Wireless charging module production line and production process

Abstract

The application discloses a wireless charging module production line and a production process, which comprise: a turntable, a plurality of first carriers are circumferentially distributed on the turntable, the first carriers are used for carrying wireless charging modules, and the outer side of the turntable is sequentially provided with a feeding device, a height measuring group, an electrical measuring group and a discharging device along the rotation direction of the turntable; the feeding device is used for carrying the wireless charging modules to be detected to the first carriers; the height measuring group comprises two groups of distance measuring sensors, the two groups of distance measuring sensors are respectively used for detecting the height of the upper surface of a coil assembly and the upper surface of a magnetic plate of the wireless charging module, and the difference between the detection values of the two groups of distance measuring sensors is the height of the coil assembly on the magnetic plate; the electrical measuring group is used for detecting the electrical characteristics of the wireless charging module; and the discharging device is used for discharging the wireless charging modules on the first carriers. The height measuring group and the electrical measuring group replace manual height measurement and electrical characteristic detection, and are favorable for improving detection efficiency and detection precision.

Description

Technical Field

[0001] This invention relates to the field of wireless charging module technology, and in particular to a wireless charging module testing device, production line, and manufacturing process. Background Technology

[0002] A wireless charging module production line is a production line for manufacturing / assembling / assembling wireless charging modules. Wireless charging modules are typically thin (small in thickness) and are key devices for enabling wireless charging of electronic products. A wireless charging module mainly consists of a magnetic plate, a coil assembly, and adhesive strips. The coil assembly is connected to the magnetic plate, and the coil lines are soldered to pins on the adhesive strips. The produced wireless charging modules require visual inspection, coil assembly height inspection, and electrical characteristic testing. Currently, multi-station inspection of wireless charging modules is typically conducted using a combination of equipment and manual labor. This requires high standards of worker operation, but the heavy workload and high fatigue levels lead to lower inspection accuracy and a higher error rate. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wireless charging module detection device with high detection efficiency and high detection accuracy.

[0004] The present invention also proposes a wireless charging module production line having the above-mentioned wireless charging module testing device.

[0005] The present invention also proposes a wireless charging module manufacturing process applicable to the above-mentioned wireless charging module production line.

[0006] According to a first aspect of the present invention, a wireless charging module testing device includes: a turntable with a plurality of first carriers distributed circumferentially, the first carriers being used to horizontally support wireless charging modules; a loading device, a height measuring group, an electrical measuring group, and a unloading device being sequentially arranged on the outer side of the turntable along the rotation direction of the turntable; the loading device being used to transport the wireless charging module to be tested to the first carriers; the height measuring group including two sets of distance measuring sensors, the two sets of distance measuring sensors being used to detect the height of the upper surface of the coil assembly of the wireless charging module and the upper surface of the magnetic plate of the wireless charging module, the difference between the detection values ​​of the two sets of distance measuring sensors being the height of the coil assembly on the magnetic plate; the electrical measuring group being used to detect the electrical characteristics of the wireless charging module; and the unloading device being used to unload the wireless charging module from the first carriers after the wireless charging module has been tested.

[0007] It has at least the following beneficial effects: The first carrier carries the wireless charging module to be tested to the area of ​​the corresponding height measurement group, allowing the height measurement group to measure the height of the wireless charging module. Then, the first carrier carries the height-measured wireless charging module to the area of ​​the corresponding electrical testing group, allowing the electrical testing group to perform electrical characteristic testing on the wireless charging module. If both the height measurement and electrical characteristic testing are qualified, a qualified wireless charging module is obtained. The height measurement by the height measurement group and the electrical characteristic testing by the electrical testing group replace manual height measurement and electrical characteristic testing, which improves testing efficiency and accuracy. Two sets of distance sensors measure the height of the wireless charging module on the first carrier. The difference between the detection values ​​of the two sets of distance sensors is the height of the coil assembly on the magnetic plate. Even if the heights of the wireless charging modules on each first carrier are not consistent, it will not affect the accuracy of detecting the height of the coil assembly on the magnetic plate, thus ensuring the accuracy of height measurement for a large number of wireless charging modules.

[0008] According to some embodiments of the present invention, the feeding device includes a feeding conveyor belt and a plurality of second carriers evenly arranged on the feeding conveyor belt. The second carriers are used to carry the wireless charging module. The feeding device also includes a first horizontal drive mechanism, a first lifting drive mechanism disposed on the output end of the first horizontal drive mechanism, and two first grippers disposed on the output end of the first lifting drive mechanism, which are connected in sequence. The first horizontal drive mechanism and the first lifting drive mechanism drive the two first grippers to move so that the two first grippers can be used to clamp the magnetic plate and the adhesive strip of the wireless charging module respectively.

[0009] According to some embodiments of the present invention, three wire-cutting mechanisms are further provided between the feeding device and the height measuring group. Each wire-cutting mechanism includes a second lifting drive mechanism, a second horizontal drive mechanism, and scissors connected in sequence. The second lifting drive mechanism and the second horizontal drive mechanism respectively drive the scissors to move in the vertical and horizontal directions, so that the scissors can cut the wire ends corresponding to the coils on the wireless charging module on the first carrier.

[0010] According to some embodiments of the present invention, an appearance inspection mechanism is further provided between the wire cutting mechanism and the height measuring group. The appearance inspection mechanism includes a first CCD camera, a second CCD camera, and a supplementary light. The supplementary light is used to provide supplementary lighting for the wireless charging module on the first carrier on the turntable. The first CCD camera is horizontally oriented towards the wireless charging module on the first carrier, and the second CCD camera is vertically oriented towards the wireless charging module to obtain images of the wire end and the welding area between the wire end and the pins on the adhesive strip.

[0011] According to some embodiments of the present invention, a first defective product unloading device is further provided between the height measuring group and the appearance inspection mechanism. The first defective product unloading device includes a first defective product collection tank and a third horizontal drive mechanism, a third lifting drive mechanism and a second gripper connected in sequence. The second gripper is used to hold the wireless charging module that fails the appearance inspection mechanism to transport the wireless charging module to the first defective product collection tank.

