Double-layer battery replacing trolley system and battery replacing station with same

Abstract

The utility model relates to a double-layer battery replacing trolley system and a battery replacing station with the same, which comprise two first rails, a first battery replacing trolley crossing the two first rails, two second rails, a second battery replacing trolley crossing the two second rails, and a locking and unlocking assembly for disassembling and assembling a battery, a first walking component is arranged on the first battery replacing trolley, a second walking component is arranged on the second battery replacing trolley, the motion trail of the first battery replacing trolley is located above the motion trail of the second battery replacing trolley, and the height difference between the first battery replacing trolley and the second battery replacing trolley is larger than the height of at least one battery. The first battery replacing trolley and the second battery replacing trolley which are arranged up and down are used for carrying batteries and do not interfere with each other, the battery replacing rhythm can be accelerated, and the battery replacing efficiency is improved; a traditional battery cache region is omitted, the overall occupied area of the battery swap station can be effectively saved, and the manufacturing cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and in particular to a double-layer battery-exchanging trolley system and a battery-exchanging station having the same. Background Art

[0002] As new energy vehicle technology and services continue to upgrade and improve, the public's acceptance continues to increase, new energy vehicles are becoming more and more popular, and the corresponding new energy charging and swapping stations are increasingly entering people's field of vision. However, the current new energy charging and swapping stations still have some shortcomings in the battery transportation process. For example, most of the swapping stations only use one battery swapping cart. The battery swapping cart first moves the low-charged battery on the vehicle to the battery rack, and then moves the fully charged battery from the battery rack to the vehicle. During this period, there is a lot of waiting time for the battery swapping cart, which leads to a slow battery swapping rhythm at the swapping station.

[0003] Although some battery swap stations use two battery swap carts to interact with fully charged batteries and low-charged batteries, the two battery swap carts travel at the same height and interfere with each other. It is necessary to set up a battery cache area in the battery swap station to enable the interaction between fully charged batteries and low-charged batteries. Although this can improve the battery swapping cycle, it increases the floor space of the battery swap station and increases the construction cost.

[0004] Therefore, there is a need for a double-layer battery-swapping vehicle system and a battery-swapping station having the same, which can speed up the battery-swapping cycle, improve the battery-swapping efficiency, save the overall floor space of the battery-swapping station, and save manufacturing costs. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a double-layer battery-exchanging vehicle system and a battery-exchanging station having the same.

[0006] The technical solution of the utility model is as follows:

[0007] A double-decker battery-exchange trolley system comprises two first rails, a first battery-exchange trolley spanning the two first rails, two second rails, a second battery-exchange trolley spanning the two second rails, and a locking and unlocking assembly for disassembling and assembling batteries, wherein the first battery-exchange trolley is provided with a first walking component, the second battery-exchange trolley is provided with a second walking component, the movement trajectory of the first battery-exchange trolley is located above the movement trajectory of the second battery-exchange trolley, and the height difference between the first battery-exchange trolley and the second battery-exchange trolley is greater than the height of at least one of the batteries.

[0008] As a further improvement of the present invention, the double-layer battery-exchange cart system has a first position and a second position, the first position is used for disassembling and assembling the battery, and the second position is used for taking and placing the battery, the first battery-exchange cart and the second battery-exchange cart both move between the first position and the second position, and the locking and unlocking assembly includes a lifting component arranged below the first position and a plurality of locking and unlocking guns arranged on the lifting component.

[0009] As a further improvement of the present invention, the first battery-exchanging trolley comprises two first movable plates, one of the first movable plates moves on one of the first rails, and the other of the first movable plates moves on another of the first rails, and a first connecting plate is provided at one end of the two first movable plates away from the lifting component; the second battery-exchanging trolley comprises two second movable plates, one of the second movable plates moves on one of the second rails, and the other of the second movable plates moves on another of the second rails, and a second connecting plate is provided at one end of the two second movable plates away from the lifting component.

[0010] As a further improvement of the utility model, a plurality of first supporting arms and a first cylinder driving the first supporting arms to rotate are provided on the first movable plate; a plurality of second supporting arms and a second cylinder driving the second supporting arms to rotate are provided on the second movable plate.

