A wireless charging test device

Abstract

This invention discloses a wireless charging testing device, including a horizontally arranged worktable. A multi-coil feeding mechanism, which can be driven to reciprocate on the worktable, is arranged above the worktable along the movement direction of the multi-coil feeding mechanism, with a detection unloading mechanism and a feeding mechanism spaced apart. A feeding platform is arranged on one side of the worktable, corresponding to the feeding mechanism. This invention can replace manual inspection or single machine inspection, realizing batch inspection of coils and improving inspection efficiency and accuracy. This invention is applicable to the technical field of coil inspection in the production of wireless charging devices.

Description

Technical Field

[0001] This invention belongs to the technical field of testing equipment in the production of wireless charging devices, specifically, it relates to a wireless charging testing device. Background Technology

[0002] To prevent environmental pollution from existing energy sources, especially fuel-powered vehicles, electric vehicles are currently being used as an effective alternative energy source to replace fuel-powered vehicles, achieving energy conservation and emission reduction. With the continuous improvement of electric vehicles, contactless charging has replaced the direct plug-in charging of charging stations, providing convenient charging and avoiding the risk of electric shock. Contactless charging, specifically wireless charging, relies on coils as its main component. To test the performance of coils during production, probe modules are used to ensure coil yield and compliance with standards. Current testing is generally done manually, which is prone to errors and fatigue. To overcome these problems, testing equipment is used. However, during testing, poor contact between the probe and coil connector often occurs, leading to unstable test results. Furthermore, testing can only be done one at a time, not in batches, resulting in extremely low efficiency. Therefore, there is an urgent need for coil testing equipment to replace manual or single-machine testing, enabling batch testing of coils and improving efficiency and accuracy. Summary of the Invention

[0003] This invention provides a wireless charging testing device to replace manual or machine-based single-function testing, enabling batch testing of coils and improving testing efficiency and accuracy.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A wireless charging testing device includes a horizontally arranged workbench, a multi-coil feeding mechanism that can be driven to reciprocate on the workbench, a detection unloading mechanism and a feeding mechanism that are spaced apart above the workbench along the movement direction of the multi-coil feeding mechanism, and a feeding platform that is arranged on one side of the workbench and corresponding to the feeding mechanism.

[0006] Furthermore, the multi-coil feeding mechanism includes a bottom mounting plate that is slidably connected to the upper end surface of the workbench, and multiple feeding units are evenly arranged on the bottom mounting plate. Coils are placed in batches on the feeding units by the feeding mechanism.

[0007] Furthermore, the feeding unit includes an air intake chamber opened on the upper surface of the bottom mounting plate, a first air intake channel connecting each air intake chamber opened on the bottom mounting plate, an adjustment plate provided at the upper end of the air intake chamber, and air intake channels uniformly constructed along its circumference on the adjustment plate, with each air intake channel corresponding to the lower surface of the coil. A pressure plate is detachably mounted on the upper end of the bottom mounting plate, the adjustment plate is located between the bottom mounting plate and the pressure plate, an assembly port is opened on the pressure plate and at the adjustment plate, two parallel resting ports are opened on the pressure plate, and each resting port is connected to the assembly port. The coil is placed in the assembly port, and the two connectors of the coil extend out of the corresponding resting ports.

[0008] Furthermore, an elastic adjusting ring with two free ends is fitted into the assembly port. The outer circumferential surface of the elastic adjusting ring is elastically tightened onto the circumferential surface of the assembly port. A limiting piece is constructed on each of the two free ends of the elastic adjusting ring, and each limiting piece is snapped into the corresponding resting opening.

[0009] Furthermore, a probe socket is provided on one side of the pressure plate and at each material placement unit. The probe socket includes a fixed base connected to the bottom mounting plate. A strip conductive plate is provided on the upper surface of the fixed base and corresponding to each placement opening. A probe insert is constructed at the end of the strip conductive plate away from the placement opening. The probe insert includes a metal plug sleeve vertically assembled in the probe socket. A connecting flange connected to the upper surface of the probe socket is constructed at the upper end of the metal plug sleeve. Multiple strip openings are spaced apart along the circumference of the metal plug sleeve. Each strip opening extends vertically upward from the lower end of the metal plug sleeve. An inwardly protruding tightening part is constructed in the middle of the metal plug sleeve.

[0010] Furthermore, the detection and feeding mechanism includes multiple probe modules and multiple suction pressure plate assemblies. The probe modules and suction pressure plate assemblies are evenly installed on the top mounting plate, and the probe modules and suction pressure plate assemblies are arranged in a one-to-one correspondence. When the detection and feeding mechanism and the multi-coil feeding mechanism are aligned vertically, the two connectors of each probe module and the corresponding coil below it are aligned, and the suction pressure plate assembly is aligned with the coil.