[0012] According to some embodiments of the present invention, the height measuring group further includes a fourth lifting drive mechanism. The output end of the fourth lifting drive mechanism is connected to two sets of the distance measuring sensors. The detection end of one set of the distance measuring sensors is connected to a pressure plate. The lower surface of the pressure plate and the detection end of the other set of the distance measuring sensors are at the same horizontal plane. The pressure plate can abut against the upper surface of the coil assembly of the wireless charging module, and the detection end of the other set of the distance measuring sensors can abut against the upper surface of the magnetic plate of the wireless charging module.

[0013] According to some embodiments of the present invention, the electrical test group includes a fourth horizontal drive mechanism and a plurality of probes disposed on the output end of the fourth horizontal drive mechanism, the fourth horizontal drive mechanism being used to drive the probes to abut against the wire end of the wireless charging module on the first carrier.

[0014] According to some embodiments of the present invention, the unloading device includes a transfer and flipping mechanism and a tray-stacking mechanism. The transfer and flipping mechanism is used to receive the wireless charging module on the first carrier and flip the wireless charging module to an upright state. The tray-stacking mechanism is used to unload the wireless charging module from the transfer and flipping mechanism and place it on a tray.

[0015] According to a second aspect of the present invention, a wireless charging module production line includes: the aforementioned wireless charging module testing device; and further includes a coil assembly device, a drying device, a wire end processing device, and a finished product assembly device. The coil assembly device, the drying device, the wire end processing device, the finished product assembly device, and the feeding device are arranged sequentially. The coil assembly device is used to bond two coils side by side to a magnetic plate and to bond a third coil to the two coils to obtain a coil assembly. The drying device is used to bake the coil assembly. The wire end processing device is used to straighten and solder the wire ends of the coil assembly. The finished product assembly device is used to solder the pins on the adhesive strip to the wire ends of the coil assembly to obtain the wireless charging module. The feeding device is used to transport the wireless charging module to the first carrier of the turntable.

[0016] It has at least the following beneficial effects: The wireless charging module production line can complete the production and testing of wireless charging modules. By sequentially setting up coil assembly equipment, drying equipment, wire end processing equipment, finished product assembly equipment and wireless charging module testing equipment, the various processes of wireless charging module production are connected, which helps to improve the efficiency of wireless charging module production, reduce manual work, and improve the quality of wireless charging modules.

[0017] The wireless charging module manufacturing process according to a third aspect of the present invention, applicable to the aforementioned wireless charging module production line, includes the following steps: Two sets of circular adhesive are applied to a magnetic plate, and then two coils are attached to the two sets of circular adhesive respectively. Next, dotted adhesive is applied to the two opposite halves of the two coils, and a third coil is attached to the dotted adhesive to obtain a coil assembly. Dry the glue; The wire ends of the coil assembly are tidied and soldered. Solder the thread end and the pins on the tape together; The temperature sensing wire is soldered onto the coil assembly to obtain a wireless charging module; The appearance of the wireless charging module is inspected, the height of the coil assembly on the magnetic plate is checked, and the electrical characteristics of the coil assembly are tested. Qualified finished products are then arranged on trays and packaged.

[0018] It has at least the following beneficial effects: the structure of the wireless charging module is relatively simple, and the manufacturing process involves fewer and simpler steps.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the wireless charging module structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the wireless charging module detection device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the wireless charging module detection device after the material feeding device is hidden, according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the height measurement group of the wireless charging module detection device according to an embodiment of the present invention; Figure 5 This is a partial structural diagram of the unloading device of the wireless charging module testing device according to an embodiment of the present invention; Figure 6This is a schematic diagram of the wireless charging module production line according to an embodiment of the present invention; Icon labels: Wireless charging module 1, coil 11, coil assembly 110, wire end 111, magnetic plate 12, adhesive strip 13, temperature sensing wire 14; Frame 2, First defective product unloading device 21, First defective product collection tank 211, Third horizontal drive mechanism 212, Third lifting drive mechanism 213, Second gripper 214, Coil assembly assembly device 22, Drying device 23, Wire end processing device 24, Finished product assembly device 25; Turntable 3, First Vehicle 31; Feeding device 4, feeding conveyor belt 41, second carrier 411, first horizontal drive mechanism 42, first lifting drive mechanism 43, first gripper 44; Altitude measuring group 5, distance measuring sensor 51, fourth lifting drive mechanism 52, pressure plate 53; Electrical measurement group 6, fourth horizontal drive mechanism 61, probe 62; The following components are included: feeding device 7, transfer and flipping mechanism 71, sixth horizontal drive mechanism 711, second rotary drive mechanism 712, fourth gripper 713, fifth horizontal drive mechanism 714, fifth lifting drive mechanism 715, third gripper 716, third defective product collection trough 717, tray mechanism 72, seventh horizontal drive mechanism 721, tray 722, eighth horizontal drive mechanism 723, sixth lifting drive mechanism 724, and fifth gripper 725. 8. Thread trimming mechanism; 81. Second lifting drive mechanism; 82. Second horizontal drive mechanism; 83. Scissors; Appearance inspection unit 9, first CCD camera 91, second CCD camera 92, supplementary light 93. Detailed Implementation

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 The wireless charging module 1 includes a magnetic plate 12, an adhesive strip 13, and three coils 11. Two coils 11 are attached to the magnetic plate 12, and the third coil 11 is attached to two of the coils 11. The three coils 11 form a coil assembly 110. The three coils 11 have a total of six wire ends 111, which are arranged side by side and connected to multiple pins on the adhesive strip 13. The wireless charging module detection device can cut the six wire ends 111, detect the height difference between the upper surface of the coil assembly 110 and the upper surface of the magnetic plate 12, and detect the electrical characteristics of the three coils 11. It should be noted that the height measurement of the wireless charging module 1 refers to measuring the height difference between the upper surface of the coil assembly 110 (specifically the upper surface of the third coil 11 at the highest position) and the upper surface of the magnetic plate 12. The height difference between the upper surface of the coil assembly 110 and the upper surface of the magnetic plate 12 varies in different types of wireless charging modules 1.

