Transportation holding fixture

Abstract

The utility model belongs to battery production technical field discloses a kind of transport holding tool, including transport trolley and clamp. Multiple clamps are arranged, multiple clamps are spaced and detachably arranged in transport trolley, and the clamp includes the supporting member for supporting battery pack and the locking structure for fixing battery pack, and the locking structure includes fixed end and movable end spaced in the battery pack peripheral side;Wherein, the locking structure has locking state and open state, when the locking structure is in locking state, movable end and fixed end are close to each other, and can be all contacted with battery pack, when the locking structure is in open state, movable end and fixed end are far away from each other. The utility model's transport holding tool, locking structure is in locking state, movable end and fixed end are close to each other, and can be all contacted with battery pack, avoid appearing in the process of transportation to shake, make the stable and reliable in the process of transportation.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a transport and holding tool. Background Technology

[0002] With the rapid development of new energy technologies, cylindrical batteries are widely used in power batteries, energy storage batteries, and other fields due to their advantages such as high energy density and stable charge and discharge performance. In the assembly and production process of horizontal cylindrical battery boxes, the welding quality of the cells and conductive connectors directly determines the overall electrical performance and structural reliability of the battery box, and the precise control of the cell's posture during transportation and welding is one of the core prerequisites for ensuring welding quality.

[0003] Specifically, the assembly of the horizontal cylindrical battery box requires the initial fitting of multiple cylindrical batteries with a serpentine conductive plate (referred to as the "serpentine plate"). This involves inserting the cylindrical batteries one by one into the pre-set cell positioning holes or slots on the serpentine plate to achieve initial fixation, forming a "cell-serpentine plate" pre-assembly unit. Subsequently, this pre-assembly unit needs to be transported from the initial assembly station to a dedicated welding station, where welding equipment performs laser welding, resistance welding, and other processes on the contact points between the cell tabs and the serpentine plate to achieve electrical connection and structural reinforcement.

[0004] The existing pre-assembled units have a relatively complex transportation structure, and they are prone to shaking during transportation. Utility Model Content

[0005] The purpose of this utility model is to provide a transport holding fixture, which aims to solve the problem that the transport structure in the prior art is relatively complex and the pre-assembled unit is prone to shaking during transport. The transport holding fixture provided by this utility model has a simple structure and can improve the transport stability of the pre-assembled unit.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A transport holding fixture, comprising:

[0008] Transport trolley;

[0009] Multiple clamps, spaced apart and detachably mounted on the transport trolley, each clamp including a support for supporting a battery pack and a locking structure for securing the battery pack, the battery pack comprising multiple cylindrical batteries, and the locking structure including a fixed end and a movable end spaced apart around the periphery of the battery pack; wherein...

[0010] The locking structure has a locked state and an open state. When the locking structure is in the locked state, the movable end and the fixed end are close to each other and can abut against the battery pack. When the locking structure is in the open state, the movable end and the fixed end are far apart from each other.

[0011] The beneficial effects of the above embodiments of this utility model are as follows:

[0012] The transport holding fixture provided by this utility model has the following features: after the battery pack is placed on the support, the locking structure is in a locked state, with the movable end and fixed end close to each other and able to abut against the battery pack, preventing shaking during transport and ensuring a stable and reliable transport process; after the battery pack is removed, the locking structure is in an open state, preparing for subsequent transport of the battery pack; the clamp can be detachably installed on the transport trolley, facilitating disassembly and assembly, and also making it convenient for the transport trolley to transport other components, improving the flexibility of use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the transport holding fixture provided in this embodiment of the utility model;

[0014] Figure 2 This is a top view of the transport holding fixture provided in this embodiment of the utility model;

[0015] Figure 3 This is a three-dimensional view of the battery pack placed behind the fixture according to an embodiment of the present invention;

[0016] Figure 4 This is a top view of the battery pack placed behind the clamp according to an embodiment of the present invention;

[0017] Figure 5 This is a three-dimensional view of the clamp and mounting base provided in this embodiment of the utility model;

[0018] Figure 6 This is a top view of the clamp and mounting base provided in this embodiment of the utility model;

