Movable new energy automobile axle detection power supply cabinet

Abstract

The utility model discloses a movable new energy automobile axle detection power supply cabinet, which belongs to the technical field of electric drive axle testing and new energy automobile power battery charging and comprises a frame assembly. A power distribution unit, a TMS, a power battery assembly, an electric drive bridge power distribution module, a BMS, a display screen, a switch, a main power switch, an electronic control unit and a heat dissipation unit are installed and connected in the frame assembly, configuration and expansion can be conveniently conducted according to actual requirements, and a power battery, an efficient heat dissipation system of the power battery, the power distribution unit and a precise cooling system of the power distribution unit are integrated. According to the electric drive axle testing system, all the control modules and all necessary control modules are ingeniously integrated, the compact and coordinated layout improves the space utilization rate, the whole system shows incomparable convenience in the testing, repairing and maintaining process of an electric drive axle, scattered assemblies are reduced, connecting lines are simplified, the integrity and high efficiency of the system are ensured, and the system is suitable for popularization and application. And unprecedented smooth experience is brought to detection and maintenance work of the electric drive axle of the new energy automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drive axle testing and new energy vehicle power battery charging, and more specifically, to a movable new energy vehicle axle detection power supply cabinet. Background Art

[0002] With the rapid development of the new energy vehicle industry, axles, as one of the key components of new energy vehicles, have a direct impact on the safety, efficiency, and comfort of the entire vehicle due to their performance and quality. To meet the market's demand for high performance, high reliability, and high efficiency in new energy vehicle axles, axle inspection and testing are particularly important.

[0003] Patent publication number CN217787264U discloses a new energy electric vehicle simulation test aging cabinet, specifically relating to the field of charger aging testing technology. The test cabinet is equipped with a power supply, a microcontroller, an input interface, interface type conversion and identification, a vehicle signal simulator, a single-phase to three-phase or DC switch, a simulated battery load, a current, voltage, power, and energy meter, a vehicle protocol parameter display, a current setting controller, and a host computer interface. This utility model integrates leakage protection detection, high-power consumption aging, current, voltage, power, and energy testing, CC signals, CP signals (protocol current), and host computer interaction tests, greatly improving the efficiency of new energy vehicle chargers during production testing. It can simulate the process of a car being charged, greatly reducing the testing cost of the charger, improving its versatility, and avoiding damage to the car using the charger due to charger failure.

[0004] Although the device has many beneficial effects, the following problems still exist: Although the simulation test aging cabinet greatly reduces the testing cost of the charger, improves the versatility, and avoids damage to the car using the charger due to charger failure, the axle of the new energy vehicle integrates key components such as the motor, electronic control and reducer. Its performance testing involves multiple aspects, including the motor's no-load, load, stall and temperature rise characteristics tests, as well as the axle's torque, speed, power and efficiency performance tests. These tests require a stable power supply and an accurate data acquisition and analysis system. At present, the inspection and maintenance of traditional electric drive axles require professional inspection sites and professional inspection equipment. However, the operating site often does not have these conditions. If the electric drive axle fails during use, it generally needs to be returned to the factory for inspection and repair. The electric drive axle is heavy, the transportation process is inconvenient, and the transportation time cost is high. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a movable new energy vehicle axle detection power supply cabinet, which solves the above-mentioned problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a mobile new energy vehicle axle detection power cabinet, comprising a frame assembly, wherein a power distribution unit, a TMS, a power battery assembly, an electric drive axle distribution module, a BMS, a display screen, a switch, a main power switch, an electronic control unit and a heat dissipation unit are fixedly installed inside the frame assembly, wherein the power distribution unit provides power distribution for the heat dissipation unit, the TMS, the electric drive axle distribution module and the battery, the power distribution unit contains a DCDC converter for voltage conversion, the TMS is used for thermal management of the battery, the power battery assembly supplies power to various electrical appliances, the electric drive axle distribution module can supply power to multiple electric drive axles at the same time, the BMS is used to monitor the battery status, the display screen is used to display basic information of the system power and operating temperature, the switch is used to control the on and off of the low-voltage circuit, and the main power switch is used to control the on and off of the low and high voltage circuits; the electronic control unit is used to control and coordinate the normal operation of various electrical appliances, and the heat dissipation unit is thermally connected to the power distribution unit.

