High-heat-dissipation folding type wireless charging device

Abstract

A high-heat-dissipation folding type wireless charging device comprises a plurality of independent heat dissipation bodies, each independent heat dissipation body transmits heat to a respective shell through a heat conduction piece and / or air convection, and the plurality of independent heat dissipation bodies comprise a first heat dissipation body, a second heat dissipation body and a third heat dissipation body. The first heat dissipation body is rotatably connected to the second heat dissipation body through a power-on rotating shaft, a channel is formed in the power-on rotating shaft and used for laying a charging line so that the first heat dissipation body can be electrically connected with the second heat dissipation body, and the second heat dissipation body is connected with the third heat dissipation body through the charging line. The three parts dissipate heat respectively, so that heat generated by the wireless charging device can be quickly and efficiently diffused.

Description

Technical Field

[0001] The utility model relates to the field of wireless charging, in particular to a high-heat dissipation foldable wireless charging device. Background Art

[0002] With the development of the times, wireless charging devices are becoming more and more popular among the public because of their convenience. Wireless charging is a charging technology based on the principle of electromagnetic induction. Wireless charging devices can transmit electrical energy to devices wirelessly. When in use, you only need to place the device to be charged on the wireless charging panel to charge it. It is convenient and fast. Usually, the heat generated by the wireless charging device is concentrated on the magnetic induction charging coil assembly, the wireless charging circuit main board and the power main board, and these three parts are often integrated together, resulting in heat concentration, and the temperature rise affects the wireless charging efficiency. Utility Model Content

[0003] In view of this, a high heat dissipation foldable wireless charging device is provided, which has multiple heat dissipation bodies, can dissipate heat quickly and efficiently, and can serve as a supporting bracket.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a high heat dissipation foldable wireless charging device, comprising a plurality of independent heat sinks, each of which transfers heat to its own shell through a heat conductor and / or air convection, the plurality of independent heat sinks comprising a first heat sink, a second heat sink and a third heat sink, the first heat sink being rotatably connected to the second heat sink through an energized shaft, a channel being arranged inside the energized shaft for laying a charging line so that the first heat sink is electrically connected to the second heat sink, the second heat sink is connected to the third heat sink through a charging line, the first heat sink comprising a first upper cover, a magnetic induction coil assembly and a first lower cover, the magnetic induction coil assembly being accommodated in a space enclosed by the first upper cover and the first lower cover, the second heat sink comprising a second upper cover, a charging mainboard and a second lower cover, the charging mainboard being accommodated in a space enclosed by the second upper cover and the second lower cover, the third heat sink comprising a shell and a power mainboard, the power mainboard being accommodated inside the shell.

[0005] Furthermore, the first heat sink can be folded and stored on the top of the second heat sink after rotating around the energized rotating shaft.

[0006] Furthermore, the power-carrying rotating shaft is arranged on the lower side of the bottom edge of the first lower cover, a through hole is arranged in the middle of the power-carrying rotating shaft for wiring, and symmetrical pointed-angled shaft bodies are arranged at both ends of the power-carrying rotating shaft, and the pointed corners of the pointed-angled shaft bodies are perpendicular to the bottom surface of the first lower cover.

[0007] Furthermore, the magnetic induction coil assembly includes a magnet and an induction coil assembly, the first lower cover is provided with an incompletely closed annular groove for accommodating the magnet, the induction coil assembly is accommodated in the inner ring of the annular groove, and the unclosed portion of the annular groove is connected to the through hole.

[0008] Furthermore, the second upper cover includes a charging interface and a charging cable fixing seat, the charging cable connected to the second heat sink passes through the charging interface and is connected to the charging mainboard, the charging cable fixing seat is arranged on the inner side of the charging interface, and the charging cable is gathered at the charging cable fixing seat.

[0009] Furthermore, the second upper cover is provided with a buckle, the second lower cover is provided with a slot, and the second heat sink is integrated into one body through the buckle and the slot.

[0010] Furthermore, the bottom of the second upper cover also includes an upper cover limiting column, an upper cover connecting hole and a partition, the charging mainboard is provided with a mainboard limiting hole and a mainboard connecting hole, the upper cover limiting column cooperates with the mainboard limiting hole, the upper cover connecting hole and the mainboard connecting hole are connected by fasteners to fix the charging mainboard to the bottom of the second upper cover, and the partition abuts against the charging mainboard.

[0011] Furthermore, the second heat sink also includes a bent plate member, one end of which is fixedly connected to the second upper cover, and the other end of which is bent into a pointed axis hole that can wrap around the pointed axis body, and the pointed axis hole has two pointed corners, which are an oblique pointed corner and a vertical pointed corner, and a predetermined angle is provided between the two pointed corners.

