Wireless charging device capable of automatically resetting by overturning and lifting
Through the design of the damping shaft, damping connecting plate and torsion spring structure, combined with the magnet attachment and floating structure, the cumbersome operation and wear problems of traditional wireless charging devices are solved, and a safe and reliable automatic reset and stable charging effect are achieved.
Patent Information
- Application Number
- CN202510598696.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-08-15
AI Technical Summary
Traditional wireless charging devices need to be manually operated during folding or rely on a single spring to reset, resulting in cumbersome operation and easy wear of the charging body, and there is a risk of hard squeeze when the single spring fails.
The damping shaft, damping connecting piece and torsion spring structure design is adopted to automatically reset the second charging body when the shell is flipped, and precise attachment and stable locking are achieved through multiple sets of magnets. The charging body height is adjusted in combination with the floating structure to maintain stable contact.
It realizes safe, reliable and automatic reset of the charging body, reduces wear risks, improves charging stability and shock resistance, is easy to operate and stable in structure.
Smart Images
Figure CN120498069A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wireless charging, and in particular to a wireless charging device that can be flipped, lifted and automatically reset. Background Art
[0002] Wireless charging devices have been widely accepted and recognized by people because of their convenient and fast charging. The principle of wireless charging is the principle of electromagnetic induction. Energy is transmitted between the wireless charger and the electronic device to be charged by the magnetic field. There is no need for a wire connection between the wireless charger and the electronic device to be charged, and the degree of intelligence is high. However, traditional foldable wireless charging devices usually require users to manually press the charging body into the storage slot when folding, or rely on a single spring to provide elastic force, and the charging body elastically returns to the storage slot under the squeezing of other components. The former is cumbersome to operate, and the latter may cause wear of the charging body due to multiple squeezing. Moreover, if the single spring fails, the elastic squeezing becomes hard squeezing, and the charging body is at risk of damage. Therefore, there is an urgent need for a wireless charging device with automatic resetting that can be flipped and lifted to solve the above problems. Summary of the Invention
[0003] In view of this, a safe, reliable, easy-to-operate wireless charging device with automatic reset upon flipping and lifting is provided.
[0004] A wireless charging device with flip-up and automatic reset, comprising a first shell, a second shell, a first charging body, a second charging body, a damping shaft, a damping seat, a charging body connecting seat, a first torsion spring and a damping connecting piece, wherein the first shell is rotatably connected to the second shell via the damping shaft, the first shell comprises a first inner shell, the second shell comprises a second inner shell and a second accommodating groove provided on the second inner shell, when the first inner shell and the second inner shell are flipped to an included angle of 180°, the device is in an open state, the second charging body is parallel and partially protrudes from the second accommodating groove, and there is a gap between the groove wall and the groove bottom of the second accommodating groove, the damping shaft is fixed to the damping seat, the damping seat is connected to the charging body connecting seat, the charging body connecting seat is connected to the second charging body via the first shaft, the first shaft is sleeved with the first torsion spring, and when the first torsion spring is extended The second charging body is raised, one end of the damping connecting piece is connected to the damping shaft in a damping rotation manner, and the other end is fixed to the second shell. The first damping force between the damping connecting piece and the damping shaft is less than the second damping force of the damping shaft so that the second shell and the second charging body rotate in steps. The second shell and the second inner shell drive the damping connecting piece to overcome the first damping force and rotate first. When the second shell and the second inner shell rotate to contact the second charging body, they overcome the second damping force and cause the second charging body to flip. At the same time, the second charging body overcomes the action force of the first torsion spring and is screwed into the second accommodating groove so that the second charging body can be completely accommodated in the interior of the second accommodating groove, and continues to push the second shell to flip. The second shell drives the second charging body in the second accommodating groove to flip together until the two inner shells are fitted together, and the device is in a folded state.
