A three-in-one wireless charging device

Abstract

A three-in-one wireless charging device includes a circuit board and a wireless charging shell, the wireless charging shell includes a first shell, a second shell and a third shell, the circuit board includes a first circuit board, a second circuit board and a third circuit board, the first circuit board, the second circuit board and the third circuit board are respectively arranged in the first shell, the second shell and the third shell, the first shell is rotatably connected to the top edge of the second shell, the bottom of the first shell is provided with a first metal plate, the third shell is connected with the second shell through a flexible conductive belt, the bottom of the second shell is provided with a receiving groove opening outward, the groove bottom of the receiving groove is provided with a plurality of circumferentially arranged heat dissipation holes, one side of the groove bottom of the receiving groove facing the first shell is provided with a magnet, the third shell is absorbed in the receiving groove through the magnet, and a fixing assembly is arranged in the second shell to position the flexible conductive belt. The device has the characteristics of good heat dissipation effect and strong reliability.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging device technology, specifically to a three-in-one wireless charging device. Background Technology

[0002] Current wireless charging devices generally suffer from low heat dissipation efficiency and insufficient structural reliability. Traditional wireless charging devices often rely solely on the shell for heat dissipation, which can easily lead to overheating, affecting the charging rate, and consequently impacting charging stability and device lifespan. In addition, common flip-type wireless charging devices with conductive strips lack a fixed structure for storage, making the charging unit prone to accidental flipping and detachment during carrying, resulting in damage from impacts. Furthermore, the conductive strip is easily damaged by repeated friction with the shell when the charging unit is repeatedly flipped and unfolded during use. Therefore, there is an urgent need for a three-in-one wireless charging device to solve the above problems. Utility Model Content

[0003] In view of this, a three-in-one wireless charging device with efficient heat dissipation and high reliability is provided.

[0004] A three-in-one wireless charging device includes a circuit board and a wireless charging housing. The wireless charging housing includes a first housing, a second housing, and a third housing. The circuit board includes a first circuit board, a second circuit board, and a third circuit board, which are respectively disposed within the first housing, the second housing, and the third housing. The first housing is rotatably connected to the top edge of the second housing. A first metal plate is disposed at the bottom of the first housing. The third housing is connected to the second housing via a flexible conductive strip. The bottom of the second housing has an outwardly opening receiving groove. The bottom of the receiving groove has multiple circumferentially arranged heat dissipation holes. A magnet is disposed on the side of the bottom of the receiving groove facing the first housing. The third housing is attracted and stored in the receiving groove by the magnet. A fixing component is disposed inside the second housing to position the flexible conductive strip.

[0005] Furthermore, the flexible conductive strip includes a first end electrically connected to the second circuit board and a second end electrically connected to the third circuit board. The fixing component includes a first pressing block and a second pressing block. The first pressing block and the second pressing block are arranged opposite to each other and each of them has a wave-shaped structure on its surface facing the first end. The first pressing block and the second pressing block respectively press against the upper surface and the lower surface of the first end to position the first end.

[0006] Furthermore, the first pressing block and the second pressing block are both connected to or integrally formed with the second housing. The first pressing block and the second pressing block are disposed on the inner wall of the second housing near the first end, and are correspondingly disposed on the upper and lower sides of the first end.

[0007] Furthermore, the first housing is provided with a first shielding component, a first magnetic induction coil, a first heat insulation bracket and a first circuit board arranged sequentially from top to bottom. The first shielding component is located on top of the first magnetic induction coil, and the first magnetic induction coil and the first circuit board are respectively located on the upper and lower sides of the first heat insulation bracket.

[0008] Furthermore, the second housing contains, from top to bottom, a second shielding component, a second magnetic induction coil, a second heat insulation bracket, a second circuit board, a second metal plate, a thermally conductive insulating sheet, and the receiving groove. The second shielding component is located on top of the second magnetic induction coil. The second magnetic induction coil and the second circuit board are respectively located on the upper and lower sides of the second heat insulation bracket. The thermally conductive insulating sheet is located between the second metal plate and the receiving groove. Thermally conductive silicone is provided between the second circuit board and the second metal plate, and the upper and lower surfaces of the thermally conductive silicone are respectively attached to the second circuit board and the second metal plate.

[0009] Furthermore, the second metal plate is provided with a through hole, and the flexible conductive strip includes a first end electrically connected to the second circuit board and a second end electrically connected to the third circuit board. The wire at the first end is electrically connected to the second circuit board through the through hole.

