Wireless charging magnet

Abstract

The wireless charging magnet comprises a base, a holder and a plurality of electromagnetic coils, the holder comprises a bottom fixing ring and an upper cover ring, a plurality of coil grooves with upward openings are formed in the bottom fixing ring, and the coil grooves are evenly distributed on the surface of the bottom fixing ring around the center of the bottom fixing ring. Positioning columns are arranged in the middles of the coil grooves, the number of the coil grooves is consistent with that of the electromagnetic coils, the electromagnetic coils are arranged in the coil grooves, the positioning columns penetrate through the middles of the electromagnetic coils, the upper cover ring can cover the bottom fixing ring, positioning buckles are arranged on the inner wall of the upper cover ring, and positioning clamping grooves are formed in the side wall of the bottom fixing ring. When the upper cover ring and the bottom fixing ring are covered, the positioning buckles and the positioning clamping grooves are buckled, assembly is easier and more convenient, bolts do not need to be used for sequentially fixing the multiple electromagnetic coils, installation is firmer, glue does not need to be used for connecting the electromagnetic coils and the bottom fixing ring, and the situation that the electromagnetic coils fall off due to glue aging is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electromagnets, in particular to a wireless charging magnet. Background Art

[0002] A wireless charger is a charging device that can achieve power transmission without being connected by a cable. It uses principles such as electromagnetic induction, magnetic resonance, or electric field coupling to transmit electrical energy from the charger to a receiving device, such as a smartphone, tablet computer, etc., thereby realizing wireless charging.

[0003] The electromagnet in the wireless charger uses the attracting effect of magnetic force to tightly attract the charger and the terminal device to be charged (such as a mobile phone, tablet computer, etc.) together. This attracting effect enables the terminal device to automatically align with the best charging area of the charger, thus reducing the trouble of manual alignment by the user and the problem of low charging efficiency caused by inaccurate alignment. The electromagnet in the wireless charger uses the attracting effect of magnetic force to tightly attract the charger and the terminal device to be charged (such as a mobile phone, tablet computer, etc.) together. This attracting effect enables the terminal device to automatically align with the best charging area of the charger, thus reducing the trouble of manual alignment by the user. Due to the positioning function of the electromagnet, the terminal device can always remain in the best charging area of the charger, which helps to maximize the charging efficiency.

[0004] The existing wireless charging magnets include a number of electromagnetic coils and a base. The base is annular, and the electromagnetic coils are evenly arranged on the surface of the base around the center of the base. There are usually two ways to connect the electromagnetic coils to the base. One is to install several electromagnetic coils to the surface of the base one by one through bolts, which is complex to assemble. The other is to bond them with glue, but the glue is prone to aging after long-term use, resulting in the detachment of the battery coils. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art solutions, the utility model provides a wireless charging magnet, which can effectively solve the technical problems of complex assembly using bolts and easy detachment of battery coils caused by aging of glue.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A wireless charging magnet, comprising a base, a cage and a plurality of electromagnetic coils. The cage is arranged on the surface of the base, and the plurality of electromagnetic coils are evenly distributed around the center of the cage at the edge of the cage. The cage includes a bottom fixing ring and an upper cover ring. A plurality of coil grooves with openings upward are arranged inside the bottom fixing ring. The coil grooves are evenly distributed on the surface of the bottom fixing ring around the center of the bottom fixing ring. Positioning columns are arranged in the middle of the plurality of coil grooves. The number of coil grooves is the same as the number of electromagnetic coils. The electromagnetic coils are arranged in the coil grooves, and the positioning columns pass through the middle of the electromagnetic coils. Thread-passing through grooves are arranged on the side walls of the coil grooves and extend to the surface of the bottom fixing ring. Wiring grooves are arranged on the surface of the bottom fixing ring and communicate with the thread-passing through grooves. The upper cover ring can cover the bottom fixing ring. Positioning buckles are arranged on the inner wall of the upper cover ring, and positioning card slots are arranged on the side wall of the bottom fixing ring. When the upper cover ring and the bottom fixing ring are covered, the positioning buckles are buckled with the positioning card slots.

[0008] Further, a plurality of lead grooves are arranged on the side wall of the bottom fixing ring, and the plurality of lead grooves are respectively arranged between two adjacent thread-passing through grooves.

[0009] Further, positioning side plates are arranged on the inner ring side wall of the upper cover ring, and wire groove baffles are arranged on the outer ring side wall of the upper cover ring. The positioning buckles are arranged on the side of the wire groove baffle close to the upper cover ring, and the positioning card slots are arranged on the outer ring side wall of the bottom fixing ring. When the upper cover ring and the bottom fixing ring are covered, the inner wall of the wire groove baffle after that fits with the outer ring side wall of the bottom fixing ring.

[0010] Further, a plurality of positioning holes are arranged on the surface of the upper cover ring. The number of positioning holes is the same as the number of positioning columns, and the positioning holes are aligned with the positioning columns. One end of the positioning column away from the electromagnetic coil can be inserted into the positioning holes.