[0005] Furthermore, the wireless charging device also includes a flip spring, a first accommodating groove is provided on the first inner shell, the first charging body is rotated out or received in the first accommodating groove through the flip axis, one end of the flip spring is connected to the flip axis, and the other end is against the first shell or the first inner shell, and the flip spring is constructed to be pressurized in the folded state and automatically reset in the open state so that the first charging body automatically bounces up around the flip axis.
[0006] Furthermore, one end of the flip shaft has a straight-line opening, one end of the flip spring is inserted into the straight-line opening, and the other end abuts against the bottom surface of the first inner shell; the flip spring is in the shape of an arc spring.
[0007] Furthermore, the first charging body has a rotating connection part, the first end of the rotating connection part has a charging body, and the second end is penetrated by the flip shaft, and the flip shaft is located below the first inner shell. The first accommodating groove is provided with a through hole and a limiting wall corresponding to the second end position of the rotating connection part. The second end of the first charging body passes through the through hole to connect to the flip shaft, and the limiting wall is provided above the through hole to limit the standing angle of the first charging body after it automatically pops up.
[0008] Furthermore, the wireless charging device also includes a fixing seat, which is fixed to the second charging body, and the fixing seat is connected to the charging body connecting seat through the first rotating shaft. One end of the first torsion spring presses against the fixing seat, and the other end presses against the charging body connecting seat; the fixing seat is vertically arranged, and the charging body connecting seat is horizontally arranged; the two torsion walls of the first torsion spring are basically at right angles.
[0009] Furthermore, the damping seat is connected to the charging body connecting seat through a second rotating shaft, and a second torsion spring is mounted on the second rotating shaft. One end of the second torsion spring presses the damping seat, and the other end presses the charging body connecting seat. The second torsion spring enables the charging body connecting seat to rotate relative to the damping seat and elastically reset. When the wireless charging device is in an open state, the second charging body is pressed or released after pressing. The second charging body can float up and down under the linkage action of the first torsion spring and the second torsion spring, and the upper surface of the second charging body can be level with the upper surface of the second inner shell during the up and down floating process.
[0010] Furthermore, the wireless charging device also includes a main circuit board and a main magnetic induction coil, the second shell also includes a second outer shell, the second inner shell and the second outer shell are fixed together to form a hollow chamber, the damping shaft, damping connecting plate, damping seat and main circuit board are arranged in the hollow chamber, the main magnetic induction coil is arranged in the second charging body, a wire hole is provided at the bottom of the second charging body, and a through hole is provided at the bottom of the second accommodating groove, the wires of the main magnetic induction coil pass through the wire hole and the through hole in turn into the hollow chamber and are electrically connected to the wires of the main circuit board.
[0011] Furthermore, the second charging body has an annular magnet, and a sheet groove is provided on the bottom surface of the first inner shell, in which a sheet-shaped magnetic attraction body is fixed. When the wireless charging device is folded, the position of the sheet-shaped magnetic attraction body corresponds to the annular magnet; a first magnet is fixed on the two outer corners of the bottom surface of the first inner shell, and a second magnet is fixed on the two outer corners of the bottom surface of the second inner shell. When the wireless charging device is folded, the first inner shell is tightly fitted with the second inner shell through the magnetic attraction of the first magnet and the second magnet.
[0012] Furthermore, the first shell and the second shell are connected through a damping coupling, the damping coupling is provided with a damping hole, a damping friction part is assembled in the damping hole, the damping friction part is a ring-like structure, the damping shaft is passed through the damping friction part and is dampingly connected to the damping friction part, and the damping force of the damping shaft comes from the friction force between the outer wall of the damping shaft and the inner wall of the damping friction part.
[0013] Furthermore, the first shell and the damping coupling are rotatably connected in a damping manner through a pair of damping shafts, and the second shell and the damping coupling are also rotatably connected in a damping manner through a pair of damping shafts, so that when the wireless charging device is opened or folded, the first shell and the second shell are both protected by the damping force.
