Wireless charger

By employing a detachable upper and lower shell structure in the wireless charger, and incorporating a ventilated structure and cooling fan between them, the problem of severe overheating in wireless chargers is solved, achieving effective heat dissipation and improving the safety and lifespan of the device.

CN223942447UActive Publication Date: 2026-02-24SHENZHEN MEISHUNHE ELECTRONIC LTD
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Patent Information

Application Number
CN202423224904.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-02-24
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Wireless chargers generate significant heat during operation due to their low electromagnetic induction conversion rate, which affects the lifespan of the device.

Method used

A wireless charger was designed with a detachable upper and lower shell structure, and a ventilated structure and cooling fan were set between the upper and lower shells to enhance heat dissipation.

Benefits of technology

The design of the breathable structure and cooling fan effectively reduces the temperature of the wireless charger and device, improving safety and device lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wireless charger, and relates to the technical field of wireless chargers. Comprising an upper shell and a lower shell which are detachably connected, a clamping groove is formed in the top of the upper shell, a clamping block clamped with the clamping groove in a matched mode is formed on the lower shell, a PCB is installed between the upper shell and the lower shell, a charging coil module is electrically connected to the upper portion of the PCB, ventilation is conducted between the upper shell and the lower shell through the clamping groove, the bottom of the upper shell is open, and the inner wall of the upper shell is hollow. The lower shell is contained in an inner cavity of the upper shell, the PCB is lapped on the lower shell, the clamping grooves are distributed in a rectangular shape along the periphery of the top of the upper shell, the number of the clamping grooves is at least four, and the number of the clamping blocks is the same as that of the clamping grooves. According to the wireless charger, detachable connection between the upper shell and the lower shell can be facilitated, a corresponding heat dissipation structure is additionally arranged between the upper shell and the lower shell, and ventilation and heat dissipation of the wireless charger in the using process are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of wireless charger technology, specifically a wireless charger. Background Technology

[0002] A wireless charger is a device that uses the principle of electromagnetic induction for charging, similar to a transformer. It involves placing a coil at both the transmitting and receiving ends. The transmitting coil emits electromagnetic signals under the influence of electricity, while the receiving coil receives these signals and converts them into electrical current, thus achieving wireless charging. Wireless charging technology is a special power supply method that eliminates the need for power cords. It relies on electromagnetic waves to propagate and convert electromagnetic energy into electrical energy, ultimately achieving wireless charging.

[0003] Currently, wireless chargers generate internal heat during operation due to their low electromagnetic induction conversion rate. This causes both the wireless charger and the device being charged to overheat, potentially damaging the phone's battery and the wireless charger's induction coil, thus affecting subsequent use. Utility Model Content

[0004] This invention provides a wireless charger to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wireless charger, comprising an upper shell and a lower shell, which are detachably connected. The top of the upper shell has a slot, and the lower shell has a locking block that matches and engages with the slot. A PCB board is installed between the upper shell and the lower shell, and a charging coil module is electrically connected to the top of the PCB board. The upper shell and the lower shell are ventilated through the slot.

[0006] Furthermore, the bottom of the upper shell is open and the inner wall is hollow, the lower shell is housed in the inner cavity of the upper shell, and the PCB board is placed on the lower shell.

[0007] Furthermore, the card slots are rectangularly distributed around the top perimeter of the upper shell, and the number of card slots is at least four, while the number of card blocks is the same as the number of card slots.

[0008] Furthermore, a groove is formed on the side wall of the lower shell, and the locking block is L-shaped and disposed on the top inner wall of the groove.

[0009] Furthermore, the outer wall of the PCB board is provided with a clearance groove for the clearance block.

[0010] Furthermore, ventilation slots are provided on both sides of the bottom of the upper shell.

[0011] Furthermore, the bottom inner wall of the lower shell is provided with a ventilation groove.

[0012] Furthermore, a cooling fan is installed in the portion of the lower shell's inner cavity located below the PCB board.

[0013] Furthermore, the bottom inner wall of the lower shell is provided with a support strip for the PCB board.

[0014] Furthermore, the support strip has a square ring shape, with gaps between adjacent support strips.

[0015] Compared with the prior art, the present invention provides a wireless charger with the following advantages: the wireless charger can facilitate the disassembly and connection between the upper and lower shells, and also adds a corresponding heat dissipation structure between the upper and lower shells, which is beneficial to the ventilation and heat dissipation of the wireless charger during use. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the planar structure of the upper shell of this utility model.

[0019] In the diagram: 1. Upper shell; 2. Lower shell; 3. PCB board; 4. Charging coil module; 5. Card slot; 6. Groove; 7. Card block; 8. Clearance slot; 9. Support bar; 10. Cooling fan; 11. Ventilation slot; 12. Ventilation slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model discloses a wireless charger, including an upper shell 1 and a lower shell 2, which are detachably connected. The top of the upper shell 1 is provided with a slot 5, and the lower shell 2 is provided with a locking block 7 that matches and engages with the slot 5. A PCB board 3 is installed between the upper shell 1 and the lower shell 2, and a charging coil module 4 is electrically connected to the top of the PCB board 3. The upper shell 1 and the lower shell 2 are ventilated through the slot 5.

