CN211480950U - Wireless charging equipment - Google Patents
Wireless charging equipment Download PDFInfo
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- CN211480950U CN211480950U CN201922143665.9U CN201922143665U CN211480950U CN 211480950 U CN211480950 U CN 211480950U CN 201922143665 U CN201922143665 U CN 201922143665U CN 211480950 U CN211480950 U CN 211480950U
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- air inlet
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- charging device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a wireless charging device, which comprises a shell, a coil module, a fan and a circuit assembly. The shell is provided with a first air inlet, a second air inlet and an air outlet. The coil module is positioned in the shell. The fan is positioned in the shell and is arranged at intervals with the coil module. The circuit component is positioned on one side of the fan, which is back to the coil module, and a gap exists between the circuit component and the fan. When the fan works, the air flow is driven to enter the shell from the first air inlet and flow out from the air outlet to form a first air channel flowing through the coil module; and driving the air flow to enter the shell from the second air inlet and flow out from the air outlet to form a second air channel flowing through the gap. Many heat dissipation wind channels can improve wireless charging device's radiating efficiency, can support the wireless charging of high power.
Description
Technical Field
The application relates to the technical field of charging, in particular to wireless charging equipment.
Background
Traditional wireless charging equipment's radiating efficiency is lower, and when giving the battery charging outfit and carrying out wireless charging, wireless charging equipment produced heat and makes its temperature rise, and wireless charging equipment can reduce charging efficiency after generating heat.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a wireless charging device, so as to solve the technical problem that the heat dissipation efficiency of the wireless charging device is low.
A wireless charging device, comprising:
the shell is provided with a first air inlet, a second air inlet and an air outlet;
the coil module is positioned in the shell;
the fan is positioned in the shell and is arranged at intervals with the coil module; and
the circuit assembly is positioned on one side of the fan, which is back to the coil module, and a gap is formed between the circuit assembly and the fan;
when the fan works, the fan drives airflow to enter the shell from the first air inlet and flow out from the air outlet to form a first air channel flowing through the coil module; and driving the airflow to enter the shell from the second air inlet and flow out from the air outlet to form a second air duct flowing through the gap.
The wireless charging equipment comprises two heat dissipation air channels which are respectively a first air channel and a second air channel. Airflow enters the shell from the first air inlet, sequentially flows through the coil module and the fan, is exhausted out of the shell from the air outlet, forms a first air channel and takes away heat of the coil module; the air current gets into in the shell from the second air intake and flows through gap and the fan between fan and the circuit subassembly in proper order to outside the shell is discharged to the air outlet, form the second wind channel, and take away the heat of circuit subassembly. Many heat dissipation wind channels can improve wireless charging device's radiating efficiency, can support the wireless charging of high power.
In one embodiment, the coil module is provided with a first through hole, and the airflow can flow through the first through hole after entering the housing from the first air inlet.
In one embodiment, the housing includes a first cover and a second cover, the first cover covers the second cover to form an accommodating space, and the coil module, the fan and the circuit assembly are sequentially disposed in the accommodating space; the first air inlet is located on the first cover body, and the second air inlet and the air outlet are located on the second cover body.
In one embodiment, the air conditioner comprises a supporting element arranged on the outer surface of the first cover body, and the first air inlet is positioned in an area surrounded by the supporting element; the supporting element is used for supporting the device to be charged, and part of the structure of the supporting element is covered by the device to be charged.
In one embodiment, the coil module comprises a heat sink, and the coil module is fixed on one side of the heat sink facing the first cover body.
In one embodiment, the fan is fixed on one side of the heat sink facing the second cover.
In one embodiment, the heat sink is provided with a second through hole, and the airflow can flow through the second through hole after entering the housing from the first air inlet.
In one embodiment, the coil module is provided with a first through hole, the first air inlet comprises a central opening, and the central opening, the first through hole and the second through hole are coaxial;
when the fan works, airflow enters the shell from the central opening and sequentially flows through the first through hole, the second through hole, the fan and the air outlet to form the first air channel.
In one embodiment, the first air inlet comprises a central opening and a ring opening, and the ring opening surrounds the central opening; the radiator is provided with an air guide opening, and the air guide opening is positioned on one side of the second air inlet;
when the fan works, airflow enters the shell from the annular opening and sequentially flows through the air guide opening, the fan and the air outlet to form a third air channel.
