Portable wire harness conduction detection device

Abstract

The utility model relates to a portable wire harness conduction detection device, comprising a PCB, the PCB is provided with a plurality of light emitting diodes and resistors, the number of the light emitting diodes and the number of the resistors are the same, one light emitting diode and one resistor are respectively connected in series with a connector male head through wires, one connector male head is connected with a connector female head, and the connector female head is connected with the PCB. One connector female head is connected with a corresponding battery through a wire harness to be tested, and the number of the batteries is the same as the number of the light-emitting diodes and the number of the resistors. According to the portable wire harness conduction detection device, whether the closed circuit is conducted or not is judged according to the on-off state of the light emitting diodes, so that whether the wire harness to be detected is conducted or not is judged, and the purpose of simultaneously measuring multiple groups of wire harnesses can be achieved by simultaneously integrating multiple groups of wire loops to the connector; a large number of wire harnesses can be quickly processed, the production efficiency is remarkably improved, the cost is low, the size is small, and carrying is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection devices, and particularly relates to a portable wire harness conduction detection device. Background Art

[0002] A wire harness refers to a component formed by crimping contact terminals made of copper with wires and cables, and then molding an insulator outside or adding a metal shell, etc., and bundling the wire harness to form a connecting circuit. The wire harness industry chain includes wire and cable, connectors, processing equipment, wire harness manufacturing and downstream application industries. The wire harness is widely used in automobiles, household appliances, computers and communication equipment, various electronic instruments and meters, etc.

[0003] At present, there are two main means for wire harness detection: one is manual detection, and the other is detection through intelligent device instruments. Among them, manual wire harness detection has the following disadvantages: (1) The speed is relatively slow. In a factory that produces wire harnesses, the fast production rhythm requires an efficient detection method, and manual detection is difficult to match it; (2) There are misdetections. For example, long-term repetitive work is likely to cause fatigue of operators, thus increasing the risk of misdetection and missed detection; (3) The operability is poor. When detecting, the placement method of the wires is required to be strict, and a slight carelessness may cause false alarms; (4) The cost is higher. The errors that may occur during manual detection require additional time for correction, increasing the time cost. And intelligent wire harness detectors have a high degree of technical complexity, and operators need to undergo strict training to master their use methods proficiently, which not only increases the training cost but also limits the flexibility of the equipment; in addition, the purchase cost of intelligent wire harness detectors is much higher than that of traditional detection tools, which makes it difficult for some enterprises or organizations with limited budgets to bear. Some high-end intelligent wire harness detectors are bulky due to high integration and are not easy to carry, which limits their practicality in the wild or on-site. Summary of the Invention

[0004] The purpose of the utility model is to provide a portable wire harness conduction detection device, which can quickly process a large number of wire harnesses, significantly improve production efficiency, and has low cost, small volume and is easy to carry.

[0005] The technical solution adopted by the utility model to solve the above problems is: a portable wire harness conduction detection device, including a PCB board, on which a plurality of light-emitting diodes and resistors are provided. The number of light-emitting diodes and resistors is the same. One light-emitting diode and one resistor are respectively connected in series to a male connector through wires. One male connector is connected to a female connector, and one female connector is respectively connected to a corresponding battery through a wire harness to be detected. The number of batteries is the same as the number of light-emitting diodes and resistors.

[0006] Preferably, a light-emitting diode, a resistor, a male connector, a female connector, and a battery form a closed loop.

[0007] Preferably, both the male connector and the female connector are provided with sockets for inserting wires.

[0008] Preferably, the male connector and the female connector are detachably connected, the wire is detachably connected to the male connector, and the female connector is detachably connected to the wire harness to be tested. This ensures the convenience of disassembling, assembling, and replacing the device, enabling users to adapt different tooling according to different needs, and further improving the practicality of the device.

[0009] Preferably, the PCB board is a PCB board with a size of 100×150 mm; the PCB has a highly integrated design, saving space, improving assembly efficiency. The ultra-thin design makes the wire harness more flexible, facilitating installation and maintenance.

[0010] Preferably, the male connector is a board-end connector, and the female connector is a voltage acquisition connector.

[0011] Preferably, the number of both the light-emitting diodes and the resistors is 10.

[0012] Preferably, the battery is a low-voltage battery. The device uses a low-voltage battery as the direct power source. This design not only ensures the mobility convenience of the device but also makes the device safer to use.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] The portable wire harness conduction detection device of the present utility model determines whether the closed circuit is conducting by the on-off state of the light-emitting diode, and further determines whether the wire harness to be tested is conducting. It can integrate multiple groups of wire circuits into the connector simultaneously to achieve the purpose of measuring multiple wire harnesses at the same time; it can quickly process a large number of wire harnesses, significantly improve production efficiency, and has low cost, small volume, and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the portable wire harness conduction detection device of the present utility model.

[0016] Figure 2 is a schematic structural diagram of the disassembly of the male connector and the female connector in the portable wire harness conduction detection device of the present utility model.

