Wire harness detection device

Abstract

The utility model relates to terminal wire harness detection equipment, in particular to a wire harness detection device, which is characterized in that a wire sequence detection pen, a buzzer module, a relay module, a fuse module, a display module and a wiring module are sequentially connected to form a wire sequence automatic detection mechanism, and the wire sequence automatic detection mechanism can realize automatic detection of a wire harness to be detected; the wire sequence detection pen, the buzzer module, the dial switch module, the fuse module, the display module and the wiring module are sequentially connected to form a manual wire sequence detection mechanism, a certain loop of a to-be-detected wire harness can be independently detected through the manual wire sequence detection mechanism, and the wiring module, the relay module, the fuse module and the display module are sequentially connected to form an NTC detection loop. The NTC signal acquisition module is matched with the single-chip microcomputer module to detect the NTC of the to-be-detected wire harness, and the NTC value of the wire harness can be measured besides quickly and accurately measuring various types of wire harnesses according to needs.

Description

Technical Field

[0001] This utility model relates to a testing device for terminal wire harnesses, specifically a wire harness testing apparatus. Background Technology

[0002] Currently, terminal wire harnesses or FPC flexible circuit boards are used in new energy vehicles and two-wheeled vehicles for signal acquisition and information transmission. They are all structured with a wire harness on one end and a connector on the other, or an FPC circuit board on one end and a connector on the other. In actual production, this structure has the risk of being made incorrectly. For example, if a 14-pin connector is intended to be connected, a 12-pin connector may be connected instead. If the connection is incorrect, it may lead to the product being burned out or scrapped.

[0003] Current testing methods mostly rely on wire harness color as a distinguishing standard, using wire sequence colorimeters to detect incorrect connections by identifying the colors of wire harnesses connected to different pins. However, they cannot identify wire harnesses or FPC circuit boards of the same color. Furthermore, existing wire harness measurement methods or devices can only measure the wire harness sequence at a time. When measuring FPC (flexible printed circuit boards), they cannot measure NTC (thermistor) circuits, resulting in low overall measurement efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wire harness detection device that can more accurately and quickly measure wire harnesses or FPCs, and at the same time has the function of NTC measurement.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a wire harness detection device, including a wire sequence detection pen, a buzzer module, a DIP switch module, a fuse module, a display module, a wiring module, a relay module, a microcontroller module, and an NTC signal acquisition module. The wire sequence detection pen is provided with a detection contact part, and the wiring module is a wire sequence detection circuit provided with a detection connection part. The wire sequence detection pen, buzzer module, DIP switch module, fuse module, display module, and wiring module are sequentially connected to form a manual wire sequence detection mechanism. This invention forms an automatic wire sequence detection mechanism. The relay module includes multiple relays. A microcontroller module is connected to the relay module and adjusts the wire sequence detection sequence by controlling the switching sequence of each relay. The wiring module, relay module, fuse module, and display module are sequentially connected to form an NTC detection loop. An NTC signal acquisition module is connected to the relay module and acquires data from the NTC detection loop. The NTC signal acquisition module is also connected to the microcontroller module and transmits the data from the NTC detection loop to the microcontroller module. The microcontroller module is connected to a buzzer module and controls the buzzer module based on the analysis results of the NTC detection loop data. This wire harness detection device can automatically detect wire harnesses through the automatic wire sequence detection mechanism, and can detect individual loops of the wire harness through the manual wire sequence detection mechanism. Furthermore, it can also detect the NTC value of the wire harness.

[0006] As an optional solution of this utility model, it also includes a wire sequence detection board, in which a buzzer module, a fuse module, a display module, and a wiring module are integrated. The wire sequence detection board is also provided with a wiring area for a detection pen, and the wire sequence detection pen is connected to the wiring area. Integrating the buzzer module, fuse module, display module, and wiring module into the wire sequence detection board facilitates the integration of various components and simplifies the wiring harness in the device.

