Detection equipment for wire sequence of wire rod

Abstract

The utility model discloses a wire sequence detection device, which is characterized in that a primary side terminal and a secondary side terminal are detachably inserted into the front side of a circuit board respectively, and are arranged in rows; and the detection circuit module is integrated in the circuit board and is electrically connected with the instrument wiring terminal, the primary side terminal and the secondary side terminal. The primary side terminal and the secondary side terminal can quickly replace an adaptive terminal group according to the type of a wire harness interface, and are matched with a terminal array arranged in rows to realize multi-channel parallel detection; a detection circuit module integrated in the circuit board synchronously completes signal excitation, acquisition and logic analysis through a closed-loop signal processing mechanism, so that the detection period is remarkably shortened; the guiding structure of the terminal plugging area ensures accurate alignment of the wire harness plug, contact damage caused by misplaced plugging is avoided, and the problems that a traditional detection method is low in efficiency, high in misjudgment rate and poor in equipment reusability are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of processing and testing equipment technology, and in particular to a testing device for wire sequence. Background Technology

[0002] With the increasing integration of electronic devices, wire harnesses, as the core carrier of electrical connections, directly affect the operational stability of equipment due to their correct wiring sequence and conductivity reliability. In the industrial manufacturing sector, especially in intelligent and automated industries, the demand for testing multi-core wire harnesses is growing. Traditional wiring sequence testing methods typically employ manual point-by-point testing or fixed testing fixtures, which have the following technical drawbacks: Complex wiring and low efficiency: Existing testing equipment often uses welding or fixed wiring methods to connect test terminals, which cannot adapt to the rapid replacement needs of different wire harness specifications. Especially in batch testing scenarios, frequent changes to wire harness interfaces significantly reduce testing efficiency and pose a risk of poor contact; Insufficient layout adaptability: The terminal layout of traditional testing fixtures is fixed and cannot be dynamically adjusted according to the size or arrangement of wire harness plugs, making it difficult for the same equipment to be compatible with the testing of multiple types of wire harnesses, increasing equipment procurement costs for enterprises; High risk of misoperation: Lacking a guiding and positioning structure, operators are prone to terminal damage or accidental contact with adjacent contacts due to misalignment when inserting the wire harness, affecting testing accuracy and even causing equipment failure.

[0003] To address the above issues, some improvement solutions attempt to enhance flexibility through modular terminal design or the addition of detection circuits, but the following limitations still exist: (1) Detachable terminals lack a reliable plug-in locking mechanism, which can easily lead to increased contact resistance after long-term use; (2) The detection circuit has a single function and cannot simultaneously realize closed-loop detection of signal excitation, acquisition and logic judgment; (3) The terminal arrangement does not take into account the ergonomic requirements of wire harness plugging and unplugging, resulting in insufficient ease of operation.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a testing device for wire sequence, which solves the problem of poor user experience of the testing device for multi-core wire harnesses in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a testing device for wire sequence, comprising a circuit board, instrument terminals, primary side terminals, secondary side terminals, and a testing circuit module. The instrument terminals are fixed to the rear side of the circuit board. The primary side terminals and secondary side terminals are detachably plugged into the front side of the circuit board, and the primary side terminals and secondary side terminals are arranged in a row for detecting the continuity and sequence of the wires. The testing circuit module is integrated inside the circuit board and electrically connected to the instrument terminals, primary side terminals, and secondary side terminals.

[0007] In one embodiment of the present invention, a plurality of plug holes are arranged in a row on the circuit board, and the primary side terminal and the secondary side terminal are detachably connected to the circuit board through the plug holes.

[0008] The beneficial effects of the above embodiments are that the plug hole provides an accurate and fixed plug position for the primary side terminal and the secondary side terminal, making the installation and removal of the terminal more convenient and quick, and the operator can easily align the terminal with the plug hole for plugging and unplugging.

[0009] In one embodiment of the present invention, the primary side terminals and the secondary side terminals are symmetrically distributed on the left and right sides of the circuit board.

[0010] The beneficial effect of the above embodiment is that the primary side terminals and secondary side terminals are symmetrically distributed on the left and right sides of the circuit board, making the structure of the entire testing equipment more balanced and stable.

[0011] In one embodiment of the present invention, the detection circuit module includes: a signal generation unit connected to the primary side terminal; a signal acquisition unit connected to the secondary side terminal; and a processing unit configured to compare the acquired signal with a preset feature value to generate a detection result signal.