In one embodiment, the fan is provided with a first air inlet and a side air inlet; the first air inlet is positioned on one side of the fan, which faces the coil module, and the side air inlet is positioned on one side of the fan, which faces the air outlet; and the air flow entering the shell from the annular opening enters the fan from the first air inlet and flows to the air outlet through the side air inlet.
In one embodiment, the fan is provided with a first air inlet, the first air inlet is located on one side of the fan facing the coil module, and the air flow entering the housing from the first air inlet enters the fan from the first air inlet.
In one embodiment, the fan is provided with a second air inlet, the second air inlet is located on one side of the fan facing the circuit assembly, and the air flow entering the housing from the second air inlet enters the fan from the second air inlet.
In one embodiment, the number of the second air inlets is multiple.
In one embodiment, the fan is provided with a side air inlet facing the air outlet, and the air flow flowing into the first air inlet and the second air inlet flows to the air outlet from the side air inlet.
In one embodiment, the circuit assembly includes a circuit board located on a side of the circuit assembly facing the fan, and the circuit board and the fan form the gap therebetween.
In one embodiment, the circuit assembly includes a shielding cover, the shielding cover is located on a side of the circuit board facing away from the fan, and the shielding cover is attached to the second cover body.
In one embodiment, a heat storage material is attached to the surface of the coil module or the circuit component.
In one embodiment, the surface of the coil module or the circuit assembly is adhered with a heat insulating material.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a wireless charging device according to an embodiment;
fig. 2 is a schematic diagram of the wireless charging device shown in fig. 1 for charging a device to be charged;
fig. 3 is a top view of the wireless charging device shown in fig. 1;
fig. 4a is a perspective view of a section a-a of the wireless charging device shown in fig. 3;
fig. 4b is an enlarged view of the structure of the part M of the wireless charging device shown in fig. 4 a;
fig. 4c is an enlarged view of the N-part structure of the wireless charging device shown in fig. 4 a;
fig. 4d is a perspective view of a section a-a of the wireless charging device of fig. 3, with a first air duct labeled;
fig. 4e is a perspective view of a section a-a of the wireless charging device of fig. 3, with a second air duct labeled;
fig. 4f is a perspective view of a section a-a of the wireless charging device of fig. 3, with a third air duct labeled;
fig. 5a is an exploded view of the wireless charging device of fig. 1 in one embodiment;
fig. 5b is an exploded view of the wireless charging device of fig. 1 in another embodiment;
fig. 6 is a perspective view of a first cover of the wireless charging device shown in fig. 1;
fig. 7 is a perspective view of a coil module of the wireless charging device shown in fig. 5 b;
fig. 8 is a perspective view of the heat sink of the wireless charging device shown in fig. 5b from a perspective view;
fig. 9 is a perspective view of the heat sink of the wireless charging device shown in fig. 5b from another perspective;
fig. 10 is a perspective view of the wireless charging device of fig. 5b with the heat sink and fan mounted together;
fig. 11 is a perspective view of the fan of the wireless charging device shown in fig. 5b from a viewing angle;
fig. 12 is a perspective view of the fan of the wireless charging device shown in fig. 5b from another perspective;
fig. 13 is a perspective view of the circuit components of the wireless charging device shown in fig. 5b from a perspective view;
fig. 14 is a perspective view of the circuit components of the wireless charging device shown in fig. 5b from another perspective;
fig. 15 is a perspective view of the heat sink and circuit assembly of the wireless charging device of fig. 5b mounted together;
fig. 16 is a perspective view of a second cover of the wireless charging device shown in fig. 5b from a viewing angle;
fig. 17 is a bottom view of the second cover of the wireless charging device shown in fig. 5 b.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1 and fig. 2, in an embodiment, a wireless charging device 10 is provided, where the wireless charging device 10 has a plurality of air ducts capable of dissipating heat, and the heat dissipation effect is good. When this wireless charging device 10 treats charging device 20 and charges, a plurality of heat dissipation wind channels not only can reduce the temperature of self, and the air current can flow through the one side of treating charging device 20 towards wireless charging device 10 for the temperature of treating charging device 20 can reduce.
As shown in fig. 5a, in one embodiment, the wireless charging device 10 includes a housing 100 and a coil module 200, a heat sink 300, a fan 400 and a circuit assembly 500 located within the housing 100.