[0011] As a further improvement of the present invention, the locking and unlocking assembly includes a first lifting component arranged on the first battery-exchanging trolley, a plurality of first locking and unlocking guns arranged on the first lifting component, a second lifting component arranged on the second battery-exchanging trolley, and a plurality of second locking and unlocking guns arranged on the second lifting component.

[0012] As a further improvement of the present invention, the two second rails are arranged between the two first rails, or the first rail is located above the second rail.

[0013] As a further improvement of the present invention, the first walking component includes a first motor and a first synchronous belt driven by the first motor, the first synchronous belt is connected to the first battery-changing cart, and a first walking component is provided between the first battery-changing cart and the first track; the second walking component includes a second motor and a second synchronous belt driven by the second motor, the second synchronous belt is connected to the second battery-changing cart, and a second walking component is provided between the second battery-changing cart and the second track.

[0014] As a further improvement of the present invention, there are two first synchronous belts, which are respectively arranged on both sides of the first battery-exchanging vehicle; there are two second synchronous belts, which are respectively arranged on both sides of the second battery-exchanging vehicle.

[0015] As a further improvement of the present invention, the first walking member is a roller or a slider; the second walking member is a roller or a slider.

[0016] A battery swap station comprises a foundation and a container arranged above the foundation, wherein a battery swap platform, a battery rack, a palletizer and the above-mentioned double-layer battery swap trolley system are arranged in the container, and the double-layer battery swap trolley system connects the battery rack and the battery swap platform.

[0017] As a further improvement of the present invention, the foundation is provided with a groove, the battery exchange platform and the battery rack both span above the groove, and the double-layer battery exchange vehicle system is arranged in the groove.

[0018] According to the utility model of the above scheme, the beneficial effects of the utility model are:

[0019] The utility model adopts a first battery-exchanging trolley and a second battery-exchanging trolley arranged up and down to transport batteries. They do not interfere with each other, which can speed up the battery-exchanging cycle and improve the battery-exchanging efficiency. The traditional battery cache area is eliminated, which can effectively save the overall floor space of the battery-exchanging station and save manufacturing costs. The overall expandability is strong, and the double-layer battery-exchanging trolley system can be set on the ground or in a groove of the foundation according to actual conditions, which effectively improves the overall compatibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the double-layer battery-swapping trolley system of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the first battery-swapping vehicle of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the second battery-swapping vehicle of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the locking and unlocking assembly of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the battery swap station of the utility model.

[0025] In the figure: 1. Foundation; 11. Groove; 3. Battery exchange platform; 4. Battery rack; 5. Palletizer; 6. Double-layer battery exchange trolley system; 61. First track; 62. First battery exchange trolley; 621. First movable plate; 622. First connecting plate; 623. First support arm; 624. First cylinder; 63. Second track; 64. Second battery exchange trolley; 641. Second movable plate; 642. Second connecting plate; 643. Second support arm; 644. Second cylinder; 65. Locking and unlocking assembly; 651. Lifting component; 652. Locking and unlocking gun; 661. First motor; 662. First synchronous belt; 663. First walking member; 671. Second motor; 672. Second synchronous belt; 673. Second walking member. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] See also Figure 1The utility model provides a double-layer battery-exchange trolley system, including two first rails 61, a first battery-exchange trolley 62 straddling the two first rails 61, two second rails 63, a second battery-exchange trolley 64 straddling the two second rails 63, and a locking and unlocking assembly 65 for disassembling and assembling batteries. The first battery-exchange trolley 62 is provided with a first walking component, and the first walking component drives the first battery-exchange trolley 62 to move on the two first rails 61. The second battery-exchange trolley 64 is provided with a second walking component, and the second walking component drives the second The battery exchange cart 64 moves on two second tracks 63. The movement trajectory of the first battery exchange cart 62 is above the movement trajectory of the second battery exchange cart 64. The height difference between the first battery exchange cart 62 and the second battery exchange cart 64 is greater than the height of at least one battery, so as to avoid interference between the battery carried on the second battery exchange cart 64 and the first battery exchange cart 62. The utility model adopts the first battery exchange cart 62 and the second battery exchange cart 64 arranged up and down to transport batteries, which do not interfere with each other, can speed up the battery exchange rhythm and improve the battery exchange efficiency.

