A battery transfer transmission device and battery replacement station

Abstract

The present invention discloses a battery transfer transmission device and a battery exchange station, wherein the battery transfer transmission device includes a battery transfer mechanism for taking and placing batteries from a battery rack; a battery transmission mechanism, which is arranged on one side of the battery transfer mechanism and connected to the battery transfer mechanism for transmission, and is used to transport batteries between the battery transfer mechanism and a battery exchange platform; and a fire extinguishing box, which is adjacently arranged on the other side of the battery transfer mechanism, wherein a transportation mechanism is provided in the fire extinguishing box, which is connected to the battery transfer mechanism and the battery transmission mechanism for transmission, and is used to place and transport batteries. The present invention uses the transportation mechanism in the fire extinguishing box as a transfer position to store batteries taken from the battery rack by the battery transfer mechanism, thereby facilitating the cooperation between the battery transmission mechanism and the battery transfer mechanism to transport the batteries removed from the electric vehicle to the battery rack, thereby optimizing the transportation line of the battery, increasing the speed of battery replacement, and reducing the occupied space of the battery exchange station.

Description

Technical Field

[0001] The present invention belongs to the field of vehicle battery replacement, and specifically, relates to a battery transfer transmission device and a battery replacement station. Background Art

[0002] In the existing technology, battery swap stations for passenger cars are mostly used in urban areas of medium and large cities. However, the land cost in urban areas is high, and the available space is restricted by various planned urban buildings in the surrounding areas. It is difficult to find large pieces of land for the construction of battery swap stations.

[0003] Existing battery swap stations have battery racks in the battery compartment for storing or charging batteries. Stackers are set up to pick and place batteries between battery racks, which requires multiple transportation channels and battery swap channels. The battery transportation device occupies a large area and space, making it impossible to reduce the size of the battery swap station. In addition, the cost of landing is high, which is not suitable for small battery swap stations and cannot achieve large-scale layout of battery swap stations.

[0004] To solve the above problems, a battery transportation device is set up in the battery swap station opposite to the battery swap platform, and battery racks are set on both sides of the battery transportation device, which can transport batteries between the battery racks and the battery swap platform. The size of the battery transportation device can be reduced, the footprint of the battery swap station can be reduced, and the landing cost can be reduced. However, fully charged batteries and low-charged batteries can only be transported in sequence, which makes the battery transportation efficiency low and the battery swap speed of the vehicle slow. It is impossible to achieve rapid battery swapping at two workstations, and it is impossible to simultaneously reduce the area of ​​the battery swap station and ensure the battery swap efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the technical problems of low battery replacement efficiency and large occupied area in the prior art.

[0006] In order to solve the above technical problems, the first aspect of the present invention discloses a battery transfer transmission device, comprising:

[0007] A battery transfer mechanism, used to take batteries from and place batteries on a battery rack;

[0008] A battery transmission mechanism, which is arranged on one side of the battery transfer mechanism, is connected to the battery transfer mechanism for transmission, and is used to transport batteries between the battery transfer mechanism and the battery exchange platform;

[0009] A fire extinguishing box is arranged adjacent to the other side of the battery transfer mechanism. A transport mechanism is provided in the fire extinguishing box, which is connected to the battery transfer mechanism and the battery transport mechanism for placing and transporting batteries.

[0010] The present invention arranges a transportation mechanism in the fire extinguishing box, and the transportation mechanism is connected to the battery transfer mechanism and the battery transmission mechanism for transmission respectively. The transportation mechanism can be used as a transfer position to store the batteries taken down from the battery rack by the battery transfer mechanism, thereby avoiding the transportation channel. The battery transmission mechanism and the battery transfer mechanism cooperate to transport the batteries removed from the electric vehicle to the battery rack, thereby optimizing the transportation line of the batteries, being able to quickly transfer the batteries and increase the speed of battery replacement, thereby reducing the occupied space of the battery replacement station.

[0011] Furthermore, one end of the battery transmission mechanism is arranged below the battery transfer mechanism, and is connected to the transportation mechanism in the fire extinguishing box for transmission, so as to transport the battery for replacement through the battery transmission mechanism.

