A portable multifunctional electronic component off-line electric detection device for automobile

Abstract

The utility model discloses a portable multifunctional automobile electronic component offline electric detection device, including casing, circuit mechanism and display screen, the circuit mechanism includes PCBA board and sets up circuit module on PCBA board, the circuit module includes control unit, SOC chip, CAN transceiver, LIN transceiver serial communication and on-off / current detection current unit, control unit is provided with CAN transceiver, LIN transceiver serial communication and on-off / current detection current unit between parallelly arranged with multifunctional detection interface respectively, control unit is connected with SOC chip through serial communication, and SOC chip is connected with the display screen of outside, wireless communication module respectively, the utility model can integrate the automatic detection to multiple automobile electronic components, and the structure is simple, highly integrated, has reduced production line equipment investment and floor area, possesses portable, simple operation's advantage, and the convenient inspection personnel is in factory or goes out and uses the flexible movement, has improved the detection efficiency greatly.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive electrical testing equipment, specifically relating to a portable multi-functional automotive electronic component offline electrical testing device. Background Technology

[0002] In automotive assembly lines, various electronic components require power-on functionality testing to ensure they function properly and meet factory standards. Current common testing methods suffer from the following problems: (1) Specialization and single use: Traditional electrical testing equipment is mostly "one machine for one use", that is, one testing equipment can only test one type of product or one type of product (such as only testing ambient lights or only testing electric air vents), which leads to the need for multiple equipment in the production line, which takes up space, costs a lot, and is complicated to manage.

[0003] (2) Non-portable: Many testing devices are bulky and inconvenient to move, making them difficult to use flexibly at different workstations on the production line or inside vehicles, resulting in low testing efficiency.

[0004] (3) Low level of automation: Some detection relies on manual visual and auditory judgment, which is highly subjective and prone to missed detection and false detection. Furthermore, it cannot automatically record detection data and results, which is not conducive to quality traceability.

[0005] (4) Complex wiring: The detection harness and interface need to be frequently replaced for different components, which is cumbersome, prone to errors, and the harness wears out quickly. Utility Model Content

[0006] The purpose of this invention is to provide a portable, multifunctional automotive electronic component off-line electrical testing device, which aims to enable portable testing of electronic components.

[0007] This utility model is mainly achieved through the following technical solutions: A portable, multifunctional automotive electronic component off-line electrical testing device includes a housing, a circuit mechanism, and a display screen. The circuit mechanism includes a PCBA board and circuit modules mounted on the PCBA board. The PCBA board is located in the middle of the housing, and the display screen is located on one side of the outer side of the housing. A power interface and a multifunctional testing interface are located on one side of the PCBA board. The circuit modules include a control unit, a SOC chip, a CAN transceiver, a LIN transceiver serial communication unit, and a continuity / current detection unit. The CAN transceiver, LIN transceiver serial communication unit, and continuity / current detection unit are connected in parallel between the control unit and the multifunctional testing interface. The control unit is connected to the SOC chip via serial communication, and the SOC chip is connected to the outer display screen and the wireless communication module.

[0008] To better realize this utility model, the circuit module further includes a voltage regulator module, one end of which is connected to the power interface, and the other end is connected to the control unit and the SOC chip respectively.

[0009] To better realize this utility model, the PCBA board is further provided with a USB flash drive interface at its end, which is connected to the SOC chip.

[0010] To better realize this utility model, the control unit is model KF32A156, and the USB flash drive interface is a USB Host interface.

[0011] To better realize this utility model, the housing further includes an upper housing and a lower housing, a PCBA board is embedded and installed between the upper housing and the lower housing, and a clearance groove is provided at the top of the upper housing and the lower housing corresponding to the power interface and the multi-function detection interface; a display screen is embedded on the outer side of the upper housing.

[0012] To better realize this utility model, the bottom of the upper housing is provided with a wire-passing groove, and the bottom of the lower housing is correspondingly provided with a receiving groove.