[0025] Reference Figures 2 to 5 This invention discloses a wireless charging module testing device, including a frame 2 and a first rotary drive mechanism, a turntable 3, a loading device 4, a height measuring group 5, an electrical measuring group 6, and a unloading device 7, all mounted on the frame 2. The turntable 3 is rotatably connected to the frame 2, and the output end of the first rotary drive mechanism is drively connected to the turntable 3. The first rotary drive mechanism is used to drive the turntable 3 to rotate on a horizontal plane. The loading device 4, height measuring group 5, electrical measuring group 6, and unloading device 7 are all located on the outer side of the turntable 3, and are arranged sequentially along the rotation direction of the turntable 3. The turntable 3 is annular, and a circular fixed plate is provided on the frame 2. The fixed plate passes through the central hole of the turntable 3 and extends above the turntable 3.

[0026] The turntable 3 has multiple first carriers 31 distributed circumferentially. The central angles corresponding to any two adjacent first carriers 31 are equal. The first rotation drive mechanism is used to drive the turntable 3 to rotate intermittently. The angle of each rotation of the turntable 3 is equal to the central angles corresponding to the two adjacent first carriers 31. The first carriers 31 are used to horizontally support the wireless charging module 1. The first carriers 31 play the role of positioning and transporting the wireless charging module 1.

[0027] The loading device 4 is used to transport the wireless charging module 1 to be tested onto the first carrier 31; the height measuring group 5 includes two sets of distance measuring sensors 51, which are used to detect the height of the upper surface of the coil assembly 110 of the wireless charging module 1 (specifically the upper surface of the third coil 11 at the highest position) and the upper surface of the magnetic plate 12 of the wireless charging module 1, respectively. The difference between the detection values ​​of the two sets of distance measuring sensors 51 is the height of the coil assembly 110 on the magnetic plate 12; the electrical measuring group 6 is used to detect the electrical characteristics of the coil 11 of the wireless charging module 1; the unloading device 7 is used to unload the tested wireless charging module 1 from the first carrier 31 after the wireless charging module 1 has been tested.

[0028] When the turntable 3 rotates, it moves the first carrier 31 sequentially to the areas corresponding to the loading device 4, height measuring group 5, electrical measuring group 6, and unloading device 7. The turntable 3 first moves the empty first carrier 31 to the area corresponding to the loading device 4. The loading device 4 then transports the wireless charging module 1 to be tested onto the empty first carrier 31. The first carrier 31, carrying the wireless charging module 1 to be tested, moves to the area corresponding to the height measuring group 5, so that the height measuring group 5 can measure the height of the wireless charging module 1. The two sets of distance sensors 51 in the height measuring group 5 respectively detect the height of the upper surface of the coil assembly 110 and the upper surface of the magnetic plate 12, obtaining the height difference between the upper surface of the coil assembly 110 and the upper surface of the magnetic plate 12. This height difference allows the height of the wireless charging module 1 to be determined. If the height difference is within the design range, the height difference of the wireless charging module 1 is qualified, meaning the height measurement of the wireless charging module 1 is qualified. Then, the first carrier 31 carries the wireless charging module 1 and moves it to the area of ​​the corresponding electrical testing group 6, so that the electrical testing group 6 can perform electrical characteristic testing on the wireless charging module 1, which has been measured and is qualified. When the electrical characteristic test shows that it is qualified, the electrical characteristic test of the wireless charging module 1 is qualified. Immediately afterwards, the first carrier 31 carries the wireless charging module 1 and moves it to the area of ​​the corresponding unloading device 7, so that the unloading device 7 can unload and remove the wireless charging module 1 from the first carrier 31.

[0029] The height measurement group 5 measures the height of the wireless charging module 1, and the electrical measurement group 6 performs electrical characteristic testing on the wireless charging module 1. This replaces manual height measurement and electrical characteristic testing, which helps improve testing efficiency and accuracy. Two sets of distance sensors 51 measure the height of the wireless charging module 1 on the first carrier 31. The difference in the measured values ​​from the two sets of distance sensors 51 is the height of the coil assembly 110 on the magnetic plate 12. Even if the heights of the wireless charging modules 1 on each first carrier 31 are not consistent, it will not affect the accuracy of detecting the height of the coil assembly 110 on the magnetic plate 12, thus ensuring the accuracy of height measurement for a large number of wireless charging modules 1.

[0030] Reference Figures 2 to 3In some embodiments, the feeding device 4 includes a feeding conveyor belt 41 and a plurality of second carriers 411 evenly arranged on the feeding conveyor belt 41. The second carriers 411 are used to carry the wireless charging module 1. The feeding conveyor belt 41 is arranged on the frame 2. The discharge end of the feeding conveyor belt 41 is close to the turntable 3, and the inlet end of the feeding conveyor belt 41 is close to the previous wireless charging module processing equipment or other equipment set at the corresponding feeding station. When the feeding conveyor belt 41 rotates, the feeding conveyor belt 41 drives the plurality of second carriers 411 to move. The previous wireless charging module processing equipment or other equipment set at the corresponding feeding station places the wireless charging module 1 to be tested on the second carrier 411 at the corresponding inlet end. Then the second carrier 411 carries the wireless charging module 1 to be tested and moves it to the position of the corresponding discharge end.

[0031] The feeding device 4 also includes a first horizontal drive mechanism 42, a first lifting drive mechanism 43 located at the output end of the first horizontal drive mechanism 42, and two first grippers 44 located at the output end of the first lifting drive mechanism 43, which are connected in sequence. The first horizontal drive mechanism 42 and the first lifting drive mechanism 43 drive the two first grippers 44 to move synchronously so that the two first grippers 44 can respectively clamp the magnetic plate 12 and the rubber strip 13 of the wireless charging module 1 in the horizontal direction. The two first grippers 44 first move to the area corresponding to the second carrier 411 at the discharge end of the feeding conveyor belt 41. The two first grippers 44 clamp the magnetic plate 12 and the rubber strip 13 of the wireless charging module 1 on the second carrier 411. Then, the two first grippers 44 clamp the wireless charging module 1 and move it to the area of ​​the first carrier 31 corresponding to the turntable 3. Then, the two first grippers 44 place the wireless charging module 1 on the empty first carrier 31. In this way, the feeding device 4 continuously feeds the wireless charging module 1 onto the empty first carrier 31 on the turntable 3.

