Wireless charging device

Abstract

The embodiment of the utility model provides a wireless charging device, which comprises a shell, a coil assembly, a heat dissipation piece and a circuit board assembly, the coil assembly, the heat dissipation piece and the circuit board assembly are all assembled in the shell, one side of the heat dissipation piece is in heat conduction connection with one side of the coil assembly, and the other side of the heat dissipation piece is in heat conduction connection with the circuit board assembly. Thus, heat dissipation can be carried out on the coil assembly and the circuit board assembly through the heat dissipation piece, the heat dissipation effect on the coil assembly and the circuit board assembly can be improved, it can be guaranteed that the coil assembly and the circuit board assembly can be in a proper temperature environment, smooth charging operation of the wireless charging device can be guaranteed, and the service life of the wireless charging device can be prolonged. According to the wireless charging device, heat dissipation of the coil assembly and the circuit board assembly can be achieved by arranging the single heat dissipation piece, the structure of the wireless charging device can be simplified, and the manufacturing cost can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging device technical field, specifically, relate to a wireless charging device. BACKGROUND

[0002] The wireless charging device is a device for charging by electromagnetic induction. When current passes through the coil, a magnetic field is generated, and electromagnetic induction generates voltage to drive current flow, thereby achieving charging. The wireless charging device can transmit electric energy to the device through the magnetic field without physical contact, which is convenient for users to charge anytime and anywhere without worrying about the loss or damage of the charging cord.

[0003] However, a large amount of heat is generated during charging of the wireless charging device. In the prior art, only the heat generated by the coil is usually reduced. However, other electronic devices in the wireless charging device also generate a large amount of heat due to work. The heat dissipation effect of the coil and other electronic devices is poor, which will affect the charging efficiency of the wireless charging device. SUMMARY

[0004] The utility model embodiment proposes a wireless charging device to improve the above technical problems.

[0005] The utility model embodiment achieves the above-mentioned purposes through the following technical solutions.

[0006] The utility model embodiment provides a wireless charging device, the wireless charging device includes a shell, a coil assembly, a heat sink and a circuit board assembly, the coil assembly, the heat sink and the circuit board assembly are all assembled in the shell, one side of the heat sink is in thermal conduction connection with one side of the coil assembly, and the other side of the heat sink is in thermal conduction connection with the circuit board assembly.

[0007] In some embodiments, a heat conducting member is further included, the heat conducting member is connected with the coil assembly, one side of the heat sink is connected with the heat conducting member, and the other side of the heat sink is connected with the circuit board assembly.

[0008] In some embodiments, a heat conducting member is further included, the coil assembly, the heat conducting member, the heat sink and the circuit board assembly are distributed along the height direction of the wireless charging device.

[0009] In some embodiments, the wireless charging device further includes a fan, the fan is assembled in the shell, the fan has an air inlet and an air outlet, the heat sink has a heat dissipation channel, the heat dissipation channel is in communication with the air inlet or the air outlet, and / or the fan and the circuit board assembly are distributed along the width direction of the wireless charging device.

[0010] In some embodiments, the circuit board assembly includes a first sub-board and a second sub-board, the first sub-board and the second sub-board are oppositely arranged and define a heat dissipation air duct, and the heat dissipation air duct is in communication with the air inlet or the air outlet.

[0011] In some embodiments, the heat dissipation air duct and the heat dissipation channel are arranged in a spaced manner along a height direction of the wireless charging device.

[0012] In some embodiments, the shell comprises a first air inlet and a second air inlet arranged in a spaced manner, the first air inlet is arranged opposite to the heat dissipation member and communicates with the heat dissipation channel, and the second air inlet is arranged opposite to the circuit board assembly and communicates with the heat dissipation air duct.

