Same-side folding triad wireless charger

Abstract

The utility model relates to a same side folding three-in-one wireless charger, including main charging body, first vice charging body and second vice charging body, and the main charging body includes main charging seat, and first, second vice charging body each includes first vice charging seat and second vice charging seat, and the main charging seat is connected with two vice charging bodies through the connecting band respectively, and is equipped with main charging coil, main charging magnetism piece and main circuit board in the main charging seat, and is equipped with first charging module and first magnet in first vice charging seat, and is equipped with watch charging module in second vice charging seat, and there is magnetism piece or first magnetism piece in watch charging module, and first charging module includes first magnetic attraction subassembly and first charging coil. When folding, first magnet and watch charging module adsorb, and first magnetic attraction subassembly is attracted to main charging magnetism piece when folding, and each charging surface is covered and will not be exposed, and the charging surface is damaged, and the product service life is improved, and can avoid misabsorbing other foreign matters, and effectively protect the product, and be more safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of wireless charger technology, specifically to a three-in-one wireless charger that folds on the same side. Background Technology

[0002] With the rapid development of charging technology, wireless charging has become the mainstream technology for charging small electronic products. Currently, mobile phones, watches, and headphones are gradually becoming the most commonly used consumer electronics products, and all of them have charging needs, hence the current popularity of three-in-one wireless chargers.

[0003] A 3-in-1 wireless charger is a device that integrates multiple charging functions, providing wireless charging for three devices simultaneously: a mobile phone, a watch, and headphones. The features of the 3-in-1 wireless charger are as follows:

[0004] 1) Convenient and efficient, it can charge multiple devices at the same time, eliminating the need for multiple chargers and data cables, reducing desktop clutter, saving charging time, and making it convenient for users;

[0005] 2) Strong compatibility: Most 3-in-1 wireless chargers support the Qi wireless charging standard and can charge a variety of devices that comply with the standard. Some products are also optimized for specific brand devices.

[0006] 3) Diverse designs are available, including folding, upright, and tablet styles. Folding designs are easy to carry and suitable for travel; upright designs can be used as phone stands for watching videos or checking messages; and tablet designs are more minimalist and take up less desk space.

[0007] Existing foldable three-in-one wireless chargers typically fold in an S-shape, with the two auxiliary charging units on the left and right stacked on top and bottom surfaces of the middle charging unit, respectively. However, this stacking structure inevitably exposes one charging surface, making it susceptible to dirt and inconvenient for carrying around. Furthermore, the magnetic element that attracts the three charging units in this S-shaped folding structure presents a challenge. It's crucial to ensure that the two auxiliary charging units simultaneously attract the main charging unit while avoiding any magnetic repulsion between the two auxiliary units. Therefore, improvements to the magnetic attraction structure are necessary. Utility Model Content

[0008] In view of this, a three-in-one wireless charger with a reasonably optimized magnetic structure, convenient folding and carrying, safety and reliability, and long service life is provided.

[0009] A three-in-one wireless charger that folds on the same side includes a main charging body, a first auxiliary charging body, and a second auxiliary charging body. The main charging body includes a main charging base; the first auxiliary charging body includes a first auxiliary charging base, and the second auxiliary charging body includes a second auxiliary charging base; the main charging base and the first auxiliary charging body are connected by a first connecting strip, and the main charging base and the second auxiliary charging body are connected by a second connecting strip; characterized in that the main charging base contains a main charging coil, a main charging magnetic component, and a main circuit board; the first auxiliary charging base contains a first charging module and a first magnet; the second auxiliary charging base contains a watch charging module, the watch charging module containing a magnetic component or a first magnetic component; the first charging module includes a first magnetic component and a first charging coil; the first magnet is disposed on the bottom wall of the main charging base and has a spacer element between it and the first charging module; the first magnet attracts the watch charging module when folded; the first magnetic component attracts the main charging magnetic component when folded.

[0010] Furthermore, the main magnetic charging component is an unclosed annular magnetic sheet.

