Rotary bendable wireless charging device

Abstract

The utility model relates to a rotary type bendable wireless charging device which comprises a flexible supporting piece, a fixed base and a wireless charging body, the fixed base is used for being installed on a fixed face, the wireless charging device further comprises a rotary base, the rotary base is in magnetic connection with the fixed base, and the wireless charging body is arranged on the rotary base. The rotary base can rotate relative to the fixed base, the rotary base is connected to one end of the flexible supporting piece, the rotary base rotates to drive the flexible supporting piece to rotate, and the other end of the flexible supporting piece is rotatably connected with the wireless charging body. The wireless charging body can rotate relative to the flexible supporting piece, the flexible supporting piece is a metal strip coated with soft plastic, the flexible supporting piece can be bent at will to drive the wireless charging body to face any direction, and the rotary bendable wireless charging device is flexible in rotation, reliable in rotation limiting and high in heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless chargers, and particularly relates to a rotatable and bendable wireless charging device. Background Art

[0002] Wireless chargers have been widely accepted and recognized by people because of their very convenient and fast charging. The principle of wireless charging is the electromagnetic induction principle. Energy is transmitted between the wireless charger and the electronic device to be charged through a 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. In the automotive field, in-vehicle wireless chargers have been widely used.

[0003] Generally, for an in-vehicle wireless charger, an adhesive is first set on a fixed surface in the vehicle, and then the bottom surface of the fixed base of the wireless charger is attached to the adhesive to fix the wireless charger in the vehicle. The fixed base is often integrated or fixedly connected with the bracket of the wireless charger, which will make the bracket of the wireless charger unable to rotate freely, resulting in the problem of inflexible use. Moreover, the wireless charging body of the wireless charger is generally connected to the bracket through a universal ball joint. The universal ball structure limits the rotation through friction. In order to facilitate the adjustment of the direction of the wireless charging body, the friction will not be set very large, which will cause the rotation limit of the wireless charging body to fail due to accidental touch by people, and the rotation limit is not reliable enough. In addition, in-vehicle wireless chargers on the current market also have heat dissipation problems in addition to the above problems. Summary of the Utility Model

[0004] In view of this, a rotatable and bendable wireless charging device with flexible rotation, reliable rotation limit, and high heat dissipation efficiency is provided.

[0005] A rotatable and bendable wireless charging device includes a flexible support member, a fixed base, and a wireless charging body. The fixed base is used to be installed on a fixed surface. The wireless charging device further includes a rotating base, which is magnetically connected to the fixed base and can rotate relative to the fixed base. The rotating base is connected to one end of the flexible support member. The rotation of the rotating base can drive the flexible support member to rotate. The other end of the flexible support member is rotatably connected to the wireless charging body, and the wireless charging body can rotate relative to the flexible support member. The flexible support member is a metal strip covered with soft plastic on the outside, and the flexible support member can be bent arbitrarily to drive the wireless charging body to face any direction.

[0006] Further, the end of the flexible support member connected to the rotating base has a lower groove, a magnet is installed inside the inner side of the lower groove, the fixed base has an upper flange, a magnetic absorber is installed inside the upper flange, the magnet and the magnetic absorber are magnetically attracted, when the rotating base rotates relative to the fixed base, the lower groove encloses the upper flange and rotates around the upper flange, and an adhesive is provided at the bottom of the fixed base for fitting with the fixed surface.

[0007] Furthermore, the rotating base includes a connecting member, the end of the flexible support member connected to the rotating base further has an annular portion, the annular portion surrounds the connecting member, the edge of the connecting member has a snap structure, and the snap structure is buckled with the inner ring of the annular portion to connect the flexible support member and the rotating base into one body.

[0008] Furthermore, the connecting member is made of hard plastic, the edge of the connecting member is a convex edge, the magnet is installed in the space defined by the convex edge of the connecting member, and the outer peripheral surface of the side portion of the magnet is attached to the inner side of the convex edge.

[0009] Further, the metal strip is a flexible metal strip, and the metal strip is configured to be bent upward or downward and can maintain the deformation after bending.

[0010] Further, the wireless charging device further includes an adapter shell, the adapter shell includes an upper adapter shell and a lower adapter shell, the flexible support member is provided with an adapter hole, convex columns are provided on the inner sides of the upper adapter shell and the lower adapter shell, and the convex columns are matched with the adapter hole to fix the adapter shell and the flexible support member, and the upper adapter shell and the lower adapter shell are connected together by soldering.