[0030] As an embodiment of the utility model, the double-layer battery-changing trolley system has a first position and a second position, the first position is used for disassembling and installing the battery, and the second position is used for taking and placing the battery. The first battery-changing trolley 62 and the second battery-changing trolley 64 both move between the first position and the second position. Figure 4 The unlocking and locking assembly 65 includes a lifting component 651 disposed below the first position and a plurality of unlocking and locking guns 652 disposed on the lifting component 651. The unlocking and locking assembly 65 is fixedly disposed below the first position. The unlocking and locking guns 652 are lifted and lowered by the lifting component 651 to realize the disassembly and assembly of the battery. The specific working process is as follows:

[0031] After the vehicle reaches the first position, the first battery-swapping trolley 62 and the second battery-swapping trolley 64 perform the following movements according to their respective control instructions:

[0032] The first battery-exchange trolley 62 moves to the first position, and the lifting component 651 drives the unlocking gun 652 to rise to the battery-exchange position. The unlocking gun 652 removes the exhausted battery from the vehicle, and the lifting component 651 descends to put the exhausted battery on the first battery-exchange trolley 62. The lifting component 651 continues to descend to the bottom, and the first battery-exchange trolley 62 moves to the second position with the exhausted battery. The first battery-exchange trolley 62 puts down the exhausted battery and returns to the initial position.

[0033] The second battery-exchange cart 64 moves to the second position and takes away the fully charged battery. After waiting for the lifting component 651 to descend to the bottom, the second battery-exchange cart 64 moves to the first position, and the lifting component 651 rises, continues to rise after contacting the fully charged battery, and carries the fully charged battery to the battery-exchange position. The unlocking gun 652 installs the fully charged battery on the vehicle, and the lifting component 651 descends to the bottom, and the second battery-exchange cart 64 returns to the initial position.

[0034] Preferably, the double-decker battery-exchange cart system also has a third position for waiting for battery exchange, and the third position is adjacent to the first position, or the third position is arranged near the first position. After taking away the fully charged battery, the second battery-exchange cart 64 moves to the third position with the fully charged battery. After the lifting component 651 descends to the bottom, the second battery-exchange cart 64 can immediately move to the first position, which saves the time for the second battery-exchange cart 64 to reach the first position and effectively speeds up the battery exchange rhythm.

[0035] Preferably, according to actual usage requirements, the first battery exchange cart 62 and the second battery exchange cart 64 can replace each other, that is, the battery exchange cart that transports the depleted battery at the first position to the second position can be the first battery exchange cart 62 or the second battery exchange cart 64; correspondingly, the battery exchange cart that transports the fully charged battery at the second position to the first position can be the second battery exchange cart 64 or the first battery exchange cart 62. The control instructions of the first battery exchange cart 62 and the second battery exchange cart 64 are relatively flexible, which improves the overall practicality and compatibility.

[0036] See also Figure 2 and Figure 3, as an embodiment of the present utility model, the first battery swapping trolley 62 includes two first moving plates 621. One first moving plate 621 moves on a first track 61, and the other first moving plate 621 moves on another first track 61. At the end of the two first moving plates 621 away from the lifting member 651, there is a first connecting plate 622. The two first moving plates 621 and the first connecting plate 622 form a "C" shape. The second battery swapping trolley 64 includes two second moving plates 641. One second moving plate 641 moves on a second track 63, and the other second moving plate 641 moves on another second track 63. At the end of the two second moving plates 641 away from the lifting member 651, there is a second connecting plate 642. The two second moving plates 641 and the second connecting plate 642 form a "C" shape. A plurality of first support arms 623 and a first cylinder 624 for driving the rotation of the first support arms 623 are provided on the first moving plate 621. When the first battery swapping trolley 62 does not carry a battery, the first cylinder 624 drives the first support arms 623 to rotate and retract. When it is necessary to carry a battery, the first cylinder 624 drives the first support arms 623 to rotate and extend. A plurality of second support arms 643 and a second cylinder 644 for driving the rotation of the second support arms 643 are provided on the second moving plate 641. When the second battery swapping trolley 64 does not carry a battery, the second cylinder 644 drives the second support arms 643 to rotate and retract. When it is necessary to carry a battery, the second cylinder 644 drives the second support arms 643 to rotate and extend. It can be realized that when the lifting member 651 is in the ascending state, the empty first battery swapping trolley 62 and the second battery swapping trolley 64 can move to the first position, without waiting for the lifting member 651 to first descend to the bottom before they can move to the first position, which speeds up the overall battery swapping rhythm and improves the working efficiency.