[0012] Preferably, the transport mechanism is extended along the extension direction of the battery transmission mechanism and is located on the same horizontal plane as the battery transmission mechanism.

[0013] Furthermore, the battery transfer mechanism includes:

[0014] Transfer platform for placing batteries;

[0015] A frame, wherein the transfer platform is arranged inside the frame;

[0016] A lifting device, arranged on the frame, for driving the transfer platform to move up and down;

[0017] The transfer platform is provided with a first transmission unit for transmitting the battery toward the transportation mechanism in the fire fighting box or the battery transmission mechanism.

[0018] Preferably, the transmission direction of the first transmission unit is consistent with the transmission direction of the battery transmission mechanism.

[0019] Preferably, the first transmission unit comprises a roller group, which is sequentially arranged in the middle part of the transfer platform along the transmission direction of the first transmission unit.

[0020] Furthermore, a second transmission unit is provided on the transfer platform, and the transmission direction of the second transmission unit is perpendicular to the transmission direction of the first transmission unit, and is used to transfer batteries between the battery racks;

[0021] The bearing surface of the second transmission unit is flush with the bearing surface of the first transmission unit.

[0022] Preferably, the second transmission unit includes a roller group, which is arranged in sequence along the transmission direction of the second transmission unit, and roller groups are respectively provided on the two ends of the transfer platform adjacent to and opposite to the fire box, which are staggered with the first transmission unit.

[0023] Further, the battery rack has a multi-layer support frame for placing batteries;

[0024] The support frame is provided with a third transmission unit, which has the same transmission direction as the second transmission unit and is used to transfer batteries between the transfer platform.

[0025] Preferably, the battery rack includes a first battery rack and a second battery rack, which are arranged on both sides of the battery transfer mechanism along the transmission direction of the second transmission unit.

[0026] Furthermore, the transfer platform is provided with an avoidance structure for avoiding the battery transmission mechanism below, so that the bearing surface of the battery transmission mechanism is higher than the bearing surface of the transfer platform.

[0027] Furthermore, the avoidance structure is extended along the transmission direction of the first transmission unit and is respectively arranged on the transfer platforms on both outer sides of the first transmission unit.

[0028] Preferably, the avoidance structure includes an avoidance channel extending on the transfer platform, and the avoidance channel runs through the upper and lower ends of the transfer platform.

[0029] Furthermore, the battery transmission mechanism includes:

[0030] A fourth transmission unit is provided below the transfer platform, and the avoidance structure matches the fourth transmission unit;

[0031] The fifth transmission unit is connected to the fourth transmission unit through a connecting member.

[0032] Preferably, the fifth transmission unit is transmission-connected to the fourth transmission unit via a connecting member.

[0033] Preferably, the fourth transmission unit and the fifth transmission unit include plate chain transmission units.

[0034] Furthermore, the transfer platform is provided with an avoidance opening matching the connecting piece for avoiding the connecting piece.

[0035] The second aspect of the present invention discloses a battery swap station, which has any of the battery transfer transmission devices described above. The battery swap station has the advantages of high battery swap efficiency and small footprint.

[0036] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0037] In the present invention, the battery transmission mechanism is arranged on one side of the battery transfer mechanism, and the fire extinguishing box is arranged adjacent to the other side of the battery transfer mechanism. The battery transfer and transportation device has a compact structure and occupies a small area, which reduces the occupied space of the battery exchange station. By arranging the transportation mechanism in the fire extinguishing box, the transportation mechanism is connected to the battery transfer mechanism and the battery transmission mechanism for transmission respectively. The transportation mechanism can store the batteries removed from the battery rack by the battery transfer mechanism as a transfer position, thereby avoiding the transportation channel. The battery transmission mechanism and the battery transfer mechanism cooperate to transport the batteries removed from the electric vehicle to the battery rack, which optimizes the transportation line of the battery, can quickly transport the battery and increase the speed of battery replacement.

[0038] The battery transfer and transportation device of the present invention can not only reduce the occupied space, reduce the size of the battery swap station, and reduce the landing cost, but also ensure high efficiency of battery swapping.