[0011] Furthermore, a circumferentially arrayed strip-shaped card slot and a rotation phase switching structure are provided on the inner side of the adapter shell, a hollow circular shaft is provided at the end of the wireless charging body, the rotation phase switching structure is connected to the hollow circular shaft, the rotation phase switching structure includes a buckle and an elastic arm, the buckle is arranged on one of the elastic arms, when the wireless charging body is rotated, the elastic arm can drive the buckle to move up and down in a direction perpendicular to the axial direction of the hollow circular shaft, so that the buckle can be disengaged from or engaged with the strip-shaped card slot, so that the wireless charging body can rotate a predetermined angle or phase relative to the adapter shell and can be limited after rotation.

[0012] Further, the wireless charging device further includes a centrifugal fan, the wireless charging body includes a wireless charging shell, a magnetic induction coil, a circuit board, an air inlet hole and an air outlet hole, the air inlet holes are distributed on the back of the wireless charging shell, the air outlet holes are distributed on the side of the wireless charging shell, the centrifugal fan is arranged between the magnetic induction coil and the circuit board, and the circuit board is close to the air inlet hole.

[0013] Further, the centrifugal fan takes away the heat of the circuit board by means of air convection. There is a gap between the periphery of the circuit board and the wireless charging case, so that the cold air outside can enter through the air inlet hole and discharge the heat of the circuit board through the air outlet hole. The centrifugal fan takes away the heat of the magnetic induction coil by means of heat conduction. One side of the centrifugal fan away from the circuit board is in contact with the magnetic induction coil through a heat conductor.

[0014] Further, the cold air enters the air inlet hole, passes through the gap between the periphery of the circuit board and the wireless charging case, and then converges into the multiple air inlet channels of the centrifugal fan. When the centrifugal fan rotates, the cold air converging into the air inlet channels is discharged from the multiple air outlet channels on the side periphery of the centrifugal fan. The multiple air outlet channels and the multiple air inlet channels basically correspond to each other one by one and are connected through.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] First, a rotating base is provided. The rotating base is magnetically connected to the fixed base. The rotating base can rotate relative to the fixed base, and the rotating base is connected to the flexible support member, so that the flexible support member can rotate relative to the fixed base, enhancing the rotational flexibility. Moreover, the flexible support member is a metal strip with a soft plastic outer coating. The metal strip is a flexible metal strip that can maintain its deformation after being bent. Such a flexible support member can drive the wireless charging body in any direction, with stronger applicability.

[0017] Second, a rotation phase switching structure is provided to drive the rotation of the wireless charging body, enabling the wireless charging body to rotate a predetermined angle or phase relative to the flexible support member and be limited in position after rotation, further enhancing the rotational flexibility. Moreover, compared with the traditional universal ball joint method, this elastic limiting method can prevent accidental touch and has more reliable limiting.

[0018] Third, the centrifugal fan is arranged between the magnetic induction coil and the circuit board. Under the action of the centrifugal fan, the external cold air enters through the air inlet hole and can discharge the heat of the circuit board from the air outlet hole by means of air convection. The heat generated by the magnetic induction coil can also be discharged through the centrifugal fan by means of heat conduction, with high heat dissipation efficiency. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of a rotating and bendable wireless charging device according to an embodiment of the utility model.

[0020] Figure 2 is a cross-sectional schematic diagram of a rotating and bendable wireless charging device according to an embodiment of the utility model.

[0021] Figure 3 isFigure 2 Partial enlarged view of part A

[0022] Figure 4 is Figure 2 Partial enlarged view of part B

[0023] Figure 5 It is a schematic cross-sectional view of another angle of a rotatable and bendable wireless charging device according to an embodiment of the present invention

[0024] Figure 6 is Figure 5 Partial enlarged view of part C

[0025] Wherein

[0026] 1. Flexible support member; 11. Lower groove; 12. Ring portion; 2. Fixed base; 21. Upper flange; 22. Adhesive; 3. Wireless charging body; 31. Hollow circular shaft; 32. Wireless charging shell; 33. Magnetic induction coil; 34. Circuit board; 35. Air inlet hole; 36. Air outlet hole; 4. Rotating base; 41. Connecting member; 5. Magnet; 6. Magnet attracting body; 7. Adapter shell; 71. Strip-shaped card slot; 8. Rotating phase switching structure; 81. Buckle; 82. Elastic arm; 9. Centrifugal fan Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0028] Please refer to Figures 1 to 6 , which shows a rotatable and bendable wireless charging device provided by an embodiment of the present invention, including a flexible support member 1, a fixed base 2 and a wireless charging body 3. The fixed base 2 is used to be installed on a fixed surface. The wireless charging device further includes a rotating base 4. The rotating base 4 is magnetically connected to the fixed base 2. The rotating base 4 can rotate relative to the fixed base 2. The rotating base 4 is connected to one end of the flexible support member 1. The rotation of the rotating base 4 can drive the flexible support member 1 to rotate. The other end of the flexible support member 1 is rotatably connected to the wireless charging body 3. The wireless charging body 3 can rotate relative to the flexible support member 1. The flexible support member 1 is a metal strip coated with soft plastic on the outside. The flexible support member 1 can be bent arbitrarily to drive the wireless charging body 3 in any direction

