Wire harness fault test system and test box comprising same

Abstract

The invention relates to a wire harness fault test system and a test box comprising the system, and the system comprises a login module which enables a user to carry out the subsequent test operation through the login of an account password; the learning module is used for testing a correct product in advance, counting data of the correct product, comparing the data with a subsequent test result and testing whether the product is correct or not, and comprises a learning button, an item name, a selected item and sequentially inputting the tested items in the item name; the test module comprises a test button, a voice broadcast and indicator lamps, the test button is clicked, the correct indicator lamp is turned on if the detected product is consistent with the learning data, and the wrong indicator lamp is turned on if the detected product is different from the learning data, and the test result is synchronously broadcasted through voice; and the error checking module comprises an error checking button and an error checking point number, and the specific error quantity in the wire harness and the terminal number of the core wire with the specific error are displayed by clicking the error checking button. By adopting the technical scheme, the invention provides the wire harness fault test system which is high in detection efficiency, high in accuracy and low in labor cost.

Description

Technical Field

[0001] The invention relates to a wiring harness fault testing system and a testing box comprising the system. Background Art

[0002] The wiring harness is the overall service equipment for a certain load source group. In modern cars, the electronic control system is closely related to the wiring harness. In order to make the wiring harness used in the vehicle meet the quality requirements of the vehicle for a long time, the wiring harness needs to be tested for continuity before leaving the factory. Only the wiring harness that meets the test requirements can leave the factory. Therefore, the requirements for automotive wiring harnesses are very strict, including their electrical performance, waterproofness, heat resistance and low temperature resistance, etc., which are higher than the requirements for general wiring harnesses, especially those involving safety.

[0003] Traditional wire continuity monitoring is achieved by monitoring its on-resistance, which requires the use of an analog-to-digital (A / D) conversion module. If the wiring harness contains 16 core wires, 16 analog-to-digital (A / D) conversion modules are required. Since the A / D conversion process takes a long time, intermittent circuit breaks at the microsecond level are prone to loss of monitoring signals, resulting in low test accuracy.

[0004] In addition, the pins in the aviation connector (the connectors at both ends of the wiring harness) are densely arranged and are generally numbered in small white letters. However, after the wiring harness is used for a long time, these numbers are easily worn out and difficult to distinguish, which makes it difficult for workers to measure and leads to problems such as mismeasurement. When further inspection results are inconsistent in the later stage, rework is caused, which further increases the time and labor costs and delays the repair cycle. Therefore, it is necessary to explore a new solution to replace the above solution to improve the efficiency and accuracy of wiring harness detection and reduce labor costs. Summary of the invention

[0005] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a wiring harness fault testing system, which has high detection efficiency, high accuracy and low labor cost.

[0006] The technical solution of the present invention is: a wiring harness fault testing system, comprising: Login module, users can log in with their account and password before they can perform subsequent testing operations; The learning module tests a correct product in advance and takes its data into account to facilitate comparison with subsequent test results to test whether the product is correct. It includes a learning button, project name, and selection project. Enter the test items in the project name in sequence, and select the corresponding test items in the selection project during testing. The test module includes a test button, voice broadcast and indicator light. Click the test button and if the product is consistent with the learning data, the correct indicator light will light up. If they are different, the wrong indicator light will light up and the voice will broadcast the test result synchronously. The error checking module includes an error checking button and the number of error checking points. Clicking the error checking button will display the specific error quantity in the wiring harness and the terminal number of the core wire with the specific error. A display module includes a touch screen for displaying a login page and a test page, and a user can manually input on the screen; The power supply module is used to supply power to the display screen, and comprises a power socket, a control switch and a circuit board assembly. The display screen is electrically connected to the circuit board assembly.

[0007] Further setup: The learning steps in the learning module are as follows: S1, take the correct product and click the test button. S2, click the learning button, wait for a few seconds, and the learning is successful; S3, click the test button again. If it shows that the test is correct, it means the learning is successful. If it shows that the test is wrong, click the learning button again to re-write the data.

[0008] Further setting: the test module also includes a clear status button for clearing the current test result.

[0009] Another technical solution of the present invention: a circuit board assembly, a power interface and a plurality of wiring harness interfaces are provided in the lower shell, a display screen is provided in the upper shell, a control switch is provided on the power interface, a plurality of jacks are provided on one side of each wiring harness interface, and a plurality of pins are provided on the other side, a plurality of connecting terminals are provided on the circuit board assembly, and each connecting terminal is connected to each jack in a one-to-one correspondence, and the display screen is electrically connected to the circuit board assembly for displaying an operation page.

[0010] It is further configured that the circuit board assembly includes an electrically connected circuit board I and a circuit board II, each connecting terminal is arranged on the circuit board I, and the circuit board II is connected to the display screen.

