Device for testing electrical performance of mobile phone wire harness

Abstract

The invention relates to the technical field of electrical variable testing, in particular to a mobile phone wire harness electrical performance testing device which comprises a base. The wire harness bending mechanism comprises a wire harness box fixedly connected to the upper end face of the base, a protection assembly is arranged on the upper end face of the wire harness box, a bending assembly used for enabling a mobile phone wire harness to be in different states is arranged in the protection assembly, and a plurality of sliding assemblies are arranged at the inner bottom of the wire harness box in a linear array mode. Through the bending assembly, the sliding assembly and the fixing assembly in the wire harness bending mechanism, different bending and twisting of the wire harness can be realized, so that the change condition of the electric power of the wire harness when the wire harness is bent or twisted in the daily use process is simulated, and the risk that the wire harness is separated from the sliding assembly when the sliding assembly applies pulling force to the wire harness is prevented; by simulating the influence of the wire harness state change on the charging power, the comprehensive and real detection of the electrical performance of the wire harness is facilitated, and the integrating degree of the detection result and the actual use condition is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical performance testing, and in particular to a mobile phone wiring harness electrical performance testing device. Background Art

[0002] The mobile phone wiring harness electrical performance test device is a device used to detect the electrical performance of the mobile phone wiring harness. It can check whether the wires in the mobile phone wiring harness can conduct current normally. By applying a test current at both ends of the wire and then detecting whether a corresponding current passes, it is determined whether the line is connected. For example, a wiring harness tester disclosed in a Chinese patent with publication number CN103852666B.

[0003] The existing mobile phone harness electrical performance testing device (the mobile phone harness in this solution refers to the data cable for charging the mobile phone) detects the charging power of the harness by detecting the fluctuations of current and voltage in the harness within a limited time in only one state of the harness during the electrical performance test. However, by only detecting one state of the harness, it is impossible to simulate various complex dynamic situations of the harness during actual use. For example, when the mobile phone is moved while charging, the harness will cause obvious bending or twisting changes. The wires in the harness are usually made of metal materials. When bent or twisted, the crystal structure inside the wire will deform, resulting in an increase in resistance and a decrease in current when the voltage remains unchanged, which in turn affects the charging power. Testing in a single state cannot reflect the performance changes in these actual usage scenarios. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a mobile phone wiring harness electrical performance testing device, which can effectively solve the problem that the prior art only detects the fluctuations of current and voltage of the wiring harness within a limited time under one state, and cannot reflect the performance changes in these actual usage scenarios.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a mobile phone wiring harness electrical performance testing device, comprising:

[0007] Base and controller;

[0008] A wire harness bending mechanism, the wire harness bending mechanism comprising a wire harness box fixedly connected to the upper end surface of the base, the upper end surface of the wire harness box is provided with a protective component, the protective component is provided with a bending component for presenting the mobile phone wire harness in different states, the inner bottom linear array of the wire harness box is provided with a plurality of sliding components, and the top of each sliding component is provided with a fixed component;

[0009] A power supply mechanism and a plurality of electrical detection mechanisms, the power supply mechanism and the plurality of electrical detection mechanisms are arranged on the upper end surface of the base and are symmetrical about the wire harness bending mechanism, the electrical detection mechanisms correspond to the sliding components one by one, the electrical detection mechanisms include a shell fixedly connected to the upper end surface of the base, a first magnetic shield plate and a second magnetic shield plate are fixedly connected up and down inside the shell, the first magnetic shield plate and the second magnetic shield plate divide the inside of the shell from top to bottom into a weighing area, a magnetization area and an adsorption area, a weight detection component is arranged in the weighing area, an electromagnet that converts current into magnetic force and two magnetic conductive components that guide the direction of magnetic force transmission are arranged in the magnetization area, two magnetic absorption components for adsorbing magnetic powder and a storage component for storing magnetic powder are arranged in the adsorption area, and two spiral fans are arranged at the inner bottom of the adsorption area.

[0010] Preferably, two first partitions are evenly and fixedly connected inside the harness box, and the first partitions divide the inside of the harness box into three detection areas. The sliding components correspond to the detection areas one by one, and a plurality of air holes are provided in a linear array symmetrically with the sliding component as the center at the bottom of the detection area;

[0011] The protective component includes a protective cover fixedly connected to the upper end surface of the wiring harness box, and the protective cover has a first opening on the side facing the power supply mechanism, the first opening of the protective cover is rotatably connected to a flip frame through a hinge, a positioning plate is fixedly connected to the upper end surface of the base at a position corresponding to the flip frame, the top of the positioning plate is in contact with the bottom of the flip frame, and a second partition corresponding to the first partition is fixedly connected to the inside of the protective cover, and the second partition divides the inside of the protective cover into installation areas corresponding to each detection area.

[0012] Preferably, the bending assembly has a plurality of linear correctors, a plurality of S-shaped correctors and a plurality of roll-shaped correctors, and the linear correctors, S-shaped correctors and roll-shaped correctors are respectively fixedly connected to the inner tops of the three installation areas in a linear array;

[0013] The linear corrector is composed of a track and two electric slides, and a horizontal pusher is fixedly connected to the bottom of the electric slide to keep the wire harness in a linear state. The S-type corrector is composed of a slide and an electric slider, and a pressure pusher is fixedly connected to the bottom of the slider to make the wire harness present an S-shaped bend, and the pressure exerted on the wire harness by the pressure pushers in each adjacent two S-type correctors is opposite. The roll corrector is composed of a fixed plate and a hydraulic rod fixed to each other, and a rotator for winding the wire harness is fixedly connected to the bottom of the hydraulic rod.