[0007] As an optional solution of this utility model, the wire sequence detection pen is connected to the detection pen wiring area via a spring wire. The wire sequence detection pen is connected to the wire sequence detection board via a spring wire, which reduces the space occupied by the wire sequence detection pen when the device is not in use, and enables the device to be applicable to various types of wire harnesses.

[0008] As an optional solution of this utility model, it also includes a relay control board, on which the relay module, the microcontroller module and the NTC signal acquisition module are integrated.

[0009] As an optional solution of this utility model, the line sequence detection board is also provided with a power supply module, which is connected to the microcontroller module and supplies power to the microcontroller module.

[0010] As an optional solution to this utility model, it also includes a housing, with the line sequence detection board and relay control board disposed inside the housing, the DIP switch module and detection connection part exposed outside the housing, and the line sequence detection pen extending outside the housing. The surface of the housing corresponding to the line sequence detection board is a transparent plate, or an observation port is provided on the housing corresponding to the display module. All modules of the device are integrated into the housing, making the device convenient to carry and use.

[0011] As an optional solution of this utility model, the line sequence detection board is also provided with an NTC detection module, which is connected to the line sequence detection module and is exposed outside the housing. The NTC detection module facilitates the use of the device with external devices such as external meters.

[0012] As an optional solution of this utility model, the display module is an LED light-emitting diode.

[0013] As an optional solution of this utility model, the insurance module is a surface mount fuse.

[0014] As an optional solution of this utility model, the buzzer module is a buzzer.

[0015] Compared with the prior art, the present invention has the following advantages: The wire harness detection device of this embodiment can automatically detect the wire harness sequence through the automatic wire sequence detection mechanism, and can detect a single circuit through the manual wire sequence detection mechanism. It can also detect the NTC resistance value of the wire harness. The combination of the wire sequence detection pen and the wiring module makes the device applicable to various types of wire harnesses such as ordinary terminal wires and FPC circuit boards. The fuse module can protect the FPC circuit board components, and the buzzer module and display module can emit prompt sounds and light, which is convenient for personnel to operate and use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the wire harness measuring device.

[0018] Figure 2 This is a schematic diagram of the line sequence detection board.

[0019] Figure 3 A block diagram illustrating the connection principle of each module for wire harness measurement;

[0020] In the diagram: 1. Wiring sequence detection pen, 2. Buzzer module, 3. DIP switch module, 4. Fuse module, 5. Display module, 6. Wiring module, 7. Relay module, 8. Microcontroller module, 9. NTC signal acquisition module, 10. Wiring sequence detection board, 11. Detection pen wiring area, 12. Relay control board, 13. Housing, 14. NTC detection module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figures 1-3 A wire harness detection device includes a wire sequence detection pen 1, a buzzer module 2, a DIP switch module 3, a fuse module 4, a display module 5, a wiring module 6, a relay module 7, a microcontroller module 8, and an NTC signal acquisition module 9. The wire sequence detection pen 1 is provided with a detection contact portion, which can be connected to the wire harness end or the FPC circuit board end of the wire harness. The wiring module 6 is a wire sequence detection circuit with a detection connection portion, which can be connected to the connector end of the wire harness.

[0023] Please see Figure 3 The wire sequence detection pen 1, buzzer module 2, DIP switch module 3, fuse module 4, display module 5, and wiring module 6 are sequentially connected to form a manual wire sequence detection mechanism. Figure 3 (As shown by the dashed line). During testing, the wire sequence testing pen 1 and the wiring module 6 are connected to both ends of the wire harness under test, respectively, forming a closed loop with the manual wire sequence testing mechanism. The DIP switch module 3 is a DIP switch board; during manual wire sequence testing, simply turn on the DIP switch of the circuit to be tested.

