Cable core breakage detection device and detection method

Abstract

The invention discloses a cable broken core detection device and a detection method, and relates to the technical field of cable broken core detection, and the cable broken core detection device comprises a shell I hinged with a shell II, the bottom of the shell II is provided with an arched groove and a semicircular groove, the groove is internally provided with a belt driven by a micro motor, and a rail groove I in a symmetrical extension edge is slidably connected with a clamping piece I and a clamping piece II; an adjustable clamping piece III and an adjustable clamping piece IV are arranged between the clamping piece I and the clamping piece II; the detection assembly is fixed on the belt, the outer layer of a probe of the detection assembly is sequentially coated with a silica gel damping layer, a permalloy layer and a copper net layer, the problems of cable bending false alarm and electromagnetic interference false triggering are solved, and the detection precision of complex working conditions is improved.

Description

Technical Field

[0001] This invention relates to the field of cable core breakage detection technology, and in particular to a cable core breakage detection device and detection method. Background Technology

[0002] Traditional rigid clamps cannot accommodate cable deformation caused by insulation aging (such as ellipticization of round cables and warping of flat cables). Physical gaps during detection lead to signal distortion. When the cable is bent, the inner insulation layer accumulates and thickens, increasing the distance between the probe and the battery core. The induction intensity decreases inversely proportional to the square. Ferromagnetic impurities generated by cable aging cause magnetic field distortion. High-frequency harmonics trigger false alarms after being amplified three times. These defects result in insufficient reliability of existing equipment under complex operating conditions. Summary of the Invention

[0003] This application provides a cable core breakage detection device and method, which solves the technical problems of detection failure caused by cable deformation, false alarms caused by bending, and false triggering by electromagnetic interference in the prior art. It achieves the technical effect of high-precision core breakage detection under complex working conditions by providing an adaptive clamping structure, dynamic probe compensation, and layered electromagnetic shielding structure.

[0004] This application provides a cable core breakage detection device and method, including a second outer shell hinged to the bottom of a first outer shell, the second outer shell having an arched groove at its bottom, and a semi-circular groove in the inner cross-section of the arched groove; the second outer shell has symmetrically provided extended edges, and the second outer shell and the extended edges are integrally formed; the extended edges have a pair of track grooves, and clamps one and two are slidably connected in the track grooves, respectively, with clamps three and four arranged between clamps one and clamps two; a detection component is provided in the semi-circular groove, a micro motor is installed along one arc end in the semi-circular groove, and a belt is installed in the semi-circular groove, the belt... Driven by a micro motor, the detection component is mounted on a belt and moves along the arc of the arched groove by the rotation of the belt. The detection component includes a probe, with a silicone damping layer, a permalloy layer and a copper mesh layer layer layered on the outer end of the probe. The probe is an inductive sensor and has an amplification unit consisting of three transistors connected in series and a signal processing unit to amplify the probe's sensing signal. The signal processing unit determines the inductance strength at the detection position. When the inductance strength is lower than a certain preset value, the signal processing unit determines that the detection position is a short core. To improve the compatibility of round and flat cables, a pair of bolts are symmetrically provided on the upper side of the outer shell 2. Bolt 1 is internally threaded to a rotating sleeve 1. One end of the rotating sleeve 1 is rotatably connected to a matching piece 1. The matching piece 1 is slidably connected to bolt 1. One end of the matching piece 1 is provided with bolt 2. Clamping piece 1 and clamping piece 2 are slidably connected in the two track grooves 1 respectively. Clamping piece 1 and clamping piece 2 have deep holes that mate with bolt 2 at the ends of bolt 1. The ends of the deep holes are rotatably connected to rotating sleeve 2. Rotating sleeve 2 is threadedly connected to bolt 2. Clamping piece 1, clamping piece 2, clamping piece 3 and clamping piece 4 are all rectangular structures. While improving the compatibility of round and flat cables, it also improves the ease of use of the device. The lower side of clamp one and the upper side of clamp two are both provided with working grooves. Bolt three is fixed in the working grooves. Two pairs of rotating parts are threaded on the two bolts three. The rotating parts are rotatably connected in the locking part. One end of the locking part is provided with a semi-transparent groove, so that part of the outer cross section of the rotating part is exposed. The outer cross section of the rotating part is provided with rough texture. An elastic element is provided between the upper and lower pairs of locking components, and a limiting element is fixed at one end of the elastic element; a pair of locking components are slidably connected to a clamping element three, and another pair is slidably connected to a clamping element four; The clamps three and four are provided with teeth on one end face, and the limiting member is provided with teeth at one end that mesh with the teeth of the clamps three and four; a plurality of balls two are rotatably connected to the opposite faces of the clamps three and four, and balls one is rotatably connected to the opposite faces of the two clamps one and two. To provide multi-angle detection and length compensation for the detection component, the detection component also includes a fixed base, a track component, four bolts, a micro motor, a rotating sleeve, a limiting seat, and auxiliary components. The fixed base is fixed to the belt, and one side of the fixed base is symmetrically provided with track components. The track components have two track grooves corresponding to the curvature of the track components. The fixed base is symmetrically provided with vertical plates, and the two vertical plates are rotatably connected by four bolts. One of the vertical plates is equipped with a micro motor, and the output end of the micro motor is fixedly connected to four bolts. A rotating sleeve is threaded onto four bolts. One end of the rotating sleeve is fixedly connected to a telescopic rod, and one end of the telescopic rod is fixed to a reinforcing rod; auxiliary rods are symmetrically provided on both sides of the reinforcing rod; the auxiliary rods are slidably connected to the track groove. To improve the mobility and structural stability of the detection component, a micro motor is fixedly connected to one end of the limiting seat, an auxiliary rotating component is fixed to the output end of the micro motor, and multiple reinforcing rods are fixed on the limiting seat, with the other end of the reinforcing rods slidably connected to the auxiliary component. To improve multi-angle detection by the probe, one end of the auxiliary component has a movable hole that is threadedly connected to the auxiliary rotating component and a sliding hole that cooperates with the reinforcing rod. The other end of the auxiliary component is fixed with a micro motor three, which is rotatably connected to the probe rod. The micro motor three is equipped with a micro motor three at its upper end, and the output end of the micro motor three controls the rotation of the probe rod. The probe is equipped with the probe at the other end of the probe rod.