[0012] Furthermore, when the pointed-angle shaft body rotates from the vertical pointed-angle portion to the oblique pointed-angle portion, the first heat sink changes from a folded and stored state to an unfolded state, and the predetermined angle corresponds to a rotatable angle of the first heat sink.

[0013] Furthermore, the third heat sink also includes a charging connector, and the charging connector is connected to the power supply mainboard to supply power to the power supply mainboard.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects: this high-heat dissipation foldable wireless charging device separates the magnetic induction coil assembly, the charging main board and the power main board. Compared with the traditional wireless charging device, the heat dissipation body is divided into three parts, and the three parts dissipate heat separately, which can quickly and efficiently diffuse the heat generated by the wireless charging device, so that the heat cannot accumulate and affect the wireless charging efficiency. At the same time, the second heat sink can be placed on the desktop to act as a supporting bracket, and the first heat sink is rotated around the bending plate through the energized shaft, so that the first heat sink can be stored and folded on the upper part of the second heat sink, and can also be unfolded to form a predetermined angle with the second heat sink. At this time, the wireless charging device can support the charging device to be charged to be placed flat or tilted for charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 The utility model is a three-dimensional schematic diagram of a high heat dissipation foldable wireless charging device in a folded state.

[0017] Figure 2 It is a three-dimensional schematic diagram of an unfolded state of a high-heat dissipation foldable wireless charging device of the utility model.

[0018] Figure 3 It is an exploded schematic diagram of a high heat dissipation foldable wireless charging device of the utility model.

[0019] Figure 4 It is a schematic diagram of an exploded view of another direction of a high heat dissipation foldable wireless charging device of the utility model.

[0020] Figure 5 yes Figure 3 A partial enlarged view of part A.

[0021] Figure 6 yes Figure 3 A partial enlarged view of part B.

[0022] in,

[0023] 1. First heat sink; 11. Power-carrying rotating shaft; 111. Through hole; 112. Pointed shaft; 12. First upper cover; 13. Magnetic induction coil assembly; 131. Magnet; 132. Induction coil assembly; 14. First lower cover; 141. Annular groove; 2. Second heat sink; 21. Second upper cover; 211. Charging interface; 212. Charging cable fixing seat; 213. Buckle; 214. Upper cover limiting column; 215. Upper cover connecting hole; 216. Separator; 22. Charging main board; 221. Main board limiting hole; 222. Main board connecting hole; 23. Second lower cover; 231. Slot; 24. Bent plate; 241. Oblique pointed corner; 242. Vertical pointed corner; 3. Third heat sink; 31. Shell; 32. Charging connector; 4. Charging cable. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0027] See also Figure 1 to Figure 6, showing a high heat dissipation foldable wireless charging device provided by an embodiment of the utility model, including multiple independent heat sinks, each of which transfers heat to its own shell through a heat conductor and / or air convection, and the multiple independent heat sinks include a first heat sink 1, a second heat sink 2 and a third heat sink 3, the first heat sink 1 is rotatably connected to the second heat sink 2 through an energized shaft 11, and a channel is provided in the energized shaft 11 for laying a charging line 4 so that the first heat sink 1 is electrically connected to the second heat sink 2, and the second heat sink 2 is electrically connected to the The third heat sink 3 is connected via a charging cable 4. The first heat sink 1 includes a first upper cover 12, a magnetic induction coil assembly 13 and a first lower cover 14. The magnetic induction coil assembly 13 is accommodated in a space enclosed by the first upper cover 12 and the first lower cover 14. The second heat sink 2 includes a second upper cover 21, a charging mainboard 22 and a second lower cover 23. The charging mainboard 22 is accommodated in a space enclosed by the second upper cover 21 and the second lower cover 23. The third heat sink 3 includes a shell 31 and a power mainboard. The power mainboard is accommodated inside the shell 31.

[0028] In some specific embodiments, the magnetic induction coil assembly 13, the charging mainboard 22 and the power mainboard of the wireless charging device are separately arranged in three independent heat sinks, so that the three are cooled separately through their respective heat sinks to avoid the superposition of heat generated by the three electronic devices and affect the heat dissipation effect. The existing product is to place these three electronic devices in a charging shell, resulting in superposition of heat, and the heat is concentrated in a charging shell, which brings many problems to the heat dissipation. More specifically, each heat sink can be set with a heat dissipation method as needed. On the one hand, it can increase the contact area between the shell and the air to speed up the heat dissipation speed. On the other hand, it can increase the convenience and flexibility of the placement of electronic devices, greatly improve the applicable space of the wireless charging function, and can also be split into more independent heat sinks for heat dissipation as needed. In this embodiment, the charging mainboard 22 is used to power the device to be charged placed on the first heat sink 1, and the power mainboard is used to input an external power supply to power the wireless charging device. The heat conductive member can be a thermal pad, a thermal block, a thermal adhesive, etc.