[0009] Preferably, a display screen is fixedly installed on the top of the frame assembly for displaying basic information such as system power and operating temperature. A fuse box is fixedly installed inside the frame assembly for protecting circuit safety. A DC charging interface is fixedly installed on the outer surface of the frame assembly. The DC charging interface adopts the standard of a conventional new energy vehicle charging socket and can be connected for charging through an external charging gun.

[0010] Preferably, a TMS water tank is fixedly installed on the top of the frame assembly, and a water pump is fixedly installed inside the frame assembly for cooperation. The TMS works together with the TMS water tank and the water pump to form a battery cooling water path to ensure the normal operation of the battery under various temperature environments; at the same time, the cooling method of the power distribution unit is the same as the principle of the battery cooling water path, and a heat dissipation unit water tank is fixedly installed on the top of the frame assembly.

[0011] Preferably, universal wheels of the same structure are fixedly installed at the four corners of the bottom of the frame assembly. The four universal wheels enable the power cabinet to move freely. The outer surface of the frame assembly is fixedly installed with an emergency stop switch, a work light, a plug-in cabinet door and a debugging serial port. The emergency stop switch is used to stop the equipment in an emergency, the work light is used to indicate the working status of the equipment, the fuse box and the DC charging interface can be accessed after the plug-in cabinet door is opened, and the debugging serial port can read the working information and historical records of the power cabinet.

[0012] Preferably, the outer surface of the frame assembly is provided with a plurality of equidistantly distributed heat dissipation openings, which ensure that the system operating temperature is appropriate.

[0013] Preferably, an inverter is fixedly installed inside the frame assembly, which can convert the V voltage into low-voltage electricity to power the staff's mobile phone, computer or other debugging equipment. The inverter is electrically connected to a low-voltage interface, which provides low-voltage power output and powers the staff's mobile phone, computer or other debugging equipment through the low-voltage interface.

[0014] Preferably, an external sealing plate assembly is detachably mounted on the outer surface of the frame assembly, and the external sealing plate assembly is used to protect the internal structure.

[0015] (3) Beneficial effects

[0016] Compared with the existing technology, the present invention provides a mobile new energy vehicle axle detection power supply cabinet, which has the following beneficial effects:

[0017] 1. This mobile power cabinet for testing new energy vehicle axles cleverly integrates the power battery and its efficient heat dissipation system, the power distribution unit and its precision cooling system, and all necessary control modules. The compact and coordinated layout not only greatly improves space utilization, but also makes the entire system unparalleled in convenience during the testing, repair, and maintenance of electric drive axles. By reducing discrete components and simplifying connection lines, we ensure the integrity and efficiency of the system, bringing an unprecedented smooth experience to the testing and maintenance of new energy vehicle electric drive axles.

[0018] 2. This mobile new energy vehicle axle testing power cabinet achieves a self-sufficient power supply by directly integrating the power battery into the assembly. It can start and operate without relying on an external power source. The system is extremely flexible and convenient in outdoor operations or after-sales maintenance scenarios. Whether conducting performance testing in remote areas or quickly responding to emergency maintenance tasks, the system can be easily deployed quickly and operate efficiently, greatly improving work efficiency and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of the external sealing plate assembly of the utility model;

[0020] Figure 2 This is a schematic diagram of the external light of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the battery heat dissipation component of the utility model;

[0022] Figure 4 This is a schematic diagram of the heat dissipation component of the power distribution unit of the present invention.

