Wireless charger with high stability

Abstract

The utility model relates to a wireless charger with high stability, which comprises a connecting body, a fixed base and a wireless charging body, the fixed base is used for being installed on a fixed surface, the wireless charging body is connected with the fixed base through the connecting body, and the wireless charging body is connected with the fixed base through the connecting body. The connecting body comprises a connecting main body, a switching part, a rotating phase switching structure and an elastic assembly, the elastic assembly comprises an outer spring and / or an inner spring, the rotating phase switching structure is arranged in the switching part, the switching part is arranged at one end of the connecting main body, a hollow circular shaft is arranged at the end part of the wireless charging body, and the rotating phase switching structure is arranged in the hollow circular shaft. The rotating phase switching structure is fixedly connected with the hollow circular shaft, the left end and the right end of the outer spring are connected with the hollow circular shaft and the switching part respectively, the left end and the right end of the inner spring are connected with the switching part and the hollow circular shaft respectively, and the wireless charger is high in stability, high in heat dissipation efficiency and flexible in rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless chargers, and in particular to a wireless charger with high stability. Background Art

[0002] Wireless chargers have been widely accepted and recognized because of their convenience and speed. The principle of wireless charging is electromagnetic induction. Energy is transmitted between the wireless charger and the electronic device to be charged through the magnetic field. No wire connection is required between the wireless charger and the electronic device to be charged. It is highly intelligent. In the automotive field, car-mounted wireless chargers have been widely used.

[0003] In-car wireless chargers are fixed in the car via a fixed base. For ease of use, the wireless charger is often magnetically connected to the electronic device to be charged, and the magnetic force is not very strong to facilitate disassembly. However, this means that when braking or accelerating suddenly, the inertial force may be greater than the magnetic force. At this time, the electronic device will separate from the wireless charger and fall off, easily causing damage to the electronic device. This is very unsafe and unreliable. In addition, the in-car wireless chargers currently on the market also have problems with heat dissipation and inconvenient rotation and adjustment. Utility Model Content

[0004] In view of this, a wireless charger with high stability, high heat dissipation efficiency and flexible rotation is provided.

[0005] A wireless charger with high stability includes a connector, a fixed base and a wireless charging body, wherein the fixed base is used to be installed on a fixed surface, and the wireless charging body is connected to the fixed base via the connector, the connector includes a connecting body, an adapter, a rotation phase switching structure and an elastic component, the elastic component includes an outer spring and / or an inner spring, the rotation phase switching structure is arranged inside the adapter, the adapter is arranged at one end of the connecting body, a hollow circular shaft is arranged at the end of the wireless charging body, the rotation phase switching structure is connected to the hollow circular shaft, and the rotation phase switching structure can drive the wireless charging body to rotate a predetermined angle or phase, the left and right ends of the outer spring are respectively connected to the hollow circular shaft and the adapter, and the left and right ends of the inner spring are respectively connected to the adapter and the hollow circular shaft.

[0006] Furthermore, the outer spring is coaxial with the inner spring, the outer spring is sleeved on the outside of the hollow circular shaft, and the inner spring is arranged inside the hollow circular shaft.

[0007] Furthermore, it also includes a centrifugal fan. 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 or front outer circle 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.

[0008] Furthermore, the centrifugal fan removes the heat of the circuit board through air convection, and a gap is provided between the periphery of the circuit board and the wireless charging case so that external cold air can enter through the air inlet and discharge the heat of the circuit board through the air outlet. The centrifugal fan removes the heat of the magnetic induction coil through heat conduction, and the side of the centrifugal fan away from the circuit board is in contact with the magnetic induction coil through a heat conductor.

[0009] Furthermore, 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 flows into the multiple air inlet channels of the centrifugal fan. When the centrifugal fan rotates, the cold air flowing into the air inlet channel is discharged through the multiple air outlet channels on the side periphery of the centrifugal fan. The multiple air outlet channels basically correspond to the multiple air inlet channels one by one and are connected.

[0010] Furthermore, the rotation phase switching structure includes a buckle and an elastic arm, the buckle is arranged on one of the elastic arms, and the inner wall of the adapter is provided with a circumferential array of strip slots. 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 a predetermined angle or phase relative to the adapter, and can be limited after rotation.

[0011] Furthermore, after the buckle enters the strip-shaped card slot, it can translate along the slot length direction of the strip-shaped card slot, so that the wireless charging body can move along the slot length direction of the strip-shaped card slot.

