Wireless charging device

Abstract

The utility model discloses a wireless charging device, which comprises a shell, a printed circuit board arranged in the shell, a charging assembly and a magnetic attraction assembly, the charging assembly comprises a wireless charging coil; the wireless charging coil is electrically connected with the printed circuit board and is used for wirelessly charging external equipment; the magnetic attraction assembly comprises an annular magnetic piece, a first magnetic block and a second magnetic block, wherein the first magnetic block and the second magnetic block are symmetrically arranged about the central axis of the annular magnetic piece. The annular magnetic piece surrounds the wireless charging coil. The wireless charging coil, the annular magnetic piece, the first magnetic block and the second magnetic block are located on the front face of the wireless charging device. According to the utility model, the magnetic attraction force is enhanced, it is ensured that the wireless charging device is not moved in the wireless charging process, and meanwhile, the magnetic attraction alignment efficiency in the charging process is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging devices, and particularly relates to a wireless charging device.

Background Art

[0002] With the development of magnetic adsorption charging technology, wireless charging methods have been popularized. During wireless charging, unstable wireless charging environments such as shaking may be encountered, which may cause the wireless charging device to be displaced, affecting the charging efficiency. Therefore, it is necessary to design a wireless charging device with stronger magnetic attraction.

Content of the Utility Model

[0003] The purpose of the utility model is to enhance the magnetic attraction of the wireless charging device.

[0004] To this end, the present application provides a wireless charging device, which includes a housing, a printed circuit board installed in the housing, a charging component, and a magnetic adsorption component; the charging component includes a wireless charging coil, and the wireless charging coil is electrically connected to the printed circuit board for wirelessly charging an external device; the magnetic adsorption component includes an annular magnetic member, a first magnetic block and a second magnetic block symmetrically arranged with respect to the central axis of the annular magnetic member, and the annular magnetic member surrounds the wireless charging coil; the surfaces of the wireless charging coil, the annular magnetic member, the first magnetic block and the second magnetic block are close to the front surface of the wireless charging device.

[0005] In an embodiment of the present application, the housing includes a main housing and a face shell, the main housing forms a receiving cavity with an opening, and the printed circuit board, the charging component and the magnetic adsorption component are received in the receiving cavity; the face shell covers the opening of the receiving cavity, and the wireless charging coil, the annular magnetic member, the first magnetic block and the second magnetic block are located close to the face shell; a flexible buffer layer is further included, and the flexible buffer layer is provided between the magnetic adsorption component and the face shell.

[0006] In an embodiment of the present application, the inner side of the flexible buffer layer has a groove for receiving the magnetic adsorption component.

[0007] In an embodiment of the present application, the magnetic adsorption component further includes a positioning tail magnet, and the central axis of the positioning tail magnet is collinear with the central axis of the annular magnetic member.

[0008] In an embodiment of the present application, the first magnetic block and the second magnetic block are arranged on the side of the positioning tail magnet away from the annular magnetic member; the perpendicular bisector of the first magnetic block and the second magnetic block is collinear with the central axis of the positioning tail magnet.

[0009] In an embodiment of the present application, it further includes a control button, which is electrically connected to the printed circuit board and is used to control the working state of the charging component; the central axis of the control button is collinear with the central axis of the annular magnetic member; the first magnetic block and the second magnetic block are symmetrically arranged on both sides of the control button.

[0010] In an embodiment of the present application, the distances on both sides of the first magnetic block and the second magnetic block do not exceed the outer diameter of the annular magnetic member.

[0011] In an embodiment of the present application, it further includes a power supply circuit arranged in the housing, and the power supply circuit is used to process the external power supply and then wirelessly charge the external device through the wireless charging coil.

[0012] In an embodiment of the present application, the charging component further includes a storage battery, and the power supply circuit is used to process the external power supply and then charge the storage battery; the storage battery is used to supply power to the external device through the wireless charging coil.

[0013] In an embodiment of the present application, it further includes a motor arranged in the housing; the motor is electrically connected to the printed circuit board.

[0014] Based on the annular magnetic member, the magnetic attraction component of the present utility model is also symmetrically provided with a first magnetic block and a second magnetic block with respect to the central axis of the annular magnetic member; thereby increasing the contact area of magnetic attraction during wireless charging and effectively enhancing the magnetic attraction of the wireless charging device.