[0032] It should be noted that the first horizontal drive mechanism 42 is mounted on the frame 2 or a fixed plate on the frame 2. The driving direction of the first horizontal drive mechanism 42 intersects with and is perpendicular to the rotation center of the turntable 3. The two ends of the driving direction of the first horizontal drive mechanism 42 correspond to the first carrier 31 of the turntable 3 and the discharge end of the feeding conveyor belt 41, respectively. The first horizontal drive mechanism 42 is used to drive the first lifting drive mechanism 43 and the two first grippers 44 to move back and forth between the first carrier 31 of the turntable 3 and the discharge end of the feeding conveyor belt 41. The driving direction of the first lifting drive mechanism 43 is vertical or up and down. The first lifting drive mechanism 43 is used to drive the two first grippers 44 to lift.

[0033] Specifically, the discharge end of the feeding conveyor belt 41 and the turntable 3 are distributed to the left and right. The first horizontal drive mechanism 42 is used to drive the first lifting drive mechanism 43 and the two first grippers 44 to move in the left and right direction, so that the two first grippers 44 can be positioned above the discharge end of the feeding conveyor belt 41 and above the first carrier 31 of the turntable 3. From the perspective of looking down at the turntable 3, the turntable 3 rotates in the clockwise direction, and the feeding device 4, the height measuring group 5, the electrical measuring group 6, and the unloading device 7 are distributed in the clockwise direction on the outside of the turntable 3.

[0034] Reference Figure 3 In some embodiments, the wireless charging module detection device further includes three wire-cutting mechanisms 8 disposed between the feeding device 4 and the height measuring group 5. The three wire-cutting mechanisms 8 are respectively used to trim the wire ends 111 of the three coils 11 on the wireless charging module 1.

[0035] The wire-cutting mechanism 8 includes a second lifting drive mechanism 81, a second horizontal drive mechanism 82, and scissors 83 connected in sequence. The second lifting drive mechanism 81 and the second horizontal drive mechanism 82 drive the scissors 83 to move in the vertical and horizontal directions, respectively, so that the scissors 83 can cut the wire ends 111 of the corresponding coils 11 on the wireless charging module 1 on the first carrier 31. The three wire-cutting mechanisms 8 can respectively correspond to the wire ends 111 of one of the coils 11 of the three wireless charging modules 1 on the three first carriers 31. The three wire-cutting mechanisms 8 work simultaneously, and the three wire-cutting mechanisms 8 respectively cut the wire ends 111 of the three coils 11 on the wireless charging module 1, so that after a first carrier 31 passes through the area corresponding to the three wire-cutting mechanisms 8 in sequence, all the wire ends 111 of the wireless charging module 1 on the first carrier 31 are cut off.

[0036] Specifically, the first wire-cutting mechanism 8 corresponds to the wire end 111 of the first coil 11 of the wireless charging module 1 on the first first carrier 31, the second wire-cutting mechanism 8 corresponds to the wire end 111 of the second coil 11 of the wireless charging module 1 on the second first carrier 31, and the third wire-cutting mechanism 8 corresponds to the wire end 111 of the third coil 11 of the wireless charging module 1 on the third first carrier 31.

[0037] The second lifting drive mechanism 81 is mounted on the frame 2 or a fixed plate on the frame 2. The output end of the second lifting drive mechanism 81 is connected to the second horizontal drive mechanism 82, and the output end of the second horizontal drive mechanism 82 is connected to the scissors 83. The scissors 83 are positioned above the moving path of the first carrier 31 on the turntable 3. The driving direction of the second horizontal drive mechanism 82 is perpendicular to the diameter of the turntable 3 corresponding to the position of the second lifting drive mechanism 81. The second lifting drive mechanism 81 drives the second horizontal drive mechanism 82 and the scissors 83 to lift and lower. The second horizontal drive mechanism 82 drives the scissors 83 to move horizontally, so that the scissors 83 are positioned above the wire end 111 of the wireless charging module 1 on the first carrier 31. The scissors 83 can be electric or pneumatic. Commonly available components can be used for the scissors 83.

[0038] Reference Figure 2 In some embodiments, the wireless charging module testing device further includes an appearance inspection mechanism 9 disposed between the wire cutting mechanism 8 and the height measuring group 5. The appearance inspection mechanism 9 is used to detect the cutting condition of the wire end 111 of the wireless charging module 1 and the welding condition of the pins on the wire end 111 and the adhesive strip 13.

[0039] Reference Figure 3 The appearance inspection mechanism 9 includes a first CCD camera 91, a second CCD camera 92, and a supplementary light 93. The supplementary light 93 is used to provide supplementary lighting for the wireless charging module 1 on the first carrier 31. The first CCD camera 91 is horizontally oriented towards the wireless charging module 1 on the first carrier 31, and the second CCD camera 92 is vertically oriented towards the wireless charging module 1 to obtain images of the wire end 111 and the soldering area between the wire end 111 and the pins on the adhesive strip 13. When the first carrier 31 carrying the wireless charging module 1 moves to the corresponding appearance inspection mechanism... When the device is positioned at position 9, the supplementary light 93 provides supplementary lighting to the wireless charging module 1 on the first carrier 31 on the turntable 3, ensuring that each area of ​​the wireless charging module 1 has sufficient illumination, especially the trimmed wire ends 111 and the soldering area between the wire ends 111 and the pins on the adhesive strip 13, so that the first CCD camera 91 and the second CCD camera 92 can take pictures of the wireless charging module 1 from the outside and above, respectively, thereby obtaining images of the wire ends 111 and the soldering area between the wire ends 111 and the pins on the adhesive strip 13.