[0010] Furthermore, the bottom of the second housing is provided with a hand-retrieving groove, which is connected to the receiving groove. The third housing is provided with a hand-retrieving flange corresponding to the hand-retrieving groove. At least a finger-width gap is reserved between the hand-retrieving flange and the hand-retrieving groove to facilitate the removal of the third housing from the receiving groove.

[0011] Furthermore, the outer wall of the first housing is provided with an upper vertical groove, and the outer wall of the second housing is provided with a lower vertical groove corresponding to and communicating with the upper vertical groove. The first housing and the second housing are hinged by a rotating assembly. The rotating assembly is installed in the vertical groove formed by the upper vertical groove and the lower vertical groove. The rotating assembly includes a first hinge plate, a second hinge plate, a rotating shaft, and a hinge fixing seat. The first hinge plate and the second hinge plate are connected by the rotating shaft. The first hinge plate is fixedly connected to the first metal plate, and the second hinge plate is fixedly connected to the hinge fixing seat. The hinge fixing seat is fixedly connected to the second housing.

[0012] Furthermore, the hinged mounting base is provided with a through hole, through which the wires of the first circuit board are electrically connected to the second circuit board, and the second housing is provided with a power interface to allow the second circuit board to be connected to an external power source.

[0013] Furthermore, the three-in-one wireless charging device also includes a first wireless charging panel, a second wireless charging panel, and a third wireless charging panel. The first wireless charging panel is used to charge a mobile phone, the second wireless charging panel is used to charge headphones, and the third wireless charging panel is used to charge a watch. The first wireless charging panel, the second wireless charging panel, and the third wireless charging panel are respectively attached to the top of the first housing, the second housing, and the third housing. The areas of the first wireless charging panel, the second wireless charging panel, and the third wireless charging panel are respectively smaller than the top areas of the first housing, the second housing, and the third housing.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: First, the first housing of this three-in-one wireless charging device allows heat to dissipate through a first metal plate at the bottom, and the second housing accelerates air convection by setting heat dissipation holes in the bottom receiving groove, which helps to improve heat dissipation efficiency.

[0015] Secondly, this three-in-one wireless charging device uses a magnetic structure to stably and reliably attach the third housing within the receiving slot, thus avoiding the risk of the third housing detaching from under the second housing during storage. It also employs a fixing component to position the flexible conductive strip, ensuring that when the third housing is repeatedly flipped out of the receiving slot via the flexible conductive strip, the first end of the flexible conductive strip will not be damaged by repeated localized friction with the second housing, thereby improving safety and reliability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a three-in-one wireless charging device according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a three-in-one wireless charging device according to an embodiment of the present invention, viewed from another direction.

[0018] Figure 3 This is a three-dimensional structural diagram of a three-in-one wireless charging device according to an embodiment of the present invention, showing the first shell flipped and unfolded relative to the second shell.

[0019] Figure 4 This is a cross-sectional schematic diagram of a three-in-one wireless charging device according to an embodiment of the present invention.

[0020] In the picture, 1. First housing; 2. Second housing; 3. Third housing; 4. First circuit board; 5. Second circuit board; 6. First fastener; 7. First metal plate; 8. Flexible conductive strip; 9. Receiving groove; 10. Heat dissipation hole; 11. Magnet; 12. First end; 13. Second end; 14. First pressure block; 15. Second pressure block; 16. First shielding component; 17. First magnetic induction coil; 18. First heat insulation bracket; 19. Second shielding component; 20. Second magnetic induction coil 21. Coil; 22. Second heat insulation bracket; 23. Thermally conductive silicone; 24. Second metal plate; 25. Thermally conductive insulating sheet; 26. Through hole; 27. Hand groove; 28. Hand flange; 29. ​​First hinge plate; 30. Rotating shaft; 31. Hinge fixing seat; 32. Through hole; 33. Power interface; 34. First wireless charging panel; 35. Second wireless charging panel; 36. Third wireless charging panel; 37. Second fastener. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4 This illustration shows a three-in-one wireless charging device provided by an embodiment of the present invention, including a circuit board and a wireless charging housing. The wireless charging housing includes a first housing 1, a second housing 2, and a third housing 3. The circuit board includes a first circuit board 4, a second circuit board 5, and a third circuit board, which are respectively disposed within the first housing 1, the second housing 2, and the third housing 3. The first housing 1 is rotatably connected to the top edge of the second housing 2. The bottom of the first housing 1 is provided with a first metal plate 7. The third housing 3 is connected to the second housing 2 via a flexible conductive strip 8. The bottom of the second housing 2 is provided with an outwardly opening receiving groove 9. The bottom of the receiving groove 9 is provided with a plurality of circumferentially arranged heat dissipation holes 10. A magnet 11 is provided on the side of the bottom of the receiving groove 9 facing the first housing 1. The third housing 3 is attracted and housed in the receiving groove 9 by the magnet 11. A fixing component is provided inside the second housing 2 to position the flexible conductive strip 8.

