A special maintenance equipment for power battery pack cooling system

Abstract

The application relates to a special maintenance device for a power battery pack cooling system, and belongs to the technical field of carrying devices. The special maintenance device for the power battery pack cooling system comprises a lifting platform, a portal frame and a fixing assembly. The portal frame is movably connected to the lifting platform, and the portal frame is movably provided with a movable part. The fixing assembly comprises a fixing part, a suction part and an abutting part. The fixing part is movably connected to the movable part, the suction part is movably connected to the fixing part, and the abutting part is movably connected to the fixing part. The abutting part comprises a first side facing the battery pack. Along the length direction of the first side, a plurality of supporting parts are movably arranged on the first side. The supporting parts are movably connected to the abutting part along a first direction. The first direction is perpendicular to the length direction of the first side. The device does not need manual force to carry the battery pack, and only needs manual auxiliary fixing measures, so that the labor burden is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of material handling equipment technology, and specifically relates to a special maintenance equipment for a power battery pack cooling system. Background Technology

[0002] To regulate the temperature of the battery pack, a cooling system is typically required. Common cooling systems include air cooling, liquid cooling, and direct cooling. Liquid cooling systems achieve cooling by circulating coolant within the battery pack, offering the advantage of high cooling efficiency. However, liquid cooling systems also have drawbacks. The coolant flows through pipes, and if these pipes are damaged, coolant leaks can occur. In such cases, the battery must be removed from the vehicle to repair the pipes. A common repair method involves lifting the vehicle using a gantry, moving a liftable vehicle body underneath the vehicle, unloading the battery pack onto the vehicle body, removing the battery pack, and then repairing the pipes. The current maintenance method has the disadvantage that, due to the limitation of the power battery pack's casing, conventional handling devices do not have enough operating space inside the casing to effectively secure the battery. Therefore, most of the time, the battery packs are disassembled and moved manually. However, this method of movement places a heavy burden on manpower. In actual production activities, after the battery packs are moved manually, they are often placed randomly on the ground. This may cause the position of the battery pack to change during the final assembly. After the installation position of the battery pack changes, the life assessment and working efficiency of the power battery will be affected. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a special maintenance equipment for the cooling system of power battery packs, which facilitates the removal of the battery pack from the casing.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: This application provides a dedicated maintenance device for a power battery pack cooling system, including a lifting platform, a gantry frame, and a fixing assembly. The gantry frame is movably connected to the lifting platform, and a movable part is movably provided on the gantry frame. The fixing assembly includes a fixing part, an adsorption part, and abutment parts. The fixing part is movably connected to the movable part along the height direction of the gantry frame. The adsorption part is movably connected to the fixing part along the height direction of the gantry frame and is used to adsorb one side of the top of the battery pack. The abutment part is movably connected to the fixing part along the height direction of the gantry frame and is used to abut against the side wall of the battery pack. The abutment part includes a first side facing the battery pack. Along the length direction of the first side, a plurality of support parts are movably provided on the first side. The support parts are movably connected to the abutment part along a first direction, which is perpendicular to the length direction of the first side.

[0005] In some embodiments, along the height direction of the gantry frame, mounting portions are provided on both sides of the fixing portion, the two mounting portions are connected by a connector, the fixing portion is provided with a through hole, the connector passes through the through hole, and the adsorption portion is connected to the mounting portion.

[0006] In some embodiments, the abutment portion is rotatably provided with a winding roller, and the abutment portion is provided with an output channel. Along the height direction of the gantry, the inlet of the output channel is located at the top of the abutment portion, the outlet of the output channel is located at the bottom of the abutment portion, and the outlet of the output channel is located on a first side. The fixing assembly also includes an elastic sheet, which is wound around the winding roller and passes through the output channel. The elastic sheet is configured to be in a wound state when it is discharged from the outlet of the output channel.

[0007] In some embodiments, along the height direction of the gantry, the outlet of the output channel is located below the support.