[0029] Specifically, the end of the flexible support member 1 connected to the rotary base 4 has a lower groove 11, and a magnet 5 is installed on the inner side of the lower groove 11. Of course, the magnet 5 can also be replaced by other magnetic bodies, and is not limited thereto. The fixed base 2 has an upper flange 21, and a magnetic absorber 6 is installed inside the upper flange 21. The magnet 5 and the magnetic absorber 6 are magnetically attracted to each other. It can be understood that the magnet 5 and the magnetic absorber 6 can be interchanged as long as they can magnetically attract each other. When the rotary base 4 rotates relative to the fixed base 2, the lower groove 11 encloses the upper flange 21 and rotates around the upper flange 21. An adhesive 22 is provided at the bottom of the fixed base 2 for fitting with the fixed surface. The lower groove 11 is preferably an annular groove, and the upper flange 21 is also preferably an annular flange. The lower groove 11 and the upper flange 21 are closely fitted inside and outside. Under the action of magnetic attraction, the rotary base 4 and the fixed base 2 are tightly combined into one body through the assembly of the lower groove 11 and the upper flange 21, and can rotate relative to each other, and can be rotationally positioned at any phase. The upper flange 21 has a margin from the outermost peripheral edge of the fixed base 2, forming an outer support step, and the lower groove 11 is supported on the support step.

[0030] More specifically, the rotary base 4 includes a connecting member 41. The end of the flexible support member 1 connected to the rotary base 4 further has an annular portion 12. The annular portion 12 surrounds the connecting member 41. The edge of the connecting member 41 has a snap structure, and the snap structure is buckled with the inner ring of the annular portion 12 to connect the flexible support member 1 and the rotary base 4 into one body.

[0031] More specifically, the connecting member 41 is preferably made of hard plastic. The edge of the connecting member 41 is a convex edge. The magnet 5 is installed in the space defined by the convex edge of the connecting member 41, and the outer peripheral surface of the side of the magnet 5 is attached to the inner side of the convex edge. The connecting member 41 is preferably a ring, and the snap structure of the outer convex edge of the connecting member 41 is preferably a plurality of circumferentially arranged hooks, and the hooks lock the inner ring edge of the annular portion 12 of the flexible support member 1.

[0032] Specifically, the metal strip is preferably a flexible metal strip, and the metal strip is configured to be bent upward or downward and can maintain the deformation after bending. In this embodiment, the metal strip is preferably a thin and flat aluminum sheet. For example, the thickness of the aluminum sheet that can be used is about 1 to 5 millimeters, and the width is about 1 - 3 centimeters. By selecting the aluminum sheet, it can not only provide good flexibility, be convenient to bend at any angle, so as to support the mobile phone at any position or direction, but also assist in heat dissipation, and has a certain strength, and will not become flaccid after being bent multiple times, nor will it have the deficiencies of creases and easy fatigue aging like plastic after being bent multiple times.

[0033] Specifically, the wireless charging device further includes an adapter shell 7, which includes an upper adapter shell and a lower adapter shell. The flexible support member 1 is provided with an adapter hole, and the inner sides of the upper adapter shell and the lower adapter shell are provided with convex columns. The convex columns are engaged with the adapter hole to fix the adapter shell 7 to the flexible support member 1. The upper adapter shell and the lower adapter shell are connected together by soldering. In some specific embodiments, the upper adapter shell and the lower adapter shell can be connected together by ultrasonic welding, screw connection or snap connection.

[0034] More specifically, the inner side of the adapter shell 7 is provided with a circumferentially arrayed strip-shaped card slot 71 and a rotation phase switching structure 8. The end of the wireless charging body 3 is provided with a hollow circular shaft 31. The rotation phase switching structure 8 is connected to the hollow circular shaft 31. The rotation phase switching structure 8 includes a snap 81 and an elastic arm 82. The snap 81 is provided on one of the elastic arms 82. When the wireless charging body 3 is rotated, the elastic arm 82 can drive the snap 81 to move up and down in a direction perpendicular to the axial direction of the hollow circular shaft 31, so that the snap 81 can be disengaged from or engaged with the strip-shaped card slot 71, so that the wireless charging body 3 can rotate a predetermined angle or phase relative to the adapter shell 7 and can be limited after rotation.