[0014] Compared with the prior art, the present invention has at least the following beneficial effects: First, this flip-up and lift-automatic reset wireless charging device realizes the automatic reset of the second charging body during the folding process through the structural design of the damping shaft, the damping connecting plate and the first torsion spring. This structural design enables the second charging body to automatically reset to the inside of the second receiving groove by pushing the second shell when the shell of the wireless charging device is flipped. Unlike traditional wireless charging devices that rely on a single spring reset, the second charging body does not rely on the elastic reset of mutual pressure with other components of the wireless charging device, which helps to avoid wear or dislocation of components of the charging body due to squeezing, helps to reduce the risk of damage to the charging body, and is safe, reliable and easy to operate.
[0015] Second, this flip-up, lift-and-reset wireless charging device uses the first torsion spring and the second torsion spring to allow the second charging body to float up and down when pressed in the open state. The elastic support provided by the double torsion springs enables the charging body to adaptively adjust its height in the vertical direction, ensuring that the surface of the charging body is always level with the upper surface of the second inner shell. This floating structure significantly improves charging stability. If the thickness of the wireless charging device is uneven during charging, the floating structure can automatically adjust when the wireless charging device is placed on the second charging body to keep the charging contact surface stable.
[0016] Third, this flip-up, lift-and-reset wireless charging device uses multiple sets of magnets to achieve precise attraction and secure locking when folded, improving shock resistance and structural stability when carried. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of an open state of a flip-up, lift-up and automatic reset wireless charging device according to an embodiment of the present invention.
[0018] Figure 2 It is an exploded schematic diagram of the open state of a flip-up, lift-and-reset wireless charging device according to an embodiment of the present invention.
[0019] Figure 3 It is a cross-sectional schematic diagram of an open state of a flip-up, lift-up, and automatically reset wireless charging device according to an embodiment of the present invention.
[0020] Figure 4 It is a three-dimensional schematic diagram of a flip-up, lift-up and automatic-reset wireless charging device in a folded state according to an embodiment of the present invention.
[0021] In the figure, 1. First shell; 2. Second shell; 3. First charging body; 4. Second charging body; 5. Damping shaft; 6. Damping seat; 7. Charging body connecting seat; 8. First torsion spring; 9. Damping connecting plate; 10. First inner shell; 11. First accommodating groove; 12. Second inner shell; 13. Second accommodating groove; 14. Flip spring; 15. Flip shaft; 16. Through hole; 17. Limiting wall; 18. Fixed seat; 19. First rotating shaft; 20. Second rotating shaft; 21. Second torsion spring; 22. Main circuit board; 23. Main magnetic induction coil; 24. Ring magnet; 25. Sheet magnet; 26. First magnet; 27. Second magnet; 28. Damping coupling; 29. Damping friction member. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0023] See also Figures 1 to 4, showing a flip-up, lift-and-reset wireless charging device provided by an embodiment of the present invention, comprising a first shell 1, a second shell 2, a first charging body 3, a second charging body 4, a damping shaft 5, a damping seat 6, a charging body connecting seat 7, a first torsion spring 8 and a damping connecting piece 9, the first shell 1 is rotatably connected to the second shell 2 through the damping shaft 5, the first shell 1 comprises a first inner shell 10, the second shell 2 comprises a second inner shell 12 and a second accommodating groove 13 provided on the second inner shell 12, when the first inner shell 10 and the second inner shell 12 are flipped to an included angle of 180°, the device is in an open state, the second charging body 4 is parallel to and partially protrudes from the second accommodating groove 13, and has a gap with the groove wall and groove bottom of the second accommodating groove 13, the damping shaft 5 is fixed to the damping seat 6, the damping seat 6 is connected to the charging body connecting seat 7, the charging body connecting seat 7 is connected to the second charging body 4 through the first rotating shaft 19, and the first rotating shaft 19 is sleeved with the first torsion spring Spring 8, when the first torsion spring 8 is extended, the second charging body 4 is in a lifted state, one end of the damping connecting piece 9 is connected to the damping shaft 5 in a damped rotation manner, and the other end is fixed to the second shell 2, the first damping force between the damping connecting piece 9 and the damping shaft 5 is less than the second damping force of the damping shaft 5 so that the second shell 2 and the second charging body 4 rotate in steps, the second shell 2 and the second inner shell 12 drive the damping connecting piece 9 to overcome the first damping force and rotate first, when the second shell 2 and the second inner shell 12 rotate to contact the second charging body 4, they overcome the second damping force and cause the second charging body 4 to flip, at the same time, the second charging body 4 overcomes the force of the first torsion spring 8 and is screwed into the second accommodating groove 13, so that the second charging body 4 can be completely accommodated in the inside of the second accommodating groove 13, and continue to push the second shell 2 to flip, and the second shell 2 drives the second charging body 4 in the second accommodating groove 13 to flip together until the two inner shells are in contact, and the device is in a folded state.