[0008] In some embodiments, the abutment portion is rotatably provided with a winding roller and an output channel. Along the height direction of the gantry, the inlet of the output channel is located at the top of the abutment portion, the outlet of the output channel is located at the bottom of the abutment portion, and the outlet of the output channel is located on the first side. The fixing assembly also includes a flexible sheet and a flexible sleeve. The flexible sheet is wound around the winding roller and passes through the output channel. One end of the flexible sleeve is connected to the abutment portion, and the other end of the flexible sleeve is connected to the movable end of the flexible sheet.

[0009] In some embodiments, along the length direction of the flexible sleeve, a plurality of limiting rings are provided at intervals on the inner wall surface of the flexible sleeve, and the flexible sheet passes through the limiting rings.

[0010] In some embodiments, the abutment portion is provided with a limiting housing, and the winding roller is disposed within the limiting housing.

[0011] In some embodiments, the abutment portion is provided with a fixing hoop.

[0012] In some embodiments, a gantry is movably connected to the lifting platform along its length. The lifting platform includes a first placement area and a second placement area. When the lifting platform is configured to remove the power battery pack, the first placement area is located below the vehicle body.

[0013] In some embodiments, a base is also included, the base being provided with a lifting assembly connected to the lifting platform.

[0014] The present invention has the following beneficial effects: On the one hand, the battery packs can be moved without manual force; only manual assistance and securing are required, greatly reducing the burden on manpower. On the other hand, the device requires little working space, making it suitable for use in confined spaces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the special maintenance equipment for the power battery pack cooling system of the present invention; Figure 2 This is a schematic diagram of the structure of the fixing component (showing the elastic sheet) of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the fixing component of the present invention (showing the through hole); Figure 5 for Figure 4 Enlarged view of point B; Figure 6 This is a schematic diagram of the structure of the fixing component (showing a flexible sheet) of the present invention; Figure 7 This is a schematic diagram of the structure of the fixing component of the present invention (showing the limiting housing); Figure 8 for Figure 7 Enlarged view of point C; Figure 9 This is a schematic diagram of the structure of the fixing component (showing the winding roller) of the present invention; Figure 10 for Figure 9 Enlarged view of point D; Figure 11 This is a schematic diagram of the mating structure of the flexible sheet and the abutment part of the present invention; Figure 12 for Figure 11 Enlarged view of point E.

[0016] Reference numerals: 1-Lifting platform, 11-First placement area, 12-Second placement area, 2-Gantry frame, 21-Moving part, 3-Fixing component, 31-Fixing part, 32-Adsorption part, 33-Abutting part, 331-First side, 34-Installation part, 35-Fixing hoop, 36-Elastic sheet, 37-Support part, 38-Through hole, 39-Hydraulic cylinder, 310-Flexible sleeve, 311-Limiting housing, 312-Wrapping roller, 313-Output channel, 314-Flexible sheet, 315-Limiting ring, 4-Base, 5-Lifting component, 6-Power battery pack. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0018] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0019] See Figure 1 , Figure 2 and Figure 3 This application provides a dedicated maintenance device for a power battery pack cooling system, including a lifting platform 1, a gantry frame 2, and a fixing assembly 3. The gantry frame 2 is movably connected to the lifting platform 1, and the gantry frame 2 is movably provided with a movable part 21. The fixing assembly 3 includes a fixing part 31, an adsorption part 32, and an abutment part 33. The fixing part 31 is movably connected to the movable part 21 along the height direction of the gantry frame 2. The adsorption part 32 is movably connected to the fixing part 31 along the height direction of the gantry frame 2 and is used to adsorb one side of the top of the battery pack. The abutment part 33 is movably connected to the fixing part 31 along the height direction of the gantry frame 2 and is used to abut against the side wall of the battery pack. The abutment part 33 includes a first side 331 facing the battery pack. Along the length direction of the first side 331, a plurality of support parts 37 are movably provided on the first side 331. The support parts 37 are movably connected to the abutment part 33 along a first direction perpendicular to the length direction of the first side 331.

[0020] The lifting platform 1 is used to support the power battery pack 6 during disassembly. Specifically, after the vehicle is lifted, the lifting platform 1 is moved underneath the vehicle to support the power battery pack 6, allowing for its disassembly. Once the power battery pack 6 is disassembled, the lifting platform 1 can be removed from under the vehicle.