[0035] In some specific embodiments, the rotation phase switching structure 8 is detachably connected to the hollow circular shaft 31, for example, it can be connected by screw connection or snap connection, etc.

[0036] Specifically, the wireless charging device further includes a centrifugal fan 9. The wireless charging body 3 includes a wireless charging shell 32, a magnetic induction coil 33, a circuit board 34, an air inlet hole 35 and an air outlet hole 36. The air inlet holes 35 are distributed on the back of the wireless charging shell 32, and the air outlet holes 36 are distributed on the side of the wireless charging shell 32. The centrifugal fan 9 is arranged between the magnetic induction coil 33 and the circuit board 34, and the circuit board 34 is close to the air inlet hole 35.

[0037] More specifically, the centrifugal fan 9 takes away the heat of the circuit board 34 by means of air convection. There is a gap between the periphery of the circuit board 34 and the wireless charging shell 32, so that the outside cold air can enter through the air inlet hole 35 and discharge the heat of the circuit board 34 through the air outlet hole 36. The centrifugal fan 9 takes away the heat of the magnetic induction coil 33 by means of heat conduction. One side of the centrifugal fan 9 away from the circuit board 34 is in contact with the magnetic induction coil 33 through a heat conductor.

[0038] More specifically, cold air enters the air inlet holes 35, passes through the gap between the periphery of the circuit board 34 and the wireless charging case 32, and then converges into the multiple air inlet channels of the centrifugal fan 9. When the centrifugal fan 9 rotates, the cold air converging into the air inlet channels is discharged from the multiple air outlet channels on the side periphery of the centrifugal fan 9. The multiple air outlet channels and the multiple air inlet channels basically correspond to and communicate with each other one by one.

[0039] In some specific embodiments, the cold air enters from the air inlet holes 35 on the back of the wireless charging case 32. The air entering from the back first contacts the middle part of the circuit board 34, then flows to the periphery of the circuit board 34, passes through the peripheral gap between the circuit board 34 and the case, converges into the multiple air inlet channels of the centrifugal fan 9, and is then discharged from the air outlet holes 36 through the air outlet channels. In this way, the heat-generating components on the circuit board 34 can be fully cooled. The other side of the centrifugal fan 9 away from the air inlet channels is combined with the magnetic induction coil 33 through a heat-conducting body. The heat-conducting body between the centrifugal fan 9 and the magnetic induction coil 33 can be provided with heat-conducting glue. The upper and lower surfaces of the heat-conducting glue are in direct contact with the magnetic induction coil 33 and the metal shell of the centrifugal fan 9. The centrifugal fan 9 discharges the heat of the magnetic induction coil 33 through the heat-conducting glue.

[0040] In summary, this rotatable and bendable wireless charging device is provided with a rotating base 4. The rotating base 4 is magnetically connected to the fixed base 2. The rotating base 4 can rotate relative to the fixed base 2, and the rotating base 4 is connected to the flexible support member 1, so that the flexible support member 1 can rotate relative to the fixed base 2, enhancing the rotational flexibility. The flexible support member 1 is a metal strip coated with soft plastic on the outside, and the metal strip is a flexible metal strip that can maintain its deformation after being bent. This flexible support member 1 can drive the wireless charging body 3 in any direction, with stronger applicability. A rotation phase switching structure 8 is provided to drive the wireless charging body 3 to rotate, so that the wireless charging body 3 can rotate a predetermined angle or phase relative to the flexible support member 1 and can be limited after rotation, further enhancing the rotational flexibility. Compared with the traditional universal ball joint method, this elastic limiting method can prevent accidental touch and the limiting is more reliable. The centrifugal fan 9 is arranged between the magnetic induction coil 33 and the circuit board 34. Under the action of the centrifugal fan 9, the external cold air enters through the air inlet holes 35 and can discharge the heat of the circuit board 34 from the air outlet holes 36 through air convection. The heat generated by the magnetic induction coil 33 can also be discharged through the centrifugal fan 9 by heat conduction, with high heat dissipation efficiency.

[0041] It should be noted that the present invention is not limited to the above embodiments. According to the creative spirit of the present invention, those skilled in the art can also make other changes. These changes made according to the creative spirit of the present invention should be included within the scope of protection required by the present invention.