[0017] Figure 3 is a schematic circuit diagram of the portable wire harness conduction detection device of the present utility model.

[0018] Wherein: 1 is a PCB board, 2 is a light-emitting diode, 3 is a resistor, 4 is a wire, 5.1 is a male connector, 5.2 is a female connector, 6 is a wire harness to be tested, and 7 is a battery. Specific embodiments

[0019] The following further describes the present utility model in detail with reference to the accompanying drawings and embodiments.

[0020] As Figures 1 - 3 shown, the structural schematic diagram of the portable wire harness continuity detection device of the present utility model, the structural schematic diagram of the disassembly of the male connector and the female connector in the portable wire harness continuity detection device, and the circuit schematic diagram of the portable wire harness continuity detection device.

[0021] A portable wire harness continuity detection device includes a PCB board 1. The PCB board 1 is a PCB board 1 with a size of 100×150 mm. Ten light-emitting diodes 2 and ten resistors 3 are provided on the PCB board 1, that is, the number of light-emitting diodes 2 and resistors 3 is the same. One light-emitting diode 2 and one resistor 3 are respectively connected in series to a male connector 5.1 via a wire 4 (qualified wire, board-end wire). A male connector 5.1 is connected to a female connector 5.2. A female connector 5.2 is respectively connected to a corresponding battery 7 via a wire harness 6 to be tested. The number of the batteries 7 is also ten, and the batteries 7 are low-voltage batteries. One light-emitting diode 2, one resistor 3, the male connector 5.1, the female connector 5.2, and one battery 7 form a closed loop. In this embodiment, the portable wire harness continuity detection device has ten closed circuits, and each circuit is independently detected, and ten wire harnesses to be tested can be tested.

[0022] Among them, the male connector 5.1 is a board-end connector, and the female connector 5.2 is a voltage acquisition connector. Both the male connector 5.1 and the female connector 5.2 are provided with sockets for inserting wires. The wire 4 is connected to the male connector 5.1 through the socket of the male connector 5.1, and the wire harness 6 to be tested is connected to the female connector 5.2 through the socket of the female connector 5.2.

[0023] In practical applications, the wire 4 is connected in series to the resistor 3 and the light-emitting diode 2. The wire harness to be tested 6 is connected to the positive and negative poles of the battery 7 respectively. The wire 4 and the wire harness to be tested 6 are connected through the male connector and the female connector 5.2 to form a loop. The portable wire harness conduction detection device determines whether the closed circuit is conducting by detecting the state of the light-emitting diode 2 in the wire harness, and then determines whether the wire harness to be tested 6 is conducting. If a group of circuits all maintain normal on-off states and the positive and negative wire sequences are also correct, then the corresponding light-emitting diodes 2 of this group on the device will light up, indicating that the test passes. On the contrary, if abnormal situations such as open circuits or incorrect wire sequences occur, the corresponding light-emitting diodes 2 will not light up, so that users can simply and intuitively judge the test results. In this embodiment, when all the wires in the wire harness are correctly connected and there are no defects, the current can smoothly pass through each wire to form a closed circuit, and ten light-emitting diodes 2 will light up simultaneously. If there are connection errors or defects in some wires, the path of the current will be blocked or interrupted, and some light-emitting diodes 2 will not light up.

[0024] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.

Claims

1. A portable wire harness conduction detection device, characterized in that: It includes a PCB board (1), on which a plurality of light-emitting diodes (2) and resistors (3) are provided. The number of light-emitting diodes (2) and resistors (3) is the same. One light-emitting diode (2) and one resistor (3) are respectively connected in series to a male connector (5.1) via a wire (4). One male connector (5.1) is connected to a female connector (5.2). One female connector (5.2) is respectively connected to a corresponding battery (7) via a harness under test (6). The number of the batteries (7) is the same as the number of the light-emitting diodes (2) and resistors (3).

2. The portable wire harness conduction detection device according to claim 1, wherein: One light-emitting diode (2), one resistor (3), the male connector (5.1), the female connector (5.2) and one battery (7) form a closed loop.

3. The portable wire harness conduction detection device according to claim 1, wherein: Both the male connector (5.1) and the female connector (5.2) are provided with sockets for plugging in wires.

4. The portable wire harness conduction detection device according to claim 1, wherein: The male connector (5.1) and the female connector (5.2) are detachably connected. The wire (4) is detachably connected to the male connector (5.1), and the female connector (5.2) is detachably connected to the harness under test (6).

5. The portable wire harness conduction detection device according to claim 1, wherein: The PCB board (1) is a PCB board (1) with a size of 100×150 mm.

6. The portable wire harness continuity detection device according to claim 1, characterized in that: The male connector (5.1) is a board-end connector, and the female connector (5.2) is a voltage acquisition connector.

7. The portable wire harness conduction detection device according to claim 1, wherein: The number of both the light-emitting diodes (2) and the resistors (3) is 10.

8. The portable wire harness conduction detection device according to claim 1, wherein: The battery (7) is a low-voltage battery.

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