[0040] After acquiring the image of the wire end 111, the appearance inspection agency 9 can process the image of the wire end 111 through the control system to obtain the inspection image of the wire end 111. Then, the inspection image of the wire end 111 is compared with the image of a qualified wire end 111 sample to obtain the appearance inspection result of the wire end. After acquiring the image of the welding area between the wire end 111 and the pin on the adhesive strip 13, the appearance inspection agency 9 can process the image of the welding area through the control system to obtain the inspection image of the welding area. Then, the inspection image of the welding area is compared with the image of a qualified welding area sample to obtain the appearance inspection result of the welding area.

[0041] Alternatively, the inspection image of wire end 111 can be manually checked to determine whether wire end 111 is qualified, and the inspection image of the welding area can be manually checked to determine whether the welding area is qualified.

[0042] When both the wire end 111 and the welding area pass the inspection, the appearance inspection result of the wireless charging module 1 is qualified.

[0043] The appearance inspection mechanism 9 also includes a first bracket and a second bracket. Both the first bracket and the second bracket are mounted on the frame 2 or a fixed plate on the frame 2. The first CCD camera 91 and the second CCD camera 92 are mounted on the first bracket. The first bracket can adjust the position of the first CCD camera 91 and the second CCD camera 92 as well as the orientation of their lenses. The fill light 93 is mounted on the second bracket. The second bracket can adjust the position of the fill light 93 and the orientation of the light.

[0044] Reference Figure 3 In some embodiments, the wireless charging module testing device further includes a first defective product unloading device 21 disposed between the height measuring group 5 and the appearance inspection mechanism 9. The first defective product unloading device 21 is used to remove the wireless charging module 1 that fails the appearance inspection mechanism 9.

[0045] The first defective product unloading device 21 includes a first defective product collection tank 211 and a third horizontal drive mechanism 212, a third lifting drive mechanism 213 and a second gripper 214 connected in sequence. The third horizontal drive mechanism 212 and the third lifting drive mechanism 213 are used to drive the second gripper 214 to move so that the second gripper 214 can transport the wireless charging module 1 that fails the appearance inspection mechanism 9 to the first defective product collection tank 211.

[0046] The first defective product collection trough 211 is mounted on the frame 2 and located outside the turntable 3. The first defective product unloading device 21 also includes a third support, which is mounted on the frame 2 or a fixed plate on the frame 2. The third support is connected to the third horizontal drive mechanism 212. The two ends of the drive direction of the third horizontal drive mechanism 212 correspond to the first defective product collection trough 211 and the turntable 3, respectively. The output end of the third horizontal drive mechanism 212 is connected to the third lifting drive mechanism 213. The output end of the third lifting drive mechanism 213 is connected to the second gripper 214. The third horizontal drive mechanism 212 is used for driving... The third lifting drive mechanism 213 and the second gripper 214 reciprocate above the first defective product collection tank 211 and above the turntable 3. The third lifting drive mechanism 213 is used to drive the second gripper 214 to lift. When the first carrier 31 carrying the wireless charging module 1 moves to the area corresponding to the first defective product collection tank 211, the third horizontal drive mechanism 212 and the third lifting drive mechanism 213 drive the second gripper 214 to move. The second gripper 214 realizes the transfer of the wireless charging module 1 that has failed the appearance inspection by the appearance inspection mechanism 9 from the first carrier 31 to the first defective product collection tank 211.

[0047] Reference Figure 4 In some embodiments, the height measuring group 5 further includes a fourth lifting drive mechanism 52, which is connected to the frame 2 or a fixed plate on the frame 2. The output end of the fourth lifting drive mechanism 52 is connected to two sets of distance measuring sensors 51. The detection end of one set of distance measuring sensors 51 is connected to a pressure plate 53. At this time, the pressure plate 53 is equivalent to the detection end of one set of distance measuring sensors 51. The lower surface of the pressure plate 53 and the detection end of the other set of distance measuring sensors 51 are at the same level. The pressure plate 53 can abut against the upper surface of the coil assembly 110 of the wireless charging module 1. The detection end of the other set of distance measuring sensors 51 can abut against the upper surface of the magnetic plate 12 of the wireless charging module 1. The pressure plate 53 and the detection end of the other set of distance measuring sensors 51 are above the moving path of the first carrier 31. The fourth lifting drive mechanism 52 is used to drive the two sets of distance measuring sensors 51 and the pressure plate 53 to rise and fall.

[0048] Initially, the fourth lifting drive mechanism 52 drives the two sets of ranging sensors 51 and the pressure plate 53 to rise above the moving path of the first carrier 31, avoiding interference between the two sets of ranging sensors 51 and the pressure plate 53 and the movement of the first carrier 31. When the first carrier 31 carrying the wireless charging module 1 moves to below the pressure plate 53 and the detection end of the other set of ranging sensors 51, the fourth lifting drive mechanism 52 drives the two sets of ranging sensors 51 to descend, so that the pressure plate 53 abuts against the upper surface of the coil assembly 110 of the wireless charging module 1, and the detection end of the other set of ranging sensors 51 abuts against the upper surface of the magnetic plate 12. Then, the height measurement data of the wireless charging module 1 is obtained through the detection values ​​of the two sets of ranging sensors 51. The difference between the height measurement data of the two sets of ranging sensors 51 and the design range value of the wireless charging module 1 is compared to determine whether the wireless charging module 1 is qualified.

[0049] It should be noted that the lower surface of the pressure plate 53 is horizontal and is used to press against the upper surface of the coil assembly 110 (specifically, the upper surface of the third coil 11 at the highest position). The upper surface of the coil assembly 110 is not flat. When the pressure plate 53 presses down on the upper surface of the coil assembly 110, it can flatten the coil assembly 110, simulating the state of the wireless charging module 1 installed inside the housing. This height measurement method is beneficial for accurately measuring the wireless charging module 1. Furthermore, in cases where the wireless charging module 1 is placed at an angle on the first carrier 31, when the pressure plate 53 presses down on the upper surface of the coil assembly 110, it plays a leveling role for the wireless charging module 1, making the magnetic plate 12 and the coil assembly 110 as horizontal as possible, thus improving the accuracy of height measurement.

