Magnetic conductive sheet fixing mechanism and wireless charger

Abstract

The utility model discloses a magnetic conductive sheet fixing mechanism and a wireless charger, the magnetic conductive sheet fixing mechanism comprises a support and a magnetic conductive sheet, the support is provided with an accommodating port, the accommodating port and the magnetic conductive sheet extend along a circular track, the magnetic conductive sheet is arranged in the accommodating port and is in running fit with the accommodating port, and the magnetic conductive sheet is arranged in the accommodating port. The side wall of the containing opening is provided with at least two L-shaped clamping openings, vertical grooves of the L-shaped clamping openings extend to the top of the support, at least two elastic arms are formed on the bottom wall of the containing opening, limiting protruding buckles in one-to-one correspondence with the L-shaped clamping openings are formed on the inner side of the magnetic conductive sheet, and the limiting protruding buckles and the L-shaped clamping openings are in one-to-one correspondence. The limiting convex buckle enters the L-shaped bayonet along the vertical groove of the L-shaped bayonet, when the magnetic conductive sheet is rotated, the limiting convex buckle is clamped into the transverse groove of the L-shaped bayonet, and the elastic arm elastically abuts against the bottom of the magnetic conductive sheet. The fixing structure has the characteristics of convenience in assembly, reliable fixing relation and the like.

Description

Technical Field

[0001] This utility model relates to wireless charging devices, and more particularly to a magnetic sheet fixing mechanism and a wireless charger. Background Technology

[0002] Wireless chargers use built-in magnetic components to magnetically attach to mobile phones. In existing wireless chargers, the built-in magnetic components are generally arc-shaped or ring-shaped. To increase the magnetic flux, a magnetic conductive sheet, also arc-shaped or ring-shaped, is usually attached to the bottom of the magnetic component. In current technology, the magnetic conductive sheet needs to be fixed to the bottom shell or base of the wireless charger by means of glue. This fixing method is not only inefficient in assembly, but also prone to coming unglued during use, which can lead to abnormal noises or uneven attraction, directly affecting the product quality of the wireless charger. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a magnetic sheet fixing mechanism and a wireless charger that are easy to assemble and have a reliable fixing relationship, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] A magnetic sheet fixing mechanism includes a support and a magnetic sheet. The support has a receiving opening, and both the receiving opening and the magnetic sheet extend along a circular trajectory. The magnetic sheet is disposed within the receiving opening and the two are rotatably engaged. The side wall of the receiving opening has at least two L-shaped latches, the vertical grooves of the L-shaped latches extending to the top of the support. The bottom wall of the receiving opening has at least two elastic arms. The inner side of the magnetic sheet has limiting protrusions corresponding to the L-shaped latches. The limiting protrusions enter the L-shaped latches along the vertical grooves of the L-shaped latches. When the magnetic sheet is rotated, the limiting protrusions engage with the transverse grooves of the L-shaped latches. The elastic arms elastically abut against the bottom of the magnetic sheet.

[0006] Preferably, the elastic arm is provided with a limiting protrusion, which abuts against the bottom of the magnetic sheet.

[0007] Preferably, the limiting protrusion is a spherical protrusion.

[0008] Preferably, the sidewall of the receiving port is provided with three L-shaped bayonets.

[0009] Preferably, the bottom wall of the receiving port is evenly distributed with three elastic arms.

[0010] Preferably, the transverse groove entrance of the L-shaped bayonet has a chamfered portion.

[0011] A wireless charger includes a magnet assembly, a wireless charging coil, and the aforementioned magnetic sheet fixing mechanism. The magnet assembly is attracted to the top of the magnetic sheet, the wireless charging coil is fixed to the support, and the wireless charging coil is located on the inner ring side of the magnet assembly.

[0012] Preferably, it includes a bottom shell, and the support is fixed inside the bottom shell.

[0013] Preferably, the support has multiple screw holes, and the support and the bottom shell are fixedly connected by screws passing through the screw holes.

[0014] Preferably, a cover is fixed to the top of the bottom shell, and the cover covers the magnet assembly and the wireless charging coil.

