Anti-interference wireless charging base with electromagnetic shielding function

Abstract

The utility model discloses an anti-interference wireless charging base with an electromagnetic shielding function, which comprises a base, a wireless charging induction coil is arranged on the base, a shielding shell for covering the periphery and the top of the wireless charging induction coil is buckled on the base, a charging opening matched with charging equipment is formed in the top of the shielding shell, and the wireless charging induction coil is arranged on the shielding shell. The charging opening is provided with a conductive pad which is tightly attached to the edge of the charging opening and is used for placing charging equipment. The outer wall of the base is covered with a shielding coaming which is in sealed connection with the bottom of the shielding shell and wraps the base. According to the utility model, electromagnetic radiation generated by the induction coil and external electromagnetic interference can be effectively blocked, and the stability and safety of wireless charging are ensured.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, specifically to an anti-interference wireless charging base with electromagnetic shielding function. Background Technology

[0002] With the continuous development of wireless charging technology, wireless charging devices have been widely used in people's lives and work. However, existing wireless charging bases have some problems during use. On the one hand, the wireless charging induction coil generates electromagnetic radiation when working, which may interfere with surrounding electronic devices, such as affecting the normal operation of mobile phones and computers. On the other hand, external electromagnetic interference may also affect the charging efficiency and stability of the wireless charging base, leading to problems such as slower charging speed and charging interruption. Therefore, a wireless charging base that can effectively prevent electromagnetic interference is needed to improve the performance and safety of wireless charging. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an anti-interference wireless charging base with electromagnetic shielding function, so as to solve the problem that existing wireless charging bases are easily interfered with in complex electromagnetic environments.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] An anti-interference wireless charging base with electromagnetic shielding function includes a base on which a wireless charging induction coil is disposed. The base is fitted with a shielding shell that covers the wireless charging induction coil around its perimeter and top. The top of the shielding shell has a charging opening adapted to the charging device. A conductive pad that fits tightly against the edge of the charging opening is provided at the charging opening for placing the charging device. The outer wall of the base is covered with a shielding enclosure that is sealed to the bottom of the shielding shell and encloses the base.

[0006] Preferably, the wireless charging induction coil is connected to a lead wire, the other end of which passes through the side wall of the shielding housing and is connected to a plug for an external power source.

[0007] Preferably, the charging opening is a stepped opening, and the conductive pad is an elastic conductive material that makes good contact with the outer casing of the charging device.

[0008] Preferably, the base has heat dissipation holes distributed around the wireless charging induction coil, and the heat dissipation holes extend to the side wall of the base away from the outlet of the wireless charging induction coil.

[0009] Preferably, an electromagnetic shielding mesh is embedded in the heat dissipation hole.

[0010] Preferably, the shielding plate has a through hole communicating with the heat dissipation hole at a position opposite to the heat dissipation hole outlet.

[0011] Preferably, the top of the shielding housing is provided with a cover, one side of which is pivotally connected to the shielding housing, and the other side of which is locked to the shielding housing.

[0012] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0013] This invention can effectively realize electromagnetic screen: through the multi-layer structure of shielding shell, conductive pad and shielding plate 5, it can effectively block the electromagnetic radiation generated by the induction coil and the electromagnetic interference from the outside, and ensure the stability and safety of wireless charging.

[0014] This invention combines heat dissipation and shielding: by combining heat dissipation holes with shielding mesh and through holes, it achieves efficient heat dissipation while avoiding electromagnetic leakage.

[0015] This invention has high adaptability: the stepped opening design makes it compatible with a variety of devices, and the elastic conductive pad ensures reliable contact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] The components are: 1. base, 2. wireless charging induction coil, 3. shielding shell, 31. charging opening, 4. conductive pad, 5. shielding plate, 51. through hole, 6. lead wire, 7. plug, 8. heat dissipation hole, 9. electromagnetic shielding mesh, and 10. shell cover. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] A wireless charging base with electromagnetic shielding to prevent interference, combined with Figure 1 As shown, the device includes a base 1, on which a wireless charging induction coil 2 is mounted; a shielding shell 3 is also mounted on the base 1, covering the sides and top of the wireless charging induction coil 2, and a charging opening 31 is provided on the top of the shielding shell 3, which is adapted to the charging device. A conductive pad 4 is provided at the charging opening 31, which is tightly fitted to the edge of the charging opening 31 and is used to place the charging device; a shielding plate 5 is provided on the outer wall of the base 1, which is sealed to the bottom of the shielding shell 3 and encloses the base 1 inside.