[0011] Furthermore, the probe module includes a probe mounting base, with two detection probes disposed at the lower end of the probe mounting base. The probe mounting base is mounted on a connecting base, and an installation port is provided on the top mounting plate. A limiting flange is constructed at the lower end of the installation port, and the connecting base is connected to the limiting flange via the installation port.

[0012] Furthermore, an elastic pressing component is provided on one side of the probe mounting base. The elastic pressing component includes two guide rods inserted side by side into the connecting base. A pressure block is provided below the connecting base. An upward concave arc surface is constructed on the lower end surface of the pressure block at a position corresponding to the two connectors of the coil. The upper end surface of the pressure plate is connected to the lower end of the two guide rods. A buffer spring is fitted on the part of each guide rod that extends out of the upper end of the connecting base. The lower end of the buffer spring is fixedly connected to the connecting base. A connecting ring is fixedly connected to the upper end of the buffer spring. The connecting ring is fitted on the guide rod. An adjusting nut is threadedly connected to the upper end of the guide rod. The lower end surface of the adjusting nut abuts against the upper end surface of the connecting ring.

[0013] Furthermore, the suction-type pressure plate assembly includes a pressure plate body and an inner suction cup disposed within an outer suction cup. The upper end of the inner suction cup is closed, and its upper end is connected to the upper inner wall of the outer suction cup via multiple connecting strips, forming an air guide channel between the outer and inner suction cups. A first elastic telescopic portion and a second elastic telescopic portion are respectively constructed at the lower parts of the outer and inner suction cups. The pressure plate body includes an outer plate body and an inner plate body disposed within the outer plate body. The outer and inner plate bodies are respectively connected to the lower ends of the outer and inner suction cups, forming an air intake chamber between them. The lower end surface of the outer plate body is constructed with... An adsorption wall has multiple rings of adsorption holes arranged radially on it. Each ring of adsorption holes includes multiple adsorption holes evenly arranged circumferentially along the adsorption wall. An adjustment column is provided at the center of the outer and inner discs. The adjustment column is connected to an air intake adjustment plate. The air intake adjustment plate is located in the air intake chamber, and the lower end face of the air intake adjustment plate is in close contact with the upper surface of the adsorption wall. Multiple rings of adjustment holes are arranged radially on the air intake adjustment plate. Each ring of adjustment holes includes multiple adjustment holes evenly arranged circumferentially along the air intake adjustment plate. A second air intake channel connecting each air guide channel is provided on the top mounting plate.

[0014] Furthermore, the feeding mechanism includes a crossbeam disposed above the workbench, a transverse guide rail connected to the lower end of the crossbeam via a vertically disposed first cylinder, a linear motor slidably connected to the transverse guide rail, a strip-shaped connecting plate extending along the movement direction of the multi-coil feeding mechanism connected to the lower end of the linear motor, a plurality of picking suction cups spaced apart along the length of the lower end of the strip-shaped connecting plate, and a suction hose communicating with each picking suction cup via the strip-shaped connecting plate.

[0015] The present invention, by employing the aforementioned structure, achieves a technological advancement compared to existing technologies in the following ways: The feeding mechanism of the present invention evenly places multiple coils to be tested onto a multi-coil feeding mechanism, which then fixes the coils, preventing them from detaching during the movement of the multi-coil feeding mechanism. When the multi-coil feeding mechanism moves directly below the detection unloading mechanism, it controls the detection unloading mechanism to move downwards, causing it to elastically press down on all the coils. After the elastic pressing is complete, the coils are simultaneously detected. Upon completion of the detection, the detection unloading mechanism... The coils are adsorbed and rise. After rising, the driving detection and unloading mechanism moves to the end away from the loading mechanism and places the detected coils on the collection platform. Then, both the detection and unloading mechanism and the multi-coil loading mechanism return to their initial positions, and the loading mechanism performs the next loading operation, thus realizing continuous detection. In summary, this invention replaces manual detection or single machine detection, realizing batch detection of coils. The coils will not shift or detach during the transfer and detection process on the multi-coil loading mechanism, ensuring accurate alignment between the detection and unloading mechanism and the coils, thereby improving the detection efficiency and accuracy of the coils. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of the workbench, multi-coil material feeding mechanism, and detection and unloading mechanism according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A structural diagram from another angle;

[0020] Figure 3 This is a schematic diagram of the connection between the multi-coil feeding mechanism and the worktable in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of two material feeding units according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of one of the two material feeding units in an embodiment of the present invention after disassembly;

[0023] Figure 6 This is a schematic diagram of the structure of the material feeding unit and probe socket arranged on the bottom mounting plate according to an embodiment of the present invention;

[0024] Figure 7This is a schematic diagram of the connection between the probe insert and the strip conductive plate in an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Structural side view;