[0039] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0041] Figure 1 It is a schematic diagram of a battery transfer transmission device of the present invention;

[0042] Figure 2 The present invention Figure 1 Schematic diagram from another angle;

[0043] Figure 3 It is a schematic diagram of a battery transfer mechanism and a battery transmission mechanism of the present invention;

[0044] Figure 4 It is a schematic diagram of a transfer platform of the present invention;

[0045] Figure 5 is a schematic diagram of a battery rack of the present invention;

[0046] Figure 6 is a schematic diagram of another battery transfer transmission device of the present invention;

[0047] Figure 7 It is a schematic diagram of a battery exchange platform of the present invention.

[0048] In the figure: 1. Battery transfer mechanism; 11. Transfer platform; 111. First transmission unit; 112. Second transmission unit; 113. Avoidance structure; 114. Avoidance opening; 12. Frame; 13. Lifting device; 2. Battery transmission mechanism; 21. Fourth transmission unit; 22. Fifth transmission unit; 23. Connector; 24. Drive shaft; 3. Fire extinguisher box; 31. Transport mechanism; 32. Sixth transmission unit; 4. Battery exchange platform; 41. Seventh transmission unit; 5. Battery rack; 51. First battery rack; 52. Second battery rack; 53. Battery frame structure; 54. Support frame; 55. Third transmission unit; 6. Battery; 7. Battery exchange work area.

[0049] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] like Figures 1 to 7 As shown, the battery transfer transmission device described in the present invention includes a battery transfer mechanism 1, a battery transmission mechanism 2 and a fire extinguishing box 3.

[0054] The battery transfer mechanism 1 is used to take and place the battery 6 from the battery rack 5. The battery transmission mechanism 2 is arranged on one side of the battery transfer mechanism 1. The battery transmission mechanism 2 is connected to the battery transfer mechanism 1 for transmission, and is used to transport the battery 6 between the battery transfer mechanism 1 and the battery exchange platform 4.

[0055] The fire fighting box 3 is disposed adjacent to the other side of the battery transfer mechanism 1. A transport mechanism 31 is disposed in the fire fighting box 3, which is connected to the battery transfer mechanism 1 and the battery transport mechanism 2 for placing and transporting the battery 6.

[0056] In the present invention, the battery transmission mechanism 2 is arranged on one side of the battery transfer mechanism 1, and the fire extinguishing box 3 is arranged adjacent to the other side of the battery transfer mechanism 1. The battery transfer and transportation device has a compact structure and occupies a small area, which reduces the occupied space of the battery exchange station. By arranging a transportation mechanism 31 in the fire extinguishing box 3, the transportation mechanism 31 is connected to the battery transfer mechanism 1 and the battery transmission mechanism 2 for transmission respectively. The transportation mechanism 31 can store the battery 6 removed from the battery rack 5 by the battery transfer mechanism 1 as a transfer position, thereby avoiding the transportation channel. The battery transmission mechanism 2 and the battery transfer mechanism 1 cooperate to transport the battery 6 removed from the electric vehicle to the battery rack 5, which optimizes the transportation line of the battery, can quickly transport the battery and increase the speed of battery replacement.

[0057] The battery transfer and transportation device of the present invention can not only reduce the occupied space, reduce the size of the battery swap station, and reduce the landing cost, but also ensure high efficiency of battery swapping.

[0058] The fire extinguishing box 3 has an opening at one end opposite to the battery transfer mechanism 1, which is arranged opposite to the transport mechanism 31, so that the battery 6 can enter and exit the fire extinguishing box 3 through the opening. The bottom of the fire extinguishing box 3 has liquid that isolates the battery 6 and plays a role in isolating the air. The transport mechanism 31 is provided with a sixth transmission unit 32.

[0059] like Figure 2 As shown, one end of the battery transmission mechanism 2 is arranged below the battery transfer mechanism 1, and is connected to the transportation mechanism 31 in the fire box 3 for transmission, so as to transport the battery 6 for battery replacement through the battery transmission mechanism 2.

[0060] The battery transmission mechanism 2 is connected with the transportation mechanism 31 for transmission, and can transport the battery 6 temporarily stored in the fire box 3 to the battery exchange platform 4, and install the battery 6 on the electric vehicle through the battery exchange platform 4.

