Electrical redundancy line detector and electrical redundancy detection method

Abstract

The invention relates to a detector for an electrical redundant circuit, and the detector comprises a fixed pedestal, the bottom of the fixed pedestal is provided with a supporting seat, the top of the fixed pedestal is provided with a wire harness observation table, an upper cover assembly is arranged above the wire harness observation table, and the bottom of the wire harness observation table is provided with a laser projection part for irradiating a wire harness on the surface of the wire harness observation table. According to the electrical redundant circuit detector, through the combination of a modular adjustment structure and an intelligent optical detection system, the accuracy and operation convenience of wire harness detection are remarkably improved. A hydraulic rod drives the upper cover assembly to ascend and descend through a connecting frame, and precise closing of a clamping plate and a shading cover is ensured by combining double limiting of a first supporting rod and a second supporting rod, so that a wire harness is stably fixed between a wire harness top groove and a wire harness bottom groove. The closed detection environment effectively isolates external light interference, and ideal conditions are provided for subsequent optical detection.

Description

Technical Field

[0001] This invention relates to the field of electrical circuit testing technology, specifically to a tester and method for detecting electrical redundancy in electrical circuits. Background Technology

[0002] In the field of electrical engineering, wire harnesses serve as the core carrier for power transmission and signal control, and the redundancy detection of their internal circuitry directly affects the safety and reliability of the system. Traditional testing methods mainly rely on manual visual inspection or multimeter spot testing, which suffers from low efficiency and a high risk of missing detections. Especially for complex wire harness systems, manual disassembly and testing is not only time-consuming and labor-intensive, but may also cause secondary damage due to improper operation.

[0003] In existing technologies, some testing equipment uses X-ray or ultrasonic flaw detection technology, which can achieve non-contact testing, but suffers from problems such as high equipment cost and radiation risks. Meanwhile, optical imaging-based testing devices often suffer from blurred images due to ambient light interference, making it difficult to clearly identify the arrangement of metal wires inside the wire harness. Furthermore, conventional fixture structures are fixed and cannot adapt to the testing requirements of wire harnesses of different specifications, thus limiting their applicability. Therefore, this paper provides a testing instrument and method for electrical redundancy circuits to solve the aforementioned problems. Summary of the Invention

[0004] To address the problem of blurred imaging caused by ambient light interference, making it difficult to clearly identify the arrangement of metal wires inside the wiring harness, this invention provides an electrical redundancy detection instrument and an electrical redundancy detection method to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An electrical redundancy circuit detector includes a fixed base, a support base installed at the bottom of the fixed base, a wire harness observation platform installed at the top of the fixed base, a top cover assembly provided above the wire harness observation platform, and a laser projector for irradiating the wire harness on the surface of the wire harness observation platform installed at the bottom of the wire harness observation platform.

[0006] Furthermore, a first support rod is installed on the top of the fixed base, the upper cover assembly is slidably connected to the first support rod, and a second support rod is installed on the first support rod.

[0007] Furthermore, a connecting frame is installed at the top of the hydraulic rod output rod, and the connecting frame is connected to the top of the two second support rods.

[0008] Furthermore, the support base includes a longitudinal base, a transverse base slidably connected to the top of the longitudinal base, a connecting base slidably connected to the transverse base, and the top of the connecting base being fixed to the bottom of the fixed base.

[0009] Furthermore, the wire harness observation platform includes a main panel, on which multiple wire harness bottom grooves for placing wire harnesses are provided, and connecting posts are also installed on the main panel. The main panel is fixed to the bottom of the fixed base through the main panel. The main panel is made of transparent acrylic material.

[0010] Furthermore, a clamp is installed on the top of the main panel, and the main panel is engaged with the upper cover assembly through the clamp.

[0011] Furthermore, the upper cover assembly includes an upper connecting plate, a light-shielding cover is installed at the bottom of the upper connecting plate, a light-refracting plate is provided on the inner wall of the light-shielding cover, and a camera for probing the inside of the wire harness is also installed on the inner wall of the upper connecting plate.

