Wireless charger

Abstract

This utility model discloses a wireless charger, relating to the field of charging device technology. The wireless charger includes: a housing with an air duct having a first air outlet and a second air outlet; a fan disposed within the air duct, the fan driving airflow from the first air outlet to the second air outlet; a charging module disposed within the housing with one end extending into the air duct, wherein a device to be charged is placed on the charging module along a first direction; and a control board disposed within the air duct and electrically connected to the charging module, wherein the control board and the charging module are offset in a direction perpendicular to the first direction. The wireless charger provided by this utility model improves heat dissipation and charging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of charging device technology, and in particular to a wireless charger. Background Technology

[0002] With the continuous development of mobile terminal technology, wireless charging technology has gradually become one of the mainstream charging methods due to its convenience. Wireless charging achieves power transfer through electromagnetic induction between induction coils, completing the charging process without physical connection. However, the current wireless charging technology has low power conversion efficiency, resulting in a large amount of power being lost as heat during transmission. This causes the charger and charging device to heat up, affecting not only the charging speed but also potentially having adverse effects on device performance and safety. Utility Model Content

[0003] The main purpose of this invention is to provide a wireless charger that improves heat dissipation and charging efficiency.

[0004] To achieve the above objectives, this utility model proposes a wireless charger, comprising:

[0005] The outer casing is provided with an air duct, which has a first air outlet and a second air outlet;

[0006] A fan is provided inside the air duct, and the fan drives the airflow from the first air outlet to the second air outlet;

[0007] A charging module is disposed on the housing and one end extends into the air duct, wherein the device to be charged is placed on the charging module along a first direction; and

[0008] A control board is located inside the air duct and electrically connected to the charging module. In a direction perpendicular to the first direction, the control board and the charging module are staggered.

[0009] In one embodiment, the charging module is disposed at one end of the air duct near the first air outlet, and the control board is disposed at one end of the air duct near the second air outlet.

[0010] In one embodiment, the air duct extends in a direction perpendicular to the first direction, and the first air outlet and the second air outlet are located at opposite ends of the air duct.

[0011] In one embodiment, the fan has an air outlet that is arranged opposite to the charging module to deliver airflow toward the charging module.

[0012] In one embodiment, the wireless charger further includes a metal partition disposed on one end of the charging module facing the fan.

[0013] In one embodiment, the fan is configured as an axial fan, which is arranged parallel to the charging module.

[0014] In one embodiment, the first air vent and the second air vent are located on opposite sides of the outer casing.

[0015] In one embodiment, the outer shell includes an upper shell and a lower shell, which are interlocked and enclosed to form the air duct.

[0016] In the technical solution of this utility model, an air duct is provided on the shell of the wireless charger, and a fan is installed in the air duct to drive airflow to flow in and out of the shell. In addition, the charging module and control board on the shell extend into the air duct. The airflow can carry away the heat on the charging module and control board as it flows through them, thereby achieving heat dissipation for the wireless charger. The heat generated by the device to be charged during charging can be transferred to the charging module and finally transferred away by the airflow. This can reduce the temperature of the wireless charger and the device to be charged during charging, improve charging safety, and also help improve charging power and efficiency. Furthermore, the device to be charged is placed on the charging module along the first direction, while the control board is staggered from the charging module in a direction perpendicular to the first direction. This can reduce heat concentration and disperse heat, making it easier for heat to dissipate. It can also help to further control the temperature of the wireless charger and the device to be charged, further improving the safety and reliability of charging. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the wireless charger provided by this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the wireless charger provided by this utility model.

[0020] Explanation of icon numbers:

[0021] 10. Air duct; 20. First air vent; 30. Second air vent; 100. Outer shell; 110. Upper shell; 120. Lower shell; 200. Fan; 300. Charging module; 400. Control board; 500. Metal partition.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] To improve the safety and efficiency of wireless charging, this technical solution proposes a wireless charger, comprising: a housing 100 with an air duct 10 having a first air vent 20 and a second air vent 30; a fan 200 disposed within the air duct 10, the fan 200 driving airflow from the first air vent 20 to the second air vent 30; a charging module 300 disposed within the housing 100 with one end extending into the air duct 10, wherein the device to be charged is placed on the charging module 300 along a first direction; and a control board 400 disposed within the air duct 10 and electrically connected to the charging module 300, wherein the control board 400 and the charging module 300 are staggered in a direction perpendicular to the first direction.

