A training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles

Abstract

This utility model discloses a training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles, including a frame with a control area, a testing area, and a precision repair area. This utility model provides a training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles, which can be used for both teaching and training new energy vehicle repair personnel and for applications in new energy vehicle repair enterprises. During operation, this training platform allows for one-button operation of the air conditioning system's charging, recycling, cleaning, and purification functions, and supports functional testing of the compressor even when it is not in the vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicle air conditioning technology, and in particular to a teaching and training platform for testing and repairing circuit boards of air conditioning compressors for new energy vehicles. Background Technology

[0002] With the rapid increase in the number of new energy vehicles, a series of related issues have gradually surfaced, attracting widespread attention. A survey of the new energy vehicle repair market revealed that electric compressors account for as much as 25% of the failure rate in air conditioning systems. Currently, the new energy vehicle repair industry generally adopts a "whole unit replacement" repair strategy. This practice not only significantly increases repair costs for car owners, but also, since electric compressors are not commonly used spare parts, car owners often have to wait for them to be ordered, further increasing time costs. Moreover, while the compressor circuit board may only have minor problems that can be easily repaired, most are scrapped, increasing the burden on car owners and being contrary to environmental protection principles.

[0003] To address the training needs of new energy vehicle maintenance personnel, existing technologies offer several practical training solutions. For example, patent CN211403691U discloses a new energy vehicle air conditioning training platform, which connects the air outlet and inlet pipes of the air conditioning system to an air conditioning simulation box, allowing the air conditioning system to operate in a simulated environment, reducing external interference and improving the realism of the cooling / heating effect training. Another patent, CN216957280U, describes an air conditioning system testing platform for a specific new energy vehicle model. While it enables off-vehicle training, its versatility is limited.

[0004] Therefore, the current new energy vehicle repair industry, especially the electric compressor repair field, faces the dual challenges of high repair costs, resource waste, and lagging professional talent training, as well as training equipment that is not targeted enough and lacks versatility. Utility Model Content

[0005] The purpose of this utility model is to provide a teaching and training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles includes a frame, on which a control area, a testing area, and a precision repair area are provided.

[0008] The control area includes a main control panel, an air conditioning maintenance system, a communication control panel, a high-pressure output control panel, and a control area camera. The main control panel is equipped with a pressure sensor and can control the air conditioning maintenance system. The air conditioning maintenance system can perform refrigerant charging, recovery, cleaning, and purification. The main control panel, communication control panel, and high-pressure output control panel are all connected to the controller and the main control board.

[0009] The test area includes a test bench, a base, and a test area camera. The base is used to fix the air conditioner compressor to be tested. The test area camera is set above the test bench. The air conditioner compressor is connected to the communication operation panel and the high-voltage output control panel.

[0010] The finishing area includes a repair bench, a multimeter, an oscilloscope, a quick-test plug, a video industrial microscope, a finishing area camera, a monitor, and an air pump soldering station. The video industrial microscope is mounted on the repair bench, the monitor is mounted above the repair bench, the multimeter and oscilloscope are mounted on the edge of the repair bench and connected to the quick-test plug, and the control area camera, finishing area camera, and test area camera are connected to the monitor.

[0011] Furthermore, the training platform also includes a power supply system for powering the control area, testing area, and finishing area. The power supply system includes a DC high-voltage power supply, an AC / DC control transformer, a power switch, and a surge protector.

[0012] Furthermore, the finishing area is also equipped with a fume purifier for purifying welding fumes.

[0013] Furthermore, the air conditioning inspection system is connected to the high-pressure connector and low-pressure connector of the automotive air conditioning system to be tested via high-pressure pipelines and low-pressure pipelines, respectively.

[0014] Furthermore, a maintenance tool cabinet is provided below the maintenance bench.

[0015] Furthermore, the communication operation panel can send and receive CAN / PWM / LIN communication messages, and can achieve single-component drive of the air conditioner compressor through point-to-point transmission of CAN / PWM / LIN messages.

[0016] Furthermore, the DC high voltage output range controlled by the high voltage output control panel is 200-600V.

[0017] Furthermore, the control area is also equipped with an emergency stop switch.

[0018] Furthermore, the training platform also includes a Modbus PLC controller and a control motherboard connected to it. The Modbus PLC controller is also connected to the air conditioning maintenance system, and the control motherboard is connected to the main operation panel, the communication operation panel, the high-voltage output control panel, the camera in the control area, the camera in the test area, and the camera in the precision repair area.