[0011] Furthermore, the main charging dock includes a main cover, a main bottom shell, and a main charging coil cover; the main charging coil cover is mounted on the main bottom shell; the main charging coil cover is located between the main cover and the main bottom shell; the main charging magnetic component is mounted on the main charging coil cover; the main charging magnetic component is located between the main cover and the main charging coil cover; the main charging coil cover is a circular piece; the main charging coil cover covers the upper surface of the main charging coil.

[0012] Furthermore, the main charging coil cover has an annular groove on its upper surface facing the main cover; the main charging magnetic element is an unclosed ring; the main charging magnetic element is disposed in the annular groove; the main charging coil cover has a cavity in the middle of its bottom surface corresponding to the main charging coil, and the main charging coil is embedded in the cavity; the depth of the cavity is consistent with the thickness of the main charging coil.

[0013] Furthermore, a coil support is provided on the lower surface of the main charging coil; an insulating film is provided on the bottom side of the coil support away from the main charging coil; a main circuit board is provided below the insulating film away from the coil support; an upper shield and a lower shield are respectively provided on the upper and lower surfaces of the main circuit board; multiple electronic components and processing units are provided on the upper and lower surfaces of the main circuit board, and the multiple electronic components include at least one of resistors, capacitors and inductors; a heat insulation film is also provided between the main circuit board and the main bottom shell; the main bottom shell includes a circular flat bottom wall located in the middle and an arc-shaped wall extending upward from the periphery of the circular flat bottom wall; the heat insulation film includes a circular flat bottom located in the center and an arc-shaped edge extending upward from the periphery of the circular flat bottom; the circular flat bottom and the arc-shaped edge of the heat insulation film are respectively attached to the circular flat bottom wall and the arc-shaped wall of the main bottom shell.

[0014] Further, the first auxiliary charging base includes a first bottom shell and a first cover; the spacer is a silicone block; the area of ​​the silicone block is larger than the area of ​​the first magnet; the silicone block covers the upper surface of the first magnet; the inner bottom wall surface of the first bottom shell is provided with magnetic holes for mounting the first magnet; a first circuit board is provided between the first charging module and the silicone block; the first circuit board is a circular piece and is attached to the bottom surface of the first charging module; the first magnetic attraction assembly includes an annular magnetic sheet and a magnetic guide ring, the annular magnetic sheet is composed of multiple arc-shaped magnets connected to form an unclosed ring; the annular magnetic sheet is attached to the upper surface of the magnetic guide ring; the first charging coil is located inside the ring of the annular magnetic sheet; the mounting surface of the first charging coil is located 0.15-0.20 mm below the mounting surface of the annular magnetic sheet; the first cover covers the upper surface of the annular magnetic sheet; the first cover is a flat top surface, and the main cover is a flat surface; the flat top surface of the first cover fits against the flat surface of the main cover when folded.

[0015] Furthermore, the second auxiliary charging base also includes a module bracket, on which the watch charging module is mounted; the module bracket includes a support ring and a base; the outer periphery of the watch charging module is embedded in the support ring, and the bottom of the watch charging module is fitted to the base; the base is fitted to the inner bottom wall of the second auxiliary charging base; the second auxiliary charging base includes a second bottom shell; the second bottom shell is bowl-shaped or saucer-shaped; the second bottom shell has an opening; the watch charging module and the module bracket cover the opening of the second bottom shell; the surface of the watch charging module and the peripheral surface of the module bracket constitute the second upper surface of the entire second auxiliary charging body; the second upper surface fits against the bottom surface of the first auxiliary charging base when folded.

[0016] Further, each of the first and second connecting strips includes a soft adhesive tape, an inner cable, and multiple wire cores. The soft adhesive tape is heat-pressed onto the outside of the inner cable, and the two ends of the inner cable protrude from the two ends of the soft adhesive tape. The multiple wire cores include a current wire core group extending from a first position on the end face of the inner cable and at least one signal wire core extending from a second position on the end face of the inner cable. Each current wire core group is a combination of at least two single wire cores, and the wire cores of each current wire core group are spaced apart and arranged to be connected to the same solder pad. The length of the second connecting strip is greater than that of the first connecting strip. The length of the first connecting strip is set so that the entire top surface of the first auxiliary charger can be flatly stacked on the upper surface of the main charger when folded. The length of the second connecting strip is set so that the entire top surface of the second auxiliary charger can be flatly stacked on the bottom surface of the first auxiliary charger when folded.