[0027] In the technical solution of this utility model, an air duct 10 is provided on the outer shell 100 of the wireless charger, and a fan 200 is provided inside the air duct 10 to drive airflow to flow in and out of the outer shell 100. In addition, the charging module 300 and the control board 400 on the outer shell 100 both extend into the air duct 10. The airflow can carry away the heat from the charging module 300 and the control board 400 when it flows through them, thereby achieving heat dissipation for the wireless charger. Furthermore, the heat generated by the device to be charged during charging, placed on the charging module 300, can be transferred to the charging module 300 and ultimately dissipated. The airflow is distributed to reduce the temperature of the wireless charger and the device being charged during charging, improving charging safety and also increasing charging power and efficiency. In addition, the device being charged is placed on the charging module 300 along the first direction, while the control board 400 is staggered from the charging module 300 in a direction perpendicular to the first direction. This reduces heat concentration, disperses heat, and facilitates heat dissipation. It also helps to further control the temperature of the wireless charger and the device being charged, further improving charging safety and reliability.

[0028] Specifically, such as Figure 1 and Figure 2In one embodiment of this utility model, the wireless charger has a housing 100, which is the main structure of the wireless charger and has an internal air duct 10. Additionally, a first air vent 20 and a second air vent 30 are provided on the outer peripheral wall of the housing 100. The first air vent 20 and the second air vent 30 are located at different positions on the housing 100 and are respectively connected to both ends of the air duct 10. In use, the first air vent 20 serves as an air inlet to introduce external cold air; the second air vent 30 serves as an air outlet to discharge heated air. The shape and size of the air duct 10 can be adapted to the overall design of the wireless charger to ensure smooth airflow and coverage of key heat-generating components inside the housing 100. Furthermore, a fan 200 is provided inside the air duct 10. The type of fan 200 is not limited to axial or centrifugal. When the fan 200 is working, it drives airflow along the air duct 10, from the first air vent 20 to the second air vent 30. The speed of the fan 200 can be adjusted according to the load of the wireless charger. Dynamic heat dissipation is achieved through adjustment via control board 400. Additionally, a charging module 300 is mounted on the housing 100, which can be positioned on the top of the housing 100. The charging module 300 mainly consists of coils and is used to hold the device to be charged. The coils within the charging module 300 can wirelessly charge the device via electromagnetic induction. The bottom of the charging module 300 is exposed within the air duct 10. A control board 400, in PCB form, is located inside the air duct 10. The control board 400 is electrically connected to the charging module 300, providing power and monitoring the charging process. The control board 400 can be entirely housed within the air duct 10. Thus, when the wireless charger is operating, the fan 200 drives airflow from the first air vent 20 into the air duct 10, and the airflow passes through the charging module 300 and the control board 400. The airflow carries away the heat generated during operation and exhausts it to the external environment through the second vent 30. Simultaneously, the heat generated by the device being charged during charging is transferred through the charging module 300 to the air duct 10 and ultimately carried away by the airflow. This active cooling design effectively reduces the temperature of the wireless charger and the device being charged, avoiding safety hazards caused by overheating, and also helps improve charging power and efficiency. Furthermore, to disperse heat, the control board 400 is offset from the charging module 300 in a direction perpendicular to the first direction. For example, in this case, the first direction is along the path of the device being charged... Figure 2 The vertical placement of the control board 400 is as follows: Figure 2The control board 400 is staggered from the charging module 300 in the left and right directions, maintaining a certain distance from the charging module 300. This staggered design not only avoids heat concentration in a certain area and avoids the problem of local overheating, but also reduces the impact of heat on the device to be charged, which is common in traditional wireless chargers, thus improving the safety and efficiency of wireless charging. It also supports improving the reliability and charging efficiency of the device to be charged.

[0029] like Figure 2 In one embodiment of this utility model, the charging module 300 is disposed within the air duct 10 near the first air outlet 20, and the control board 400 is disposed within the air duct 10 near the second air outlet 30. With this arrangement, the airflow will first flow through the charging module 300 and then through the control board 400. This not only ensures that the airflow can fully absorb the heat of the charging module 300 and the control board 400, but also ensures that both the charging module 300 and the control board 400 have good heat dissipation effects, since the temperature of the control board 400 is generally higher than that of the charging module 300 in actual use. This airflow first flowing through the charging module 300 and then through the control board 400 can improve the overall heat dissipation effect of the wireless charger.

[0030] like Figure 2 In one embodiment of this utility model, the air duct 10 extends in a direction perpendicular to the first direction, and the first air outlet 20 and the second air outlet 30 are located at opposite ends of the air duct 10. In this solution, the airflow in the air duct 10 flows away from the charging module 300 in a direction perpendicular to the first direction, and finally blows out from the second air outlet 30 away from the charging module 300. In this way, after absorbing the heat of the charging module 300, the airflow flows away from the charging module 300, eliminating the risk of the heat in the airflow being transferred back to the charging module 300. This is beneficial to further ensure the heat dissipation effect of the charging module 300 and further improve the reliability and efficiency of charging.