[0029] Specifically, the first heat sink 1 can be folded and stored on the top of the second heat sink 2 after rotating around the powered shaft 11. At this time, the second heat sink 2 serves as a self-supporting bracket to support the first heat sink 1. The first heat sink 1 has a built-in magnetic induction coil assembly 13, and the device to be charged is placed horizontally on the upper part of the first heat sink 1 for charging.

[0030] More specifically, the power-carrying rotating shaft 11 is arranged on the lower side of the bottom edge of the first lower cover 14, a through hole 111 is arranged in the middle of the power-carrying rotating shaft 11 for wiring, and symmetrical pointed-angled shaft bodies 112 are arranged at both ends of the power-carrying rotating shaft 11, and the pointed corners of the pointed-angled shaft bodies 112 are perpendicular to the bottom surface of the first lower cover 14.

[0031] In some specific embodiments, the powered rotating shaft 11 is provided with a pointed shaft body 112 which is used to cooperate with the pointed shaft hole of the bent plate member 24 to achieve rotational positioning. In this embodiment, the pointed shaft body is adopted because the contact area between the pointed corner and the inner wall of the shaft hole during rotation is small, so the friction resistance is small and it is easier to rotate. A damping structure can also be provided on the powered rotating shaft 11 so that the first heat sink 1 can stay at any position when rotating.

[0032] More specifically, the magnetic induction coil assembly 13 includes a magnet 131 and an induction coil assembly 132. The first lower cover 14 is provided with an incompletely closed annular groove 141 for accommodating the magnet 131. The induction coil assembly 132 is accommodated in the inner ring of the annular groove 141. The unclosed portion of the annular groove 141 is connected to the through hole 111.

[0033] Specifically, the second upper cover 21 includes a charging interface 211 and a charging cable fixing seat 212. The charging cable 4 connected to the second heat sink 2 passes through the charging interface 211 and is connected to the charging mainboard 22. The charging cable fixing seat 212 is provided on the inner side of the charging interface 211, and the charging cable 4 is gathered at the charging cable fixing seat 212.

[0034] Specifically, the second upper cover 21 is provided with a buckle 213 , the second lower cover 23 is provided with a slot 231 , and the second heat sink 2 is integrated into one body by the buckle 213 and the slot 231 .

[0035] Specifically, the bottom of the second upper cover 21 also includes an upper cover limiting column 214, an upper cover connecting hole 215 and a separator 216. The charging mainboard 22 is provided with a mainboard limiting hole 221 and a mainboard connecting hole 222. The upper cover limiting column 214 cooperates with the mainboard limiting hole 221. The upper cover connecting hole 215 and the mainboard connecting hole 222 are connected by fasteners to fix the charging mainboard 22 to the bottom of the second upper cover 21. The separator 216 abuts against the charging mainboard 22. The separator 216 is used to form a charging component accommodating space on the charging mainboard 22 between the second upper cover 21 and the charging mainboard 22.

[0036] More specifically, the second heat sink 2 also includes a bent plate 24, one end of which is fixedly connected to the second upper cover 21, and the other end of the bent plate 24 is bent into a pointed shaft hole that can wrap the pointed shaft body 112, and the pointed shaft hole has two pointed corners, which are an oblique pointed corner 241 and a vertical pointed corner 242, and a predetermined angle is formed between the two pointed corners.

[0037] More specifically, when the pointed shaft 112 rotates from the vertical pointed portion 242 to the oblique pointed portion 241, the first heat sink 1 changes from a folded storage state to an unfolded state, and the predetermined angle corresponds to the rotatable angle of the first heat sink 1. At this time, the wireless charging device can support the device to be charged to be placed at an angle for charging.

[0038] Specifically, the third heat sink 3 further includes a charging connector 32 , and the charging connector 32 is connected to the power supply mainboard to supply power to the power supply mainboard.

[0039] In some specific embodiments, the heat conductor can be a heat-conductive metal block that supports the shell side and the two ends or both sides of the metal block are directly or indirectly in contact with the inner wall of the shell, the circuit board (or other heating elements), respectively. The heat conductor can also use thermal conductive adhesive. For example, the coil body can be adhered to the corresponding inner wall of the shell with thermal conductive adhesive. At the same time, the magnetic induction coil assembly 13, the charging main board 22 and the power main board can also transfer heat to the shell through air convection. For example, the internal space of the first heat sink 1 is relatively large, and air convection can be fully utilized to transfer heat to the corresponding shell.

