Wireless charging equipment

Abstract

The utility model relates to wireless charging equipment. The wireless charging device comprises a shell, a coil assembly, an electric control module and a heat conduction piece, the coil assembly, the electric control module and the heat conduction piece are contained in the shell, the coil assembly is arranged close to the shell, and the heat conduction piece is clamped between the coil assembly and the electric control module. The wireless charging equipment provided by the utility model has the advantages of high charging efficiency and good heat dissipation effect.

Description

Technical Field

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

[0002] Wireless charging power banks are gaining popularity due to their convenience. A power bank typically consists of a casing and a charging coil, cooling plate, and battery housed within it. To ensure timely and rapid heat dissipation for both the electronic device and the power bank itself during charging, existing power banks usually place the cooling plate between the electronic device and the charging coil. However, this structure creates an obstruction between the cooling plate and the electronic device, affecting charging efficiency. For example, the cooling plate makes it difficult for magnets located outside the charging coil to attract the electronic device, failing to meet market demands. Simultaneously, the heat generated by the charging coil is directly transferred to the battery or other electronic devices, raising their temperature and reducing charging efficiency. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a wireless charging device that has the advantages of high charging efficiency and good heat dissipation.

[0004] A wireless charging device includes: a housing and a coil assembly, an electronic control module, and a heat-conducting element disposed within the housing, wherein the coil assembly is disposed close to the housing and the heat-conducting element is sandwiched between the coil assembly and the electronic control module.

[0005] The wireless charging device described in this utility model adjusts the position of the heat-conducting component, so that the structure can not only ensure the cooling effect of the coil assembly and the electronic control module, maintain the safety and performance of the wireless charging device, but also enable the electronic device to be stably attracted to the coil assembly.

[0006] Furthermore, the heat-conducting component includes a first heat exchange section and a second heat exchange section connected together. The coil assembly is disposed between the first heat exchange section and the outer casing. Along the direction from the first heat exchange section toward the coil assembly, the second heat exchange section is disposed closer to the outer casing than the first heat exchange section. This structure allows the heat-conducting component to remain close to the electronic device even after its position is adjusted, thereby achieving efficient cooling of the electronic device and ensuring charging efficiency.

[0007] Furthermore, in the height direction of the wireless charging device, the first heat exchange section and the second heat exchange section have a height difference, and the heat-conducting component also includes a connecting section, through which the first heat exchange section and the second heat exchange section are connected. This makes the layout more reasonable and facilitates cooling and charging of electronic devices.

[0008] Furthermore, the connecting portion is inclined, with the inclination direction being downward from the second heat exchange portion towards the first heat exchange portion. The first heat exchange portion and the second heat exchange portion form an obtuse angle through the connecting portion. This structure makes the layout more reasonable and compact, and the heat conduction smoother.

[0009] Furthermore, the height difference between the first heat exchange section and the second heat exchange section is less than or equal to the height of the coil assembly. This structure can achieve efficient heat dissipation for electronic devices without increasing the product size.

[0010] Furthermore, the outer casing includes a cover and a housing. The housing has a cavity for accommodating the coil assembly, the electronic control module, and the heat-conducting component. The cover is placed over the cavity. The coil assembly is disposed between the first heat exchange section and the cover. The second heat exchange section is thermally connected to the cover. This structure facilitates product disassembly and maintenance.

[0011] Furthermore, it also includes a heat dissipation assembly disposed within the receiving cavity. The heat dissipation assembly is connected to the liquid heat-conducting element and is located on the side of the second heat exchange section away from the cover. This structure ensures sufficient water supply to the liquid cooling plate, guaranteeing heat dissipation, while also making efficient use of the space within the receiving cavity, resulting in a more compact structure.

[0012] Furthermore, the heat-conducting component is a liquid-cooled plate, and the liquid-cooled plate has a liquid flow channel located inside the first heat exchange section, the second heat exchange section, and the connecting section. This structure can achieve cyclic cooling and improve cooling efficiency.