[0021] The gantry 2 is movably connected to the lifting platform 1. On the one hand, it is convenient to adjust the position of the fixed component 3 connected to the gantry 2. On the other hand, when the power battery pack 6 is supported by the lifting platform 1, the lifting platform 1 can be partially set at the bottom of the vehicle. This allows the gantry 2 to be set on the outside of the vehicle, avoiding the risk that the lifting platform 1 will be unable to support the power battery pack 6 due to the obstruction of the gantry 2.

[0022] Of course, it is also possible to use a common lifting trolley to support the power battery pack 6 without using this device. When disassembling the power battery pack 6, the power battery pack 6 can be supported by a common lifting trolley and then transferred to the lifting platform 1 of this embodiment of the application via the lifting trolley.

[0023] The movable part 21 can be movably connected to the gantry 2 along the length direction of the gantry 2, which can be the direction connecting the two columns of the gantry 2. The specific structure of the movable part 21 being movably connected to the gantry 2 and the power structure driving the movable part 21 to move can be selected from existing structures, and will not be described in detail here.

[0024] The height direction of gantry 2 can be Figure 2 The direction indicated by the Z-axis. The lifting platform 1 can be equipped with a slide rail, and the gantry 2 can be slidably connected to the slide rail. The drive structure of the gantry 2 can be selected from existing structures.

[0025] The fixed part 31 is movably connected to the movable part 21 along the height direction of the gantry 2, which facilitates the adjustment of the position of the adsorption part 32 and the abutment part 33 relative to the battery pack in the height direction. By adjusting the position of the gantry 2 and the position of the movable part 21, the position of the adsorption part 32 and the abutment part 33 relative to the battery pack can be adjusted laterally.

[0026] The adsorption part 32 is used to adsorb and lift one side of the battery pack. There are mature products for the adsorption part 32 in the prior art, and a suitable model can be selected. For example, the adsorption part 32 can be a vacuum suction cup. The auxiliary components required for the operation of the adsorption part 32 are known to those skilled in the art and will not be described in detail here.

[0027] Although the adsorption section 32 can adsorb and lift the battery pack, the battery pack itself is heavy, and the top of the battery pack does not have much area available for adsorption due to the need to reserve wiring harness connection points and the pressure relief valves on individual battery cells. Therefore, lifting the battery pack entirely through the adsorption section 32 carries a high risk and has low reliability.

[0028] When the adsorption part 32 adsorbs one side of the top of the battery pack and lifts that side, the other side of the battery pack is still supported by the outer casing. This effectively reduces the adsorption burden on the adsorption part 32, so that the adsorption part 32 can achieve the purpose of lifting one side of the battery pack.

[0029] The specific structure for the movable connection between the support part 37 and the abutment part 33, as well as the power structure for driving the support part 37 to move, can be selected from existing technologically mature products, and will not be elaborated here.

[0030] The length direction of the first side 331 can be parallel to the length direction of the gantry 2, and the first direction can be the width direction of the abutment 33, so that the first direction can be perpendicular to the side wall of the battery pack. For example, the length direction of the first side 331 can be... Figure 2 The direction indicated by the X-axis, the first direction can be Figure 2 The direction indicated by the Y-axis.

[0031] The support portion 37 is movably connected to the abutment portion 33 along a first direction, such that the support portion 37 can include a retracted state and a state protruding from the first side 331. When the abutment portion 33 abuts against one side of the battery pack, the support portion 37 is in the retracted state due to the limitation of the side wall of the battery pack.

[0032] The support portion 37 may include a fixed end and a telescopic end. The fixed end is movably connected to the abutment portion 33, and the telescopic end is movably connected to the fixed end. A spring may be provided between the fixed end and the telescopic end, so that the telescopic end can protrude out of the first side 331 or retract into the first side 331.

[0033] For example, the support portion 37 can be configured as two.