Claims

1. A rotatable and bendable wireless charging device, comprising a flexible support, a fixed base and a wireless charging body, wherein the fixed base is used to be mounted on a fixed surface, characterized in that: The wireless charging device also includes a rotating base, which is magnetically connected to the fixed base and can rotate relative to the fixed base. The rotating base is connected to one end of the flexible support member, and the rotation of the rotating base can drive the flexible support member to rotate. The other end of the flexible support member is rotatably connected to the wireless charging body, and the wireless charging body can rotate relative to the flexible support member. The flexible support member is a metal strip coated with soft plastic, and the flexible support member can be bent arbitrarily to drive the wireless charging body to any direction.

2. The rotatable and bendable wireless charging device according to claim 1, characterized in that: The end of the flexible support member connected to the rotating base has a lower groove, and the fixed base has an upper flange, the lower groove is an annular groove, and the upper flange is an annular flange, the inner side of the lower groove is tightly fitted with the outer side of the upper flange, and the margin of the upper flange from the outermost peripheral edge of the fixed base forms an outer supporting step, and the lower groove is supported on the supporting step, a magnet is installed on the inner inner side of the lower groove, and an attractive magnet is installed on the inner side of the upper flange, and the magnet and the attractive magnet are attracted by magnetic force. Under the action of magnetic attraction, the rotating base and the fixed base are tightly combined into one through the assembly of the lower groove and the upper flange, and can rotate relative to each other. When the rotating base rotates relative to the fixed base, the lower groove accommodates the upper flange and rotates around the upper flange and can be rotated and positioned at any phase. The bottom of the fixed base is provided with adhesive to fit with the fixed surface.

3. The rotatable and bendable wireless charging device according to claim 2, characterized in that: The rotating base includes a connecting piece, and the end of the flexible support piece connected to the rotating base also has an annular portion, the annular portion surrounds the connecting piece, and the edge of the connecting piece has a snap structure, and the snap structure is engaged with the inner ring of the annular portion to connect the flexible support piece and the rotating base as a whole.

4. The rotatable and bendable wireless charging device according to claim 3, characterized in that: The connecting piece is made of hard plastic, the edge of the connecting piece is a convex edge, the magnet is installed in the space defined by the convex edge of the connecting piece, and the outer peripheral surface of the side of the magnet is in contact with the inner side of the convex edge.

5. The rotatable and bendable wireless charging device according to claim 1, characterized in that: The metal strip is a flexible metal strip, and the metal strip is configured to be able to bend upward or downward and to maintain deformation after bending.

6. The rotatable and bendable wireless charging device according to claim 1, characterized in that: The wireless charging device also includes an adapter shell, which includes an upper adapter shell and a lower adapter shell. The flexible support member is provided with an adapter hole. The inner sides of the upper adapter shell and the lower adapter shell are provided with convex columns. The convex columns cooperate with the adapter holes to fix the adapter shell and the flexible support member. The upper adapter shell and the lower adapter shell are connected together by soldering.

7. The rotatable and bendable wireless charging device according to claim 6, characterized in that: A circumferential array of strip slots and a rotation phase switching structure are provided on the inner side of the adapter shell, a hollow circular shaft is provided at the end of the wireless charging body, the rotation phase switching structure is connected to the hollow circular shaft, the rotation phase switching structure includes a buckle and an elastic arm, the buckle is provided on one of the elastic arms, when the wireless charging body is rotated, the elastic arm can drive the buckle to move up and down in a direction perpendicular to the axial direction of the hollow circular shaft, so that the buckle can disengage from or enter the strip slot, so that the wireless charging body can rotate to a predetermined angle or phase relative to the adapter shell, and can be rotated to a rear limit.

8. The rotatable and bendable wireless charging device according to claim 1, characterized in that: The wireless charging device also includes a centrifugal fan, and the wireless charging body includes a wireless charging shell, a magnetic induction coil, a circuit board, an air inlet and an air outlet, the air inlet is distributed on the back of the wireless charging shell, and the air outlet is distributed on the side of the wireless charging shell, the centrifugal fan is arranged between the magnetic induction coil and the circuit board, and the circuit board is close to the air inlet.

9. The rotatable and bendable wireless charging device as claimed in claim 8, characterized in that: A gap is provided between the periphery of the circuit board and the wireless charging shell so that external cold air can enter through the air inlet and discharge the heat of the circuit board through the air outlet. The side of the centrifugal fan away from the circuit board is in contact with the magnetic induction coil through a heat conductor.

10. The rotatable and bendable wireless charging device according to claim 9, characterized in that: The centrifugal fan has a plurality of air inlet channels and a plurality of air outlet channels, and the plurality of air outlet channels substantially correspond to and are connected with the plurality of air inlet channels one by one.

Images