[0023] In the figure: 1. Power distribution unit; 2. TMS water tank; 3. Cooling unit water tank; 4. TMS; 5. Water pump; 6. Power battery assembly; 7. Electric drive axle power distribution module; 8. BMS; 9. Fuse box; 10. Frame assembly; 11. Display screen; 12. Universal wheel; 13. Plug-in cabinet door; 14. Switch; 15. Main power switch; 16. Low-voltage interface; 17. Debug serial port; 18. Emergency stop switch; 19. Work light; 20. External cover assembly; 21. Cooling vent; 22. DC charging interface; 23. Inverter; 24. Electronic control unit; 25. Cooling unit. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-4 , the utility model provides a technical solution:

[0026] A mobile new energy vehicle axle detection power cabinet includes a frame assembly 10, wherein a power distribution unit 1, a TMS 4, a power battery assembly 6, an electric drive axle distribution module 7, a BMS 8, a display screen 11, a switch 14, a main power switch 15, an electronic control unit 24, and a heat dissipation unit 25 are fixedly installed inside the frame assembly 10. The power distribution unit 1 provides power distribution for the heat dissipation unit 25, the TMS 4, the electric drive axle distribution module 7, and the battery. The power distribution unit 1 contains a DCDC converter for voltage conversion, the TMS 4 is used for battery thermal management, the power battery assembly 6 supplies power to various electrical appliances, the electric drive axle distribution module 7 can supply power to multiple electric drive axles at the same time, the BMS 8 is used to monitor the battery status, and the display screen 11 is used to monitor the battery status. It is used to display basic information about the system power and operating temperature. The switch 14 is used to control the on and off of the low-voltage circuit, and the main power switch 15 is used to control the on and off of the low and high-voltage circuits. The electronic control unit 24 is used to control and coordinate the normal operation of each electrical appliance. The heat dissipation unit 25 is thermally connected to the power distribution unit 1. The power distribution unit 1 serves as the power center of the entire system. It is responsible for receiving external power and converting the voltage into a voltage level suitable for each component through the built-in DCDC converter. It provides a stable power supply for the heat dissipation unit 25, TMS4, electric drive bridge distribution module 7 and battery. The power battery assembly 6 serves as a backup or auxiliary power supply to provide power to each electrical appliance. Its status is monitored in real time by the BMS8 to prevent overcharging and over-discharging and ensure battery safety.

[0027] Furthermore, a display screen 11 is fixedly installed on the top of the frame assembly 10 for displaying basic information such as system power and operating temperature. A fuse box 9 is fixedly installed inside the frame assembly 10 for protecting circuit safety. A DC charging interface 22 is fixedly installed on the outer surface of the frame assembly 10. The DC charging interface 22 adopts the standard of a conventional new energy vehicle charging socket and can be connected for charging through an external charging gun. The fuse box 9 is fixedly installed inside the frame assembly 10 for protecting circuit safety and preventing circuit damage caused by short circuit or overload.

[0028] Furthermore, a TMS water tank 2 is fixedly installed on the top of the frame assembly 10, and a water pump 5 is fixedly installed inside the frame assembly 10 for cooperation. The TMS4 cooperates with the TMS water tank 2 and the water pump 5 to form a battery cooling water path, ensuring that the battery works normally under various temperature environments; at the same time, the cooling method of the power distribution unit 1 is the same as the principle of the battery cooling water path. A heat dissipation unit water tank 3 is fixedly installed on the top of the frame assembly 10. The TMS4 cooperates with the TMS water tank 2 and the water pump 5 to form a battery cooling water path, which adjusts the temperature of the battery pack by circulating the coolant to ensure that the battery works normally under various temperature environments.

[0029] Furthermore, universal wheels 12 of the same structure are fixedly installed at the four corners of the bottom of the frame assembly 10. The four universal wheels 12 enable the power cabinet to move freely. The outer surface of the frame assembly 10 is fixedly installed with an emergency stop switch 18, a work light 19, a plug-in cabinet door 13, and a debugging serial port 17. The emergency stop switch 18 is used to stop the equipment in an emergency, and the work light 19 is used to indicate the working status of the equipment. After the plug-in cabinet door 13 is opened, the fuse box 9 and the DC charging interface 22 can be accessed. The debugging serial port 17 can read the working information and historical records of the power cabinet. The universal wheels 12 are installed at the four corners of the bottom of the frame assembly 10, so that the power cabinet can move freely, which is convenient for transfer between different testing sites.