[0017] Furthermore, the first connecting strip has a first main connecting end and a first auxiliary connecting end; the first main connecting end extends into the main charging base and is installed on the main charging base by a first pressing block; the auxiliary connecting end extends into the first auxiliary charging base and is installed on the first auxiliary charging base by a first clip; the first connecting strip has a second main connecting end and a second auxiliary connecting end; the second main connecting end extends into the main charging base and is installed on the main charging base by a second pressing block; the second auxiliary connecting end extends into the second auxiliary charging base and is installed on the second auxiliary charging base by a second clip.

[0018] Furthermore, the main charging unit is used to charge the earphones; the first auxiliary charging unit is used to charge the mobile phone, and the second auxiliary charging unit is used to charge the watch; the main circuit board is an earphone charging circuit board, and the first auxiliary charging unit contains a mobile phone charging circuit board; the mobile phone charging circuit board and the watch charging module are respectively electrically connected to the main circuit board.

[0019] In the aforementioned three-in-one wireless charger and the three-in-one wireless charger with folding on the same side, a first magnetic component and a first magnet are simultaneously arranged inside the first secondary charging base. These are located at the upper and lower parts of the first secondary charging base, respectively. Thus, when folded, the first magnetic component magnetically attracts the main charging magnet, while the first magnet attracts the watch charging module. This ensures that the main cover, the first cover 21, and the charging surface of the watch charging module are covered and not exposed. Traditional chargers typically assemble the watch charging module into the main charging body and use a flip-up structure, which is relatively inconvenient to use. This application, through the unique distribution of the charging module, places the watch charging module separately within the second secondary charging body, allowing for easy folding and carrying, eliminating concerns about damaging the charging surface, and extending product lifespan. Furthermore, this magnetic structure is more rationally optimized; after folding, the overall magnetic force on the charger is weakened, preventing accidental attraction of other magnetically attracted small devices or foreign objects. Simultaneously, it effectively protects the charging surface; the magnetic structure does not affect charging performance and protects the product, making it safer and more reliable. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of a three-in-one wireless charger that folds on the same side, provided for an embodiment of this utility model.

[0021] Figure 2 for Figure 1 An exploded view of the structure of a three-in-one wireless charger that folds on the same side.

[0022] Figure 3 for Figure 1 A three-dimensional exploded view of the folded three-in-one wireless charger on the same side.

[0023] Figure 4 for Figure 1 A three-dimensional exploded view of the same-side folding three-in-one wireless charger.

[0024] Figure 5 for Figure 2 A magnified schematic diagram of part A in the middle.

[0025] In the attached image:

[0026] 10. Main charging body; 102. Arc-shaped wall; 107. Circular flat bottom wall; 108. Main charging magnetic component; 109. Screw; 11. Main charging coil; 110. Main charging coil top cover; 112. Annular groove; 12. Coil bracket; 120. Main charging base; 121. Support piece; 122. Main bottom shell; 123. Mounting foot; 124. Hole post; 126. Edge retainer; 13. Insulating film; 141. Upper shield; 142. Lower shield; 15. Main circuit board; 17. Main cover; 18. Heat insulation film; 181. Circular flat bottom; 182. Arc-shaped edge; 20. First auxiliary charging body; 201. First auxiliary charging base; 202. First bottom shell; 205. Magnetic hole post; 21. First cover ; 22. First charging module; 23. First circuit board; 231. First bottom surface; 24. Silicone block; 25. First magnet; 271. Annular magnetic sheet; 272. Magnetic ring; 28. First charging coil; 30. Second auxiliary charging body; 302. Second auxiliary charging base; 305. Second upper surface; 32. Watch charging module; 33. Module bracket; 334. Base support; 336. Support ring; 35. Second bottom shell; 41. First connecting strip; 42. Second connecting strip; 411. Soft tape; 412. Inner cable; 415. First clip; 420. End face; 425. Second clip; 45. Current core group; 46. Signal core; 47. First pressure block; 48. Second pressure block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 4This illustration shows a side-folding three-in-one wireless charger according to an embodiment of the present invention, comprising a main charging body 10, a first auxiliary charging body 20, and a second auxiliary charging body 30. The main charging body 10 includes a main charging base 120; the first auxiliary charging body 20 includes a first auxiliary charging base 201, and the second auxiliary charging body 30 includes a second auxiliary charging base 302; the main charging base 120 is connected to the first auxiliary charging body 20 via a first connecting strap 41, and the main charging base 120 is connected to the second auxiliary charging body 30 via a second connecting strap 42; the main charging base 120 contains a main charging coil 11 and a main charging... The system includes a magnetic attracting component 108 and a main circuit board 15; a first charging module 22 and a first magnet 25 are provided inside the first auxiliary charging base 201; a watch charging module 32 is provided inside the second auxiliary charging base 302, and the watch charging module 32 contains a magnetic component or a first magnetic attracting component; the first charging module 22 includes a first magnetic attraction component and a first charging coil 28; the first magnet 25 is disposed on the bottom wall of the main charging base 120 and has a spacer element between it and the first charging module 22; the first magnet 25 attracts the watch charging module 32 when folded; the first magnetic attraction component attracts the main magnetic attracting component 108 when folded.

[0029] Preferably, the main magnetic charging component 108 is an unclosed annular magnetic sheet. The annular main magnetic charging component 108 is in close contact with the main cover 17 and can directly and closely attract the first magnetic assembly, as shown in the figure, mainly attracting the annular magnetic sheet 271.

[0030] Further, the main charging dock 120 includes a main cover 17, a main bottom shell 122, and a main charging coil cover 110; the main charging coil cover 110 is installed inside the main bottom shell 122; the main charging coil cover 110 is located between the main cover 17 and the main bottom shell 122; the main charging magnetic component 108 is installed on the main charging coil cover 110; the main charging magnetic component 108 is located between the main cover 17 and the main charging coil cover 110; the main charging coil cover 110 is a circular piece; the main charging coil cover 110 covers the upper surface of the main charging coil 11.

[0031] Specifically, the main charging coil cover 110 has an annular groove 112 on its upper surface facing the main cover 17; the main charging magnetic component 108 is an unclosed ring; the ring is located in the annular groove 112, that is, the entire ring or the main magnetic component 108 is embedded in the annular groove 112. The main charging coil cover 110 has a cavity in the middle of the bottom surface corresponding to the main charging coil 11, and the main charging coil 11 is embedded in the cavity; the depth of the cavity is consistent with the thickness of the main charging coil 11. Specifically, the inner wall of the annular groove 112 is the sidewall of the cavity, and the main charging magnetic component 108 is essentially on the same horizontal plane as the main charging coil 11. This saves space and makes it thinner. Moreover, the iron sheet only attracts the first magnetic component when folded, and during charging, the iron sheet itself is not magnetic and will not interfere with the charging process of the main charging coil 11. Of course, it is understandable that the main magnetic charging component 108 can also be other sheet-shaped materials that are not magnetic in themselves but can attract magnetism.

[0032] Specifically, a coil support 12 is provided on the lower surface of the main charging coil 11; an insulating film 13 is provided on the bottom side of the coil support 12 away from the main charging coil 11. The coil support 12 includes a support piece 121 and mounting feet 123 extending outward from the edge of the support piece 121. Multiple baffles 126 are symmetrically provided around the periphery of the support piece 121 to block the periphery of the main charging coil 11, thereby securing the main charging coil 11. The mounting feet 123 are used to fix the coil support 12 to the main bottom shell 122. Preferably, the mounting feet 123 have mounting holes, and the coil support 12 has through holes to allow fasteners to pass through the mounting holes on the mounting feet 123 and be fixed to the main bottom shell 122. The coil support 12 has fixing posts, and screws 109 pass through the fixing posts to fix it to the main bottom shell 122.

