uses a motor and a sprocket chain structure to raise and lower the battery-carrying car. However, as the demand for battery pack capacity increases, the weight of the battery pack also increases. This increases the driving force consumed by the drive mechanism to control the raising of the battery-carrying car, making the drive mechanism's motor susceptible to damage.

[0006] Therefore, technicians added a counterweight box to the battery transfer device. The counterweight box is connected to the car and moves in the opposite direction of the car's height. The gravitational potential energy generated by the counterweight box when it descends reduces the driving force consumed by the motor driving the car to rise, thereby increasing the life of the motor. Current counterweight boxes are generally connected to the center of the car on both sides through structures such as pulleys or chains. However, this fixing method requires certain force balance on the car. If the force on the car is too large locally, it may reduce the stability of the car's lifting. Utility Model Content

[0007] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the counterweight box is connected to the center of both sides of the car through structures such as pulleys or chains, which easily affects the stability of the car's lifting and lowering, and to provide a battery transfer device and a battery swap station.

[0008] The utility model solves the above technical problems through the following technical solutions:

[0009] A battery transfer device for transferring battery packs between a battery rack and a battery replacement device, the battery transfer device comprising a support frame, a car, a counterweight box, a transmission assembly, and a guide portion;

[0010] The car is movably connected to the support frame, and the car can move relative to the support frame along the height direction of the battery transport device, and the car is used to carry the battery pack;

[0011] The counterweight box and the guide portion are located on one side of the support frame in the length direction of the battery transport device, the number of the transmission assemblies is at least two, the first end of each transmission assembly is connected to the counterweight box, the second end of each transmission assembly is connected to the car, and the second ends of at least two transmission assemblies are respectively located at opposite corners of the car, and the guide portion is used to guide the counterweight box to move along the height direction of the battery transport device;

[0012] When the car moves in the height direction of the battery transporter, the counterweight box can move synchronously in the opposite direction.

[0013] In this solution, the car and counterweight box move in opposite directions along the height of the battery transporter. As the motor drives the car upward, the counterweight box moves downward. This allows the gravitational potential energy generated by the counterweight box's descent to be used to reduce the driving force consumed by the motor-driven car ascent, thereby increasing the motor's service life. Connecting the second ends of at least two transmission assemblies to diagonally opposite ends of the car further balances the forces acting on the car, ensuring stable ascent and descent, and improving the stability and safety of battery transportation.

[0014] Preferably, the transmission assembly includes a chain support seat, a chain mounting seat and a transmission chain;

[0015] The chain support seat is arranged on the top of the support frame, the chain mounting seat is arranged on the top of the car, and the chain support seat and the chain mounting seat in the same transmission assembly are located on the same side of the battery transfer device in the length direction and the width direction;

[0016] The first end of the transmission chain is connected to the counterweight box, the second end of the transmission chain is connected to the chain mounting seat, and the middle section of the transmission chain is movably connected to the chain support seat.

[0017] In this solution, the chain support supports the transmission chain to achieve transmission between the car and the counterweight box. The chain mounting seat is used to install a hook point on the car, facilitating the installation of the car and the transmission chain. The chain support and chain mounting seats in the same transmission assembly are arranged in a corresponding manner so that the section of the transmission chain located between the chain support and chain mounting seats can be as parallel as possible to the height direction of the battery transfer device. This allows a force to be applied to the car in the height direction of the battery transfer device, ensuring that the car can rise or fall stably and improving the stability and safety of battery transportation.

[0018] Preferably, the chain support seat includes a support portion, the support portion includes a pulley and a pulley fixing seat connected to each other, the transmission chain is connected to the pulley, and the axial direction of the pulley is parallel to the width direction of the battery transport device.

[0019] In this solution, the pulley cooperates with the transmission chain to support the transmission chain and facilitate the reciprocating movement of the transmission chain.

[0020] Preferably, the chain support seat further comprises an avoidance portion, the avoidance portion being provided at one end of the support portion facing the support frame in the width direction of the battery transport device;

[0021] The avoidance portion includes a connecting seat and a plurality of connecting columns, the connecting columns extend along the width direction of the battery transport device, the connecting seat is fixed on the support frame, and the two ends of the connecting columns are respectively connected to the connecting seat and the pulley fixing seat.

[0022] In this solution, the above arrangement can increase the distance between the transmission chain and the support frame, preventing the transmission chain from colliding and rubbing against the support frame during movement, thereby making the movement of the transmission chain smoother.

[0023] Preferably, a single transmission assembly includes a plurality of chain support seats spaced apart along the length direction of the battery transport device, the plurality of chain support seats are located on the same side in the width direction of the battery transport device and at the same height position of the battery transport device, and the middle section of a single transmission chain is movably connected to the plurality of chain support seats;

[0024] The chain support seat and the chain mounting seat, which are farthest from the counterweight box in the length direction of the battery transport device, are located on the same side of the length direction and the width direction of the battery transport device.

[0025] In this solution, by setting up multiple chain support seats, the connection position between the transmission chain and the car can be adjusted, making the movement of the car more stable, and the transmission chain between two adjacent chain support seats is in a horizontal state, and is not prone to slipping under the influence of gravity.

[0026] Preferably, the upper part of the car has a hanging beam, and the chain mounting seat includes a first mounting member, a second mounting member and a first hanging member, the first mounting member and the second mounting member are respectively arranged at the two ends of the hanging beam in the height direction of the battery transfer device, the first hanging member connects the first mounting member and the second mounting member, and the upper end of the first hanging member is connected to the second end of the transmission chain.

[0027] In this solution, a specific structure of a chain mounting seat is provided to facilitate the connection between the chain mounting seat and the hanging beam.