[0030] Furthermore, the outer surface of the frame assembly 10 is provided with a plurality of equally spaced heat dissipation openings 21 , which ensure that the system operating temperature is appropriate. At the same time, the heat dissipation openings 21 on the outer surface of the frame assembly 10 also help the system dissipate heat.

[0031] Furthermore, an inverter 23 is fixedly installed inside the frame assembly 10. The inverter 23 can convert the 220V voltage into low-voltage electricity to power the staff's mobile phones, computers or other debugging equipment. The inverter 23 is electrically connected to the low-voltage interface 16, which provides low-voltage power output and powers the staff's mobile phones, computers or other debugging equipment through the low-voltage interface 16.

[0032] Furthermore, an external sealing plate assembly 20 is detachably mounted on the outer surface of the frame assembly 10. The external sealing plate assembly 20 is used to protect the internal structure, prevent dust, moisture, etc. from entering the system, and improve the durability and safety of the system.

[0033] Working principle: When the staff needs to use the mobile new energy vehicle axle detection power cabinet, the power distribution unit 1 serves as the power center of the entire system, is responsible for receiving external power, and converting the voltage into a voltage level suitable for each component through the built-in DCDC converter. It provides a stable power supply for the heat dissipation unit 25, TMS4, electric drive axle distribution module 7 and battery, etc. The power battery assembly 6 serves as a backup or auxiliary power supply to provide power for various electrical appliances. Its status is monitored in real time by BMS8 to prevent overcharging and over-discharging and ensure battery safety. TMS4 works with TMS water tank 2 and water pump 5 to form a battery cooling water path, which regulates the temperature of the battery pack by circulating coolant. , ensuring that the battery works normally under various temperature environments. At the same time, the cooling method of the power distribution unit 1 also adopts a similar principle. The electric drive axle distribution module 7 can simultaneously supply power to multiple electric drive axles to meet the power demand during the axle detection process. It works in conjunction with the power distribution unit 1 and the power battery assembly 6 to ensure that the electric drive axle obtains a stable and reliable power supply. The display screen 11 is fixedly installed on the top of the frame assembly 10, and displays basic information such as system power and operating temperature in real time, which is convenient for staff to monitor the working status of the power cabinet. The fuse box 9 is fixedly installed inside the frame assembly 10 to protect circuit safety and prevent circuit damage caused by short circuit or overload. The heat dissipation unit 25 and the power distribution unit 1 thermal connection, through the cooling fan and heat sink and other components to discharge heat from the system, to ensure that the power distribution unit 1 operates at a suitable working temperature, at the same time the heat dissipation port 21 on the outer surface of the frame assembly 10 also helps the system to dissipate heat, the universal wheel 12 is installed at the bottom four corners of the frame assembly 10, so that the power cabinet can be moved freely, convenient for transfer between different testing sites, the DC charging interface 22 adopts the conventional new energy vehicle charging socket standard, and can be connected to the external charging gun for charging, to charge the power battery assembly 6, the emergency stop switch 18 in an emergency, press the emergency stop switch to immediately stop the equipment, to ensure the safety of personnel and equipment, the work light 19 is used to indicate the working status of the equipment, convenient for staff to work in the light The power cabinet door 13 is opened to access the fuse box 9 and the DC charging interface 22, which is convenient for circuit protection and charging operations. The debugging serial port 17 can read the working information and historical records of the power cabinet, which is convenient for the staff to troubleshoot and optimize the performance. The inverter 23 is fixedly installed inside the frame assembly 10 and can convert the 220V voltage into low-voltage electricity to power the staff's mobile phones, computers or other debugging equipment. The inverter 23 provides low-voltage power output through the low-voltage interface 16. The external sealing plate assembly 20 is detachably mounted on the outer surface of the frame assembly 10 to protect the internal structure, prevent dust, moisture, etc. from entering the system, and improve the durability and safety of the system.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile new energy vehicle axle detection power cabinet, comprising a frame assembly (10), characterized in that: The frame assembly (10) is internally fixed with a power distribution unit (1), a TMS (4), a power battery assembly (6), an electric drive bridge power distribution module (7), a BMS (8), a display screen (11), a switch (14), a main power switch (15), an electronic control unit (24) and a heat dissipation unit (25). The power distribution unit (1) provides power distribution for the heat dissipation unit (25), the TMS (4), the electric drive bridge power distribution module (7) and the battery. The power distribution unit (1) contains a DCDC converter for voltage conversion. The TMS (4 ) is used for thermal management of the battery, the power battery assembly (6) supplies power to various electrical appliances, the electric drive bridge power distribution module (7) can supply power to multiple electric drive bridges at the same time, the BMS (8) is used to monitor the battery status, the display screen (11) is used to display basic information such as system power and operating temperature, the switch (14) is used to control the on / off of the low-voltage circuit, and the main power switch (15) is used to control the on / off of the low-voltage and high-voltage circuits; the electronic control unit (24) is used to control and coordinate the normal operation of various electrical appliances, and the heat dissipation unit (25) is thermally connected to the power distribution unit (1).