[0061] Preferably, the transport mechanism 31 is extended along the extension direction of the battery transmission mechanism 2 and is located on the same horizontal plane as the battery transmission mechanism 2 .

[0062] The bearing surface of the battery transmission mechanism 2 may be flush with the bearing surface of the transportation mechanism 31 , or may be slightly higher or lower than the bearing surface of the transportation mechanism 31 .

[0063] like Figure 3 to Figure 4 As shown, the battery transfer mechanism 1 includes a frame 12 , a transfer platform 11 and a lifting device 13 .

[0064] The frame 12 is used to support the transfer platform 11 and the lifting device 13. The transfer platform 11 is used to place the battery 6. The transfer platform 11 is arranged in the frame 12. The lifting device 13 is arranged on the frame 12, and is used to drive the transfer platform 11 to move up and down. The transfer platform 11 is provided with a first transmission unit 111, which is used to transfer the battery 6 to the transportation mechanism 31 in the fire box 3 or the battery transmission mechanism 2.

[0065] The first transmission unit 111 can cooperate with the transport mechanism 31 to transfer the battery 6 into the fire fighting box 3. The first transmission unit 111 can connect with the battery transmission mechanism 2 to transfer the battery 6 between the battery transfer mechanism 1 and the battery transmission mechanism 2.

[0066] The frame 12 is a rectangular frame, which is composed of a plurality of vertical beams and horizontal beams connected to adjacent vertical beams in sequence. The transfer platform 11 is located in the rectangular frame and is movably arranged up and down along the frame 12 .

[0067] The lifting device 13 is partially disposed on the top of the frame 12 , and partially connected to the transfer platform 11 .

[0068] Preferably, the transmission direction of the first transmission unit 111 is consistent with the transmission direction of the battery transmission mechanism 2. The first transmission unit 111 includes a roller group, which is sequentially arranged in the middle part of the transfer platform 11 along the transmission direction of the first transmission unit 111. The axial direction of the roller of the first transmission unit 111 is perpendicular to the transmission direction of the first transmission unit 111.

[0069] Some or all of the rollers are provided with driving force devices.

[0070] like Figure 4 As shown, the transfer platform 11 is provided with a second transmission unit 112, the transmission direction of the second transmission unit 112 is perpendicular to the transmission direction of the first transmission unit 111, and is used to transfer the battery 6 between the battery rack 5. The bearing surface of the second transmission unit 112 is flush with the bearing surface of the first transmission unit 111.

[0071] When the second transmission unit 112 is working and the first transmission unit 111 is not working, the transfer platform 11 transfers the battery 6 to the battery rack 5. When the second transmission unit 112 is not working, the transfer platform 11 transfers the battery 6 to the transportation mechanism 31 in the fire box 3.

[0072] Preferably, the second transmission unit 112 includes a roller group, which is sequentially arranged along the transmission direction of the second transmission unit 112, and the transfer platform 11 is provided with a roller group at both ends adjacent to and opposite to the fire box 3, respectively, which is staggered with the first transmission unit 111. The axial direction of the roller of the second transmission unit 112 is perpendicular to the transmission direction of the second transmission unit 112.

[0073] Part of the rollers of the first transmission unit 111 are arranged between the two roller groups of the second transmission unit 112, and the other part is arranged on the outside of the roller group of the second transmission unit 112, close to the side of the fire extinguishing box 3.

[0074] The transfer platform 11 is also provided with a driving force device for rotating some or all rollers of the first transmission unit 111 and the second transmission unit 112 .

[0075] like Figures 5 and 6 As shown, the battery transfer transmission device also includes a battery rack 5.

[0076] The battery rack 5 has a multi-layer support frame 54 for placing the battery 6. The support frame 54 is provided with a third transmission unit 55, which has the same transmission direction as the second transmission unit 112 and can be connected with the second transmission unit 112 for transmission, and is used to transfer the battery 6 between the transfer platform 11.

