A kind of light storage and charging integrated system energy testing device

Abstract

The application provides a kind of light storage and charging integrated system energy test device, relating to energy test field.The combined transfer trolley is internally provided with four test simulators, the combined transfer trolley rear end is provided with a forced heat dissipation mechanism, the right end rear side of the combined transfer trolley is provided with a wire harness support mechanism, the inside of the combined transfer trolley is provided with a bearing plate below the test simulator, and the top of the bearing plate is provided with a limiting mechanism on both sides.The device provides a buffer for the test simulator through the elastic sheet A at the bottom of the support bracket, and cooperates with the baffle at the rear end of the support bracket to prevent the test simulator from sliding out too much, the shock-absorbing frame at both ends of the top of the test simulator cooperates with the elastic sheet B to form a bidirectional shock-absorbing structure, to offset the vibration impact during transfer or test, to protect the precise power module inside the test simulator from being damaged, to prolong the service life of the equipment, and to avoid test data fluctuations caused by vibration, with the characteristics of improving energy test accuracy.

Description

Technical Field

[0001] This invention relates to the field of energy testing, specifically to an energy testing device for an integrated photovoltaic, energy storage, and charging system. Background Technology

[0002] Microgrids are small-scale power generation and distribution systems composed of distributed power sources, energy storage devices, energy conversion devices, related loads, and monitoring and protection devices. They can achieve self-control, protection, and autonomous management, thereby ensuring uninterrupted power supply to important users and improving power supply reliability. Photovoltaic-storage-charging integrated systems can combine photovoltaic power generation, energy storage, and charging, and are one of the main development trends of new energy technologies in recent years.

[0003] Existing energy testing equipment is mostly built in a separate and fragmented manner: photovoltaic simulators, battery simulators, power analyzers, and load cabinets are set up independently, which is complicated by wiring, takes up a lot of space, and the wiring is prone to interference. At the same time, the chassis structure has poor versatility, the wiring terminals are arranged in a mess, and the lack of a modular frame leads to unreasonable design of the shockproof, dustproof, and heat dissipation structure of the testing equipment. Disassembly, assembly, and wiring are also time-consuming and laborious. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an energy testing device for an integrated photovoltaic, energy storage, and charging system, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy testing device for an integrated photovoltaic, energy storage, and charging system, comprising a combined transport vehicle, four test simulators inside the combined transport vehicle, a forced heat dissipation mechanism at the rear end of the combined transport vehicle, a wire harness support mechanism at the right rear end of the combined transport vehicle, a support plate inside the combined transport vehicle located below the test simulators, limit mechanisms on the top left and right sides of the support plate, shock absorption mechanisms on the bottom left and right sides of the support plate, a heat dissipation channel at the bottom of the combined transport vehicle, and a wire harness support mechanism including a wire harness storage box. The right side wall of the combined transport vehicle is connected to the left side wall of the wire harness storage box via a guide rail, and a wire harness sorting rack is rotatably connected to the bottom of the wire harness storage box.

[0006] Preferably, the limiting mechanism includes a support bracket, the bottom front and rear sides of the support bracket are slidably connected to the bearing plate, and an elastic piece A is fixedly connected between the bottom wall of the support bracket and the top wall of the bearing plate.

[0007] Preferably, a baffle is provided at the top of the rear end of the support bracket, a guide groove is provided on the top wall of the support bracket, and a guide wheel that meshes with the guide groove is provided at the bottom of the test simulator.

[0008] Preferably, the shock absorption mechanism includes a shock absorption frame, which is arranged in an "L" shape and is located at both ends of the top of the test simulator. The inner wall of the shock absorption frame is slidably connected to the side wall of the test simulator, and an elastic sheet B is fixedly connected between the top wall of the shock absorption frame and the bottom wall of the bearing plate.

[0009] Preferably, the combined transport vehicle has a wire harness insertion compartment on the right side near the test simulator, a wire harness connection module is provided on the right side wall of the test simulator at the location of the wire harness insertion compartment, and disassembly handles are fixedly connected to both the left and right sides of the front end of the test simulator. A groove is provided on the side wall of the test simulator at the location of the disassembly handle, an air duct is provided on the bottom wall of the test simulator, and storage cavities are provided on the top wall of the combined transport vehicle and the top wall of the support plate at the location of the wire harness insertion compartment.

[0010] Preferably, a cover plate is slidably connected inside the storage cavity, and guide rods are fixedly connected to both the front and rear ends of the cover plate. The guide rods are semi-cylindrical in shape, and a limiting groove is opened on the side wall of the storage cavity to form a slidable connection with the guide rods. Magnetic blocks are embedded in the inner wall of the cover plate and the side wall of the wire harness insertion compartment.