[0012] Furthermore, the adapter part includes an upper adapter shell and a lower adapter shell, the connecting body is provided with an adapter hole, the inner sides of the upper adapter shell and the lower adapter shell are provided with a boss, the boss cooperates with the adapter hole to fix the adapter part and the connecting body, and the upper adapter shell and the lower adapter shell are connected together by soldering, ultrasonic welding, screw connection or snap connection.

[0013] Furthermore, it also includes a rotating base, the connecting body is connected to the fixed base through the rotating base, a magnet is installed at the lower part of the rotating base, and an attractive magnet is installed at the upper part of the fixed base, and the lower part of the rotating base and the upper part of the fixed base are attracted by magnetic force.

[0014] Furthermore, the connecting body is a metal strip coated with soft plastic, and the rotating base includes a connecting piece, which is fixedly connected to the metal strip.

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

[0016] First, the connecting body and the wireless charging body are elastically connected via an external spring and / or an internal spring. When the car suddenly brakes or accelerates, the elastic force of the spring counteracts the inertial force, buffering most of the inertial force. This greatly reduces the possibility that the inertial force will be greater than the magnetic force between the electronic device and the wireless charger, thereby preventing the electronic device from separating from the wireless charger, ensuring high stability, safety, and reliability.

[0017] Second, the centrifugal fan is arranged between the magnetic induction coil and the circuit board. The external cold air enters through the air inlet under the action of the centrifugal fan and can discharge the heat of the circuit board from the air outlet. The heat generated by the magnetic induction coil can also be discharged through the centrifugal fan, and the heat dissipation efficiency is high.

[0018] Third, a rotating base is provided, which is magnetically connected to the fixed base and fixed to the connecting body, so that the connecting body can magnetically rotate relative to the fixed base. At the same time, a rotation phase switching structure is provided to drive the rotation of the wireless charging body, so that the wireless charging body itself can rotate relative to the connecting body, and the rotation flexibility is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall three-dimensional schematic diagram of a wireless charger with high stability according to an embodiment of the present utility model.

[0020] Figure 2 It is a cross-sectional schematic diagram of a wireless charger with high stability according to an embodiment of the present utility model.

[0021] Figure 3 yes Figure 2 A partial enlarged view of part A.

[0022] Figure 4 yes Figure 2 A partial enlarged view of part B.

[0023] Figure 5 It is a cross-sectional schematic diagram of a wireless charger with high stability according to an embodiment of the present invention from another angle.

[0024] Figure 6 yes Figure 5 A partial enlarged view of part C.

[0025] in,

[0026] 1. Connector; 11. Connecting body; 12. Adapter; 121. Bar slot; 13. Rotational phase switching structure; 131. Buckle; 132. Elastic arm; 14. Elastic component; 141. Outer spring; 142. Inner spring; 2. Fixed base; 3. Wireless charging body; 31. Hollow circular shaft; 32. Wireless charging case; 33. Magnetic induction coil; 34. Circuit board; 35. Air inlet; 36. Air outlet; 4. Centrifugal fan; 5. Rotating base. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figures 1 to 6 , shows a wireless charger with high stability provided by an embodiment of the present utility model, including a connector 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 body 3 is connected to the fixed base 2 through the connector 1, the connector 1 includes a connecting body 11, an adapter 12, a rotation phase switching structure 13 and an elastic component 14, the elastic component 14 includes an outer spring 141 and / or an inner spring 142, the rotation phase switching structure 13 is arranged inside the adapter 12, the adapter 12 is provided at one end of the connecting body 11, a hollow circular shaft 31 is provided at the end of the wireless charging body 3, the rotation phase switching structure 13 is connected to the hollow circular shaft 31, and the rotation phase switching structure 13 can drive the wireless charging body 3 to rotate a predetermined angle or phase, the left and right ends of the outer spring 141 are respectively connected to the hollow circular shaft 31 and the adapter 12, and the left and right ends of the inner spring 142 are respectively connected to the adapter 12 and the hollow circular shaft 31.

[0029] Specifically, the outer spring 141 is coaxial with the inner spring 142 . The outer spring 141 is sleeved on the outside of the hollow circular shaft 31 , and the inner spring 142 is arranged inside the hollow circular shaft 31 .