As shown in fig. 4a and 5b, in an embodiment, the housing 100 includes a first cover 110 and a second cover 120, and the first cover 110 and the second cover 120 form a receiving space of the wireless charging device 10 when they are closed. In one embodiment, the first cover 110 is a plate-shaped structure, the second cover 120 is a plate-shaped structure with an opening, and the second cover 120 has a certain depth. The first cover 110 covers the second cover 120, so that the wireless charging device 10 has an accommodating space. In the accommodating space, the coil module 200, the heat sink 300, the fan 400, and the circuit assembly 500 are sequentially disposed.
As shown in fig. 4 a-4 c, in one embodiment, a gap 440 exists between the fan 400 and the circuit assembly 500. The first cover 110 has a first air inlet 111, and the second cover 120 has a second air inlet 121 and an air outlet 122. When the fan 400 works, air (airflow) is driven to enter from the first air inlet 111 and flow out from the air outlet 122, so as to form a first air duct 11 (see fig. 4d) flowing through the coil module 200; and the air is driven to enter from the second air inlet 121 and flow out from the air outlet 122, so as to form a second air duct 12 (refer to fig. 4e) flowing through the gap 440. The air flow in the first air duct 11 flows through the coil module 200, so that the temperature of the coil module 200 can be reduced. The airflow of the second air duct 12 passes through the gap 440 between the fan 400 and the circuit assembly 500, and the temperature of the circuit assembly 500 can be reduced. Compared with a single heat dissipation air duct, the heat dissipation effect of the embodiment is better.
It can be understood that the shape and size of the second air inlet 121 and the second air outlet 122 may be the same or different, and the second air inlet 121 and the second air outlet 122 have different positions, so that the second air inlet 121 has an air inlet function and the second air outlet 122 has an air outlet function.
As shown in fig. 2 to 4a, in one embodiment, the surface of the first cover 110 is provided with a supporting element 114, and in one embodiment, the supporting element 114 is an annular rib. The first air inlet 111 is located in an area surrounded by the support member 114. The area enclosed by the support element 114 may be circular, oval, square, or the like, for supporting the device to be charged 20. When the device to be charged 20 is placed on the first cover 110, part of the structure of the supporting element 114 is covered by the device to be charged 20, i.e., at least part of the area surrounded by the supporting element 114 is not covered by the device to be charged 20. The airflow in the environment may enter the exposed area of the area enclosed by the support member 114 and enter the inside of the wireless charging device 10 through the first air inlet 111. By the operation of the fan 400, the airflow in the environment continuously enters the area not covered by the device to be charged 20 in the area enclosed by the supporting element 114, and the device to be charged 20, the supporting element 114 and the first air inlet 111 together form a vortex pressurization effect on the side of the device to be charged 20 facing the wireless charging device 10, so that the temperature of the side of the device to be charged 20 facing the wireless charging device 10 can be reduced.
As shown in FIGS. 4a and 6, in one embodiment, the first intake vent 111 includes a central opening 112 and an annular opening 113 surrounding the central opening 112. The first cover 110 is a circular plate-shaped structure, the central opening 112 is located at the center of the first cover 110, and the annular opening 113 is located at the periphery of the central opening 112. The annular opening 113 may be an arc-shaped strip-shaped opening, a square opening, or an opening with other shapes, and is not limited herein. The central aperture 112 and the annular aperture 113 are both located within the area enclosed by the support member 114.
As shown in fig. 4a, 5b and 7, in an embodiment, a first through hole 210 is formed in the center of the coil module 200, external air flows into the housing 100 from the central opening 112, and flows through the first through hole 210 and then enters the fan 400, and the rotation of the fan blades of the fan 400 causes the air flow to exit the wireless charging module through the air outlet 122, so as to form a first air duct 11 and take away heat of the coil module 200.
As shown in fig. 4a, 5b and 8, in one embodiment, the heat sink 300 is located between the coil module 200 and the fan 400. The coil module 200 is fixed to the heat sink 300 on a side facing the first cover 110, and the fan 400 is fixed to the heat sink 300 on a side facing the second cover 120. A first receiving groove 320 is disposed on a side of the heat sink 300 facing the coil module 200, and a second through hole 310 is disposed at a bottom of the first receiving groove 320. In one embodiment, the first receiving groove 320 is a circular groove, and the edge of the coil module 200 is circular, so that the coil module 200 can be received in the first receiving groove 320. The first through hole 210 is located within the range of the second through hole 310, so that the air flow can flow from the second through hole 310 to the fan 400 after flowing through the first through hole 210. In one embodiment, the first through hole 210 and the second through hole 310 are circular holes, the central opening 112, the first through hole 210 and the second through hole 310 are coaxial, and the diameter of the first through hole 210 is smaller than the diameter of the second through hole 310. The second through hole 310 has a larger diameter, so that the airflow in the first through hole 210 can flow into the fan 400 through the second through hole 310, and the area of the lamination of the coil module 200 and the heat sink 300 is reduced, so that the coil module 200 can easily dissipate heat.
