Wireless charger with ultra-thin shell

Abstract

The utility model discloses a wireless charger with an ultra-thin shell. The wireless charger comprises a base, an upper cover and a mainboard, the base is of a circular cavity structure with an opening in the upper portion and a containing cavity formed inside, a lower circular mounting groove is formed in the lower portion of the containing cavity, an upper circular mounting groove is formed in the upper portion of the containing cavity, the mainboard comprises a PCB on the lower portion, a circular plate in the middle and a coil on the upper portion, the vertical projection area of the PCB is smaller than that of the circular plate, a charging port is formed in one end of the PCB, and the charging port is connected with the charging port. A foam pad with the outline larger than 1 / 2 circle is embedded in the lower circular installation groove, a main board installation notch is formed in the foam pad, the circular board is installed in the lower circular installation groove, and the upper cover is installed in the upper circular installation groove. Through the design of the mounting groove in the base and the design of modularized assembly structures such as the mainboard and the foam pad, the wireless charger is convenient to assemble and compact in structural design, so that the whole wireless charger can be made into an ultrathin structure and is convenient to carry.

Description

Technical Field

[0001] This utility model belongs to the field of power adapter technology, specifically relating to a wireless charger with an ultra-thin shell. Background Technology

[0002] A wireless charger uses wireless charging technology. It employs an alternating magnetic field generated between coils, with a transmitting coil on the charger and a receiving coil on the electronic device being charged, thus achieving wireless charging by transferring electrical energy. Unlike traditional charging methods, it eliminates the need for a direct power cord connection between the charger and the device. However, existing wireless chargers have complex internal structures, are difficult to assemble, lack compactness, and are relatively thick, making them inconvenient to carry. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned problems by providing a wireless charger with an ultra-thin shell, which has a compact internal design, is thin, and is easy to assemble.

[0004] This utility model is achieved through the following technical solution:

[0005] A wireless charger with an ultra-thin casing includes a base, a top cover, and a motherboard; characterized in that: the base is a circular cavity structure with an opening at the top and an internal receiving cavity; the lower part of the receiving cavity has a lower circular mounting groove, and the upper part has an upper circular mounting groove; the upper circular mounting groove and the lower circular mounting groove are coaxial and the upper circular mounting groove has an inner diameter larger than the lower circular mounting groove; the inner annular surface between the upper and lower circular mounting grooves is parallel to the bottom surface of the base, and the uppermost outer annular surface of the base is also parallel to the bottom surface of the base; the side wall of the lower circular mounting groove has a charging port fixing hole extending to the outer side of the base; the motherboard includes a lower part... The PCB board comprises a central circular plate and an upper coil. The vertical projection area of ​​the PCB board is smaller than that of the circular plate. One end of the PCB board has a charging port. The upper part of the PCB board is fixedly connected to the circular plate, and the charging port extends outward beyond the circular plate. The upper part of the PCB board is covered with the coil, and a circular hole is provided in the center. A foam pad with an outline larger than 1 / 2 circle is embedded in the lower circular mounting groove, and the foam pad has a motherboard mounting notch. The outline of the motherboard mounting notch matches the outer outline of the PCB board. The circular plate is installed in the lower circular mounting groove, and the upper cover is installed in the upper circular mounting groove.

[0006] Furthermore, the upper cover is provided with a protruding post that presses into the circular hole of the circular plate, and the protruding post is truncated pyramidal in shape.

[0007] Furthermore, the outer edge of the outer annular surface is chamfered.

[0008] Furthermore, the charging port is a TYPE-C interface.

[0009] Furthermore, the PCB board has a stepped structure at the end away from the charging port, which facilitates insertion into the lower circular mounting slot.

[0010] The beneficial effects of this utility model are: the ultra-thin shell wireless charger of this utility model, through the design of the mounting groove inside the base, and the modular assembly structure design of the motherboard, foam pads, etc., is easy to assemble and has a compact structure, which makes the entire wireless charger an ultra-thin structure and easy to carry. Attached Figure Description

[0011] Figure 1 This is an exploded structural diagram of the present invention.

[0012] Figure 2 This is a structural diagram of the present utility model.

[0013] Figure 3 This is a structural diagram of the base of this utility model.

[0014] Figure 4 This is a structural diagram of the motherboard of this utility model.

[0015] In the diagram, 1 is the base, 2 is the top cover, 3 is the foam pad, 4 is the main board, 11 is the lower circular mounting slot, 12 is the upper circular mounting slot, 13 is the inner annular surface, 14 is the outer annular surface, 15 is the chamfer, 16 is the charging port fixing hole, 31 is the main board mounting notch, 41 is the PCB board, 42 is the circular board, 43 is the coil, 411 is the charging port, and 421 is the circular hole. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific examples and accompanying drawings.