[0023] Specifically, the flexible conductive strip 8 includes a first end 12 electrically connected to the second circuit board 5 and a second end 13 electrically connected to the third circuit board. The fixing component includes a first pressing block 14 and a second pressing block 15. The first pressing block 14 and the second pressing block 15 are arranged opposite to each other, and each of their surfaces facing the first end 12 has a wavy structure. The first pressing block 14 and the second pressing block 15 respectively press against the upper surface and the lower surface of the first end 12 to position the first end 12. In some specific embodiments, the wavy first pressing block 14 and the wavy second pressing block 15 are in contact with the flexible conductive strip 8. The wavy surface is polished smooth to avoid burrs damaging the flexible conductive strip 8. When the third housing 3 is stored in the receiving groove 9, the third wireless charging panel 36 faces the opening of the receiving groove 9, i.e., downward. In use, the third housing 3 is flipped out of the receiving groove 9 through the flexible conductive strip 8, so that the third wireless charging panel 36 is placed upward to facilitate charging the watch. The wavy first pressure block 14 and second pressure block 15 are used to clamp and position the flexible conductive strip 8 on both sides. The wavy structure disperses stress and positions the flexible conductive strip 8 through multi-point contact, preventing the flexible conductive strip 8 from being damaged or broken due to localized concentrated force when repeatedly flipped.

[0024] More specifically, the first pressing block 14 and the second pressing block 15 are both connected to or integrally formed with the second housing 2. The connection method between the first pressing block 14, the second pressing block 15 and the second housing 2 is preferably bolt fixing, snap-fit ​​connection or injection molding. The first pressing block 14 and the second pressing block 15 are disposed on the inner wall of the second housing 2 near the first end 12, and are correspondingly disposed on the upper and lower sides of the first end 12.

[0025] Specifically, the first housing 1 is provided with a first shielding member 16, a first magnetic induction coil 17, a first heat insulation bracket 18 and a first circuit board 4 arranged sequentially from top to bottom. The first shielding member 16 is located on top of the first magnetic induction coil 17 to reduce electromagnetic interference. The first magnetic induction coil 17 and the first circuit board 4 are respectively located on the upper and lower sides of the first heat insulation bracket 18.

[0026] In some specific embodiments, the heat generated by the first circuit board 4, the main heat source inside the first housing 1, is blocked by the first heat insulation bracket 18, allowing the heat to be transferred downwards. The heat is diffused through the first metal plate 7 at the bottom of the first housing 1, which helps to improve the heat dissipation efficiency. More specifically, the first heat insulation bracket 18 is preferably made of PVC plastic, and the first metal plate 7 is preferably made of aluminum. More specifically, the first metal plate 7 is a sheet-like structure. The sheet-like first metal plate 7 covers and is connected to the bottom of the first housing 1. When heat is transferred to the first metal plate 7, the heat is absorbed by the entire surface of the first metal plate 7 and transferred outwards. The first metal plate 7 replaces the plastic bottom shell of the traditional wireless charging housing. Because the thermal conductivity of aluminum is significantly better than that of plastic, the heat dissipation efficiency is significantly improved.

[0027] Specifically, the second housing 2 is provided with, from top to bottom, a second shielding member 19, a second magnetic induction coil 20, a second heat insulation bracket 21, a second circuit board 5, a second metal plate 23, a thermally conductive insulating sheet 24, and the receiving groove 9. The second shielding member 19 is located on top of the second magnetic induction coil 20 to reduce electromagnetic interference. The second magnetic induction coil 20 and the second circuit board 5 are respectively located on the upper and lower sides of the second heat insulation bracket 21. The thermally conductive insulating sheet 24 is located between the second metal plate 23 and the receiving groove 9. A thermally conductive silicone 22 is provided between the second circuit board 5 and the second metal plate 23. The upper and lower surfaces of the thermally conductive silicone 22 are respectively attached to the second circuit board 5 and the second metal plate 23.