Description of the Drawings

[0015] To further disclose the specific technical content of this case, first please refer to the attached drawings, where:

[0016] Figure 1 is a three-dimensional schematic diagram of the wireless charging device of the present utility model;

[0017] Figure 2 is Figure 1 the exploded schematic diagram of the wireless charging device shown.

Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be described in conjunction with the drawings of the present utility model.

[0019] Please refer to Figure 1 and Figure 2 , the present utility model provides a wireless charging device 100 for wirelessly charging an external device. The external device includes electronic products such as mobile phones and tablet computers. The wireless charging device 100 includes a housing 10, a printed circuit board 20 installed in the housing 10, a charging component, and a magnetic attraction component 50.

[0020] Among them, the housing 10 includes a main housing 11 and a front housing 12. The main housing 11 forms a receiving cavity with an opening, and the printed circuit board 20, the charging component, and the magnetic attraction component 50 are received in the receiving cavity; the front housing 12 covers the opening of the receiving cavity. The charging component includes a wireless charging coil 30, and the wireless charging coil 30 is electrically connected to the printed circuit board 20; the wireless charging coil 30 is used for wirelessly charging an external device. In this embodiment, the wireless charging device 100 further includes a flexible buffer layer 15, and the flexible buffer layer 15 is disposed between the magnetic attraction component 50 and the front housing 12. Preferably, the inner side of the flexible buffer layer 15 has a groove for receiving the magnetic attraction component 50; further buffering the resistance force of the magnetic attraction component 50 against the front housing 12.

[0021] In this embodiment, the magnetic attraction component 50 includes an annular magnetic member 51, a first magnetic block 52 and a second magnetic block 53 symmetrically arranged about the central axis of the annular magnetic member 51. The annular magnetic member 51 is disposed on the circumferential outer side of the wireless charging coil 4 and surrounds the wireless charging coil 30. In this embodiment, the wireless charging coil 30, the annular magnetic member 51, the first magnetic block 52, and the second magnetic block 53 are close to the surface of the front side of the wireless charging device 100. The surface of the front side of the wireless charging device 100 is the outer surface of the front housing 12. Thus, the wireless charging coil 30, the annular magnetic member 51, the first magnetic block 52, and the second magnetic block 53 are located close to the front housing 12; when the wireless charging coil 30 wirelessly charges an external device, on the basis of the annular magnetic member 51, the first magnetic block 52 and the second magnetic block 53 are symmetrically arranged along the central axis of the annular magnetic member 51, increasing the contact area of magnetic attraction during the wireless charging process, and at the same time forming a triangular three-point magnetic attraction structure, effectively enhancing the magnetic attraction force of the wireless charging device. Specifically, the first magnetic block 52 and the second magnetic block 53 of this embodiment are symmetrically arranged along the central axis of the annular magnetic member 51 in the long side direction of the overall wireless charging device 100.

[0022] Preferably, the distance between the two sides of the first magnetic block 52 and the second magnetic block 53 does not exceed the outer diameter of the annular magnetic member 51; making the magnetic attraction force of the first magnetic block 52 and the second magnetic block 53 concentrated and maintaining the magnetic attraction force.

[0023] Furthermore, the magnetic attraction component 50 further includes a positioning tail magnet 55. The central axis of the positioning tail magnet 55 is collinear with the central axis of the annular magnetic member 51. The first magnetic block 52 and the second magnetic block 53 are disposed on the side of the positioning tail magnet 55 away from the annular magnetic member 51. Preferably, the perpendicular bisector between the first magnetic block 52 and the second magnetic block 53 is collinear with the central axis of the positioning tail magnet 55. Thus, the positioning tail magnet 55 is disposed in the triangular three-point magnetic attraction structure formed by the annular magnetic member 51, the first magnetic block 52, and the second magnetic block 53, further enhancing the magnetic attraction force of the wireless charging device.