[0037] As an embodiment of the present utility model, the unlocking and locking assembly 65 includes a first lifting member provided on the first battery swapping trolley 62, a plurality of first unlocking and locking guns provided on the first lifting member, a second lifting member provided on the second battery swapping trolley 64, and a plurality of second unlocking and locking guns provided on the second lifting member. The first battery swapping trolley 62 and the second battery swapping trolley 64 are independent of each other and can each complete the disassembly and assembly of the battery and the transportation of the battery. Moreover, the first battery swapping trolley 62 and the second battery swapping trolley 64 are each provided with a lifting member and an unlocking and locking gun, and can perform battery swapping operations at any position where the first battery swapping trolley 62 and the second battery swapping trolley 64 arrive according to the usage requirements. Compared with a fixed lifting member, it effectively overcomes the limitation of the battery swapping position and improves the overall usage compatibility.

[0038] As an embodiment of the present utility model, the arrangement of the first track 61 and the second track 63 can adopt the following three structures:

[0039] Structure 1: The two first rails 61 and the two second rails 63 are arranged on the same plane, and the two second rails 63 are arranged between the two first rails 61. The part where the first battery-swapping trolley 62 and the first rails 61 are connected is elevated, so that the movement trajectory of the first battery-swapping trolley 62 is located above the movement trajectory of the second battery-swapping trolley 64;

[0040] Structure 2: The first track 61 is located above the second track 63, and the portion where the first battery-swapping trolley 62 is connected to the first track 61 does not need to be elevated to achieve that the movement trajectory of the first battery-swapping trolley 62 is located above the movement trajectory of the second battery-swapping trolley 64;

[0041] Structure three: The two second rails 63 are both arranged between the two first rails 61 , and the first rail 61 is located above the second rail 63 , which can increase the distance between the first rail 61 and the second rail 63 and increase the activity space of the second battery-exchanging vehicle 64 .

[0042] As an embodiment of the utility model, the first walking component includes a first motor 661 and a first synchronous belt 662 driven by the first motor 661, the first synchronous belt 662 is connected to the first battery-changing trolley 62, and a first walking component 663 is provided between the first battery-changing trolley 62 and the first track 61; the second walking component includes a second motor 671 and a second synchronous belt 672 driven by the second motor 671, the second synchronous belt 672 is connected to the second battery-changing trolley 64, and a second walking component 673 is provided between the second battery-changing trolley 64 and the second track 63. Preferably, the first synchronous belt 662 and the second synchronous belt 672 are arranged in the following three ways (the structures of the first battery-changing trolley 62 and the second battery-changing trolley 64 are similar, and the structures of the first walking component and the second walking component are also similar, so only the first battery-changing trolley 62 is used as an example, and the usage of the second battery-changing trolley 64 is the same as that of the first battery-changing trolley 62):

[0043] Method 1: When the first battery-exchanging trolley 62 includes only two first movable plates 621, two first synchronous belts 662 are used, one first synchronous belt 662 is connected to one first movable plate 621, and the other first synchronous belt 662 is connected to the other first movable plate 621. The two first synchronous belts 662 are controlled to move synchronously by the first motor 661, thereby driving the two first movable plates 621 to move synchronously.

[0044] Mode 2: When the first battery-swapping trolley 62 includes two first movable plates 621 and a first connecting plate 622, a first synchronous belt 662 is used, and the first synchronous belt 662 is arranged on one side of the first battery-swapping trolley 62, that is, the first synchronous belt 662 is connected to one of the first movable plates 621. Under the connection of the first connecting plate 622, the first motor 661 controls the first synchronous belt 662 to drive the first battery-swapping trolley 62 to move as a whole;

[0045] Method three: When the first battery-exchanging cart 62 includes two first movable plates 621 and a first connecting plate 622, two first synchronous belts 662 are used. The two first synchronous belts 662 are respectively arranged on both sides of the first battery-exchanging cart 62, that is, one first synchronous belt 662 is connected to one first movable plate 621, and the other first synchronous belt 662 is connected to the other first movable plate 621. Compared with method one, the synchronization of the two first movable plates 621 can be improved, and compared with method two, the balance of the movement of the first battery-exchanging cart 62 can be improved.

