Wireless charging positioning structure and wireless charging module

Abstract

The wireless charging positioning structure comprises a permanent magnet and is characterized by further comprising a base capable of being attracted by the permanent magnet, a containing groove is formed in the middle of the interior of the base in a penetrating mode, a limiting ring made of non-magnetic materials is arranged in the containing groove, and magnetic poles of the permanent magnet are arranged on the left side and the right side of the permanent magnet in the horizontal direction. The permanent magnet is arranged in the limiting ring in a turnover mode. According to the wireless charging positioning structure, the base is arranged, the limiting ring is arranged in the base, and the permanent magnet capable of being overturned is arranged in the limiting ring, so that quick positioning and stable butt joint with the wireless charging positioning structure can be realized no matter how the magnetic pole direction of a magnetic attraction piece of external equipment is set.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging, in particular to a wireless charging positioning structure and a wireless charging module. Background Art

[0002] A wireless charger is a device that uses the principle of electromagnetic induction to wirelessly charge mobile phones, headphones, watches, etc. A key point affecting the wireless charging efficiency is the alignment of the coils when the transmitter and receiver are coupled for charging. The existing positioning method of wireless charging devices is to respectively set magnetic attraction parts on the wireless charging device and the external device docked with it, and utilize the principle that the magnetic poles of the magnetic attraction parts attract each other with opposite polarities to achieve rapid positioning and stable docking between the two. However, there are many types of existing external devices and different manufacturers, resulting in different settings for the directions of the magnetic poles of their magnetic attraction parts. For example, the directions of the magnetic poles of the magnetic attraction parts of Apple watches and Samsung watches are opposite, while the direction of the magnetic poles of the magnetic attraction parts of the same wireless charging device is fixed, so it cannot match different external devices, making it very inconvenient to use. Summary of the Invention

[0003] The utility model provides a wireless charging positioning structure and a wireless charging module, which solve the problem that the direction of the magnetic poles of the magnetic attraction parts of the existing wireless charging device is fixed, resulting in the inability to match external devices with different magnetic pole directions.

[0004] A wireless charging positioning structure includes a permanent magnet. It is characterized in that it further includes a base that can be adsorbed by the permanent magnet. A receiving groove is formed through the middle of the base. A limiting ring made of non-magnetic material is arranged in the receiving groove. The magnetic poles of the permanent magnet are arranged on the left and right sides in its horizontal direction. The permanent magnet is rotatably arranged in the limiting ring.

[0005] Further, the shape of the permanent magnet is disc-shaped. The permanent magnet is arranged in the limiting ring in a vertical state. The permanent magnet includes end parts on the left and right sides in its horizontal direction and an annular edge between the end parts. The horizontal plane where the end parts are located is parallel to the horizontal plane where the receiving groove is located. The two magnetic poles of the permanent magnet are respectively arranged on the end parts on its two sides.

[0006] Further, the shape of the permanent magnet is round disc-shaped, and the diameter of the end face of its end part is smaller than the inner diameter of the limiting ring.

[0007] Further, the shape of the permanent magnet is spherical, and its magnetic poles are distributed on the left and right sides in its horizontal direction.

[0008] Further, a wire slot is formed on the base outside the receiving groove.

[0009] A wireless charging module includes a housing. A wireless charging coil and the above-mentioned wireless charging positioning structure are arranged in the housing.

[0010] Furthermore, a PCB board is arranged inside the housing, and the PCB board is electrically connected to the wireless charging coil.

[0011] The beneficial technical effects of the present utility model are as follows:

[0012] A wireless charging positioning structure includes a permanent magnet 3 and a base 1 that can be adsorbed by the permanent magnet 3. A receiving groove 11 is formed through the middle of the base 1. A limiting ring 2 made of non-magnetic material is arranged inside the receiving groove 11. The magnetic poles of the permanent magnet 3 are arranged on the left and right sides in its horizontal direction, and the permanent magnet 3 is rotatably arranged inside the limiting ring 2.

[0013] 1. By providing the base, arranging the limiting ring inside the base, and arranging the rotatable permanent magnet inside the limiting ring, it enables quick positioning and stable docking with this wireless charging positioning structure regardless of the magnetic pole direction of the magnetic part of the external device.

[0014] 2. The product has a simple structure, is convenient to use, and has relatively low production and usage costs. Description of the Drawings

[0015] Figure 1 is an exploded view of the wireless charging positioning structure of the present utility model.

[0016] Figure 2 is a top view of the wireless charging positioning structure of the present utility model.

[0017] Figure 3 is a schematic diagram of the permanent magnet of the present utility model.

[0018] Figure 4 is a schematic diagram of the magnetic pole distribution of the permanent magnet of the present utility model.

[0019] Figure 5 is a schematic diagram of the flipping and resetting of the permanent magnet of the present utility model.