[0024] In some specific embodiments, the wireless charging device transitions from the open state to the folded state in two stages. The first stage involves manually pushing the second housing 2 to flip. Because the first damping force is smaller than the second damping force, the first damping force is overcome first, pushing the second housing 2, which is fixed to the damping connecting plate 9, to flip. The second charging element 4, which is connected to the damping shaft 5, remains stationary. At this point, the second housing 2 and the second charging element 4 engage in relative motion. The flipping of the second housing 2 causes the bottom of the second receiving groove 13 to obliquely contact the bottom surface of the end of the second charging element 4, causing one end of the second charging element 4 to enter the second receiving groove 13. Continued flipping causes the second housing 2 to shift from contact to pressing against one end of the second charging element 4. The other end of the second charging element 4 automatically rotates into the second receiving groove 13 under the action of the first torsion spring 8, at which point the second charging element 4 is completely contained within the second receiving groove 13. The second stage then begins. Further pushing of the second housing 2 overcomes the second damping force, causing the second housing 2 and the second charging element 4 to flip synchronously to the folded state, where the two inner shells are affixed.
[0025] Specifically, the wireless charging device also includes a flip spring 14, a first accommodating groove 11 is provided on the first inner shell 10, and the first charging body 3 is rotated out or received in the first accommodating groove 11 through a flip axis 15. One end of the flip spring 14 is connected to the flip axis 15, and the other end is against the first shell 1 or the first inner shell 10. The flip spring 14 is constructed to be pressurized in the folded state and automatically reset in the open state so that the first charging body 3 automatically bounces up around the flip axis 15.
[0026] More specifically, one end of the flip shaft 15 has a straight opening, one end of the flip spring 14 is inserted into the straight opening, and the other end abuts against the bottom surface of the first inner shell 10; the flip spring 14 is in an arc-shaped spring shape.
[0027] More specifically, the first charging body 3 has a rotating connection portion, the first end of which has a charging body, and the second end of which is provided with the flip shaft 15. The flip shaft 15 is located below the first inner shell 10. The first accommodating groove 11 is provided with a through hole 16 and a limiting wall 17 corresponding to the second end of the rotating connection portion. The second end of the rotating connection portion of the first charging body 3 passes through the through hole 16 to connect to the flip shaft 15. The limiting wall 17 is provided above the through hole 16 to limit the upright angle of the first charging body 3 after it automatically pops up. In some specific embodiments, when the wireless charging device is turned on, the first charging body 3 automatically pops up until it presses against the limiting wall 17.
[0028] Specifically, the wireless charging device also includes a fixed seat 18, which is fixed to the second charging body 4. The fixed seat 18 is connected to the charging body connecting seat 7 through the first rotating shaft 19. One end of the first torsion spring 8 presses against the fixed seat 18, and the other end presses against the charging body connecting seat 7; the fixed seat 18 is vertically arranged, and the charging body connecting seat 7 is horizontally arranged; the two torsion walls of the first torsion spring 8 are basically at right angles.