[0013] In some embodiments, the heat dissipation member comprises a heat sink and a cover plate, the heat sink comprises a main plate and a heat dissipation fin connected to a surface of the main plate, the cover plate is arranged on a side of the heat dissipation fin away from the main plate, and the heat dissipation fin, the main plate and the cover plate form the heat dissipation channel, the main plate is connected to a side of the heat conduction member away from the coil assembly, and the cover plate is connected to the circuit board assembly.

[0014] In some embodiments, the wireless charging device further comprises a battery, the battery is arranged in the shell, the battery is arranged in a spaced manner with the fan; and / or, the battery is arranged in a spaced manner with the heat dissipation member; and / or, the battery is arranged in a spaced manner with the circuit board assembly.

[0015] In some embodiments, the circuit board assembly, the fan and the heat dissipation member are all arranged on the same side of the battery.

[0016] In some embodiments, the heat conduction member comprises a heat conduction part, the heat conduction part is connected to the coil assembly, and the shape of the heat conduction part is matched with the shape of the coil assembly.

[0017] In some embodiments, the heat conduction member further comprises a heat conduction extension part, the heat conduction extension part is connected to the heat conduction part, the heat conduction extension part is connected to the heat dissipation member, and the heat conduction extension part and part of the heat conduction part completely cover the heat dissipation member, or the heat conduction extension part completely covers the heat dissipation member.

[0018] The wireless charging device provided by the utility model embodiment, the coil assembly, the heat dissipation member and the circuit board assembly of the wireless charging device are all arranged in the shell, one side of the heat dissipation member is in thermal conduction connection with one side of the coil assembly, and the other side of the heat dissipation member is in thermal conduction connection with the circuit board assembly. In this way, the heat dissipation member can simultaneously dissipate heat for the coil assembly and the circuit board assembly, which helps to improve the heat dissipation effect of the coil assembly and the circuit board assembly, helps to ensure that the coil assembly and the circuit board assembly can be in a suitable temperature environment, helps to ensure the smooth operation of the wireless charging device, the wireless charging device sets a single heat dissipation member to realize the heat dissipation for the coil assembly and the circuit board assembly, helps to simplify the structure of the wireless charging device, and helps to save the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0020] Figure 1 The structural schematic diagram of the wireless charging device is shown.

[0021] Figure 2 The structural schematic diagram of the wireless charging device is shown. Figure 1

[0022] Figure 3 The structural schematic diagram of the wireless charging device is shown. Figure 1

[0023] Figure 4 The structural schematic diagram of the fan of the wireless charging device is shown. Figure 1

[0024] Figure 5 The structural schematic diagram of the part of the wireless charging device is shown. Figure 1

[0025] Figure 6 The longitudinal sectional structural schematic diagram of the wireless charging device is shown. Figure 1

[0026] Figure 7 The structural schematic diagram of the heat dissipation member of the wireless charging device is shown. Figure 1

[0027] Figure 8 The structural schematic diagram of the heat conduction member of the wireless charging device is shown. Figure 1

[0028] Figure 9 The structural schematic diagram of the part of the wireless charging device is shown. Figure 5 DETAILED DESCRIPTION

[0029] ​​​​​​​​In order to make the person skilled in the art better understand the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the embodiments of the present application.

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0031] The wireless charging device of the related art generally cools the coil assembly by setting a heat dissipation structure to ensure that the coil assembly is in a suitable temperature environment. However, the heat dissipation structure can only cool the coil assembly, resulting in that a large amount of heat is generated when the circuit board assembly of the wireless charging device is charged, the heat dissipation effect of the circuit board assembly is poor, and the charging efficiency of the wireless charging device is affected.