[0005] Work steps: S1: Rotate the rotating sleeve 2 at the ends of clamp 1 and clamp 2 to make bolt 2 screw in or out in the deep hole, drive clamp 1 and clamp 2 to slide along track groove 1, initially adapt to the cable width; rotate the rotating part to move on bolt 3, drive the locking part to adjust the lateral position of clamp 3 or clamp 4; pull the elastic part outward to make the limiting part disengage from the tooth engagement, manually slide clamp 3 or clamp 4 to fit the cable surface, release the elastic part to lock the teeth; S2: Place the cable near the arched groove. Guide the cable by the rolling of ball bearings 1 and 2 in clamps 3 and 4, fixing it in the center. Inspect the cable using a probe. If the cable insulation layer ages and generates Fe3O4 impurities, the permalloy layer absorbs the low-frequency magnetic interference from the Fe3O4 generated during insulation aging; the copper mesh layer reflects high-frequency harmonics; and the silicone damping layer absorbs mechanical vibration noise. When the cable insulation layer ages and bends, proceed to step S3. When inspecting flat cables, if the insulation layer of the flat cable ages, proceed to step S4. S3: Start the micro motor drive belt to move the detection component along the semi-circular groove arc; detect the cable through the probe: micro motor one drives bolt four to rotate, pushing the rotating sleeve three to move axially; telescopic rod linkage limit seat makes the auxiliary roller slide along track groove two, automatically compensating for arc changes; the distance between the probe and the cable core remains constant to avoid false alarms due to signal attenuation caused by insulation layer accumulation, and the same area is repeatedly detected 3 times to eliminate instantaneous interference; S4: When inspecting flat cables, if the insulation layer of the flat cable shows signs of aging, the second micro motor drives the auxiliary rotating component to rotate, pushing the auxiliary component to slide along the reinforcing rod; the third micro motor drives the probe to rotate, making the probe perpendicular to the warped surface, and the same area is inspected three times to eliminate momentary interference; S5: After the test is completed, reverse the micro motor to return the test component to the initial position, release the clamps of clamp 1, clamp 2, clamp 3, and clamp 4 on the cable, and take out the cable.