[0019] Figure 7 This is a three-dimensional view of the fixed end provided in an embodiment of the present invention;

[0020] Figure 8 This is a top view of the fixed end provided in an embodiment of the present invention;

[0021] Figure 9 This is a three-dimensional view of the long fixing frame provided in this embodiment of the utility model;

[0022] Figure 10 This is a three-dimensional view of the short fixing frame provided in this embodiment of the utility model;

[0023] Figure 11This is a three-dimensional view of the active end provided in this embodiment of the utility model;

[0024] Figure 12 This is a top view of the active end provided in an embodiment of the present utility model;

[0025] Figure 13 This is a three-dimensional view of the long movable frame provided in this embodiment of the utility model;

[0026] Figure 14 This is a three-dimensional view of the short movable frame provided in this embodiment of the utility model;

[0027] Figure 15 This is an assembly diagram of the guide rail and drive component provided in an embodiment of the present utility model;

[0028] Figure 16 This is a schematic diagram of d1, d2 and d3 provided in the embodiment of this utility model.

[0029] In the picture:

[0030] 100. Transport trolley; 110. Support frame; 120. Fixed base; 130. Rollers;

[0031] 200. Fixture; 210. Support component; 220. Locking structure; 2211. Short fixed frame; 2201. First bracket; 2202. First limiting frame; 2203. C-shaped clamping plate; 2212. Long fixed frame; 2204. Second bracket; 2205. Second limiting frame; 2206. Clearance structure; 2221. Short movable frame; 2207. First intermediate plate; 2208. First support plate; 2209. Second support plate; 2222. Long movable frame; 2230. Second intermediate plate; 2231. Third support plate; 2232. Fourth support plate; 223. Driving component; 230. First contouring structure; 240. Fourth contouring structure; 250. Weight reduction structure; 260. Guide rail; 270. Third contouring structure;

[0032] 300. Mounting bracket;

[0033] 10. Battery pack. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] Cylindrical batteries are a type of single-cell electrochemical energy storage device with a cylindrical structure widely used in power batteries, consumer batteries, and other fields. Their core function is to store (charge) and release (discharge) electrical energy through the oxidation-reduction reaction of the internal positive and negative electrode materials. Multiple cylindrical batteries with similar capacity and internal resistance are connected in series or parallel to form a battery pack.

[0039] A cylindrical battery has a cylindrical casing with an internal cylindrical cavity for housing the battery cells. The casing can be made of aluminum, aluminum alloy, or a composite metal material.

[0040] In the assembly process of horizontal cylindrical battery boxes, the initial fitting of multiple cylindrical batteries with a serpentine conductive plate (referred to as "serpentine plate") must first be completed. This involves inserting the cylindrical batteries one by one into the pre-set cell positioning holes or slots on the serpentine plate to achieve initial fixation, forming a "cell-serpentine plate" pre-assembled unit (battery pack). Subsequently, this pre-assembled unit needs to be transported from the initial assembly station to a dedicated welding station, where welding equipment performs laser welding, resistance welding, and other processes on the contact points between the cell tabs and the serpentine plate to achieve electrical connection and structural reinforcement.

[0041] like Figures 1 to 16As shown, this embodiment provides a transport holding fixture, including a transport trolley 100 and multiple clamps 200. The multiple clamps 200 are spaced apart and detachably disposed on the transport trolley 100. Each clamp 200 includes a support member 210 for supporting a battery pack 10 and a locking structure 220 for fixing the battery pack 10. The battery pack 10 includes multiple cylindrical batteries. The locking structure 220 includes a fixed end and a movable end spaced apart around the battery pack 10. The locking structure 220 has a locked state and an open state. When the locking structure 220 is in the locked state, the movable end and the fixed end are close to each other and can abut against the battery pack 10. When the locking structure 220 is in the open state, the movable end and the fixed end are far apart.

