Magnetic wireless charging device

Abstract

The utility model provides a magnetic attraction wireless charging device. The magnetic attraction wireless charging device comprises a magnetic attraction charging assembly, a heat dissipation base and a heat conduction piece. The magnetic attraction charging assembly is used for charging the to-be-charged equipment with electric energy. The heat dissipation base is used as a main heat dissipation part of the magnetic wireless charging device, and the heat dissipation base comprises a mounting groove and a heat dissipation cavity. The mounting groove is used for fixing the magnetic attraction charging assembly, the heat dissipation cavities are formed in the two sides of the mounting groove, the heat dissipation areas of the heat dissipation base are increased through the heat dissipation cavities, and the heat dissipation capacity of the heat dissipation base is improved. The heat conduction piece is arranged between the magnetic attraction charging assembly and the heat dissipation base, heat generated in the working process of the magnetic attraction charging assembly is rapidly conducted to the heat conduction piece through the efficient heat conduction performance of the heat conduction piece, then the heat is further conducted to the heat dissipation base, and finally the heat is dissipated to the external environment through the heat dissipation cavity of the heat dissipation base. The magnetic attraction wireless charging device has better heat dissipation performance, and the technical problem that the heat dissipation effect is poor due to a traditional passive heat dissipation mode is effectively solved.

Description

Technical Field

[0001] The present application belongs to the technical field of wireless charging equipment, and more specifically, to a magnetic wireless charging device. Background Art

[0002] With the rapid development of wireless charging technology, wireless charging has been widely welcomed for its advantages of convenient charging and low risk of damaging the charging interface. However, wireless charging devices usually achieve power conversion through magnetic coupling, which has a lower power conversion efficiency than wired charging because part of the power will be converted into heat energy.

[0003] Wireless chargers on the market are mainly divided into active cooling and passive cooling. Active cooling chargers dissipate heat through cooling measures such as built-in fans, but they are large in size and are mostly fixed devices. Passive cooling chargers are favored by users for their lightness and portability and the ability to be picked up and used while charging. However, due to the lack of effective heat dissipation measures, the temperature rises quickly during charging, affecting the charging speed and may have an adverse effect on the life of the mobile phone lithium battery.

[0004] Take a wireless charger with a rated output power of 15W as an example. Even if its power conversion efficiency is as high as 80%, its waste heat will reach 3.75W. According to the laws of thermodynamics, the surface temperature of the wireless charger will rise rapidly, resulting in a lower charging speed and a poor user experience. Therefore, how to effectively reduce the operating temperature of the wireless charger while keeping it light and portable and able to be picked up and used during charging has become an urgent problem to be solved in current wireless charging technology. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a magnetic wireless charging device to solve the technical problem of poor heat dissipation effect in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] A magnetic wireless charging device is provided, comprising:

[0008] Magnetic charging component;

[0009] The heat dissipation base comprises a mounting slot and a heat dissipation cavity, wherein the magnetic charging assembly is connected to the mounting slot, and the heat dissipation cavity is arranged on both sides of the mounting slot;

[0010] A heat conductive member is disposed between the magnetic charging component and the heat dissipation base, wherein at least one side of the heat conductive member contacts the magnetic charging component, and at least another side of the heat conductive member contacts the heat dissipation base.

[0011] As a further improvement of the above technical solution:

[0012] Optionally, the heat dissipation base includes a base body and a panel, the mounting groove is arranged on the base body, and the panel has a through hole, and the through hole is arranged facing the mounting groove.

[0013] Optionally, the base body and the panel enclose the heat dissipation cavity, and the heat dissipation cavity is symmetrically arranged on both sides of the installation groove.

[0014] Optionally, the cavity wall of the heat dissipation cavity has a plurality of heat dissipation holes for communicating with the outside.

[0015] Optionally, the base body includes a back plate, side plates opposite to each other in pairs, and end plates opposite to each other in pairs, and the back plate includes arc-shaped connecting parts arranged on two opposite sides, and the arc-shaped connecting parts are connected to the side plates or the end plates.

[0016] Optionally, the base body further includes reinforcing ribs, wherein the reinforcing ribs and the back plate form the mounting groove, and the reinforcing ribs are used to be looped around the periphery of the magnetic charging assembly.

[0017] Optionally, the side panels and / or the end panels are further provided with threading holes.

[0018] Optionally, a heat conducting component installation groove is further provided at the bottom of the installation groove, and the heat conducting component is installed in the heat conducting component installation groove.