[0011] Preferably, a slot is provided on the side wall of the guide rail located at the rear of the wire harness storage box, a locking rod is slidably connected inside the wire harness storage box near the slot, a return spring is sleeved on the outer surface of the locking rod, an elastic groove that engages with the return spring is provided inside the wire harness storage box, and a pull ring is fixedly connected to the rear end of the locking rod outside the wire harness storage box.

[0012] Preferably, the inner wall of the wire harness storage box is fixedly connected with several wire harness collection bags, a support block is fixedly connected to the center of the left side wall of the wire harness sorting rack, and several wire clamping plates are arrayed on the top wall of the wire harness sorting rack, with arc-shaped notches on the side walls of the wire clamping plates.

[0013] Preferably, the wire harness sorting rack and the wire harness storage box are engaged, and both the rear side wall of the wire harness sorting rack and the rear side wall of the wire harness storage box are provided with fixing rings. The front and rear ends of the combined transfer vehicle are provided with opening and closing doors. The forced heat dissipation mechanism is composed of heat dissipation fans, which are fixed on the opening and closing doors. The rear end of the bearing plate is provided with a notch at the position of the heat dissipation fan.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The energy testing device for this integrated photovoltaic-storage-charging system uses elastic plates A at the bottom of the support bracket to buffer the test simulator. At the same time, the baffle at the rear end of the support bracket prevents the test simulator from sliding out excessively. The shock-absorbing frames at both ends of the top of the test simulator cooperate with the elastic plates B to form a bidirectional shock-absorbing structure, which offsets the vibration and impact during transportation or testing, protects the delicate power modules inside the test simulator from damage, extends the service life of the equipment, and avoids test data fluctuations caused by vibration, thus improving the accuracy of energy testing.

[0015] 2. The energy testing device for this integrated photovoltaic, energy storage and charging system, through the design of the wire harness plug-in compartment and the sliding cover, not only ensures the convenience of test wiring, but also avoids external contamination of the plug-in ports when idle. The combination of the wire harness storage box and the wire harness classification rack realizes the centralized storage of test wire harnesses, solving the problems of messy wire harnesses and easy plugging and unplugging errors in traditional testing, and improving the cleanliness and efficiency of on-site operations.

[0016] 3. The energy testing device for this integrated photovoltaic-storage-charging system integrates equipment carrying, wiring harness storage, and heat dissipation functions. Its overall structure is compact and equipped with wheels, allowing for flexible transport to different testing scenarios without the need for additional fixed testing platforms. This significantly improves the device's adaptability and mobile operation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cooling fan structure of the present invention; Figure 3 This is a schematic diagram of the wire harness connector structure of the present invention; Figure 4 This is a schematic diagram of the guide rail structure of the present invention; Figure 5 This is a schematic diagram of the support bracket structure of the present invention; Figure 6 This is a schematic diagram of the storage cavity structure of the present invention; Figure 7 This is a schematic diagram of the wire harness storage box structure of the present invention; Figure 8 This is a schematic diagram of the wire clip structure of the present invention; Figure 9 This is a schematic diagram of the air duct structure of the present invention.

[0018] In the diagram: 1. Combined transfer vehicle; 2. Test simulator; 3. Bearing plate; 4. Heat dissipation channel; 5. Wire harness storage box; 6. Guide rail; 7. Wire harness sorting rack; 8. Support bracket; 9. Elastic plate A; 10. Guide groove; 11. Guide wheel; 12. Shock absorber frame; 13. Elastic plate B; 14. Wire harness connector compartment; 15. Wire harness connection module; 16. Disassembly handle; 17. Air duct; 18. Storage cavity; 19. Cover plate; 20. Guide rod; 21. Limiting groove; 22. Magnetic block; 23. Card slot; 24. Card rod; 25. Return spring; 26. Pull ring; 27. Wire harness collection bag; 28. Support block; 29. ​​Wire clamping plate; 30. Opening and closing door; 31. Cooling fan. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0021] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0023] like Figures 1-9As shown, an energy testing device for an integrated photovoltaic, energy storage, and charging system includes a combined transport vehicle 1. The combined transport vehicle 1 houses four test simulators 2 arranged side-by-side, enabling simultaneous completion of multiple tests and improving overall testing efficiency. A forced cooling mechanism is located at the rear of the combined transport vehicle 1 to centrally dissipate heat from the test simulators 2 during operation, preventing high temperatures from affecting testing accuracy. A wire harness support mechanism is located on the right rear side of the combined transport vehicle 1. A support plate 3 is located inside the combined transport vehicle 1 below the test simulators 2. Limiting mechanisms are located on the top left and right sides of the support plate 3 to limit the position and guide the sliding of the test simulators 2. Shock-absorbing mechanisms are located on the bottom left and right sides of the support plate 3 to achieve vertical buffering and shock absorption, reducing the adverse effects of transport swaying and testing vibration. A heat dissipation channel 4 is located at the bottom of the combined transport vehicle 1, which, in conjunction with the forced cooling mechanism, enhances the overall heat dissipation capacity. The wire harness support mechanism includes a wire harness storage box 5. The right side wall of the combined transport vehicle 1 is connected to the left side wall of the wire harness storage box 5 via a guide rail 6. A wire harness sorting rack 7 is rotatably connected to the bottom of the wire harness storage box 5.