[0029] Specifically, the damping seat 6 is connected to the charging body connection seat 7 via a second rotating shaft 20. A second torsion spring 21 is mounted on the second rotating shaft 20. One end of the second torsion spring 21 presses against the damping seat 6, while the other end presses against the charging body connection seat 7. The second torsion spring 21 enables the charging body connection seat 7 to rotate relative to the damping seat 6 and elastically return to its original position. When the second charging body 4 is pressed, the charging body connection seat 7 rotates downward, driving the second charging body 4 downward. After the pressing force is released, the second torsion spring 21 drives the charging body connection seat 7 and the damping seat 6 to return to their initial positions, and the second charging body 4 also rises to its initial position. More specifically, when the wireless charging device is in the open state, pressing or releasing the second charging body 4 causes the second charging body 4 to float up and down under the coordinated action of the first torsion spring 8 and the second torsion spring 21. During this floating process, the upper surface of the second charging body 4 can be level with the upper surface of the second inner shell 12. In some specific embodiments, the second charging body 4 adaptively adjusts its height in the vertical direction. Even if the thickness and weight of the electronic device to be charged are uneven, it will not affect the charging stability because the floating structure can automatically adjust to keep the charging contact surface stable. Specifically, the wireless charging device also includes a main circuit board 22 and a main magnetic induction coil 23. The second shell 2 also includes a second outer shell. The second inner shell 12 and the second outer shell are fixed together to form a hollow chamber. The damping shaft 5, the damping connecting plate 9, the damping seat 6 and the main circuit board 22 are arranged in the hollow chamber. The main magnetic induction coil 23 is arranged in the second charging body 4. A wire hole is provided at the bottom of the second charging body 4, and a through hole is provided at the bottom of the second accommodating groove 13. The wires of the main magnetic induction coil 23 pass through the wire hole and the through hole in turn into the hollow chamber and are electrically connected to the wires of the main circuit board 22.
[0030] Specifically, the second charging body 4 has an annular magnet 24, and a sheet groove is provided on the bottom surface of the first inner shell 10, in which a sheet-shaped magnetic attraction body 25 is fixed. When the wireless charging device is folded, the position of the sheet-shaped magnetic attraction body 25 corresponds to the annular magnet 24; a first magnet 26 is fixed on the two outer corners of the bottom surface of the first inner shell 10, and a second magnet 27 is fixed on the two outer corners of the bottom surface of the second inner shell 12. When the wireless charging device is folded, the first inner shell 10 is tightly fitted with the second inner shell 12 through the magnetic attraction of the first magnet 26 and the second magnet 27.
[0031] In some specific embodiments, the sheet-like magnet 25 and the annular magnet 24 are magnetically attracted to each other when folded, which can prevent the shell from accidentally popping open. At the same time, the first magnet 26 and the second magnet 27 are respectively provided at the outer corners of the first inner shell 10 and the second inner shell 12. When folded, the first magnet 26 and the second magnet 27 are symmetrically attracted to each other to enhance the closing strength and make the shell fit tightly. More specifically, the sheet-like magnet 25 is preferably a silicon steel sheet, and the annular magnet 24, the first magnet 26 and the second magnet 27 are preferably magnets made of strong magnetic materials.
[0032] Specifically, the first shell 1 and the second shell 2 are connected through a damping coupling 28. The damping coupling 28 is provided with a damping hole. A damping friction member 29 is assembled in the damping hole. The damping friction member 29 is a ring-like structure. The damping shaft 5 is passed through the damping friction member 29 and is dampingly connected to the damping friction member 29. The damping force of the damping shaft 5 comes from the friction between the outer wall of the damping shaft 5 and the inner wall of the damping friction member 29.
[0033] More specifically, the first shell 1 is rotatably connected to the damping coupling 28 via a pair of damping shafts 5, and the second shell 2 is rotatably connected to the damping coupling 28 via a pair of damping shafts 5, so that when the wireless charging device is opened or folded, the first shell 1 and the second shell 2 are both protected by the damping force.