[0028] Preferably, the first mounting member has a first connecting hole, the second mounting member has a second connecting hole, the first connecting hole and the second connecting hole are correspondingly arranged and are long strip holes, and the first hanging member is passed through the first connecting hole and the second connecting hole.

[0029] In this solution, the above arrangement can reduce the installation accuracy requirements between the transmission chain and the chain mounting seat, thereby reducing the difficulty of installing the transmission chain.

[0030] Preferably, the counterweight box includes a shell, a counterweight block and a guide, and the counterweight block is installed inside the shell;

[0031] The guide portion includes a guide vertical beam extending in the height direction of the battery transport device, the guide vertical beam being fixed to the support frame at one end away from the car in the length direction of the battery transport device; the housing is provided with a first recessed portion on a side facing the car in the length direction of the battery transport device, the first recessed portion being engaged with the guide vertical beam;

[0032] The guide member is connected to the upper end surface of the shell, and the guide member is provided with a second recessed portion on a side of the battery transport device facing the car in the length direction, and the second recessed portion cooperates with the guide vertical beam.

[0033] In this solution, the first recessed portion of the housing cooperates with the guide vertical beam to achieve movement and guidance of the counterweight box in the height direction of the battery transporter. The second recessed portion of the guide member cooperates with the guide vertical beam to achieve further movement and guidance of the counterweight box in the height direction of the battery transporter.

[0034] Preferably, the battery transport device further comprises a limit plate, which is fixed on the support frame. When the counterweight box moves downward to the lowest position along the height direction of the battery transport device, the limit plate abuts against the shell.

[0035] In this solution, the limit plate is used to limit the maximum distance that the counterweight box can move downward, so as to prevent the counterweight box from moving downward excessively and affecting the battery transfer work.

[0036] Preferably, the housing includes a main body and a side plate detachably connected to the main body, the counterweight is disposed in the main body, and the side plate is used to block an opening of the main body;

[0037] And / or, the counterweight block includes a plurality of counterweight plates.

[0038] In this solution, the removable housing facilitates adjustment of the weight of the counterweight inside the housing, thereby adjusting the weight of the counterweight box itself according to the weight of the battery pack and the car, improving the counterweight effect. The design of the counterweight plate facilitates adjustment of the weight of the counterweight by adjusting the number of plates, making it more versatile.

[0039] Preferably, the battery transport device further comprises a protection mechanism, and the protection mechanism is provided on a side of the counterweight box away from the car in the length direction of the battery transport device.

[0040] In this solution, the protective mechanism is used to prevent maintenance personnel from directly touching the counterweight box, thereby ensuring the safety of the maintenance personnel.

[0041] Preferably, the protection mechanism includes a protection plate, which is provided on a side of the counterweight box away from the car in the length direction of the battery transport device, and the protection plate is connected to the support frame.

[0042] In this solution, the protective plate has a simple structure and is easy to produce and install.

[0043] Preferably, the protective mechanism also includes a connecting beam assembly, which includes two connecting beams arranged on both sides of the protective plate in the width direction of the battery transfer device, the first ends of the two connecting beams are connected to the support frame, and the second ends of the two connecting beams are connected to the corresponding sides of the protective plate.

[0044] In this solution, the protective plate is connected to the support frame through a beam structure, which facilitates avoiding the counterweight box and ensures the normal operation of the counterweight box.

[0045] Preferably, the car further comprises an extension assembly, the extension assembly comprising a guide rail mounting seat and an extension portion;

[0046] The guide rail mounting seat has a receiving groove formed by being recessed downward from the upper end surface. The protruding portion includes a fixed rail and a sliding rail. The fixed rail is connected to the guide rail mounting seat and the lower end of the fixed rail is at least partially received in the receiving groove. The sliding rail is movably connected to the upper end of the fixed rail, and the sliding rail is used to carry the battery pack.

[0047] In this solution, at least a portion of the fixed rail is placed in the receiving groove of the guide rail mounting seat, so that the protruding portion can be closer to the bottom of the battery transfer device, thereby smoothly removing the battery pack located further below the battery rack and improving the space utilization of the battery rack.

[0048] Preferably, the guide rail mounting seat comprises a plurality of guide rail mounting seat units spaced apart along the length direction of the battery transport device, and the gap between two adjacent guide rail mounting seat units forms the accommodating groove;

[0049] The fixed rail includes two fixed beams extending along the width direction of the battery transport device, and the two fixed beams are spaced apart along the length direction of the battery transport device;

[0050] The extending component also includes a connecting portion, which includes a first connecting plate and a second connecting plate. The first connecting plate is connected between two adjacent guide rail mounting units and is located below the fixed beam. The second connecting plate is located between the first connecting plate and the fixed rail in the height direction of the battery transport device. The second connecting plate is connected between the two fixed beams. The first connecting plate and the second connecting plate are connected.

[0051] In this solution, the above arrangement reduces the weight of the extension assembly while facilitating the connection between the fixed rail and the guide rail mounting seat.

[0052] A battery swap station, comprising the battery transfer device as described above.

[0053] In this solution, the battery transfer device is used to transfer battery packs between the battery racks and battery swap equipment in the battery swap station, so that the depleted battery packs can be placed in the battery racks for charging and the fully charged battery packs can be supplied to the electric vehicles.

[0054] The positive and progressive effect of this utility model is that the car and the counterweight box move in opposite directions in the height direction of the battery transport device. As a result, when the motor drives the car to rise, the counterweight box will produce a downward movement. The gravitational potential energy generated by the counterweight box's descent can be used to reduce the driving force consumed by the motor to drive the car to rise, thereby increasing the service life of the motor. The second ends of at least two transmission assemblies are connected to the diagonal positions of the car, which can achieve more balanced forces on the car, ensuring that the car can rise or descend stably, and improving the stability and safety of battery transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the three-dimensional structure of a battery transport device according to one embodiment of the present invention.