[0034] Taking two support parts 37 as an example, in the initial state, the support parts 37 can be located on the side closer to the adsorption part 32, and the abutment part 33 abuts against the side wall of the battery pack. At this time, the support parts 37 are in a retracted state due to the obstruction of the side wall of the battery pack. During operation, the adsorption part 32 first descends and adsorbs one side of the battery pack. Then, the adsorption part 32 lifts the other side of the battery pack. When the adsorption part 32 lifts the battery pack, since the side wall of the battery pack no longer obstructs the support parts 37, all support parts 37 can extend to the bottom of the battery pack. Keeping one support part 37 stationary, the other support part 37 is driven to move towards the side of the battery pack that has not been lifted. This allows the entire battery pack to be lifted and supported by the support parts 37. Then, the fixing part 31 is lifted, and the battery pack is lifted a certain distance. At this time, fixing measures can be applied to fix the battery pack to the abutment part 33 to prevent the battery pack from tilting to the side away from the abutment part 33. Then, the battery pack is moved to the designated position by the gantry 2. The fixing measures can be to use an elastic sleeve to fit the battery pack onto the abutment part 33 and the outer periphery of the battery pack, or to use a clamp to fix the battery pack and the abutment part 33 together, etc.

[0035] Of course, since the abutment part 33 only abuts against one side of the battery pack, the battery pack may tilt away from the abutment part 33 when it is initially lifted. However, as is known to those skilled in the art, in order to improve the energy density of the power battery pack 6, the gap between the battery pack and the casing, and the spacing between adjacent battery packs are all set to be small. Therefore, although the lifted battery pack has the risk of tipping over, the space for the lifted battery pack to tip over is small because there are still other battery packs or casings blocking it, and it cannot completely detach from the abutment part 33.

[0036] Because the casing has reserved installation space for installing the processor, placing wiring harnesses, etc., the battery packs near the installation space have relatively large operating space. Therefore, when disassembling the battery packs using this device, you can start from the battery packs near the installation space and disassemble each battery pack in sequence.

[0037] The advantages of using this device to disassemble the battery pack are twofold: firstly, it eliminates the need for manual labor during handling, requiring only manual assistance in securing the pack, thus significantly reducing the workload; secondly, the device requires minimal workspace, making it suitable for use within confined spaces.

[0038] In this embodiment, the dynamic structure of the adsorption part 32 and the contact part 33 can be selected from the existing technology, and therefore will not be described in detail here.

[0039] See Figure 2 , Figure 4 and Figure 5 In some embodiments, mounting portions 34 are provided on both sides of the fixing portion 31 along the height direction of the gantry frame 2. The two mounting portions 34 are connected by a connector. The fixing portion 31 is provided with a through hole 38, the connector passes through the through hole 38, and the adsorption portion 32 is connected to the mounting portion 34.

[0040] The connector can be a bolt, meaning that the two mounting parts 34 can be connected by bolts.

[0041] The connector passes through the through hole 38, allowing the positions of the two mounting parts 34 relative to the fixing part 31 to be adjusted, thereby allowing the position of the adsorption part 32 relative to the fixing part 31 to be adjusted, which facilitates adjusting the position of the adsorption part 32 adsorbing the battery pack.

[0042] The adsorption unit 32 can be driven to move by an electric push rod or a hydraulic cylinder 39. The electric push rod or hydraulic cylinder 39 can be installed on the top mounting part 34. The two mounting parts 34 can be coaxially provided with connecting holes. The moving end of the electric push rod or hydraulic cylinder 39 can pass through the connecting holes and connect to the adsorption unit 32.

[0043] The shape of the through hole 38 can be set as needed; for example, it can be circular or rectangular.

[0044] See Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 and Figure 10In some embodiments, the abutment portion 33 is rotatably provided with a winding roller 312 and an output channel 313. Along the height direction of the gantry 2, the entrance of the output channel 313 is located at the top of the abutment portion 33, the exit of the output channel 313 is located at the bottom of the abutment portion 33, and the exit of the output channel 313 is located at the first side 331. The fixing component 3 also includes an elastic sheet 36, which is wound around the winding roller 312 and passes through the output channel 313. The elastic sheet 36 is configured to be in a wound state when discharged from the exit of the output channel 313.

[0045] The inlet of the output channel 313 is located at the top of the abutment 33, and the outlet is located at the bottom of the abutment 33. This allows the winding roller 312 to be located at the top of the abutment 33, which reduces the thickness requirement of the abutment 33 and allows the device to be used in narrow spaces. Furthermore, this makes the output channel 313 curved, which facilitates the winding state when the elastic sheet 36 is discharged.