[0014] Preferably, the sliding assembly comprises a slide rail fixedly connected to the bottom of the detection area, a threaded rod is rotatably connected inside the slide rail, a motor is fixedly connected to the base near the bottom of the electrical detection mechanism to drive the corresponding threaded rod to rotate, and a limit plate is fixedly connected to the position inside the slide rail near the electrical detection mechanism;

[0015] The fixing assembly includes a slider slidably connected in the slide rail, the slider is threadedly connected to the threaded rod, the top of the slider is fixedly connected to a first clamp for clamping the wiring harness, the top of the slider and behind the first clamp is fixedly connected to a female head, the side of the female head facing the first clamp is plugged into the wiring harness, and the other side of the female head is fixedly connected to a spring wire.

[0016] Preferably, the power supply mechanism includes a power supply fixedly connected to the upper end surface of the base, the power supply is plugged into the other end of the wiring harness, and a second clamp corresponding to each detection area is fixedly connected to the upper end surface of the base and located between the power supply mechanism and the wiring harness bending mechanism.

[0017] Preferably, a connector is fixedly connected to the side of the housing facing the wiring harness box, and a side of the spring wire away from the female connector is electrically connected to the connector;

[0018] The weight detection assembly comprises a weight detector fixedly connected to the bottom of the weighing area, a balance plate fixedly connected to the top of the weight detector, and a connecting rod symmetrically fixedly connected to the bottom of the balance plate;

[0019] The electromagnet is fixedly connected to the inner bottom of the magnetization zone, and the electromagnet is composed of an iron core and an electromagnetic coil. A connector is fixedly connected to the upper end surface of the second magnetic shield plate, and the positive and negative ends of the connector are connected to the positive and negative poles of the electromagnetic coil, and the other side of the connector is connected to the positive and negative poles of the connector through wires.

[0020] Preferably, the two magnetic conductive components are symmetrically arranged on both sides of the electromagnet, and the magnetic conductive components include a square frame fixedly connected to the bottom of the magnetized area, the square frame has a second opening on the side facing the electromagnet, and a magnetic conductive frame is fixedly connected to the inside of the square frame, and the end of the magnetic conductive frame facing the electromagnet is fixedly connected to the electromagnet through the second opening.

[0021] Preferably, the magnetic attraction component corresponds to the magnetic conductive component, and the magnetic attraction component includes a fixed plate slidably connected to the top of the adsorption area, the end of the connecting rod away from the balance plate passes through the weighing area and is fixedly connected to the top of the fixed plate, the top of the fixed plate is fixedly connected to a plurality of collecting covers in a circular array with the connecting rod as the center, the bottom of the fixed plate is fixedly connected to a plurality of protrusions in a rectangular array, and the edge of the bottom of the fixed plate is fixedly connected to a directional cover;

[0022] The storage component includes a storage box fixedly connected to the inside of the adsorption area and located below the magnetic attraction component, the inner walls of the storage box are fixedly connected with arc blocks, the interior of the storage box is fixedly connected with an arc-shaped partition plate corresponding to the electromagnet, the arc-shaped partition plate divides the storage box into two storage areas, and the two storage areas store magnetic powder of the same weight, the bottoms of the two storage areas are fixedly connected with barrier nets, and the spiral fans correspond to the storage areas.

[0023] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] 1. Through the bending component, sliding component and fixed component in the wire harness bending mechanism, different bending and twisting of the wire harness can be achieved, thereby simulating the change of the wire harness electrical power when the wire harness is bent or twisted during daily use. Among them, the bending component will change the linear, S-curve and coiled state of the wire harness in the wire harness box to simulate the impact of changes in the wire harness during daily use on the charging power. The sliding component is used to straighten and fix the wire harness, and when the state of the wire harness changes, the stretching of the wire harness changes differently, thereby simulating the impact of tension on the charging power of the wire harness when the state of the wire harness changes during daily use. The fixed component can fix the wire harness in the sliding component under the detection state to prevent the risk of the wire harness detaching from the sliding component when the sliding component applies tension to the wire harness. By simulating the impact of changes in the state of the wire harness on the charging power, it is helpful to comprehensively and truly detect the electrical performance of the wire harness and improve the fit between the detection results and actual usage.

[0025] 2. The electric power of the wiring harness can be detected through the weight detection component, electromagnet and magnetic absorption component in the electrical detection mechanism. The weight detection component is used to detect the weight change when the magnetic absorption component absorbs magnetic powder, so as to judge the electric power fluctuation of the wiring harness under different changing states. The electromagnet can convert the current transmitted by the wiring harness into magnetic force by using Ampere's law, and act on the magnetic absorption component, so that the magnetic force of the magnetic absorption component changes according to the fluctuation of the wiring harness current. The magnetic absorption component uses the magnetic force transmitted by the electromagnet to adsorb magnetic powder. By adsorbing magnetic powder and detecting its weight change, the fluctuation of the current under different changing states of the wiring harness can be converted into measurable intuitive data, so as to accurately judge the electric power fluctuation of the wiring harness under various states. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the overall bottom of the present invention;

[0029] Figure 3It is a schematic diagram of the structure inside the wire harness bending mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure inside the wiring harness box of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the sliding assembly and the fixing assembly of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the sliding assembly of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the fixing assembly of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the cross section of the electrical property detection mechanism of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the weight detection component of the present invention;

[0036] Fig.10 It is a structural schematic diagram of the bottom of the weight detection component of the present invention;

[0037] Fig.11 It is a structural schematic diagram of the magnetic attraction component of the present invention;

[0038] Fig.12 It is a schematic diagram of the structure inside the magnetic attraction component of the present invention;

[0039] Fig.13 It is a structural schematic diagram of the storage component of the present invention.