[0013] Furthermore, the heat dissipation assembly includes a liquid circulation unit connected to the liquid flow channel; or, the heat dissipation assembly includes a liquid circulation unit and a radiator, the liquid circulation unit connected to the liquid flow channel and the radiator connected to the liquid circulation unit; or the heat dissipation assembly includes a liquid circulation unit, a radiator, and a fan, the liquid circulation unit connected to the liquid flow channel, the radiator connected to the liquid circulation unit along a first direction, and the fan and the radiator arranged along a second direction, the first direction being perpendicular to the second direction. This layout allows for a more compact structure and enables timely cooling of the returning water, ensuring that the cooled water effectively dissipates heat from the electronic equipment, coil components, and electronic control modules.

[0014] Furthermore, the electronic control module includes a battery, which is disposed on the side of the first heat exchange section away from the coil assembly;

[0015] Alternatively, the electronic control module may include a main control board located on the side of the first heat exchange section away from the coil assembly;

[0016] Alternatively, the electronic control module may include a battery and a main control board. The battery is disposed on the side of the first heat exchange section away from the coil assembly, and the main control board is located between the heat dissipation assembly and the battery. This layout is compact and enables efficient heat dissipation for the electronic control module.

[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is an overall axial view of the wireless charging device described in this utility model;

[0019] Figure 2 This is an overall front view of the wireless charging device described in this utility model;

[0020] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 Front view of the heat-conducting component;

[0022] Figure 5 This is an axial view of the heat-conducting component;

[0023] Figure 6 This is a diagram showing the internal structure of the casing of the wireless charging device described in this utility model;

[0024] Explanation of reference numerals in the attached diagram: h, height direction; a, first direction; b, second direction; The first included angle; 11. Second included angle; 12. Cover; 13. Receiving cavity; 14. First air vent; 15. Second air vent; 2. Coil assembly; 21. Coil; 22. Magnet; 31. Heat-conducting component; 311. First heat exchange section; 3111. First base plate; 3112. Support plate; 3113. First liquid passage; 312. Second heat exchange section; 3121. Second base plate; 3122. Second liquid passage; 313. Connecting part; 3131. Third base plate; 3132. Third liquid passage; 314. Barrier ridge; 315. Return zone; 316. Liquid outlet zone; 317. Heat absorption zone; 318. First liquid passage hole; 319. Second liquid passage hole; 32. Radiator; 33. Fan; 34. Liquid pump; 35. Water pipe; 36. Water tank; 41. Battery. Detailed Implementation

[0025] To improve charging efficiency and heat dissipation, this solution adjusts the spatial position of the heat-conducting component and improves its structure. This enhances the charging efficiency and magnetic attraction of the coil assembly while ensuring that the heat-conducting component can cool and dissipate heat from the coil assembly, battery, and electronic devices, making the product better meet market demands.

[0026] Please see Figure 1-6 , Figure 1 This is an overall axial view of the wireless charging device described in this utility model; Figure 2 This is an overall front view of the wireless charging device described in this utility model; Figure 3 for Figure 2 A cross-sectional view along the AA direction; Figure 4 Front view of the heat-conducting component; Figure 5 This is an axial view of the heat-conducting component; Figure 6 This is a structural diagram of the internal structure of the wireless charging device housing described in this utility model.

[0027] This utility model discloses a wireless charging device, including a shell, a coil assembly 2, a cooling module, a heat dissipation component, and an electronic control module. The shell includes a cover 11 and a cover 12 covering the cover 11, and an internal cavity 13 is formed to accommodate the coil assembly 2, the cooling module, the heat dissipation component, and the electronic control module.

[0028] The coil assembly 2 abuts against the cover 12 and includes a coil 21 for charging the electronic device and a magnet 22 for magnetically attracting the electronic device. The coil 21 and magnet 22 can be arranged in various structural forms. In this embodiment, there are multiple magnets 22 arranged around the outside of the coil 21. In use, the electronic device (such as a mobile phone) is brought close to the cover 12, so that the magnet 22 attracts the electronic device, which makes the electronic device fit tightly against the cover 12 and correspond to the coil 21, thus improving charging efficiency.