[0024] In an optional embodiment, the limiting mechanism includes a support bracket 8, the bottom front and rear sides of the support bracket 8 are slidably connected to the bearing plate 3, and an elastic piece A9 is fixedly connected between the bottom wall of the support bracket 8 and the top wall of the bearing plate 3.

[0025] In this embodiment, the support bracket 8 can slide up and down on the top of the bearing plate 3, making it convenient for staff to push and pull the test simulator 2 for loading and unloading. The elastic sheet A9 is made of highly elastic metal sheet material, which has good buffering performance. It can provide bottom buffering support for the test simulator 2 placed on the support bracket 8, reduce the vibration generated during transportation, and at the same time use the elastic rebound to limit the equipment offset and improve the placement stability.

[0026] In an optional embodiment, a baffle is provided at the top of the rear end of the support bracket 8, a guide groove 10 is provided on the top wall of the support bracket 8, and a guide wheel 11 that meshes with the guide groove 10 is provided at the bottom of the test simulator 2.

[0027] In this embodiment, the baffle can limit the rear end of the test simulator 2 to prevent the test simulator 2 from slipping or shifting during testing or transportation. The guide wheel 11 can roll directionally along the guide groove 10 to reduce the frictional resistance when the test simulator 2 is pushed, pulled and unloaded, so as to achieve quick alignment and accurate insertion, and simplify the equipment disassembly and assembly process.

[0028] In an optional embodiment, the shock absorption mechanism includes a shock absorption frame 12, which is arranged in an "L" shape and is located at both ends of the top of the test simulator 2. The inner wall of the shock absorption frame 12 is slidably connected to the side wall of the test simulator 2, and an elastic sheet B13 is fixedly connected between the top wall of the shock absorption frame 12 and the bottom wall of the bearing plate 3.

[0029] In this embodiment, the elastic sheet B13 and elastic sheet A9 are configured together to form a bidirectional buffer and shock absorption structure. During transport and equipment operation vibration, the upper and lower sets of elastic sheets work together to absorb energy and buffer, greatly reducing the vibration transmission amplitude. This prevents the precision electronic components inside the test simulator 2 from becoming loose or damaged due to vibration, while also preventing vibration from interfering with the acquisition of electrical signals and ensuring the stability of energy test data.

[0030] In an optional embodiment, a wire harness insertion compartment 14 is provided on the right side of the combined transport vehicle 1 near the test simulator 2. A wire harness connection module 15 is provided on the right side wall of the test simulator 2 at the location of the wire harness insertion compartment 14. Disassembly handles 16 are fixedly connected to both the left and right sides of the front end of the test simulator 2. A groove is provided on the side wall of the test simulator 2 at the location of the disassembly handles 16. An air duct 17 is provided on the bottom wall of the test simulator 2. A storage cavity 18 is provided on the inner top wall of the combined transport vehicle 1 and the top wall of the support plate 3 at the location of the wire harness insertion compartment 14.

[0031] In this embodiment, the wiring harness connection module 15 includes various plug-in ports to adapt to the various test wiring requirements of the optical storage and charging system. The groove makes it easier for operators to hold the disassembly handle 16, further improving the grip comfort. The air duct 17 is a strip-shaped ventilation slot, which increases the heat dissipation effect of the test simulator 2.

[0032] In an optional embodiment, a cover plate 19 is slidably connected inside the storage cavity 18. Guide rods 20 are fixedly connected to both the front and rear ends of the cover plate 19. The guide rods 20 are semi-cylindrical in shape. A limiting groove 21 is provided on the side wall of the storage cavity 18, which is slidably connected to the guide rods 20. Magnetic blocks 22 are embedded in both the inner wall of the cover plate 19 and the side wall of the wire harness insertion compartment 14.