[0077] The third transmission unit 55 includes a roller group, which is arranged in the same direction as the second transmission unit 112. Two oppositely arranged cross beams are respectively arranged at opposite ends of the support frame 54, and the two roller groups are respectively arranged between the two opposite cross beams.

[0078] Preferably, a connecting rod is provided between the two groups of opposite cross beams to improve the connection strength of the support frame 54 .

[0079] The battery rack 5 includes a battery frame structure 53, and the support frame 54 is horizontally arranged in the battery frame structure 53. The battery frame structure 53 is a rectangular frame.

[0080] The battery rack 5 is provided with a driving force device for driving the roller of the third transmission unit 55 to rotate partially or completely.

[0081] The battery rack 5 includes a first battery rack 51 and a second battery rack 52 , which are arranged on both sides of the battery transfer mechanism 1 along the transmission direction of the second transmission unit 112 .

[0082] As a preferred embodiment, the battery transfer transmission device further includes a battery exchange platform 4. The battery exchange platform 4 is arranged opposite to the battery transfer mechanism 1, and the battery transmission mechanism 2 transmits and connects the battery exchange platform 4 and the battery transfer mechanism 1.

[0083] The battery exchange platform 4 is provided with a seventh transmission unit 41, which is connected to the battery transmission mechanism 2 for transmission. The battery exchange platform 4 is provided with an automatic battery exchange structure for replacing the battery 6 on the electric vehicle.

[0084] like Figure 4 As shown, the transfer platform 11 is provided with an avoidance structure 113 for avoiding the battery transmission mechanism 2 below, so that the bearing surface of the battery transmission mechanism 2 is higher than the bearing surface of the transfer platform 11 .

[0085] The present invention provides an avoidance structure 113 on the transfer platform 11, so that when the transfer platform 11 descends to the bottom of the frame 12, it can avoid the battery transmission mechanism 2 below. The transfer platform 11 can be further descended, so that the battery transmission mechanism 2 passes through the avoidance structure 113, so that the bearing surface of the battery transmission mechanism 2 is higher than the bearing surface of the transfer platform 11, and the battery 6 falls on the battery transmission mechanism 2.

[0086] The avoidance structure 113 is extended along the transmission direction of the first transmission unit 111 and is respectively disposed on the transfer platforms 11 at two outer sides of the first transmission unit 111 .

[0087] The two avoidance structures 113 are arranged alternately with the second transmission unit 112. Some rollers of the second transmission unit 112 are arranged between the two avoidance structures 113, and some are arranged outside the two avoidance structures 113.

[0088] Preferably, the avoidance structure 113 comprises an avoidance channel extending on the transfer platform 11, and the avoidance channel runs through the upper and lower ends of the transfer platform 11. The avoidance channel is rectangular.

[0089] like Figure 3 As shown, the battery transmission mechanism 2 includes a fourth transmission unit 21 and a fifth transmission unit 22 which are extended in sequence.

[0090] The fourth transmission unit 21 is disposed below the transfer platform 11, and the avoidance structure 113 matches the fourth transmission unit 21, and is used for connecting and transmitting the transfer platform 11. The fifth transmission unit 22 is connected to the fourth transmission unit 21 through a connecting member 23, and is sequentially extended with the fourth transmission unit 21.

[0091] Furthermore, the fifth transmission unit 22 is transmission-connected to the fourth transmission unit 21 via a connecting member 23. The driving force device of the battery transmission mechanism 2 is arranged on the fifth transmission unit 22, and the fourth transmission unit 21 is driven to operate via the fifth transmission unit 22.

[0092] Preferably, the fourth transmission unit 21 and the fifth transmission unit 22 include plate chain transmission units. The plate chain transport unit of the fourth transmission unit 21 is arranged in the avoidance channel.

[0093] The fourth transmission unit 21 and the fifth transmission unit 22 include a transmission shaft 24, which is connected between the plate chain transmission units arranged opposite to each other on both sides to drive the plate chain transmission units to rotate. The transmission shafts 24 of the fourth transmission unit 21 and the fifth transmission unit 22 are arranged at one end close to each other, and the connecting member 23 is transmission-connected to the two transmission shafts 24.