[0042] The transport holding fixture provided in this embodiment allows the battery pack 10 to be placed on the support 210, with the locking structure 220 in a locked state. The movable end and the fixed end are close to each other and can both abut against the battery pack 10, preventing shaking during transport and ensuring a stable and reliable transport process. After the battery pack 10 is removed, the locking structure 220 is in an open state, preparing for subsequent transport of the battery pack 10. The clamp 200 can be detachably installed on the transport trolley 100, facilitating disassembly and assembly, and also facilitating the use of the transport trolley 100 for transporting other components, thus improving the flexibility of use.

[0043] According to one embodiment of the present invention, the fixed end includes a short fixed frame 2211 and a long fixed frame 2212 fixedly installed on the transport trolley 100 and arranged perpendicularly to each other, and the movable end includes a short movable frame 2221 and a long movable frame 2222. The short movable frame 2221 is arranged opposite to the short fixed frame 2211, and the long movable frame 2222 is arranged opposite to the long fixed frame 2212. A first elastic structure is provided between the short movable frame 2221 and the battery pack 10, and a second elastic structure is provided between the long movable frame 2222 and the battery pack 10. When the locking structure 220 is in the locked state, both the first elastic structure and the second elastic structure are compressed. The first elastic structure causes the short movable frame 2221 to tend to move closer to the short fixed frame 2211, and the second elastic structure causes the long movable frame 2222 to tend to move closer to the long fixed frame 2212. Using grippers, the battery pack 10 is removed from the initial assembly station and transferred to the installation position of the transport holding fixture. During the installation of the battery pack 10, the first and second elastic structures are compressed under the pushing force of the grippers, i.e., the locking structure 220 is in the open state. Subsequently, the battery pack 10 is placed on the support 210 and pushed and pressed against the fixed end by the first and second elastic structures. At this time, the locking structure 220 is in the locked state. Under the squeezing action of the first and second elastic structures, the battery pack 10 is prevented from shaking during transportation, ensuring reliable transportation. The structure is simple and the manufacturing cost is low.

[0044] Preferably, a first contouring structure 230 is provided on the side of the short fixing bracket 2211 that contacts the battery pack 10, and a second contouring structure is provided on the side of the long fixing bracket 2212 that contacts the battery pack 10. By providing the first contouring structure 230 and the second contouring structure, the contact area between the battery pack 10 and the short fixing bracket 2211, and between the battery pack 10 and the long fixing bracket 2212, is increased, so as to stably fix the battery pack 10. During transportation, the force of external vibration or impact can be evenly distributed to the surface of the battery pack 10 through the contouring structure, avoiding deformation or breakage of the battery pack 10 caused by local stress concentration.

[0045] According to one embodiment of this utility model, the first contouring structure 230 is wavy, and the second contouring structure is arc-shaped. The wavy first contouring structure 230 corresponds to the length direction of the battery pack 10, and the battery cells of the battery pack 10 are precisely matched with the first contouring structure 230 at a "point-to-point" connection, ensuring a stable fit between the battery pack 10 and the short fixing bracket 2211. The arc-shaped second contouring structure corresponds to the width direction of the battery pack 10, and the number of second contouring structures can correspond to the number of battery rows. The first contouring structure 230 and the second contouring structure respectively achieve positioning in the length and width directions of the battery pack 10, improving positioning stability and accuracy.

[0046] In this embodiment, the short fixing frame 2211 includes a first support 2201 and a first limiting frame 2202 that are perpendicular to each other. The first support 2201 is detachably connected to the transport trolley 100, and the first limiting frame 2202 is perpendicularly connected to the end of the first support 2201 away from the transport trolley 100. A first contouring structure 230 is provided on the side of the first limiting frame 2202 away from the first support 2201. This arrangement simplifies the structure of the short fixing frame 2211 and reduces manufacturing costs. Figure 4 , Figure 8 and Figure 10 As shown, taking a battery pack 10 comprising two rows of parallel cylindrical batteries, with each row of cylindrical batteries comprising multiple cylindrical batteries as an example, there are two first limiting frames 2202, which are spaced apart. Each first limiting frame 2202 is provided with a first contouring structure 230, and the position of the first contouring structure 230 can be adaptively adjusted according to the position of the cylindrical batteries at the end of each row of cylindrical batteries.