[0006] Through the coordinated adjustment of clamps one, two, three, and four, as well as ball beads one and two, the device can adapt to the aging and deformation of the insulation layer of round or flat cables. The probe maintains a constant distance from the battery core when the cable is bent by the curvature compensation of the track component and the length adjustment of the telescopic rod, thus solving the false alarm problem caused by the inverse ratio of the induction intensity to the square of the distance. The permalloy layer of the probe absorbs low-frequency magnetic interference, the copper mesh layer reflects high-frequency harmonics, and the silicone damping layer absorbs mechanical vibration noise, blocking the magnetic field distortion caused by Fe3O4 impurities generated by the aging of the insulation layer. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural schematic diagram of a cable core breakage detection device and detection method according to the present invention; Figure 2 This is a front view of a cable core breakage detection device and method according to the present invention; Figure 3 This is a partial cross-sectional view of the outer casing of the cable core breakage detection device and detection method of the present invention. Figure 4 This is a partial cross-sectional view of the clamp of the cable core breakage detection device and detection method of the present invention; Figure 5 This is a three-dimensional schematic diagram of the detection component structure of a cable core breakage detection device and detection method according to the present invention; Figure 6 This is a schematic diagram of the three positions of the rotating sleeve in the cable core breakage detection device and detection method of the present invention; Figure 7 This is a probe structure diagram of a cable core breakage detection device and detection method according to the present invention; Figure 8 This is a schematic diagram of a circular cable being clamped in accordance with the present invention, which describes a cable core breakage detection device and method. Figure 9 This is a schematic diagram of a flat cable clamping device and method for detecting cable core breakage according to the present invention. Figure 10 This is a schematic diagram of a cable core breakage detection device and method according to the present invention for detecting bent cables; Figure 11 This is a schematic diagram of the detection of warped edges in a flat cable using a cable core breakage detection device and method according to the present invention.

[0008] In the picture: 100. Outer shell one; 110. Outer shell two; 111. Arched groove; 112. Extended edge; 113. Track groove one; 114. Bolt one; 115. Rotating sleeve one; 116. Matching piece one; 117. Bolt two; 120. Clamping piece one; 121. Clamping piece two; 122. Ball bearing one; 123. Rotating sleeve two; 124. Bolt three; 125. Positioning piece; 126. Adapter; 127. Limiting piece; 128. Elastic piece; 129. Functional groove; 130. Clamping piece three; 131. Clamping piece four; 132. Ball bearing two; 140. Semicircular groove; 141. Miniature motor; 142. Belt; 200. Detection component; 201. Fixing base; 202. Vertical plate; 203. Bolt four; 204. Micro motor one; 205. Rotating sleeve three; 206. Telescopic rod; 210. Track component; 211. Track groove two; 212. Track groove three; 220. Limiting seat; 221. Auxiliary roller; 222. Micro motor two; 224. Reinforcing rod; 225. Auxiliary component; 226. Auxiliary rotating component; 227. Micro motor three; 230. Probe; 231. Probe rod; 240. Silicone damping layer; 241. Permalloy layer; 242. Copper mesh layer. Detailed Implementation

[0009] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0010] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0011] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0012] Example 1: As Figures 1 to 11As shown, this application discloses a cable core breakage detection device and method, comprising a second outer shell 110 hinged to the bottom of a first outer shell 100, wherein the bottom of the second outer shell 110 has an arched groove 111, and the inner cross section of the arched groove 111 has a semi-circular groove 140; the second outer shell 110 is symmetrically provided with an extension edge 112, and the second outer shell 110 and the extension edge 112 are integrally formed; the extension edge 112 has a pair of track grooves 113, and a clamp 120 and a clamp 2121 are slidably connected in the track grooves 113 respectively, and a clamp 30 and a clamp 4131 are provided between the clamp 120 and the clamp 2121; a detection component 200 is provided in the semi-circular groove 140, and a micro motor 141 is installed along one arc end in the semi-circular groove 140. A belt 142 is installed inside the device, and the belt 142 is driven by a micro motor 141. The detection component 200 is mounted on the belt 142 and moves along the arc of the arched groove 111 by the rotation of the belt 142. The detection component 200 includes a probe 230. The outer end of the probe 230 is provided with a silicone damping layer 240, a permalloy layer 241, and a copper mesh layer 242 in succession. The probe 230 is an inductive sensor. The probe 230 is provided with an amplification unit consisting of three transistors connected in series and a signal processing unit, which is used to amplify the sensing signal of the probe 230. The signal processing unit determines the inductance strength at the detection position. When the inductance strength is lower than a certain preset value, the signal processing unit determines that the detection position is a short core.

