Touch screen function test box of multi-H-bridge control electric valve

Abstract

The utility model discloses a touch screen function test box of a multi-H-bridge control electrically operated valve, which comprises a multi-channel test box composed of a test box front panel, a test box rear panel, a test box left side plate and a test box right side plate. A touch screen is mounted on a front panel of the test box; a plurality of aviation plugs are arranged on the left side plate of the test box; the test box right side plate is provided with a main switch, an adapter plug, a power indicating lamp, an RS232 interface, a mode indicating lamp, a mode selection button and a mode determination button. The multifunctional test box is connected with the power adapter; the multifunctional test box is connected with the CAN transceiver; the electric valve test box has the advantages of being easy and convenient to operate, accurate in control, stable in operation, diversified in function and the like, meets the test and control requirements of various electric valves, simplifies the operation process and reduces the operation difficulty by installing the touch screen on the test box, and can control a plurality of electric valves at the same time to conduct accurate control tests.

Description

Technical Field

[0001] This utility model relates to the technical field of electric valve testing equipment, specifically to a multi-functional test box with a touch screen for controlling electric valves with multiple H-bridges. Background Technology

[0002] Currently, with increasingly stringent national emission regulations, electric valves are widely used in the automotive industry, where they work synergistically to significantly improve the quality control of vehicle exhaust emissions. However, in actual production, inspection, testing, and experimentation, the control requirements for electric valves are complex and diverse, sometimes requiring the simultaneous operation of multiple devices. Our previous test kit (patent number: CN216247187U - An Electric Valve Durability Testing System) established a connection with a computer via the CAN communication protocol, and then used a host computer to control the electric valves. During daily production testing and field testing, it was necessary to carry not only the control kit but also a computer, which was inconvenient to carry. Testing electric valves already installed in the engine was also difficult, the control method was relatively cumbersome, and the operation was difficult. Furthermore, it could not achieve simultaneous control of multiple electric valves, which undoubtedly limited its application efficiency and flexibility. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a touch screen functional test box for multi-H bridge controlled electric valves, which can accurately control multiple devices, simplify the operation process, reduce the difficulty of operation, and improve the working efficiency of the test box.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A touchscreen functional test box for multi-H-bridge controlled electric valves includes a multi-channel test box that connects simultaneously to several electric valves. The multi-channel test box consists of a front panel, a rear panel, a left side panel, and a right side panel. A touchscreen for easy operation and control is mounted on the front panel. Several aviation connectors for connecting to the electric valves are located on the left side panel. The right side panel includes a main switch, an adapter plug, a power indicator light, an RS232 interface, a mode indicator light, a mode selection button, and a mode confirmation button. The multi-functional test box connects to a power adapter via the adapter plug and to a CAN transceiver via the RS232 interface.

[0006] The above-mentioned touch screen function test box for a multi-H-bridge controlled electric valve has six electric valves.

[0007] The aforementioned touchscreen function test box for a multi-H-bridge controlled electric valve includes a control circuit board based on an S32K144 main control chip, a current detection chip, a power control chip, and an SD card. The control circuit board includes a power control circuit, an H-bridge motor drive circuit connected to an aviation connector, a current detection circuit connected to the current detection chip, a main control chip (MCU) circuit, a voltage detection circuit connected to the voltage detection chip, a power indicator circuit, a mode indicator circuit, an SD card storage circuit connected to the SD card, a touchscreen interface circuit, and a CAN chip circuit connected to a CAN transceiver.

[0008] The aforementioned touchscreen function test box for a multi-H-bridge controlled electric valve includes a touchscreen front panel, a touchscreen back panel, and a T5L main control chip. The touchscreen front panel is equipped with a display screen, which has corresponding selection buttons for PWM mode, opening control mode, voltage control mode, random control mode, and one-key detection mode. The touchscreen back panel is equipped with an SD card interface, a PGT05 interface, an extended FLASH interface, an RTC module, a buzzer interface, and a touchscreen interface.

[0009] Due to the adoption of the above technical solutions, the technological progress achieved by this utility model is as follows.

[0010] This utility model provides a touch screen functional test box for multi-H-bridge controlled electric valves. It features simple operation, precise control, stable operation, and diverse functions, making it suitable for testing and controlling various electric valves. By installing a touch screen on the test box and introducing touch display control technology, the operation process is simplified and the operation difficulty is reduced. It can also control multiple electric valves simultaneously for precise control testing, greatly improving work efficiency and accuracy. This meets the various needs of actual production inspection, testing, and experimentation. Furthermore, the use of a robust and durable aluminum metal shell and the design of the internal circuitry ensure the long-term stable operation and reliability of the equipment. Attached Figure Description

[0011] Figure 1 This is a structural block diagram of the present invention;

[0012] Figure 2 This is a schematic diagram of the specific structure of the front panel of the test box described in this utility model;

[0013] Figure 3 This is a schematic diagram of the specific structure of the rear panel of the test box described in this utility model;