[0017] like Figure 1-4A wireless charger with an ultra-thin casing includes a base 1, a top cover 2, and a main board 4. The base 1 is a circular cavity structure with an opening at the top and an internal receiving cavity. The lower part of the receiving cavity has a lower circular mounting groove 11, and the upper part has an upper circular mounting groove 12. The upper circular mounting groove 12 is coaxial with the lower circular mounting groove 11 and has an inner diameter larger than the lower circular mounting groove 11. The inner annular surface 13 between the upper circular mounting groove 12 and the lower circular mounting groove 11 is parallel to the bottom surface of the base 1. The uppermost outer annular surface 14 of the base 1 is also parallel to the bottom surface of the base 1. The outer edge of the outer annular surface 14 has a chamfer 15. The side wall of the lower circular mounting groove 11 has a charging port fixing hole 16 that extends to the outer side of the base 1. The main board 4 includes a lower PCB board 41, a middle circular plate 42, and an upper coil. 43. The vertical projection area of ​​the PCB board 41 is smaller than that of the circular board 42. One end of the PCB board 41 is provided with a TYPE-C charging port 411. The upper part of the PCB board 41 is fixedly connected to the circular board 42, and the charging port 411 extends outward beyond the circular board 42. The coil 43 is laid on the upper part of the PCB board 41, and a circular hole 421 is provided in the middle. A foam pad 3 with an outer contour larger than 1 / 2 circle is embedded in the lower circular mounting groove 11, and the foam pad 3 is provided with a motherboard mounting notch 31. The contour of the motherboard mounting notch 31 matches the outer contour of the PCB board 41. The circular board 42 is installed in the lower circular mounting groove 11, and the upper cover 2 is installed in the upper circular mounting groove 12. The upper cover 2 is provided with a protruding post that presses into the circular hole 421 of the circular board 42, and the protruding post is frustoconical.

[0018] The PCB board 41 has a stepped structure at one end away from the charging port 411, which facilitates insertion into the lower circular mounting slot 11.

[0019] The ultra-thin wireless charger of this utility model is manufactured by making a corresponding base 1, foam pad 3 and top cover 2 according to the size of the motherboard 4. All of them adopt a modular structure, which can quickly assemble the modules together. During assembly, align the motherboard mounting notch 31 of the foam pad 3 with the PCB board 41 of the motherboard 4, and then place them together into the lower circular mounting slot 11. When placing them into the lower circular mounting slot 11, one end of the charging port 411 should be tilted downwards and first placed into the charging port fixing hole 16. The end of the foam pad 3 away from the charging port 411 can be guided into the lower circular mounting slot 11 with a tool, so that the foam pad 3 has a certain squeezing force, which makes the position of the motherboard 4 more stable. Waterproof glue can be applied to the charging port 411 to block the gap of the charging port fixing hole 16 and improve the waterproof performance of the base 1. Finally, put on the top cover 2. Waterproof glue can be applied to the lower edge of the top cover 2. The top cover 2 is inserted into the upper circular mounting slot 12, with the lower edge close to the inner annular surface 13 and the upper edge flush with the outer annular surface 14. The top cover 2 and the upper circular mounting slot 12 can also be designed with a snap-fit ​​structure. The entire structure is relatively compact and the assembly process is easy to operate. For example, if the motherboard 4 is designed as a 15W charger, such as... Figure 2 The thickness of the entire wireless charger can be controlled to within 6 millimeters, making it easy to store and carry.

[0020] The above embodiments are merely preferred embodiments of the present utility model and are only used to explain the present utility model, not to limit the present utility model. Any changes, substitutions, combinations, simplifications, modifications, etc., made by those skilled in the art without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A wireless charger of an ultra-thin shell, comprising a base, an upper cover and a main board; characterized in that: The base is a circular cavity structure with an opening at the top and an internal receiving cavity. The lower part of the receiving cavity has a lower circular mounting groove, and the upper part has an upper circular mounting groove. The upper circular mounting groove is coaxial with the lower circular mounting groove and has a larger inner diameter than the lower circular mounting groove. The inner annular surface between the upper and lower circular mounting grooves is parallel to the bottom surface of the base, and the uppermost outer annular surface of the base is also parallel to the bottom surface of the base. The side wall of the lower circular mounting groove has a charging port fixing hole extending to the outer side of the base. The motherboard includes a lower PCB board, a middle circular board, and an upper... The coil is mounted on the PCB board, the vertical projection area of ​​which is smaller than that of the circular board. One end of the PCB board has a charging port. The upper part of the PCB board is fixedly connected to the circular board, and the charging port extends outward beyond the circular board. The coil is laid on the upper part of the PCB board, and a circular hole is provided in the middle. A foam pad with an outline larger than 1 / 2 circle is embedded in the lower circular mounting groove, and the foam pad has a motherboard mounting notch. The outline of the motherboard mounting notch matches the outer outline of the PCB board. The circular board is installed in the lower circular mounting groove, and the upper cover is installed in the upper circular mounting groove.

2. The wireless charger of the ultra-thin case according to claim 1, wherein: The upper cover is provided with a protruding post that presses into the circular hole of the circular plate, and the protruding post is truncated pyramidal in shape.

3. The wireless charger of the ultra-thin case according to claim 1, wherein: The outer edge of the outer annular surface is chamfered.

4. The wireless charger with an ultra-thin casing according to claim 1, characterized in that: The charging port is a TYPE-C interface.

5. The wireless charger with an ultra-thin casing according to claim 1, characterized in that: The PCB board has a stepped structure at the end away from the charging port.

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