[0026] Figure 9 This is a schematic diagram of the structure of the feeding mechanism of the present invention located above the multi-coil feeding mechanism;

[0027] Figure 10 for Figure 9 Enlarged view of the structure at part A in the middle;

[0028] Figure 11 This is a schematic diagram of the structure of the material feeding mechanism according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the probe module and elastic pressing assembly according to an embodiment of the present invention;

[0030] Figure 13 This is a front view of the structure of the elastic compression component according to an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the structure of the suction-type pressure plate assembly according to an embodiment of the present invention;

[0032] Figure 15 This is an axial structural cross-sectional view of the suction-type pressure plate assembly according to an embodiment of the present invention;

[0033] Figure 16 This is a partial structural cross-sectional view of the suction-type pressure plate assembly according to an embodiment of the present invention;

[0034] Figure 17 This is a schematic diagram of the disassembled structure of the suction pressure plate assembly according to an embodiment of the present invention.

[0035] Components labeled: 100-Workbench, 101-Slide rail, 200-Multi-coil material feeding mechanism, 201-Bottom mounting plate, 202-Suction chamber, 203-First suction channel, 204-Slide rail, 205-Adjusting disc, 206-Suction channel, 207-Pressure plate, 208-Assembly port, 209-Support port, 210-Elastic adjusting ring, 211-Restricting piece, 212-Connecting pipe, 213-Suction main pipe, 214-Second cylinder, 300-Probe socket, 301-Fixing base 302-Strip conductive plate, 303-Probe insert, 3031-Metal plug sleeve, 3032-Connecting flange, 3033-Tightening part, 3034-Strip opening, 400-Coil, 500-Detection and unloading mechanism, 501-Top mounting plate, 502-Suction type pressure plate assembly, 5021-Outer suction cup, 5022-Inner suction cup, 5023-Connecting strip, 5024-Air guide channel, 5025-First elastic telescopic part, 5026-Second elastic telescopic part, 5027-Pressure... Disc body, 50271-Outer disc, 50272-Inner disc, 50273-Adsorption wall, 50274-Adsorption hole, 5028-Adjusting column, 50281-Operating hole, 5029-Suction adjustment disc, 50291-Adjusting hole, 503-Probe module, 5031-Probe mounting base, 5032-Detection probe, 504-Elastic pressing assembly, 5041-Pressure block, 5042-Upper concave arc surface, 5043-Guide rod, 5044-Buffer spring, 5045-Connector Ring, 5046-Adjusting nut, 505-Mounting port, 506-Limiting flange, 507-Connecting seat, 508-Second suction channel, 600-Longitudinal guide rail, 601-Third cylinder, 602-Adapter plate, 603-Connecting leg, 604-Fourth cylinder, 700-Crossbeam, 701-First cylinder, 702-Transverse guide rail, 703-Linear motor, 704-Strip connecting plate, 705-Connector tube, 706-Handling suction cup, 707-Suction hose, 800-Discharge platform. Detailed Implementation

[0036] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0037] This invention discloses a wireless charging testing device, such as... Figure 1-17As shown, the invention includes a worktable 100, a multi-coil feeding mechanism 200, a detection and unloading mechanism 500, and a loading mechanism. The worktable 100 is horizontally positioned, and the multi-coil feeding mechanism 200 is slidably mounted on the worktable 100. Second cylinders 214 are respectively installed on both sides of the multi-coil feeding mechanism 200. These two second cylinders 214 operate synchronously, thereby driving the multi-coil feeding mechanism 200 to reciprocate on the worktable 100. The detection and unloading mechanism 500 and the loading mechanism are both located above the worktable 100 and are spaced apart along the direction of movement of the multi-coil feeding mechanism 200. A discharge platform 800 is provided on one side of the worktable 100, corresponding to the loading mechanism; that is, the discharge platform 800 is located on one side of the loading mechanism. The working principle and advantages of this invention are as follows: The coils 400 to be tested are arranged in a row on the feeding platform 800. The feeding mechanism picks up these coils 400 and places them on the multi-coil feeding mechanism 200. The multi-coil feeding mechanism 200 fixes the coils 400, thus preventing the coils 400 from detaching from the multi-coil feeding mechanism 200 during its movement. When the multi-coil feeding mechanism 200 moves directly below the detection unloading mechanism 500, it controls the detection unloading mechanism 500 to move downwards, causing it to elastically press down on all the coils 400. After the elastic pressing is complete, the coils 400 are simultaneously detected. After the detection is completed, the detection unloading mechanism 500... The coil 400 is attracted and lifted. After lifting, the detection and unloading mechanism 500 is driven to move away from the loading mechanism and place the tested coils 400 on the collection platform. Then, the detection and unloading mechanism 500 and the multi-coil loading mechanism 200 return to their initial positions, and the loading mechanism performs the next loading operation, thus realizing continuous detection. In summary, this invention replaces manual detection or single machine detection to realize batch detection of coils 400. The coils 400 will not shift or detach during the transfer and detection process on the multi-coil loading mechanism 200, ensuring accurate alignment between the detection and unloading mechanism 500 and the coils 400, thereby improving the detection efficiency and accuracy of the coils 400.