[0024] The line sequence detection pen 1, buzzer module 2, relay module 7, fuse module 4, display module 5, and wiring module 6 are connected in sequence to form an automatic line sequence detection mechanism. Figure 3(As shown by the thick black line in the middle), relay module 7 includes multiple relays. Microcontroller module 8 is connected to relay module 7. Microcontroller module 8, according to its built-in program, adjusts the wire sequence detection sequence by controlling the switching order of each relay. During automatic wire sequence detection, all switches of DIP switch module 3 are in the off state. Wire sequence detection pen 1 and wiring module 6 are connected to both ends of the wire harness under test, forming a closed loop with the automatic wire sequence detection mechanism. At this time, microcontroller module 8 controls each relay to switch on and off in sequence, thereby automatically completing the automatic detection of different wire sequences.

[0025] The microcontroller module 8 is equipped with a low-voltage programming module, which allows the microcontroller module 8 to be programmed and adjusted to preset the line sequence measurement sequence of the automatic line sequence detection mechanism.

[0026] The wiring module 6, relay module 7, fuse module 4, and display module 5 are sequentially connected to form an NTC detection circuit. Figure 3 (As shown by the dashed and solid lines in the diagram) The NTC signal acquisition module 9 is connected to the relay module 7 and acquires data from the NTC detection circuit from the relay module 7. The NTC signal acquisition module 9 is also connected to the microcontroller module 8 and transmits data such as the voltage of the NTC detection circuit to the microcontroller module 8. The microcontroller module 8 is connected to the buzzer module 2, and the microcontroller module 8 controls the buzzer module 2 to emit a specific prompt tone based on the analysis results of the NTC detection circuit data. Specifically, when the wiring module 6 is connected to the end of the wire harness under test, the NTC signal acquisition module 9 can detect data such as the voltage of the NTC detection circuit through the relay module 7, thereby obtaining relevant data of the wire harness under test. The NTC signal acquisition module 9 sends the acquired data to the microcontroller module 8, which compares it with the built-in data and issues a corresponding command to the buzzer module 2 based on the comparison result. Personnel then judge whether the NTC of the wire harness under test meets the requirements based on the prompt tone emitted by the buzzer.

[0027] The buzzer module 2 is a buzzer, the fuse module 4 is a surface-mount fuse or other surface-mount fuse, and the display module 5 is an LED (light-emitting diode) or similar device. The buzzer module 2, fuse module 4, display module 5, and wiring module 6 are integrated on the wire sequence detection board 10. The wire sequence detection board also has a test pen wiring area 11, and the wire sequence test pen 1 is connected to the test pen wiring area 11. The wire sequence test pen 1, buzzer module 2, fuse module 4, display module 5, and wiring module 6 are connected through integrated circuits on the wire sequence detection board 10.

[0028] In a preferred embodiment, the wire sequence detection pen 1 is connected to the detection pen connection area 11 via a spring wire. When not in use, the spring wire can be retracted, saving space. When in use, the spring wire can extend so that the detection contact part of the wire sequence detection pen 1 can contact and connect with the end of the wire harness to be tested. The detection connection part is in the form of a plug, which facilitates connection with the connector of the wire harness via a plug-in method.

[0029] The relay module 7, microcontroller module 8, and NTC signal acquisition module 9 are integrated on the relay control board 12. These modules are connected via integrated circuitry on the relay control board 12. The relay control board 12 is connected to the wiring sequence detection board 10 via a wiring harness. Components on the relay control board 12 and the wiring sequence detection board 10 are also connected via this wiring harness.

[0030] The line sequence detection board 10 is also equipped with a power supply module. The power supply module can be a power module or a power interface in the form of a DC plug that is suitable for connecting to an external power source.

[0031] Please see Figure 1 and Figure 2 In a preferred embodiment, the wire harness testing device further includes a housing 13, within which the wire sequence detection board 10 and the relay control board 12 are both installed. The housing 13 has clearance holes corresponding to the DIP switch module 3 and the wiring module 6. The DIP switch module 3 is fixed to the housing 13, with the DIP switch module 3 protruding from the housing 13 for easy operation. The detection connection portion of the wiring module 6 also protrudes from the housing 13 for easy connection to the wire harness under test. To facilitate understanding the information displayed by the display module 5, the surface of the housing 13 corresponding to the wire sequence detection board 10 is transparent, or an observation port is provided on the housing 13 corresponding to the display module 5.