[0024] In this embodiment, the wireless charging device 100 further includes a control button 25. The control button 25 is electrically connected to the printed circuit board 20 and is used to control the working state of the charging component. The central axis of the control button 25 coincides with the central axis of the annular magnetic member 51; moreover, the first magnetic block 52 and the second magnetic block 53 are symmetrically arranged on both sides of the control button 25; the perpendicular bisector between the first magnetic block 52 and the second magnetic block 53 is collinear with the central axis of the control button 25. Specifically, the central axis and the perpendicular bisector in this embodiment can both be understood as lines in the long side direction of the entire wireless charging device 100.

[0025] The wireless charging device 100 further includes a power circuit and a storage battery (not shown in the figure) disposed in the housing 10. Specifically, the charging component includes this storage battery. The power circuit is used to process the external power supply and then wirelessly charge an external device through the wireless charging coil 30. The power circuit is also used to process the external power supply and then charge the storage battery. The storage battery is used to supply power to the external device through the wireless charging coil 30. The storage battery transmits power to the wireless charging coil 30, and the wireless charging coil 30 conveys power to the external device through wireless sensing.

[0026] The wireless charging device 100 further includes a motor (not shown in the figure) disposed in the housing 10; the motor is electrically connected to the printed circuit board 20. The motor can vibrate to give a reminder.

[0027] It should be noted that from the perspective of the front of the wireless charging device 100, the power circuit, the storage battery, and the motor are all blocked by the printed circuit board 20, the charging component, and the magnetic attraction component 50 and are not shown in the figure. Since the structures and positions of the power circuit, the storage battery, and the motor do not belong to the innovative solutions of this application, they will not be elaborated here.

[0028] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this application.

Claims

1. A wireless charging device, comprising a housing, and a printed circuit board, a charging component and a magnetic suction component installed in the housing; the charging component comprises a wireless charging coil, and the wireless charging coil is electrically connected to the printed circuit board for wirelessly charging an external device; characterized in that: The magnetic attraction assembly includes an annular magnetic part, a first magnetic block and a second magnetic block symmetrically arranged along the central axis of the annular magnetic part, and the annular magnetic part surrounds the wireless charging coil; the wireless charging coil, the annular magnetic part, the first magnetic block and the second magnetic block are close to the front surface of the wireless charging device.

2. The wireless charging device according to claim 1, characterized in that: The shell includes a main shell and a surface shell, the main shell forms a receiving cavity with an opening, and the printed circuit board, the charging component and the magnetic attraction component are accommodated in the receiving cavity; the surface shell covers the opening of the receiving cavity, and the wireless charging coil, the annular magnetic part, the first magnetic block and the second magnetic block are located close to the surface shell; the wireless charging device also includes a flexible buffer layer, and the flexible buffer layer is arranged between the magnetic attraction component and the surface shell.

3. The wireless charging device according to claim 2, characterized in that: The inner side of the flexible buffer layer is provided with a groove for accommodating the magnetic attraction component.

4. The wireless charging device according to claim 1, characterized in that: The magnetic attraction assembly also includes a positioning tail magnet, and the central axis of the positioning tail magnet is colinear with the central axis of the annular magnetic component.

5. The wireless charging device according to claim 4, characterized in that: The first magnetic block and the second magnetic block are arranged on a side of the positioning tail magnet away from the annular magnetic component; the perpendicular bisectors of the first magnetic block and the second magnetic block are collinear with the central axis of the positioning tail magnet.

6. The wireless charging device according to claim 1, characterized in that: It also includes a control button, which is electrically connected to the printed circuit board and is used to control the working state of the charging component; the central axis of the control button is colinear with the central axis of the annular magnetic part; the first magnetic block and the second magnetic block are symmetrically arranged on both sides of the control button.

7. The wireless charging device according to claim 1, characterized in that: The distance between the two sides of the first magnetic block and the second magnetic block does not exceed the outer diameter of the annular magnetic component.

8. The wireless charging device according to claim 1, characterized in that: It also includes a power supply circuit arranged in the shell, and the power supply circuit is used to process the external power supply and wirelessly charge the external device through the wireless charging coil.

9. The wireless charging device according to claim 8, characterized in that: The charging component also includes a battery, and the power circuit is used to charge the battery after processing the external power; the battery is used to supply power to an external device through a wireless charging coil.

10. The wireless charging device according to claim 1, characterized in that: It also includes a motor arranged in the housing; the motor is electrically connected to the printed circuit board.

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