[0038] As a preferred embodiment of the present invention, such as Figure 3-5As shown, the multi-coil feeding mechanism 200 includes a bottom mounting plate 201 and multiple feeding units. Multiple slide rails 204 are horizontally arranged at the lower end of the bottom mounting plate 201. The upper surface of the worktable 100 has the same number of slide tracks 101 as the slide rails 204. Each slide rail 204 is fitted into a corresponding slide track 101, and the connection between the slide rail 204 and the slide track 101 achieves a sliding connection between the bottom mounting plate 201 and the worktable 100. In this embodiment, the multiple feeding units are evenly arranged on the bottom mounting plate 201, and each feeding unit is used to accommodate one coil 400. In this embodiment, the coils 400 are placed in batches on the feeding units by the feeding mechanism. The specific structure of the feeding unit in this embodiment is as follows: the feeding unit includes an air suction chamber 202, an adjusting plate 205, and a pressure plate 207. The air suction chamber 202 is located on the upper surface of the bottom mounting plate 201. Multiple first air suction channels 203 are provided on the bottom mounting plate 201, and the first air suction channels 203 connect to the air suction chambers 202 located in the same row, such as... Figure 9-10As shown, multiple connecting pipes 212 are connected to one end of the bottom mounting plate 201. These connecting pipes 212 are respectively connected to the corresponding first suction channel 203, and these connecting pipes 212 are connected to the main suction pipe 213, which is connected to a rubber hose. In this embodiment, the adjusting plate 205 is disposed at the upper end of the suction chamber 202. Suction channels 206 are uniformly constructed along its circumference on the adjusting plate 205, and each suction channel 206 is correspondingly disposed to the lower surface of the coil 400. When the model of the coil 400 to be tested is changed, if the suction channel 206 does not correspond to the lower surface of the coil 400, it is necessary to replace the adjusting plate 205 with the corresponding model so that the suction channel 206 on the corresponding model adjusting plate 205 corresponds to the lower surface of the coil 400. In this embodiment, the pressure plate 207 is detachably mounted on the upper end of the bottom mounting plate 201. The adjusting plate 205 is located between the bottom mounting plate 201 and the pressure plate 207. An assembly port 208 is provided on the pressure plate 207 at the location of the adjusting plate 205. Two parallel resting ports 209 are provided on the pressure plate 207, each of which is interconnected with the assembly port 208. The coil 400 to be tested is placed inside the assembly port 208, and the two connectors of the coil 400 extend out of the corresponding resting ports 209. In this embodiment, the assembly port 208 is used to restrict the position of the coil 400. By suction, the lower end of the coil 400 is attracted to the upper surface of the adjusting plate 205, and at this time, the two connectors of the coil 400 extend out of the pressure plate 207 through the two resting ports 209. Because the coil 400 in this embodiment is relatively soft, the restriction by the assembly port 208, the resting ports 209, and the adjusting plate 205 prevents the coil 400 from deforming during the testing process. In this embodiment, to accommodate the placement of coils 400 of different models, the size of the mounting opening 208 and the resting opening 209 are adjusted to restrict coils 400 with different radial lengths. Specifically, an elastic adjusting ring 210 is mounted in the mounting opening 208. This elastic adjusting ring 210 has two free ends, and a limiting piece 211 is constructed at each of the two free ends. When the elastic adjusting ring 210 is mounted in the mounting opening 208, its outer circumferential surface elastically expands and tightens against the circumferential surface of the mounting opening 208, thereby changing the diameter of the mounting opening 208. Furthermore, each limiting piece 211 engages with the corresponding resting opening 209, thereby changing the diameter of the resting opening 209. This ensures that the outer circumference of the coil 400 is restricted by the elastic adjusting ring 210, and the connection of the coil 400 is restricted by the reduced-diameter resting opening 209, preventing the coil 400 and its connection from shifting.

