A magnetic laptop wireless charger

Abstract

The present invention discloses a magnetic laptop wireless charger, including a wireless charging plate, a power interface is provided on the side of the wireless charging plate, a charging line with a power adapter connector is plugged into the power interface, a control circuit board and a coil are provided inside the wireless charging plate, the power interface is electrically connected to the control circuit board and the coil in sequence, a magnetic sheet is provided on the top surface of the wireless charging plate, and a conductive head is provided at the position of the magnetic sheet, and the conductive head is electrically connected to the power interface. The present invention wirelessly charges the laptop through the wireless charging plate technology, and adopts a magnetic structure, which does not require plugging and unplugging, is easy to operate and use, and can prevent the laptop from slipping, ensuring the stability of charging; in addition, a conductive head is provided at the magnetic point, which can directly power the laptop to prevent insufficient power supply for the laptop during wireless charging.

Description

Technical Field

[0001] The present invention relates to the field of wireless charging equipment, and in particular to a magnetic wireless charger for laptops. Background Art

[0002] The existing laptop charging method is a wired charger. When charging, the long charger cable and converter take up space and are inconvenient to operate. In addition, due to too many plug-in and unplug times, the charging port is easily damaged due to carrying it back and forth to get off work. In addition, the additional charging opening easily causes dust to enter the notebook. Summary of the invention

[0003] The purpose of the present invention is to provide a magnetic wireless charger for laptops, which solves the defects of existing laptop charging methods.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A magnetic laptop wireless charger comprises a wireless charging plate, a power interface is provided on the side of the wireless charging plate, a charging cable with a power adapter connector is plugged into the power interface, a control circuit board and a coil are provided inside the wireless charging plate, the power interface is electrically connected to the control circuit board and the coil in sequence, a magnetic sheet is provided on the top surface of the wireless charging plate, and a conductive head is provided at the position of the magnetic sheet, and the conductive head is electrically connected to the power interface.

[0006] A further improvement is that the coil is a single coil or a multi-coil structure, and when the coil is a multi-coil structure, a metal isolation plate is provided between adjacent coils.

[0007] A further improvement is that the multi-coil is a double-coil, triple-coil or quad-coil structure.

[0008] A further improvement is that the position of the magnetic sheet on the top surface of the wireless charging plate is staggered with the induction area corresponding to the coil on the top surface of the wireless charging plate.

[0009] A further improvement is that the magnetic sheet is in a circular shape and is located concentrically with the outer circle of the coil corresponding to the sensing area on the top surface of the wireless charging plate.

[0010] A further improvement is that the magnetic attraction sheet adopts a non-conductive magnet, preferably a rubber magnet or a ferrite magnet.

[0011] A further improvement is that the conductive head includes at least two contacts, and the contacts are used to contact with the power receiving contact points of the notebook to conduct electricity.

[0012] A further improvement is that an expansion interface is also provided on the side of the wireless charging plate, the expansion interface is electrically connected to the power interface, and a replaceable data cable is plugged into the expansion interface.

[0013] The beneficial effects of the present invention are as follows: the present invention wirelessly charges the notebook computer through the wireless charging plate technology, and adopts a magnetic structure, which does not require plugging and unplugging, is easy to operate and use, and can prevent the notebook computer from slipping, thereby ensuring the stability of charging; in addition, a conductive head is arranged on the magnetic point to directly power the notebook computer, thereby preventing the notebook computer from being insufficiently supplied with power during wireless charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0016] In the figure: 1. Wireless charging plate; 2. Power interface; 3. Power adapter connector; 4. Charging cable; 5. Control circuit board; 6. Coil; 7. Magnetic sheet; 8. Conductive head; 801, contact; 9. Metal isolation plate; 10. Expansion interface. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Example 1

[0019] like Figure 1 As shown, a magnetic laptop wireless charger includes a wireless charging board 1, a power interface 2 is provided on the side of the wireless charging board 1, a charging line 4 with a power adapter connector 3 is plugged into the power interface 2, and current can be transmitted to the wireless charging board 1 body through the power interface 2. A control circuit board 5 and a coil 6 are provided inside the wireless charging board 1, and the power interface 2 is electrically connected to the control circuit board 5 and the coil 6 in sequence. A magnetic sheet 7 is provided on the top surface of the wireless charging board 1, and a conductive head 8 is provided at the position of the magnetic sheet 7. The conductive head 8 can be made of metal materials such as copper, aluminum, and silver, and the conductive head 8 is electrically connected to the power interface 2. Among them, the coil 6 is a single coil structure.