[0056] Figure 2 FIG. 2 is another schematic three-dimensional structural diagram of a battery transport device according to an embodiment of the present invention.

[0057] Figure 3 This is a side structural schematic diagram of a battery transport device according to an embodiment of the present invention.

[0058] Figure 4 This is another side structural schematic diagram of the battery transport device according to one embodiment of the present invention.

[0059] Figure 5 FIG. 2 is another schematic three-dimensional structural diagram of a battery transport device according to an embodiment of the present invention.

[0060] Figure 6 This is a schematic diagram of the three-dimensional structure of a chain support seat according to an embodiment of the present invention.

[0061] Figure 7 Schematic diagram of the top view of a battery transport device according to an embodiment of the present invention.

[0062] Figure 8 This is a schematic diagram of the three-dimensional structure of a chain mounting base according to an embodiment of the present invention.

[0063] Figure 9 This is a schematic diagram of the three-dimensional structure of a counterweight box according to an embodiment of the present invention.

[0064] Figure 10 This is another schematic diagram of the three-dimensional structure of the counterweight box according to an embodiment of the present invention.

[0065] Figure 11 This is a schematic diagram of the connection structure between the counterweight box and the second transmission chain in one embodiment of the present utility model.

[0066] Figure 12 It is a schematic three-dimensional structural diagram of an extension assembly according to an embodiment of the present invention.

[0067] Figure 13 This is a schematic diagram of the connection structure of the fixed rail and the guide rail mounting seat in one embodiment of the utility model.

[0068] Description of reference numerals:

[0069] Support frame 1

[0070] First supporting beam 11

[0071] Extension 111

[0072] Second supporting beam 12

[0073] First supporting vertical beam 13

[0074] Second supporting vertical beam 14

[0075] Car 2

[0076] Hanging beam 21

[0077] Drive mechanism 3

[0078] Motor 31

[0079] Drive shaft 32

[0080] First transmission chain 33

[0081] Counterweight box 4

[0082] Housing 41

[0083] First recessed portion 42

[0084] First recessed area 421

[0085] Second recessed area 422

[0086] Main body 43

[0087] Side panels 44

[0088] Guide 45

[0089] Second recessed portion 46

[0090] Second hanging member 47

[0091] Reinforcement 48

[0092] Transmission component 5

[0093] Second transmission chain 51

[0094] Chain support seat 52

[0095] First chain support seat 521

[0096] Second chain support seat 522

[0097] Pulley 523

[0098] Pulley fixing seat 524

[0099] protrusion 525

[0100] Connector 526

[0101] Connecting column 527

[0102] Chain mount 53

[0103] First mounting member 531

[0104] First connecting hole 532

[0105] Second mounting member 533

[0106] First hanging member 534

[0107] Fixing 535

[0108] Guide part 6

[0109] Guide beam 61

[0110] Limiting plate 71

[0111] Step surface 72

[0112] Protection mechanism 8

[0113] Protective plate 81

[0114] Connecting beam 82

[0115] Extension assembly 9

[0116] Guide rail mounting base 91

[0117] Accommodation slot 911

[0118] Rail Mount Unit 912

[0119] Extension portion 92

[0120] Fixed rail 921

[0121] Fixed beam 922

[0122] Slide Rail 923

[0123] First level slide rail 924

[0124] Secondary slide rail 925

[0125] First connecting plate 101

[0126] Second connecting plate 102

[0127] Distance sensor 110 DETAILED DESCRIPTION

[0128] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0129] This embodiment discloses a battery swap station, including a battery swap room, a charging room, a battery swap device (not shown in the figure) and a battery transfer device. The battery swap room is used for electric vehicles to dock and provide space for battery swapping. A charging rack and a charger are provided in the charging room. The charging rack is used to store battery packs, and the charger is used to charge the battery packs stored on the charging rack. The battery swap device travels back and forth between the battery swap room and the charging room, and is used to transport the depleted battery packs on the electric vehicles in the battery swap room to the charging room, and to transport the fully charged battery packs in the charging room to the electric vehicles in the battery swap room. The battery transfer device is arranged inside the charging room, and is used to transfer the battery packs between the charging rack and the battery swap device. The battery transfer device can remove the depleted battery packs on the battery swap device and place them on the charging rack for charging, and transfer the fully charged battery packs on the charging rack to the battery swap device.

[0130] like Figures 1-4 As shown, the battery transfer device includes a support frame 1, a car 2, a drive mechanism 3, a counterweight box 4, a transmission assembly 5 and a guide part 6.

[0131] like Figures 1-4 As shown, the support frame 1 includes two support beams and two support beams. The two support beams are respectively the first support beam 11 and the second support beam 12, and the two support beams are respectively the first support beam 13 and the second support beam 14. The first support beam 11 and the second support beam 12 are in the height direction of the battery transport device ( Figure 1 The Z direction of the battery transport device is arranged at intervals and extends along the length direction of the battery transport device ( Figure 1 (X direction in FIG. 2 ) First and second support beams 13, 14 are spaced apart in the lengthwise direction of the battery transporter and extend in the heightwise direction of the battery transporter. The upper ends of the first and second support beams 13, 14 are connected to the first support cross beam 11, and the lower ends of the first and second support beams 13, 14 are connected to the second support cross beam 12.

[0132] like Figures 1-4 As shown, the car 2 is located directly between the first support beam 11 and the second support beam 12 in the height direction of the battery transfer device, and is located between the first support beam 13 and the second support beam 14 in the length direction of the battery transfer device. The car 2 is movably connected to the support frame 1, and the car 2 can move relative to the support frame 1 along the height direction of the battery transfer device, so that the battery pack carried by the car 2 can also be raised and lowered accordingly, thereby moving to different height positions of the charging rack.