[0020] The shielding shell 3 and the shielding enclosure 5 constitute a closed shielding cavity. The shielding shell 3 and the shielding enclosure 5 are made of ferrite or permalloy materials. These materials have good magnetic permeability and can effectively guide and absorb electromagnetic waves, thereby achieving electromagnetic shielding of the charging coil.

[0021] The wireless charging induction coil 2 is connected to a lead wire 6. The other end of the lead wire 6 passes through the side wall of the shielding housing 3 and is connected to a plug 7, which enables the wireless charging induction coil 2 to be connected to an external power source. The lead wire 6 is insulated from the shielding housing 3, ensuring electrical connection while preventing the lead wire 6 from becoming a conduction path for electromagnetic interference.

[0022] The charging opening 31 is a stepped opening to accommodate charging devices of different sizes. The conductive pad 4 uses an elastic conductive material (such as silicone rubber-coated metal wire) to ensure tight contact with the charging device's casing and enhance the shielding effect.

[0023] The base 1 has heat dissipation holes 8 distributed around the wireless charging induction coil 2, extending to the side wall of the base 1 away from the outlet of the wireless charging induction coil 2. A through hole 51 is provided on the shielding plate 5 opposite to the outlet of the heat dissipation hole 8, communicating with the heat dissipation hole 8 to form an air circulation channel. This helps dissipate the heat generated during charging, preventing overheating of the base from affecting charging performance and device safety. An electromagnetic shielding mesh 9 is embedded in the heat dissipation hole 8 to prevent electromagnetic leakage through the heat dissipation hole 8.

[0024] The top of the shielding housing 3 is provided with a cover 10. One side of the cover 10 is pivotally connected to the shielding housing 3, and the other side of the cover 10 is locked to the shielding housing 3. When the wireless charging base is not in use, the cover 10 can be closed to protect the wireless charging induction coil 2.

[0025] In use, the electronic device requiring charging is placed on the conductive pad 4, which contacts the outer casing of the electronic device. The wireless charging induction coil 2 and the receiving coil in the electronic device transfer energy through electromagnetic induction, achieving wireless charging. The shielding shell 3, conductive pad 4, electromagnetic shielding mesh 9, and shielding plate 5 effectively block external electromagnetic interference, ensuring efficient and stable charging. Simultaneously, the heat dissipation holes 8 dissipate heat promptly, extending the lifespan of the base and the electronic device.

Claims

1. A wireless charging base with electromagnetic shielding function, comprising a base (1) and a wireless charging induction coil (2) disposed on the base (1), characterized in that: The base (1) is fitted with a shielding shell (3) that covers the wireless charging induction coil (2) around and on top. The top of the shielding shell (3) is provided with a charging opening (31) adapted to the charging device. A conductive pad (4) is provided at the charging opening (31) and is tightly fitted to the edge of the charging opening (31) for placing the charging device. The outer wall of the base (1) is covered with a shielding enclosure (5) that is sealed to the bottom of the shielding shell (3) and wraps the base (1) inside.

2. The anti-interference wireless charging base with electromagnetic shielding function according to claim 1, characterized in that: The wireless charging induction coil (2) is connected to a lead wire (6), and the other end of the lead wire (6) passes through the side wall of the shielding housing (3) and is connected to a plug (7) for external power supply.

3. The anti-interference wireless charging base with electromagnetic shielding function according to claim 1, characterized in that: The charging opening (31) is a stepped opening, and the conductive pad (4) is an elastic conductive material that makes good contact with the outer shell of the charging device.

4. The anti-interference wireless charging base with electromagnetic shielding function according to claim 1, characterized in that: The base (1) has heat dissipation holes (8) distributed around the wireless charging induction coil (2), and the heat dissipation holes (8) extend from the outlet of the wireless charging induction coil (2) to the side wall of the base (1).

5. The anti-interference wireless charging base with electromagnetic shielding function according to claim 4, characterized in that: An electromagnetic shielding mesh (9) is embedded in the heat dissipation hole (8).

6. The anti-interference wireless charging base with electromagnetic shielding function according to claim 4, characterized in that: The shielding plate (5) has a through hole (51) that communicates with the heat dissipation hole (8) at a position opposite to the outlet of the heat dissipation hole (8).

7. The anti-interference wireless charging base with electromagnetic shielding function according to claim 1, characterized in that: The top of the shielding housing (3) is provided with a cover (10), one side of the cover (10) is pivotally connected to the shielding housing (3), and the other side of the cover (10) is locked to the shielding housing (3).

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