[0020] Figure 6 is a schematic diagram of the use state of the wireless charging positioning structure of the present utility model.

[0021] Figure 7 is a three-dimensional view of the wireless charging positioning structure of the present utility model.

[0022] Figure 8 is an exploded view of the wireless charging module of the present utility model.

[0023] Description of the reference numerals: 1, base; 11, receiving groove; 12, wire placement groove; 2, limiting ring; 3, permanent magnet; 31, end; 32, edge; 4, housing; 5, wireless charging coil; 6, PCB board; 7, magnetic part. Detailed Embodiments

[0024] The following further clearly and completely describes the technical solution of the present utility model in conjunction with the accompanying drawings through embodiments. The described embodiments are only a part of the embodiments of the present utility model. For those skilled in the art, without creative work, all other embodiments obtained fall within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicators will also change accordingly.

[0026] As Figure 1-7 shown, a wireless charging positioning structure includes a permanent magnet 3 and a base 1 that can be adsorbed by the permanent magnet 3. A receiving groove 11 runs through the middle of the base 1. A limiting ring 2 made of non-magnetic material is arranged in the receiving groove 11. The magnetic poles of the permanent magnet 3 are arranged on the left and right sides in its horizontal direction. The permanent magnet 3 is rotatably arranged in the limiting ring 2.

[0027] The base 1 is made of known materials that can be adsorbed by the permanent magnet 3, such as: iron, nickel, cobalt and their alloys, ferrite materials (manganese-zinc ferrite, nickel-zinc ferrite...), etc.; the permanent magnet 3 is made of known rare earth permanent magnet materials (neodymium iron boron Nd2Fe14B), samarium cobalt (SmCo), alnico (AlNiCo), ferrite permanent magnet materials, etc.; the limiting ring 2 is used to limit the movement range of the permanent magnet 3 to prevent the permanent magnet 3 from adsorbing on the base 1 when it is flipped or stationary. The limiting ring 2 is made of non-magnetic materials that are not adsorbed by the permanent magnet 3, such as: metal non-magnetic materials: copper, aluminum, etc., non-metal non-magnetic materials: plastics, ceramics, rubbers, glasses, etc., and other known composite materials.

[0028] As Figure 3-4As shown, the shape of the permanent magnet 3 is disc-shaped, which can be circular disc-shaped, square disc-shaped, elliptical disc-shaped, etc. The disc-shaped permanent magnet 3 is arranged in the limiting ring 2 in a vertical state. The permanent magnet 3 includes end portions 31 on its left and right sides in the horizontal direction and an annular edge 32 between the end portions 31. The horizontal plane where the end portions 31 are located is parallel to the horizontal plane where the receiving groove 11 is located. The two magnetic poles (N pole and S pole) of the permanent magnet 3 are respectively arranged on the end portions 31 on its two sides. Since the magnetic force of the magnetic poles on both sides of the permanent magnet 3 is the strongest, the magnetic poles will generate an attractive force on the inner wall of the receiving groove 11 through the limiting ring 2. Coupled with the constraint of the limiting ring 2 on the permanent magnet 3 (because in reality, the attractive forces generated by the magnetic poles on the inner wall of the receiving groove 11 cannot be exactly the same, the permanent magnet 3 will generate a thrust on a certain side inner wall of the limiting ring 2, the thrust will have a reaction force, and there will be a frictional force between the permanent magnet 3 and the inner wall of the limiting ring 2), etc., the disc-shaped permanent magnet 3 is arranged in the limiting ring 2 in a vertical state. In actual use, for the outer shell of the product that fixes the wireless charging positioning structure, when the permanent magnet 3 is stationary or flipped, it can generate a supporting force on the edge 32 part it contacts, so that it can be set in the limiting ring 2 in a more stable vertical state.

[0029] As Figure 5 shown, when the N pole or S pole of the magnetic attracting member 7 of the external device approaches the disc-shaped permanent magnet 3 from directly above or directly below the receiving groove 11, the magnetic poles on both sides of the permanent magnet 3 are respectively affected by the attractive force and the repulsive force, and then drive the permanent magnet 3 to flip, so that the N pole of its magnetic pole is adsorbed to the S pole of the magnetic attracting member 7 or the S pole of the magnetic pole is adsorbed to the N pole of the magnetic attracting member 7 to complete the docking. At this time, the magnetic force of the magnetic pole at the end of the permanent magnet 3 far from the magnetic attracting member 7 is the strongest, and the magnetic force of the magnetic pole at the end adsorbed to the magnetic attracting member 7 is smaller; when the magnetic attracting member 7 of the external device is separated from the permanent magnet 3, at this time, the attractive force of the magnetic pole of the permanent magnet 3 on the inner wall of the receiving groove 11 will drive the permanent magnet 3 to flip, so that it returns to the vertical state again.