[0011] Further, a mounting plate is arranged on the inner ring side wall of the bottom fixing ring. Connecting holes are arranged on both the mounting plate and the base. The bottom fixing ring can be fixedly connected with the base through screws passing through the connecting holes. Screw holes for installation in a wireless charger are arranged on the edge of the base.

[0012] Further, the cover ring is made of polypropylene, and the bottom fixing ring is made of polyethylene or polycarbonate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: The cage is composed of a bottom fixing ring and an upper cover ring. Coil grooves are arranged inside the bottom fixing ring, and the electromagnetic coils are arranged in the coil grooves. The upper cover ring can cover the bottom fixing ring, and the upper cover ring and the bottom fixing ring are connected by buckling the positioning buckles with the positioning card slots. The electromagnetic coils are inserted into the coil grooves from one end of the positioning columns. After the upper cover ring and the bottom fixing ring are covered, the bottom surface of the upper cover ring presses the surface of the electromagnetic coils, so that the electromagnetic coils are fixed in the coil grooves. The assembly is simpler and more convenient, and there is no need to use bolts to fix the plurality of electromagnetic coils in sequence, and the installation is more firm. There is no need to use glue to connect the electromagnetic coils with the bottom fixing ring, avoiding the electromagnetic coils falling off due to glue aging. Brief Description of the Drawings

[0014] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3 is a cross-sectional view of the present utility model;

[0017] Figure 4 is Figure 3 a partial enlarged view of part A in

[0018] Figure 5 is a three-dimensional schematic diagram of the present utility model after hiding the upper cover ring;

[0019] Figure 6 is Figure 5 a partial enlarged view of part B in

[0020] Reference numerals in the figures: 1 - base, 2 - electromagnetic coil, 3 - bottom fixing ring, 4 - upper cover ring, 5 - coil groove, 6 - positioning post, 7 - wire passing through groove, 8 - wiring groove, 9 - lead wire groove, 10 - positioning buckle, 11 - positioning card slot, 12 - positioning hole, 13 - positioning side plate, 14 - wire groove baffle, 15 - mounting plate, 16 - connection hole, 17 - screw hole. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Next, in conjunction with Figures 1-6 a detailed description of a wireless charging magnet of the present utility model will be given:

[0023] A wireless charging magnet, comprising a base 1, a holder, and a plurality of electromagnetic coils 2. The holder is disposed on the surface of the base 1, and the plurality of electromagnetic coils 2 are evenly distributed around the center of the holder at the edge of the holder. The holder includes a bottom fixing ring 3 and an upper cover ring 4. The cover ring is made of polypropylene, and the bottom fixing ring 3 is made of polyethylene and polycarbonate. A plurality of coil slots 5 with openings upward are provided in the bottom fixing ring 3. The coil slots 5 are evenly distributed around the center of the bottom fixing ring 3 on the surface of the bottom fixing ring 3. A positioning post 6 is provided in the middle of each of the plurality of coil slots 5. The number of coil slots 5 is the same as the number of electromagnetic coils 2. The electromagnetic coils 2 are disposed in the coil slots 5, and the positioning post 6 passes through the middle of the electromagnetic coils 2. A wire threading through slot 7 is provided on the side wall of the coil slot 5, and the wire threading through slot 7 extends to the surface of the bottom fixing ring 3. A wiring slot 8 is provided on the surface of the bottom fixing ring 3, and the wiring slot 8 is communicated with the wire threading through slot 7. The pins of the electromagnetic coils 2 pass through the wire threading through slot 7 and are disposed in the wiring slot 8. A plurality of lead slots 9 are provided on the side wall of the bottom fixing ring 3, and the plurality of lead slots 9 are respectively disposed between two adjacent wire threading through slots 7. The two pins of the electromagnetic coils 2 can be led out from the lead slots 9 in the wiring slot 8 and connected to the main control circuit board of the wireless charger.

[0024] The upper cover ring 4 can cover the bottom fixing ring 3. A positioning buckle 10 is provided on the inner wall of the upper cover ring 4, and a positioning slot 11 is provided on the side wall of the bottom fixing ring 3. When the upper cover ring 4 and the bottom fixing ring 3 are covered, the positioning buckle 10 and the positioning slot 11 are buckled. A plurality of positioning holes 12 are provided on the surface of the upper cover ring 4. The number of positioning holes 12 is the same as the number of positioning posts 6, and the positioning holes 12 are aligned with the positioning posts 6. One end of the positioning post 6 away from the electromagnetic coils 2 can be inserted into the positioning holes 12, which can prevent the upper cover ring 4 from rotating relative to the bottom fixing ring 3 along the axis after the upper cover ring 4 and the bottom fixing ring 3 are covered. A positioning side plate 13 is provided on the inner ring side wall of the upper cover ring 4, and a wire slot baffle 14 is provided on the outer ring side wall of the upper cover ring 4. The positioning buckle 10 is disposed on the side of the wire slot baffle 14 close to the upper cover ring 4, and the positioning slot 11 is provided on the outer ring side wall of the bottom fixing ring 3. When the upper cover ring 4 and the bottom fixing ring 3 are covered, the inner wall of the wire slot baffle 14 is attached to the outer ring side wall of the bottom fixing ring 3, and the wiring slot 8 is covered by the wire slot baffle 14, preventing the pins of the electromagnetic coils 2 from being disengaged from the wiring slot 8 under the action of external force.