[0133] like Figure 3 and Figure 4As shown, the drive mechanism 3 includes a motor 31, a transmission shaft 32 and two first transmission chains 33. The motor 31 is fixed to the support frame 1, and the transmission shaft 32 is fixed to the lower end surface of the first support beam 11 and extends along the length direction of the battery transport device. One end of the transmission shaft 32 (the transmission shaft 32 is at Figure 4 The right end (in the figure) is connected to the output end of the motor 31, which drives the transmission shaft 32 to rotate about its own axis. Two first transmission chains 33 are attached to the transmission shaft 32 at either end along the length of the battery transporter. The lower ends of the two first transmission chains 33 are connected to the upper ends of the corresponding sides of the car 2. When the transmission shaft 32 rotates under the drive of the motor 31, it drives the first transmission chains 33 attached to the transmission shaft 32 to rotate, thereby driving the car 2 connected to the first transmission chains 33 to rise and fall.

[0134] Furthermore, in this embodiment, the first transmission chain 33 is connected to the width direction of the battery transfer device ( Figure 1 The center position of the car 2 in the Y direction) is ensured to ensure that the force on the car 2 is uniform and can stably carry the battery pack.

[0135] like Figure 3 and Figure 4 As shown, the first transmission chain 33 in this embodiment is a chain structure. Furthermore, the drive mechanism 3 also includes a gear, which is sleeved on the transmission shaft 32 and can rotate with the transmission shaft 32. The first transmission chain 33 is engaged with the gear to prevent the first transmission chain 33 from slipping on the transmission shaft 32, thereby improving the reliability of the elevator car 2.

[0136] In other alternative embodiments, the first transmission chain 33 may also be a structure such as a pulley or a wire rope. In this case, the gears may be replaced by smooth pulleys.

[0137] like Figure 3-Figure 5 As shown, the counterweight box 4 and the guide portion 6 are located on one side of the support frame 1 in the longitudinal direction of the battery transfer device. Specifically, the counterweight box 4 and the guide portion 6 are located on the side of the second support vertical beam 14 in the longitudinal direction of the battery transfer device, away from the car 2. This ensures that the counterweight box 4 is not in the movement path of the car 2, preventing the counterweight from interfering with the car 2 and the battery pack, and preventing the counterweight box 4 from affecting the battery transfer operation. The guide portion 6 is used to guide the counterweight box 4 in the height direction of the battery transfer device, preventing the counterweight box 4 from shifting when it is raised or lowered, and preventing the counterweight box 4 from interfering with other structures.

[0138] like Figures 1-4As shown, this embodiment includes two transmission assemblies 5, each of which has a first end connected to a counterweight box 4 and a second end connected to the car 2. When the car 2 moves along the height direction of the battery transporter, the car 2 and the counterweight box 4 move synchronously in opposite directions in the height direction of the battery transporter. As a result, when the motor 31 drives the car 2 upward, the counterweight box 4 will move downward. The gravitational potential energy generated by the descent of the counterweight box 4 can be used to reduce the driving force consumed by the motor 31 to drive the car 2 upward, thereby increasing the service life of the motor 31.

[0139] Specifically, if Figures 1-4 As shown, each transmission assembly 5 includes a chain support seat 52 , a chain mounting seat 53 and a second transmission chain 51 .

[0140] like Figure 3 and Figure 4 As shown, a chain support 52 is mounted on the top of the support frame 1, specifically on the side of the first support beam 11 in the width direction of the battery transporter. A chain mounting 53 is mounted on the top of the car 2 and is used to form a connection point on the car 2, facilitating the installation of the car 2 and the second transmission chain 51. The first end of the second transmission chain 51 is connected to the counterweight box 4, and the second end of the second transmission chain 51 is connected to the chain mounting 53. The middle section of the second transmission chain 51 is movably connected to the chain support 52, which supports the second transmission chain 51 to facilitate transmission between the car 2 and the counterweight box 4.

[0141] In other alternative embodiments, the chain support 52 can also be installed in other locations, such as on the side of the first support beam 11 in the longitudinal direction of the battery transporter. In this embodiment, the chain support 52 is installed on the side of the first support beam 11 in the width direction of the battery transporter because the side of the first support beam 11 in the width direction of the battery transporter can reserve more installation space for the chain support 52, ensuring the installation strength of both and reducing the difficulty of hanging the chain.

[0142] Furthermore, if Figure 3 and Figure 4 As shown, the chain support seat 52 and the chain mounting seat 53 in the same transmission assembly 5 are located on the same side of the length direction and the width direction of the battery transfer device, that is, a section of the second transmission chain 51 between the chain support seat 52 and the chain mounting seat 53 is roughly parallel to the height direction of the battery transfer device, so that a force along the height direction of the battery transfer device can be applied to the car 2, which is consistent with the moving direction of the car 2, thereby better controlling the movement of the car 2, ensuring that the car 2 can rise or fall stably, and improving the stability and safety of battery transportation.

[0143] Furthermore, if Figure 3 and Figure 4 As shown, both transmission assemblies 5 include two chain support bases 52 spaced apart along the length of the battery transporter, namely a first chain support base 521 and a second chain support base 522. The second support base is located on the side of the first support base in the length direction of the battery transporter, away from the counterweight box 4. The first chain bearing base is located directly above the counterweight box 4, and the second chain support base 522 is located directly above the chain mounting base 53. The first chain support base 521 and the second chain support base 522 are located on the same side of the battery transporter in the width direction and at the same height of the battery transporter. The middle section of the single second transmission chain 51 is movably connected to the first chain support base 521 and the second chain support base 522.