[0040] Figure numerals: 1, base; 11, controller; 2, wire harness bending mechanism; 21, wire harness box; 211, air hole; 212, first partition; 22, flip frame; 23, protection component; 231, protection cover; 232, second partition; 24, positioning plate; 25, bending component; 251, linear corrector; 252, S-type corrector; 253, roll corrector; 26, sliding component; 261, slide rail; 262, threaded rod; 263, limit plate; 264, motor; 27, fixing component; 271, slider; 272, first clamp; 273, female head; 274, spring wire; 3, power supply mechanism; 31, power supply; 32 , the second clamp; 4, electrical detection mechanism; 41, shell; 42, first magnetic shield plate; 43, second magnetic shield plate; 44, weight detection component; 441, weight detector; 442, balance plate; 443, connecting rod; 45, electromagnet; 451, joint; 46, magnetic conductive component; 461, square frame; 462, magnetic conductive frame; 47, magnetic absorption component; 471, fixed disk; 472, directional cover; 473, collecting cover; 474, bump; 48, storage component; 481, storage box; 482, arc partition plate; 483, arc surface block; 484, barrier net; 49, connector; 410, propeller fan; 5, cooling and heating device. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The present invention will be further described below in conjunction with the embodiments.

[0043] Example: Refer to Figures 1 to 13 , a mobile phone wiring harness electrical performance testing device, comprising:

[0044] Base 1 and controller 11;

[0045] The wire harness bending mechanism 2 includes a wire harness box 21 fixedly connected to the upper end surface of the base 1, a protective component 23 is provided on the upper end surface of the wire harness box 21, a bending component 25 for presenting the mobile phone wire harness in different states is provided in the protective component 23, and a plurality of sliding components 26 are provided in a linear array at the inner bottom of the wire harness box 21, and a fixing component 27 is provided on the top of each sliding component 26;

[0046] A power supply mechanism 3 and a plurality of electrical detection mechanisms 4 are provided on the upper end surface of the base 1 and are symmetrical about the wire harness bending mechanism 2. The electrical detection mechanism 4 corresponds one-to-one to the sliding assembly 26. The electrical detection mechanism 4 comprises a shell 41 fixedly connected to the upper end surface of the base 1. A first magnetic shield plate 42 and a second magnetic shield plate 43 are fixedly connected up and down inside the shell 41. The first magnetic shield plate 42 and the second magnetic shield plate 43 divide the inside of the shell 41 from top to bottom into a weighing area, a magnetization area and an adsorption area. A weight detection assembly 44 is provided in the weighing area. An electromagnet 45 for converting current into magnetic force and two magnetic conductive assemblies 46 for guiding the direction of magnetic force transmission are provided in the magnetization area. Two magnetic absorption assemblies 47 for adsorbing magnetic powder and a storage assembly 48 for storing magnetic powder are provided in the adsorption area. Two spiral fans 410 are provided at the inner bottom of the adsorption area.

[0047] The harness box 21 in the harness bending mechanism 2 can be used to place the harness in different zones, and the bending assembly 25 can change the states of the harness placed in different zones, thereby simulating the bending or twisting changes that occur in the harness during daily use. The sliding assembly 26 can straighten the harness before the bending assembly 25 changes its state, thereby facilitating the bending assembly 25 to adjust the state of the harness. At the same time, when the bending assembly 25 changes the state of the harness, the sliding assembly 26 will also apply a certain pulling force to the harness, thereby When the state of the wiring harness changes during daily use, the influence of the pulling force on the charging power current of the wiring harness is simulated. The electromagnet 45 in the electrical detection mechanism 4 can convert the current when the state of the wiring harness changes into magnetic force, and transmit it to the magnetic absorption component 47 through the magnetic conductive component 46, thereby magnetizing the magnetic absorption component 47. The magnetized magnetic absorption component 47 will absorb the magnetic powder in the storage component 48, and the weight detection component 44 can detect the amount of magnetic powder absorbed by the magnetic absorption component 47, so as to realize the detection of the charging power of the wiring harness when the state changes.

[0048] Reference Figures 3 to 5 Two first partitions 212 are evenly and fixedly connected inside the harness box 21. The first partition 212 divides the inside of the harness box 21 into three detection areas. The sliding components 26 correspond to the detection areas one by one. A plurality of air holes 211 are provided in a symmetrical linear array with the sliding component 26 as the center at the bottom of the detection area.

[0049] The protective component 23 includes a protective cover 231 fixedly connected to the upper end surface of the wiring harness box 21, and the protective cover 231 has a first opening on the side facing the power supply mechanism 3. The first opening of the protective cover 231 is rotatably connected to the flip frame 22 through a hinge. A positioning plate 24 is fixedly connected to the upper end surface of the base 1 at a position corresponding to the flip frame 22. The top of the positioning plate 24 contacts the bottom of the flip frame 22. A second partition 232 corresponding to the first partition 212 is fixedly connected to the inside of the protective cover 231. The second partition 232 divides the inside of the protective cover 231 into installation areas corresponding to each detection area.