As shown in fig. 4a, in an embodiment, when the fan 400 operates, the external air flow enters the casing 100 from the central opening 112, sequentially flows through the first through hole 210, the second through hole 310 and the fan 400, and is exhausted out of the casing 100 from the air outlet 122, so as to form the first air channel 11, so as to carry away heat of the coil module 200.
As shown in fig. 9 and 10, in one embodiment, the heat sink 300 is located between the coil module 200 and the fan 400. The heat sink 300 may be adhered to the inner surface of the second cover 120, or may be fixed to the second cover 120 by bolts or screws. The side of the heat sink 300 facing the fan 400 is provided with a second receiving groove 330, the fan 400 can be received in the second receiving groove 330, and the fan 400 is fixed in the second receiving groove 330 by screws or bolts. In an embodiment, the second receiving groove 330 is provided with a plurality of protruding columns 360 therein, the number of the protruding columns 360 is plural, when the fan 400 is installed in the second receiving groove 330, a gap 340 exists between the fan 400 and the bottom of the second receiving groove 330, and the depth of the gap 340 is the height of the protruding columns 360. The gap 340 between the fan 400 and the second receiving groove 330 allows an air flow to flow therethrough into the fan 400.
As shown in fig. 8 to 10, in an embodiment, one side of the heat sink 300 is a sealing structure, and one side of the heat sink is provided with a plurality of air guiding openings 350, and the air guiding openings 350 and the protruding columns 360 are arranged at intervals. When the fan 400 is installed in the second receiving groove 330, the convex pillar 360 enables a gap 340 to exist between the fan 400 and the heat sink 300, and the gap 340 is communicated with the air guiding opening 350. The annular opening 113, the air guiding opening 350, the gap 340, the fan 400 and the air outlet 122 form a third air duct 13 (refer to fig. 4 f). When the fan 400 works, the airflow in the environment enters the inside of the casing 100 through the annular opening 113, enters the gap 340 between the heat sink 300 and the fan 400 through the air guiding opening 350, and then enters the inside of the fan 400, and through the operation of the fan blades of the fan 400, the airflow in the third air duct 13 is discharged out of the casing 100 through the air outlet 122, so as to take away the heat in the casing 100. It can be understood that one side of the heat sink 300 close to the air outlet 122 is a sealing structure, specifically, the heat sink 300 is not provided with the air guiding opening 350, so as to prevent external air flow from directly flowing out of the air outlet 122 after entering the housing from the central opening 112 or the annular opening 113.
In one embodiment, the heat sink 300 is made of metal, such as aluminum, iron, steel, or a heat conductive alloy. The heat sink 300 contacts the coil module 200, and can conduct heat of the coil module 200 to the environment, so as to facilitate heat dissipation of the coil module 200.
As shown in fig. 11 and 12, in an embodiment, the blades of the fan 400 are hidden, but there are blades inside the fan 400. The fan 400 is provided with a first air inlet 410, a second air inlet 420 and a side air inlet 430. The first air inlet 410 is located on a side of the fan 400 facing the heat sink 300, and the first air inlet 410 is circular and has a size matching the second through hole 310, i.e. the diameter of the first air inlet 410 is equal to or substantially equal to the diameter of the second through hole 310. The side air opening 430 is opened at a side surface of the fan 400, and the opening is toward the air outlet 122, so that air discharged when the fan 400 operates can flow to the air outlet 122 through the side air opening 430, and is discharged out of the casing 100, and takes away heat in the casing 100. The second air inlets 420 are opened at a side of the fan 400 facing away from the heat sink 300, and the number of the second air inlets 420 is plural, and the shape may be a regular circle, square or arc, or an irregular opening, which is not limited herein.