[0144] In this embodiment, the first chain support 521 is positioned directly above the counterweight box 4, such that the section of the second transmission chain 51 between the first chain support 521 and the counterweight box 4 is approximately parallel to the height of the battery transporter. The first chain support 521 and the second chain support 522 are positioned at the same height as the battery transporter, so that the section of the second transmission chain 51 between the first chain support 521 and the second chain support 522 is approximately parallel to the length of the battery transporter. In other words, the second transmission chain 51 between two adjacent chain support 52s is horizontal and less likely to slip under the influence of gravity. Furthermore, because the section of the second transmission chain 51 between the chain support 52 and the chain mounting 53 is approximately parallel to the height of the battery transporter, the entire second transmission chain 51 moves substantially only in the horizontal and vertical directions.

[0145] In this embodiment, the connection position between the second transmission chain 51 and the car 2 can be adjusted by adjusting the positions of the second chain support seat 522 and the chain mounting seat 53, which is more flexible.

[0146] In other alternative embodiments, a single transmission assembly 5 may include only one chain support 52 or a greater number of chain support 52, depending on actual needs. When the transmission assembly 5 includes more chain support 52, the chain support 52 and the chain mounting seat 53 that are farthest from the counterweight box 4 in the length direction of the battery transporter are located on the same side of the battery transporter in both the length and width directions.

[0147] like Figures 1-4 As shown, the second ends of the two transmission assemblies 5 in this embodiment are respectively located at the diagonals of the car 2, so that the force on the car 2 is more balanced, ensuring that the car 2 can rise or fall stably, and improving the stability and safety of battery transportation.

[0148] Specifically, if Figures 1-4As shown, the chain support bases 52 in the two transmission assemblies 5 are respectively mounted on different sides of the first support beam 11 in the width direction of the battery transporter, and the chain mounting bases 53 and the second transmission chain 51 in the two transmission assemblies 5 are both located on different sides of the first support beam 11 in the width direction of the battery transporter. The first chain support bases 521 in the two transmission assemblies 5 are both located at one end of the first support beam 11 in the length direction of the battery transporter, close to the counterweight box 4. The second chain support bases 522 in the two transmission assemblies 5 are respectively located at both ends of the first support beam 11 in the length direction of the battery transporter. The chain mounting bases 53 of the two transmission assemblies 5 are fixed to both ends of the car 2 in the length direction of the battery transporter, thereby achieving the connection of the second transmission chains 51 of the two transmission assemblies 5 to diagonal positions of the car 2.

[0149] In other alternative embodiments, the number of transmission assemblies 5 in a single battery transporter may be greater, but at least two transmission assemblies 5 should have their second ends located at opposite corners of the car 2. This embodiment provides only two transmission assemblies 5, which can ensure the stability of the load on the car 2 while reducing the number of transmission assemblies 5.

[0150] like Figure 6 As shown, the first chain support 521 and the second chain support 522 each include a support portion, which includes a pulley 523 and a pulley fixing seat 524 connected to each other. The pulley fixing seat 524 is connected to the first support beam 11. The second transmission chain 51 is connected to the pulley 523. The axis of the pulley 523 is parallel to the width of the battery transporter. Therefore, the second transmission chain 51 located between the first chain support 521 and the second chain support 522 moves along the length of the battery transporter. In this embodiment, the cooperation between the pulley 523 and the second transmission chain 51 supports the second transmission chain 51 and facilitates the reciprocating movement of the second transmission chain 51.

[0151] Among them, such as Figure 6 As shown, in this embodiment, the second transmission chain 51 is a chain structure, and the pulley 523 is a gear structure. The second transmission chain 51 is connected to the pulley 523. Pulley fixing bases 524 are provided on both sides of the gear in the width direction of the battery transporter to fix and protect the gear.

[0152] In other alternative embodiments, the second transmission chain 51 may also be a structure such as a pulley or a wire rope. In this case, the gears may be replaced by smooth pulleys.

[0153] Furthermore, in order to increase the distance between the second transmission chain 51 and the support frame 1, the chain support seat 52 also includes an avoidance portion, which is provided at one end of the support portion facing the support frame 1 in the width direction of the battery transfer device to prevent the second transmission chain 51 from colliding and rubbing with the support frame 1 during movement, thereby making the movement of the second transmission chain 51 smoother.

[0154] In this embodiment, the avoidance structures of the first chain support seat 521 and the second chain support seat 522 are different. In other alternative embodiments, the avoidance structures of the first chain support seat 521 and the second chain support seat 522 can also adopt the same structure.

[0155] Specifically, if Figure 6 and Figure 7 As shown, the first support beam 11 includes an extension section 111 extending in the longitudinal direction of the battery transporter toward one side of the counterweight box 4. Both sides of the extension section 111 in the width direction of the battery transporter are provided with protrusions 525 protruding toward the outside of the first support beam 11. The protrusions 525 are connected to the pulley fixing seat 524 and form a relief portion for the first chain support seat 521. The protrusions 525 can be integrally formed with the extension section 111, or the two can be manufactured separately and then assembled.

[0156] like Figure 6 and Figure 7 As shown, the avoidance portion of the second chain support seat 522 includes a connecting seat 526 and a plurality of connecting columns 527. The connecting columns 527 extend along the width direction of the battery transfer device. The connecting seat 526 is fixed on the first supporting beam 11. The two ends of the connecting column 527 are respectively connected to the connecting seat 526 and the pulley fixing seat 524.

[0157] In other alternative embodiments, the specific number of connecting pillars 527 can be designed to be one or more according to actual needs.

[0158] like Figure 1 、 Figure 2 and Figure 8 As shown, the upper portion of the car 2 has a hanging crossbeam 21 extending along the length of the battery transporter. The chain mounting base 53 includes a first mounting member 531, a second mounting member 533, a first hanging member 534, and a fixing member 535. The first mounting member 531 and the second mounting member 533 are respectively disposed at the ends of the hanging crossbeam 21 in the height direction of the battery transporter. One side of the first mounting member 531 and the second mounting member 533 are connected by the first hanging member 534, and the other side of the first mounting member 531 and the second mounting member 533 are connected by the fixing member 535. The upper end of the first hanging member 534 is connected to the second end of the second transmission chain 51.