[0039] In a preferred embodiment of the present invention, to ensure that each detection probe 5032 on the detection feeding mechanism 500 makes full contact with the corresponding connector of the coil 400, thereby improving detection accuracy and avoiding poor contact, the specific means are as follows: Figure 6-8 As shown, probe sockets 300 are respectively provided on one side of the pressure plate 207 and at each material placement unit. Each probe socket 300 includes a fixing base 301, a strip conductive plate 302, and a probe insert 303. The fixing base 301 is fixedly connected to the bottom mounting plate 201. Two strip conductive plates 302 are fixed to the upper surface of the fixing base 301, and each strip conductive plate 302 is positioned corresponding to the placement opening 209. The two connectors of the coil 400 extend out of the two placement openings 209 and are tightly attached to the upper surface of the strip conductive plate 302. In this embodiment, two probe inserts 303 are also provided. These two probe inserts 303 are respectively connected to the strip conductive plate 302. Preferably, the probe insert 303 is connected to the end of the strip conductive plate 302 away from the placement opening 209. The specific structure of the probe insert 303 in this embodiment is as follows: Figure 7-8 As shown, the probe insert 303 includes a metal plug sleeve 3031, which is vertically assembled inside the probe socket 300. A connecting flange 3032 is constructed at the upper end of the metal plug sleeve 3031, which is connected and fixed to the upper end face of the probe socket 300. A plurality of strip-shaped openings 3034 are spaced apart along the circumference of the metal plug sleeve 3031. Each strip-shaped opening 3034 extends vertically upward from the lower end of the metal plug sleeve 3031. Furthermore, an inwardly protruding tightening portion 3033 is constructed in the middle of the metal plug sleeve 3031. The working principle of this embodiment is as follows: The detection probe 5032 is inserted into the metal connector sleeve 3031 and gradually extends downwards until it passes the tightening part 3033. At this time, the tightening part 3033 elastically tightens the detection probe 5032, thereby making full contact between the metal connector sleeve 3031 and the detection probe 5032. In this way, the detection probe 5032 achieves electrical connection with the coil 400 through the metal connector sleeve 3031 and the strip conductive plate 302. Furthermore, the tightening part 3033 elastically deforms after contacting the detection probe 5032, avoiding hard wear on the detection probe 5032 and improving its service life.

[0040] As a preferred embodiment of the present invention, such as Figure 11-17As shown, the detection and unloading mechanism 500 includes multiple probe modules 503 and multiple suction-type pressure plate assemblies 502. The probe modules 503 are used to detect the performance of the coil 400. The suction-type pressure plate assemblies 502 have two functions: first, during coil 400 detection, the suction-type pressure plate assemblies 502 press the coil 400 to prevent it from tilting or deviating; second, after coil 400 detection is completed, the suction-type pressure plate assemblies 502 firmly hold the coil 400 in place, and as the detection and unloading mechanism 500 rises and moves, the coil 400 is detached from the multi-coil placement mechanism 200, completing the coil 400 transfer operation. In this embodiment, during coil 400 detection and subsequent transfer operations, or during transfer operations after coil 400 detection, the multi-coil placement mechanism 200 cancels its attachment of the coil 400. In this embodiment, the adsorption of the coil 400 by the multi-coil feeding mechanism 200 mainly occurs during the process of the coil 400 being transferred from the feeding mechanism to the detection and unloading mechanism 500. The purpose is to prevent the coil 400 from becoming misaligned or detaching from its corresponding assembly port 208 during this process. In this embodiment, the probe module 503 and the suction pressure plate assembly 502 are evenly mounted on the top mounting plate 501, and the probe module 503 and the suction pressure plate assembly 502 are arranged in a one-to-one correspondence. When the detection and unloading mechanism 500 and the multi-coil feeding mechanism 200 are aligned vertically, the two connectors of each probe module 503 are aligned with the two connectors of the coil 400 below it; that is, the detection probe 5032 of the probe module 503 is aligned with the metal insertion sleeve 3031, and the suction pressure plate assembly 502 is aligned with the body of the coil 400.