[0032] Please refer to Figures 1 to 3 The embodiments of the present application provide a wireless charging device 100, which can be a wireless mobile power supply, a wireless charger, etc. The wireless charging device 100 comprises a shell 11, a coil assembly 12, a heat dissipation piece 14 and a circuit board assembly 15. The coil assembly 12, the heat dissipation piece 14 and the circuit board assembly 15 are all assembled in the shell 11. One side of the heat dissipation piece 14 is in thermal conduction connection with one side of the coil assembly 12, and the other side of the heat dissipation piece 14 is in thermal conduction connection with the circuit board assembly 15. By setting the heat dissipation piece 14 to cool the coil assembly 12 and the circuit board assembly 15 at the same time, the heat dissipation effect of the coil assembly and the circuit board assembly is improved, the coil assembly and the circuit board assembly can be ensured to be in a suitable temperature environment, the smooth operation of the wireless charging device is ensured, and the wireless charging device sets a single heat dissipation piece to cool the coil assembly and the circuit board assembly, which is helpful to simplify the structure of the wireless charging device and save the manufacturing cost.

[0033] In an embodiment, the wireless charging device 100 further comprises a heat-conducting member 13, which is arranged in the housing 11 and connected to the coil assembly 12. The heat-conducting member 13 is arranged between the coil assembly 12 and the heat-dissipating member 14. For example, one side of the heat-dissipating member 14 is connected to the heat-conducting member 13, so as to conduct heat from the coil assembly 12 to the heat-dissipating member 14. The heat of the coil assembly 12 is conducted to the heat-dissipating member 14 through the heat-conducting member 13. The other side of the heat-dissipating member 14 directly contacts the circuit board assembly 15, so as to conduct heat from the circuit board assembly 15 to the heat-dissipating member 14. In this way, the heat-conducting member 13 can conduct the heat of the coil assembly 12 to the heat-dissipating member 14, and the heat-dissipating member 14 can dissipate the heat of the coil assembly 12 and the circuit board assembly 15, so as to improve the heat dissipation effect of the coil assembly 12 and the circuit board assembly 15, ensure that the coil assembly 12 and the circuit board assembly 15 can be in a suitable temperature environment, and ensure that the wireless charging device 100 can run smoothly. The wireless charging device 100 can dissipate the heat of the coil assembly 12 and the circuit board assembly 15 by arranging a single heat-dissipating member 14, so as to simplify the structure of the wireless charging device 100 and save manufacturing costs.

[0034] For example, the heat-conducting member 13 is attached to the coil assembly 12 by glue, one side of the heat-dissipating member 14 is attached to the side of the heat-conducting member 13 away from the coil assembly 12 by glue, and the other side of the heat-dissipating member 14 is attached to the circuit board assembly 15 by glue.

[0035] In this way, the fastness of the connection between the heat-conducting member 13, the coil assembly 12, the heat-dissipating member 14, the heat-conducting member 13, and the circuit board assembly 15 can be improved, the heat-conducting efficiency of the heat-conducting member 13 to the coil assembly 12 can be improved, and the heat-dissipating efficiency of the heat-dissipating member 14 to the heat-conducting member 13 and the circuit board assembly 15 can be improved.

[0036] For example, a magnetic shielding member can be arranged between the heat-conducting member 13 and the coil assembly 12. The magnetic shielding member can reduce the magnetic field interference between the coil assembly 12 and the heat-conducting member 13, reduce the situation that the coil assembly 12 and the heat-conducting member 13 cannot conduct heat due to magnetic field interference, and ensure the heat-conducting effect of the heat-conducting member 13 to the coil assembly 12.

[0037] For example, the heat-conducting member 13 is attached to the coil assembly 12 by glue, one side of the heat-dissipating member 14 is attached to the side of the heat-conducting member 13 away from the coil assembly 12 by glue, and the other side of the heat-dissipating member 14 is attached to the circuit board assembly 15 by glue. Figure 3 Figure 4 In some embodiments, the wireless charging device 100 further comprises a fan 16 arranged in the housing 11. The fan 16 can have an air inlet 161 and an air outlet 162. The heat-dissipating member 14 has a heat-dissipating channel 143 in communication with the air inlet 161.​