[0012] Furthermore, the light-shielding cover has a wire harness top groove that mates with the wire harness bottom groove.

[0013] Furthermore, the laser projection component includes a servo motor, the output shaft of which is connected to a screw via a coupling, a threaded block is threaded onto the screw, a connecting rod is mounted on the threaded block, and multiple laser lights are mounted on the connecting rod. The laser projection component also includes a limiting rod, which is installed at the bottom of the wire harness observation platform, and a limiting slider is slidably connected to the limiting rod. The limiting slider is connected to the connecting rod.

[0014] The testing method for the aforementioned electrical redundancy circuit detector includes the following steps: S1: Equipment Positioning and Adjustment First, the support base and the fixed base are securely connected to form the basic support structure of the equipment. Then, according to the actual position of the wire harness to be tested, the detection position of the connecting base and the fixed base is precisely adjusted by adjusting the longitudinal and transverse bases to ensure that the equipment and the wire harness are in the best alignment state, thus preparing for subsequent testing work.

[0015] S2: Wire Harness Placement and Fixing Place the wire harness to be tested smoothly on the adjusted wire harness observation platform, ensuring that the wire harness is completely embedded in the bottom groove of the wire harness. Then, start the hydraulic rod, and drive the upper cover assembly to descend smoothly through the linkage of the connecting frame and the second support rod. During this process, the first support rod always provides stable limit support to ensure that the vertical movement trajectory of the upper cover assembly is accurate.

[0016] S3: Environmental sealing test When the top cover assembly descends to the position where the clamp and the light shield are fully engaged, the wire harness is firmly fixed in the positioning space formed by the top groove and bottom groove of the wire harness. At this time, the detection area forms a completely light-proof sealed environment, creating ideal conditions for subsequent optical detection, while ensuring that the detection process is not affected by external light.

[0017] S4: Optical inspection started Turn on the laser light and let the laser beam pass through the main panel and shine on the wire harness inside the light shield. The light passing through the internal structure of the wire harness will be reflected multiple times by the light-refracting plate, clearly showing the distribution of the metal wires inside the wire harness. At this time, the camera can capture a detailed image of the internal structure of the wire harness in real time.

[0018] S5: Scan Detection Execution The servo motor is started to drive the screw to rotate. Under the coordinated action of the limit rod, limit slider and connecting rod, the threaded block drives the laser lamp to move smoothly along the predetermined track to realize full-length scanning detection of the wire harness. This dynamic scanning method can obtain more complete and clearer distribution information of the metal wires inside the wire harness.

[0019] S6: Detection Completed and Reset After the test is completed, the laser light is turned off to stop the light source output. Then, the hydraulic rod is started again to smoothly lift the upper cover assembly to the initial position. At this time, the wire harness that has been tested can be safely removed. The whole operation process is simple and quick. All parts of the equipment can be automatically reset to prepare for the next test.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. This electrical redundancy circuit tester significantly improves the accuracy and ease of operation of wire harness testing through the combination of a modular adjustment structure and an intelligent optical inspection system. The support base and fixed base form a stable foundation, and the multi-directional adjustment functions of the longitudinal and transverse seats allow for flexible adaptation to wire harness testing needs in different positions and orientations. The collaborative design of the wire harness observation platform and the upper cover assembly achieves efficient clamping and a light-shielding environment: the hydraulic rod drives the upper cover assembly to rise and fall through the connecting frame, and the double limiting of the first and second support rods ensures precise closure of the clamping plate and the light-shielding cover, stably fixing the wire harness between the top and bottom slots. The enclosed testing environment effectively isolates external light interference, providing ideal conditions for subsequent optical inspection.