[0030] When the permanent magnet 3 is circular disc-shaped, the diameter of the end face of its end portion 31 is smaller than the inner diameter of the limiting ring 2. When the permanent magnet 3 is square disc-shaped, the diagonal length of the end face of its end portion 31 is smaller than the inner diameter of the limiting ring 2. When the permanent magnet 3 is elliptical disc-shaped, the length of its major axis is smaller than the inner diameter length of the limiting ring 2; so that the permanent magnet 3 can freely flip in the limiting ring 2 without being restricted. The permanent magnet 3 can freely flip under the influence of the magnetic attracting member 7 of the external device, change the direction of its magnetic pole, and dock with the magnetic attracting member 7.

[0031] As Figure 4As shown, in other embodiments, the shape of the permanent magnet 3 can be spherical in addition to being disc-shaped. Its magnetic poles are distributed on the left and right sides in its horizontal direction. Under the action of the gravitational force of the two-side magnetic poles on the inner wall of the receiving groove 11 and the restraint of the limiting ring 2, it maintains a stable state. The principle is the same as that of the disc-shaped permanent magnet 3 mentioned above. During actual use, for the outer shell of the product that fixes the wireless charging positioning structure, when the permanent magnet 3 is stationary or flipped, it can generate a supporting force on the bottom of the spherical permanent magnet 3 it contacts, so that it can be set more stably in the limiting ring 2 in a vertical state. When the magnetic attracting member 7 of the external device approaches, the spherical permanent magnet 3 can be flipped so that the magnetic pole corresponding to the magnetic attracting member 7 faces downward and adsorbs with the magnetic attracting member 7 to complete the docking.

[0032] As Figure 6 shown, during use, this wireless charging positioning structure can be arranged on the outer periphery of the wireless charging coil 5 and adsorptively docked with the magnetic attracting member 7 of the external device, or can be arranged inside the wireless charging coil 5, so that the wireless charging coil 5 can complete the docking quickly and accurately. No matter which use mode, it is not necessary to distinguish the magnetic poles of the magnetic attracting member 7 of the external device docked with it, and it is convenient to use.

[0033] As Figure 7 shown, a wire placement groove 12 is opened on the base 1 outside the receiving groove 11 for placing the wireless charging coil 5.

[0034] As Figure 8 shown, a wireless charging module includes a housing 4, and a wireless charging coil 5 and the above-mentioned wireless charging positioning structure are arranged inside the housing 4.

[0035] As Figure 8 shown, the wireless charging coil 5 is installed in the wire placement groove 12. At this time, since the base 1 is made of a material that can be adsorbed by the disc-shaped permanent magnet 3, it can play the role of a magnetic isolation sheet, can reduce magnetic field interference, and improve the charging efficiency of the wireless charging coil 5.

[0036] As Figure 8 shown, the wireless charging module further includes a PCB board 6, and the PCB board 6 is arranged inside the housing 4 and is electrically connected to the wireless charging coil 5.

[0037] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited accordingly. All equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A wireless charging positioning structure, including a permanent magnet (3), characterized in that, It further includes a base (1) that can be adsorbed by a permanent magnet (3). A receiving groove (11) is formed through the middle inside the base (1). A limiting ring (2) made of non-magnetic material is arranged in the receiving groove (11). The magnetic poles of the permanent magnet (3) are arranged on the left and right sides in its horizontal direction. The permanent magnet (3) is rotatably arranged in the limiting ring (2).

2. The wireless charging positioning structure according to claim 1, characterized in that The permanent magnet (3) is in the shape of a disc and is arranged in the limiting ring (2) in a vertical state. The permanent magnet (3) includes end portions (31) on its left and right sides in the horizontal direction and an annular edge (32) between the end portions (31). The horizontal plane where the end portions (31) are located is parallel to the horizontal plane where the receiving groove (11) is located. The two magnetic poles of the permanent magnet (3) are respectively arranged on the end portions (31) on both sides thereof.

3. The wireless charging positioning structure according to claim 2, characterized in that, The permanent magnet (3) is in the shape of a round disc, and the diameter of the end face of its end portion (31) is smaller than the inner diameter of the limiting ring (2).

4. The wireless charging positioning structure according to claim 1, characterized in that, The permanent magnet (3) is in the shape of a sphere, and its magnetic poles are distributed on the left and right sides in its horizontal direction.

5. The wireless charging positioning structure according to claim 1, characterized in that A wire placement groove (12) is formed in the base (1) on the outer periphery of the receiving groove (11).

6. A wireless charging module, comprising a housing (4), wherein a wireless charging coil (5) is arranged inside the housing (4), and is characterized in that, The wireless charging positioning structure according to any one of claims 1-5 is further arranged in the housing (4).

7. A wireless charging module according to claim 6, wherein A PCB board (6) is arranged in the housing (4), and the PCB board (6) is electrically connected to the wireless charging coil (5).

Images