[0028] In some specific embodiments, the heat generated by the second circuit board 5, the main heat source inside the second housing 2, is blocked by the second heat insulation bracket 21, so that the heat is transferred downward. The heat is transferred to the receiving groove 9 in sequence through the thermally conductive silicone 22, the second metal plate 23 and the thermally conductive insulating sheet 24, and then dissipated through the heat dissipation holes 10 at the bottom of the receiving groove 9, which avoids heat accumulation, accelerates air convection, and helps to improve heat dissipation efficiency. More specifically, the second heat insulation bracket 21 is preferably made of PVC plastic, and the second metal plate 23 is preferably made of aluminum plate.

[0029] More specifically, the second metal plate 23 is provided with a through hole 25, and the flexible conductive strip 8 includes a first end 12 electrically connected to the second circuit board 5 and a second end 13 electrically connected to the third circuit board. The wire of the first end 12 is electrically connected to the second circuit board 5 through the through hole 25.

[0030] Specifically, the bottom of the second housing 2 is provided with a hand-retrieving groove 26, which is connected to the receiving groove 9. The third housing 3 is provided with a hand-retrieving flange 27 corresponding to the hand-retrieving groove 26. At least a finger-width gap is reserved between the hand-retrieving flange 27 and the hand-retrieving groove 26 to facilitate the removal of the third housing 3 from the receiving groove 9.

[0031] Specifically, the outer wall of the first housing 1 is provided with an upper vertical groove, and the outer wall of the second housing 2 is provided with a lower vertical groove corresponding to and communicating with the upper vertical groove. The first housing 1 and the second housing 2 are hinged by a rotating assembly. The rotating assembly is installed in the vertical groove formed by the upper vertical groove and the lower vertical groove. The rotating assembly includes a first hinge plate 28, a second hinge plate 29, a rotating shaft 30, and a hinge fixing seat 31. The first hinge plate 28 and the second hinge plate 29 are connected by the rotating shaft 30. The first hinge plate 28 is fixedly connected to the first metal plate 7 by a first fastener 6. The second hinge plate 29 is fixedly connected to the hinge fixing seat 31 by a second fastener 37. The hinge fixing seat 31 is fixedly connected to the second housing 2.

[0032] More specifically, the hinged fixing base 31 is provided with a through hole 32, through which the wires of the first circuit board 4 are electrically connected to the second circuit board 5. The second housing 2 is provided with a power interface 33 to allow the second circuit board 5 to be connected to an external power source.

[0033] Specifically, the three-in-one wireless charging device further includes a first wireless charging panel 34, a second wireless charging panel 35, and a third wireless charging panel 36. The first wireless charging panel 34 is used to charge a mobile phone, the second wireless charging panel 35 is used to charge headphones, and the third wireless charging panel 36 is used to charge a watch. The first wireless charging panel 34, the second wireless charging panel 35, and the third wireless charging panel 36 are respectively attached to the top of the first housing 1, the second housing 2, and the third housing 3. The areas of the first wireless charging panel 34, the second wireless charging panel 35, and the third wireless charging panel 36 are respectively smaller than the top areas of the first housing 1, the second housing 2, and the third housing 3.

[0034] In summary, the first housing 1 of this three-in-one wireless charging device allows heat to dissipate through the first metal plate 7 at the bottom, and the second housing 2 accelerates air convection by providing heat dissipation holes 10 in the bottom receiving groove 9, which helps improve heat dissipation efficiency. This three-in-one wireless charging device uses a magnetic structure to stably and reliably attach and fix the third housing 3 in the receiving groove 9, thereby avoiding the risk of the third housing 3 falling out from under the second housing 2 when stored. It also uses a fixing component to position the flexible conductive strip 8, so that when the third housing 3 is repeatedly flipped out of the receiving groove 9 through the flexible conductive strip 8 for use, the first end 12 of the flexible conductive strip 8 will not be damaged by repeated local friction with the second housing 2, thus improving safety and reliability.