[0029] The cooling module includes a heat-conducting component 31, which is sandwiched between the coil 21 and the electronic control module. The heat-conducting component 31 can be a flat plate structure. In this embodiment, to improve charging efficiency while ensuring heat dissipation for the electronic device, the heat-conducting component 31 is designed as a bent structure, including a first heat exchange section 311, a second heat exchange section 312, and a connecting section 313. The coil assembly 2 is sandwiched between the first heat exchange section 311 and the cover 12. Along the direction from the first heat exchange section 311 towards the coil assembly 2, the second heat exchange section 312 is positioned closer to the outer casing than the first heat exchange section 311. For example, the second heat exchange section 312 is positioned close to and abuts against the cover 12, creating a height difference between the first heat exchange section 311 and the second heat exchange section 312 in the height direction h. Therefore, when the electronic device is in contact with the cover 12, heat can be conducted and dissipated through the second heat exchange section 312, achieving cooling.

[0030] Preferably, the height difference between the first heat exchange section 311 and the second heat exchange section 312 is less than or equal to the height of the coil assembly 2. This allows the coil assembly 2 to be positioned closer to the outer casing, shortening the distance between the coil assembly 2 and the electronic device, thus improving charging efficiency. Alternatively, the height difference between the first heat exchange section 311 and the second heat exchange section 312 is equal to the height of the coil assembly 2. This improves charging efficiency while also allowing the second heat exchange section 312 to be positioned closer to the outer casing, enhancing efficient heat dissipation for the electronic device without increasing the product's blank volume, thereby reducing the overall product size. The connecting section 313 is connected to the first heat exchange section 311 and the second heat exchange section 312 at both ends, and its connection structure can be designed in various forms, such as extending vertically.

[0031] The heat-conducting component 31 can have various structural forms. In this embodiment, the heat-conducting component 31 is a liquid cooling plate. The liquid cooling plate is provided with a liquid flow channel. The liquid flow channel is located inside the first heat exchange part 311, the connecting part 313, and the second heat exchange part 312. For example, the liquid flows from the first heat exchange part 311 through the connecting part 313 and into the second heat exchange part 312. The coolant flows in the heat-conducting component 31 and carries away the heat generated by the coil 21 and the electronic control module during operation. In this embodiment, water is used as an example of the coolant.

[0032] The connecting portion 313 is inclined between the first heat exchange portion 311 and the second heat exchange portion 312, that is, it is inclined downward from the second heat exchange portion 312 towards the first heat exchange portion 311. Specifically, the first heat exchange portion 311 and the connecting portion 313 form a first angle. The second heat exchange section 312 and the connecting section 313 form a second angle. First corner Second angle The internal angles are equal and can be acute. Preferably, to ensure smooth flow, the internal angles are obtuse. On the one hand, this allows the liquid to flow downwards from the first heat exchange section 311 at an angle. When the internal angle is obtuse, the liquid does not need to bend, making the liquid flow more smoothly. On the other hand, when the internal angle is obtuse, some components can be better accommodated in the assembly space formed by the obtuse angle, making the components more compact and reducing the size of the wireless charging device.

[0033] The first heat exchange section 311 of the liquid cooling plate includes a first base plate 3111 and a support plate 3112 covering the first base plate 3111. The coil assembly 2 is placed on the support plate 3112, and a first liquid passage 3113 is formed between the first base plate 3111 and the support plate 3112. The second heat exchange section includes a second base plate 3121, which is connected to the cover 12, and a second liquid passage 3122 is formed between the second base plate 3121 and the cover 12. The connecting section 313 includes a third base plate 3131 connecting the first base plate 3111 and the second base plate 3121. The third base plate 3131 is inclined and forms a third liquid passage 3132 with the cover 12. The third liquid passage 3132 communicates with the first liquid passage 3112 and the second liquid passage 3123.