[0046] The specific parameters for the bending setting of output channel 313 can be set as needed during implementation.

[0047] The elastic sheet 36 is made of a material capable of elastic deformation. Its specific material can be selected from existing materials. It should be noted that the technical solution of this application has relatively high requirements for the structural strength of the elastic sheet 36; therefore, when selecting it, it is necessary to ensure that the structural strength requirements are met.

[0048] The fact that the elastic sheet 36 can be in a wound state when it is discharged from the output channel 313 means that when the movable end of the elastic sheet 36 is discharged from the outlet of the output channel 313 and is not subjected to external force, the elastic sheet 36 can be restored to a wound state under the action of its own elastic restoring force. This wound state can be achieved by performing initial processing on the elastic sheet 36.

[0049] When the elastic sheet 36 can be processed before leaving the factory, in order to increase the service life of the elastic sheet 36, the movable end of the elastic sheet 36 can be set outside the output channel 313 when the device is not in use.

[0050] The winding axis of the winding structure formed by the elastic sheet 36 can be parallel to the bottom wall of the battery pack.

[0051] If the battery pack falls off when the adsorption section 32 lifts the battery pack, and the battery pack collides with the bottom wall of the casing, it will pose a significant safety hazard.

[0052] During operation, the winding roller 312 first winds up the elastic sheet 36, causing it to retract into the output channel 313. After the battery pack is lifted by the adsorption section 32, the winding roller 312 outputs the elastic sheet 36. At this time, the elastic sheet 36 can move to the bottom of the battery pack. Since the elastic sheet 36 can form a multi-layer winding structure, it can form a multi-layer buffer structure. In the event of an accident where the battery pack detaches from the adsorption section 32, the elastic sheet 36 can buffer the battery pack, improving the safety of handling the battery pack.

[0053] The advantage of using the elastic sheet 36 is that when the first side 331 of the abutment 33 abuts against the side wall of the battery pack, the elastic sheet 36 can be released below the battery pack, and because the elastic sheet 36 can deform, the requirement for the thickness of the abutment 33 is reduced, making the device suitable for use in narrow spaces.

[0054] See Figure 4 In some embodiments, along the height direction of the gantry 2, the outlet of the output channel 313 is located below the support 37.

[0055] If the outlet of the output channel 313 is set too high, when the battery pack falls on the elastic strip, the part of the elastic strip at the outlet of the output channel 313 is prone to become a fully convex side-up state, which may cause damage to the elastic strip.

[0056] The outlet of the output channel 313 is located below the support portion 37, so that the outlet of the output channel 313 can be as close as possible to the bottom of the abutment portion 33, reducing the upward bending of the aforementioned elastic strip and thus reducing the risk of damage to the elastic strip.

[0057] See Figure 6 and Figure 11 In some embodiments, the abutment part 33 is rotatably provided with a winding roller 312 and an output channel 313. Along the height direction of the gantry frame 2, the entrance of the output channel 313 is located at the top of the abutment part 33, the exit of the output channel 313 is located at the bottom of the abutment part 33, and the exit of the output channel 313 is located at the first side 331. The fixing component 3 also includes a flexible sheet 314 and a flexible sleeve 310. The flexible sheet 314 is wound around the winding roller 312 and passes through the output channel 313. One end of the flexible sleeve 310 is connected to the abutment part 33, and the other end of the flexible sleeve 310 is connected to the movable end of the flexible sheet 314.

[0058] The difference from the previous embodiments is that, in this embodiment, the flexible sheet 314 does not need to be made of an elastic material.

[0059] The flexible sheet 314 is wound around the winding roller 312, so that the flexible sheet 314 can be driven by the winding roller 312 to be discharged from or retracted into the output channel 313.

[0060] Since one end of the flexible sleeve 310 is connected to the abutment part 33 and the other end is connected to the movable end of the flexible sheet 314, the flexible sleeve 310 can be straightened when the flexible sheet 314 is discharged from the output channel 313. Conversely, when the flexible sheet 314 retracts into the output channel 313, the part of the flexible sheet 314 outside the output channel 313 is shortened, so that the flexible sleeve 310 can be in a folded state, that is, the peripheral wall of the flexible strip forms a wave-folded structure.