[0013] To improve the compatibility with round and flat cables, a pair of bolts 114 are symmetrically provided on the upper side of the outer casing 110. A rotating sleeve 115 is internally threaded to the bolts 114. A matching sleeve 116 is rotatably connected to one end of the rotating sleeve 115. The matching sleeve 116 is slidably connected to the bolts 114. A bolt 217 is provided at one end of the matching sleeve 116. Clamping member 120 and clamping member 221 are slidably connected in the two track grooves 113 respectively. A deep hole that mates with bolt 217 is opened on the end of clamping member 120 and clamping member 221 facing the bolts 114. A rotating sleeve 223 is rotatably connected to the end of the deep hole. The rotating sleeve 223 is threadedly connected to bolt 217. Clamping member 120 and clamping member 221, clamping member 330 and clamping member 4131 are all rectangular structures.

[0014] While improving the compatibility of round and flat cables, the device also improves ease of use. The lower side of clamp 120 and the upper side of clamp 21 are both provided with function grooves 129. Bolt 3 124 is fixed in the function groove 129. Two pairs of rotating parts 126 are threaded onto the two bolts 3 124. The rotating parts 126 are rotatably connected in the locking part 125. One end of the locking part 125 is provided with a semi-transparent groove, so that part of the outer cross section of the rotating parts 126 is exposed. The outer cross section of the rotating parts 126 is provided with rough texture.

[0015] An elastic element 128 is provided between the upper and lower pairs of locking members 125, and a limiting element 127 is fixed at one end of the elastic element 128; a pair of locking members 125 are slidably connected to a clamping member three 130, and another pair is slidably connected to a clamping member four 131.

[0016] One end face of clamp 3 130 and clamp 4 131 is provided with teeth, and one end of the limiting member 127 is provided with teeth that mesh with the teeth of clamp 3 130 and clamp 4 131; multiple ball beads 2 132 are rotatably connected to the opposite surfaces of clamp 3 130 and clamp 4 131, and ball beads 122 are rotatably connected to the opposite surfaces of clamp 1 120 and clamp 2 121.

[0017] To provide multi-angle detection and length compensation for the detection component 200, the detection component 200 also includes a fixed base 201, a track component 210, a bolt four 203, a micro motor one 204, a rotating sleeve three 205, a limiting seat 220, and an auxiliary component 225. The fixed base 201 is fixed on the belt 142. The fixed base 201 has track components 210 symmetrically arranged on one side. The track components 210 have track grooves two 211 and three 212 corresponding to the curvature of the track components 210. The fixed base 201 has vertical plates 202 symmetrically arranged on the top and bottom. The bolt four 203 is rotatably connected between the two vertical plates 202. A micro motor one 204 is installed on the top of one of the vertical plates 202. The output end of the micro motor one 204 is fixedly connected to the bolt four 203. The rotating sleeve three 205 is threadedly connected to the bolt four 203.

[0018] One end of the rotating sleeve 205 is fixedly connected to a telescopic rod 206, and one end of the telescopic rod 206 is fixed to a reinforcing rod 224; auxiliary rods 221 are symmetrically provided on both sides of the reinforcing rod 224; the auxiliary rods 221 are slidably connected to the track groove 211.

[0019] To improve the mobility and structural stability of the detection component 200, a micro motor 222 is fixedly connected to one end of the limiting seat 220, an auxiliary rotating component 226 is fixed to the output end of the micro motor 222, and a plurality of reinforcing rods 224 are fixed on the limiting seat 220, with the other end of the reinforcing rods 224 slidably connected to the auxiliary component 225.

[0020] To improve the multi-angle detection of the probe 230, one end of the auxiliary component 225 has a movable hole that is threadedly connected to the auxiliary rotating component 226 and a sliding hole that cooperates with the reinforcing rod 224. The other end of the auxiliary component 225 is fixed with a micro motor 227, which is rotatably connected to the probe rod 231. The upper end of the micro motor 227 is provided with a micro motor 227, and the output end of the micro motor 227 controls the rotation of the probe rod 231. The other end of the probe rod 231 is provided with the probe 230.