[0159] Furthermore, if Figure 8 As shown, the first mounting member 531 has a first connection hole 532, and the second mounting member 533 has a second connection hole. The first connection hole 532 and the second connection hole are arranged correspondingly and are elongated holes. The first hanging member 534 is inserted through the first connection hole 532 and the second connection hole. The design of the elongated holes can reduce the installation precision requirements between the second transmission chain 51 and the chain mounting base 53, reduce the installation difficulty of the second transmission chain 51, and facilitate the connection between the chain mounting base 53 and the hanging crossbeam 21.

[0160] Furthermore, fixing holes for the fixing member 535 are provided on the first mounting member 531 and the second mounting member 533 . The diameter of the fixing holes matches the diameter of the fixing member 535 to improve the connection strength between the two.

[0161] like Figures 9-11 As shown, the counterweight box 4 includes a housing 41, a counterweight (not shown) and a guide 45, and the counterweight is installed inside the housing 41. A second hanging member is provided at the upper end of the housing 41, and the second hanging member is connected to the first end of the second transmission chain 51.

[0162] like Figure 2 、 Figure 5 and Figure 10 As shown, the guide member 45 is connected to the upper end surface of the housing 41. The housing 41 has a first recessed portion 42 on the side of the battery transporter facing the car 2 in the longitudinal direction of the battery transporter. The guide member 45 has a second recessed portion 46 on the side of the battery transporter facing the car 2 in the longitudinal direction of the battery transporter. The guide portion 6 includes a guide vertical beam 61 extending along the height of the battery transporter. The guide vertical beam 61 is fixed to the end of the second support vertical beam 14 in the longitudinal direction of the battery transporter, away from the car 2. Both the first recessed portion 42 and the second recessed portion 46 cooperate with the guide vertical beam 61 to guide the movement of the counterweight box 4 in the height direction of the battery transporter.

[0163] The battery transfer device will move as a whole along the length direction of the battery transfer device when it is working. During this process, the guide member 45 may collide with the guide vertical beam 61. Therefore, further, if Figure 11 As shown, the guide member 45 further includes a reinforcing rib, which is installed on the side of the second recessed portion 46 away from the car 2 in the longitudinal direction of the battery transfer device. The reinforcing rib can increase the strength of the guide member 45 in the longitudinal direction of the battery transfer device and improve the service life of the guide member 45.

[0164] Furthermore, the material of the guide member 45 is plastic or rubber. The guide member 45 made of plastic or rubber can reduce the friction coefficient between the guide vertical beam 61 and make the sliding of the counterweight box 4 smoother.

[0165] like Figure 5As shown, the battery transfer device further includes a limit plate 71, which is fixed to the support frame 1 and located below the counterweight box 4. When the counterweight box 4 moves downward to the lowest position along the height direction of the battery transfer device, the upper end surface of the limit plate 71 can abut against the housing 41 to limit the maximum downward movement of the counterweight box 4, thereby preventing the counterweight box 4 from moving too far downward and affecting the battery transfer operation.

[0166] Specifically, if Figure 10 As shown, the first recessed portion 42 includes, from top to bottom along the height direction of the battery transporter, a first recessed area 421 and a second recessed area 422. The width of the first recessed area 421 along the width direction of the battery transporter is smaller than the width of the second recessed area 422 along the width direction of the battery transporter. A step surface 72 is formed between the first recessed area 421 and the second recessed area 422. When the counterweight box 4 moves downward to its lowest position along the height direction of the battery transporter, the limit plate 71 abuts against the step surface 72. Compared to abutting the limit plate 71 against the bottom surface of the housing 41, the abutment of the limit plate 71 against the step surface 72 increases the travel range of the counterweight box 4.

[0167] like Figure 10 As shown, the housing 41 includes a main body 43 and side panels 44 detachably connected to the main body 43. The counterweight is disposed within the main body 43, and the side panels 44 are used to block the opening of the main body 43. The detachable housing 41 facilitates adjustment of the weight of the counterweight inside the housing 41, thereby adjusting the weight of the counterweight box 4 itself according to the weight of the battery pack and the car 2, thereby improving the counterweight effect.

[0168] Furthermore, the counterweight block in this embodiment includes a plurality of counterweight plates. The design of the counterweight plates facilitates adjusting the weight of the counterweight block by adjusting the number of counterweight plates, and is more versatile.

[0169] In other alternative embodiments, the counterweight box 4 may also adopt an integral non-detachable structure, or the counterweight block in the counterweight box 4 may be an integral structure, and the weight of the counterweight box 4 needs to be adjusted by replacing the entire counterweight block.

[0170] like Figure 1 and Figure 2 As shown, the battery transfer device further includes a protection mechanism 8, which is provided on the side of the counterweight box 4 away from the car 2 in the longitudinal direction of the battery transfer device. The protection mechanism 8 is used to prevent maintenance personnel from directly touching the counterweight box 4, thereby ensuring the safety of the maintenance personnel.

[0171] Specifically, if Figure 1 and Figure 2As shown, the protective mechanism 8 includes a protective plate 81 and a connecting beam assembly. The protective plate 81 is provided on the side of the counterweight box 4 away from the car 2 in the longitudinal direction of the battery transfer device. The connecting beam assembly includes two connecting beams 82 spaced apart in the width direction of the battery transfer device. The two connecting beams 82 are provided on both sides of the protective plate 81 in the width direction of the battery transfer device. The connecting beam 82 is an L-shaped structure. The first ends of the two connecting beams 82 are connected to the support frame 1, and the second ends of the two connecting beams 82 are connected to the corresponding sides of the protective plate 81. The protective plate 81 is connected to the support frame 1 through the connecting beam assembly, which is convenient for avoiding the counterweight box 4 and ensuring the normal operation of the counterweight box 4. The protective plate 81 has a simple structure and is easy to produce and install.