[0022] The bottom of the upper shell 1 is open and the inner wall is hollow. The lower shell 2 is housed in the inner cavity of the upper shell 1, and the PCB board 3 is placed on the lower shell 2.

[0023] Specifically, the card slots 5 are distributed in a rectangular pattern around the top of the upper shell 1, and there are at least four card slots 5. The number of card blocks 7 is the same as the number of card slots 5.

[0024] A groove 6 is formed on the side wall of the lower shell 2, and the locking block 7 is L-shaped and located on the top inner wall of the groove 6.

[0025] The outer wall of the PCB board 3 has a clearance groove 8 for the clearance block 7.

[0026] In this embodiment, the PCB board 3 is supported by the lower shell 2. The locking block 7 on the lower shell 2 is L-shaped and can pass through the locking slot 5 on the upper shell 1 to realize the connection between the upper shell 1 and the lower shell 2, and limit the PCB board 3.

[0027] The slot 5 is a through slot. Because the card block 7 cannot completely block the slot 5, the inner cavity of the upper shell 1 can achieve ventilation through the slot 5. The clearance slot 8 on the PCB board 3 allows the space inside the lower shell 2 to connect with the space inside the upper shell 1.

[0028] Specifically, ventilation slots 12 are provided on both sides of the bottom of the upper shell 1.

[0029] In this embodiment, the lower shell 2 is completely housed within the inner cavity of the upper shell 1, and the ventilation slot 12 allows the bottom of the upper shell 1 to form a space through which air can flow, so that the bottom of the lower shell 2 can contact the air for heat dissipation.

[0030] Specifically, the bottom inner wall of the lower shell 2 is provided with a ventilation groove 11.

[0031] In this embodiment, the ventilation groove 11 is provided to facilitate heat dissipation of electrical components inside the lower shell 2.

[0032] Specifically, a cooling fan 10 is installed in the part of the inner cavity of the lower shell 2 located below the PCB board 3.

[0033] In this embodiment, the cooling fan 10 can promote the exchange speed of air between the inner cavity of the lower shell 2 and the upper shell 1 and the outside air, thereby improving the heat dissipation rate.

[0034] Specifically, the bottom inner wall of the lower shell 2 is provided with a support strip 9 for the PCB board 3.

[0035] The support bar 9 is in the form of a square ring, with gaps between adjacent support bars 9.

[0036] In this embodiment, the support strips 9 ensure the stability of the PCB board 3 during installation, while the gaps between the support strips 9 allow air to circulate, ensuring that a closed space is not formed between the support strips 9, the lower shell 2, and the PCB board 3.

[0037] In summary, this wireless charger not only facilitates the disassembly and connection between the upper shell 1 and the lower shell 2, but also incorporates a corresponding heat dissipation structure between the upper shell 1 and the lower shell 2, which is beneficial for ventilation and heat dissipation during use.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless charger, comprising an upper shell (1) and a lower shell (2), characterized in that: The upper shell (1) and the lower shell (2) are detachably connected. The top of the upper shell (1) is provided with a slot (5). The lower shell (2) is provided with a locking block (7) that matches and engages with the slot (5). A PCB board (3) is installed between the upper shell (1) and the lower shell (2). A charging coil module (4) is electrically connected above the PCB board (3). The upper shell (1) and the lower shell (2) are ventilated through the slot (5).

2. A wireless charger according to claim 1, characterized in that: The bottom of the upper shell (1) is open and the inner wall is hollow. The lower shell (2) is housed in the inner cavity of the upper shell (1). The PCB board (3) rests on the lower shell (2).

3. A wireless charger according to claim 2, characterized in that: The card slots (5) are distributed in a rectangular shape around the top of the upper shell (1), and there are at least four card slots (5). The number of card blocks (7) is the same as the number of card slots (5).

4. A wireless charger according to claim 3, characterized in that: A groove (6) is formed on the side wall of the lower shell (2), and the locking block (7) is L-shaped and is located on the top inner wall of the groove (6).

5. A wireless charger according to claim 4, characterized in that: The outer wall of the PCB board (3) is provided with a clearance groove (8) for the clearance block (7).

6. A wireless charger according to claim 1, characterized in that: Ventilation slots (12) are provided on both sides of the bottom of the upper shell (1).

7. A wireless charger according to claim 6, characterized in that: The bottom inner wall of the lower shell (2) is provided with a ventilation groove (11).

8. A wireless charger according to claim 7, characterized in that: A cooling fan (10) is installed in the part of the inner cavity of the lower shell (2) located below the PCB board (3).

9. A wireless charger according to claim 7, characterized in that: The bottom inner wall of the lower shell (2) is provided with a support strip (9) for supporting the PCB board (3).

10. A wireless charger according to claim 9, characterized in that: The support bar (9) is a square ring-shaped part, and there is a gap between adjacent support bars (9).