[0015] In the magnetic sheet fixing mechanism disclosed in this utility model, the magnetic sheet is used for magnetic attraction with a magnet assembly. The receiving opening can be a stepped opening or a slot. Both the receiving opening and the magnetic sheet extend along a circular trajectory so that the magnetic sheet can rotate relative to the receiving opening. During assembly, the limiting protrusion is aligned with the vertical slot of the L-shaped bayonet, and then the magnetic sheet is placed vertically in the receiving opening. After the limiting protrusion enters the bottom of the vertical slot of the L-shaped bayonet, the elastic abutment stress between the elastic arm and the magnetic sheet is overcome and the magnetic sheet is rotated, thereby locking the limiting protrusion into the transverse slot of the L-shaped bayonet. This completes the assembly of the magnetic sheet and the support. Based on the elastic force provided by the elastic arm and the abutment relationship between the limiting protrusion and the L-shaped bayonet, product assembly is convenient, the fixing relationship is reliable, and no glue is required for fixing, which can save costs and improve assembly efficiency. Attached Figure Description

[0016] Figure 1 An exploded view of a wireless charger;

[0017] Figure 2 This is an exploded view of the magnetic sheet fixing mechanism;

[0018] Figure 3 Three-dimensional structure for fixing magnetic sheet Figure 1 ;

[0019] Figure 4 Three-dimensional structure for fixing magnetic sheet Figure 2 . Detailed Implementation

[0020] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0021] This utility model discloses a magnetic sheet fixing mechanism, combined with Figures 1 to 4As shown, it includes a support 1 and a magnetic sheet 2. The support 1 is provided with a receiving opening 10. Both the receiving opening 10 and the magnetic sheet 2 extend along a circular trajectory. The magnetic sheet 2 is disposed in the receiving opening 10 and the two are rotatably engaged. The side wall of the receiving opening 10 is provided with at least two L-shaped latches 11. The vertical groove of the L-shaped latch 11 extends to the top of the support 1. The bottom wall of the receiving opening 10 is formed with at least two elastic arms 12. The inner side of the magnetic sheet 2 is formed with limiting protrusions 20 corresponding to the L-shaped latches 11. The limiting protrusions 20 enter the L-shaped latches 11 along the vertical groove of the L-shaped latches 11. When the magnetic sheet 2 is rotated, the limiting protrusions 20 are engaged in the horizontal groove of the L-shaped latches 11. The elastic arms 12 elastically abut against the bottom of the magnetic sheet 2.

[0022] In the above structure, the magnetic conductive sheet 2 is used for magnetic attraction with the magnet assembly. The receiving opening 10 can be a stepped opening or a slot. Both the receiving opening 10 and the magnetic conductive sheet 2 extend along a circular trajectory, allowing the magnetic conductive sheet 2 to rotate relative to the receiving opening 10. During assembly, the limiting protrusion 20 is aligned with the vertical slot of the L-shaped latch 11, and then the magnetic conductive sheet 2 is placed vertically in the receiving opening 10. Once the limiting protrusion 20 enters the bottom of the vertical slot of the L-shaped latch 11, then... Then, the elastic abutment stress between the elastic arm 12 and the magnetic sheet 2 is overcome and the magnetic sheet 2 is rotated, thereby inserting the limiting protrusion 20 into the transverse groove of the L-shaped bayonet 11, thus completing the assembly of the magnetic sheet 2 and the support 1. Based on the elastic force provided by the elastic arm 12 and the abutment fit between the limiting protrusion 20 and the L-shaped bayonet 11, the product assembly is convenient, the fixing relationship is reliable, and no glue is required for fixing, which can save costs and improve assembly efficiency.

[0023] To ensure a tight fit between the elastic arm 12 and the bottom of the magnetic sheet 2, in this embodiment, please refer to... Figure 2 The elastic arm 12 is provided with a limiting protrusion 13, which abuts against the bottom of the magnetic sheet 2.

[0024] As a preferred embodiment, the limiting protrusion 13 is a spherical protrusion. The advantage of setting the limiting protrusion 13 as a spherical protrusion in this embodiment is that it can both tightly abut against the magnetic conductive sheet 2 and avoid bringing excessive friction to the magnetic conductive sheet 2, thereby taking into account both the functions of fixed fit and convenient disassembly and assembly.

[0025] As a preferred embodiment, the sidewall of the receiving opening 10 is provided with three L-shaped latches 11. The bottom wall of the receiving opening 10 is provided with three elastic arms 12. In practical applications, the above components are not limited to being provided in three forms.