[0019] Optionally, the heat conducting element is a heat pipe.

[0020] Optionally, the heat dissipation base is made of aluminum alloy.

[0021] The beneficial effects of the magnetic wireless charging device provided by the present application are:

[0022] The present application provides a magnetic wireless charging device, including a magnetic charging component, a heat dissipation base and a heat conductive member. The magnetic charging component is both the main functional component of the magnetic wireless charging device and the heat generating component of the magnetic wireless charging device, which is used to charge electric energy into the device to be charged.

[0023] As the main heat dissipation component of the magnetic wireless charging device, the heat dissipation base undertakes the key heat dissipation task. The heat dissipation base includes a mounting groove and a heat dissipation cavity. The mounting groove is used to fix the magnetic charging component to ensure its stability and safety during operation. The heat dissipation cavity is arranged on both sides of the mounting groove, and the heat dissipation cavity helps to increase the heat dissipation area of ​​the heat dissipation base and improve the heat dissipation capacity of the heat dissipation base. Since the heat generation position and heat generation amount on the magnetic charging component are not balanced, directly conducting the heat on the magnetic charging component to the heat dissipation base will lead to low heat conduction speed and low heat dissipation efficiency. Therefore, by setting a heat conductive member, which is arranged between the magnetic charging component and the heat dissipation base, the heat generated by the magnetic charging component during operation is quickly conducted to the heat conductive member through its efficient heat conduction performance. At the same time, the other side of the heat conductive member is in close contact with the heat dissipation base, and the heat is further conducted to the heat dissipation base, and finally dissipated to the external environment through the heat dissipation cavity of the heat dissipation base.

[0024] The magnetic wireless charging device of the present application improves the heat dissipation performance of the magnetic wireless charging device by optimizing the heat dissipation design, and effectively solves the technical problem of poor heat dissipation effect caused by traditional passive heat dissipation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the exploded structure of the magnetic wireless charging device provided in this application;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of the magnetic wireless charging device provided in this application;

[0028] Figure 3 A schematic diagram of the rear structure of the magnetic wireless charging device provided in this application;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of the base body of the magnetic wireless charging device provided in this application;

[0030] Figure 5 A schematic diagram of the three-dimensional structure of the panel of the magnetic wireless charging device provided in this application.

[0031] Among them, the reference numerals in the figure are:

[0032] 1. Magnetic charging assembly; 2. Heat dissipation base;

[0033] 21. Mounting slot; 22. Heat dissipation cavity;

[0034] 221, heat dissipation hole; 23, base body;

[0035] 231, back panel; 232, side panel;

[0036] 233, end plate; 234, reinforcement rib;

[0037] 235, threading hole; 24, panel;

[0038] 241, through hole; 25, heat conducting member mounting groove;

[0039] 3. Heat conducting parts. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In order to effectively solve the technical problem of poor heat dissipation effect when traditional magnetic wireless charging devices use passive heat dissipation. Figure 1 and Figure 2As shown, the present application provides a magnetic wireless charging device, including a magnetic charging component 1, a heat dissipation base 2 and a heat conductor 3.

[0045] The magnetic charging component 1 is both the main functional component of the magnetic wireless charging device and the heat-generating component of the magnetic wireless charging device, which is used to charge electrical energy into the device to be charged. The magnetic charging component 1 includes multiple components such as a shell, a charging coil and a magnet. The shell provides protection for the internal components. The charging coil is responsible for realizing the wireless charging function. It can convert electrical energy into a magnetic field, thereby providing power to devices that support wireless charging. The magnet ensures a stable connection between the device to be charged and the magnetic charging component 1 through its strong adsorption force, thereby ensuring the stability and safety of the charging process. The magnetic charging component 1 of the present application can have a variety of physical forms, such as common circular and square forms. In order to more intuitively demonstrate its characteristics, this time we will take a circular magnetic charger as an example.

[0046] As the main heat dissipation component of the magnetic wireless charging device, the heat dissipation base 2 undertakes the key heat dissipation task. The heat dissipation base 2 includes a mounting groove 21 and a heat dissipation cavity 22. The mounting groove 21 is used to fix the magnetic charging component 1 to ensure its stability and safety during operation. The heat dissipation cavity 22 is arranged on both sides of the mounting groove 21. The heat dissipation cavity 22 helps to increase the heat dissipation area of ​​the heat dissipation base 2 and improve the heat dissipation capacity of the heat dissipation base 2.