[0038] Specifically, in one embodiment, the fan 16 is a centrifugal fan, and the air inlet 161 of the fan 16 is in communication with the heat dissipation passage 143. In this way, the fan 16 can suck the hot air flow in the heat dissipation passage 143 through the air inlet 161, so that the fan 16 can suck air through the air inlet 161, which helps to ensure that the hot air flow in the heat dissipation passage 143 can enter the air inlet 161 under the suction of the fan 16, and helps to improve the heat dissipation effect of the fan 16 on the heat dissipation member 14. In another embodiment, the fan 16 is an axial fan, and the air outlet 162 of the fan 16 is in communication with the heat dissipation passage 143. In this way, the fan 16 can blow air through the air outlet 162, and the air outlet 162 faces the heat dissipation passage 143. The air blown by the fan 16 blows towards the heat dissipation member 14 and carries away the heat on the heat dissipation member 14.

[0039] Further, the housing 11 can have an air outlet 111 and an air inlet portion. In one embodiment, when the air inlet 161 of the fan 16 is in communication with the heat dissipation passage 143, the fan 16 dissipates heat to the heat dissipation passage 143 by sucking air. At this time, the air outlet 162 is in communication with the air outlet 111, which helps the air flow into the fan 16 to be discharged from the air outlet 162 and the air outlet 111 of the housing 11. The air outlet 111 can be opposite to the air outlet 162, which helps to shorten the flow path of the hot air flow and helps the hot air flow to be better discharged from the air outlet 111. The air outlet 162 of the fan 16 is connected to the air outlet 11, and then the air inlet portion on the housing 11 is connected to the heat dissipation member 14 or the heat dissipation air duct 153. Due to the rotation of the fan 16, the external air enters the heat dissipation passage 143 or the heat dissipation air duct 153 from the air inlet portion, and then the cold air becomes hot air, enters the fan 16 from the air inlet 161, and the hot air is blown from the air outlet 162 of the fan 16 to the air outlet 111, and finally flows out to the outside.

[0040] In another embodiment, when the air outlet 161 of the fan 16 is in communication with one end of the heat dissipation passage 143, the fan 16 dissipates heat to the heat dissipation passage 143 by blowing air. At this time, the air outlet 111 is in communication with the other end of the heat dissipation passage 143, for example, the air outlet 111 can be arranged opposite to the heat dissipation member 14, or the air outlet 111 can be connected to the heat dissipation air duct 153. The air of the fan 16 is blown out from the air outlet 161, passes through the heat dissipation passage 143 or the heat dissipation air duct 153, and is discharged from the air outlet 111 to the outside. At this time, the air inlet portion on the housing is connected to the air inlet 161 of the fan 16.

[0041] Please refer to Figure 5 and Figure 6 In some embodiments, the fan 16 and the circuit board assembly 15 are distributed along the width direction X of the wireless charging device 100. The fan 16 can be a centrifugal fan.

[0042] This helps to accelerate the airflow in the housing 11, which helps the airflow carry away the heat of the circuit board assembly 15 to reduce the temperature of the circuit board assembly 15, so that the circuit board assembly 15 can be in a suitable temperature environment. It also helps to rationally arrange the position between the fan 16 and the circuit board assembly 15, and helps to improve the compactness of the structure of the wireless charging device 100.

[0043] In addition, the fan 16 and the circuit board assembly 15 are spaced apart along the width direction X of the wireless charging device 100, which also prevents the fan 16 from directly contacting the circuit board assembly 15. This helps to increase the heat dissipation area of ​​the circuit board assembly 15, allowing the fan 16 to better dissipate heat from the circuit board assembly 15. It also helps to reduce the vibration generated by the fan 16 during operation from being transmitted to the circuit board assembly 15, which could cause noise in the wireless charging device 100.

[0044] The fan 16 can be positioned opposite the heat sink 14, for example, the fan 16 and the heat sink 14 can be spaced apart along the height direction Y of the wireless charging device 100. This helps to accelerate the airflow in the housing 11, which helps the airflow carry away the heat from the heat sink 14 to reduce its temperature, allowing the heat sink 14 to be in a suitable temperature environment.