[0034] In summary, this flip-up and lift automatic reset wireless charging device realizes the automatic reset of the second charging body 4 during the folding process through the structural design of the damping shaft 5, the damping connecting piece 9 and the first torsion spring 8. This structural design enables the second charging body 4 to automatically reset to the inside of the second receiving groove 13 by pushing the second shell 2 when the shell of the wireless charging device is flipped. Unlike the traditional wireless charging device that relies on a single spring reset, the second charging body 4 is not elastically reset by pressing against other parts of the wireless charging device, which is beneficial to avoid wear or dislocation of components of the charging body due to extrusion, and is beneficial to reducing the risk of damage to the charging body. It is safe, reliable and easy to operate. Simple; at the same time, the wireless charging device uses the first torsion spring 8 and the second torsion spring 21 to allow the second charging body 4 to float up and down when pressed in the open state. The elastic support provided by the double torsion springs enables the charging body to adaptively adjust its height in the vertical direction, ensuring that the surface of the charging body is always level with the upper surface of the second inner shell 12. This floating structure significantly improves the charging stability. If the thickness of the wireless charging device is uneven during charging, the floating structure can automatically adjust to keep the charging contact surface stable when the wireless charging device is placed on the second charging body 4; in addition, the wireless charging device also uses multiple sets of magnets to achieve precise attraction and firm locking when folded, which improves the shock resistance and structural stability when carried.
[0035] It should be noted that the present invention is not limited to the above-mentioned embodiments. Based on the creative spirit of the present invention, those skilled in the art can also make other changes. These changes made based on the creative spirit of the present invention should be included in the scope of protection required by the present invention.
Claims
1. A wireless charging device with automatic reset upon flipping and lifting, characterized in that: The device comprises a first shell, a second shell, a first charging body, a second charging body, a damping shaft, a damping seat, a charging body connecting seat, a first torsion spring and a damping connecting piece. The first shell is rotatably connected to the second shell through the damping shaft. The first shell comprises a first inner shell. The second shell comprises a second inner shell and a second accommodating groove provided on the second inner shell. When the first inner shell and the second inner shell are flipped to an included angle of 180°, the device is in an open state. The second charging body is parallel to and partially protrudes from the second accommodating groove, and there is a gap between the second charging body and the groove wall and the groove bottom of the second accommodating groove. The damping shaft is fixed to the damping seat. The damping seat is connected to the charging body connecting seat. The charging body connecting seat is connected to the second charging body through the first shaft. The first shaft is sleeved with the first torsion spring. When the first torsion spring is stretched, the second charging body is in an open state. In the lifted state, one end of the damping connecting piece is connected to the damping shaft in a damping rotational manner, and the other end is fixed to the second shell. The first damping force between the damping connecting piece and the damping shaft is less than the second damping force of the damping shaft so that the second shell and the second charging body rotate in steps. The second shell and the second inner shell drive the damping connecting piece to overcome the first damping force and rotate first. When the second shell and the second inner shell rotate to contact the second charging body, they overcome the second damping force and cause the second charging body to flip. At the same time, the second charging body overcomes the action force of the first torsion spring and is screwed into the second receiving groove so that the second charging body can be completely accommodated in the interior of the second receiving groove, and continues to push the second shell to flip. The second shell drives the second charging body in the second receiving groove to flip together until the two inner shells are fitted together, and the device is in a folded state.
2. The flip-up, lift-up, and automatic-reset wireless charging device according to claim 1, wherein: The wireless charging device also includes a flip spring, a first accommodating groove is provided on the first inner shell, and the first charging body is rotated out or stored in the first accommodating groove through the flip axis. One end of the flip spring is connected to the flip axis, and the other end is against the first shell or the first inner shell. The flip spring is constructed to be pressurized in the folded state and automatically reset in the open state so that the first charging body automatically bounces up around the flip axis.