[0014] Figure 4 This is a schematic diagram of the specific structure of the left side panel of the test box described in this utility model;

[0015] Figure 5 This is a schematic diagram of the specific structure of the right side panel of the test box described in this utility model;

[0016] Figure 6 This is a schematic diagram of the specific structure of the touch screen front panel of this utility model;

[0017] Figure 7 This is a schematic diagram of the specific structure of the touch screen back panel of this utility model;

[0018] Figure 8 This is a circuit diagram of the power control circuit of this utility model;

[0019] Figure 9 This is a circuit diagram of the H-bridge motor drive circuit of this utility model;

[0020] Figure 10 This is a circuit diagram of the current detection circuit of this utility model;

[0021] Figure 11 This is a circuit diagram of the MCU circuit, the main control chip of this utility model.

[0022] Figure 12 This is a circuit diagram of the voltage detection circuit of this utility model;

[0023] Figure 13 This is the circuit diagram of the power supply lamp circuit of this utility model;

[0024] Figure 14 This is the circuit diagram of the mode lamp circuit of this utility model;

[0025] Figure 15 This is a circuit diagram of the touch screen interface circuit of this utility model;

[0026] Figure 16 This is a circuit diagram of the SD card storage circuit of this utility model;

[0027] Figure 17 This is a circuit diagram of the CAN chip circuit of this utility model.

[0028] The components include: 1. Multi-channel test box, 2. Electric valve, 3. Touch screen, 4. Power adapter, 5. CAN transceiver, 6. Test box front panel, 7. Test box rear panel, 8. Test box left side panel, 9. Aviation connector, 10. Touch screen front panel, 11. Touch screen back panel, 12. Test box right side panel, 13. Main switch, 14. Adapter connector, 15. Power indicator light, 16. RS232 interface, 17. Mode indicator light, 18. Mode selection button, and 19. Mode confirmation button. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] A touchscreen function test box for a multi-H-bridge controlled electric valve, such as Figures 1 to 17 As shown, it includes a multi-channel test box 1, which is connected to an electric valve 2. A touch screen 3 is installed on the multi-channel test box 11. The multi-channel test box 1 is connected to a power adapter 4 and also to a CAN transceiver 5.

[0031] In this embodiment, there are six electric valves 2, and the number of electric valves can be set according to actual needs.

[0032] The multi-channel test box 1 consists of a front panel 6, a rear panel 7, a left side panel 8, and a right side panel 12. The front panel 6, rear panel 7, left side panel 8, and right side panel 12 are all made of aluminum to ensure the durability of the test box.

[0033] The touch screen 3 is mounted on the front panel 6 of the test box, and the left side panel 8 of the test box is equipped with an aviation plug 9 that connects to the electric valve 2.

[0034] The right side panel 12 of the test box is equipped with a main switch 13, an adapter plug 14, a power indicator light 15, an RS232 interface 16, a mode indicator light 17, a mode selection button 18, and a mode confirmation button 19.

[0035] The power adapter 4 is connected to the multi-function test box 1 via the adapter plug 14 and supplies power to the multi-function test box 1, the power indicator light 15, and the mode indicator light 17.

[0036] The CAN transceiver 5 is connected to the multi-function test box 1 via the RS232 interface 16.

[0037] The touch screen 3 includes a touch screen front panel 10, a touch screen back panel 11, and a T5L main control chip, which can display test information in real time and facilitate the selection and control of operation modes.

[0038] The front panel 10 of the touch screen is equipped with a display screen, which has corresponding selection buttons for PWM mode, opening control mode, voltage control mode, random control mode and one-key detection mode.

[0039] The touchscreen back panel 11 is equipped with an SD card interface, a PGT05 interface, an extended FLASH interface, an RTC module, a buzzer interface, and a touchscreen interface.

[0040] Test box 1 contains a control circuit board based on the S32K144 main control chip, a current detection chip, a power control chip, and an SD card.

[0041] The S32K144 main control chip, as the core of the overall computing and control, ensures the efficient operation and precise control of the test box.

[0042] The control circuit board includes a power control circuit, an H-bridge motor drive circuit, a current detection circuit, a main control chip (MCU) circuit, a voltage detection circuit, a power indicator circuit, a mode indicator circuit, an SD card storage circuit, a touch screen interface circuit, and a CAN chip circuit.

[0043] The H-bridge motor drive circuit is connected to the aviation plug 9. By setting up six sets of H-bridge motor drive circuits to control the electric valve 2 respectively, simultaneous multi-channel control can be achieved.

[0044] The current detection circuit is connected to the current detection chip, and the voltage detection circuit is connected to the voltage detection chip. The current detection chip and the power control chip can modify the motor current and power supply status in real time for monitoring and control, ensuring the stable operation of the equipment.

[0045] The CAN chip circuit is connected to the CAN transceiver 5.

[0046] The mode indicator circuit is mainly used to display the current working mode, making it convenient for users to operate and monitor intuitively.

[0047] The SD card storage circuit is used to store test data and results, facilitating subsequent data analysis and processing by users.