[0047] Preferably, the short fixing bracket 2211 also includes a C-shaped clamping plate 2203 detachably connected to the first bracket 2201, with one end of the support member 210 inserted into the slot of the C-shaped clamping plate 2203. The C-shaped clamping plate 2203 can prevent the support member 210 from shifting position under external impact or when the installation is loose, thus improving the stability of the assembly.

[0048] Preferably, the long fixed frame 2212 is provided with a clearance structure 2206. When the battery pack 10 is transferred using the grippers, the clearance structure 2206 facilitates the grippers to enter between the long movable frame 2222 and the long fixed frame 2212, making it easier to place the battery pack 10.

[0049] like Figures 7-9 As shown, optionally, the long fixing frame 2212 includes a second support 2204 and a second limiting frame 2205 that are perpendicular to each other. The second support 2204 is detachably connected to the transport trolley 100, and the second limiting frame 2205 is perpendicularly connected to the end of the second support 2204 away from the transport trolley 100. A second contouring structure is provided on the side of the second limiting frame 2205 away from the second support 2204. This configuration simplifies the structure of the long fixing frame 2212 and reduces manufacturing costs. For example, the clearance structure 2206 is configured as an elongated hole penetrating the end face of the second limiting frame 2205 away from the second support 2204, which has a simple shape and is easy to process.

[0050] In one possible implementation, both the long movable frame 2222 and the short movable frame 2221 are slidably connected to the transport trolley 100, and the long movable frame 2222 and the short movable frame 2221 are connected by a linkage structure. The locking structure 220 also includes a drive member 223. The long movable frame 2222 is connected to the output end of the drive member 223. The drive member 223 is configured to drive the long movable frame 2222 to move toward or away from the long fixed frame 2212. When the long movable frame 2222 moves toward or away from the long fixed frame 2212, the short movable frame 2221 moves synchronously toward or away from the short fixed frame 2211. By setting up a driving component 223, the driving component 223 drives the long movable frame 2222 to move towards or away from the long fixed frame 2212. Simultaneously, under the action of the linkage structure, the short movable frame 2221 moves towards or away from the short fixed frame 2211. This allows for adaptive adjustment of the distance between the long movable frame 2222 and the long fixed frame 2212, and between the short movable frame 2221 and the short fixed frame 2211, according to the size of the battery pack 10. This increases the flexibility of the transport holding fixture and expands its application range. When the driving component 223 drives the long movable frame 2222 to move towards or away from the long fixed frame 2212, the short movable frame 2221 moves towards or away from the short fixed frame 2211 simultaneously, improving the fixture adjustment efficiency. Exemplarily, the long movable frame 2222 is slidably connected to the transport trolley 100 via a guide rail 260. Exemplarily, the linkage structure can be a cam-linkage structure.

[0051] According to one embodiment of this utility model, the driving component 223 is a cylinder or a motor. A cylinder converts the pressure energy of compressed air into mechanical linear motion and is the core actuator of a pneumatic system, possessing advantages of low cost and high reliability. A linear motor converts electrical energy into mechanical linear motion through electromagnetic induction and is the core power source of electrification and automation systems, possessing advantages of high energy efficiency and flexible output forms.

[0052] In this embodiment, a third contouring structure 270 is provided on the side of the first elastic structure closest to the battery pack 10; a fourth contouring structure 240 is provided on the side of the second elastic structure closest to the battery pack 10. By providing the third contouring structure 270 and the fourth contouring structure 240, the contact area between the battery pack 10 and the short movable frame 2221, and between the battery pack 10 and the long movable frame 2222, is increased to stably fix the battery pack 10. During transportation, the force of external vibration or impact can be evenly distributed to the surface of the battery pack 10 through the contouring structure, avoiding deformation or breakage of the battery pack 10 caused by local stress concentration.