3. The flip-up, lift-up and automatic reset wireless charging device according to claim 2, characterized in that: One end of the flip shaft has a straight-line opening, one end of the flip spring is inserted into the straight-line opening, and the other end abuts against the bottom surface of the first inner shell; the flip spring is in an arc-shaped spring shape.
4. The flip-up, lift-up, and automatic-reset wireless charging device according to claim 2, wherein: The first charging body has a rotating connection part, the first end of the rotating connection part has a charging body, and the second end is penetrated by the flip shaft, and the flip shaft is located below the first inner shell. The first accommodating groove is provided with a through hole and a limiting wall corresponding to the second end position of the rotating connection part. The second end of the first charging body passes through the through hole to connect to the flip shaft. The limiting wall is provided above the through hole to limit the standing angle of the first charging body after it automatically pops up.
5. The flip-up, lift-up and automatic reset wireless charging device according to claim 1, characterized in that: The wireless charging device also includes a fixing seat, which is fixed to the second charging body. The fixing seat is connected to the charging body connecting seat through the first rotating shaft. One end of the first torsion spring presses against the fixing seat, and the other end presses against the charging body connecting seat; the fixing seat is vertically arranged, and the charging body connecting seat is horizontally arranged; the two torsion walls of the first torsion spring are basically at right angles.
6. The flip-up, lift-up and automatic reset wireless charging device according to claim 1, characterized in that: The damping seat is connected to the charging body connecting seat through a second rotating shaft, and a second torsion spring is mounted on the second rotating shaft. One end of the second torsion spring presses the damping seat, and the other end presses the charging body connecting seat. The second torsion spring enables the charging body connecting seat to rotate relative to the damping seat and elastically reset. When the wireless charging device is in the open state, the second charging body is pressed or released after pressing. The second charging body can float up and down under the linkage action of the first torsion spring and the second torsion spring, and the upper surface of the second charging body can be level with the upper surface of the second inner shell during the floating process.
7. The flip-up, lift-up and automatic reset wireless charging device according to claim 1, characterized in that: The wireless charging device also includes a main circuit board and a main magnetic induction coil. The second shell also includes a second outer shell. The second inner shell and the second outer shell are fixed together to form a hollow chamber. The damping shaft, damping connecting plate, damping seat and main circuit board are arranged in the hollow chamber. The main magnetic induction coil is arranged in the second charging body. A wire hole is provided at the bottom of the second charging body, and a through hole is provided at the bottom of the second accommodating groove. The wires of the main magnetic induction coil pass through the wire hole and the through hole in turn into the hollow chamber and are electrically connected to the wires of the main circuit board.
8. The flip-up, lift-up and automatic reset wireless charging device according to claim 1, characterized in that: The second charging body has an annular magnet, and the bottom surface of the first inner shell is provided with a sheet groove, in which a sheet-shaped magnet is fixed. When the wireless charging device is folded, the position of the sheet-shaped magnet corresponds to the annular magnet; a first magnet is fixed on each of the two outer corners of the bottom surface of the first inner shell, and a second magnet is fixed on each of the two outer corners of the bottom surface of the second inner shell. When the wireless charging device is folded, the first inner shell is tightly fitted with the second inner shell through the magnetic attraction of the first magnet and the second magnet.
9. The flip-up, lift-up and automatic reset wireless charging device according to claim 1, characterized in that: The first shell and the second shell are connected through a damping coupling, and the damping coupling is provided with a damping hole, and a damping friction part is assembled in the damping hole. The damping friction part is a ring-like structure, and the damping shaft is passed through the damping friction part and is damping-connected to the damping friction part. The damping force of the damping shaft comes from the friction force between the outer wall of the damping shaft and the inner wall of the damping friction part.
10. The flip-up, lift-up and automatic reset wireless charging device according to claim 9, characterized in that: The first shell and the damping coupling are rotatably connected in a damping manner through a pair of damping shafts, and the second shell and the damping coupling are also rotatably connected in a damping manner through a pair of damping shafts, so that when the wireless charging device is opened or folded, both the first shell and the second shell are protected by the damping force.