[0030] In some specific embodiments, when the wireless charging body 3 is standing above the fixed base 2, the car brakes suddenly or accelerates, and the wireless charging body 3 moves toward the position of the fixed base 2 or moves away from the position of the fixed base 2. At this time, the inner spring 142 is mainly at work, and the inner spring 142 contracts or stretches, and provides elastic buffer support or buffer traction through the compressed state or stretched state of the inner spring 142; when the wireless charging body 3 is hanging below the fixed base 2, the car brakes suddenly or accelerates, and the wireless charging body 3 moves toward the position of the fixed base 2 or moves away from the position of the fixed base 2. At this time, the outer spring 141 is mainly at work, and the outer spring 141 contracts or stretches, and provides elastic buffer support or buffer traction through the compressed state or stretched state of the outer spring 141.

[0031] Specifically, it also includes a centrifugal fan 4. The wireless charging body 3 includes a wireless charging shell 32, a magnetic induction coil 33, a circuit board 34, an air inlet 35 and an air outlet 36. The air inlet 35 is distributed on the back of the wireless charging shell 32, and the air outlet 36 is distributed on the side or front outer ring of the wireless charging shell 32. The centrifugal fan 4 is arranged between the magnetic induction coil 33 and the circuit board 34, and the circuit board 34 is close to the air inlet 35.

[0032] More specifically, the centrifugal fan 4 takes away the heat of the circuit board 34 through air convection. A gap is provided between the periphery of the circuit board 34 and the wireless charging shell 32 so that external cold air can enter through the air inlet 35 and discharge the heat of the circuit board 34 through the air outlet 36. The centrifugal fan 4 takes away the heat of the magnetic induction coil 33 through heat conduction. The side of the centrifugal fan 4 away from the circuit board 34 is in contact with the magnetic induction coil 33 through a heat conductor.

[0033] More specifically, the cold air enters the air inlet hole 35, passes through the gap between the periphery of the circuit board 34 and the wireless charging shell 32, and then flows into the multiple air inlet channels of the centrifugal fan 4. When the centrifugal fan 4 rotates, the cold air flowing into the air inlet channel is discharged through the multiple air outlet channels on the side periphery of the centrifugal fan 4. The multiple air outlet channels basically correspond to the multiple air inlet channels one by one and are connected.

[0034] In some specific embodiments, cold air enters through the air inlet 35 on the back of the wireless charging case 32. The air entering from the back first contacts the middle 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 shell, and merges into the multiple air inlet channels of the centrifugal fan 4. It is then discharged from the air outlet channel through the air outlet 36, thereby fully cooling the heat-generating components on the circuit board 34. The other side of the centrifugal fan 4 away from the air inlet channel is connected to the magnetic induction coil 33 through a heat conductor, and the magnetic induction coil 33 is dissipated through the connection surface of the centrifugal fan 4. The heat conductor between the centrifugal fan 4 and the magnetic induction coil 33 can be provided with thermal conductive adhesive. The upper and lower surfaces of the thermal conductive adhesive are in direct contact with the metal shell of the magnetic induction coil 33 and the centrifugal fan 4. The centrifugal fan 4 dissipates heat from the magnetic induction coil 33 through the thermal conductive adhesive.

[0035] In some specific embodiments, the rotation phase switching structure 13 is connected to the hollow circular shaft 31 in a detachable manner, for example, by a threaded connection or a snap connection, etc.

[0036] Specifically, the rotation phase switching structure 13 includes a buckle 131 and an elastic arm 132. The buckle 131 is provided on one of the elastic arms 132. The inner wall of the adapter 12 is provided with a circumferential array of strip slots 121. When the wireless charging body 3 is rotated, the elastic arm 132 can drive the buckle 131 to move up and down in a direction perpendicular to the axial direction of the hollow circular shaft 31, so that the buckle 131 can disengage from or enter the strip slot 121, so that the wireless charging body 3 can rotate relative to the adapter 12 by a predetermined angle or phase, and can be limited after rotation.

[0037] More specifically, after the buckle 131 enters the strip-shaped slot 121 , it can translate along the length direction of the strip-shaped slot 121 , so that the wireless charging body 3 can move along the length direction of the strip-shaped slot 121 .

[0038] Specifically, the adapter part 12 includes an upper adapter shell and a lower adapter shell, the connecting body 11 is provided with an adapter hole, the inner sides of the upper adapter shell and the lower adapter shell are provided with a boss, the boss cooperates with the adapter hole to fix the adapter part 12 to the connecting body 11, and the upper adapter shell and the lower adapter shell are connected together by ultrasonic welding, screws or snaps.