[0021] 2. This device innovatively employs laser transmission and reflection technology to achieve non-destructive testing, significantly improving the efficiency of redundant circuit identification. The laser beam penetrates the wire harness and is reflected multiple times by a refracting plate, clearly revealing the distribution of internal metal wires. This, combined with a high-precision observation camera, captures abnormal wiring in real time. A servo motor-driven scanning mechanism, through the transmission of a screw and threaded block, moves the laser beam directionally along a limiting rod, achieving full-length, blind-spot-free scanning of the wire harness and avoiding omissions caused by manual inspection. After testing, the hydraulic rod can quickly reset the top cover assembly, enabling one-click removal and placement of the wire harness. The overall design organically combines mechanical stability, intelligent optical detection, and ease of operation, making it suitable for rapid repair and quality assessment of complex electrical systems, effectively reducing labor costs and the risk of misjudgment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the invention from a first-person perspective; Figure 2 This is a perspective view of the support base in this invention; Figure 3 This is a perspective view of the connection between the wire harness observation platform and the upper cover assembly in this invention; Figure 4 This is a perspective view of the light-shielding cover in this invention; Figure 5 This is a three-dimensional view of the laser projection component in this invention.

[0024] The meanings of the reference numerals in the attached diagram are as follows: 1. Support base; 11. Longitudinal base; 12. Transverse base; 13. Connecting base; 2. Fixed base; 21. First support rod; 22. Second support rod; 3. Wire harness observation platform; 31. Main panel; 32. Wire harness bottom groove; 33. Clamping plate; 34. Connecting column; 4. Hydraulic rod; 41. Connecting frame; 5. Top cover assembly; 51. Upper connecting plate; 52. Wire harness top groove; 53. Light shield; 54. Light refracting plate; 55. Camera; 6. Laser projection component; 61. Servo motor; 62. Screw; 63. Threaded block; 64. Limiting rod; 65. Connecting rod; 66. Limiting slider; 67. Laser light. Detailed Implementation

[0025] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Reference Figure 1-5 An electrical redundancy circuit detector includes a fixed base 2, a support base 1 installed at the bottom of the fixed base 2, a wire harness observation platform 3 installed at the top of the fixed base 2, a top cover assembly 5 provided above the wire harness observation platform 3, and a laser projection component 6 for irradiating the wire harness on the surface of the wire harness observation platform 3 installed at the bottom of the wire harness observation platform 3.

[0027] In this embodiment, a first support rod 21 is installed on the top of the fixed base 2, the upper cover assembly 5 is slidably connected to the first support rod 21, a second support rod 22 is installed on the first support rod 21, and a connecting frame 41 is installed on the top of the output rod of the hydraulic rod 4, and the connecting frame 41 is connected to the top of the two second support rods 22.

[0028] In this embodiment, the support base 1 includes a longitudinal base 11, a transverse base 12 is slidably connected to the top of the longitudinal base 11, a connecting base 13 is slidably connected to the transverse base 12, and the top of the connecting base 13 is fixed to the bottom of the fixed base 2.

[0029] Firstly, the support base 1 and the fixed base 2 serve as the bottom support. The longitudinal base 11 and the transverse base 12 can be adjusted according to the position of the wire harness, thereby adjusting the detection position of the connecting base 13 and the fixed base 2.

[0030] In this embodiment, the wire harness observation platform 3 includes a main panel 31, on which a plurality of wire harness bottom grooves 32 for placing wire harnesses are provided. A connecting post 34 is also installed on the main panel 31. The main panel 31 is fixed to the bottom of the fixed base 2. The main panel 31 is made of transparent acrylic material. A clamping plate 33 is installed on the top of the main panel 31. The main panel 31 is engaged with the upper cover assembly 5 through the clamping plate 33.

[0031] In this embodiment, the upper cover assembly 5 includes an upper connecting plate 51, a light shield 53 is installed at the bottom of the upper connecting plate 51, a light refracting plate 54 is provided on the inner wall of the light shield 53, a camera 55 for probing the inside of the wire harness is also installed on the inner wall of the upper connecting plate 51, and a wire harness top groove 52 that cooperates with the wire harness bottom groove 32 is opened on the light shield 53.