[0034] The liquid cooling plate is also provided with a barrier strip 314, which extends from the second base plate 3121 into the first base plate 3111, dividing the first liquid passage 3112, the second liquid passage 3123, and the third liquid passage 3132 into a reflux zone 315 and a liquid outlet zone 316 separated on both sides of the barrier strip 314, and a heat absorption zone 317 that is arc-shaped and whose two ends are respectively connected to the reflux zone 315 and the liquid outlet zone 316. The outer diameter of the heat absorption zone 317 is equal to or similar to the outer diameter of the coil 21, thereby improving the heat exchange efficiency.

[0035] Since the water temperature is highest when passing through coil 21, to ensure that the electronic equipment, coil 21, and electronic control module can all be cooled, the heat dissipation component is located on the side of the second heat exchange section 312 away from the cover 12. At the same time, it can also make reasonable use of the space at the bottom of the second heat exchange section 312. The heat dissipation component includes a liquid circulation unit, which is connected to the liquid flow channel. The liquid circulation unit includes a liquid pump 34, a water pipe 35, and a water tank 36. The second base plate 3121 also has a first liquid passage hole 318 corresponding to the return flow area 315 and a second liquid passage hole 319 corresponding to the liquid outlet area 316. The first liquid passage hole 318 is connected to the liquid pump 34 and the water tank 36 through the water pipe 35 and is connected to the second liquid passage hole 319. When the liquid pump 34 is started, hot water flows into the water pipe 35 through the first liquid passage hole 318, passes through the water tank 36, and flows out through the second liquid passage hole 319, thereby realizing the circulation of coolant.

[0036] In another embodiment, the heat dissipation assembly includes a radiator 32 and the liquid circulation unit described above. The radiator 32 is connected to the water tank 36, thereby cooling the water in the water tank 36.

[0037] In another embodiment, the heat dissipation assembly includes a radiator 32, a fan 33, and the aforementioned liquid circulation unit. The fan 33 is located on the side of the second heat exchange section 312 away from the cover 12, and its arrangement with the radiator 32 and the liquid circulation unit can be along a straight line or in various other forms. To make the structure more compact and reduce the product volume, the radiator 32 and the liquid circulation unit are connected along a first direction a, and the fan 33 is arranged with the radiator 32 along a second direction b. The first direction a and the second direction b are perpendicular, and the second direction can be on the same horizontal plane as the first direction a. Preferably, the second direction and the first direction a are on the same vertical plane, thereby making the structure most compact.

[0038] To improve heat dissipation efficiency, the cover 11 is provided with a first air vent 14 and a second air vent 15, with the radiator 32 corresponding to the first air vent 14. The air outlet of the fan 33 corresponds to the second air vent 15. When the fan 33 is started, it creates a negative pressure in the receiving cavity 13 to draw in external air. The air carries away heat as it passes through the radiator 32, and the heat is carried away from the equipment by the second air vent 15. Alternatively, the air inlet of the fan 33 corresponds to the second air vent 15. When the fan 33 is started, it draws external air into the receiving cavity 13. The air carries away heat as it passes through the radiator 32, and the heat is carried away from the equipment by the second air vent 15.

[0039] The electronic control module includes a battery 41 and a main control board. The battery 41 is located on the side of the first heat exchange section 311 away from the coil assembly 2. The main control board is located on the side of the first heat exchange section 311 away from the coil assembly 2, or it is in contact with the heat sink 32 and located on the side of the second heat exchange section 312 away from the cover 12, and is located between the heat sink assembly and the battery 41, so that the electronic control module can be cooled in time.