[0035] 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 charging device, comprising a circuit board and a wireless charging housing, characterized in that, The wireless charging housing includes a first housing, a second housing, and a third housing. The circuit board includes a first circuit board, a second circuit board, and a third circuit board, which are respectively disposed within the first housing, the second housing, and the third housing. The first housing is rotatably connected to the top edge of the second housing. A first metal plate is disposed at the bottom of the first housing. The third housing is connected to the second housing via a flexible conductive strip. The bottom of the second housing has an outwardly opening receiving groove. The bottom of the receiving groove has multiple circumferentially arranged heat dissipation holes. A magnet is disposed on the side of the bottom of the receiving groove facing the first housing. The third housing is attracted and stored in the receiving groove by the magnet. A fixing component is disposed inside the second housing to position the flexible conductive strip.

2. The three-in-one wireless charging device as described in claim 1, characterized in that, The flexible conductive strip includes a first end electrically connected to the second circuit board and a second end electrically connected to the third circuit board. The fixing component includes a first pressing block and a second pressing block. The first pressing block and the second pressing block are arranged opposite to each other and each of them has a wave-shaped structure on the surface facing the first end. The first pressing block and the second pressing block respectively press against the upper surface and the lower surface of the first end to position the first end.

3. The three-in-one wireless charging device as described in claim 2, characterized in that, The first pressing block and the second pressing block are both connected to or formed integrally with the second housing. The first pressing block and the second pressing block are disposed on the inner wall of the second housing near the first end, and are correspondingly disposed on the upper and lower sides of the first end.

4. The three-in-one wireless charging device as described in claim 1, characterized in that, The first housing contains, from top to bottom, a first shield, a first magnetic induction coil, a first heat insulation bracket, and a first circuit board. The first shield is located on top of the first magnetic induction coil, and the first magnetic induction coil and the first circuit board are respectively located on the upper and lower sides of the first heat insulation bracket.

5. A three-in-one wireless charging device as described in claim 1, characterized in that, The second housing contains, from top to bottom, a second shielding component, a second magnetic induction coil, a second heat insulation bracket, a second circuit board, a second metal plate, a thermally conductive insulating sheet, and the receiving groove. The second shielding component is located on top of the second magnetic induction coil. The second magnetic induction coil and the second circuit board are respectively located on the upper and lower sides of the second heat insulation bracket. The thermally conductive insulating sheet is located between the second metal plate and the receiving groove. Thermally conductive silicone is provided between the second circuit board and the second metal plate, and the upper and lower surfaces of the thermally conductive silicone are respectively attached to the second circuit board and the second metal plate.

6. A three-in-one wireless charging device as described in claim 5, characterized in that, The second metal plate has a through hole, and the flexible conductive strip includes a first end electrically connected to the second circuit board and a second end electrically connected to the third circuit board. The wire at the first end is electrically connected to the second circuit board through the through hole.

7. A three-in-one wireless charging device as described in claim 1, characterized in that, The bottom of the second housing is also provided with a hand-retrieving groove, which is connected to the receiving groove. The third housing is provided with a hand-retrieving flange corresponding to the hand-retrieving groove. At least a finger-width gap is reserved between the hand-retrieving flange and the hand-retrieving groove to facilitate the removal of the third housing from the receiving groove.

8. A three-in-one wireless charging device as described in claim 1, characterized in that, The outer wall of the first housing is provided with an upper vertical groove, and the outer wall of the second housing is provided with a lower vertical groove corresponding to and communicating with the upper vertical groove. The first housing and the second housing are hinged by a rotating assembly. The rotating assembly is installed in the vertical groove formed by the upper vertical groove and the lower vertical groove. The rotating assembly includes a first hinge plate, a second hinge plate, a rotating shaft, and a hinge fixing seat. The first hinge plate and the second hinge plate are connected by the rotating shaft. The first hinge plate is fixedly connected to the first metal plate, and the second hinge plate is fixedly connected to the hinge fixing seat. The hinge fixing seat is fixedly connected to the second housing.

9. A three-in-one wireless charging device as described in claim 8, characterized in that, The hinged mounting base is provided with a through hole, through which the wires of the first circuit board are electrically connected to the second circuit board. The second housing is provided with a power interface to allow the second circuit board to be connected to an external power source.

10. A three-in-one wireless charging device as described in claim 1, characterized in that, The three-in-one wireless charging device further includes a first wireless charging panel, a second wireless charging panel, and a third wireless charging panel. The first wireless charging panel is used to charge a mobile phone, the second wireless charging panel is used to charge headphones, and the third wireless charging panel is used to charge a watch. The first, second, and third wireless charging panels are respectively attached to the top of the first, second, and third housings, and the areas of the first, second, and third wireless charging panels are respectively smaller than the top areas of the first, second, and third housings.

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