[0053] According to one embodiment of this utility model, the third contouring structure 270 is arc-shaped; the fourth contouring structure 240 is wave-shaped. The arc-shaped second contouring structure corresponds to the width direction of the battery pack 10, and the number of the second contouring structures can correspond to the number of battery rows; the wave-shaped fourth contouring structure 240 corresponds to the length direction of the battery pack 10, and the battery cells of the battery pack 10 are precisely matched with the first contouring structure 230 in a "point-to-point" manner, so that the battery pack 10 and the short fixing bracket 2211 are stably attached; the fourth contouring structure 240 and the third contouring structure 270 respectively realize the positioning of the battery pack 10 in the length and width directions, improving the positioning stability and accuracy.

[0054] According to one embodiment of this utility model, the first elastic structure includes a plurality of first springs arranged side by side, one end of the first spring being connected to the short movable frame 2221, and the other end of the first spring being connected to the third contouring structure 270; the second elastic structure includes a plurality of second springs arranged side by side, one end of the second spring being connected to the long movable frame 2222, and the other end of the second spring being connected to the fourth contouring structure 240. The springs store mechanical energy (elastic potential energy) through elastic deformation. With a small volume and weight, the springs can store a large amount of elastic potential energy with extremely low energy loss; the springs can absorb impact force through deformation, converting instantaneous violent impacts into slow elastic deformation, thus playing a buffering and protective role.

[0055] According to one embodiment of the present invention, the short movable frame 2221 has a Z-shaped structure. The short movable frame 2221 includes a first intermediate plate 2207, a first support plate 2208 perpendicularly connected to one end of the first intermediate plate 2207, and a second support plate 2209 perpendicularly connected to the other end of the first intermediate plate 2207. The first support plate 2208 is connected to the transport trolley 100, and the end of the second support plate 2209 away from the first intermediate plate 2207 is provided with a first elastic structure. By providing the first support plate 2208, the contact area between the short movable frame 2221 and the transport trolley 100 can be increased, thereby improving the connection reliability. The short movable frame 2221 is designed with a Z-shaped structure, which is simple in structure and easy to process and manufacture.

[0056] According to one embodiment of this utility model, the long movable frame 2222 has a Z-shaped structure. The long movable frame 2222 includes a second intermediate plate 2230, a third support plate 2231 vertically connected to one end of the second intermediate plate 2230, and a fourth support plate 2232 vertically connected to the other end of the second intermediate plate 2230. The third support plate 2231 is connected to the transport trolley 100, and a second elastic structure is provided at the end of the fourth support plate 2232 away from the second intermediate plate 2230. By providing the third support plate 2231, the contact area between the long movable frame 2222 and the transport trolley 100 can be increased, thereby improving the connection reliability. The long movable frame 2222 has a Z-shaped structure, which is simple in structure and easy to process and manufacture.

[0057] According to one embodiment of the present invention, a weight-reducing structure 250 is provided at the connection between the second intermediate plate 2230 and the fourth support plate 2232 to simplify the overall weight and reduce material costs. Exemplarily, the weight-reducing structure 250 is configured as a strip-shaped hole.

[0058] According to one embodiment of this utility model, the distance between the first limiting frame 2202 and the transport trolley 100 is d1mm, the height of the second bracket 2204 is d2mm, and the height of the fourth support plate 2232 is d3mm, where d1≥d2 and d2>d3. If d1>d2 and d2>d3, when the battery pack 10 is installed into the locking structure 220, the gripper can first clamp the battery pack 10, so that one end of the battery pack 10 abuts and is positioned on the first limiting frame 2202. Then, the battery pack 10 is installed into the locking structure 220 with this positioning point as the fulcrum. The first limiting frame 2202 can play a positioning and guiding role, improving the assembly efficiency of the battery pack 10. If d1=d2 and d2>d3, then the first limiting frame 2202 and the second bracket 2204 can simultaneously position both sides of the battery pack 10, improving the assembly efficiency of the battery pack 10.