[0061] In this embodiment, the movable end of the flexible sheet 314 will not completely retract into the output channel 313. Therefore, a countersunk hole can be provided on the first side 331 of the abutment portion 33 to accommodate the movable ends of the flexible sleeve 310 and the flexible sheet 314.

[0062] When transporting the battery pack, the battery pack is first lifted by the adsorption part 32, and then the winding roller 312 outputs the flexible sheet 314. The flexible sheet 314 expands the flexible sleeve 310, and the two move together to the bottom of the battery pack. Then the adsorption part 32 can slowly lower the battery pack, and the winding roller 312 winds up the flexible sheet 314. During the winding process of the flexible sheet 314, the flexible sleeve 310 gradually folds, so that the flexible sleeve 310 can gradually lift the battery pack until the side wall of the battery pack no longer obstructs the support part 37.

[0063] The advantages of this design are twofold. First, it reduces the height the adsorption unit 32 needs to lift the battery pack, increasing safety. Second, when the flexible sleeve 310 and flexible sheet 314 move below the battery pack, the adsorption unit 32 can lower the battery pack, further improving safety. Third, the gradual folding and lifting of the battery pack via the flexible sleeve 310 is suitable for use in confined spaces and offers advantages such as high reliability and low cost.

[0064] In this embodiment, the driving structure of the winding roller 312 can be selected from the prior art. For example, the winding roller 312 can be driven to rotate by a motor.

[0065] See Figure 12 In some embodiments, along the length direction of the flexible sleeve 310, a plurality of limiting rings 315 are provided at intervals on the inner wall surface of the flexible sleeve 310, and the flexible sheet 314 passes through the limiting rings 315.

[0066] The folding direction of the flexible sleeve 310 can be controlled by the limiting ring 315.

[0067] In some embodiments, the abutment portion 33 is provided with a limiting housing 311, and the winding roller 312 is disposed inside the limiting housing 311.

[0068] The limiting housing 311 is used to limit the flexible sheet 314 and the elastic sheet 36, so that the flexible sheet 314 and the elastic sheet 36 released by the winding roller 312 can enter the output channel 313.

[0069] See Figure 2 In some embodiments, the abutment 33 is provided with a fixing hoop 35.

[0070] The fixing clamp 35 can be a split structure. When the battery pack is supported by the support part 37, the fixing clamp 35 can fix the battery pack so that the battery pack will not detach from the abutment part 33.

[0071] See Figure 1 In some embodiments, the gantry 2 is movably connected to the lifting platform 1 along the length of the lifting platform 1. The lifting platform 1 includes a first placement area 11 and a second placement area 12. When the lifting platform 1 is configured to remove the power battery pack 6, the first placement area 11 is located under the vehicle body.

[0072] The first placement area 11 can be used to place the power battery pack 6, and the second placement area 12 is used to place the battery pack. The battery pack can be moved to the second placement area 12 in sequence through the gantry 2, which can reduce the risk of the battery pack being placed randomly and causing the installation position to change.

[0073] Furthermore, when using this device to receive the power battery pack 6, the first placement area 11 can be located below the vehicle body, and the second placement area 12 can be located outside the vehicle body. The gantry 2 can be moved to the second placement area 12 so that the first placement area 11 can be as close as possible to the bottom of the vehicle.

[0074] See Figure 1 In some embodiments, a base 4 is also included, and the base 4 is provided with a lifting component 5, which is connected to the lifting platform 1.

[0075] The lifting assembly 5 can be a suitable product selected from the existing technology. For example, the lifting assembly 5 can be a hydraulic cylinder 39, or it can be a scissor lift structure.

[0076] The lifting platform 1 is connected to the lifting assembly 5, so that the lifting platform 1 can be moved by the lifting assembly 5.

[0077] The bottom of the base 4 can be equipped with casters, so that the position of the base 4 can be adjusted as needed.