[0172] Furthermore, if Figure 2 As shown, the number of connecting beam assemblies in this embodiment is multiple, and the multiple connecting beam assemblies are spaced apart along the height direction of the support frame 1, thereby improving the connection strength between the protective plate 81 and the support frame 1 and reducing the overall weight of the protective mechanism 8.

[0173] like Figure 12 As shown, the car 2 also includes an extension component 9 for pushing out the battery pack carried by the car 2 to place it in a charging rack or battery replacement equipment.

[0174] like Figure 12 and Figure 13 As shown, the extension assembly 9 in this embodiment is a sunken extension structure. Specifically, the extension assembly 9 includes a guide rail mounting seat 91 and an extension portion 92. The guide rail mounting seat 91 has a receiving groove 911 formed by a downward depression from the upper end surface. In this embodiment, the guide rail mounting seat 91 includes a plurality of guide rail mounting seat units 912 spaced apart along the length of the battery transporter. The gap between two adjacent guide rail mounting seat units 912 forms the receiving groove 911, that is, the receiving groove 911 is continuous at both ends in the height direction of the battery transporter.

[0175] like Figure 12 and Figure 13 As shown, the extension 92 includes a fixed rail 921 and a slide rail 923. The fixed rail 921 is connected to the guide rail mounting base 91. The lower end of the fixed rail 921 is accommodated in the receiving groove 911, and the upper end of the fixed rail 921 is exposed outside the receiving groove 911. The slide rail 923 is disposed outside the receiving groove 911 and movably connected to the upper end of the fixed rail 921. The slide rail 923 is used to carry the battery pack. In this embodiment, a portion of the fixed rail 921 is placed in the receiving groove 911 of the guide rail mounting base 91, allowing the extension 92 to be closer to the bottom of the battery transporter, thereby allowing for smooth removal of battery packs located further below the battery rack, thereby improving the space utilization of the battery rack.

[0176] In other alternative embodiments, the accommodating groove 911 may also be a groove structure with an open upper end and a closed lower end.

[0177] In other alternative embodiments, the fixed rail 921 can also be fully accommodated in the accommodating groove 911. In this embodiment, the upper end of the fixed rail 921 is exposed from the accommodating groove 911 to facilitate the sliding cooperation between the fixed rail 921 and the sliding rail 923, prevent the sliding rail 923 from interfering with the groove wall of the accommodating groove 911, and ensure the reliability of the extension.

[0178] like Figure 13 As shown, the fixed rail 921 includes two fixed beams 922 extending along the width of the battery transporter, and the two fixed beams 922 are spaced apart along the length of the battery transporter. The extension assembly 9 also includes a connecting portion, which includes a first connecting plate 101 and a second connecting plate 102. The first connecting plate 101 is connected between two adjacent guide rail mounting seat units 912 and is located below the fixed beams 922. The second connecting plate 102 is located between the first connecting plate 101 and the fixed rail 921 in the height direction of the battery transporter, and the second connecting plate 102 is connected between the two fixed beams 922. The first connecting plate 101 and the second connecting plate 102 are connected. In this embodiment, the connection between the fixed rail 921 and the guide rail mounting seat 91 is achieved through the connection between the first connecting plate 101 and the second connecting plate 102, which reduces the weight of the extension assembly 9 while facilitating the connection between the fixed rail 921 and the guide rail mounting seat 91.

[0179] Furthermore, if Figure 13 As shown, a distance sensor 110 is also installed on the guide rail mounting seat unit 912. The distance sensor is used to detect the extension and / or retraction distance of the slide rail 923 so as to more accurately control the movement of the battery pack.

[0180] like Figure 12 As shown, the slide rail 923 in this embodiment is sleeved on the outside of the fixed rail 921, and the slide rail 923 slides with the outer surface of the fixed rail 921. That is, the width of the slide rail 923 in this embodiment is greater than the width of the fixed rail 921. When the contact area between the slide rail 923 and the battery pack is the same, the width of the fixed rail 921 can be reduced, thereby reducing the width of the receiving groove 911 and improving the strength of the guide rail mounting base 91.

[0181] In other alternative embodiments, the slide rail 923 may be provided on the inner side of the fixed rail 921 , and the slide rail 923 may be slidably engaged with the inner side surface of the fixed rail 921 .

[0182] like Figure 12As shown, the extension assembly 9 in this embodiment has a double extension structure. The slide rail 923 includes a primary slide rail 924 and a secondary slide rail 925. The primary slide rail 924 is slidably connected to the fixed rail 921, and the secondary slide rail 925 is slidably connected to the primary slide rail 924. The double extension structure of the extension assembly 9 can increase the range of movement of the battery pack in the width direction of the battery transport device, facilitating the transport of the battery pack.

[0183] In other alternative embodiments, the extending component 9 may also adopt a single extending manner.

[0184] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship of the device or element in normal use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention unless otherwise specified herein.

[0185] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A battery transfer device for transferring battery packs between a battery rack and a battery replacement device, characterized in that: The battery transfer device includes a support frame, a car, a counterweight box, a transmission assembly and a guide part; The car is movably connected to the support frame, and the car can move relative to the support frame along the height direction of the battery transport device, and the car is used to carry the battery pack; The counterweight box and the guide portion are located on one side of the support frame in the length direction of the battery transport device, the number of the transmission assemblies is at least two, the first end of each transmission assembly is connected to the counterweight box, the second end of each transmission assembly is connected to the car, and the second ends of at least two transmission assemblies are respectively located at opposite corners of the car, and the guide portion is used to guide the counterweight box to move along the height direction of the battery transport device; When the car moves in the height direction of the battery transporter, the counterweight box can move synchronously in the opposite direction.