[0059] According to one embodiment of this utility model, d1mm ranges from 200mm to 300mm; and / or, d2mm ranges from 160mm to 240mm; and / or, d3mm ranges from 100mm to 200mm. This arrangement avoids significant deviations in the contact positions of the first limiting frame 2202 and the battery pack 10, the second support 2204 and the battery pack 10, and the fourth support plate 2232 and the battery pack 10. Otherwise, the battery pack 10 may experience force imbalance, making it prone to shaking during transportation. For example, d1mm can be any value among 200mm, 220mm, 230mm, 250mm, 260mm, 280mm, 290mm, 300mm, or 200mm-300mm; d2mm can be any value among 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, 230mm, 240mm, or 160mm-240mm; d3mm can be any value among 100mm, 120mm, 130mm, 140mm, 160mm, 170mm, 190mm, 200mm, or 100mm-200mm.

[0060] According to one embodiment of the present invention, when the battery pack 10 is installed into the locking structure 220, the gripper holds the battery pack 10 so that one end of the battery pack 10 abuts against and is positioned against the second bracket 2204. Then, the battery pack 10 is installed between the long fixed bracket 2212 and the long movable bracket 2222 along the second bracket 2204. The second bracket 2204 plays a positioning and guiding role, improving the assembly efficiency of the battery pack 10.

[0061] In this embodiment, the transport trolley 100 includes a support frame 110, a fixed seat 120, and rollers 130. The fixed seat 120 is mounted on the top of the support frame 110 and is used to mount the clamp 200. The rollers 130 are rotatably mounted on the bottom of the support frame 110. By pushing the transport trolley 100, the rollers 130 roll along the ground, thus transporting the battery pack 10. The transport trolley 100 has a simple structure and low manufacturing cost.

[0062] According to one embodiment of the present invention, the transport holding fixture further includes a mounting base 300, and the clamp 200 is detachably mounted to the fixed base 120 via the mounting base 300. This arrangement improves the overall assembly efficiency of the clamp 200.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A transport holding tool, characterized in that, include: Transport trolley (100); Multiple clamps (200) are spaced apart and detachably mounted on the transport trolley (100). Each clamp (200) includes a support member (210) for supporting a battery pack (10) and a locking structure (220) for fixing the battery pack (10). The battery pack (10) includes multiple cylindrical batteries. The locking structure (220) includes a fixed end and a movable end spaced apart around the periphery of the battery pack (10). The locking structure (220) has a locked state and an open state. When the locking structure (220) is in the locked state, the movable end and the fixed end are close to each other and can abut against the battery pack (10). When the locking structure (220) is in the open state, the movable end and the fixed end are far apart from each other.

2. The transport holding fixture according to claim 1, characterized in that, The fixed end includes a short fixed frame (2211) and a long fixed frame (2212) fixedly installed on the transport trolley (100) and arranged perpendicularly to each other. The movable end includes a short movable frame (2221) and a long movable frame (2222). The short movable frame (2221) is arranged opposite to the short fixed frame (2211), and the long movable frame (2222) is arranged opposite to the long fixed frame (2212). A first elastic structure is provided between the short movable frame (2221) and the battery pack (10), and a second elastic structure is provided between the long movable frame (2222) and the battery pack (10). When the locking structure (220) is in the locking state, the first elastic structure and the second elastic structure are compressed.

3. The transport holding fixture according to claim 2, characterized in that, The short fixing bracket (2211) has a first contouring structure (230) on the side that contacts the battery pack (10), and the long fixing bracket (2212) has a second contouring structure on the side that contacts the battery pack (10).

4. The transport holding fixture according to claim 3, characterized in that, The first contouring structure (230) is set to a wave shape; the second contouring structure is set to an arc shape.

5. The transport holding fixture according to claim 3, characterized in that, The short fixed frame (2211) includes a first support (2201) and a first limiting frame (2202) that are perpendicular to each other. The first support (2201) is detachably connected to the transport trolley (100). The first limiting frame (2202) is perpendicularly connected to the end of the first support (2201) away from the transport trolley (100), and the first contouring structure (230) is provided on the side of the first limiting frame (2202) away from the first support (2201).

6. The transport holding fixture according to claim 5, characterized in that, The short fixing frame (2211) also includes a C-shaped card plate (2203) that is detachably connected to the first bracket (2201), and one end of the support member (210) is inserted into the card slot of the C-shaped card plate (2203).