[0047] Since the heat generation position and heat generation amount on the magnetic charging component 1 are not balanced, directly transferring the heat from the magnetic charging component 1 to the heat dissipation base 2 will result in low heat conduction speed and low heat dissipation efficiency. Therefore, by setting a heat conductive member 3, which is arranged between the magnetic charging component 1 and the heat dissipation base 2, the heat generated by the magnetic charging component 1 during operation is quickly transferred to the heat conductive member 3 through its efficient heat conductive performance. At the same time, the other side of the heat conductive member 3 is in close contact with the heat dissipation base 2, further transferring the heat to the heat dissipation base 2, and finally dissipating the heat to the external environment through the heat dissipation cavity 22 of the heat dissipation base 2.

[0048] The magnetic wireless charging device of the present application improves the heat dissipation performance of the magnetic wireless charging device by optimizing the heat dissipation design, and has a better heat dissipation effect; it effectively solves the technical problem of poor heat dissipation effect caused by traditional passive heat dissipation methods.

[0049] like Figure 4 and Figure 5As shown, in one embodiment of the present application, the heat dissipation base 2 includes a base body 23 and a panel 24. The base body 23 serves as the main part of the heat dissipation base 2, and the mounting groove 21 is provided on the base body 23. The through hole 241 on the panel 24 is arranged facing the mounting groove 21, so as to avoid the panel 24 interfering with the magnetic charging component 1 during the charging process, thereby ensuring the smooth charging process. In order to ensure that the charging device is not easy to shake during charging, the charging surface of the magnetic charging component 1 should be flush with the surface of the panel 24.

[0050] like Figure 4 and Figure 5 As shown, in one embodiment of the present application, the base body 23 and the panel 24 enclose a heat dissipation cavity 22, and the heat dissipation cavity 22 is symmetrically arranged on both sides of the mounting slot 21. When the magnetic charging assembly 1 is working, the heat generated by it can be quickly transferred to the heat dissipation cavity 22 on both sides through the base body 23, and the heat is dispersed into the air through the heat dissipation cavity 22 to prevent heat accumulation in a certain area, thereby ensuring stable operation and efficient heat dissipation of the device.

[0051] like Figure 3 and Figure 4 As shown, in one embodiment of the present application, the cavity wall of the heat dissipation cavity 22 has a plurality of heat dissipation holes 221 for communicating with the outside world, ensuring smooth air circulation with the outside world. When the magnetic wireless charging device is working, the hot air generated in the heat dissipation cavity 22 can be naturally discharged from the heat dissipation holes 221, and the cold air from the outside can be naturally sucked into the heat dissipation cavity 22 through these heat dissipation holes. This natural air convection cycle effectively promotes the dissipation of heat, thereby reducing the temperature of the magnetic wireless charging device.

[0052] like Figure 4 As shown, in one embodiment of the present application, the base body 23 includes a back plate 231, side plates 232 opposite to each other, and end plates 233 opposite to each other. The back plate 231 includes an arc-shaped connecting portion arranged on two opposite sides, and the arc-shaped connecting portion is connected to the side plate 232 or the end plate 233.

[0053] Among them, the arc-shaped connecting part follows the principles of ergonomics and achieves the purpose of fitting the natural curvature of the palm through a smooth curved surface design, so that the user can improve the comfort of using the magnetic wireless charging device when holding the magnetic wireless charging device.

[0054] like Figure 4 As shown, in one embodiment of the present application, the base body 23 also includes a reinforcing rib 234 , and the reinforcing rib 234 and the back plate 231 form an installation groove 21 , and the reinforcing rib 234 is used to be looped around the outer periphery of the magnetic charging component 1 .

[0055] The reinforcing ribs 234 can enhance the structural stability of the base body 23 and improve the impact resistance of the base body 23. In addition, the reinforcing ribs 234 also increase the contact area with the magnetic charging assembly 1, which not only makes the connection between the base body 23 and the magnetic charging assembly 1 more stable and less prone to loosening, but also improves the heat conduction efficiency. The heat generated by the magnetic charging assembly 1 during operation can be transferred to other parts of the base body 23 through the reinforcing ribs 234, and then dissipated, avoiding heat accumulation and further ensuring the safety and stability of the charging process.