[0050] It is conceivable that the thickness of the magnetic plate 12, and the height of different magnetic plates 12 on different first carriers 31, may not be fixed. By detecting the height of the coil assembly 110 on the magnetic plate 12 using two sets of synchronously rising and falling ranging sensors 51, the displacement accuracy of the rising and falling motion of the two sets of ranging sensors 51 and the height position accuracy of the wireless charging module 1 at the detection position do not need to be strictly controlled, thus achieving high-precision detection of the height of the coil assembly 110 on the magnetic plate 12. The ranging sensor 51 is a contact ranging sensor.

[0051] The wireless charging module testing device also includes a second defective product unloading device located between the height measurement group 5 and the electrical testing group 6. The second defective product unloading device is used to remove wireless charging modules 1 that fail the height measurement group 5 test from the first carrier 31. The structure and working principle of the second defective product unloading device are the same as or similar to the structure and working principle of the first defective product unloading device 21, and will not be described redundantly here.

[0052] Reference Figure 3In some embodiments, the electrical testing group 6 includes a fourth horizontal drive mechanism 61 and multiple probes 62 disposed on the output end of the fourth horizontal drive mechanism 61. The fourth horizontal drive mechanism 61 is disposed on the frame 2 or a fixed plate on the frame 2. The driving direction of the fourth horizontal drive mechanism 61 intersects with and is perpendicular to the rotation center of the turntable 3. The fourth horizontal drive mechanism 61 is used to drive the probes 62 to abut against the pins of the wireless charging module 1 on the first carrier 31. The probes 62 are electrically connected to the pins of the wireless charging module 1 in order to detect the electrical characteristics of the wireless charging module 1.

[0053] The electrical testing group 6 also includes various testing instruments currently available on the market. The testing instruments are electrically connected to the probe 62 and are used to measure the continuity and resistance of the wireless charging module 1. The model of the testing instrument is not limited here.

[0054] Reference Figure 2 In some embodiments, the unloading device 7 includes a transfer and flipping mechanism 71 and a tray-stacking mechanism 72. The transfer and flipping mechanism 71 receives the wireless charging module 1 on the first carrier 31 and flips the wireless charging module 1 to an upright state. The tray-stacking mechanism 72 unloads the wireless charging module 1 from the transfer and flipping mechanism 71 and places it on a tray. The first carrier 31 carries the wireless charging module 1 and passes through the areas corresponding to the height measuring group 5 and the electrical measuring group 6 in sequence. The height measuring group 5 detects the height of the coil assembly 110 of the wireless charging module 1. Then, the electrical measuring group 6 detects the electrical characteristics of the wireless charging module 1. For wireless charging modules 1 that pass both height measurement and electrical characteristics, the transfer and flipping mechanism 71 receives the wireless charging module 1 on the first carrier 31 that passes both height measurement and electrical characteristics. The transfer and flipping mechanism 71 drives the wireless charging module 1 to flip from a horizontal state to a vertical state. Finally, the tray-stacking mechanism 72 receives the vertical wireless charging module 1 from the transfer and flipping mechanism 71 and completes the tray-stacking of the vertical wireless charging module 1.

[0055] Reference Figure 5 In some embodiments, the transfer and flipping mechanism 71 includes a fifth horizontal drive mechanism 714, a fifth lifting drive mechanism 715, and a third gripper 716 connected in sequence. The transfer and flipping mechanism 71 also includes a sixth horizontal drive mechanism 711, a second rotary drive mechanism 712, and a fourth gripper 713 connected in sequence. The second rotary drive mechanism 712 drives the fourth gripper 713 to rotate around a horizontal axis, so that the fourth gripper 713 faces upward or horizontally. The fifth horizontal drive mechanism 714 and the fifth lifting drive mechanism 715 drive the third gripper 716 to move, so that the third gripper 716 transports the wireless charging module 1 on the first carrier 31 to the upward-facing fourth gripper 713. The second rotary drive mechanism 712 drives the fourth gripper 713 to rotate to flip the wireless charging module 1 into an upright state.

[0056] It should be noted that both the fifth horizontal drive mechanism 714 and the sixth horizontal drive mechanism 711 are connected to the frame 2. The output end of the fifth horizontal drive mechanism 714 is connected to the fifth lifting drive mechanism 715, and the output end of the fifth lifting drive mechanism 715 is connected to the third gripper 716. The output end of the sixth horizontal drive mechanism 711 is connected to the second rotary drive mechanism 712, and the output end of the second rotary drive mechanism 712 is connected to the fourth gripper 713. The two ends of the driving direction of the fifth horizontal drive mechanism 714 correspond to the turntable 3 and the sixth horizontal drive mechanism 711, respectively. The fifth horizontal drive mechanism 714 drives the fifth lifting drive mechanism 716. The fifth lifting drive mechanism 715 drives the third gripper 716 to move up and down above the turntable 3 and above the sixth horizontal drive mechanism 711. The sixth horizontal drive mechanism 711 is used to drive the second rotary drive mechanism 712 and the fourth gripper 713 to move in the horizontal direction, thereby adjusting the position of the second rotary drive mechanism 712 and the fourth gripper 713 so that the third gripper 716 can transport the wireless charging module 1 on the first carrier 31 to the upward-facing fourth gripper 713. Then the second rotary drive mechanism 712 drives the fourth gripper 713 to rotate so that the wireless charging module 1 can be flipped to an upright position.

[0057] A third defective product collection slot 717 is provided on the outer side of the turntable 3, and the third defective product collection slot 717 is located below the moving path of the third gripper 716. When the wireless charging module 1 on the first carrier 31 is defective, when the third gripper 716 carries the wireless charging module 1 that has failed the test by the electrical testing group 6 and passes above the third defective product collection slot 717, the third gripper 716 throws the wireless charging module 1 that has failed the test by the electrical testing group 6 into the third defective product collection slot 717.

[0058] Reference Figure 2 In some embodiments, the tray-stacking mechanism 72 includes a seventh horizontal drive mechanism 721 and a plurality of trays 722 disposed on the seventh horizontal drive mechanism 721. The seventh horizontal drive mechanism 721 drives the plurality of trays 722 to move in one direction, thereby adjusting the position of the plurality of trays 722 in the horizontal direction.