7. The transport holding fixture according to claim 5, characterized in that, The long fixed frame (2212) includes a second support (2204) and a second limiting frame (2205) that are perpendicular to each other. The second support (2204) is detachably connected to the transport trolley (100). The second limiting frame (2205) is perpendicularly connected to the end of the second support (2204) away from the transport trolley (100), and the second contouring structure is provided on the side of the second limiting frame (2205) away from the second support (2204).

8. The transport holding fixture according to claim 2, characterized in that, The long movable frame (2222) and the short movable frame (2221) are slidably connected to the transport trolley (100), and the long movable frame (2222) and the short movable frame (2221) are connected by a linkage structure. The locking structure (220) also includes a driving member (223). The long movable frame (2222) is connected to the output end of the driving member (223). The driving member (223) is configured to drive the long movable frame (2222) to move toward or away from the long fixed frame (2212). When the long movable frame (2222) moves toward or away from the long fixed frame (2212), the short movable frame (2221) moves synchronously toward or away from the short fixed frame (2211).

9. The transport holding fixture according to claim 2, characterized in that, A third contouring structure (270) is provided on the side of the first elastic structure near the battery pack (10); a fourth contouring structure (240) is provided on the side of the second elastic structure near the battery pack (10).

10. The transport holding fixture according to claim 9, characterized in that, The third contouring structure (270) is set to an arc shape; the fourth contouring structure (240) is set to a wave shape.

11. The transport holding fixture according to claim 9, characterized in that, The first elastic structure includes a plurality of first springs arranged side by side, one end of the first spring is connected to the short movable frame (2221), and the other end of the first spring is connected to the third contour structure (270); The second elastic structure includes a plurality of second springs arranged side by side, one end of the second spring being connected to the long movable frame (2222), and the other end of the second spring being connected to the fourth contour structure (240).

12. The transport holding fixture according to claim 1, characterized in that, The transport holding fixture also includes a mounting base (300), and the clamp (200) is detachably mounted to the transport trolley (100) via the mounting base (300).

13. The transport holding fixture according to claim 2, characterized in that, The short movable frame (2221) has a Z-shaped structure. The short movable frame (2221) includes a first intermediate plate (2207), a first support plate (2208) vertically connected to one end of the first intermediate plate (2207), and a second support plate (2209) vertically connected to the other end of the first intermediate plate (2207). The first support plate (2208) is connected to the transport trolley (100), and the first elastic structure is provided at the end of the second support plate (2209) away from the first intermediate plate (2207).

14. The transport holding fixture according to claim 2, characterized in that, The long movable frame (2222) has a Z-shaped structure. The long movable frame (2222) includes a second intermediate plate (2230), a third support plate (2231) vertically connected to one end of the second intermediate plate (2230), and a fourth support plate (2232) vertically connected to the other end of the second intermediate plate (2230). The third support plate (2231) is connected to the transport trolley (100), and the second elastic structure is provided at the end of the fourth support plate (2232) away from the second intermediate plate (2230).

15. The transport holding fixture according to claim 2, characterized in that, The long fixed frame (2212) is provided with an avoidance structure (2206).

16. The transport holding fixture according to claim 14, characterized in that, The short fixed frame (2211) includes a first limiting frame (2202), the long fixed frame (2212) includes a second support (2204), the distance between the first limiting frame (2202) and the transport trolley (100) is d1mm, the height of the second support (2204) is d2mm, the height of the fourth support plate (2232) is d3mm, d1≥d2, d2>d3.

17. The transport holding fixture according to claim 16, characterized in that, The range of d1mm is 200mm-300mm; and / or, the range of d2mm is 160mm-240mm; and / or, the range of d3mm is 100mm-200mm.

18. The transport holding fixture according to claim 1, characterized in that, The transport trolley (100) includes a support frame (110), a fixed seat (120), and rollers (130). The fixed seat (120) is installed on the top of the support frame (110) and is used to install the clamp (200). The rollers (130) are rotatably installed on the bottom of the support frame (110).

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