[0020] In this embodiment, the position of the magnetic sheet 7 on the top surface of the wireless charging board 1 is staggered from the induction area corresponding to the coil 6 on the top surface of the wireless charging board 1. Specifically, the magnetic sheet 7 is annular, and the magnetic sheet 7 is located at the outer circle concentric position of the coil 6 on the top surface of the wireless charging board 1 corresponding to the induction area.

[0021] In this embodiment, the magnetic sheet 7 is a non-conductive magnet to prevent the magnetic sheet 7 from affecting the conductive head 8, and preferably a rubber magnet or a ferrite magnet.

[0022] In this embodiment, the conductive head 8 includes at least two contacts 801, and the contacts 801 are used to contact with the power receiving contact points of the notebook to conduct electricity.

[0023] In this embodiment, an expansion interface 10 is also provided on the side of the wireless charging plate 1. The expansion interface 10 is electrically connected to the power interface 2, and a replaceable data cable, such as a Lightning data cable, a Micro USB data cable, a Type-C data cable, etc., is plugged into the expansion interface 10 for wired charging of mobile phones and other devices.

[0024] When charging is needed, the wireless charging board 1 body is powered through the power interface 2, and then the notebook with the wireless charging base is placed in the coil 6 induction area on the top surface of the wireless charging board 1. The control circuit board 5 and coil 6 built into the wireless charging board 1 transmit electromagnetic signals through the wireless charging board 1, and the built-in coil of the notebook wireless charging base senses the electromagnetic signals and generates an induced current, thereby realizing wireless charging using the principle of electromagnetic induction. In addition, since the wireless charging rate is average, a charging port can be set at the bottom of the notebook for this purpose, and the charging port has a power receiving contact point corresponding to the position and number of the contact 801 of the conductive head 8. When placing the notebook, the magnetic suction sheet 7 firmly absorbs the notebook to realize wireless charging, and at the same time aligns the contact 801 with the power receiving contact point of the notebook. The current delivered by the power interface 2 is directly passed into the notebook through the conductive head 8 to realize direct power supply. In this way, when the notebook is used while wirelessly charging, the phenomenon of insufficient power supply can be prevented.

[0025] Example 2

[0026] like Figure 2 As shown, based on the structure of Example 1, the coil 6 further adopts a four-coil structure, and the four coils can emit electromagnetic signals at the same time, which can improve the charging efficiency. In order to avoid electromagnetic interference between adjacent coils 6, a metal isolation plate 9 is arranged between adjacent coils 6 to play a magnetic shielding role. Whether to use a single coil or a multi-coil structure depends on the power of the laptop.

[0027] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A magnetic laptop wireless charger, comprising a wireless charging plate (1), characterized in that: The wireless charging board (1) is provided with a power interface (2) on the side, and a charging cable (4) with a power adapter connector (3) is plugged into the power interface (2). A control circuit board (5) and a coil (6) are provided inside the wireless charging board (1), and the power interface (2) is electrically connected to the control circuit board (5) and the coil (6) in sequence. A magnetic sheet (7) is provided on the top surface of the wireless charging board (1), and a conductive head (8) is provided at the position of the magnetic sheet (7), and the conductive head (8) is electrically connected to the power interface (2); The position of the magnetic attraction sheet (7) on the top surface of the wireless charging plate (1) is offset from the induction area corresponding to the coil (6) on the top surface of the wireless charging plate (1); The magnetic attraction sheet (7) is in the shape of a circular ring, and is located at a concentric position of the outer circle of the coil (6) corresponding to the sensing area on the top surface of the wireless charging plate (1); The magnetic attraction sheet (7) adopts a non-conductive magnet; The wireless charging plate (1) is also provided with an expansion interface (10) on the side, the expansion interface (10) is electrically connected to the power interface (2), and a replaceable data cable is plugged into the expansion interface (10).

2. The magnetic laptop wireless charger according to claim 1, characterized in that: The coil (6) is a single coil or a multi-coil structure, and when the coil (6) is a multi-coil structure, a metal isolation plate (9) is provided between adjacent coils (6).

3. The magnetic laptop wireless charger according to claim 2, characterized in that: The multi-coil is a double-coil, triple-coil or quad-coil structure.

4. The magnetic laptop wireless charger according to claim 1, characterized in that: The conductive head (8) comprises at least two contacts (801), and the contacts (801) are used to contact with power receiving contact points of the notebook to conduct electricity.

5. The magnetic laptop wireless charger according to claim 1, characterized in that: The non-conductive magnet is a rubber magnet or a ferrite magnet.

Images