[0039] Specifically, it also includes a rotating base 5, the connecting body 11 is connected to the fixed base 2 through the rotating base 5, a magnet is installed at the lower part of the rotating base 5, and an attractive magnet is installed at the upper part of the fixed base 2, and the lower part of the rotating base 5 and the upper part of the fixed base 2 are attracted by magnetic force.

[0040] More specifically, the connecting body 11 is a metal strip coated with soft plastic, and the rotating base 5 includes a connecting piece, which is fixedly connected to the metal strip.

[0041] In summary, the connecting body 11 and the wireless charging body 3 are elastically connected by the outer spring 141 and / or the inner spring 142. When the car suddenly brakes or accelerates, the elastic force of the spring counteracts the inertial force, buffering most of the inertial force, making the possibility of the inertial force being greater than the magnetic force between the electronic device and the wireless charger greatly reduced, so that the electronic device will not separate from the wireless charger, with high stability, safety and reliability; the centrifugal fan 4 is arranged between the magnetic induction coil 33 and the circuit board 34. Under the action of the centrifugal fan 4, the external cold air enters through the air inlet 35 and can discharge the heat of the circuit board 34 from the air outlet 36. The heat generated by the magnetic induction coil 33 can also be discharged through the centrifugal fan 4, with high heat dissipation efficiency; a rotating base 5 is provided, the rotating base 5 is magnetically connected to the fixed base 2, and the rotating base 5 is fixed to the connecting body 11, so that the connecting body 11 can magnetically rotate relative to the fixed base 2. At the same time, a rotation phase switching structure 13 is provided to drive the wireless charging body 3 to rotate, so that the wireless charging body 3 itself can rotate relative to the connecting body 1, and the rotation flexibility is further enhanced.

[0042] It should be noted that the present invention is not limited to the above-mentioned 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 in the scope of protection required by the present invention.

Claims

1. A wireless charger with high stability, comprising a connector, a fixed base, and a wireless charging body, wherein the fixed base is used to be mounted on a fixed surface, and the wireless charging body is connected to the fixed base via the connector, characterized in that: The connecting body includes a connecting body, a connecting part, a rotation phase switching structure and an elastic component. The elastic component includes an outer spring and / or an inner spring. The rotation phase switching structure is arranged inside the connecting part. The connecting part is arranged at one end of the connecting body. A hollow circular shaft is arranged 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 can drive the wireless charging body to rotate a predetermined angle or phase. The left and right ends of the outer spring are respectively connected to the hollow circular shaft and the connecting part. The left and right ends of the inner spring are respectively connected to the connecting part and the hollow circular shaft.

2. A wireless charger with high stability as claimed in claim 1, characterized in that: The outer spring is coaxial with the inner spring. The outer spring is sleeved on the outside of the hollow shaft, and the inner spring is arranged inside the hollow shaft.

3. A wireless charger with high stability as claimed in claim 1, characterized in that: It also includes a centrifugal fan. 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.

4. A wireless charger with high stability as claimed in claim 3, characterized in that: A gap is provided between the periphery of the circuit board and the wireless charging case 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.

5. A wireless charger with high stability as claimed in claim 4, 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.

6. The wireless charger with high stability according to claim 1, characterized in that: The rotation phase switching structure includes a buckle and an elastic arm. The buckle is arranged on one of the elastic arms. The inner wall of the adapter is provided with a circumferential array of strip slots. 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 a predetermined angle or phase relative to the adapter, and can be limited after rotation.

7. A wireless charger with high stability as claimed in claim 6, characterized in that: After the buckle enters the strip-shaped card slot, it can translate along the slot length direction of the strip-shaped card slot, so that the wireless charging body can move along the slot length direction of the strip-shaped card slot.

8. The wireless charger with high stability as claimed in claim 1, characterized in that: The adapter part includes an upper adapter shell and a lower adapter shell, the connecting body is provided with an adapter hole, the inner sides of the upper adapter shell and the lower adapter shell are provided with a convex column, the convex column cooperates with the adapter hole to fix the adapter part and the connecting body, and the upper adapter shell and the lower adapter shell are connected together by soldering.

9. The wireless charger with high stability according to claim 1, characterized in that: It also includes a rotating base, the connecting body is connected to the fixed base through the rotating base, a magnet is installed at the lower part of the rotating base, and an attractive magnet is installed at the upper part of the fixed base, and the lower part of the rotating base and the upper part of the fixed base are attracted by magnetic force.

10. A wireless charger with high stability as claimed in claim 9, characterized in that: The connecting body is a metal strip coated with soft plastic, and the rotating base includes a connecting piece, which is fixedly connected to the metal strip.

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