[0021] Work steps: S1: Rotate the rotating sleeve 123 at the end of clamp 120 and clamp 2121 to make bolt 217 screw in or out in the deep hole, drive clamp 120 and clamp 2121 to slide along track groove 113 to initially adapt to the cable width; rotate rotating part 126 to move on bolt 3124, drive locking part 125 to adjust the lateral position of clamp 3130 or clamp 4131; pull elastic part 128 outward to disengage limiting part 127 from tooth engagement, manually slide clamp 3130 or clamp 4131 to fit the cable surface, and release elastic part 128 to lock the teeth.

[0022] S2: Place the cable near the arched groove 111. Guide the cable by the rolling of the ball bearings 122 of clamp 120 and clamp 2121, and the ball bearings 132 of clamp 3 and clamp 4131, so that the cable is centered and fixed. Detect the cable through the probe 230. If the cable insulation layer ages and generates Fe3O4 impurities, the permalloy layer 241 absorbs the low-frequency magnetic interference of Fe3O4 generated by the insulation layer aging; the copper mesh layer 242 reflects high-frequency harmonics; and the silicone damping layer 240 absorbs mechanical vibration noise. When the cable insulation layer ages and bends, proceed to step S3. When testing flat cables, if the insulation layer of the flat cable ages, proceed to step S4.

[0023] S3: Start the micro motor 141 to drive the belt 142, which drives the detection component 200 to move in an arc along the semi-circular groove 140; the cable is detected by the probe 230: the micro motor 204 drives the bolt 203 to rotate, which pushes the rotating sleeve 205 to move axially; the telescopic rod 206 is linked with the limit seat 220, which makes the auxiliary rod 221 slide along the track groove 211 to automatically compensate for the arc change; the distance between the probe 230 and the cable core is kept constant to avoid false alarms due to signal attenuation caused by insulation layer accumulation. The same area is repeatedly detected 3 times to eliminate instantaneous interference.

[0024] S4: When inspecting flat cables, if the insulation layer of the flat cable shows signs of aging, micro motor 222 drives the auxiliary rotating part 226 to rotate, pushing the auxiliary part 225 to slide along the reinforcing rod 224; micro motor 327 drives the probe rod 231 to rotate, making the probe 230 perpendicular to the warped surface, and repeating the inspection 3 times in the same area to eliminate momentary interference.

[0025] S5: After the test is completed, the reverse micro motor 141 returns the test component 200 to the initial position, releases the clamps 120, 2121, 330 and 4131 from the cable, and removes the cable.

[0026] Specific implementation: First, rotate the rotating sleeve 123 within the bolt 117, causing the clamp 120 to move and adjust within the track groove 113; rotate the rotating part 126 to move it on the bolt 3 124 (relative to the clamp 120), thereby adjusting the position of the clamp 3 130 or clamp 4 131 on the clamp 120; pull the elastic element 128, causing the limiting element 127 to no longer engage with the teeth of the clamp 3 130 or clamp 4 131, and manually adjust the clamp 3 130 or clamp 4 131. After adjusting the position of clamp 131, release the elastic element 128 so that the limiting element 127 engages with the teeth of clamp 130 or clamp 131; thereby adapting to the shape and size of the cable; through the ball beads 132 and 122 respectively set on clamp 130 and clamp 131, clamp 120 and clamp 2121, the device can be inserted into the cable and can also move, which is convenient for the detection of probe 230. Through the above adjustment structure, it can adapt to the aging and deformation of the cable insulation layer.