[0011] Further configuration: a mounting platform and a mounting cavity are provided in the lower shell, each harness connector and the power interface are arranged on the mounting platform, and a mounting plate is provided at the corresponding wiring harness interface position, a cover body is movably provided on the mounting plate, and the shape of the cover body is adapted to the wiring harness interface.

[0012] The effect of the present invention is to correctly detect wiring harness products, and the features are: 1. Automatic learning, adapting to the diversity of wiring harnesses on the market, and improving product efficiency 2. Through voice and indicator light dual prompts, employees can test errors caused by fatigue 3. Multiple project storage, can be called at any time, convenient for subsequent selection 4. There are multiple wiring harness interfaces, which can detect multiple products at the same time 5. One-click inspection of wiring harness to reduce wiring harness inspection time 6. One-click error checking, quickly lock the wiring harness error position, convenient for maintenance 7. Touch screen, faster operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a system operation page of a specific embodiment of the present invention; Figure 2 A schematic diagram of selecting items for a specific embodiment of the present invention; Figure 3 It is a schematic diagram of the main page of the system of a specific embodiment of the present invention; Figure 4 A schematic diagram of a login page of a specific embodiment of the present invention; Figure 5 It is a schematic diagram of a specific embodiment of the present invention when an error page has an error; Figure 6 This is a schematic diagram of a specific embodiment of the present invention when all error checking pages are correct; Figure 7 It is a schematic diagram of a test box according to a specific embodiment of the present invention; Figure 8 It is a schematic diagram of the lower shell of a specific embodiment of the present invention; Fig. 9 It is a schematic diagram of an upper shell of a specific embodiment of the present invention; Fig.10 It is a schematic diagram of a wiring harness interface according to a specific embodiment of the present invention; Fig.11 It is a schematic diagram of the other side of the wiring harness interface of a specific embodiment of the present invention; Fig.12 It is a schematic diagram of a cover body according to a specific embodiment of the present invention. Implementation

[0014] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0015] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0016] In addition, in the present invention, the descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0017] In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0018] like Figure 1-10 As shown, a wiring harness fault testing system includes: Login module, users can perform subsequent test operations only after logging in with their account and password; after entering the password, press the Enter key to close the keyboard, the password will be valid, otherwise it will always show that the password is wrong. Account and password login is highly secure. After successful login, click the Return to Test Page button to jump to the test page for subsequent operations; The learning module tests a correct product in advance and takes its data into account to facilitate comparison with subsequent test results to test whether the product is correct. It includes a learning button, project name, and selection project. Enter the test items in the project name in sequence, and select the corresponding test items in the selection project during testing. The test module includes a test button, voice broadcast and indicator light. Click the test button and if the product is consistent with the learning data, the correct indicator light will light up. If they are different, the wrong indicator light will light up and the voice will broadcast the test result synchronously. The error checking module includes an error checking button and the number of error checking points. Click the error checking button to display the specific error quantity in the wiring harness and the terminal number of the specific erroneous core wire. Click the error checking button to enter the error checking page to view the corresponding error position. The position light is on. Click Return to Test Homepage to jump to the test page, or click Next Page to jump to another error checking page.

[0019] A display module includes a touch screen for displaying a login page and a test page, and a user can manually input on the screen; The power supply module is used to supply power to the display screen, and comprises a power socket, a control switch and a circuit board assembly. The display screen is electrically connected to the circuit board assembly.

[0020] Self-learning function: Simply click the learning button on the sample to test subsequent products that are the same as the sample, improving product efficiency. The screen display will also broadcast voice reports simultaneously, with correct reports indicating the wiring harness is correct and incorrect reports indicating the wiring harness is incorrect. This double protection prevents the flow of incorrect wiring harnesses. Click test to perform multiple wiring harness tests to confirm whether the wiring harness is correct. It has an error checking function. Click error checking. If there is an error, the wrong terminal number will be displayed, allowing for quick and easy correction of the incorrect wiring harness.

[0021] Further setup: The learning steps in the learning module are as follows: S1, take the correct product, click the test button, wait a few seconds, and the test error will be displayed; S2, click the learning button, wait for a few seconds, and the learning is successful; S3, click the test button again. If the test is correct, it means the learning is successful. If the test is wrong, click the learning button again to re-write the data. Writing is only valid in the test error state. The display can only write data once within the specified time, such as one minute. It cannot learn quickly and continuously. If the power is turned off immediately after learning, the data will not be saved. After the learning is completed, the data is written correctly. Turning off the display will not affect the internal data. The next time you log in, you can still perform the same wiring harness test on the successfully learned project.

[0022] Further setting: the test module also includes a clear status button for clearing the current test result.