[0033] A main circuit board 15 is disposed below the insulating film 13 away from the coil support 12; an upper shielding cover 141 and a lower shielding cover 142 are respectively disposed on the upper and lower surfaces of the main circuit board 15. Preferably, as follows... Figure 3 and Figure 4As shown, the upper and lower surfaces of the main circuit board 15 are respectively provided with multiple electronic components and processing units. The multiple electronic components include at least one of resistors, capacitors, and inductors. A heat insulation film 18 is also provided between the main circuit board 15 and the main bottom shell 122. The main bottom shell 122 includes a circular flat bottom wall 107 located in the middle and an arc-shaped wall 102 extending upward from the periphery of the circular flat bottom wall 107. The heat insulation film 18 includes a circular flat bottom 181 located in the center and an arc-shaped edge 182 extending upward from the periphery of the circular flat bottom 181. The circular flat bottom 181 and the arc-shaped edge 182 of the heat insulation film 18 are respectively attached to the circular flat bottom wall 107 and the arc-shaped wall 102 of the main bottom shell 122, thereby providing sufficient heat insulation. Even when holding the charger in your hand during charging, it will not become too hot.

[0034] Further, the first auxiliary charging base 201 includes a first bottom shell 202 and a first cover 21; the spacer is a silicone block 24, which not only isolates the first magnet 25 from the circuit board above, but also surrounds the periphery of the first magnet 25, providing a certain degree of protection. The inner bottom wall surface of the first bottom shell 202 is provided with magnetic post holes 205 for mounting the first magnet 25; therefore, the first magnet 25 is preferably tightly attached to the inner wall of the first bottom shell 202. The area of ​​the silicone block 24 is larger than the area of ​​the first magnet 25; the silicone block 24 covers the upper surface of the first magnet 25, and the first magnet 25 is close to the inner bottom wall of the first bottom shell 202. A first circuit board 23 is provided between the first charging module 22 and the silicone block 24; the first circuit board 23 is a circular piece attached to the bottom surface of the first charging module 22. The first magnetic attraction assembly includes an annular magnetic sheet 271 and a magnetic ring 272. The annular magnetic sheet 271 is formed by connecting multiple arc-shaped magnets into an open ring, preferably a magnetic ring conforming to international standards, to ensure that the product meets the performance requirements of various international standard tests. The first circuit board 23 has multiple electronic components mounted on its first bottom surface 231 facing the first bottom shell 202. This downward mounting method allows for the inclusion of more electronic components while avoiding interference between the electronic components, which are typically mounted on the upper surface, and the annular magnetic sheet 271, magnetic ring 272, and first charging coil 28. It also serves as a self-shielding mechanism.

[0035] The annular magnetic sheet 271 is attached to the upper surface of the magnetic ring 272. The combination of the magnetic ring 272 and the annular magnetic sheet 271 gives the first magnetic assembly relatively strong magnetic attraction performance, thereby enabling convenient and stable magnetic attraction of the main charging base 120 and the first auxiliary charging base 201, as well as for attracting larger electronic products, such as mobile phones, as the first auxiliary charging base 201 is primarily used for charging mobile phones. The first charging coil 28 is located inside the ring of the annular magnetic sheet 271; the mounting surface of the first charging coil 28 is located 0.15-0.20 mm below the mounting surface of the annular magnetic sheet 271; the first cover 21 covers the upper surface of the annular magnetic sheet 271; the first cover 21 has a flat top surface, and the main cover 17 has a flat surface; the flat top surface of the first cover 21 fits against the flat surface of the main cover 17 when folded. Therefore, when folded, the main cover 17 and the first cover 21 are spaced between the annular magnetic sheet 271 and the main charging magnetic component 108. The two covers are relatively thin, so the annular magnetic sheet 271 and the main charging magnetic component 108 can be tightly magnetically attracted to each other. The two covers are closely attached to each other, which effectively protects the charging surface. At the same time, the magnetic attraction weakens after folding, avoiding the accidental attraction of other magnetically attracted small devices or foreign objects.