[0048] In use, first, connect the power adapter 4 to the adapter interface 14 of the multi-functional test box 1 to provide power to the test box. Then, connect the six sets of aviation plugs 9 one by one to the electric valve 2 under test. The test box can then establish communication with these six electric valves at the same time, preparing for subsequent tests.

[0049] Then, press the main switch 13. The test box will start, and the power indicator light 15 will turn green, indicating that the test box is functioning normally. At the same time, the touch screen 3 will also light up, displaying an intuitive graphical interface.

[0050] The type of electric valve 2 can be selected by pressing the mode selection button 18 on the test box. At the same time, the mode indicator light 17 will change accordingly. The red light represents a PWM type valve, the green light corresponds to a CAN type valve, and the blue light represents a non-intelligent valve. After selecting the valve type, press the mode confirmation button 19, and the test box will automatically lock the mode to ensure consistency in subsequent operations.

[0051] Taking a non-intelligent valve as an example, after selecting the valve type as a non-intelligent valve, a series of control mode buttons will be displayed on the touch screen 3, including PWM mode, opening control mode, voltage control mode, random control mode and one-key detection mode.

[0052] In PWM mode, the duty cycle can be adjusted in real time via a slider or a digital input box to achieve precise control of valve action.

[0053] In the opening control mode, the target opening value can be set directly by the touch screen, and the system provides real-time feedback on the current opening.

[0054] In voltage control mode, the target voltage can be adjusted by inputting values ​​on the touch screen 3, and the system displays and controls the valve voltage in real time.

[0055] The random control mode sets a random rate of change in valve opening, which can simulate complex working conditions in real-world applications.

[0056] The one-click detection mode can automatically operate the valve to the maximum and minimum positions, and the system collects and displays key voltage values ​​to facilitate troubleshooting.

[0057] The touchscreen allows for simultaneous application of the above modes to six sets of electric valves, enabling parallel control. Simply set the parameters for each valve individually on the touchscreen, and the test box will execute synchronously, greatly improving testing efficiency.

[0058] After the test is completed, turn off the main switch of the test box, disconnect the connection between the aviation plug 9 and the electric valve 2, and unplug the power adapter 4 to ensure that the equipment is in a safe state.

[0059] This utility model provides a touch screen functional test box for multi-H-bridge controlled electric valves. It features simple operation, precise control, stable operation, and diverse functions, making it suitable for testing and controlling various electric valves. By installing a touch screen on the test box and introducing touch display control technology, the operation process is simplified and the operation difficulty is reduced. It can also control multiple electric valves simultaneously for precise control testing, greatly improving work efficiency and accuracy. This meets the various needs of actual production inspection, testing, and experimentation. Furthermore, the use of a robust and durable aluminum metal shell and the design of the internal circuitry ensure the long-term stable operation and reliability of the equipment.

Claims

1. A touchscreen function test box for a multi-H-bridge controlled electric valve, characterized in that: The test box (1) is a multi-channel test box that is connected to several electric valves (2) at the same time. The multi-channel test box (1) consists of a front panel (6), a rear panel (7), a left side panel (8), and a right side panel (12). The front panel (6) is equipped with a touch screen (3) for easy operation and control. The left side panel (8) is equipped with several aviation plugs (9) for connecting to the electric valves (2). The right side panel (12) is equipped with a main switch (13), an adapter plug (14), a power indicator (15), an RS232 interface (16), a mode indicator (17), a mode selection button (18), and a mode confirmation button (19). The multi-channel test box (1) is connected to a power adapter (4) through the adapter plug (14). The multi-channel test box (1) is connected to a CAN transceiver (5) through the RS232 interface (16).

2. The touchscreen function test box for a multi-H-bridge controlled electric valve according to claim 1, characterized in that: The number of electric valves (2) is six.

3. The touchscreen function test box for a multi-H-bridge controlled electric valve according to claim 1, characterized in that: The test box (1) is equipped with a control circuit board based on the S32K144 main control chip, a current detection chip, a power control chip and an SD card. The control circuit board is equipped with a power control circuit, an H-bridge motor drive circuit connected to the aviation plug (9), a current detection circuit connected to the current detection chip, a main control chip MCU circuit, a voltage detection circuit connected to the voltage detection chip, a power lamp circuit, a mode lamp circuit, an SD card storage circuit connected to the SD card, a touch screen interface circuit and a CAN chip circuit connected to the CAN transceiver (5).

4. The touchscreen function test box for a multi-H-bridge controlled electric valve according to claim 1, characterized in that: The touch screen (3) includes a touch screen front panel (10), a touch screen back panel (11), and a T5L main control chip; the touch screen front panel (10) is provided with a display screen, and the display screen is provided with selection buttons for PWM mode, opening control mode, voltage control mode, random control mode and one-key detection mode; the touch screen back panel (11) is provided with an SD card interface, a PGT05 interface, an extended FLASH interface, an RTC module, a buzzer interface and a touch screen interface.

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