[0050] The sliding assembly 26 can be used to realize the movement of the wiring harness in the corresponding detection areas of the three detection areas, and the flip frame 22 in the protective assembly 23 can be used to realize the connection between the wiring harness and the sliding assembly 26 by flipping the flip frame 22 when the wiring harness is placed in the detection area for the first time. The positioning plate 24 can overlap with the flip frame 22, so that the flip frame 22 can close the protective assembly 23 when it is closed.

[0051] Reference Figures 4 to 6 The bending assembly 25 has a plurality of linear correctors 251, a plurality of S-shaped correctors 252 and a plurality of roll-shaped correctors 253. The linear correctors 251, the S-shaped correctors 252 and the roll-shaped correctors 253 are respectively fixedly connected to the inner tops of the three installation areas in a linear array;

[0052] The linear corrector 251 is composed of a track and two electric slides, and a horizontal pusher that keeps the wire harness in a linear state is fixedly connected to the bottom of the electric slide. The S-type corrector 252 is composed of a slide and an electric slider, and a pressure pusher that makes the wire harness present an S-shaped bend is fixedly connected to the bottom of the slider, and the pressure exerted on the wire harness by the pressure pushers in each adjacent two S-type correctors 252 is opposite. The coil corrector 253 is composed of a fixed plate and a hydraulic rod fixed to each other, and a rotator that winds the wire harness is fixedly connected to the bottom of the hydraulic rod.

[0053] The linear corrector 251 in the bending component 25 can be used to correct the linear shape of the wire harness in the corresponding detection area, thereby detecting the change in the charging power of the wire harness under the standard state. The S-shaped corrector 252 is used to detect the change in the charging power when the wire harness is bent, and the curled corrector 253 is used to detect the change in the charging power when the wire harness is twisted.

[0054] Reference Figures 5 to 7 The sliding assembly 26 includes a slide rail 261 fixedly connected to the bottom of the detection area, a threaded rod 262 is rotatably connected inside the slide rail 261, a motor 264 is fixedly connected to the bottom of the base 1 near the electrical detection mechanism 4 to drive the corresponding threaded rod 262 to rotate, and a limit plate 263 is fixedly connected inside the slide rail 261 and near the electrical detection mechanism 4;

[0055] The fixing assembly 27 includes a slider 271 slidably connected in the slide rail 261, the slider 271 is threadedly connected to the threaded rod 262, the top of the slider 271 is fixedly connected to a first clamp 272 for clamping the wiring harness, the top of the slider 271 and behind the first clamp 272 is fixedly connected to a female connector 273, the side of the female connector 273 facing the first clamp 272 is plugged into the wiring harness, and the other side of the female connector 273 is fixedly connected to a spring wire 274.

[0056] The forward and reverse rotation of the motor 264 in the sliding component 26 drives the threaded rod 262 to synchronously rotate forward and reverse, thereby realizing the reciprocating movement of the slider 271 in the fixed component 27 in the slide rail 261, and the spring wire 274 changes according to the movement of the slider 271 in the slide rail 261.

[0057] Reference Figures 4 to 5 The power supply mechanism 3 includes a power supply 31 fixedly connected to the upper end surface of the base 1, the power supply 31 is plugged into the other end of the wiring harness, and a second clamp 32 corresponding to each detection area is fixedly connected to the upper end surface of the base 1 and located between the power supply mechanism 3 and the wiring harness bending mechanism 2.

[0058] The power supply mechanism 3 can be used to provide power for the wiring harness, and the second clamp 32 is used to fix one end of the wiring harness plugged into the power supply 31 to prevent the risk of the wiring harness being detached from the power supply mechanism 3 when the sliding component 26 moves.

[0059] Reference Figures 8 to 9 , a connector 49 is fixedly connected to the side of the housing 41 facing the wiring harness box 21, and a side of the spring wire 274 away from the female connector 273 is electrically connected to the connector 49;

[0060] The weight detection assembly 44 includes a weight detector 441 fixedly connected to the bottom of the weighing area, a balance plate 442 is fixedly connected to the top of the weight detector 441, and a connecting rod 443 is symmetrically fixedly connected to the bottom of the balance plate 442;

[0061] The electromagnet 45 is fixedly connected to the inner bottom of the magnetization zone, and the electromagnet 45 is composed of an iron core and an electromagnetic coil. The upper end surface of the second magnetic shielding plate 43 is fixedly connected with a connector 451, and the positive and negative ends of the connector 451 are connected to the positive and negative poles of the electromagnetic coil, and the other side of the connector 451 is connected to the positive and negative poles of the connector 49 through an electric wire.

[0062] The weight detector 441 can be used to detect the weight of the magnetic powder absorbed by the subsequent magnetic attraction component 47, and the electromagnet 45 can convert the current transmitted by the wire harness into magnetic force and act on the magnetic attraction component 47.

[0063] Reference Figures 9 and 10Two magnetic conductive components 46 are symmetrically arranged on both sides of the electromagnet 45. The magnetic conductive components 46 include a square frame 461 fixedly connected to the bottom of the magnetized area. The square frame 461 has a second opening on the side facing the electromagnet 45. A magnetic conductive frame 462 is fixedly connected inside the square frame 461. The end of the magnetic conductive frame 462 facing the electromagnet 45 is fixedly connected to the electromagnet 45 through the second opening.