[0041] As a preferred embodiment of the present invention, such as Figure 1 As shown, the probe module 503 includes a probe mounting base 5031 and two detection probes 5032. These two detection probes 5032 are disposed at the lower end of the probe mounting base 5031. The probe mounting base 5031 is mounted on a connecting seat 507. A mounting opening 505 is provided on the top mounting plate 501, and a limiting flange 506 is constructed at the lower end of the mounting opening 505. The connecting seat 507 is connected to the limiting flange 506 via the mounting opening 505. In this embodiment, to ensure that the connector of the coil 400 is pressed tightly onto the corresponding strip conductive plate 302 and to prevent damage to the connector of the coil 400 when compressed, the measure taken is to achieve compression of the connector of the coil 400 through elastic compression. Specifically, as shown... Figure 12-13As shown, an elastic pressing component 504 is provided on one side of the probe mounting base 5031. The elastic pressing component 504 includes a pressing block 5041 and two guide rods 5043. The two guide rods 5043 are inserted side by side into the connecting base 507, and each guide rod 5043 passes through the pressing block 5041 from top to bottom. The pressing block 5041 is located below the connecting base 507. Two concave arc surfaces 5042 are constructed on the lower end surface of the pressing block 5041. These two concave arc surfaces 5042 are respectively arranged opposite to the two connectors of the coil 400. In this embodiment, the upper end face of the pressure block 5041 is connected and fixed to the lower ends of the two guide rods 5043. A buffer spring 5044 is fitted on the part of each guide rod 5043 that extends out of the upper end of the connecting seat 507. The lower end of the buffer spring 5044 is fixedly connected to the connecting seat 507. A connecting ring 5045 is fixedly connected to the upper end of the buffer spring 5044. The connecting ring 5045 is fitted on the guide rod 5043. An adjusting nut 5046 is threadedly connected to the upper end of the guide rod 5043. The lower end face of the adjusting nut 5046 abuts against the upper end face of the connecting ring 5045. The working principle of this embodiment is as follows: the elastic pressing component 504 moves downward with the top mounting plate 501, so that the two concave arc surfaces 5042 of the pressing block 5041 contact the two connectors of the coil 400 respectively. As the pressing block 5041 gradually moves downward, the guide rod 5043 slides upward relative to it, and the buffer spring 5044 is gradually stretched and stores energy, realizing elastic contact between the pressing block 5041 and the connector of the coil 400, avoiding hard contact that could damage the connector of the coil 400. In this embodiment, the upper surface of the strip conductive plate 302 is concave, and the connector of the coil 400 is located in the concave surface, so that the connector of the coil 400 will not detach from the strip conductive plate 302 during the entire detection process. After the detection is completed, the top mounting plate 501 is driven to move upward, the buffer spring 5044 gradually returns to its original position, and then the pressing block 5041 leaves the multi-coil feeding mechanism 200 along with the top mounting plate 501.

[0042] As a preferred embodiment of the present invention, such as Figure 14-17As shown, the suction-type pressure plate assembly 502 includes a pressure plate body 5027, an outer suction cup 5021, and an inner suction cup 5022. The inner suction cup 5022 is coaxially disposed inside the outer suction cup 5021. The upper end of the inner suction cup 5022 is closed, and the upper end of the inner suction cup 5022 is connected to the upper inner wall of the outer suction cup 5021 through multiple connecting strips 5023. An air passage is formed between the connecting strips 5023, and an air guide channel 5024 is formed between the outer suction cup 5021 and the inner suction cup 5022. The air passage is connected to the air guide channel 5024. In this embodiment, to prevent damage to the coil 400 when the suction-type pressure plate assembly 502 presses down on the coil 400, a first elastic telescopic part 5025 is constructed at the lower part of the outer suction cup 5021, and a second elastic telescopic part 5026 is constructed at the lower part of the inner suction cup 5022. When the pressure plate body 5027 presses on the coil 400, the first elastic telescopic part 5025 and the second elastic telescopic part 5026 are simultaneously elastically compressed, thereby playing a buffering role and preventing the pressure plate body 5027 from making hard contact with the coil 400 and damaging the coil 400. The specific structure of the pressure plate body 5027 in this embodiment is as follows: the pressure plate body 5027 includes an outer plate body 50271 and an inner plate body 50272, wherein the inner plate body 50272 is disposed inside the outer plate body 50271. The outer plate body 50271 is connected to the lower end of the outer suction cup 5021, and the inner plate body 50272 is connected to the lower end of the inner suction cup 5022, forming a suction chamber between the outer plate body 50271 and the inner plate body 50272. The lower end face of the outer plate body 50271 in this embodiment is constructed with an adsorption wall 50273, and multiple sets of adsorption holes 50274 are formed radially on the adsorption wall 50273. Each set of adsorption holes 50274 includes multiple adsorption holes 50274 evenly arranged circumferentially along the adsorption wall 50273. An adjusting column 5028 is provided at the center of the outer disc 50271 and the inner disc 50272. The adjusting column 5028 is connected to a suction adjusting plate 5029. The suction adjusting plate 5029 is located in the suction chamber, and the lower end face of the suction adjusting plate 5029 is in close contact with the upper surface of the adsorption wall 50273. Multiple sets of adjusting holes 50291 are formed radially on the suction adjusting plate 5029. Each set of adjusting holes 50291 includes multiple adjusting holes 50291 evenly arranged around the circumference of the suction adjusting plate 5029. A second suction channel 508 is provided on the top mounting plate, connecting the various air guide channels 5024, thereby realizing the adsorption of the coil 400 by the pressure plate body 5027.In this embodiment, the pressure plate body 5027 can be replaced with different models of coil 400. Alternatively, an Allen wrench can be inserted into the operating hole 50281 at the lower end of the adjusting column 5028 to rotate the adjusting column 5028, causing the suction adjusting plate 5029 to rotate with the adjusting column 5028. This allows the suction adjusting plate 5029 to close the suction holes 50274 that need to be closed and open the suction holes 50274 that need to be opened. That is, the end face of the suction adjusting plate 5029 closes the suction holes 50274 that need to be closed, and some of the adjusting holes 50291 on the suction adjusting plate 5029 are aligned with the suction holes 50274 that need to be opened, thus opening these suction holes 50274. The opened suction holes 50274 correspond to the surface of the coil 400, thus achieving the adsorption of the coil 400.