[0040] In use, water flows into the water pipe 35 through the first liquid passage 318, and is cooled by the radiator 32 in the water tank 36. Driven by the liquid pump 34, it then flows into the heat-conducting component 31 through the second liquid passage 319. The cooled water then flows to the first heat exchange section 311, where it exchanges heat with the cover 12, thus cooling the electronic equipment that is in contact with the cover 12. As it flows into the first heat exchange section 311, the water further absorbs heat from the coil 21 and the battery 41. The heated water flows back to the second heat exchange section 312 and then into the water pipe 35 through the first liquid passage 318, thus achieving water circulation.

[0041] The wireless charging device described in this utility model achieves the required cooling effect for the coil assembly and electronic control module without increasing the product size by adjusting the position of the heat-conducting component, thus maintaining the safety and performance of the wireless charging device. At the same time, it also enables the electronic device to be stably attached to the coil assembly, which can meet market demands.

[0042] In the description of this application, it should be understood that if terms such as "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 application.

[0043] Furthermore, where the terms "first," "second," and "third" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A wireless charging device, characterized in that, include: The device includes a housing and a coil assembly, an electronic control module, and a heat-conducting component housed within the housing. The coil assembly is disposed close to the housing, and the heat-conducting component is sandwiched between the coil assembly and the electronic control module. The heat-conducting component includes a first heat exchange section and a second heat exchange section connected together. The coil assembly is disposed between the first heat exchange section and the housing. In the height direction of the wireless charging device, the first heat exchange section and the second heat exchange section have a height difference.

2. The wireless charging device according to claim 1, characterized in that: Along the direction from the first heat exchange section toward the coil assembly, the second heat exchange section is disposed relative to the first heat exchange section and close to the housing.

3. A wireless charging device according to claim 2, characterized in that: The heat-conducting component also includes a connecting portion, through which the first heat exchange portion and the second heat exchange portion are connected.

4. A wireless charging device according to claim 3, characterized in that: The connecting part is inclined, and its inclination direction is downward from the second heat exchange part to the first heat exchange part. The first heat exchange part and the second heat exchange part form an internal offset angle through the connecting part, and the internal offset angle is an obtuse angle.

5. A wireless charging device according to claim 3, characterized in that: The height difference between the first heat exchange section and the second heat exchange section is less than or equal to the height of the coil assembly.

6. A wireless charging device according to any one of claims 3-5, characterized in that: The outer casing includes a cover and a housing. The housing has a cavity for accommodating the coil assembly, the electronic control module, and the heat-conducting component. The cover is placed over the cavity. The coil assembly is disposed between the first heat exchange section and the cover. The second heat exchange section is thermally connected to the cover.

7. A wireless charging device according to claim 6, characterized in that: It also includes a heat dissipation component disposed in the receiving cavity, the heat dissipation component being connected to the heat-conducting element and disposed on the side of the second heat exchange section away from the cover.

8. A wireless charging device according to claim 7, characterized in that: The heat-conducting component is a liquid-cooled plate, and the liquid-cooled plate has a liquid flow channel inside, which is located inside the first heat exchange section, the second heat exchange section and the connecting section.

9. A wireless charging device according to claim 8, characterized in that: The heat dissipation assembly includes a liquid circulation unit that is connected to the liquid flow channel; or, the heat dissipation assembly includes a liquid circulation unit and a radiator, the liquid circulation unit being connected to the liquid flow channel and the radiator being connected to the liquid circulation unit; or the heat dissipation assembly includes a liquid circulation unit, a radiator, and a fan, the liquid circulation unit being connected to the liquid flow channel, the radiator being connected to the liquid circulation unit along a first direction, and the fan being arranged with the radiator along a second direction, the first direction being perpendicular to the second direction.

10. A wireless charging device according to claim 7, characterized in that: The electronic control module includes a battery, which is disposed on the side of the first heat exchange section away from the coil assembly; Alternatively, the electronic control module may include a main control board located on the side of the first heat exchange section away from the coil assembly; Alternatively, the electronic control module may include a battery and a main control board, with the battery disposed on the side of the first heat exchange section away from the coil assembly, and the main control board located between the heat dissipation assembly and the battery.

Images