[0064] The magnetic force converted by the electromagnet 45 is guided and diffused by the magnetic conductive component 46 , and the magnetized area formed by the first magnetic shield plate 42 and the second magnetic shield plate 43 can prevent the electromagnet 45 guided by the magnetic conductive component 46 from diffusing outside the housing 41 .

[0065] Reference Figures 11 to 13 The magnetic attraction component 47 corresponds to the magnetic conductive component 46. The magnetic attraction component 47 includes a fixed plate 471 slidably connected to the top of the adsorption area. The end of the connecting rod 443 away from the balance plate 442 passes through the weighing area and is fixedly connected to the top of the fixed plate 471. The top of the fixed plate 471 is fixedly connected with a plurality of collecting covers 473 in a circular array with the connecting rod 443 as the center. The bottom of the fixed plate 471 is fixedly connected with a plurality of protrusions 474 in a rectangular array. The edge of the bottom of the fixed plate 471 is fixedly connected with a directional cover 472.

[0066] The storage component 48 includes a storage box 481 fixedly connected inside the adsorption area and located below the magnetic attraction component 47. The inner walls of the storage box 481 are fixedly connected with arc blocks 483. The interior of the storage box 481 is fixedly connected with an arc-shaped partition plate 482 corresponding to the electromagnet 45. The arc-shaped partition plate 482 divides the storage box 481 into two storage areas, and the two storage areas store magnetic powder of the same weight. The bottom of the two storage areas are fixedly connected with a barrier net 484, and the spiral fan 410 corresponds to the storage area.

[0067] The fixed disk 471 in the magnetic attraction component 47 can collect the diffused magnetic force guided by the magnetic conductive component 46 through the collecting cover 473, and apply it to the fixed disk 471, and the fixed disk 471 will transfer the magnetic force to the protrusion 474, and the directional cover 472 will limit the direction of the magnetic force, so that the magnetic force is always facing the storage area corresponding to the storage box 481 in the storage component 48. Magnetic powder is stored in the storage area, and the rotation of the spiral fan 410 makes the magnetic powder stored in the storage area float and flip, thereby enhancing the adsorption of the magnetic powder on the fixed disk 471.

[0068] Among them, the side of the base 1 is fixedly connected to the controller 11 that controls the overall operation of the equipment. Specifically, the controller 11 is electrically connected to the linear corrector 251, the S-type corrector 252, the curling corrector 253, the motor 264, the power supply 31, the weight detector 441, and the refrigeration and heating device 5.

[0069] The working principle of the present invention is as follows:

[0070] Step 1: First, open the flip frame 22 connected to the protective cover 231 by a hinge, and then plug one end of the wire harness (the wire harness in this solution refers to the data cable, and the data cable used for detection in this solution is a data cable that can be normally powered) into the female connector 273 of the fixed component 27 on the corresponding sliding component 26, so that the two are tightly connected to ensure that the current can be stably transmitted. Then, use the first clamp 272 on the top of the slider 271 in the fixed component 27 to firmly clamp the wire harness to prevent it from being displaced in subsequent operations. After completing the connection between the wire harness and the sliding component 26, close the flip frame 22 (when the flip frame 22 is opened, the sliding component 26 will automatically move to the position of the flip frame 22, and when the flip frame 22 is closed, the sliding component 26 will automatically leave the position of the flip frame 22. Because the flip frame 22 and the protective cover 231 are connected by a hinge, the flip frame 22 can rotate around the hinge axis to achieve opening and closing operations. In this process, the position change of the flip frame 22 is transmitted to the controller 11 through mechanical linkage or sensor feedback. When the flip frame 22 When it is opened, its action triggers the corresponding program in the controller 11, so that when the flip frame 22 is opened, the sliding component 26 will automatically move to the position of the flip frame 22, and when the flip frame 22 is closed, its closing action is detected by the sensor again, and the signal is fed back to the controller 11, so that when the flip frame 22 is closed, the sliding component 26 will automatically leave the position of the flip frame 22). At this time, the top of the positioning plate 24 at the corresponding position of the upper end surface of the base 1 and the flip frame 22 is in close contact with the bottom of the flip frame 22, forming a good closed structure, effectively preventing external factors (such as temperature, external force pulling, etc.) from interfering with the detection process, and then, the other end of the wiring harness is plugged into the power supply 31, so as to achieve the purpose of powering the wiring harness, and in order to further ensure the stability of the wiring harness during the power supply process, the second clamp 32 is used to fix the wiring harness at this end between the power supply mechanism 3 and the wiring harness bending mechanism 2 on the upper end surface of the base 1 to prevent the wiring harness from accidentally detaching from the power supply 31 when the sliding component 26 moves later, thereby affecting the detection result.

[0071] Step 2: After the two ends of the wire harness in each detection area are connected to the fixed component 27 in the sliding component 26 and the power supply 31;

[0072] The corresponding linear corrector 251 in the detection area starts working:

[0073] At this time, the sliding assembly 26 of the detection area corresponding to the linear corrector 251 will straighten the wire harness in this detection area. At the same time, the two electric slides on the track begin to move relative to each other, so that the horizontal pusher is used to push the wire harness in the corresponding detection area into a linear state (the wire harness in this detection area is in a standard state), and then the power supply 31 of the power supply mechanism 3 supplies power to the wire harness, and the current is transmitted to each electrical detection mechanism 4 through the wire harness. After the current is transmitted to each electrical detection mechanism 4, the electromagnet 45 (composed of a permanent magnet and an electromagnetic coil) fixedly connected to the bottom of the magnetization area inside the shell 41 converts the current transmitted by the wire harness into magnetic force according to Ampere's law (the magnitude of the magnetic force converted by the electromagnet 45 is determined by the magnitude of the current transmitted by the wire harness). In this process, one side of the connector 451 fixedly connected to the bottom of the magnetization area is connected to the positive and negative poles of the electromagnetic wire, and the other side is connected to the positive and negative poles of the connector 49 through an electric wire, to ensure that the current can pass smoothly and generate a stable magnetic force in the electromagnet 45;