[0033] In this embodiment, the storage cavity 18 provides a sliding storage space for the cover plate 19, realizing the opening and closing protection of the wire harness plug compartment 14, blocking dust, moisture, and debris from entering the plug port, and preventing the port from being contaminated by the outside. The shape of the guide rod 20 prevents the cover plate 19 from rotating during the sliding process, while ensuring that the cover plate 19 moves smoothly without deviation. The magnetic block 22 makes the cover plate 19 more airtight after closing and improves the convenience of opening and closing.

[0034] In an optional embodiment, a slot 23 is provided on the side wall of the guide rail 6 located at the rear side of the wire harness storage box 5. A locking rod 24 is slidably connected inside the wire harness storage box 5 near the slot 23. A return spring 25 is sleeved on the outer surface of the locking rod 24. An elastic groove that engages with the return spring 25 is provided inside the wire harness storage box 5. A pull ring 26 is fixedly connected to the rear end of the locking rod 24 outside the wire harness storage box 5.

[0035] In this embodiment, the slot 23, in conjunction with the reset spring 25, allows the wire harness storage box 5 to be flexibly positioned and slid. The elastic groove provides room for the reset spring 25 to compress and rebound. By pulling the pull ring 26, the operator can drive the locking rod 24 to retract, releasing the slot 23 from its limit. After releasing the pull ring 26, the reset spring 25 drives the locking rod 24 to engage with the slot 23, thereby locking the position of the wire harness storage box 5 and preventing the wire harness storage box 5 from accidentally sliding during operation.

[0036] In an optional embodiment, a plurality of wire harness collection bags 27 are fixedly connected to the inner wall of the wire harness storage box 5, a support block 28 is fixedly connected to the center of the left side wall of the wire harness sorting rack 7, and a plurality of wire clamping plates 29 are arrayed on the top wall of the wire harness sorting rack 7, with arc-shaped notches on the side walls of the wire clamping plates 29.

[0037] In this embodiment, the wire harness collection bag 27 is used to classify and store test wire harnesses of different specifications and uses to avoid wire harness loss or tangling. The support block 28 is set to prevent the side wall of the wire harness classification rack 7 from colliding with the outer wall of the guide rail 6 and to limit the rotation of the wire harness classification rack 7. The arc notch of the wire clamping plate 29 fits the outer diameter of the wire harness and can clamp and fix the test wire harness, so as to realize the orderly arrangement of the wire harness and prevent the wire harness from tangling, knotting, or misconnecting during the wiring process.

[0038] In an optional embodiment, the wire harness sorting rack 7 and the wire harness storage box 5 are engaged. When storing, the wire harness sorting rack 7 can be flipped to fit the wire harness storage box 5 to complete the storage, occupying little space. When unfolded, it is convenient for staff to quickly run and connect wires. The rear side wall of the wire harness sorting rack 7 and the rear side wall of the wire harness storage box 5 are provided with fixing rings. The front and rear ends of the combined transfer vehicle 1 are provided with opening and closing doors 30. The forced heat dissipation mechanism is composed of a heat dissipation fan 31, which is fixed on the opening and closing door 30. The rear end of the bearing plate 3 is provided with a notch at the position of the heat dissipation fan 31.

[0039] In this embodiment, the setting of the fixing ring facilitates the locking of the wire harness sorting rack 7 and the wire harness storage box 5 after they are stored, and the opening of the notch in the bearing plate 3, together with the heat dissipation fan 31, quickly removes the heat generated by the test simulator 2, so as to achieve continuous cooling and heat dissipation.

[0040] In use, push the combined transport cart 1 next to the equipment to be tested, first rotate the cover plate 19 to a horizontal position and then push it into the storage cavity 18, take out the wire harness from the wire harness collection bag 27, connect one end of the wire harness to the wire harness connection module 15 in sequence, and connect the other end to the test equipment. During the test, the wire harness is sequentially locked between the wire clamping plates 29. When a test simulator 2 has completed the test, separate the wire harness from the wire harness connection module 15, pull the pull ring 26 to drive the clamping rod 24 to move away from the limit of the clamping slot 23, slide the wire harness storage box 5 to realize the position adjustment of the wire harness classification rack 7, so that the wire harness docking is convenient.