[0032] The main panel 31 on the wire harness observation platform 3 serves as the operating surface. The wire harness is placed on the bottom groove 32, and then the hydraulic rod 4 is activated. The hydraulic rod 4, through the connecting frame 41 and the second support rod 22, drives the upper cover assembly 5 to rise or fall. During this process, the first support rod 21 acts as a limit, improving the stability of the upper cover assembly 5's lifting and lowering operation. When the upper cover assembly 5 descends until the clamping plate 33 and the light-shielding cover 53 are fully engaged, the wire harness top groove 52 and the wire harness bottom groove 32 position the wire harness, and the upper cover assembly 5 is in a light-proof state. At this time, the laser light 67 is turned on... Light passes through the main panel 31 and shines onto the wiring harness inside the light shield 53. The light passing through the wiring harness is reflected multiple times by the light refraction plate 54, illuminating the metal wires inside the wiring harness. At this time, the observation camera 55 can observe where the redundant wiring harness is, and start the servo motor 61. The servo motor 61 drives the screw 62 to rotate. Under the limitation of the limit rod 64, the limit slider 66, and the connecting rod 65, the threaded block 63 can drive the laser light 67 on the connecting rod 65 to move continuously along the direction of the wiring harness and illuminate it, so that the metal wiring inside the entire wiring harness can be observed more clearly.

[0033] In this embodiment, the laser projection component 6 includes a servo motor 61, the output shaft of which is connected to a screw 62 via a coupling, a threaded block 63 is threaded onto the screw 62, a connecting rod 65 is mounted on the threaded block 63, and multiple laser lights 67 are mounted on the connecting rod 65. The laser projection component 6 also includes a limiting rod 64, which is mounted on the bottom of the wire harness observation platform 3. A limiting slider 66 is slidably connected to the limiting rod 64, and the limiting slider 66 is connected to the connecting rod 65.

[0034] After the operation is completed, simply start the hydraulic rod 4 to lift the upper cover assembly 5, turn off the laser light 67, and you can remove the wire harness from the wire harness bottom groove 32.

[0035] Working principle: When in use, the device is first supported by the support base 1 and the fixed base 2. The longitudinal base 11 and the transverse base 12 can be adjusted according to the position of the wire harness, thereby adjusting the detection position of the connecting base 13 and the fixed base 2. After adjustment, the main panel 31 on the wire harness observation platform 3 becomes the operating surface. Place the wire harness on the wire harness bottom groove 32, and then start the hydraulic rod 4. The hydraulic rod 4 will drive the upper cover assembly 5 to rise or fall through the connecting frame 41 and the second support rod 22. During this process, the first support rod 21 plays a limiting role, improving the stability of the upper cover assembly 5 in lifting and lowering. It has good operability and high applicability. When the top cover assembly 5 descends until the clamping plate 33 and the light shield 53 are fully engaged, the wire harness top groove 52 and the wire harness bottom groove 32 position the wire harness. The top cover assembly 5 is in a light-proof state. At this time, the laser light 67 is turned on to shine light through the main panel 31 into the wire harness inside the light shield 53. The light passing through the wire harness will be reflected multiple times by the light refraction plate 54 to illuminate the metal wires inside the wire harness. At this time, the observation camera 55 can observe where the redundant wire harness is, and the servo motor 61 is started. The servo motor 61 will drive the screw 62 to rotate. Under the limit of the limit rod 64, the limit slider 66, and the connecting rod 65, the threaded block 63 can drive the laser light 67 on the connecting rod 65 to move continuously along the direction of the wire harness to illuminate it. The metal wires inside the entire wire harness can be observed more clearly. After the operation is completed, simply start the hydraulic rod 4 to lift the upper cover assembly 5, turn off the laser light 67, and you can remove the wire harness from the wire harness bottom groove 32.