[0027] When the cable insulation layer ages and bends, ( Figure 10 At point A, the probe 230 coil needs to cut the magnetic field lines perpendicularly to maximize the induced electromotive force. Effective magnetic flux when tilted The descent and cable bending caused the probe's 230° axis to form an angle with the cable normal. To improve detection accuracy and prevent false alarms, a micro motor 204 controls the rotation of bolt 203, causing rotating sleeve 205 to move on bolt 203. The movement of rotating sleeve 205 moves the limiting seat 220. The limiting seat 220 is engaged in the track groove 211 of track component 210 by auxiliary rod 221. Through the extension and retraction of telescopic rod 206, the limiting seat 220 moves along the arc of track groove 211, compensating for the length loss due to angle adjustment. This ensures that the distance between the probe 230 and the cable is relatively consistent in the initial position. Multiple tests are performed to reduce the false alarm rate. After a successful test, the next area of ​​the flat cable is tested. Probe 230 is an inductive sensor. When the cable bends, the inner side is compressed, and the insulation layer thickens, increasing the distance between probe 230 and the cable core. The sensing intensity is inversely proportional to the square of the distance between probe 230 and the cable core, which may cause probe 230 to falsely detect a broken core.

[0028] When inspecting flat cables, if the insulation layer of the flat cable ages, causing one side to warp, when inspecting the flat cable on the bridge side, the relative position of clamp 120 and outer shell 110 is adjusted so that clamp 120 in the same direction as the warped side can adapt to its angle. First, the limiting seat 220 is initially rotated on the track 210 by rotating sleeve 3 205. Then, the probe 231 is driven to rotate by micro motor 3 227 so that the probe 230 is perpendicular to the flat cable. Multiple tests are performed to reduce the false alarm rate. After the test is successful, the next area of ​​the flat cable is then inspected.

[0029] When ferromagnetic impurities (such as Fe3O4) are generated during the aging process of cable insulation, the cause is the incomplete decomposition of antioxidants (such as iron-containing compounds) or sulfurizing agents (such as Fe2O3) added during cable production, and the presence of iron ions (Fe2O3) in the underground environment (such as underground pipe networks). 2 ⁺ / Fe 3 ⁺) Through insulation cracks, when the cable is locally overheated (such as by overload current), the embrittled area pyrolyzes, resulting in carbon enrichment and the formation of a loose, porous carbonized layer. This causes sulfur in the carbonized layer (from the insulation material or the environment) to react with iron ions, ultimately generating magnetic Fe3O4 (magnetite) through a sulfidation-oxidation chain reaction and the synergistic effect of a metal catalyst. This leads to magnetic field distortion, and the received signal from probe 230 is superimposed with high-frequency harmonics. After amplification by the three-stage amplification unit, a false alarm is triggered. The inner 0.3mm permalloy layer 241 outside the probe 230 coil is used to absorb low-frequency magnetic interference; the outer 0.2mm copper mesh layer 242 reflects high-frequency electromagnetic waves, which can shield external magnetic field distortion and block the high-frequency harmonics of Fe3O4 impurities. In addition, the silicone damping layer 240 (1mm thick) can absorb magnetic field jitter caused by mechanical vibration, thereby reducing the false alarm rate.

[0030] Beneficial effects: By adjusting clamps 130 and 131, clamps 120 and 121, the cable width is initially adapted. The toothed engagement of elastic element 128 and limiting element 127 provides quick locking. When the insulation layer of a round cable ages and becomes elliptical, or when the edge of a flat cable curls, the ball guide keeps the cable stably centered, providing a physical reference for the dynamic compensation of probe 230. If the clamping is unstable and causes the cable to shift, the arc compensation of micro motor 204 will fail. The rolling design of ball 122 and ball 2132 ensures that the cable is automatically centered during clamping. This effect directly serves dynamic compensation. Micro motor 204 drives bolt 203 to rotate, pushing rotating sleeve 205 to move axially, which in turn links telescopic rod 206 and limit seat 220, causing auxiliary roller 221 to slide along track groove 211, automatically compensating for changes in cable bending curvature. Micro motor 227 drives probe 231 to rotate, keeping it perpendicular to the surface when the flat cable edge is warped, ensuring the system keeps the cable position fixed. Curvature compensation is essential to accurately maintain the distance between probe 230 and the battery cell. The compensation mechanism, in turn, eliminates the impact of insulation deformation on clamping. When bent, the inner insulation layer thickens and accumulates. The probe 230 automatically approaches the battery cell to avoid false alarms of a broken cell. The permalloy layer 241 absorbs the distorted magnetic field through its high permeability to address low-frequency magnetic interference from Fe3O4 generated by insulation aging (such as iron ions from underground pipe networks). The copper mesh layer 242 reflects high-frequency harmonics, and the silicone damping layer 240 absorbs equipment vibration noise. Although dynamic compensation maintains the optimal position of the probe 230, Fe3O4 impurities generated by cable aging can still cause magnetic field distortion. Without a shielding layer, the three-stage amplification unit will amplify the distorted signal, leading to false alarms. The silicone damping layer 240 directly compensates for the physical limitations of mechanical compensation. Even if the micro motor drives slight vibrations, it can absorb jitter noise and ensure signal purity.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cable core breakage detection device, comprising a first outer casing (100) with a second outer casing (110) hinged to its bottom, characterized in that, The bottom of the outer shell (110) has an arched groove (111), and the inner cross section of the arched groove (111) has a semi-circular groove (140); the outer shell (110) is symmetrically provided with an extension edge (112); the extension edge (112) has a pair of track grooves (113), and clamps (120) and (121) are slidably connected in the track grooves (113), and clamps (30) and (4) are provided between clamps (120) and clamps (121); a detection component (200) is provided in the semi-circular groove (140), and a component is installed along one end of the arc in the semi-circular groove (140). A micro motor (141) is installed in a semi-circular groove (140) with a belt (142) installed inside. The belt (142) is driven by the micro motor (141). The detection component (200) is located on the belt (142). The detection component (200) moves along the arc of the arched groove (111) by the rotation of the belt (142). The detection component (200) includes a probe (230). The outer end of the probe (230) is provided with a silicone damping layer (240), a permalloy layer (241) and a copper mesh layer (242) layer by layer. The probe (230) is provided with an amplification unit composed of three transistors connected in series and a signal processing unit.