[0041] During the device transfer process, the elastic plate A9 at the bottom of the support bracket 8 provides cushioning for the test simulator 2. At the same time, it works with the baffle at the rear end of the support bracket 8 to prevent the test simulator 2 from sliding out excessively. The shock-absorbing frame 12 at both ends of the top of the test simulator 2 works with the elastic plate B13 to form a bidirectional shock-absorbing structure to offset the vibration and impact during the transfer or testing process.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0043] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A light storage and charging integrated system energy test device, comprising a combined transfer trolley (1), four test simulators (2) are arranged inside the combined transfer trolley (1), a forced heat dissipation mechanism is arranged at the rear end of the combined transfer trolley (1), and a wire harness support mechanism is arranged at the rear side of the right end of the combined transfer trolley (1), characterized in that: The combined transport vehicle (1) has a support plate (3) located below the test simulator (2) inside. The support plate (3) has a limit mechanism on the top left and right sides, and a shock absorption mechanism on the bottom left and right sides. The combined transport vehicle (1) has a heat dissipation channel (4) at the bottom. ​ The wire harness support mechanism includes a wire harness storage box (5). The right side wall of the combined transfer vehicle (1) is connected to the left side wall of the wire harness storage box (5) via a guide rail (6). A wire harness sorting rack (7) is rotatably connected to the bottom of the wire harness storage box (5). 2.The optical storage and charging integrated system energy testing device of claim 1, wherein: The limiting mechanism includes a support bracket (8), the bottom front and rear sides of the support bracket (8) are slidably connected to the bearing plate (3), and an elastic piece A (9) is fixedly connected between the bottom wall of the support bracket (8) and the top wall of the bearing plate (3).

3. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 2, characterized in that: The support bracket (8) has a baffle at the top of its rear end, and a guide groove (10) is provided on the top wall of the support bracket (8). The test simulator (2) has a guide wheel (11) at the bottom that meshes with the guide groove (10).

4. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 3, characterized in that: The shock absorption mechanism includes a shock absorption frame (12), which is L-shaped and is set at both ends of the top of the test simulator (2). The inner wall of the shock absorption frame (12) is slidably connected to the side wall of the test simulator (2). An elastic sheet B (13) is fixedly connected between the top wall of the shock absorption frame (12) and the bottom wall of the bearing plate (3).

5. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 4, characterized in that: The combined transport vehicle (1) has a wire harness plug-in compartment (14) on the right side near the test simulator (2). The right side wall of the test simulator (2) is provided with a wire harness connection module (15) at the wire harness plug-in compartment (14). The test simulator (2) has a disassembly handle (16) fixedly connected to both the left and right sides of the front end. The side wall of the test simulator (2) is provided with a groove at the disassembly handle (16). The bottom wall of the test simulator (2) is provided with an air duct (17). The inner top wall of the combined transport vehicle (1) and the top wall of the bearing plate (3) are both provided with a storage cavity (18) at the wire harness plug-in compartment (14).

6. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 5, characterized in that: The storage cavity (18) is slidably connected to a cover plate (19). Guide rods (20) are fixedly connected to both the front and rear ends of the cover plate (19). The guide rods (20) are semi-cylindrical in shape. The side wall of the storage cavity (18) is provided with a limiting groove (21) that is slidably connected to the guide rods (20). Magnetic blocks (22) are embedded in the inner wall of the cover plate (19) and the side wall of the wire harness insertion compartment (14).

7. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 6, characterized in that: The guide rail (6) located on the rear side of the wire harness storage box (5) has a slot (23) on its side wall. A lever (24) is slidably connected inside the wire harness storage box (5) near the slot (23). A return spring (25) is sleeved on the outer surface of the lever (24). An elastic groove that engages with the return spring (25) is provided inside the wire harness storage box (5). A pull ring (26) is fixedly connected to the rear end of the lever (24) outside the wire harness storage box (5).

8. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 7, characterized in that: The inner wall of the wire harness storage box (5) is fixedly connected with several wire harness collection bags (27), the center of the left side wall of the wire harness sorting rack (7) is fixedly connected with a support block (28), the top wall of the wire harness sorting rack (7) is arrayed with several wire clamping plates (29), and the side wall of the wire clamping plate (29) has an arc-shaped notch.

9. The energy testing device for the integrated photovoltaic-storage-charging system according to claim 8, characterized in that: The wire harness sorting rack (7) is engaged with the wire harness storage box (5). The rear side wall of the wire harness sorting rack (7) and the rear side wall of the wire harness storage box (5) are both provided with fixing rings. The front and rear ends of the combined transfer vehicle (1) are both provided with opening and closing doors (30). The forced heat dissipation mechanism is composed of a heat dissipation fan (31). The heat dissipation fan (31) is fixed on the opening and closing door. The rear end of the bearing plate (3) is provided with a notch at the position of the heat dissipation fan (31).

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