[0036] The method of using this device includes the following steps: S1: Equipment Positioning and Adjustment First, the support base 1 and the fixed base 2 are securely connected to form the basic support structure of the equipment. Then, according to the actual position of the wire harness to be tested, the detection position of the connecting base 13 and the fixed base 2 is precisely adjusted by adjusting the longitudinal base 11 and the transverse base 12 to ensure that the equipment and the wire harness are in the best alignment state, thus preparing for subsequent testing work.

[0037] S2: Wire Harness Placement and Fixing Place the wire harness to be tested smoothly on the adjusted wire harness observation platform 3, ensuring that the wire harness is completely embedded in the wire harness bottom groove 32. Then, start the hydraulic rod 4, and drive the upper cover assembly 5 to descend smoothly through the linkage of the connecting frame 41 and the second support rod 22. During this process, the first support rod 21 always provides stable limit support to ensure that the vertical movement trajectory of the upper cover assembly 5 is accurate.

[0038] S3: Environmental sealing test When the top cover assembly 5 descends to the position where the clamping plate 33 and the light shield 53 are fully engaged, the wire harness is firmly fixed in the positioning space formed by the top groove 52 and the bottom groove 32 of the wire harness. At this time, the detection area forms a completely light-proof sealed environment, which creates ideal conditions for subsequent optical detection and ensures that the detection process is not affected by external light.

[0039] S4: Optical inspection started Turn on the laser light 67 so that the laser beam passes through the main panel 31 and shines on the wire harness inside the light shield 53. The light passing through the internal structure of the wire harness will be reflected multiple times by the light refraction plate 54, clearly showing the distribution of the metal wires inside the wire harness. At this time, the detailed structural image inside the wire harness can be captured in real time by the observation camera 55.

[0040] S5: Scan Detection Execution The servo motor 61 is started to drive the screw 62 to rotate. Under the coordinated action of the limit rod 64, the limit slider 66 and the connecting rod 65, the threaded block 63 drives the laser lamp 67 to move smoothly along the predetermined track, realizing full-length scanning detection of the wire harness. This dynamic scanning method can obtain more complete and clearer distribution information of the metal wires inside the wire harness.

[0041] S6: Detection Completed and Reset After the test is completed, the laser lamp 67 is turned off to stop the light source output. Then, the hydraulic rod 4 is started again to smoothly lift the upper cover assembly 5 to the initial position. At this time, the wire harness that has been tested can be safely removed. The whole operation process is simple and quick. All parts of the equipment can be automatically reset to prepare for the next test.

[0042] This testing system, through modular design and intelligent control, enables rapid and accurate detection of the internal structure of electrical wiring harnesses. It is particularly suitable for quality control and fault diagnosis of electrical pipelines in prefabricated buildings, and has significant advantages such as ease of operation, high detection accuracy, and wide applicability.

[0043] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A detector for electrical redundancy circuits, comprising a fixed base (2), characterized in that: The bottom of the fixed base (2) is equipped with a support base (1), the top of the fixed base (2) is equipped with a wire harness observation platform (3), the top cover assembly (5) is provided above the wire harness observation platform (3), and the bottom of the wire harness observation platform (3) is equipped with a laser projection component (6) for irradiating the wire harness on the surface of the wire harness observation platform (3).

2. The electrical redundancy circuit detector according to claim 1, characterized in that: The top of the fixed base (2) is equipped with a first support rod (21), the upper cover assembly (5) is slidably connected to the first support rod (21), and a second support rod (22) is installed on the first support rod (21).

3. The electrical redundancy circuit detector according to claim 2, characterized in that: A connecting frame (41) is installed at the top of the output rod of the hydraulic rod (4), and the connecting frame (41) is connected to the top of the two second support rods (22).

4. The electrical redundancy circuit detector according to claim 3, characterized in that: The support base (1) includes a longitudinal base (11), a transverse base (12) is slidably connected to the top of the longitudinal base (11), a connecting base (13) is slidably connected to the transverse base (12), and the top of the connecting base (13) is fixed to the bottom of the fixed base (2).

