Wireless charging coil structure

Abstract

The utility model relates to a kind of coils, specifically a kind of wireless charging coil structure, the wireless charging coil structure includes coil body, the coil body is installed on substrate, the one end of substrate away from coil body is provided with heat conduction structure, wherein heat conduction structure is connected with coil body contact, and heat conduction structure includes straight heat pipe and the first bent heat pipe and second bent heat pipe being set to the outside of straight heat pipe, wherein the first bent heat pipe is located between straight heat pipe and second bent heat pipe, the heat conduction structure further includes heat dispersion disc, and the heat dispersion disc is fixed on straight heat pipe, first bent heat pipe and second bent heat pipe.The wireless charging coil structure in work will heat of central position transfer to both sides, realize heat equalizing effect, reduce the heat dissipation pressure of coil body central position, ensure that coil body can also carry out good heat dissipation under long time working condition, ensure that the function of charging is not limited, delay the aging of battery.

Description

Technical Field

[0001] This utility model relates to a coil, specifically a wireless charging coil structure. Background Technology

[0002] The wireless charging coil is the core component of wireless charging technology, utilizing the principle of electromagnetic induction to achieve contactless power transfer. A wireless charging coil consists of a transmitter (located inside the charger) and a receiver (located inside the device such as a mobile phone), and energy transfer is achieved through electromagnetic induction. The transmitter coil generates an alternating magnetic field, and the receiver coil senses this magnetic field and converts it into current to charge the device's battery.

[0003] Existing wireless charging coils have complex structures and unreasonable designs. Because the coil continuously releases heat during operation, primarily in the central area while the peripheral areas generate less heat, current wireless charging coils lack a structure for even heat distribution. Most of the heat accumulates in the central area, causing heat buildup. This can lead to overheating during prolonged operation, accelerating battery aging. Furthermore, the lack of a structure to quickly transfer heat to the external environment limits charging functionality. Additionally, the limited heat dissipation area of ​​the wireless charging coil significantly impacts heat dissipation efficiency. Therefore, the inventors have improved the structure of the wireless charging coil. Utility Model Content

[0004] The purpose of this utility model is to provide a wireless charging coil structure. This wireless charging coil structure has the advantages of simple structure, reasonable design, and heat transfer from the center to both sides during operation, achieving a uniform heat distribution effect, reducing the heat dissipation pressure in the center of the coil body, ensuring good heat dissipation of the coil body even during long-term operation, ensuring unrestricted charging function, delaying battery aging, and solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wireless charging coil structure, comprising a coil body mounted on a substrate, and a heat-conducting structure disposed at one end of the substrate away from the coil body, wherein the heat-conducting structure is in contact with the coil body, and the heat-conducting structure comprises a direct heating pipe and a first bent heating pipe and a second bent heating pipe disposed outside the direct heating pipe, wherein the first bent heating pipe is located between the direct heating pipe and the second bent heating pipe, and the heat-conducting structure further comprises a heat dissipation disk, wherein the heat dissipation disk is fixed on the direct heating pipe, the first bent heating pipe and the second bent heating pipe.

[0006] Preferably, the direct heating pipe is arranged in a straight line, and the first and second bent heating pipes are both arranged in a U-shape. The first and second bent heating pipes are both arranged in an open manner, but at different angles, so that the heat can be dissipated in different directions, resulting in better heat dissipation. By cooperating with the direct heating pipe, the first bent heating pipe and the second bent heating pipe, the heat in the center of the coil body can be dissipated to the surrounding areas.

[0007] Preferably, the direct heating pipe, the first bent heating pipe, and the second bent heating pipe are all embedded on the surface of the substrate away from the coil body, and the direct heating pipe, the first bent heating pipe, and the second bent heating pipe all protrude from the surface of the substrate. The thickness of the protruding part is between 0.8mm and 1.5mm. The thickness of the direct heating pipe, the first bent heating pipe, and the second bent heating pipe is equal, and all of them are 6mm diameter heat pipes. After being flattened, they are fixed on the substrate and conduct heat to the coil body.

[0008] Preferably, the heat dispersion disk is arranged in a ring shape, and a protruding strip is fixed at the end of the heat dispersion disk away from the substrate.