[0045] In some embodiments, the coil assembly 12, the heat conductor 13, the heat sink 14, and the circuit board assembly 15 are distributed along the height direction Y of the wireless charging device 100, and the fan 16 and the circuit board assembly 15 are spaced apart along the width direction X of the wireless charging device 100.

[0046] This helps to rationally arrange the positions of the coil assembly 12, heat-conducting component 13, heat sink 14, circuit board assembly 15 and fan 16, and helps to improve the compactness of the wireless charging device 100 structure.

[0047] Please refer to the following: Figure 3 , Figure 5 and Figure 6 In some embodiments, the circuit board assembly 15 includes a first sub-board 151 and a second sub-board 152, the first sub-board 151 and the second sub-board 152 are disposed opposite to each other and define a heat dissipation duct 153, the heat dissipation duct 153 is connected to an air inlet 161 or an air outlet 162.

[0048] In this way, the heat dissipation duct 153 can meet the air flow requirements, allowing the airflow inside the housing 11 to flow through the heat dissipation duct 153 to remove the heat from the first sub-board 151 and the second sub-board 152, thereby reducing the temperature of the first sub-board 151 and the second sub-board 152 and helping to ensure that the circuit board assembly 15 is in a suitable temperature environment.

[0049] In some embodiments, the heat dissipation air duct 153 is arranged in the height direction Y of the wireless charging device 100 and is spaced apart from the heat dissipation channel 143.

[0050] In this way, the heat dissipation air duct 153 and the heat dissipation channel 143 can double-heat-dissipate the circuit board assembly 15, which helps to better cool the circuit board assembly 15, helps to better ensure that the circuit board assembly 15 is in a suitable temperature environment, and helps to reduce the mutual interference of airflows in the heat dissipation air duct 153 and the heat dissipation channel 143, thereby helping to improve the heat dissipation effect of the circuit board assembly 15.

[0051] In some embodiments, the shell 11 includes a first air inlet 112 and a second air inlet 113 which are spaced apart, the first air inlet 112 is arranged opposite to the heat dissipation member 14 and communicates with the heat dissipation channel 143, and the second air inlet 113 is arranged opposite to the circuit board assembly 15 and communicates with the heat dissipation air duct 153.

[0052] In this way, it helps to increase the amount of air flowing through the heat dissipation member 14 and the circuit board assembly 15, and helps to improve the heat dissipation efficiency of the heat dissipation member 14 and the circuit board assembly 15. The air can enter the shell 11 from the first air inlet 112, the airflow flows through the heat dissipation channel 143 and carries away the heat of the heat dissipation member 14, and the air can also enter the shell 11 from the second air inlet 113, the airflow flows through the heat dissipation air duct 153 and carries away the heat of the circuit board assembly 15, thereby achieving cooling of the heat dissipation member 14 and the circuit board assembly 15, which helps to reduce the situation that the heat of the heat dissipation member 14 and the circuit board assembly 15 accumulates in the shell 11 and causes the temperature in the shell 11 to be too high, and also helps to ensure that the coil assembly 12 is in a suitable temperature environment, thereby helping to ensure the normal charging of the wireless charging device 100.

[0053] In some embodiments, the first air inlet 112 and the second air inlet 113 can be multiple, for example, the number of first air inlets 112 can be two, three, four, five, six or other numbers, and multiple first air inlets 112 are arranged to increase the air inlet area, thereby improving the efficiency of the shell 11 from the first air inlet 112; the number of second air inlets 113 can be two, three, four, five, six or other numbers, and multiple second air inlets 113 are arranged to increase the air inlet area, thereby improving the efficiency of the shell 11 from the second air inlet 113, which can be set according to actual conditions.