[0036] Furthermore, the second auxiliary charging base 302 is also provided with a module bracket 33, on which the watch charging module 32 is disposed; the module bracket 33 includes a support ring portion 336 and a base portion 334; the outer periphery of the watch charging module 32 is embedded in the support ring portion 336, and the bottom of the watch charging module 32 is assembled to the base portion 334; the base portion 334 is assembled to the inner bottom wall of the second auxiliary charging base 302; the second auxiliary charging base 302 includes a second bottom shell 35; the second bottom shell 35 is bowl-shaped or saucer-shaped; the second bottom shell 35 has an opening; the watch charging module 32 and the module bracket 33 cover the opening of the second bottom shell 35. The surface of the watch charging module 32 and the peripheral surface of the module bracket 33 constitute the second upper surface 305 of the entire second auxiliary charging body 30; the second upper surface 305 is in contact with the bottom surface of the first auxiliary charging base 201 when folded. The watch charging module 32 has a built-in charging coil and a magnetic attraction component. Therefore, when the second auxiliary charging body 30 is stacked with the first auxiliary charging body 20, the magnetic attraction component built into the watch charging module 32 attracts the first magnet 25, achieving a tight stacking of the second auxiliary charging body 30 and the first auxiliary charging body 20. Moreover, the second auxiliary charging body 30 is magnetically stacked on the back of the main bottom shell 202 of the first auxiliary charging body 20. Thus, the first auxiliary charging body 20 is sandwiched between the second auxiliary charging body 30 and the main charging body 10. In this way, the charging surfaces of each charging body are protected, improving service life. At the same time, the magnetic attraction weakens the magnetic attraction of the entire charger to the outside after folding, preventing the accidental attraction of other magnetically attracted small devices or foreign objects.

[0037] like Figure 2 and 5 As shown, specifically, each of the first connecting strip 41 and the second connecting strip 42 includes a soft adhesive tape 411, an inner cable 412, and multiple wire cores. The soft adhesive tape 411 is heat-pressed onto the outside of the inner cable 412, meaning the soft adhesive tape 411 and the inner cable 412 are integrally formed by heat pressing. The two ends of the inner cable 412 protrude from the two ends of the soft adhesive tape 411. The multiple wire cores include a current wire core group 45 extending from a first position on the end face 420 of the inner cable 412 and at least one signal wire core 46 extending from a second position on the end face 420 of the inner cable 412. The first and second positions are on the same horizontal plane, meaning the current wire core group 45 and the signal wire core 46 are side-by-side. Each current wire core group 45 is a combination of at least two single wire cores, and the wire cores of each current wire core group 45 are spaced apart and arranged to connect to the same solder joint. Figure 5As shown, in the same current core group 45, the inner row of wires covering each current core is bonded together, which is more conducive to connecting all the cores in the same group to the same solder joint. By combining multiple current cores into a row, the integrated structure can be applied to larger currents and is convenient for soldering. The length of the second connecting strip 42 is greater than that of the first connecting strip 41; the length of the first connecting strip 41 is set so that when folded, the entire top surface of the first auxiliary charging body 20 can be flatly stacked on the upper surface of the main charging base 120, that is, the length of the first connecting strip 41 is set to be slightly greater than the stacking thickness that can wrap around both the main charging body 10 and the first auxiliary charging body 20. The length of the second connecting strip 42 is set so that when folded, the entire top surface of the second auxiliary charging body 30 can be flatly stacked on the bottom surface of the first auxiliary charging body 20.

[0038] Furthermore, such as Figure 2 As shown, the first connecting band 41 has a first main connecting end and a first auxiliary connecting end; the first main connecting end extends into the main charging base 120 and is installed in the main charging base 120 through a first pressing block 47; the auxiliary connecting end extends into the first auxiliary charging base 201 and is installed in the first auxiliary charging base 201 through a first clip 415; the first connecting band 41 has a second main connecting end and a second auxiliary connecting end; the second main connecting end extends into the main charging base 120 and is installed in the main charging base 120 through a second pressing block 48; the auxiliary connecting end extends into the second auxiliary charging base 302 and is installed in the second auxiliary charging base 302 through a second clip 425. The first pressing block 47 and the second pressing block 48 are both arc-shaped blocks and are fastened to the corresponding bottom shells with screws. The curvature of the arc-shaped blocks corresponds to the curvature of the corresponding bottom shell position. The first card 415 and the second card 425 are respectively provided with card portions on both sides. The second auxiliary charging base 302 and the first auxiliary charging base 201 are respectively provided with a first card hole 416 and a second card hole 426. The width of the first card hole 416 and the second card hole 426 is slightly narrower than the width of the corresponding first card 415 and the second card 425, so that the card portions on the left and right sides of each card are locked in the corresponding bottom shell, thereby strengthening the tensile strength of the connecting strip.