2. The battery transport device according to claim 1, wherein: The transmission assembly includes a chain support seat, a chain mounting seat and a transmission chain; The chain support seat is arranged on the top of the support frame, the chain mounting seat is arranged on the top of the car, and the chain support seat and the chain mounting seat in the same transmission assembly are located on the same side of the battery transfer device in the length direction and the width direction; The first end of the transmission chain is connected to the counterweight box, the second end of the transmission chain is connected to the chain mounting seat, and the middle section of the transmission chain is movably connected to the chain support seat.

3. The battery transport device according to claim 2, wherein: The chain support seat includes a support portion, and the support portion includes a pulley and a pulley fixing seat connected to each other. The transmission chain is connected to the pulley, and the axial direction of the pulley is parallel to the width direction of the battery transport device.

4. The battery transport device according to claim 3, wherein: The chain support seat further includes an avoidance portion, the avoidance portion being provided at one end of the support portion facing the support frame in the width direction of the battery transport device; The avoidance portion includes a connecting seat and a plurality of connecting columns, the connecting columns extend along the width direction of the battery transport device, the connecting seat is fixed on the support frame, and the two ends of the connecting columns are respectively connected to the connecting seat and the pulley fixing seat.

5. The battery transport device according to claim 3, wherein: A single transmission assembly includes a plurality of chain support seats spaced apart along the length direction of the battery transport device, the plurality of chain support seats being located on the same side in the width direction of the battery transport device and at the same height position of the battery transport device, and a middle section of a single transmission chain being movably connected to the plurality of chain support seats; The chain support seat and the chain mounting seat, which are farthest from the counterweight box in the length direction of the battery transport device, are located on the same side of the length direction and the width direction of the battery transport device.

6. The battery transport device according to claim 2, wherein: The upper part of the car has a hanging beam, and the chain mounting seat includes a first mounting member, a second mounting member and a first hanging member. The first mounting member and the second mounting member are respectively arranged at the two ends of the hanging beam in the height direction of the battery transfer device. The first hanging member connects the first mounting member and the second mounting member, and the upper end of the first hanging member is connected to the second end of the transmission chain.

7. The battery transport device according to claim 6, wherein: The first mounting member has a first connecting hole, and the second mounting member has a second connecting hole. The first connecting hole and the second connecting hole are correspondingly arranged and are long strip holes. The first hanging member is passed through the first connecting hole and the second connecting hole.

8. The battery transport device according to claim 1, wherein: The counterweight box includes a shell, a counterweight block and a guide, and the counterweight block is installed inside the shell; The guide portion includes a guide vertical beam extending in the height direction of the battery transport device, the guide vertical beam being fixed to the support frame at one end away from the car in the length direction of the battery transport device; the housing is provided with a first recessed portion on a side facing the car in the length direction of the battery transport device, the first recessed portion being engaged with the guide vertical beam; The guide member is connected to the upper end surface of the shell, and the guide member is provided with a second recessed portion on a side of the battery transport device facing the car in the length direction, and the second recessed portion cooperates with the guide vertical beam.

9. The battery transport device according to claim 8, wherein: The battery transport device further includes a limit plate fixed to the support frame, and when the counterweight box moves downward to the lowest position along the height direction of the battery transport device, the limit plate abuts against the shell; And / or, the housing includes a main body and a side plate detachably connected to the main body, the counterweight is disposed in the main body, and the side plate is used to block an opening of the main body; And / or, the counterweight block includes a plurality of counterweight plates.

10. The battery transport device according to claim 1, wherein: The battery transport device further includes a protection mechanism, which is provided on a side of the counterweight box away from the car in the length direction of the battery transport device.

11. The battery transport device according to claim 10, wherein: The protection mechanism includes a protection plate, which is arranged on a side of the counterweight box away from the car in the length direction of the battery transport device, and the protection plate is connected to the support frame.

12. The battery transport device according to claim 11, wherein: The protective mechanism also includes a connecting beam assembly, which includes two connecting beams arranged on both sides of the protective plate in the width direction of the battery transport device, the first ends of the two connecting beams are connected to the support frame, and the second ends of the two connecting beams are connected to the corresponding sides of the protective plate.

13. The battery transport device according to claim 1, wherein: The car further includes an extension assembly, the extension assembly including a guide rail mounting seat and an extension portion; The guide rail mounting seat has a receiving groove formed by being recessed downward from the upper end surface. The protruding portion includes a fixed rail and a sliding rail. The fixed rail is connected to the guide rail mounting seat and the lower end of the fixed rail is at least partially received in the receiving groove. The sliding rail is movably connected to the upper end of the fixed rail, and the sliding rail is used to carry the battery pack.

14. The battery transport device according to claim 13, wherein: The guide rail mounting seat includes a plurality of guide rail mounting seat units spaced apart along the length direction of the battery transport device, and the gap between two adjacent guide rail mounting seat units forms the receiving groove; The fixed rail includes two fixed beams extending along the width direction of the battery transport device, and the two fixed beams are spaced apart along the length direction of the battery transport device; The extending component also includes a connecting portion, which includes a first connecting plate and a second connecting plate. The first connecting plate is connected between two adjacent guide rail mounting units and is located below the fixed beam. The second connecting plate is located between the first connecting plate and the fixed rail in the height direction of the battery transport device. The second connecting plate is connected between the two fixed beams. The first connecting plate and the second connecting plate are connected.

15. A battery swap station, characterized in that: The battery swap station includes the battery transport device according to any one of claims 1 to 14.

Images