[0054] Please refer to Figure 2 and Figure 7In some embodiments, the heat dissipating member 14 comprises a heat sink 141 and a cover plate 142, the heat sink 141 comprises a main plate 1411 and heat dissipation fins 1412 connected to a surface of the main plate 1411, the cover plate 142 is arranged on a side of the heat dissipation fins 1412 away from the main plate 1411, and the heat dissipation fins 1412, the main plate 1411 and the cover plate 142 enclose a heat dissipation channel 143, the main plate 1411 is connected to a side of the heat conducting member 13 away from the coil assembly 12, and the cover plate 142 is connected to the circuit board assembly 15. The cover plate 142 has a heat conducting function.

[0055] In this way, the heat of the coil assembly 12 can be conducted to the heat sink 141 through the heat conducting member 13, the heat of the circuit board assembly 15 can be conducted to the cover plate 142, and the airflow in the heat dissipation channel 143 can take away the heat of the heat sink 141 and the cover plate 142, thereby reducing the temperature of the coil assembly 12 and the circuit board assembly 15.

[0056] In addition, the cover plate 142 arranged on the side of the heat dissipation fins 1412 away from the main plate 1411 helps to prevent the airflow in the heat dissipation channel 143 from escaping from the heat dissipation channel 143, helps to form a tubular channel with the heat sink 141 and the cover plate 142, helps to reduce the air leakage of the heat dissipating member 14, and helps to ensure that the airflow can flow through the heat dissipation channel 143 and take away the heat of the heat sink 141 and the cover plate 142.

[0057] Referring back to Figures 2 to 6 In some embodiments, the wireless charging device 100 can further comprise a battery 17, the battery 17 is arranged in the shell 11, and the battery 17 is spaced apart from the fan 16.

[0058] In this way, the fan 16 helps to accelerate the airflow on the side of the battery 17, helps to take away the heat of the battery 17 to reduce the temperature of the battery 17, so that the battery 17 can be in a suitable temperature environment, and also so that the fan 16 does not directly contact the battery 17, helps to increase the heat dissipation area of the battery 17, and helps to improve the heat dissipation effect on the battery 17.

[0059] In some embodiments, the battery 17 is spaced apart from the heat dissipating member 14. In this way, the battery 17 does not directly contact the heat dissipating member 14, helps to reduce the mutual interference of the heat of the battery 17 and the heat of the heat dissipating member 14, and also helps to increase the heat dissipation area of the battery 17 and the heat dissipating member 14, so that the airflow in the shell 11 can better dissipate heat for the battery 17 and the heat dissipating member 14.

[0060] In some embodiments, the battery 17 is spaced apart from the circuit board assembly 15. In this way, the battery 17 is not in direct contact with the circuit board assembly 15, which helps to reduce the mutual influence of the heat of the battery 17 and the heat of the circuit board assembly 15, and also helps to increase the heat dissipation area of the battery 17 and the circuit board assembly 15, so that the airflow in the shell 11 can better dissipate heat from the battery 17 and the circuit board assembly 15.

[0061] In some embodiments, the circuit board assembly 15, the fan 16, and the heat dissipation member 14 are all located on the same side of the battery 17.

[0062] Due to the large volume of the battery 17, such an arrangement helps to reasonably arrange the positions of the fan 16, the circuit board assembly 15, the heat dissipation member 14, and the battery 17, helps to improve the compactness of the structure of the wireless charging device 100, and also helps to realize the miniaturization of the wireless charging device 100, and helps to reduce the case that the distribution of the circuit board assembly 15, the fan 16, the heat dissipation member 14, and the battery 17 along the same straight line leads to the large volume of the wireless charging device 100.

[0063] Please refer to Figure 2 , Figure 8 and Figure 9 In some embodiments, the heat conduction member 13 can include a heat conduction portion 131 connected to the coil assembly 12, the shape of the heat conduction portion 131 is adapted to the shape of the coil assembly 12, and the area of the heat conduction portion 131 is equal to the area of the coil assembly 12.