5. The electrical redundancy circuit detector according to claim 1, characterized in that: The wire harness observation platform (3) includes a main panel (31), on which a plurality of wire harness bottom grooves (32) for placing wire harnesses are provided. A connecting column (34) is also installed on the main panel (31). The main panel (31) is fixed to the bottom of the fixed base (2) through the main panel (31). The main panel (31) is made of transparent acrylic material.

6. The electrical redundancy circuit detector according to claim 5, characterized in that: A clamp (33) is installed on the top of the main panel (31), and the main panel (31) is engaged with the upper cover assembly (5) through the clamp (33).

7. The electrical redundancy circuit detector according to claim 5, characterized in that: The upper cover assembly (5) includes an upper connecting plate (51), a light shield (53) is installed at the bottom of the upper connecting plate (51), a light refracting plate (54) is provided on the inner wall of the light shield (53), and a camera (55) for probing the inside of the wire harness is also installed on the inner wall of the upper connecting plate (51).

8. The electrical redundancy circuit detector according to claim 7, characterized in that: The light-shielding cover (53) has a wire harness top groove (52) that matches the wire harness bottom groove (32).

9. The electrical redundancy circuit detector according to claim 1, characterized in that: The laser projection component (6) includes a servo motor (61), the output shaft of which is connected to a screw (62) via a coupling. A threaded block (63) is threaded onto the screw (62), and a connecting rod (65) is mounted on the threaded block (63). Multiple laser lamps (67) are mounted on the connecting rod (65). The laser projection component (6) also includes a limiting rod (64), which is mounted on the bottom of the wire harness observation platform (3). A limiting slider (66) is slidably connected to the limiting rod (64), and the limiting slider (66) is connected to the connecting rod (65).

10. The electrical redundancy detection method of the electrical redundancy circuit detector according to claims 1-9, comprising the following steps: S1: First, the support base (1) and the fixed base (2) are firmly connected to form the basic support structure of the equipment. Then, according to the actual position of the wire harness to be tested, the detection position of the connecting base (13) and the fixed base (2) is precisely adjusted by adjusting the longitudinal base (11) and the transverse base (12) to ensure that the equipment and the wire harness are in the best alignment state and to prepare for subsequent testing work. S2: Place the wire harness to be tested smoothly on the adjusted wire harness observation platform (3) to ensure that the wire harness is completely embedded in the wire harness bottom groove (32). Then start the hydraulic rod (4). Through the linkage of the connecting frame (41) and the second support rod (22), the upper cover assembly (5) is driven to descend smoothly. During this process, the first support rod (21) always provides stable limit support to ensure that the vertical movement trajectory of the upper cover assembly (5) is accurate. S3: When the upper cover assembly (5) descends to the position where the clamp (33) and the light shield (53) are fully engaged, the wire harness is firmly fixed in the positioning space formed by the wire harness top groove (52) and the wire harness bottom groove (32). At this time, the detection area forms a completely light-proof sealed environment, which creates ideal conditions for subsequent optical detection and ensures that the detection process is not affected by external light. S4: Turn on the laser light (67) and let the laser beam pass through the main panel (31) and shine on the wire harness inside the light shield (53). The light passing through the internal structure of the wire harness will be clearly displayed under the multiple reflections of the light refraction plate (54). At this time, the detailed structural image inside the wire harness can be captured in real time by observing the camera (55). S5: Start the servo motor (61) to drive the screw (62) to rotate. Under the coordinated action of the limit rod (64), the limit slider (66) and the connecting rod (65), the threaded block (63) drives the laser lamp (67) to move smoothly along the predetermined track to achieve full-length scanning detection of the wire harness. This dynamic scanning method can obtain more complete and clearer distribution information of the metal wires inside the wire harness. S6: After the test is completed, first turn off the laser lamp (67) to stop the light source output, and then start the hydraulic rod (4) again to lift the upper cover assembly (5) smoothly to the initial position. At this time, the wire harness that has been tested can be safely taken out. The whole operation process is simple and quick. All parts of the equipment can be automatically reset to prepare for the next test.

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