[0009] Preferably, the protruding strips are provided in multiple rings, and the multiple rings of protruding strips are evenly distributed on the heat dissipation plate.

[0010] Preferably, the thickness of the protrusion is between 1 mm and 2 mm, and the material of the protrusion is the same as that of the heat dissipation plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a wireless charging coil structure, which includes a coil body mounted on a substrate. The overall structure is simple and reasonably designed. A heat-conducting structure is provided at the end of the substrate away from the coil body. The heat-conducting structure includes a direct heating pipe and a first bent heat pipe and a second bent heat pipe located outside the direct heating pipe. The first bent heat pipe is located between the direct heating pipe and the second bent heat pipe. The heat-conducting structure also includes a heat dissipation disk, which is fixed on the direct heating pipe, the first bent heat pipe, and the second bent heat pipe. The heat can be dissipated from the center of the coil body to both ends through the unidirectional heat pipe. After the first bent heat pipe and the second bent heat pipe conduct the heat, it is dispersed to both ends after the angle changes, ultimately transferring the heat in the center to both sides, achieving a uniform heat dissipation effect. This reduces the heat dissipation pressure in the center of the coil body, ensures that the coil body can dissipate heat well even under long-term working conditions, ensures that the charging function is not limited, delays battery aging, reduces the occurrence of overheating, and has strong practicality.

[0012] 2. The heat dissipation plate in this utility model is arranged in a ring shape, and a protruding strip is fixed at the end of the heat dissipation plate away from the substrate. The protruding strip is arranged in multiple rings and is evenly distributed on the heat dissipation plate. The heat transferred to the ends of the direct heat pipe, the first bent heat pipe and the second bent heat pipe will be directly transferred to the heat dissipation plate, and then dispersed through the protruding strip. The multiple protruding strips effectively increase the heat dissipation area, achieve a faster heat dissipation effect and improve the heat dissipation efficiency.

[0013] 3. The heat-conducting structure in this utility model is located on the side of the substrate away from the coil body. This side is usually used for heat dissipation and can be in direct contact with the external environment. Through the heat dissipation dispersion plate and protruding strip, heat is effectively conducted to the external environment, making the heat dissipation efficiency higher. At the same time, the heat-conducting structure is integrated with the substrate, which will not increase the overall thickness too much and has little impact on actual use, making it suitable for widespread use. Attached Figure Description

[0014] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model; Figure 2 This is the front view of the present utility model; Figure 3 This is a second schematic diagram of an embodiment of the present utility model; Figure 4 This is a side view of the present invention.

[0015] The reference numerals and names in the figure are as follows: 1. Substrate; 2. Coil body; 3. Heat-conducting structure; 31. Direct heat pipe; 32. First bend heat pipe; 33. Second bend heat pipe; 34. Heat dissipation disk; 35. Protrusion strip. Detailed Implementation

[0016] 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.

[0017] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0019] Please see Figure 1 One embodiment of this utility model is a wireless charging coil structure, which includes a coil body 2. The coil body 2 is mounted on a substrate 1. The mounting method is existing technology and will not be described in detail here.

[0020] Please see Figure 2 A heat-conducting structure 3 is provided at the end of the substrate 1 away from the coil body 2, wherein the heat-conducting structure 3 is in contact with the coil body 2.

[0021] Please see Figure 3The heat-conducting structure 3 includes a direct heating pipe 31 and a first bent heat pipe 32 and a second bent heat pipe 33 disposed outside the direct heating pipe 31. The first bent heat pipe 32 is located between the direct heating pipe 31 and the second bent heat pipe 33. The heat-conducting structure 3 also includes a heat dispersion disk 34, which is fixed to the direct heating pipe 31, the first bent heat pipe 32, and the second bent heat pipe 33. The direct heating pipe 31 is arranged in a straight line, while the first bent heat pipe 32 and the second bent heat pipe 33 are both arranged in a U-shape. Both the first bent heat pipe 32 and the second bent heat pipe 33 are open, but at different angles, allowing heat to dissipate in different directions, resulting in better heat dissipation. By using the direct heating pipe 31, the first bent heating pipe 32, and the second bent heating pipe 33 together, the heat in the center of the coil body 2 can be dissipated to the surrounding area. The direct heating pipe 31 can dissipate the heat in the center of the coil body 2 to both ends. The first bent heating pipe 32 and the second bent heating pipe 33 conduct the heat out and then disperse it to both ends after changing the angle. Finally, the heat in the center is transferred to both sides, achieving a uniform heat dissipation effect. This reduces the heat dissipation pressure in the center of the coil body 2, ensures that the coil body 2 can dissipate heat well even when working for a long time, ensures that the charging function is not limited, delays battery aging, and reduces the occurrence of overheating.