[0040] To sum up, this high-heat dissipation foldable wireless charging device separates the magnetic induction coil assembly 13, the charging main board 22 and the power main board. Compared with the traditional wireless charging device, the heat dissipation body is divided into three parts. The three parts dissipate heat separately, increasing the contact area between the outer shell and the air, and can quickly and efficiently diffuse the heat generated by the wireless charging device, so that the heat cannot accumulate and affect the wireless charging efficiency. At the same time, the second heat sink 2 can be placed on the desktop to act as a supporting bracket, and the first heat sink 1 is rotated around the bending plate 24 through the energized rotating shaft 11, so that the first heat sink 1 can be stored and folded on the top of the second heat sink 2, and can also be unfolded to form a predetermined angle with the second heat sink 2. At this time, the wireless charging device can support the charging of the device to be charged flat or tilted.

[0041] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A high heat dissipation foldable wireless charging device, characterized in that: The invention comprises a plurality of independent heat sinks, each of which transfers heat to its own shell through a heat conductor and / or air convection. The plurality of independent heat sinks comprise a first heat sink, a second heat sink and a third heat sink. The first heat sink is rotatably connected to the second heat sink through an energized shaft. A channel is provided in the energized shaft for laying a charging line so that the first heat sink is electrically connected to the second heat sink, and the second heat sink is connected to the third heat sink through a charging line. The first heat sink comprises a first upper cover, a magnetic induction coil assembly and a first lower cover, and the magnetic induction coil assembly is accommodated in a space enclosed by the first upper cover and the first lower cover. The second heat sink comprises a second upper cover, a charging mainboard and a second lower cover, and the charging mainboard is accommodated in a space enclosed by the second upper cover and the second lower cover. The third heat sink comprises a shell and a power mainboard, and the power mainboard is accommodated in the shell.

2. A high heat dissipation foldable wireless charging device according to claim 1, characterized in that: The first heat sink can be folded and stored on the top of the second heat sink after rotating around the energized rotating shaft.

3. The high heat dissipation foldable wireless charging device according to claim 2, characterized in that: The powered rotating shaft is arranged on the lower side of the bottom edge of the first lower cover, a through hole is arranged in the middle of the powered rotating shaft for wiring, and symmetrical pointed-angled shaft bodies are arranged at both ends of the powered rotating shaft, and the pointed corners of the pointed-angled shaft bodies are perpendicular to the bottom surface of the first lower cover.

4. The high heat dissipation foldable wireless charging device according to claim 3, characterized in that: The magnetic induction coil assembly includes a magnet and an induction coil assembly. The first lower cover is provided with an incompletely closed annular groove for accommodating the magnet. The induction coil assembly is accommodated in the inner ring of the annular groove. The unclosed portion of the annular groove is connected to the through hole.

5. The high heat dissipation foldable wireless charging device according to claim 1, characterized in that: The second upper cover includes a charging interface and a charging cable fixing seat. The charging cable connected to the second heat sink passes through the charging interface and is connected to the charging mainboard. The charging cable fixing seat is arranged on the inner side of the charging interface, and the charging cable is gathered at the charging cable fixing seat.

6. The high heat dissipation foldable wireless charging device according to claim 1, characterized in that: The second upper cover is provided with a buckle, the second lower cover is provided with a slot, and the second heat sink is integrated into one body through the buckle and the slot.

7. The high heat dissipation foldable wireless charging device according to claim 1, characterized in that: The bottom of the second upper cover also includes an upper cover limiting column, an upper cover connecting hole and a separator. The charging mainboard is provided with a mainboard limiting hole and a mainboard connecting hole. The upper cover limiting column cooperates with the mainboard limiting hole. The upper cover connecting hole and the mainboard connecting hole are connected by fasteners to fix the charging mainboard to the bottom of the second upper cover, and the separator abuts against the charging mainboard.

8. The high heat dissipation foldable wireless charging device according to claim 3, characterized in that: The second heat sink also includes a bent plate, one end of which is fixedly connected to the second upper cover, and the other end of which is bent into a pointed axis hole that can wrap around the pointed axis body, the pointed axis hole having two pointed corners, which are an oblique pointed corner and a vertical pointed corner, respectively, and a predetermined angle is formed between the two pointed corners.

9. The high heat dissipation foldable wireless charging device according to claim 8, characterized in that: When the pointed shaft body rotates from the vertical pointed corner portion to the oblique pointed corner portion, the first heat sink changes from a folded storage state to an unfolded state, and the predetermined angle corresponds to a rotatable angle of the first heat sink.

10. The high heat dissipation foldable wireless charging device according to claim 1, characterized in that: The third heat sink also includes a charging connector, which is connected to the power supply mainboard to supply power to the power supply mainboard.

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