[0019] Beneficial effects:

[0020] This utility model provides a training platform for testing and repairing circuit boards of air conditioning compressors for new energy vehicles, which can be used for teaching and training new energy vehicle repair talents and can also meet the needs of new energy vehicle repair enterprises. The training platform can realize one-button operation of air conditioning system charging, recycling, cleaning and purification, and supports the functional testing of compressor when it is away from the vehicle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a front view of the present invention.

[0023] The diagram is labeled as follows: 1. Control area; 11. Main control panel; 12. Communication control panel; 13. High voltage output control panel; 14. Connector; 15. Emergency stop switch; 16. Mounting cabinet.

[0024] 2. Test area; 21. Camera;

[0025] 3. Fine-tuning area; 31. Mounting rack; 32. Monitor; 33. Repair tool cabinet; 34. Fume purifier; 35. Air pump soldering station; 36. Multimeter; 37. Oscilloscope. Detailed Implementation

[0026] In the description of this embodiment, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within 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.

[0027] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described in detail in this application. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example

[0029] This embodiment provides a teaching and training platform for testing and repairing circuit boards of air conditioning compressors in new energy vehicles, such as... Figure 1 and Figure 2 As shown, the system includes a test bench divided into three areas from left to right: control area 1, test area 2, and repair area 3. It also includes a power supply system for these areas, as well as a connected Modbus PLC controller and control motherboard. The control motherboard is connected to the main operation panel 11, communication operation panel 12, high-voltage output control panel 13, and cameras 21 in control area 1, test area, and repair area. The Modbus PLC controller is also connected to an air conditioning maintenance system. The power supply system includes a DC high-voltage power supply, an AC / DC control transformer, a power switch, relays, and surge protectors. In this embodiment, the AC / DC control transformer is a BK series transformer, and the relays are Schneider RXM miniature relays (model RXM2AB2BD).

[0030] Specifically, control area 1, serving as the control core of the training platform, integrates a main operation panel 11, an air conditioning maintenance system, a communication operation panel 12, a high-voltage output control panel 13, and a camera 21 located above, all electrically connected to the Modbus PLC controller and the control motherboard. The air conditioning maintenance system is installed in the mounting cabinet 16 below. In this embodiment, a Mitsubishi FX3U-16MR / ES-A type PLC is used as the Modbus PLC controller.

[0031] The main control panel 11 includes buttons, a touchscreen display, and a pressure sensor. An air conditioning maintenance system is installed below the main control panel 11. Operators can directly send commands to the Modbus PLC controller via the touchscreen display and buttons. The air conditioning maintenance system connects to the high-pressure and low-pressure connectors of the vehicle's air conditioning system under test via high-pressure and low-pressure lines, respectively. Specifically, connectors 14 for high-pressure and low-pressure lines are located in the operating area for easy connection. After receiving commands, the Modbus PLC controller drives the air conditioning maintenance system to perform operations such as refrigerant charging, recovery, cleaning, and purification. An air pump is also included to provide pneumatic power to the air conditioning maintenance system. The pressure sensor can collect the pressure of the high-pressure and low-pressure lines of the air conditioning system in real time and transmit the collected data to the control motherboard. After processing, the data is displayed on the screen, allowing operators to determine the cause of the fault, such as insufficient refrigerant or insufficient air conditioning compressor capacity. Specifically, regarding the air conditioning maintenance system, this embodiment uses an integrated automotive air conditioning refrigerant charging and recovery machine, whose working principle of refrigerant charging, recovery, cleaning, and purification is existing technology.

[0032] The communication control panel 12 also includes a touch screen, which is connected to the air conditioning compressor. Operators can directly communicate with and receive feedback from the air conditioning compressor via CAN / PWM / LIN messages on the touch screen. By combining this feedback with the airflow and pressure at the air vents, operators can determine whether the air conditioning compressor is working and make a preliminary judgment as to whether its malfunction is due to a damaged circuit board. Operators can also achieve single-component drive of the air conditioning compressor through point-to-point CAN / PWM / LIN message transmission.