2. A mobile new energy vehicle axle detection power supply cabinet according to claim 1, characterized in that: A display screen (11) is fixedly mounted on the top of the frame assembly (10) for displaying basic information such as system power and operating temperature. A fuse box (9) is fixedly mounted inside the frame assembly (10) for protecting circuit safety. A DC charging interface (22) is fixedly mounted on the outer surface of the frame assembly (10). The DC charging interface (22) adopts a conventional new energy vehicle charging socket standard and can be connected for charging via an external charging gun.

3. The mobile new energy vehicle axle detection power supply cabinet according to claim 1 is characterized in that: A TMS water tank (2) is fixedly mounted on the top of the frame assembly (10), and a water pump (5) is fixedly mounted inside the frame assembly (10) for cooperation. The TMS (4) cooperates with the TMS water tank (2) and the water pump (5) to form a battery cooling water path, thereby ensuring normal operation of the battery under various temperature environments. At the same time, the cooling method of the power distribution unit (1) is the same as the principle of the battery cooling water path. A heat dissipation unit water tank (3) is fixedly mounted on the top of the frame assembly (10).

4. The mobile new energy vehicle axle detection power cabinet according to claim 1 is characterized in that: Universal wheels (12) of the same structure are fixedly installed at the four corners of the bottom of the frame assembly (10). The four universal wheels (12) enable the power cabinet to move freely. An emergency stop switch (18), a work light (19), a plug-in cabinet door (13) and a debugging serial port (17) are fixedly installed on the outer surface of the frame assembly (10). The emergency stop switch (18) is used to stop the equipment in an emergency. The work light (19) is used to indicate the working status of the equipment. After the plug-in cabinet door (13) is opened, the fuse box (9) and the DC charging interface (22) can be accessed. The debugging serial port (17) can read the working information and historical records of the power cabinet.

5. The mobile new energy vehicle axle detection power supply cabinet according to claim 1 is characterized in that: The outer surface of the frame assembly (10) is provided with a plurality of equidistantly distributed heat dissipation openings (21), and the heat dissipation openings (21) ensure that the system operating temperature is appropriate.

6. The mobile new energy vehicle axle detection power supply cabinet according to claim 1 is characterized in that: An inverter (23) is fixedly installed inside the frame assembly (10). The inverter (23) can convert 220V voltage into low-voltage electricity to power the staff's mobile phone, computer or other debugging equipment. The inverter (23) is electrically connected to a low-voltage interface (16). The low-voltage interface (16) provides a low-voltage power output and powers the staff's mobile phone, computer or other debugging equipment through the low-voltage interface (16).

7. The mobile new energy vehicle axle detection power supply cabinet according to claim 1 is characterized in that: An external sealing plate assembly (20) is detachably mounted on the outer surface of the frame assembly (10), and the external sealing plate assembly (20) is used to protect the internal structure.

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