[0074] Then the electromagnet 45 guides and transmits the converted magnetic force through the magnetic conductive component 46. Since the square frame 461 in the magnetic conductive component 46 and the magnetic conductive frame 462 fixedly connected inside are located in the magnetized area of ​​the shell 41, and the magnetized area is composed of the first magnetic shield plate 42 and the second magnetic shield plate 43, it has a shielding effect so that the magnetic force is effectively limited to the magnetized area inside the shell 41, and then transmitted to the magnetic absorption component 47 in the adsorption area;

[0075] When the magnetic force acts on the magnetic attraction component 47, the multiple collecting covers 473 on the top of the magnetic attraction component 47 collect the magnetic force and transfer the magnetic force to the fixed disk 471 and the protrusion 474. At the same time, the directional cover 472 fixedly connected to the bottom edge of the fixed disk 471 limits the direction of the magnetic force, so that the magnetic force is always directed toward the storage area corresponding to the storage box 481 in the storage component 48;

[0076] Then the spiral fan 410 in the storage component 48 starts to rotate (the spiral fan 410 has a built-in motor), causing the magnetic powder stored in the storage box 481 to float and flip under the action of the spiral fan 410, thereby enhancing the fluidity of the magnetic powder, thereby improving the adsorption effect of the fixed disk 471 and the protrusion 474 on the magnetic powder. At this time, the weight detector 441 of the weight detection component 44 detects the weight change of the fixed disk 471 after adsorbing the magnetic powder in real time. Since the fixed disk 471 is connected to the balance plate 442 of the weight detection component 44 through the connecting rod 443, and the other end of the connecting rod 443 passes through the weighing area and is connected to the fixed disk 471, when the weight of the fixed disk 471 changes after adsorbing the magnetic powder, the weight detection component 44 can detect the weight value at this time (note: the weight of the magnetic absorption component 47 itself has been reset to zero in the weight detection component 44), so as to judge the charging power fluctuation of the wiring harness in the standard linear state through the weight change. The greater the weight change, the greater the current fluctuation, which in turn reflects the fluctuation of the charging power, and uses this as comparison data.

[0077] The corresponding S-shaped corrector 252 in the detection area starts to work (the S-shaped corrector 252 and the linear corrector 251 are started synchronously):

[0078] At this time, the sliding assembly 26 of the detection area corresponding to the S-shaped corrector 252 will not straighten the wire harness in this detection area, but make the wire harness have a certain degree of slack. At this time, the pressure pusher fixedly connected to the bottom of the slider moves along the slideway driven by the electric slider, exerting pressure on the wire harness in the detection area, so that the wire harness presents an S-shaped bend. Since the pressure pushers in the adjacent S-shaped correctors 252 exert opposite pressures on the wire harness, bending conditions in different directions can be simulated, thereby detecting the electrical properties of the wire harness in a bent state;

[0079] When the S-shaped corrector 252 completes the S-shaped bending of the wiring harness, the motor 264 in the sliding assembly 26 is started according to the preset program in the controller 11 (the preset program in the controller 11 is customized by the staff), thereby controlling the motor 264 to drive the threaded rod 262 connected to the corresponding slide rail 261 to rotate. Since the slider 271 is threadedly connected to the threaded rod 262, and the slide rail 261 is internally fixedly connected to the side of the electrical detection mechanism 4, the slider 271 moves back and forth in the slide rail 261 as the threaded rod 262 rotates, thereby applying a certain pulling force to the wiring harness, simulating the influence of external force on the wiring harness when bending. At this time, the spring wire 274 will undergo corresponding expansion and contraction changes according to the movement of the slider 271 in the slide rail 261, ensuring the connection between the wiring harness and the electrical detection mechanism 4. Always keep the electrical connection, and then repeat the process of current transmission, magnetic force conversion, magnetic conduction, magnetic attraction and weight detection when the linear corrector 251 starts working, that is, the current is transmitted from the power supply mechanism 3 to each electrical detection mechanism 4 through the wiring harness, the electromagnet 45 converts the current into magnetic force, the magnetic conduction component 46 guides the magnetic force to be transmitted to the magnetic attraction component 47, the magnetic attraction component 47 absorbs the magnetic powder floating and flipped in the storage component 48 due to the rotation of the spiral fan 410, and the weight detection component 44 detects the weight change of the magnetic attraction component 47 after the magnetic powder is adsorbed. By comparing with the data detected in the linear state, the fluctuation of the charging power of the wiring harness in the S-shaped bending state is analyzed, so as to obtain the degree of influence of the bending on the electrical performance. For example, if the weight change amplitude increases significantly, it may mean that the bending causes the internal wire resistance of the wiring harness to increase, thereby affecting the charging power.