[0012] The beneficial effects of the above embodiments are as follows: the clear division of labor among the detection circuit modules makes the entire detection process more efficient and orderly, simplifies the detection operation process, reduces errors that may be caused by manual intervention, and greatly improves detection efficiency and accuracy.

[0013] In one embodiment of the present invention, both the primary side terminal and the secondary side terminal include a mounting base and metal terminals, and the metal terminals are arranged at equal intervals on the mounting base.

[0014] The beneficial effects of the above embodiments are that the primary side terminals and secondary side terminals adopt a structure including a mounting base and metal terminals, and the mounting base is provided with metal terminals at equal intervals, which provides clear and accurate position markings and stable connection points for wire connection.

[0015] In one embodiment of this utility model, the metal terminals of the primary side terminal and the secondary side terminal are both made of metal and coated with an anti-oxidation coating, and the mounting base is made of insulating material.

[0016] The beneficial effects of the above embodiments are as follows: the metal terminals of the primary side terminals and the secondary side terminals are made of metal and coated with an anti-oxidation coating. The metal material has good conductivity, which can ensure stable signal transmission, while the anti-oxidation coating effectively prevents oxidation and corrosion of the metal terminals during use and extends the service life of the terminals.

[0017] In one embodiment of this utility model, an indicator light is also provided on the circuit board. The indicator light is connected to the circuit on the circuit board and is used to indicate the continuity status of the wires and the wire sequence detection result.

[0018] The beneficial effects of the above embodiments are as follows: the indicator lights on the circuit board are connected to the circuit, providing operators with intuitive and convenient indications of the wire continuity status and wire sequence test results, while also reducing the labor intensity of operators and the difficulty of interpreting the test results.

[0019] In one embodiment of the present invention, the circuit board includes an elastic contact and a limiting slot. The elastic contact forms an elastic conductive connection with the root of the instrument terminal block, and the limiting slot forms a locking engagement with the side of the instrument terminal block.

[0020] The beneficial effects of the above embodiments are that the elastic contact and the root of the instrument terminal form an elastic conductive connection, which can provide a certain buffer and self-adaptive capability while ensuring a good electrical connection, reducing the impact of factors such as plugging and unplugging operations or external vibrations on the connection, and ensuring the stability of signal transmission.

[0021] As described above, the wire sequence testing device of this utility model has the following advantages: the detachable design of the primary and secondary terminals allows for quick replacement of the adapter terminal group according to the wire harness interface type, and the multi-channel parallel testing can be achieved in conjunction with the row-arranged terminal array; the detection circuit module integrated inside the circuit board completes signal excitation, acquisition and logic analysis simultaneously through a closed-loop signal processing mechanism, which significantly shortens the testing cycle; the guide structure of the terminal insertion area ensures accurate alignment of the wire harness plug and avoids contact damage caused by misalignment. Therefore, it effectively solves the problems of low efficiency, high misjudgment rate and poor equipment reusability of traditional testing methods, and is especially suitable for batch testing scenarios of multi-specification wire harnesses. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the structure of the wire sequence testing equipment provided by this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the wire sequence testing equipment provided by this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the wire sequence testing equipment provided by this utility model.

[0026] Component designation explanation

[0027] 1 Circuit board, 2 Instrument terminal block, 3 Primary side terminal, 4 Secondary side terminal, 5 Plug hole, 6 Mounting base, 7 Metal terminal block, 8 C-type bracket, 9 Screw. Detailed Implementation

[0028] This utility model provides a testing device for wire sequence. To make the purpose, technical solution and effect of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.

[0029] In the description of this utility model, it should be understood that the terms "up, down, left, right" and other indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation" and "connection" should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Please see Figures 1 to 3 This utility model provides a testing device for wire sequence, including a circuit board 1, an instrument terminal block 2, a primary side terminal block 3, a secondary side terminal block 4, and a testing circuit module. The instrument terminal block 2 is fixed to the rear side of the circuit board 1. The primary side terminal block 3 and the secondary side terminal block 4 are detachably plugged into the front side of the circuit board 1, and the primary side terminal block 3 and the secondary side terminal block 4 are arranged in a row for detecting the continuity and sequence of the wires. The testing circuit module is integrated inside the circuit board 1 and is electrically connected to the instrument terminal block 2, the primary side terminal block 3, and the secondary side terminal block 4.