[0033] The high-voltage output control panel 13 is connected to a DC high-voltage power supply, which in turn is connected to an AC / DC control transformer. The AC / DC control transformer ensures that the DC high-voltage power supply can convert low-voltage electricity into 200-600V high-voltage DC electricity. Operators can send commands through the high-voltage output control panel 13 to control the output voltage of the DC high-voltage power supply, thereby adapting to the voltage requirements of different models of new energy vehicle air conditioning compressors.

[0034] Furthermore, in this embodiment, the control area 1 is also equipped with a display for ambient temperature and air conditioning temperature.

[0035] Therefore, by operating the various panels in the control area 1, one-click operation of refrigerant charging, recycling, cleaning, and purification of the air conditioning system can be achieved. Compared with machines on the market that can only charge and recycle refrigerant or only clean and purify, this simplifies the operation. The training platform in this embodiment realizes equipment integration, which not only simplifies the process but also reduces learning costs and waste of consumables.

[0036] Specifically, test area 2 includes a test bench, a base, and a test area camera 21. The air conditioning compressor to be tested can be installed on this base. The communication operation panel 12 sends CAN / PWM / LIN communication messages to simulate vehicle ECU commands, thereby determining whether the abnormal operation is caused by a circuit board failure. It can also work with the pressure and temperature sensors in control area 1 to determine whether insufficient pressure is caused by internal wear of the air conditioning compressor, thus achieving non-disassembly testing of the air compressor. The test area camera 21 is set above the test bench to record the operation of the air conditioning compressor in real time. The air conditioning compressor is also connected to the high-voltage output control panel 13, which supplies it with DC high-voltage power. The high-voltage output control panel 13 controls the output of the DC high-voltage power supply to provide a suitable voltage for the air conditioning compressors of different models of new energy vehicles.

[0037] Therefore, the air conditioning compressor can be detected when it leaves the vehicle by operating the communication operation panel 12 and the high-voltage output control panel 13.

[0038] Specifically, the repair area 3 includes a repair bench, a multimeter 36, two oscilloscopes 37, a quick-test connector, a video industrial microscope, a camera 21 for the repair area 3, a monitor 32, and an air-pump soldering station 35. The air-pump soldering station 35 is equipped with a soldering gun. The video industrial microscope is mounted on the repair bench via a mounting bracket 31. The monitor 32 is mounted above the repair bench. The multimeter 36 and oscilloscopes 37 are mounted on the edge of the repair bench and connected to the quick-test connector. The camera 21 in the repair area 3 and the test area camera 21 are connected to the monitor 32. When repairing the compressor circuit board, the multimeter 36 and oscilloscopes 37 can be connected via the quick-test connector for testing, and the video industrial microscope can be used for observation. If there are problems with the chip pins, they can be repaired using the soldering gun. The lens of the video industrial microscope is aimed at the repair station, while the camera 21 in the precision repair area 3 above it can capture the repair process in real time and display it on the top monitor 32. The images captured by the cameras 21 in the control area 1 and the test area camera 21 in the test area 2 are also displayed on the monitor 32. In this embodiment, two monitors 32 can be set up to display different images for students to learn from. Therefore, the monitor 32 can be used to demonstrate the repair process, facilitating multiple viewers to learn during teaching and training. Students can operate the equipment while other students learn through the monitor 32, taking turns to quickly master the relevant skills.

[0039] Therefore, faults in the air conditioner compressor circuit board can be quickly repaired through the repair area 3.

[0040] Preferably, the finishing area 3 is also equipped with a fume purifier 34 for purifying welding fumes. Specifically, the pipe outlet is placed at the maintenance station under the lens of a video industrial microscope, so that the fumes generated during welding can be sucked into the pipe, preventing operators from inhaling harmful fumes and protecting the respiratory system and health of trainees. On the other hand, it maintains the cleanliness of the air in the working environment around the training platform, providing safe and hygienic operating conditions for teaching and training. Especially in teaching scenarios with multiple participants, it can effectively reduce the impact of environmental pollution on the health of the group.

[0041] Preferably, a maintenance tool cabinet 33 is provided below the maintenance table to store miscellaneous tools and ensure the efficiency of tool retrieval during maintenance operations.

[0042] Preferably, the control area 1 is also equipped with an emergency stop switch 15, so that the power can be cut off with one button in an emergency, ensuring operational safety.