[0080] The corresponding curling corrector 253 in the detection area starts to work (the curling corrector 253, the S-shaped corrector 252, and the linear corrector 251 are started synchronously):

[0081] At this time, the sliding component 26 in the detection area corresponding to the curling straightener 253 will not straighten the wire harness in this detection area, but will make the wire harness have a certain degree of slack. The hydraulic rod in the curling straightener 253 will extend, thereby driving the rotator to descend, and the rotator has a built-in motor. When the rotator contacts the wire harness, the tactile sensor will feedback information to the controller 11, so that the controller 11 stops the extension of the hydraulic rod and starts the rotator to rotate, thereby realizing the winding of the wire harness, making the wire harness present a curled twisted state, simulating the twisting situation that may occur in the actual use of the wire harness.

[0082] When the winding of the wire harness is completed, the motor 264 in the sliding assembly 26 is also started according to the preset program in the controller 11, thereby applying a certain pulling force to the wire harness, making the detection conditions more diversified and closer to the actual usage scenario, and then repeating the detection steps of the electrical detection mechanism 4 again, and then comparing and analyzing the data detected in the linear state and the S-shaped bending state to determine whether the torsion will cause poor contact between the wires inside the wire harness, thereby affecting the stability of the charging power.

[0083] Step 3: While the wire corrector 251, S-type corrector 252 and curling corrector 253 are changing the state of the wire harness, the staff can control the cooling and heating device 5 through the controller 11 to set the temperature in the detection area according to the detection requirements, so as to simulate the impact of different actual temperature usage environments on the electrical performance of the mobile phone wire harness.

[0084] At the same time, during the entire detection process, the controller 11 will continue to collect the weight data detected by the weight detection component 44 of each electrical detection mechanism 4 under different wiring harness states. These data are indicators reflecting the electrical performance of the wiring harness. Since the weight detection component 44 indirectly reflects the fluctuation of the wiring harness current by detecting the change in the weight of the magnetic powder adsorbed by the magnetic absorption component 47, and the current fluctuation is closely related to the charging power fluctuation, the weight data collected by the controller can accurately reflect the change law of the charging power of the wiring harness under different states (linear shape, S-shaped bending, coiled torsion) and under different tension, temperature and other conditions.

[0085] The staff can analyze the collected data through the controller or directly through the appropriate programming software. For example, by comparing the change amplitude and trend of weight data under different states, the electrical performance of the wiring harness can be evaluated to see if it meets the product design requirements and industry standards. If the weight data fluctuates abnormally under a certain state, such as a sudden increase or decrease, it may mean that the wiring harness has electrical performance problems under this state, such as abnormal changes in wire resistance, poor contact, etc. Through comprehensive analysis of these data, the performance problems that may occur in actual use of the wiring harness can be accurately judged. For example, when the mobile phone moves while charging and causes the wiring harness to bend or twist, will there be an abnormal drop in charging power, unstable charging, or even failure to charge? These analysis results provide a reliable basis for the quality evaluation of mobile phone wiring harnesses, which helps manufacturers to promptly discover defects in the wiring harness production process, take improvement measures, and improve product quality. At the same time, it also provides an important reference basis for mobile phone manufacturers when selecting wiring harness suppliers, ensuring the stability and reliability of the overall performance of mobile phones.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile phone harness electrical performance test device, characterized in that: include: A base (1) and a controller (11); A wire harness bending mechanism (2), the wire harness bending mechanism (2) comprising a wire harness box (21) fixedly connected to the upper end surface of a base (1), the upper end surface of the wire harness box (21) being provided with a protective component (23), a bending component (25) for placing the mobile phone wire harness in different states being provided inside the protective component (23), a plurality of sliding components (26) being provided in a linear array at the inner bottom of the wire harness box (21), and a fixing component (27) being provided at the top of each sliding component (26); A power supply mechanism (3) and a plurality of electrical detection mechanisms (4), the power supply mechanism (3) and the plurality of electrical detection mechanisms (4) being arranged on the upper end surface of the base (1) and symmetrical with respect to the wire harness bending mechanism (2), the electrical detection mechanisms (4) corresponding one to one with the sliding assembly (26), the electrical detection mechanisms (4) comprising a shell (41) fixedly connected to the upper end surface of the base (1), a first magnetic shield plate (42) and a second magnetic shield plate (43) being fixedly connected up and down inside the shell (41), the first magnetic shield plate ( 42) and a second magnetic shield plate (43) divide the interior of the shell (41) from top to bottom into a weighing area, a magnetization area and an adsorption area, wherein a weight detection component (44) is arranged in the weighing area, an electromagnet (45) for converting electric current into magnetic force and two magnetic conductive components (46) for guiding the direction of magnetic force transmission are arranged in the magnetization area, two magnetic absorption components (47) for absorbing magnetic powder and a storage component (48) for storing magnetic powder are arranged in the adsorption area, and two spiral fans (410) are arranged at the inner bottom of the adsorption area.

2. A mobile phone wiring harness electrical performance testing device according to claim 1, characterized in that: Two first partitions (212) are evenly and fixedly connected inside the wiring harness box (21), the first partitions (212) equally divide the inside of the wiring harness box (21) into three detection areas, the sliding components (26) correspond to the detection areas one by one, and the bottom of the detection area is provided with a plurality of air holes (211) in a symmetrical linear array with the sliding component (26) as the center; The protection component (23) comprises a protection cover (231) fixedly connected to the upper end surface of the wiring harness box (21), and the side of the protection cover (231) facing the power supply mechanism (3) has a first opening, the first opening is rotatably connected to a flip frame (22) via a hinge, a positioning plate (24) is fixedly connected to the upper end surface of the base (1) at a position corresponding to the flip frame (22), the top of the positioning plate (24) is in contact with the bottom of the flip frame (22), and a second partition (232) corresponding to the first partition (212) is fixedly connected to the inside of the protection cover (231), and the second partition (232) divides the inside of the protection cover (231) into installation areas corresponding to the respective detection areas.