[0056] like Figure 4 As shown, in one embodiment of the present application, the side plate 232 and / or the end plate 233 are further provided with a threading hole 235, so that the power cord of the magnetic charging assembly 1 can pass through the side plate 232 or the end plate 233. When both the side plate 232 and the end plate 233 have threading holes 235, the power cord of the magnetic charging assembly 1 can select the most suitable threading hole 235 to pass through according to actual needs.

[0057] like Figure 4 As shown, in one embodiment of the present application, a heat conductive component mounting groove 25 is further provided at the bottom of the mounting groove 21, and the heat conductive component 3 is installed in the heat conductive component mounting groove 25, which not only ensures the stability of the heat conductive component 3 and effectively prevents possible loosening thereof, but also significantly increases the contact area between the heat conductive component 3 and the base body 23, so that heat can be transferred to the base body 23 faster.

[0058] In one embodiment of the present application, the heat conducting member 3 is specifically a heat pipe. A heat pipe is a heat transfer element with extremely strong thermal conductivity. It makes full use of the heat conduction principle and the rapid heat transfer property of the phase change medium. Through the efficient thermal conductivity of the heat pipe, the heat generated by the magnetic charging assembly 1 can be quickly transferred to the heat dissipation base 2. The thermal conductivity of the heat pipe exceeds that of any known metal.

[0059] In one embodiment of the present application, the heat dissipation base 2 is specifically made of aluminum alloy. Aluminum alloy has excellent thermal conductivity and can quickly transfer heat from the heat source to the external environment, thereby ensuring that the heat dissipation base 2 can effectively reduce the operating temperature of the device.

[0060] Secondly, the density of aluminum alloy is relatively small, which makes the heat dissipation base 2 light while maintaining sufficient strength, and is easy to hold and carry. In addition, aluminum alloy also has high strength, so that the heat dissipation base 2 can resist external impact and vibration and maintain long-term stability. In other embodiments, the heat dissipation base 2 can also be made of other lightweight, hard, and good thermal conductive materials.

[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic wireless charging device, characterized in that: include: Magnetic charging component (1); A heat dissipation base (2) comprising a mounting groove (21) and a heat dissipation cavity (22), wherein the magnetic charging component (1) is connected to the mounting groove (21), and the heat dissipation cavity (22) is arranged on both sides of the mounting groove (21); The heat conductive member (3) is arranged between the magnetic charging component (1) and the heat dissipation base (2), at least one side of the heat conductive member (3) is in contact with the magnetic charging component (1), and at least the other side of the heat conductive member (3) is in contact with the heat dissipation base (2).

2. The magnetic wireless charging device according to claim 1, characterized in that: The heat dissipation base (2) comprises a base body (23) and a panel (24); the mounting groove (21) is arranged on the base body (23); the panel (24) has a through hole (241); and the through hole (241) is arranged facing the mounting groove (21).

3. The magnetic wireless charging device according to claim 2, characterized in that: The base body (23) and the panel (24) enclose the heat dissipation cavity (22), and the heat dissipation cavity (22) is symmetrically arranged on both sides of the installation groove (21).

4. The magnetic wireless charging device according to claim 1, characterized in that: The cavity wall of the heat dissipation cavity (22) is provided with a plurality of heat dissipation holes (221) for communicating with the outside world.

5. The magnetic wireless charging device according to claim 2, characterized in that: The base body (23) comprises a back plate (231), two opposite side plates (232) and two opposite end plates (233), wherein the back plate (231) comprises arc-shaped connecting portions arranged on two opposite sides, and the arc-shaped connecting portions are connected to the side plates (232) or the end plates (233).

6. The magnetic wireless charging device according to claim 5, characterized in that: The base body (23) further comprises a reinforcing rib (234), wherein the reinforcing rib (234) and the back plate (231) form the mounting groove (21), and the reinforcing rib (234) is used to be looped around the outer periphery of the magnetic charging assembly (1).

7. The magnetic wireless charging device according to claim 5, characterized in that: The side plate (232) and / or the end plate (233) are also provided with threading holes (235).

8. The magnetic wireless charging device according to any one of claims 1 to 7, characterized in that: A heat conducting component installation groove (25) is also provided at the bottom of the installation groove (21), and the heat conducting component (3) is installed in the heat conducting component installation groove (25).

9. The magnetic wireless charging device according to any one of claims 1 to 7, characterized in that: The heat conducting member (3) is a heat pipe.

10. The magnetic wireless charging device according to any one of claims 1 to 7, characterized in that: The heat dissipation base (2) is made of aluminum alloy.

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