[0043] Work process:

[0044] When it is necessary to test and repair the circuit board of the air conditioning compressor of a new energy vehicle, first fix the compressor on the base in test area 2. To test the overall condition of the air conditioning system, connect the high and low pressure lines in control area 1 to the corresponding connectors 14 of the vehicle's air conditioning system, and start the functions such as charging and recovery with one button on the control panel. At the same time, observe the pressure sensor data to determine the system pressure-related faults.

[0045] To test whether the compressor is working, output a suitable DC high voltage through the high voltage output control panel 13, send a communication message through the communication operation panel 12, observe whether the air conditioner compressor responds and the air volume and pressure at the air conditioner outlet, determine the compressor's working status, and at the same time, make a preliminary judgment on whether the circuit board is faulty by observing the sending and receiving of communication messages.

[0046] Once the circuit board fault is confirmed, it is removed and connected to a multimeter 36, oscilloscope 37, etc. in the precision repair area 3 to detect the specific fault point. After locating the fault point, a video industrial microscope is used for precise positioning, and the welding torch of the air pump soldering station 35 is used for repair. During the repair process, the fume purifier 34 is turned on, and the repair progress is displayed on the monitor 32 for teaching purposes.

[0047] After the electric compressor is repaired, it can be installed back into the vehicle. By connecting the high and low pressure lines of control area 1 to the corresponding connectors of the vehicle's air conditioning system, functions such as refueling and regeneration can be activated with a single button on the control panel. Simultaneously, the pressure sensor and air vent temperature data can be observed to determine the working status of the repaired air conditioning system. Alternatively, the electric compressor can be connected to the corresponding connector on the training platform. A suitable DC high voltage can be output through the high-voltage output control panel 13, and communication messages can be sent using the communication control panel 12 to observe whether the air conditioning compressor responds and the airflow and pressure at the air vents. This allows for off-vehicle testing of the electric compressor, enabling new energy vehicle repair companies to accept repair requests from other companies, increasing business volume and profit margins, and reducing resource waste.

[0048] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A new energy automobile air conditioner compressor circuit board detection and maintenance teaching practice platform, comprising a rack, characterized in that: The test bench is equipped with an operating area, a testing area, and a finishing area. ​ The control area includes a main control panel, an air conditioning maintenance system, a communication control panel, a high-pressure output control panel, and a control area camera. The main control panel is equipped with a pressure sensor and can control the air conditioning maintenance system. The air conditioning maintenance system can perform refrigerant charging, recovery, cleaning, and purification. The main control panel, communication control panel, and high-pressure output control panel are all connected to the controller and the main control board. The test area includes a test bench, a base, and a test area camera. The base is used to fix the air conditioner compressor to be tested. The test area camera is set above the test bench. The air conditioner compressor is connected to the communication operation panel and the high-voltage output control panel. The finishing area includes a repair bench, a multimeter, an oscilloscope, a quick-test plug, a video industrial microscope, a finishing area camera, a monitor, and an air pump soldering station. The video industrial microscope is mounted on the repair bench, the monitor is mounted above the repair bench, the multimeter and oscilloscope are mounted on the edge of the repair bench and connected to the quick-test plug, and the control area camera, finishing area camera, and test area camera are connected to the monitor.

2. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The training platform also includes a power supply system for the control area, testing area and finishing area. The power supply system includes a DC high-voltage power supply, an AC / DC control transformer, a power switch and a surge protector.

3. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The finishing area is also equipped with a fume purifier for purifying welding fumes.

4. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The air conditioning repair system is connected to the high-pressure connector and low-pressure connector of the vehicle air conditioning system to be tested via high-pressure and low-pressure pipelines, respectively.

5. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: A repair tool cabinet is installed below the repair bench.

6. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The communication operation panel can send and receive CAN / PWM / LIN communication messages, and can achieve single-component drive of the air conditioner compressor through point-to-point transmission of CAN / PWM / LIN messages.

7. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The DC high voltage output range controlled by the high voltage output control panel is 200-600V.

8. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to claim 1, characterized in that: The control area is also equipped with an emergency stop switch.

9. The new energy automobile air conditioner compressor circuit board detection and maintenance teaching and training platform according to any one of claims 1 to 8, characterized in that: The training platform also includes a Modbus PLC controller and a control motherboard connected to it. The Modbus PLC controller is also connected to the air conditioning maintenance system. The control motherboard is connected to the main operation panel, the communication operation panel, the high-voltage output control panel, the camera in the control area, the camera in the test area, and the camera in the precision repair area.

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