[0059] Reference Figure 5 The tray-setting mechanism 72 also includes an eighth horizontal drive mechanism 723, a sixth lifting drive mechanism 724 and two fifth grippers 725 connected in sequence. The eighth horizontal drive mechanism 723 and the sixth lifting drive mechanism 724 are used to drive the two fifth grippers 725 to move. The two fifth grippers 725 are used to hold the two ends of the wireless charging module 1 on the fourth gripper 713 and place the wireless charging module 1 on the tray 722.

[0060] Both the seventh horizontal drive mechanism 721 and the eighth horizontal drive mechanism 723 are connected to the frame 2. The driving directions of the seventh horizontal drive mechanism 721 and the eighth horizontal drive mechanism 723 are perpendicular to each other. The two ends of the driving direction of the eighth horizontal drive mechanism 723 correspond to the sixth horizontal drive mechanism 711 and the seventh horizontal drive mechanism 721, respectively. Initially, the seventh horizontal drive mechanism 721 drives a tray 722 to move to the area corresponding to the eighth horizontal drive mechanism 723. The eighth horizontal drive mechanism 723 and the sixth lifting drive mechanism 724 drive the fifth gripper 725 to move. The sixth horizontal drive mechanism 711 drives the second rotation drive mechanism 712 and the fourth gripper 713 to move, so that the fifth gripper 725 and the fourth gripper 713 move closer to each other. The fifth gripper 725 can clamp the wireless charging module 1 on the fourth gripper 713. The fourth gripper 713 releases the wireless charging module 1. Then the eighth horizontal drive mechanism 723 and the sixth lifting drive mechanism 721... 4. Drive the fifth gripper 725 to move to the position of a corresponding tray 722, and finally place the wireless charging module 1 on a tray 722. As the number of wireless charging modules 1 on a tray 722 increases, the seventh horizontal drive mechanism 721 drives a tray 722 to move, so that the area on a tray 722 where no wireless charging module 1 is placed corresponds to the area of ​​the eighth horizontal drive mechanism 723, so that the fifth gripper 725 can place the wireless charging module 1 on the area on a tray 722 where no wireless charging module 1 is placed. In this way, multiple trays 722 can be filled with wireless charging modules 1.

[0061] The first horizontal drive mechanism 42, the second horizontal drive mechanism 82, the third horizontal drive mechanism 212, the fourth horizontal drive mechanism 61, the fifth horizontal drive mechanism 714, the sixth horizontal drive mechanism 711, the seventh horizontal drive mechanism 721, the eighth horizontal drive mechanism 723, the first lifting drive mechanism 43, the second lifting drive mechanism 81, the third lifting drive mechanism 213, the fourth lifting drive mechanism 52, the fifth lifting drive mechanism 715, and the sixth lifting drive mechanism 724 can all be cylinders, hydraulic cylinders, or electric actuators. The first gripper 44, the second gripper 214, the third gripper 716, the fourth gripper 713, and the fifth gripper 725 can all be pneumatic grippers or electric grippers. The first rotary drive mechanism and the second rotary drive mechanism 712 can both be motors.

[0062] Reference Figure 6The present invention also discloses a wireless charging module production line, including the aforementioned wireless charging module testing device, and further including a coil assembly device 22, a drying device 23, a wire end processing device 24, and a finished product assembly device 25. The coil assembly device 22, the drying device 23, the wire end processing device 24, the finished product assembly device 25, and the feeding device 4 are arranged sequentially from front to back. The coil assembly device 22 is used to bond two coils 11 side by side to the magnetic plate 12, and to bond a third coil 11 to the two coils 11, thereby obtaining a coil 11 on the magnetic plate 12. The coil assembly 110 is dried by a drying device 23 to bake the magnetic plate 12 and the coil assembly 110, so that the magnetic plate 12 and the three coils 11 are firmly bonded together. The wire end processing device 24 is used to manage and solder the wire ends 111 of the coil assembly 110. The finished product assembly device 25 is used to solder the pins on the adhesive strip 13 to the wire ends 111 of the coil assembly 110 and to solder the temperature sensing wire 14 to the coil assembly 110 to obtain the wireless charging module 1. The loading device 4 is used to transport the wireless charging module 1 to the first carrier 31 of the turntable 3.

[0063] Understandably, the coil assembly assembly device 22 uses glue to bond two coils 11 side by side to the magnetic plate 12, and to bond a third coil 11 to the two coils 11. The drying device 23 is used to dry the glue.

[0064] The wireless charging module production line can complete the production and testing of wireless charging modules. The coil assembly device 22, drying device 23, wire end processing device 24, finished product assembly device 25 and wireless charging module testing device are set up in sequence, so that the various processes of producing wireless charging module 1 are connected, which helps to improve the efficiency of producing wireless charging module 1, reduce manual work, and improve the quality of wireless charging module 1.

[0065] This invention also discloses a wireless charging module manufacturing process, applicable to the aforementioned wireless charging module production line, comprising the following steps: Two sets of circular adhesive are applied to the magnetic plate 12, and then two coils 11 are attached to the two sets of circular adhesive respectively. Next, dotted adhesive is applied to the two opposite halves of the two coils 11, and a third coil 11 is attached to the dotted adhesive to obtain the coil assembly 110. Dry the glue; The wire ends 111 of the coil assembly 110 are tidied and soldered; Solder the wire end 111 and the pins on the adhesive strip 13 together; The temperature sensing wire 14 is soldered onto the coil assembly 110 to obtain the wireless charging module 1, which is the finished product. The appearance of the wireless charging module 1 is inspected, the height of the coil assembly 110 on the magnetic plate 12 is inspected, and the electrical characteristics of the coil assembly 110 are inspected to obtain qualified finished products, which are then arranged and packaged.

[0066] Specifically, the coil assembly device 22 applies two sets of circular adhesive to the magnetic plate 12, then attaches two coils 11 to the two sets of circular adhesive, and then applies dotted adhesive to the two opposite halves of the two coils 11, and attaches a third coil 11 to the dotted adhesive. The adhesive is dried using a drying device 23. The wire end processing device 24 handles and solders the wire ends 111 of the coil assembly 110. The finished product assembly device 25 solders the wire ends 111 to the pins on the adhesive strip 13, and solders the temperature sensing wire 14 to the coil assembly 110, thus obtaining the wireless charging module 1. Alternatively, the temperature sensing wire 14 can be soldered to the coil assembly 110 manually. The wireless charging module testing device inspects the appearance of the wireless charging module 1, the height of the coil assembly 110 on the magnetic plate 12, and the electrical characteristics of the coil assembly 110, obtaining qualified finished products, which are then trayed and packaged.