[0046] Preferably, there are two second synchronous belts 672 , and the two second synchronous belts 672 are respectively arranged on both sides of the second battery-exchanging cart 64 .

[0047] Preferably, the first walking member 663 is a roller or a slider; the second walking member 673 is a roller or a slider.

[0048] See also Figure 5 The utility model provides a battery swap station, including a foundation 1 and a container arranged above the foundation 1, wherein a battery swap platform 3, a battery rack 4, a palletizer 5 and the above-mentioned double-layer battery swap cart system 6 are arranged in the container, and the double-layer battery swap cart system 6 connects the battery rack 4 and the battery swap platform 3, and the first position of the double-layer battery swap cart system 6 is arranged at the battery swap platform 3, and the second position is arranged at the battery rack 4. By adopting the double-layer battery swap cart system 6, the traditional battery cache area is eliminated, which can effectively save the overall floor space of the battery swap station and save manufacturing costs.

[0049] As an embodiment of the present utility model, the layout of the battery swap station can adopt the following three methods:

[0050] Method 1: The foundation 1 is provided with a groove 11, the battery exchange platform 3, the battery rack 4 and the palletizer 5 are arranged on the ground, the battery exchange platform 3 and the battery rack 4 are both across the top of the groove 11, and the double-layer battery exchange trolley system 6 is arranged in the groove 11, which can effectively reduce the excavation area. Since the palletizer 5 cannot descend to the height of the double-layer battery exchange trolley system 6 to pick up and place the battery, the battery rack 4 is required to have a lifting device for lifting the battery to realize the transfer of the battery between the double-layer battery exchange trolley system 6 and the palletizer 5;

[0051] Method 2: The foundation 1 is provided with a groove 11, the battery exchange platform 3 is arranged on the ground, and the battery rack 4, the palletizer 5 and the double-layer battery exchange trolley system 6 are all arranged in the groove 11, which can effectively increase the actual height of the battery rack 4 and increase the number of charging positions of the battery rack 4;

[0052] Method 3: All components of the battery swap station are set on the ground.

[0053] The overall expandability of the utility model is strong, and the battery rack 4, the palletizer 5, and the double-layer battery swapping trolley system 6 can be arranged on the ground or in the groove 11 of the foundation 1 according to the actual situation, effectively improving the overall use compatibility.

[0054] In summary, the utility model provides a double-layer battery swapping trolley system and a battery swapping station with the same. The first battery swapping trolley 62 and the second battery swapping trolley 64 arranged up and down are used to carry batteries, and they do not interfere with each other, which can speed up the battery swapping rhythm and improve the battery swapping efficiency; according to the actual use requirements, the first battery swapping trolley 62 and the second battery swapping trolley 64 can replace each other, and the control instructions of the first battery swapping trolley 62 and the second battery swapping trolley 64 are relatively flexible, improving the overall practicability and compatibility; two first moving plates 621 and the first connecting plate 622 form a "C" shape, two second moving plates 641 and the second connecting plate 642 form a "C" shape, the first cylinder 624 drives the first support arm 623 to rotate, and the second cylinder 644 drives the second support arm 643 to rotate, so that when the lifting member 651 is in the rising state, the empty first battery swapping trolley 62 and the second battery swapping trolley 64 can move to the first position, speeding up the overall battery swapping rhythm and improving the work efficiency; the two first moving plates 621 are connected by the first connecting plate 622, and two first synchronous belts 662 are respectively arranged on both sides of the first battery swapping trolley 62, which can improve the synchronism of the two first moving plates 621 and the balance of the movement of the first battery swapping trolley 62; by adopting the double-layer battery swapping trolley system 6, the traditional battery buffer area is cancelled, which can effectively save the overall floor area of the battery swapping station and reduce the manufacturing cost; the overall expandability is strong, and the battery rack 4, the palletizer 5, and the double-layer battery swapping trolley system 6 can be arranged on the ground or in the groove 11 of the foundation 1 according to the actual situation, effectively improving the overall use compatibility.

[0055] It should be emphasized that the above are only the preferred embodiments of the utility model, and there is no any form of limitation to the utility model. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still fall within the scope of the technical solution of the utility model.