[0031] The specific working principle of the wire sequence testing device in this embodiment is as follows: When the testing device is working, the operator inserts the plug end of the wire harness to be tested into the insertion area between the primary side terminal 3 and the secondary side terminal 4, so that both ends of the wire harness are electrically connected to the primary side terminal 3 and the secondary side terminal 4 respectively. After receiving the external test command through the instrument terminal 2, the testing circuit module outputs a preset excitation signal to the primary side terminal 3 through the internal signal generation unit. This signal is transmitted to the secondary side terminal 4 through the wire harness to be tested, and the feedback signal is captured in real time by the signal acquisition unit. The processing unit automatically determines whether the conduction status of each wire in the wire harness and the wire sequence arrangement meet the requirements by comparing the amplitude, phase or timing characteristics of the feedback signal with the preset logic relationship. The test result is output to the external testing equipment through the instrument terminal 2 or directly displayed by the status indicator light.

[0032] In detail, the circuit board 1 has multiple insertion holes 5 arranged in a row. The primary side terminal 3 and the secondary side terminal 4 are detachably connected to the circuit board 1 through the insertion holes 5. The multiple insertion holes 5 arranged in a row on the circuit board 1 provide accurate and fixed insertion positions for the primary side terminal 3 and the secondary side terminal 4, making the installation and removal of the terminals more convenient and quick. Operators can easily align the terminals with the insertion holes 5 for insertion and removal without a complicated positioning process, saving operation time and labor costs. At the same time, it also helps to improve the repeatability and accuracy of the terminal connection, ensuring the connection stability between the terminal and the circuit board 1 during each test, thereby improving the overall testing efficiency and reliability of the equipment. It is suitable for situations where terminals need to be frequently changed for testing different wires.

[0033] Specifically, the primary side terminals 3 and secondary side terminals 4 are symmetrically distributed on the left and right sides of the circuit board 1. This symmetrical distribution makes the entire testing equipment structure more balanced and stable. The symmetrical layout is not only more aesthetically pleasing, but also provides a more comfortable operating experience for operators when inserting or removing terminals from different angles, reducing errors or difficulties caused by inconvenient operating angles.

[0034] More specifically, both the primary side terminal 3 and the secondary side terminal 4 include a mounting base 6 and metal terminals 7. The metal terminals 7 are evenly spaced on the mounting base 6. The metal terminals 7 of both the primary side terminal 3 and the secondary side terminal 4 are made of metal and have an anti-oxidation coating on their surface. The mounting base 6 is made of insulating material.

[0035] The primary side terminal 3 and the secondary side terminal 4 adopt a structure including a mounting base 6 and metal terminals 7. The mounting base 6 has metal terminals 7 evenly spaced, providing clear and accurate position markings and stable connection points for wire connections. The metal terminals 7 of the primary side terminal 3 and the secondary side terminal 4 are made of metal and coated with an anti-oxidation coating. The metal material has good conductivity, which can ensure stable signal transmission, while the anti-oxidation coating effectively prevents oxidation and corrosion of the metal terminals 7 during use, extending the service life of the terminals.

[0036] Optionally, a desktop fixing device for fixing the circuit board 1 is also included, including a C-shaped bracket 8 and a screw 9. The screw 9 is threaded to one end of the C-shaped bracket 8. The clamping distance of the desktop fixing device can be adjusted by the screw 9, so that the circuit board 1 can be fixedly clamped on desktops of different thicknesses, and is suitable for operation and testing tables of different thicknesses.

[0037] The detection circuit module includes: a signal generation unit connected to the primary side terminal 3; a signal acquisition unit connected to the secondary side terminal 4; and a processing unit configured to compare the acquired signal with preset feature values ​​to generate a detection result signal. The clear division of labor within the detection circuit module—comprising the signal generation unit, signal acquisition unit, and processing unit—makes the entire detection process more efficient and orderly. The signal generation unit, connected to the primary side terminal 3, can stably generate a specific signal and transmit it through the wire; the signal acquisition unit, connected to the secondary side terminal 4, can accurately acquire the signal after transmission through the wire; and the processing unit generates the detection result signal by comparing the acquired signal with preset feature values, achieving automated and intelligent wire sequence detection. The detection circuit module simplifies the detection operation process, reduces errors that may be caused by manual intervention, and greatly improves detection efficiency and accuracy. It can quickly and accurately determine the continuity status and wire sequence of the wire, making it suitable for wire detection on large-scale production lines and helping to improve production efficiency and product quality.