[0094] Furthermore, the transfer platform 11 is provided with an escape opening 114 matching the connecting member 23 for avoiding the connecting member 23. The escape opening 114 is arranged at one end away from the fire fighting box 3 and located on the outer side of the second transmission unit 112 between the two escape structures 113.

[0095] The roller of the second transmission unit 112 located between the two avoidance structures 113 is arranged on the inner side of the roller of the second transmission unit 112 located outside the two avoidance structures 113, for avoiding the avoidance opening 114 and the roller of the first transmission unit 111 respectively.

[0096] like Figure 7 As shown, the present invention also provides a battery swap station having any of the battery transfer transmission devices described above.

[0097] The present invention can improve the transportation efficiency of the battery by providing the battery transfer transmission device, thereby improving the battery replacement efficiency, and at the same time can save space.

[0098] The battery swap station includes a battery swap warehouse and a battery warehouse (not shown in the figure). A battery swap work area 7 is provided in the battery swap warehouse. The battery swap platform 4 is arranged on the battery swap work area 7.

[0099] The battery transfer mechanism 1, the battery rack 5, the fire box 3 and the fourth transmission unit 21 are arranged in the battery compartment. The battery transmission mechanism 2 passes through the battery compartment and connects with the battery exchange platform 4 for transmission.

[0100] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A battery transfer transmission device, characterized in that: include, A battery transfer mechanism, used to take batteries from and place batteries on a battery rack; A battery transmission mechanism, which is arranged on one side of the battery transfer mechanism, is connected to the battery transfer mechanism for transmission, and is used to transport batteries between the battery transfer mechanism and the battery exchange platform; A fire extinguishing box is arranged adjacent to the other side of the battery transfer mechanism and is used to isolate the faulty battery; a transport mechanism is arranged in the fire extinguishing box and is connected to the battery transfer mechanism and the battery transmission mechanism for transmission, and is used to place and transport the battery; one end of the battery transmission mechanism is arranged below the battery transfer mechanism and is connected to the transport mechanism in the fire extinguishing box for transmission, and is used to transport the battery for battery replacement through the battery transmission mechanism; The battery transfer mechanism includes a transfer platform for placing batteries, a frame and a lifting device, the transfer platform is arranged in the frame, and the lifting device is arranged on the frame to drive the transfer platform to move up and down; The transfer platform is provided with a first transmission unit, which is used to transfer batteries to the transportation mechanism in the fire extinguishing box or the battery transmission mechanism; the transfer platform is provided with a second transmission unit, the transmission direction of the second transmission unit is perpendicular to the transmission direction of the first transmission unit, and is used to transfer batteries between battery racks; the bearing surface of the second transmission unit is flush with the bearing surface of the first transmission unit; When the second transmission unit is working and the first transmission unit is not working, the battery is transferred between the transfer platform and the battery rack; when the second transmission unit is not working and the first transmission unit is working, the battery is transferred between the transfer platform and the transportation mechanism in the fire extinguishing box.

2. A battery transfer transmission device according to claim 1, characterized in that: The battery rack has a multi-layer support frame for placing batteries; The support frame is provided with a third transmission unit, which has the same transmission direction as the second transmission unit and is used to transfer batteries between the transfer platform.

3. A battery transfer transmission device according to any one of claims 1-2, characterized in that: The transfer platform is provided with an avoidance structure for avoiding the battery transmission mechanism below so that the bearing surface of the battery transmission mechanism is higher than the bearing surface of the transfer platform.

4. A battery transfer transmission device according to claim 3, characterized in that: The avoidance structure is extended along the transmission direction of the first transmission unit and is respectively arranged on the transfer platforms on both outer sides of the first transmission unit.

5. A battery transfer transmission device according to claim 3, characterized in that: The battery transmission mechanism comprises: A fourth transmission unit is provided below the transfer platform, and the avoidance structure matches the fourth transmission unit; The fifth transmission unit is connected to the fourth transmission unit through a connecting member.

6. A battery transfer transmission device according to claim 5, characterized in that: The transfer platform is provided with an avoidance opening matching the connecting piece and used for avoiding the connecting piece.

7. A battery swap station, characterized in that: A battery transfer transmission device as described in any one of claims 1-6.

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