2. The cable core breakage detection device as described in claim 1, characterized in that, The upper end of the outer shell 2 (110) is symmetrically provided with a pair of bolts 1 (114). Bolt 1 (114) is internally threaded with a rotating sleeve 1 (115). One end of the rotating sleeve 1 (115) is rotatably connected with a matching 1 (116). Matching 1 (116) is slidably connected with bolt 1 (114). One end of matching 1 (116) is provided with bolt 2 (117). Clamp 1 (120) and clamp 2 (121) are slidably connected in the two track grooves 1 (113). Clamp 1 (120) and clamp 2 (121) are respectively opened with deep holes that cooperate with bolt 2 (117) at one end of bolt 1 (114). The port of the deep hole is rotatably connected with rotating sleeve 2 (123). Rotating sleeve 2 (123) is threadedly connected with bolt 2 (117). Clamp 1 (120) and clamp 2 (121), clamp 3 (130) and clamp 4 (131) are all rectangular structures.

3. The cable core breakage detection device as described in claim 2, characterized in that, The lower side of clamp one (120) and the upper side of clamp two (121) are both provided with function grooves (129). Bolt three (124) is fixed in the function groove (129). Two pairs of rotating parts (126) are threaded on the two bolt three (124). The rotating parts (126) are rotatably connected in the locking part (125). One end of the locking part (125) is provided with a semi-transparent groove, so that part of the outer section of the rotating parts (126) is exposed. The outer section of the rotating parts (126) is provided with rough texture.

4. The cable core breakage detection device as described in claim 3, characterized in that, An elastic element (128) is provided between the upper and lower pairs of the locking elements (125), and a limiting element (127) is fixed at one end of the elastic element (128); a pair of the locking elements (125) are slidably connected to a clamping element three (130), and another pair are slidably connected to a clamping element four (131).

5. The cable core breakage detection device as described in claim 4, characterized in that, One end face of clamp three (130) and clamp four (131) is provided with teeth, and one end of the limiting member (127) is provided with teeth that mesh with the teeth of clamp three (130) and clamp four (131); multiple ball beads two (132) are rotatably connected to the opposite surfaces of clamp three (130) and clamp four (131), and ball beads one (122) are rotatably connected to the opposite surfaces of clamp one (120) and clamp two (121).

6. The cable core breakage detection device as described in claim 1, characterized in that, The detection component (200) also includes a fixed seat (201), a track component (210), four bolts (203), a micro motor (204), a rotating sleeve (205), a limiting seat (220), and auxiliary components (225); the fixed seat (201) is fixed on the belt (142), and the fixed seat (201) is symmetrically provided with track components (210) on one side, and the track components (210) have track grooves (211) and track grooves (212) corresponding to the curvature of the track components (210); the fixed seat (201) is symmetrically provided with upright plates (202) on the top and bottom; four bolts (203) are rotatably connected between the two upright plates (202); a micro motor (204) is installed on the top of one of the upright plates (202), and the output end of the micro motor (204) is fixedly connected to the four bolts (203); the rotating sleeve (205) is threadedly connected to the four bolts (203).