[0031] like Figure 2 In another embodiment, the fan 200 has an air outlet that is arranged opposite to the charging module 300 to deliver airflow toward the charging module 300. With this arrangement, the airflow can be directly blown to the area around the charging module 300, increasing the flow velocity around the charging module 300, which is beneficial to improving the efficiency of heat exchange between the airflow and the charging module 300, thereby improving the heat dissipation efficiency of the charging module 300.

[0032] like Figure 2In another embodiment, the wireless charger further includes a metal partition 500, which is disposed on the end of the charging module 300 facing the fan 200. In this solution, the metal partition 500 can be made of iron or the like. The metal partition 500 can cover the end face of the wireless charger facing the fan 200. The shielding effect of the metal can eliminate the influence of the magnetic field of the magnet inside the charging module 300 on the fan 200, thereby improving the stability and reliability of the fan 200.

[0033] like Figure 2 In another embodiment, the fan 200 is configured as an axial fan, and the axial fan is arranged parallel to the charging module 300; in this solution, the charging module 300 has a flat design, and the charging module 300 is arranged along... Figure 2 The fan is horizontally positioned to the left and right, and the 200 also has a flat design, similarly along the left and right sides. Figure 2 The fan 200 is positioned horizontally in the left-right direction. This arrangement allows the fan 200 to be designed to be larger within a limited space, and the wireless charger to be designed to be thinner, which helps to reduce the overall size of the wireless charger.

[0034] like Figure 2 In one embodiment of this utility model, the first air vent 20 and the second air vent 30 are disposed on opposite sides of the outer casing 100. In this solution, the first air vent 20 is disposed on... Figure 2 The bottom of the housing 100 shown is positioned with the first air vent 20 directly opposite the charging module 300, and the second air vent 30 is located at... Figure 2 The top of the housing 100 shown is located on one side of the charging module 300. The design of the first air vent 20 and the second air vent 30 on opposite sides of the housing 100 in this solution allows the first air vent 20 to be as far away from the second air vent 30 as possible, ensuring that the air temperature drawn in by the first air vent 20 is low enough, and also preventing the hot air exhausted by the second air vent 30 from being re-drawn into the first air vent 20, thus ensuring the heat dissipation effect.

[0035] like Figure 2In one embodiment of this utility model, the outer shell 100 includes an upper shell 110 and a lower shell 120. The upper shell 110 and the lower shell 120 are interlocked and enclosed to form an air duct 10. In this solution, the outer shell 100 is composed of two parts: the upper shell 110 and the lower shell 120. The charging module 300 is disposed on the upper shell 110. The upper shell 110 is provided with a bottom opening groove on the side facing the lower shell 120, and the lower shell 120 is provided with a top opening groove on the side facing the upper shell 110. After the upper shell 110 and the lower shell 120 are interlocked, the two grooves combine to form the structure of the air duct 10. In addition, the control board 400 can be disposed between the upper shell 110 and the lower shell 120 and is clamped and fixed by the upper shell 110 and the lower shell 120. The two-part combination of the outer shell 100 can facilitate the assembly of other components on the outer shell 100 and also reduce the processing difficulty of the outer shell 100.

[0036] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wireless charger, characterized in that, include: The outer casing is provided with an air duct, which has a first air outlet and a second air outlet; A fan is provided inside the air duct, and the fan drives the airflow from the first air outlet to the second air outlet; A charging module is disposed on the housing and one end extends into the air duct, wherein the device to be charged is placed on the charging module along a first direction; and A control board is located inside the air duct and electrically connected to the charging module. In a direction perpendicular to the first direction, the control board and the charging module are staggered.

2. The wireless charger as described in claim 1, characterized in that, The charging module is located at one end of the air duct near the first air outlet, and the control board is located at one end of the air duct near the second air outlet.

3. The wireless charger as described in claim 2, characterized in that, The air duct extends in a direction perpendicular to the first direction, and the first air outlet and the second air outlet are located at opposite ends of the air duct.

4. The wireless charger as described in claim 2, characterized in that, The fan has an air outlet, which is arranged opposite to the charging module to deliver airflow toward the charging module.

5. The wireless charger as described in claim 4, characterized in that, The wireless charger also includes a metal partition, which is disposed on the end of the charging module facing the fan.

6. The wireless charger as described in claim 4, characterized in that, The fan is configured as an axial fan, and the axial fan is arranged parallel to the charging module.

7. The wireless charger as described in claim 1, characterized in that, The first air vent and the second air vent are located on opposite sides of the outer casing.

8. The wireless charger as described in claim 1, characterized in that, The outer shell includes an upper shell and a lower shell, which are interlocked and combined to form the air duct.

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