[0013] The beneficial effects of this utility model are as follows: This invention integrates automated testing of various automotive electronic components. Its simple structure and high integration reduce production line equipment investment and floor space requirements. It is portable and easy to operate, allowing inspection personnel to move flexibly between the factory and other locations, significantly improving testing efficiency. Furthermore, the intuitive and easy-to-understand graphical touchscreen interface reduces operator training costs and operational complexity. Secondly, the USB interface supports on-site software upgrades to meet the needs of iterative testing functions and fault repair. Maintenance can be completed without returning the equipment to the factory or disassembling it, supporting continuously changing product testing requirements, extending the equipment's lifespan, and avoiding production line downtime and high maintenance costs due to software updates, demonstrating its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 A schematic diagram of the electrical system; Figure 4 This is a flowchart of the usage in Example 1.

[0015] The components are: 1-display screen, 2-upper housing, 3-power interface, 4-USB flash drive interface, 5-multi-function detection interface, 6-lower housing, and 7-PCBA board. Detailed Implementation

[0016] Example 1: A portable, multi-functional electrical testing device for automotive electronic components after production line, such as Figures 1-3 As shown, the device includes a housing, a circuit mechanism, and a display screen 1. The circuit mechanism includes a PCBA board 7 and circuit modules mounted on the PCBA board 7. The PCBA board 7 is located in the middle of the housing, and the display screen 1 is located on one side of the outer side of the housing. A power interface 3 and a multi-function detection interface 5 are located on one side of the PCBA board 7. The circuit module includes a control unit, a SOC chip, a CAN transceiver, a LIN transceiver serial communication unit, and a continuity / current detection unit. The control unit is connected in parallel with the multi-function detection interface 5 via the CAN transceiver, the LIN transceiver serial communication unit, and the continuity / current detection unit. The control unit is connected to the SOC chip via serial communication, and the SOC chip is connected to the outer display screen 1 and the wireless communication module.

[0017] Preferably, the display screen 1 is an existing touch display screen 1. The touch display screen 1 is embedded in the surface of the housing and electrically connected to the control unit, used to provide a human-machine interface to display detection options, operation buttons and detection results.

[0018] Preferably, such as Figure 3 As shown, the circuit module also includes a voltage regulator module, one end of which is connected to the power interface 3, and the other end is connected to the control unit and the SOC chip respectively. The PCBA board 7 also has a USB flash drive interface 4 at one end, which is connected to the SOC chip.

[0019] The control unit, acting as the system's brain, typically employs a high-performance microprocessor (such as the KF32A156). It is responsible for running the detection logic, processing data, and controlling peripheral circuits. The control unit is housed inside the casing, serving as the device's control core. It is electrically connected to the multi-functional detection interface 5 via its I / O ports, AD converter, and communication bus (such as a CAN / LIN bus module) to send control signals to the device under test and collect feedback signals.

[0020] SOC chip: Connects to the touch LCD via RGB and IIC interfaces to realize the human-computer interaction interface.

[0021] The voltage regulator module is the power source for the entire device. Its input is from an external power adapter. Its outputs include: ① providing various stable DC voltages (e.g., +5V, +3.3V, +12V) to all internal circuit boards (main control, display backlight, detection circuits, etc.); ② providing a crucial adjustable regulated output (simulating a car battery, typically 9-16V), which directly supplies power to the multi-function detection interface module 5, powering the tested components. The voltage regulator module is located inside the control unit, with its input connected to an external power source and its output providing stable and adjustable operating voltage and current to the entire device and each detection circuit.

[0022] Multifunctional Testing Interface 5: A collection of physical interfaces, customized with various types of interfaces according to the product being inspected (including a serial port for communication with the MES system, used to upload test results to the MES system for quality traceability). Multifunctional Testing Interface 5 is integrated into the side of the portable chassis and includes various types of physical interfaces (such as dedicated wire harness quick-connect interfaces and DuPont wire interfaces) for connecting the automotive electronic components being inspected.

[0023] USB Flash Drive Interface 4: An independent USB Host interface, directly connected to the SOC chip. It is the physical basis for realizing the "USB flash drive software upgrade" function, used to read upgrade files from an external USB flash drive. The control unit connects to the USB Host interface, which is exposed outside the chassis, for connecting an external USB flash drive. This allows for subsequent identification and verification of the upgrade files on the USB flash drive, guiding the system to complete firmware or application updates, thus enabling device self-upgrade and maintenance.

[0024] Wireless communication module: Wi-Fi or 4G module, used to upload test results to the MES system for quality traceability. This utility model integrates wired (serial port) and wireless (Wi-Fi) connections to upload test results and data to the factory's MES (Manufacturing Execution System) in real time, achieving networked traceability of quality data.