[0032] In a further embodiment, the wire sequence detection board 10 is also provided with an NTC detection module 14. The NTC detection module 14 is an NTC detection circuit structure suitable for use with external components. The NTC detection module 14 is exposed outside the housing 13. The NTC detection module 14 is connected to the wire sequence detection module and, through the wire sequence detection module, to the microcontroller module 8. The microcontroller module 8 can also be programmed and adjusted through the low-voltage programming module, thereby adjusting the detection quantity of the NTC detection module 14.

[0033] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wiring harness detection apparatus characterized by comprising: The circuit includes a wire sequence detection pen (1), a buzzer module (2), a DIP switch module (3), a fuse module (4), a display module (5), a wiring module (6), a relay module (7), a microcontroller module (8), and an NTC signal acquisition module (9). The wire sequence detection pen (1) is equipped with a detection contact part, and the wiring module (6) is a wire sequence detection circuit equipped with a detection connection part. The wire sequence detection pen (1), buzzer module (2), DIP switch module (3), fuse module (4), display module (5), and wiring module (6) are connected in sequence to form a manual wire sequence detection mechanism. The wire sequence detection pen (1), buzzer module (2), relay module (7), fuse module (4), display module (5), and wiring module (6) are connected in sequence to form an automatic wire sequence detection mechanism. The dynamic detection mechanism includes a relay module (7) with multiple relays. A microcontroller module (8) is connected to the relay module (7) and adjusts the detection sequence by controlling the switching sequence of each relay. The wiring module (6), relay module (7), fuse module (4), and display module (5) are connected in sequence to form an NTC detection circuit. The NTC signal acquisition module (9) is connected to the relay module (7) and acquires data from the NTC detection circuit from the relay module (7). The NTC signal acquisition module (9) is connected to the microcontroller module (8) and transmits the data from the NTC detection circuit to the microcontroller module (8). The microcontroller module (8) is connected to the buzzer module (2) and controls the buzzer module (2) based on the analysis results of the data from the NTC detection circuit.

2. A wiring harness detection device according to claim 1, characterized in that: It also includes a line sequence detection board (10), a buzzer module (2), a fuse module (4), a display module (5) and a wiring module (6) integrated on the line sequence detection board (10). The line sequence detection board (10) is also provided with a test pen wiring area (11), and the line sequence test pen (1) is connected to the test pen wiring area (11).

3. A wiring harness detection device according to claim 2, characterized in that: The line sequence detection pen (1) is connected to the detection pen wiring area (11) via a spring wire.

4. A wiring harness detection device according to claim 3, characterized in that: It also includes a relay control board (12), a relay module (7), a microcontroller module (8) and an NTC signal acquisition module (9) integrated on the relay control board (12).

5. A wiring harness detection device according to claim 4, characterized in that: The line sequence detection board (10) is also equipped with a power supply module, which is connected to the microcontroller module (8) and supplies power to the microcontroller module (8).

6. A wiring harness detection device according to claim 5, characterized in that: It also includes a housing (13), a line sequence detection board (10) and a relay control board (12) set inside the housing (13), the detection connection parts of the DIP switch module (3) and the wiring module (6) protruding from the housing (13), and the line sequence detection pen (1) extending out of the housing (13). The surface of the housing (13) corresponding to the line sequence detection board (10) is a transparent plate or an observation port is provided on the housing (13) corresponding to the display module (5).

7. A wiring harness detection device according to claim 6, characterized in that: The line sequence detection board (10) is also equipped with an NTC detection module (14), which is connected to the line sequence detection module. The NTC detection module (14) is exposed on the housing (13).

8. A wiring harness detection device according to claim 6, characterized in that: The display module (5) is an LED light-emitting diode.

9. A wiring harness detection device according to claim 6, characterized by: The fuse module (4) is a surface mount fuse.

10. The wiring harness detection apparatus of claim 6, wherein: The buzzer module is a buzzer.

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