[0067] The structure of the wireless charging module 1 is relatively simple, and the manufacturing process involves fewer and simpler steps.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A wireless charging module production line, characterized in that, include: Coil assembly equipment, drying equipment, wire end processing equipment, finished product assembly equipment, and wireless charging module testing equipment. The wireless charging module testing device includes a turntable with multiple first carriers distributed around its circumference. The first carriers are used to horizontally support the wireless charging module. Along the rotation direction of the turntable, the outer side of the turntable is sequentially provided with a feeding device, three wire cutting mechanisms, an appearance inspection mechanism, a height measurement group, an electrical testing group, and a unloading device. A loading device is used to transport the wireless charging module to be tested to the first carrier; The height measurement group includes two sets of distance sensors. The two sets of distance sensors are used to detect the height of the upper surface of the coil assembly of the wireless charging module and the upper surface of the magnetic plate of the wireless charging module, respectively. The difference between the detection values ​​of the two sets of distance sensors is the height of the coil assembly on the magnetic plate. The height measuring group also includes a fourth lifting drive mechanism. The output end of the fourth lifting drive mechanism is connected to two sets of distance measuring sensors. The distance measuring sensors are contact distance measuring sensors. The detection end of one set of distance measuring sensors is connected to a pressure plate. The lower surface of the pressure plate and the detection end of the other set of distance measuring sensors are on the same horizontal plane. The pressure plate can abut against the upper surface of the coil assembly of the wireless charging module. The detection end of the other set of distance measuring sensors can abut against the upper surface of the magnetic plate of the wireless charging module. The lower surface of the pressure plate is horizontal. An electrical testing group is used to detect the electrical characteristics of the wireless charging module. A feeding device is used to unload the wireless charging module from the first carrier after the wireless charging module has completed the inspection. The coil assembly device, the drying device, the wire end processing device, the finished product assembly device, and the feeding device are arranged sequentially. The coil assembly device is used to glue two coils side by side onto a magnetic plate and to glue a third coil onto two of the coils to obtain a coil assembly. The drying device is used to bake the coil assembly. The wire end processing device is used to straighten and solder the wire ends of the coil assembly. The finished product assembly device is used to solder the pins on the adhesive strip to the wire ends of the coil assembly to obtain the wireless charging module. The feeding device is used to transport the wireless charging module onto the first carrier of the turntable.

2. The wireless charging module production line according to claim 1, characterized in that, The feeding device includes a feeding conveyor belt and a plurality of second carriers evenly arranged on the feeding conveyor belt. The second carriers are used to carry the wireless charging module. The feeding device also includes a first horizontal drive mechanism, a first lifting drive mechanism disposed on the output end of the first horizontal drive mechanism, and two first grippers disposed on the output end of the first lifting drive mechanism. The first horizontal drive mechanism and the first lifting drive mechanism drive the two first grippers to move so that the two first grippers can respectively clamp the magnetic plate and the adhesive strip of the wireless charging module.

3. The wireless charging module production line according to claim 1, characterized in that, The wire-cutting mechanism includes a second lifting drive mechanism, a second horizontal drive mechanism, and scissors connected in sequence. The second lifting drive mechanism and the second horizontal drive mechanism respectively drive the scissors to move in the vertical and horizontal directions, so that the scissors can cut the wire ends of the corresponding coils on the wireless charging module on the first carrier.

4. The wireless charging module production line according to claim 3, characterized in that, The appearance inspection mechanism includes a first CCD camera, a second CCD camera, and a fill light. The fill light is used to provide supplemental lighting for the wireless charging module on the first carrier on the turntable. The first CCD camera is horizontally oriented towards the wireless charging module on the first carrier, and the second CCD camera is vertically oriented towards the wireless charging module to obtain images of the wire ends and the soldering area between the wire ends and the pins on the adhesive strip.

5. The wireless charging module production line according to claim 4, characterized in that, It also includes a first defective product unloading device disposed between the height measuring group and the appearance inspection mechanism. The first defective product unloading device includes a first defective product collection tank and a third horizontal drive mechanism, a third lifting drive mechanism and a second gripper connected in sequence. The second gripper is used to hold the wireless charging module that fails the appearance inspection mechanism to transport the wireless charging module to the first defective product collection tank.

6. The wireless charging module production line according to claim 1, characterized in that, The electrical testing group includes a fourth horizontal drive mechanism and multiple probes disposed on the output end of the fourth horizontal drive mechanism. The fourth horizontal drive mechanism is used to drive the probes to press against the wire end of the wireless charging module on the first carrier.

7. The wireless charging module production line according to claim 1, characterized in that, The unloading device includes a transfer and flipping mechanism and a tray-stacking mechanism. The transfer and flipping mechanism is used to receive the wireless charging module on the first carrier and flip the wireless charging module to an upright state. The tray-stacking mechanism is used to unload the wireless charging module from the transfer and flipping mechanism and place it on a tray.

8. The manufacturing process of a wireless charging module, characterized in that, A wireless charging module production line according to any one of claims 1 to 7 includes the following steps: Two sets of circular adhesive are applied to a magnetic plate, and then two coils are attached to the two sets of circular adhesive respectively. Next, dotted adhesive is applied to the two opposite halves of the two coils, and a third coil is attached to the dotted adhesive to obtain a coil assembly. Dry the glue; The wire ends of the coil assembly are tidied and soldered. Solder the thread end and the pins on the tape together; The temperature sensing wire is soldered onto the coil assembly to obtain a wireless charging module; The appearance of the wireless charging module is inspected, the height of the coil assembly on the magnetic plate is checked, and the electrical characteristics of the coil assembly are tested. Qualified finished products are then arranged on trays and packaged.

Images