[0025] like Figure 4 As shown, the operation process and working principle of this utility model are described in detail as an example: 1) Operation preparation: The operator moves the equipment to the product to be inspected and connects the external power supply (12V).

[0026] 2) Select the test items: Select the test items and component types on the touch screen (e.g., select EHY->Subboard, the device will enter the electrical test interface, at which point the device will have electrical test functions for ambient lights, electric air vents and refrigerator actuators).

[0027] 3) Connect the equipment: Use the appropriate test harness to connect the corresponding interface of the equipment to the component under test.

[0028] 4) Perform the test: Click the "Start Test" button on the screen. The test control software will execute the preset test script, for example: Ambient light actuator detection: The actuator is powered on, and the supplier and software / hardware version information in the actuator is read and compared with the preset values ​​to determine if they are correct; the actuator is controlled to change color and the status is indicated by the actuator feedback to determine if it is correct.

[0029] Electric air outlet actuator detection: The actuator is powered on, and the supplier and software / hardware version information in the actuator is read and compared with the preset values. The actuator is controlled to perform self-learning and cyclic fixed-point sweeping, etc. The total stroke is automatically determined to determine whether the actuator's cyclic fixed-point sweeping is allowed to reach the required position and whether the process is stuck.

[0030] Refrigerator actuator detection: The actuator is powered on, and the supplier and software / hardware version information in the actuator is read and compared with preset values. The actuator is controlled to switch working modes, set the temperature, etc. The execution status is judged based on the working status, set temperature, and peripheral working status fed back by the actuator.

[0031] Continuity / disconnection detection (e.g., cigarette lighter / wireless charging / USB box / rear screen): The interface of the assembly under test outputs 12V voltage, and the current in the detection circuit is within the normal range to determine whether it is a continuity / short circuit / open circuit.

[0032] Results Display and Upload: After the test is completed, the screen will clearly display "Pass" or "Fail" information and specific parameters. At the same time, the test data (test items, results, values, error messages) will be automatically uploaded to the MES system for archiving via wireless module / serial port.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A portable, multifunctional electrical testing device for automotive electronic components after production line, characterized in that, The device includes a housing, a circuit mechanism, and a display screen (1). The circuit mechanism includes a PCBA board (7) and a circuit module disposed on the PCBA board (7). The PCBA board (7) is disposed in the middle of the housing, and the display screen (1) is disposed on one side of the outer side of the housing. A power interface (3) and a multi-function detection interface (5) are disposed on one side of the PCBA board (7). The circuit module includes a control unit, a SOC chip, a CAN transceiver, a LIN transceiver serial communication unit, and a current / current detection unit. The control unit is connected in parallel with the multi-function detection interface (5) to the CAN transceiver, the LIN transceiver serial communication unit, and the current / current detection unit. The control unit is connected to the SOC chip through serial communication, and the SOC chip is connected to the display screen (1) and the wireless communication module on the outer side.

2. The portable multifunctional automotive electronic component offline electrical testing device according to claim 1, characterized in that, The circuit module also includes a voltage regulator module, one end of which is connected to the power interface (3), and the other end is connected to the control unit and the SOC chip respectively.

3. A portable multifunctional automotive electronic component offline electrical testing device according to claim 1 or 2, characterized in that, The PCBA board (7) is also provided with a USB flash drive interface (4) at its end, which is connected to the SOC chip.

4. The portable multifunctional automotive electronic component offline electrical testing device according to claim 3, characterized in that, The control unit is model KF32A156, and the USB flash drive interface (4) is a USB Host interface.

5. A portable multifunctional automotive electronic component offline electrical testing device according to claim 1, characterized in that, The housing includes an upper housing (2) and a lower housing (6). A PCBA board (7) is embedded between the upper housing (2) and the lower housing (6). A clearance groove is provided on the top of the upper housing (2) and the lower housing (6) corresponding to the power interface (3) and the multi-function detection interface (5). A display screen (1) is embedded on the outside of the upper housing (2).

6. A portable multifunctional automotive electronic component offline electrical testing device according to claim 5, characterized in that, The bottom of the upper housing (2) is provided with a wire-passing groove, and the bottom of the lower housing (6) is provided with a corresponding receiving groove.

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