[0025] An installation plate 15 is provided on the inner ring side wall of the bottom fixing ring 3. Connecting holes 16 are provided on both the installation plate 15 and the base 1. The bottom fixing ring 3 can be fixedly connected to the base 1 by screws passing through the connecting holes 16. A screw hole 17 for installation in the wireless charger is provided at the edge of the base 1.

[0026] A wireless charging magnet according to this embodiment, the cage is composed of a bottom fixing ring 3 and an upper cover ring 4. A coil groove 5 is provided in the bottom fixing ring 3, and the electromagnetic wire is arranged in the coil groove 5. The upper cover ring 4 can cover the bottom fixing ring 3. The upper cover ring 4 and the bottom fixing ring 3 are connected by buckling through a positioning buckle 10 and a positioning slot 11. The electromagnetic coil 2 is inserted into the coil groove 5 from one end of the positioning post 6. After the upper cover ring 4 and the bottom fixing ring 3 are covered, the bottom surface of the upper cover ring 4 presses against the surface of the electromagnetic coil 2, so that the electromagnetic coil 2 is fixed in the coil groove 5. The assembly is simpler and more convenient, without the need to use bolts to sequentially fix a plurality of electromagnetic coils 2, and the installation is more firm. There is no need to use glue to connect the electromagnetic coil 2 and the bottom fixing ring 3, avoiding the electromagnetic coil 2 falling off due to glue aging.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A wireless charging magnet, comprising a base, a holder and a plurality of electromagnetic coils, wherein the holder is arranged on the surface of the base, and the plurality of electromagnetic coils are evenly distributed around the center of the holder on the edge of the holder, characterized in that: The retaining frame includes a bottom fixing ring and an upper cover ring. A plurality of coil grooves with openings upward are arranged in the bottom fixing ring. The coil grooves are evenly distributed on the surface of the bottom fixing ring around the center of the bottom fixing ring. Positioning posts are arranged in the middle of the plurality of coil grooves. The number of the coil grooves is consistent with the number of the electromagnetic coils. The electromagnetic coils are arranged in the coil grooves, and the positioning posts pass through the middle of the electromagnetic coils. A wire threading groove is arranged on the side wall of the coil groove. The wire threading groove extends to the surface of the bottom fixing ring. A wiring groove is arranged on the surface of the bottom fixing ring. The wiring groove is connected with the wire threading groove. The upper cover ring can cover the bottom fixing ring. A positioning buckle is arranged on the inner wall of the upper cover ring. A positioning slot is arranged on the side wall of the bottom fixing ring. When the upper cover ring covers the bottom fixing ring, the positioning buckle is engaged with the positioning slot.

2. A wireless charging magnet according to claim 1, characterized in that: The side wall of the bottom fixing ring is provided with a plurality of wire guide grooves, and the plurality of wire guide grooves are respectively arranged between two adjacent wire threading through grooves.

3. A wireless charging magnet according to claim 1, characterized in that: A positioning side plate is arranged on the inner ring side wall of the upper cover ring, a wire slot baffle is arranged on the outer ring side wall of the upper cover ring, the positioning buckle is arranged on the side of the wire slot baffle close to the upper cover ring, and the positioning slot is arranged on the outer ring side wall of the bottom fixed ring. When the upper cover ring and the bottom fixed ring are covered together, the inner wall of the wire slot baffle fits with the outer ring side wall of the bottom fixed ring.

4. A wireless charging magnet according to any one of claims 1 to 3, characterized in that: The surface of the upper cover ring is provided with a plurality of positioning holes, the number of the positioning holes is consistent with the number of the positioning posts, and the positioning holes are aligned with the positioning posts, and the end of the positioning posts away from the electromagnetic coil can be inserted into the positioning holes.

5. A wireless charging magnet according to any one of claims 1 to 3, characterized in that: A mounting plate is provided on the inner ring side wall of the bottom fixing ring, and connecting holes are provided on the mounting plate and the base. The bottom fixing ring can be fixedly connected to the base by screws passing through the connecting holes, and screw holes for installation in the wireless charger are provided on the edge of the base.

6. A wireless charging magnet according to any one of claims 1 to 3, characterized in that: The cover ring is made of polypropylene, and the bottom fixing ring is made of polyethylene or polycarbonate.

Images