Claims

1. A double-layer battery-swapping vehicle system, characterized in that: The invention comprises two first rails (61), a first battery-exchanging trolley (62) straddling the two first rails (61), two second rails (63), a second battery-exchanging trolley (64) straddling the two second rails (63), and a locking and unlocking assembly (65) for disassembling and assembling batteries. The first battery-exchanging trolley (62) is provided with a first walking component, and the second battery-exchanging trolley (64) is provided with a second walking component. The movement trajectory of the first battery-exchanging trolley (62) is located above the movement trajectory of the second battery-exchanging trolley (64), and the height difference between the first battery-exchanging trolley (62) and the second battery-exchanging trolley (64) is greater than the height of at least one of the batteries.

2. The double-decker battery-swapping vehicle system according to claim 1 is characterized in that: The double-layer battery-exchanging trolley system has a first position and a second position, the first position is used for disassembling and assembling the battery, and the second position is used for taking and placing the battery, the first battery-exchanging trolley (62) and the second battery-exchanging trolley (64) both move between the first position and the second position, and the locking and unlocking assembly (65) includes a lifting component (651) arranged below the first position and a plurality of locking and unlocking guns (652) arranged on the lifting component (651).

3. The double-decker battery-swapping vehicle system according to claim 2 is characterized in that: The first battery-exchanging trolley (62) comprises two first movable plates (621), one of the first movable plates (621) moves on one of the first rails (61), and the other of the first movable plates (621) moves on another of the first rails (61), and a first connecting plate (622) is provided at one end of the two first movable plates (621) away from the lifting component (651); the second battery-exchanging trolley (64) comprises two second movable plates (641), one of the second movable plates (641) moves on one of the second rails (63), and the other of the second movable plates (641) moves on another of the second rails (63), and a second connecting plate (642) is provided at one end of the two second movable plates (641) away from the lifting component (651).

4. The double-decker battery-swapping vehicle system according to claim 3 is characterized in that: The first movable plate (621) is provided with a plurality of first supporting arms (623) and a first cylinder (624) for driving the first supporting arms (623) to rotate; the second movable plate (641) is provided with a plurality of second supporting arms (643) and a second cylinder (644) for driving the second supporting arms (643) to rotate.

5. The double-decker battery-swapping vehicle system according to claim 1 is characterized in that: The locking and unlocking assembly (65) includes a first lifting component arranged on the first battery-changing trolley (62), a plurality of first locking and unlocking guns arranged on the first lifting component, a second lifting component arranged on the second battery-changing trolley (64), and a plurality of second locking and unlocking guns arranged on the second lifting component.

6. The double-decker battery-swapping vehicle system according to claim 1, characterized in that: The two second rails (63) are both arranged between the two first rails (61), or the first rail (61) is located above the second rail (63).

7. The double-decker battery-swapping vehicle system according to claim 1, characterized in that: The first walking component includes a first motor (661) and a first synchronous belt (662) driven by the first motor (661), the first synchronous belt (662) is connected to the first battery-changing trolley (62), and a first walking component (663) is provided between the first battery-changing trolley (62) and the first track (61); the second walking component includes a second motor (671) and a second synchronous belt (672) driven by the second motor (671), the second synchronous belt (672) is connected to the second battery-changing trolley (64), and a second walking component (673) is provided between the second battery-changing trolley (64) and the second track (63).

8. The double-decker battery-swapping vehicle system according to claim 7 is characterized in that: There are two first synchronous belts (662), and the two first synchronous belts (662) are respectively arranged on both sides of the first battery-exchanging vehicle (62); there are two second synchronous belts (672), and the two second synchronous belts (672) are respectively arranged on both sides of the second battery-exchanging vehicle (64).

9. The double-decker battery-swapping vehicle system according to claim 7, characterized in that: The first moving member (663) is a roller or a slider; the second moving member (673) is a roller or a slider.

10. A battery swap station, characterized in that: It comprises a foundation (1) and a container arranged above the foundation (1), wherein the container is provided with a battery exchange platform (3), a battery rack (4), a palletizer (5) and a double-layer battery exchange trolley system (6) as described in any one of claims 1 to 9, wherein the double-layer battery exchange trolley system (6) connects the battery rack (4) and the battery exchange platform (3).

11. The battery swap station according to claim 10, characterized in that: The foundation (1) is provided with a groove (11), the battery exchange platform (3) and the battery rack (4) both span above the groove (11), and the double-layer battery exchange vehicle system (6) is arranged in the groove (11).

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