[0043] As a preferred embodiment of the present invention, such as Figure 9-10As shown, the feeding mechanism includes a crossbeam 700, a transverse guide rail 702, a linear motor 703, and multiple pick-up suction cups, wherein the pick-up suction cups have the same structure as the suction-type pressure plate assembly 502. A crossbeam 700 is positioned above the workbench 100. A first cylinder 701 is mounted on the lower end face of each of the two ends of the crossbeam 700. Each first cylinder 701 is vertically positioned, and the lower ends of the two first cylinders 701 are connected to the two ends of a transverse guide rail 702. A linear motor 703 is slidably connected to the transverse guide rail 702. A strip-shaped connecting plate 704 is connected to the lower end of the linear motor 703. This strip-shaped connecting plate 704 extends along the movement direction of the multi-coil feeding mechanism 200. Multiple connector tubes 705 are spaced apart along the length of the lower end of the strip-shaped connecting plate 704. Each connector tube 705 is connected to a retrieval suction cup 706. A suction hose 707 communicates with each connector tube 705 through a channel within the strip-shaped connecting plate 704, thus enabling communication between the suction hose 707 and each retrieval suction cup 706. The working principle of this invention is as follows: The linear motor 703 drives the strip connecting plate 704 to move directly above the feeding platform 800. Then, the first cylinder 701 drives the strip connecting plate 704 to move downward, so that the pick-up suction cup 706 contacts the coil to be tested 400 on the feeding platform 800. Then, the pick-up suction cup 706 firmly picks up the corresponding coil 400. Then, the first cylinder 701 drives the strip connecting plate 704 to move upward a certain distance. After that, the linear motor 703 drives the strip connecting plate 704 to move above the multi-coil feeding mechanism 200. Then, the first cylinder 701 is controlled to drive the strip connecting plate 704 to move downward, so that the pick-up suction cup 706 places the coil 400 at the predetermined position of the multi-coil feeding mechanism 200. In this embodiment, the feeding platform 800 is provided with mounting grooves at intervals along its longitudinal direction. The mounting grooves have two notches. The mounting grooves have the same shape as the assembly opening 208, and the notches have the same structure as the placement opening 209. An elastic adjustment ring 210 with a limiting piece 211 can also be installed in the mounting groove to accommodate different types of coils. In this embodiment, due to the limitation of the mounting grooves and notches, the coil 400 is placed stably on the feeding platform 800, so that the coil 400 will not be displaced after the feeding mechanism transfers the coil 400 to the multi-coil feeding mechanism 200.

[0044] As a preferred embodiment of the present invention, such as Figure 1-2As shown, a longitudinal guide rail 600 is provided above the detection and unloading mechanism 500. The longitudinal guide rail 600 is connected to the adapter plate 602 via a third cylinder 601. The third cylinder 601 is vertically arranged. The adapter plate 602 is connected to the detection and unloading mechanism 500 via multiple connecting legs 603. A fourth cylinder 604 is installed at the lower end of the worktable 100 and is connected to the detection and unloading mechanism 500. The third cylinder 601 drives the detection and unloading mechanism 500 to rise and fall, enabling the detection and unloading mechanism 500 to detect the coil 400, and the suction-type pressure plate assembly 502 to remove the detected coil 400 from the multi-coil placement mechanism 200. The fourth cylinder 604 is used to drive the detection and unloading mechanism 500 to leave the worktable 100, thereby enabling the suction-type pressure plate assembly 502 to transfer the detected coil 400.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 claims of the present invention.