[0022] Please refer to it again. Figure 3 The heat dissipation disk 34 is arranged in a ring shape, and a protruding strip 35 is fixed at the end of the heat dissipation disk 34 away from the substrate 1. The protruding strip 35 has multiple rings, and the multiple rings of the protruding strip 35 are evenly distributed on the heat dissipation disk 34. The thickness of the protruding strip 35 is between 1mm and 2mm, and the material of the protruding strip 35 is the same as that of the heat dissipation disk 34. In this embodiment, both the heat dissipation disk 34 and the protruding strip 35 are made of copper. The heat transferred to the ends of the direct heat pipe 31, the first bent heat pipe 32 and the second bent heat pipe 33 will be directly transferred to the heat dissipation disk 34, and then dissipated through the several protruding strips 35. The several protruding strips 35 effectively increase the heat dissipation area and achieve a faster heat dissipation effect.

[0023] Please see Figure 4 The direct heating pipe 31, the first bent heating pipe 32, and the second bent heating pipe 33 are all embedded on the surface of the substrate 1 away from the coil body 2. The direct heating pipe 31, the first bent heating pipe 32, and the second bent heating pipe 33 all protrude from the surface of the substrate 1. The thickness of the protruding part is between 0.8 mm and 1.5 mm. The thickness of the direct heating pipe 31, the first bent heating pipe 32, and the second bent heating pipe 33 is equal. They are all 6 mm diameter heat pipes. After being flattened, they are fixed on the substrate 1 and conduct heat to the coil body 2.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wireless charging coil structure, comprising a coil body (2), characterized in that: The coil body (2) is mounted on the substrate (1). A heat-conducting structure (3) is provided at one end of the substrate (1) away from the coil body (2). The heat-conducting structure (3) is in contact with the coil body (2). The heat-conducting structure (3) includes a direct heating pipe (31) and a first bent heating pipe (32) and a second bent heating pipe (33) disposed outside the direct heating pipe (31). The first bent heating pipe (32) is located between the direct heating pipe (31) and the second bent heating pipe (33). The heat-conducting structure (3) also includes a heat dispersion disk (34). The heat dispersion disk (34) is fixed on the direct heating pipe (31), the first bent heating pipe (32) and the second bent heating pipe (33).

2. The wireless charging coil structure according to claim 1, characterized in that: The direct heat pipe (31) is arranged in a straight line, and the first bent heat pipe (32) and the second bent heat pipe (33) are both arranged in a U-shape.

3. The wireless charging coil structure according to claim 1, characterized in that: The direct heating pipe (31), the first bent heating pipe (32) and the second bent heating pipe (33) are all embedded on the surface of the substrate (1) away from the coil body (2), and the direct heating pipe (31), the first bent heating pipe (32) and the second bent heating pipe (33) all protrude from the surface of the substrate (1), with the thickness of the protruding part between 0.8 mm and 1.5 mm.

4. The wireless charging coil structure according to claim 1, characterized in that: The heat dispersion disk (34) is arranged in a ring shape, and a protruding strip (35) is fixed at one end of the heat dispersion disk (34) away from the substrate (1).

5. The wireless charging coil structure according to claim 4, characterized in that: The protruding strip (35) is provided in multiple rings, and the multiple rings of protruding strip (35) are evenly distributed on the heat dispersing plate (34).

6. The wireless charging coil structure according to claim 4, characterized in that: The thickness of the protruding strip (35) is between 1 mm and 2 mm, and the material of the protruding strip (35) is the same as that of the heat dispersing plate (34).

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