[0038] Optionally, the circuit board 1 includes an elastic contact and a limiting slot. The elastic contact forms an elastic conductive connection with the root of the instrument terminal 2, and the limiting slot forms a locking engagement with the side of the instrument terminal 2. The elastic conductive connection between the elastic contact and the root of the instrument terminal 2 provides a certain degree of buffering and self-adaptation while ensuring a good electrical connection, reducing the impact of insertion / removal operations or external vibrations on the connection and ensuring the stability of signal transmission. The locking engagement between the limiting slot and the side of the instrument terminal 2 further enhances the connection strength between the instrument terminal 2 and the circuit board 1, preventing accidental detachment of the terminal during use, ensuring the overall structural stability of the equipment and the continuity of testing operations. Therefore, it helps improve the reliability and durability of the equipment, reduces the failure rate caused by connection problems, and is suitable for various wire sequence testing environments requiring stable and reliable operation.

[0039] In another feasible embodiment, the circuit board 1 is also equipped with an indicator light, which is connected to the circuit on the circuit board 1 to indicate the continuity status of the wires and the wire sequence test results. The indicator light on the circuit board 1 and its connection to the circuit provide operators with an intuitive and convenient indication of the wire continuity status and wire sequence test results. During the testing process, operators can quickly understand whether the wires are conducting normally and whether the wire sequence is correct by observing the on / off state or changes in the status of the indicator light, without the need for complex operations or waiting for the test results. This real-time and intuitive indication method greatly improves testing efficiency, reduces time wasted waiting for test results, and also reduces the labor intensity of operators and the difficulty of interpreting test results, making it particularly suitable for rapid on-site testing and situations where the immediacy of test results is crucial.

[0040] In summary, the wire harness sequence testing device of this invention features a detachable design for the primary side terminal 3 and the secondary side terminal 4, allowing for quick replacement of adapter terminal groups according to the wire harness interface type. Combined with a row of terminal arrays, it enables multi-channel parallel testing. The detection circuit module integrated within the circuit board 1, through a closed-loop signal processing mechanism, simultaneously completes signal excitation, acquisition, and logic analysis, significantly shortening the testing cycle. The guiding structure in the terminal insertion area ensures precise alignment of the wire harness plug, avoiding contact damage caused by misalignment. Therefore, it effectively solves the problems of low efficiency, high false positive rate, and poor equipment reusability in traditional testing methods, making it particularly suitable for batch testing scenarios involving multiple specifications of wire harnesses. Thus, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0041] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A testing device for wire sequence, characterized in that, The device includes a circuit board, instrument terminals, primary side terminals, secondary side terminals, and a detection circuit module. The instrument terminals are fixed to the rear side of the circuit board. The primary side terminals and secondary side terminals are detachably plugged into the front side of the circuit board and are arranged in a row for detecting the continuity and sequence of wires. The detection circuit module is integrated inside the circuit board and is electrically connected to the instrument terminals, primary side terminals, and secondary side terminals.

2. The testing equipment for wire sequence according to claim 1, characterized in that, The circuit board has multiple plug holes arranged in a row, and the primary side terminal and the secondary side terminal are detachably connected to the circuit board through the plug holes.

3. The testing equipment for wire sequence according to claim 2, characterized in that, The primary and secondary terminals are symmetrically distributed on the left and right sides of the circuit board.

4. The testing equipment for wire sequence according to claim 2, characterized in that, The detection circuit module includes: a signal generation unit connected to the primary side terminal; a signal acquisition unit connected to the secondary side terminal; and a processing unit configured to compare the acquired signal with a preset feature value to generate a detection result signal.

5. The testing equipment for wire sequence according to claim 4, characterized in that, Both the primary side terminal and the secondary side terminal include a mounting base and metal terminals, and the metal terminals are arranged at equal intervals on the mounting base.

6. The testing equipment for wire sequence according to claim 5, characterized in that, The metal terminals of both the primary and secondary terminals are made of metal and have an anti-oxidation coating on their surfaces. The mounting base is made of insulating material.

7. The testing equipment for wire sequence according to claim 1, characterized in that, The circuit board is also equipped with indicator lights, which are connected to the circuit on the circuit board and are used to indicate the continuity status of the wires and the wire sequence detection results.

8. The testing equipment for wire sequence according to claim 1, characterized in that, The circuit board includes an elastic contact and a limiting slot. The elastic contact forms an elastic conductive connection with the root of the instrument terminal block, and the limiting slot forms a locking engagement with the side of the instrument terminal block.

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