Claims

1. A wireless charging testing device, characterized in that: The device includes a horizontally positioned workbench, on which a multi-coil feeding mechanism is driven to reciprocate. Above the workbench, along the direction of movement of the multi-coil feeding mechanism, a detection and feeding mechanism and a feeding mechanism are spaced apart. A feeding platform is located on one side of the workbench, corresponding to the feeding mechanism. The multi-coil feeding mechanism includes a bottom mounting plate slidably connected to the upper surface of the workbench. Multiple feeding units are evenly arranged on the bottom mounting plate, and coils are batch-placed onto these feeding units by the feeding mechanism. Each feeding unit includes an air intake chamber formed on the upper surface of the bottom mounting plate. A first suction channel connecting each suction chamber is provided. An adjustment plate is provided at the upper end of each suction chamber. Suction channels are uniformly constructed along the circumference of the adjustment plate, and each suction channel is correspondingly arranged to the lower surface of the coil. A pressure plate is detachably mounted on the upper end of the bottom mounting plate. The adjustment plate is located between the bottom mounting plate and the pressure plate. An assembly port is provided on the pressure plate at the location of the adjustment plate. Two parallel resting ports are provided on the pressure plate, and each resting port is connected to the assembly port. The coil is placed in the assembly port, and the two connectors of the coil extend out of the corresponding resting ports. The detection and feeding mechanism includes multiple probe modules and multiple suction-type pressure plate assemblies. The probe modules and suction pressure plate assemblies are evenly mounted on the top assembly plate, with each probe module and suction pressure plate assembly corresponding to the other. When the detection feeding mechanism and the multi-coil feeding mechanism are aligned vertically, the two connectors of each probe module and the corresponding coil below it are aligned, and the suction pressure plate assembly is aligned with the coil. Each probe module includes a probe mounting base with two detection probes at its lower end. The probe mounting base is mounted on a connecting base. An installation opening is provided on the top assembly plate, and a limiting flange is constructed at the lower end of the installation opening. The connecting base is connected to the limiting flange via the installation opening. An elastic pressing component is provided on one side of the base. The elastic pressing component includes two guide rods inserted side by side into the connecting base. A pressure block is provided below the connecting base. On the lower end surface of the pressure block, at positions corresponding to the two connectors of the coil, an upward concave arc surface is constructed. The upper end surface of the pressure plate is connected to the lower end of the two guide rods. A buffer spring is fitted on the part of each guide rod that extends out of the upper end of the connecting base. The lower end of the buffer spring is fixedly connected to the connecting base. A connecting ring is fixedly connected to the upper end of the buffer spring. The connecting ring is fitted onto the guide rod. An adjusting nut is threadedly connected to the upper end of the guide rod. The lower end surface of the adjusting nut abuts against the upper end surface of the connecting ring.

2. The wireless charging testing device according to claim 1, characterized in that: An elastic adjusting ring with two free ends is fitted into the assembly port. The outer circumferential surface of the elastic adjusting ring is elastically expanded to the circumferential surface of the assembly port. A limiting piece is constructed at each of the two free ends of the elastic adjusting ring, and each limiting piece is snapped into the corresponding resting opening.

3. The wireless charging testing device according to claim 1, characterized in that: A probe socket is provided on one side of the pressure plate and at each material placement unit. The probe socket includes a fixed base connected to the bottom mounting plate. A strip conductive plate is provided on the upper surface of the fixed base and corresponding to each placement opening. A probe insert is constructed at the end of the strip conductive plate away from the placement opening. The probe insert includes a metal plug sleeve vertically assembled in the probe socket. A connecting flange is constructed at the upper end of the metal plug sleeve and connected to the upper surface of the probe socket. Multiple strip openings are spaced apart along the circumference of the metal plug sleeve. Each strip opening extends vertically upward from the lower end of the metal plug sleeve. An inwardly protruding tightening part is constructed in the middle of the metal plug sleeve.

4. The wireless charging testing device according to claim 1, characterized in that: The suction-type pressure plate assembly includes a pressure plate body and an inner suction plate disposed within an outer suction plate. The upper end of the inner suction plate is closed, and its upper end is connected to the upper inner wall of the outer suction plate via multiple connecting strips, forming an air guiding channel between the outer and inner suction plates. A first elastic telescopic portion and a second elastic telescopic portion are respectively constructed at the lower parts of the outer and inner suction plates. The pressure plate body includes an outer plate body and an inner plate body disposed within the outer plate body. The outer and inner plate bodies are respectively connected to the lower ends of the outer and inner suction plates, forming an air suction chamber between them. An adsorption wall is constructed on the lower end surface of the outer plate body. Multiple rings of adsorption holes are formed radially on the adsorption wall. Each ring of adsorption holes includes multiple adsorption holes evenly arranged circumferentially along the adsorption wall. An adjustment column is provided at the center of the outer and inner discs. The adjustment column is connected to an air intake adjustment plate. The air intake adjustment plate is located in the air intake chamber, and the lower end face of the air intake adjustment plate is in close contact with the upper surface of the adsorption wall. Multiple rings of adjustment holes are formed radially on the air intake adjustment plate. Each ring of adjustment holes includes multiple adjustment holes evenly arranged circumferentially along the air intake adjustment plate. A second air intake channel connecting each air guide channel is provided on the top mounting plate.

5. The wireless charging testing device according to claim 1, characterized in that: The feeding mechanism includes a crossbeam mounted above the workbench. A horizontal guide rail is connected to the lower end of the crossbeam via a vertically mounted first cylinder. A linear motor is slidably connected to the horizontal guide rail. A strip-shaped connecting plate extending along the movement direction of the multi-coil feeding mechanism is connected to the lower end of the linear motor. Multiple picking suction cups are spaced apart along the length of the strip-shaped connecting plate at its lower end. A suction hose communicates with each picking suction cup via the strip-shaped connecting plate.

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