7. The cable core breakage detection device as described in claim 6, characterized in that, One end of the rotating sleeve (205) is fixedly connected to a telescopic rod (206), and one end of the telescopic rod (206) is fixed to a reinforcing rod (224); auxiliary rods (221) are symmetrically provided on both sides of the reinforcing rod (224); the auxiliary rods (221) are slidably connected in the track groove (211).

8. The cable core breakage detection device as described in claim 7, characterized in that, One end of the limiting seat (220) is fixedly connected to a micro motor (222), and an auxiliary rotating part (226) is fixed to the output end of the micro motor (222). Multiple reinforcing rods (224) are fixed on the limiting seat (220), and the other end of the reinforcing rods (224) is slidably connected to the auxiliary part (225).

9. The cable core breakage detection device as described in claim 8, characterized in that, One end of the auxiliary component (225) has a movable hole that is threadedly connected to the auxiliary rotating component (226) and a sliding hole that cooperates with the reinforcing rod (224). The other end of the auxiliary component (225) is fixed with a micro motor three (227), and the micro motor three (227) is rotatably connected to the probe rod (231). The micro motor three (227) is provided at the upper end of the micro motor three (227), and the output end of the micro motor three (227) controls the rotation of the probe rod (231). The probe (230) is provided at the other end of the probe rod (231).

10. A method for detecting cable core breakage, characterized in that, S1: Rotate the rotating sleeve 2 (123) at the end of clamp 1 (120) and clamp 2 (121) to make bolt 2 (117) screw in / out in the deep hole, drive clamp 1 (120) and clamp 2 (121) to slide along track groove 1 (113) to initially adapt to the cable width; rotate the rotating part (126) to move on bolt 3 (124), drive the locking part (125) to adjust the lateral position of clamp 3 (130) or clamp 4 (131); pull the elastic part (128) outward to make the limiting part (127) disengage from the tooth engagement, manually slide clamp 3 (130) or clamp 4 (131) to fit the cable surface, release the elastic part (128) to lock the teeth; S2: Place the cable near the arched groove (111), and guide it by the rolling of the ball bearings (122) of clamp one (120) and clamp two (121) and the ball bearings (132) of clamp three (130) and clamp four (131) to fix the cable in the center. Detect the cable through the probe (230). If the cable insulation layer ages and generates Fe3O4 impurities, the permalloy layer (241) absorbs the low-frequency magnetic interference of Fe3O4 generated by the insulation layer aging; the copper mesh layer (242) reflects high-frequency harmonics; and the silicone damping layer (240) absorbs mechanical vibration noise. When the cable insulation layer ages and bends, proceed to step S3. When testing a flat cable, if the insulation layer of the flat cable ages, proceed to step S4. S3: Start the micro motor (141) to drive the belt (142), which drives the detection component (200) to move in an arc along the semi-circular groove (140); the cable is detected by the probe (230): the micro motor (204) drives the bolt (203) to rotate, which pushes the rotating sleeve (205) to move axially; the telescopic rod (206) is linked to the limit seat (220), which makes the auxiliary rod (221) slide along the track groove (211) to automatically compensate for the change in arc; the distance between the probe (230) and the cable core is kept constant to avoid false alarms due to signal attenuation caused by insulation layer accumulation. The same area is repeatedly detected 3 times to eliminate instantaneous interference; S4: When inspecting flat cables, if the insulation layer of the flat cable ages, micro motor two (222) drives the auxiliary rotating part (226) to rotate, pushing the auxiliary part (225) to slide along the reinforcing rod (224); micro motor three (227) drives the probe rod (231) to rotate, so that the probe (230) is perpendicular to the warped surface, and the same area is repeatedly inspected 3 times to eliminate momentary interference; S5: After the test is completed, reverse the micro motor (141) to return the test component (200) to the initial position, release the clamps of clamp one (120), clamp two (121), clamp three (130), and clamp four (131) on the cable, and take out the cable.

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