[0064] In this way, it helps to ensure that the heat conduction portion 131 has sufficient area to conduct heat from the coil assembly 12, and also helps to reduce the consumption of the heat conduction member 13, and helps to save manufacturing costs.

[0065] For example, the coil assembly 12 can have a circular shape, and the heat conduction portion 131 also has a circular shape, and the circular coil assembly 12 and the circular heat conduction portion 131 have equal areas. For another example, the coil assembly 12 can have a rectangular shape, and the heat conduction portion 131 also has a rectangular shape, and the rectangular coil assembly 12 and the rectangular heat conduction portion 131 have equal areas. The specific arrangement can be set according to actual conditions.

[0066] In some embodiments, the heat-conducting member 13 can further comprise a heat-conducting extension 132 connected to the heat-conducting part 131, the heat-conducting extension 132 being connected to the heat-dissipating member 14, the heat-conducting extension 132 and part of the heat-conducting part 131 completely covering the heat-dissipating member 14. For example, the heat-conducting extension 132 is arranged at the outer periphery of the heat-conducting part 131, connected to part of the heat-conducting part 131, forming a connecting part capable of covering the heat-dissipating member 14, the connecting part having the same shape and size as the connecting surface of the heat-dissipating member 14, so that the heat-conducting member 13 has better heat-conducting effect. In another embodiment, the heat-conducting extension 132 is connected to the outer side of the heat-conducting part 131, the heat-conducting extension 132 having the same shape and size as the connecting surface of the heat-dissipating member 14, only the heat-conducting extension 132 being connected to the heat-dissipating member 14, completely covering the heat-dissipating member 14, and the shape and size of the heat-conducting extension 132 are not limited herein.

[0067] In this way, the heat-dissipating member 14 and the heat-conducting member 13 have sufficient contact area, the heat-conducting member 13 can conduct the heat of the coil assembly 12 to the heat-dissipating member 14, and the heat-dissipating member 14 has better heat-dissipating effect on the heat-conducting member 13.

[0068] In some embodiments, the wireless charging device 100 further comprises a fixing member 18 arranged in the shell 11, the fixing member 18 being connected to the side of the heat-conducting part 131 away from the heat-conducting extension 132, and the fixing member 18 is spaced apart from the battery 17.

[0069] In this way, the fixing member 18 can be stably arranged in the shell 11, the heat-conducting member 13 is less likely to be detached from the shell 11, the fixing member 18 is less likely to contact the battery 17, the heat of the battery 17 is less likely to be conducted to the heat-conducting member 13 and the coil assembly 12 through the fixing member 18, and there can be a gap between the fixing member 18 and the battery 17 to allow air flow, so that air can flow through the gap between the fixing member 18 and the battery 17 to take away the heat of the battery 17 and cool the battery 17.

[0070] In summary, the wireless charging device 100 provided by the embodiment of the present application, the coil assembly 12, the heat conduction member 13, the heat dissipation member 14 and the circuit board assembly 15 of the wireless charging device 100 are all assembled in the shell 11, the heat conduction member 13 is connected to the coil assembly 12, one side of the heat dissipation member 14 is connected to the side of the heat conduction member 13 away from the coil assembly 12, and the other side of the heat dissipation member 14 is connected to the circuit board assembly 15. In this way, the heat conduction member 13 can conduct the heat of the coil assembly 12 to the heat dissipation member 14, the heat dissipation member 14 can dissipate heat for the coil assembly 12 and the circuit board assembly 15, which helps to improve the heat dissipation effect of the coil assembly 12 and the circuit board assembly 15, helps to ensure that the coil assembly 12 and the circuit board assembly 15 can be in a suitable temperature environment, helps to ensure that the wireless charging device 100 can run smoothly, and the wireless charging device 100 can realize heat dissipation for the coil assembly 12 and the circuit board assembly 15 by arranging a single heat dissipation member 14, which helps to simplify the structure of the wireless charging device 100 and helps to save manufacturing costs.