3. A mobile phone wiring harness electrical performance testing device according to claim 1, characterized in that: The bending assembly (25) comprises a plurality of linear correctors (251), a plurality of S-shaped correctors (252) and a plurality of roll-shaped correctors (253), wherein the linear correctors (251), the S-shaped correctors (252) and the roll-shaped correctors (253) are respectively fixedly connected to the inner tops of the three installation areas in a linear array; The linear straightener (251) is composed of a track and two electric slides, and a horizontal pusher is fixedly connected to the bottom of the electric slide to keep the wire harness in a linear state. The S-shaped straightener (252) is composed of a slide and an electric slider, and a pressure pusher is fixedly connected to the bottom of the electric slider to make the wire harness present an S-shaped bend, and the pressure exerted on the wire harness by the pressure pushers in each two adjacent S-shaped straighteners (252) is opposite. The winding straightener (253) is composed of a fixed plate and a hydraulic rod fixed to each other, and a rotator for winding the wire harness is fixedly connected to the bottom of the hydraulic rod.

4. A mobile phone harness electrical performance testing device according to claim 1, characterized in that: The sliding assembly (26) comprises a sliding rail (261) fixedly connected to the bottom of the detection area, a threaded rod (262) being rotatably connected inside the sliding rail (261), a motor (264) for driving the corresponding threaded rod (262) to rotate being fixedly connected at the bottom of the base (1) near the electrical detection mechanism (4), and a limiting plate (263) being fixedly connected at a position inside the sliding rail (261) and near the electrical detection mechanism (4); The fixing assembly (27) comprises a slider (271) slidably connected in the slide rail (261), the slider (271) being threadedly connected to the threaded rod (262), the top of the slider (271) being fixedly connected to a first clamp (272) for clamping the wire harness, the top of the slider (271) being fixedly connected to a female connector (273) located behind the first clamp (272), the female connector (273) being plugged into the wire harness on one side facing the first clamp (272), and the other side of the female connector (273) being fixedly connected to a spring wire (274).

5. A mobile phone harness electrical performance testing device according to claim 1, characterized in that: The power supply mechanism (3) comprises a power supply (31) fixedly connected to the upper end surface of the base (1), the power supply (31) being plugged into the other end of the wire harness, and a second clamp (32) corresponding to each detection area is fixedly connected to the upper end surface of the base (1) and located between the power supply mechanism (3) and the wire harness bending mechanism (2).

6. A mobile phone harness electrical performance testing device according to claim 4, characterized in that: A connector (49) is fixedly connected to a side of the housing (41) facing the wiring harness box (21), and a side of the spring wire (274) away from the female connector (273) is electrically connected to the connector (49); The weight detection assembly (44) comprises a weight detector (441) fixedly connected to the bottom of the weighing area, a balance plate (442) fixedly connected to the top of the weight detector (441), and a connecting rod (443) symmetrically fixedly connected to the bottom of the balance plate (442); The electromagnet (45) is fixedly connected to the inner bottom of the magnetized area, and the electromagnet (45) is composed of an iron core and an electromagnetic coil. The upper end surface of the second magnetic shielding plate (43) is fixedly connected to a connector (451), the positive and negative ends of the connector (451) are connected to the positive and negative poles of the electromagnetic coil, and the other side of the connector (451) is connected to the positive and negative poles of the connector (49) through an electric wire.

7. A mobile phone harness electrical performance testing device according to claim 6, characterized in that: The two magnetic conductive components (46) are symmetrically arranged on both sides of the electromagnet (45), and the magnetic conductive components (46) include a square frame (461) fixedly connected to the bottom of the magnetized area, and the square frame (461) has a second opening on the side facing the electromagnet (45), and a magnetic conductive frame (462) is fixedly connected inside the square frame (461), and one end of the magnetic conductive frame (462) facing the electromagnet (45) is fixedly connected to the electromagnet (45) through the second opening.

8. A mobile phone harness electrical performance testing device according to claim 7, characterized in that: The magnetic attraction component (47) corresponds to the magnetic conductive component (46), and the magnetic attraction component (47) comprises a fixed plate (471) slidably connected to the top of the adsorption area, the end of the connecting rod (443) away from the balance plate (442) passes through the weighing area and is fixedly connected to the top of the fixed plate (471), a plurality of collecting covers (473) are fixedly connected to the top of the fixed plate (471) in a circular array with the connecting rod (443) as the center, a plurality of protrusions (474) are fixedly connected to the bottom of the fixed plate (471) in a rectangular array, and a directional cover (472) is fixedly connected to the edge of the bottom of the fixed plate (471); The storage component (48) comprises a storage box (481) fixedly connected inside the adsorption area and located below the magnetic attraction component (47); the inner walls of the storage box (481) are fixedly connected with arc blocks (483); the interior of the storage box (481) is fixedly connected with an arc-shaped partition plate (482) corresponding to the electromagnet (45); the arc-shaped partition plate (482) divides the storage box (481) into two storage areas, and magnetic powder of the same weight is stored in the two storage areas; the bottoms of the two storage areas are fixedly connected with a barrier net (484); and the spiral fan (410) corresponds to the storage area.

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