[0026] It should be noted that in this embodiment, both the receiving port 10 and the magnetic conductive sheet 2 extend along a circular trajectory. The extension of both along the circular trajectory includes two forms: a closed circle and an open circle. Taking the magnetic conductive sheet 2 as an example, when it is a closed circle, it is a complete ring; when it is an open circle, it is a "C"-shaped component with an opening. Both forms of the receiving port 10 and the magnetic conductive sheet 2 are within the protection scope of this utility model.

[0027] To facilitate the insertion of the limiting protrusion 20 into the transverse groove of the L-shaped latch 11, in this embodiment, a chamfered portion 14 is formed at the entrance of the transverse groove of the L-shaped latch 11.

[0028] Based on this, the present invention also proposes a wireless charger, combined with Figures 1 to 4 As shown, it includes a magnet assembly 3, a wireless charging coil, and the magnetic sheet fixing mechanism described above. The magnet assembly 3 is attracted to the top of the magnetic sheet 2, the wireless charging coil is fixed on the support 1, and the wireless charging coil is located on the inner ring side of the magnet assembly 3.

[0029] This embodiment includes a base shell 4, and the support 1 is fixed inside the base shell 4. Further, the support 1 has multiple screw holes 15, and the support 1 and the base shell 4 are fixedly connected by screws passing through the screw holes 15. In another embodiment of this utility model, the support 1 and the base shell 4 can also be configured as an integrally formed structure.

[0030] As a preferred embodiment, a cover 5 is fixed to the top of the bottom shell 4, and the cover 5 covers the magnet assembly 3 and the wireless charging coil.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A magnetic sheet fixing mechanism, characterized in that, It includes a support (1) and a magnetic sheet (2). The support (1) has a receiving opening (10). Both the receiving opening (10) and the magnetic sheet (2) extend along a circular trajectory. The magnetic sheet (2) is disposed in the receiving opening (10) and the two are rotatably engaged. The side wall of the receiving opening (10) has at least two L-shaped slots (11). The vertical grooves of the L-shaped slots (11) extend to the top of the support (1). The bottom wall of the receiving opening (10) The magnetic sheet (2) has at least two elastic arms (12). The inner side of the magnetic sheet (2) has a limiting protrusion (20) that corresponds one-to-one with the L-shaped bayonet (11). The limiting protrusion (20) enters the L-shaped bayonet (11) along the vertical groove. When the magnetic sheet (2) is rotated, the limiting protrusion (20) is engaged in the horizontal groove of the L-shaped bayonet (11). The elastic arm (12) elastically abuts against the bottom of the magnetic sheet (2).

2. The magnetic sheet fixing mechanism as described in claim 1, characterized in that, The elastic arm (12) is provided with a limiting protrusion (13), which abuts against the bottom of the magnetic sheet (2).

3. The magnetic sheet fixing mechanism as described in claim 2, characterized in that, The limiting protrusion (13) is a spherical protrusion.

4. The magnetic sheet fixing mechanism as described in claim 1, characterized in that, The sidewall of the receiving port (10) is evenly distributed with three L-shaped slots (11).

5. The magnetic sheet fixing mechanism as described in claim 1, characterized in that, The bottom wall of the receiving port (10) is evenly distributed with three elastic arms (12).

6. The magnetic sheet fixing mechanism as described in claim 1, characterized in that, The L-shaped bayonet (11) has a chamfered portion (14) at the transverse groove entrance.

7. A wireless charger, characterized in that, It includes a magnet assembly (3), a wireless charging coil, and a magnetic sheet fixing mechanism as described in any one of claims 1 to 6. The magnet assembly (3) is attracted to the top of the magnetic sheet (2), the wireless charging coil is fixed on the support (1), and the wireless charging coil is located on the inner ring side of the magnet assembly (3).

8. The wireless charger as described in claim 7, characterized in that, It includes a bottom shell (4), and the support (1) is fixed inside the bottom shell (4).

9. The wireless charger as described in claim 8, characterized in that, The support (1) has multiple screw holes (15), and the support (1) and the bottom shell (4) are fixedly connected by screws passing through the screw holes (15).

10. The wireless charger as described in claim 8, characterized in that, The top of the bottom shell (4) is fixed with a face cover (5), which covers the magnet assembly (3) and the wireless charging coil.

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