[0039] Specifically, the main charging unit 10 is used to charge the earphones; the first auxiliary charging unit 20 is used to charge the mobile phone; and the second auxiliary charging unit 30 is used to charge the watch. The main circuit board inside the main charging unit 10 is the main circuit board 15, which is the earphone charging circuit board. The first auxiliary charging unit contains a mobile phone charging circuit board, i.e., the first circuit board 23 is the mobile phone charging circuit board. The mobile phone charging circuit board and the watch charging module 32 are respectively electrically connected to the main circuit board 15. The main charging unit 10 is used to charge the earphones. The earphone charging circuit usually uses fewer components. Therefore, the main charging unit 10 can accommodate the entire charging management main circuit board 15. That is, the first circuit board 23 is specially equipped with a circuit module for mobile phone charging, while the main circuit board 15 can be equipped with common circuit modules, such as processing chips and power management, which can make full and reasonable use of the limited space and give full play to the function of the magnetic structure.

[0040] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A three-in-one wireless charger that folds on the same side, comprising a main charging body, a first auxiliary charging body, and a second auxiliary charging body, wherein the main charging body includes a main charging base; the first auxiliary charging body includes a first auxiliary charging base, and the second auxiliary charging body includes a second auxiliary charging base; the main charging base is connected to the first auxiliary charging body via a first connecting strap, and the main charging base is connected to the second auxiliary charging body via a second connecting strap; characterized in that, The main charging dock contains a main charging coil, a main magnetic charging component, and a main circuit board; the first auxiliary charging dock contains a first charging module and a first magnet; the second auxiliary charging dock contains a watch charging module, which contains a magnetic component or a first magnetic charging component; the first charging module includes a first magnetic attraction component and a first charging coil; the first magnet is located on the bottom wall of the main charging dock and is spaced apart from the first charging module; the first magnet attracts the watch charging module when folded; the first magnetic attraction component attracts the main magnetic charging component when folded.

2. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The main magnetic charging component is an unsealed annular magnetic sheet.

3. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The main charging dock includes a main cover, a main bottom shell, and a main charging coil cover; the main charging coil cover is mounted on the main bottom shell. The main charging coil cover is located between the main cover and the main bottom shell; the main charging magnetic component is mounted on the main charging coil cover; the main charging magnetic component is located between the main cover and the main charging coil cover; the main charging coil cover is a circular piece; the main charging coil cover covers the upper surface of the main charging coil.

4. The three-in-one wireless charger with folding on the same side as described in claim 3, characterized in that, The main charging coil cover has an annular groove on its upper surface facing the main cover; the main charging magnetic element is an unclosed ring; the main charging magnetic element is located in the annular groove; the main charging coil cover has a cavity in the middle of its bottom surface corresponding to the main charging coil, and the main charging coil is embedded in the cavity; the depth of the cavity is consistent with the thickness of the main charging coil.

5. The three-in-one wireless charger with folding on the same side as described in claim 4, characterized in that, The lower surface of the main charging coil is provided with a coil support; the bottom side of the coil support away from the main charging coil is provided with an insulating film; the lower part of the insulating film away from the coil support is provided with a main circuit board; the upper and lower surfaces of the main circuit board are respectively provided with an upper shield and a lower shield; the upper and lower surfaces of the main circuit board are respectively provided with multiple electronic components and processing units, and the multiple electronic components include at least one of resistors, capacitors and inductors; a heat insulation film is also provided between the main circuit board and the main bottom shell; the main bottom shell includes a circular flat bottom wall located in the middle and an arc-shaped wall extending upward from the periphery of the circular flat bottom wall; the heat insulation film includes a circular flat bottom located in the center and an arc-shaped edge extending upward from the periphery of the circular flat bottom; the circular flat bottom and the arc-shaped edge of the heat insulation film are respectively attached to the circular flat bottom wall and the arc-shaped wall of the main bottom shell.

6. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The first auxiliary charging base includes a first bottom shell and a first cover; the spacer is a silicone block; the area of ​​the silicone block is larger than the area of ​​the first magnet; the silicone block covers the upper surface of the first magnet; the inner bottom wall surface of the first bottom shell is provided with magnetic holes for mounting the first magnet; a first circuit board is provided between the first charging module and the silicone block; the first circuit board is a circular piece and is attached to the bottom surface of the first charging module; the first magnetic attraction assembly includes an annular magnetic sheet and a magnetic guide ring, the annular magnetic sheet is composed of multiple arc-shaped magnets connected to form an unclosed ring; the annular magnetic sheet is attached to the upper surface of the magnetic guide ring; The first charging coil is located inside the ring of the annular magnetic sheet; the mounting surface of the first charging coil is located 0.15-0.20 mm below the mounting surface of the annular magnetic sheet; the first cover covers the upper surface of the annular magnetic sheet; The first cover has a flat top surface, and the main cover has a flat surface; the flat top surface of the first cover fits against the flat surface of the main cover when folded.

7. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The second auxiliary charging dock also includes a module bracket, on which the watch charging module is mounted. The module bracket includes a support ring and a base. The outer periphery of the watch charging module is embedded in the support ring, and the bottom of the watch charging module is fitted to the base. The base is fitted to the inner bottom wall of the second auxiliary charging dock. The second auxiliary charging dock includes a second bottom shell. The second bottom shell is bowl-shaped or saucer-shaped. The second bottom shell has an opening. The watch charging module and the module bracket cover the opening of the second bottom shell. The surface of the watch charging module and the peripheral surface of the module bracket constitute the second upper surface of the entire second auxiliary charging body. The second upper surface fits against the bottom surface of the first auxiliary charging dock when folded.

8. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, Each of the first and second connecting strips includes a soft adhesive tape, an inner cable, and multiple wire cores. The soft adhesive tape is heat-pressed onto the outside of the inner cable, with both ends of the inner cable protruding from the ends of the soft adhesive tape. The multiple wire cores include a current wire core group extending from a first position on the end face of the inner cable and at least one signal wire core extending from a second position on the end face of the inner cable. Each current wire core group is a combination of at least two single wire cores, and the wire cores in each current wire core group are spaced apart and arranged to be connected to the same solder pad. The length of the second connecting strip is greater than that of the first connecting strip. The length of the first connecting strip is set such that when folded, the entire top surface of the first auxiliary charger can be flatly stacked on the upper surface of the main charger. The length of the second connecting strip is set such that when folded, the entire top surface of the second auxiliary charger can be flatly stacked on the bottom surface of the first auxiliary charger.

9. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The first connecting strip has a first main connecting end and a first auxiliary connecting end; the first main connecting end extends into the main charging base and is installed on the main charging base by a first pressure block; the auxiliary connecting end extends into the first auxiliary charging base and is installed on the first auxiliary charging base by a first clip; the first connecting strip has a second main connecting end and a second auxiliary connecting end; the second main connecting end extends into the main charging base and is installed on the main charging base by a second pressure block; the second auxiliary connecting end extends into the second auxiliary charging base and is installed on the second auxiliary charging base by a second clip.

10. The three-in-one wireless charger with folding on the same side as described in claim 1, characterized in that, The main charging unit is used to charge the earphones; the first auxiliary charging unit is used to charge the mobile phone, and the second auxiliary charging unit is used to charge the watch; the main circuit board is an earphone charging circuit board, and the first auxiliary charging unit contains a mobile phone charging circuit board; the mobile phone charging circuit board and the watch charging module are respectively electrically connected to the main circuit board.

Images