[0078] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A special maintenance device for the cooling system of a power battery pack, characterized in that, include: Lifting platform (1); The gantry frame (2) is movably connected to the lifting platform (1), and the gantry frame (2) is movably provided with a movable part (21). The fixing component (3) includes a fixing part (31), an adsorption part (32), and abutting part (33). The fixing part (31) is movably connected to the movable part (21) along the height direction of the gantry frame (2). The adsorption part (32) is movably connected to the fixing part (31) along the height direction of the gantry frame (2). The adsorption part (32) is used to adsorb one side of the top of the battery pack. The abutting part (33) is movably connected to the fixing part (31) along the height direction of the gantry frame (2). The abutting part (33) is used to abut against the side wall of the battery pack. The abutting part (33) includes a first side (331) facing the battery pack. Along the length direction of the first side (331), the first side (331) is movably provided with a plurality of support parts (37). The support parts (37) are movably connected to the abutting part (33) along a first direction, which is perpendicular to the length direction of the first side (331).

2. The special maintenance equipment for the power battery pack cooling system according to claim 1, characterized in that, Along the height direction of the gantry frame (2), mounting parts (34) are provided on both sides of the fixing part (31), and the two mounting parts (34) are connected by a connector. The fixing part (31) is provided with a through hole (38), the connector passes through the through hole (38), and the adsorption part (32) is connected to the mounting part (34).

3. The special maintenance equipment for the power battery pack cooling system according to claim 1, characterized in that, The abutment part (33) is rotatably provided with a winding roller (312), and the abutment part (33) is provided with an output channel (313). Along the height direction of the gantry frame (2), the entrance of the output channel (313) is located at the top of the abutment part (33), the exit of the output channel (313) is located at the bottom of the abutment part (33), and the exit of the output channel (313) is located at the first side (331). The fixing component (3) also includes an elastic sheet (36). The elastic sheet (36) is wound around the winding roller (312) and passes through the output channel (313). The elastic sheet (36) is configured to be in a wound state when discharged from the exit of the output channel (313).

4. The special maintenance equipment for the power battery pack cooling system according to claim 3, characterized in that, Along the height direction of the gantry (2), the outlet of the output channel (313) is located below the support (37).

5. The special maintenance equipment for the cooling system of a power battery pack according to claim 1, characterized in that, The abutment part (33) is rotatably provided with a winding roller (312), and the abutment part (33) is provided with an output channel (313). Along the height direction of the gantry frame (2), the entrance of the output channel (313) is located at the top of the abutment part (33), the exit of the output channel (313) is located at the bottom of the abutment part (33), and the exit of the output channel (313) is located at the first side (331). The fixing component (3) also includes a flexible sheet (314) and a flexible sleeve (310). The flexible sheet (314) is wound around the winding roller (312), and the flexible sheet (314) passes through the output channel (313). One end of the flexible sleeve (310) is connected to the abutment part (33), and the other end of the flexible sleeve (310) is connected to the movable end of the flexible sheet (314).

6. The special maintenance equipment for the power battery pack cooling system according to claim 5, characterized in that, Along the length direction of the flexible sleeve (310), a plurality of limiting rings (315) are provided at intervals on the inner wall surface of the flexible sleeve (310), and the flexible sheet (314) passes through the limiting rings (315).

7. The special maintenance equipment for the power battery pack cooling system according to claim 3 or 5, characterized in that, The abutment part (33) is provided with a limiting housing (311), and the winding roller (312) is disposed inside the limiting housing (311).

8. The special maintenance equipment for the cooling system of a power battery pack according to claim 1, characterized in that, The abutment part (33) is provided with a fixing hoop (35).

9. The special maintenance equipment for the cooling system of a power battery pack according to claim 1, characterized in that, Along the length of the lifting platform (1), the gantry (2) is movably connected to the lifting platform (1). The lifting platform (1) includes a first placement area (11) and a second placement area (12). When the lifting platform (1) is configured to remove the power battery pack (6), the first placement area (11) is located below the vehicle body.

10. The special maintenance equipment for the cooling system of a power battery pack according to claim 1, characterized in that, It also includes a base (4), which is provided with a lifting assembly (5), which is connected to the lifting platform (1).

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