[0071] In the embodiments of the present application, unless otherwise explicitly specified or limited, the term "assembly" and the like should be understood in a broad sense. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or communication within two elements, or only surface contact, or surface contact connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0072] In addition, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the embodiments of the present application. In the embodiments of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the embodiments of the present application and the features of different embodiments or examples without contradiction.

[0073] The above embodiments are only used to illustrate the technical solutions of the utility model, and are not intended to limit the utility model; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the utility model, and should be included in the protection scope of the embodiments of the utility model.

Claims

1. A wireless charging device, characterized by, The wireless charging device comprises: a housing; a coil assembly, a heat dissipation member, a circuit board assembly, a heat conduction member and a magnetic isolation member, the coil assembly, the heat dissipation member and the circuit board assembly are assembled in the housing, the heat conduction member is connected with the coil assembly, and the magnetic isolation member is arranged between the heat conduction member and the coil assembly; one side of the heat dissipation member is attached to the side of the heat conduction member away from the coil assembly, and the other side of the heat dissipation member is attached to the circuit board assembly. The coil assembly, the heat conduction member, the heat dissipation member and the circuit board assembly are distributed along the height direction of the wireless charging device.

2. The wireless charging device of claim 1, wherein, The wireless charging device further comprises a fan, the fan is assembled in the housing, the fan has an air inlet and an air outlet, the heat dissipation member has a heat dissipation channel, and the heat dissipation channel is in communication with the air inlet or the air outlet. 3.The wireless charging device of claim 1 or 2, wherein, The fan and the circuit board assembly are spaced apart along the width direction of the wireless charging device.

4. The wireless charging device of claim 3, wherein, The circuit board assembly comprises a first sub-board and a second sub-board, the first sub-board and the second sub-board are arranged oppositely and define a heat dissipation air duct, and the heat dissipation air duct is in communication with the air inlet or the air outlet.

5. The wireless charging device of claim 3, wherein, The heat dissipation air duct and the heat dissipation channel are spaced apart along the height direction of the wireless charging device.

6. The wireless charging device of claim 5, wherein, The housing comprises a first air inlet and a second air inlet which are spaced apart, the first air inlet is arranged opposite to the heat dissipation member and is in communication with the heat dissipation channel, and the second air inlet is arranged opposite to the circuit board assembly and is in communication with the heat dissipation air duct.

7. The wireless charging device of claim 5, wherein, The heat dissipation member comprises a heat sink and a cover plate, the heat sink comprises a main plate and heat dissipation fins, the heat dissipation fins are connected to the surface of the main plate, the cover plate is arranged on the side of the heat dissipation fins away from the main plate, and the heat dissipation fins, the main plate and the cover plate enclose the heat dissipation channel, the main plate is connected to the side of the heat conduction member away from the coil assembly, and the cover plate is connected to the circuit board assembly.

8. The wireless charging device of claim 3, wherein, The wireless charging device further comprises a battery, the battery is assembled in the housing, the battery is spaced apart from the fan; and / or, the battery is spaced apart from the heat dissipation member; and / or, the battery is spaced apart from the circuit board assembly.

9. The wireless charging device of claim 3, wherein, The circuit board assembly, the fan and the heat dissipation member are located on the same side of the battery.

10. The wireless charging device of claim 9, wherein, The heat conduction member comprises a heat conduction part, the heat conduction part is connected to the coil assembly, and the shape of the heat conduction part is adapted to the shape of the coil assembly.

11. The wireless charging device of claim 1, wherein, The heat conduction member further comprises a heat conduction extension part, the heat conduction extension part is connected to the heat conduction part, the heat conduction extension part is connected to the heat dissipation member, and the heat conduction extension part and part of the heat conduction part completely cover the heat dissipation member; or the heat conduction extension part completely covers the heat dissipation member.

12. The wireless charging device of claim 11, wherein, ​

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