[0023] Another technical solution of the present invention: comprising a split upper shell 1 and a lower shell 2, wherein the lower shell 2 is provided with a circuit board assembly, a power interface 3 and a plurality of wiring harness interfaces 4, the upper shell 1 is provided with a display screen 11, the power interface 3 is provided with a control switch 31, each wiring harness interface 4 is provided with a plurality of jacks 41 on one side and a plurality of pins 42 on the other side, the circuit board assembly is provided with a plurality of connection terminals, each connection terminal is connected to each jack in a one-to-one correspondence, and the display screen 11 is electrically connected to the circuit board assembly for displaying an operation page. The structure is simple and the operation is convenient. When testing, the plug on the wiring harness to be tested is inserted into the wiring harness interface, and the wiring harness can be tested. The test results are displayed on the display screen 11 for easy viewing. The plug and the wiring harness interface are matched, and plugging and unplugging are convenient, and plugging and unplugging are convenient and quick.

[0024] Further configuration: the circuit board assembly includes an electrically connected circuit board I and a circuit board II, each connection terminal is arranged on the circuit board I, and the circuit board II is connected to the display screen. The connection is convenient, and it is convenient to connect the wiring harness interface and the display screen.

[0025] Further configuration: the lower shell 2 is provided with a mounting platform 21 and a mounting cavity 22, each harness connector 4 and the power interface 3 are arranged on the mounting platform 21, and a mounting piece 5 is provided at the position corresponding to the harness interface 4, and a cover 51 is movably provided on the mounting piece 5, and the shape of the cover 51 is adapted to the harness interface 4. The cover 51 is closed when the harness interface 4 is not in use to prevent dust from entering the harness interface and affecting the conductivity of the pin, and can be opened when in use.

[0026] The effect of the present invention is to correctly detect wiring harness products, and the features are: 1. Automatic learning, adapting to the diversity of wiring harnesses on the market, and improving product efficiency 2. Through voice and indicator light dual prompts, employees can test errors caused by fatigue 3. Multiple project storage, can be called at any time, convenient for subsequent selection 4. There are multiple wiring harness interfaces, which can detect multiple products at the same time 5. One-click inspection of wiring harness to reduce wiring harness inspection time 6. One-click error checking, quickly lock the wiring harness error position, convenient for maintenance 7. Touch screen, faster operation.

Claims

1. A wiring harness fault testing system, characterized in that: include, Login module, users can log in with their account and password before they can perform subsequent testing operations; The learning module tests a correct product in advance and takes its data into account to facilitate comparison with subsequent test results to test whether the product is correct. It includes a learning button, project name, and selection project. Enter the test items in the project name in sequence, and select the corresponding test items in the selection project during testing. The test module includes a test button, voice broadcast and indicator light. Click the test button and if the product is consistent with the learning data, the correct indicator light will light up. If they are different, the wrong indicator light will light up and the voice will broadcast the test result synchronously. The error checking module includes an error checking button and the number of error checking points. Clicking the error checking button will display the specific error quantity in the wiring harness and the terminal number of the core wire with the specific error. A display module includes a touch screen for displaying a login page and a test page, and a user can manually input on the screen; The power supply module is used to supply power to the display screen, and comprises a power socket, a control switch and a circuit board assembly. The display screen is electrically connected to the circuit board assembly.

2. The wiring harness fault testing system according to claim 1, characterized in that: The learning steps in the learning module are as follows: S1, take the correct product and click the test button. S2, click the learning button, wait for a few seconds, and the learning is successful; S3, click the test button again. If it shows that the test is correct, it means the learning is successful. If it shows that the test is wrong, click the learning button again to re-write the data.

3. The wiring harness fault testing system according to claim 1 or 2, characterized in that: The test module also includes a clear status button for clearing the current test result.

4. A wiring harness test box comprising the system according to any one of claims 1 to 3, characterized in that: A circuit board assembly, a power interface and several wiring harness interfaces are provided in the lower shell, a display screen is provided in the upper shell, a control switch is provided on the power interface, several jacks are provided on one side of each wiring harness interface, and several pins are provided on the other side, several connecting terminals are provided on the circuit board assembly, and each connecting terminal is connected to each jack in a one-to-one correspondence, and the display screen is electrically connected to the circuit board assembly for displaying the operation page.

5. The wiring harness test box according to claim 4, characterized in that: The circuit board assembly comprises an electrically connected circuit board I and a circuit board II, each connecting terminal is arranged on the circuit board I, and the circuit board II is connected to the display screen.

6. The wiring harness test box according to claim 5, characterized in that: A mounting platform and a mounting cavity are provided in the lower shell, each harness connector and a power interface are arranged on the mounting platform, and a mounting plate is provided at the corresponding wiring harness interface position, a cover body is movably provided on the mounting plate, and the shape of the cover body is adapted to the wiring harness interface.

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