In an embodiment, the side of the heat sink 300 that is a sealed structure is provided with a wind deflector 380, and the wind deflector 380 is located on the side of the heat sink 300 that faces away from the coil module 200. An airflow channel is formed between the adjacent air deflectors 380, one end of the airflow channel is abutted to the side air opening 430, and the other end of the airflow channel is abutted to the air outlet 122, so that the airflow flowing out of the side air opening 430 can circulate in the airflow channel and flow to the air outlet 122. The air flow flowing out from the side air vent 430 absorbs heat of the coil module 200, the circuit assembly 500, and the like, and has a temperature higher than that of the outside air. The air deflector 380 can guide the flow direction of the airflow flowing out from the side air inlet 430, and guide the airflow to the air outlet 122, so as to prevent the airflow flowing out from the side air inlet 430 from flowing irregularly in the housing 100, thereby affecting the heat dissipation of the wireless charging device 10.
As shown in fig. 4a, in an embodiment, when the fan 400 operates, external airflow enters the housing 100 from the central opening 112, sequentially flows through the first through hole 210, the second through hole 310, the first air inlet 410 and the side air inlet 430, and is exhausted out of the housing 100 from the air outlet 122, so as to form a first air channel 11 and take away heat of the coil module 200; the external air flow enters the casing 100 from the second air inlet 121, sequentially flows through the gap 440 between the fan 400 and the circuit assembly 500, the second air inlet 420 and the side air inlet 430, and is exhausted out of the casing 100 from the air outlet 122, so as to form a second air duct 12 and take away heat of the circuit assembly 500; the external air flow enters the casing 100 from the annular opening 113, sequentially flows through the air guiding opening 350, the gap 340 between the fan 400 and the heat sink 300, the first air inlet 410 and the side air inlet 430, and is discharged out of the casing 100 from the air outlet 122, forming a third air duct 13, and takes away the heat of the heat sink 300. When the fan 400 is operated, the first air duct 11, the second air duct 12 and the third air duct 13 exist at the same time, so that heat in the casing 100 can be quickly exhausted out of the casing 100, and the supporting element 114, the first air inlet 111 and the side of the device to be charged 20 facing the wireless charging device 10 form a vortex pressurization effect together, so that the device to be charged 20 can quickly dissipate heat.
As shown in fig. 13-15, in one embodiment, circuit assembly 500 includes a circuit board 510 and a shield 520 connected to one another. The circuit board 510 is located on a side of the circuit assembly 500 facing the first cover 110, the shielding cover 520 is located on a side of the circuit assembly 500 facing the second cover 120, the shielding cover 520 and a bottom of the second cover 120 may be attached to each other, and a filling material may also be provided, so that an airflow cannot flow between the shielding cover 520 and the bottom of the second cover 120, and the airflow is prevented from flowing to the air outlet 122 directly from between the shielding cover 520 and the bottom of the second cover 120 after entering the housing 100 from the second air inlet 121. The input cable 600 penetrates through the second cover 120 and enters the housing 100, the circuit board 510 is connected to the input cable 600, and the circuit board 510 is electrically connected to electronic components inside the housing 100, such as the coil module 200 and the fan 400, so that the external power source can supply power to the circuit board 510, the coil module 200 and the fan 400.
In one embodiment, the circuit assembly 500 is fixedly connected to the heat sink 300 by bolts or screws. The circuit assembly 500 covers the second receiving groove 330, such that the fan 400 is located between the groove bottom of the second receiving groove 330 and the circuit board 510, and a gap 340 exists between the fan 400 and the groove bottom of the second receiving groove 330 due to the support of the convex pillar 360, and the gap 340 is communicated with the air guiding opening 350. And a gap 440 exists between the fan 400 and the circuit board 510. When the fan 400 works, the external air flow sequentially flows through the air guiding opening 350, the gap 340 between the fan 400 and the bottom of the second accommodating groove 330, the first air inlet 410 and the side air inlet 430 through the annular opening 113 and is exhausted out of the housing 100 through the air outlet 122 to form a third air channel 13; the external air flow passes through the second air inlet 121, sequentially passes through the gap 440 between the fan 400 and the circuit board 510, the second air inlet 420 and the side air inlet 430, and is exhausted out of the housing 100 through the air outlet 122, so as to form the second air duct 12.
As shown in fig. 16 and 17, in an embodiment, the second air inlet 121 and the second air outlet 122 are strip-shaped openings formed on a side wall of the second cover 120, and the number of the strip-shaped openings is multiple and surrounds a circumference of the side wall of the second cover 120. When the fan 400 works, airflow enters a part of the strip-shaped opening, which is close to the gap 440 between the fan 400 and the circuit board 510, and the strip-shaped opening, which is close to the gap 440 and has airflow entering, is defined as a second air inlet 121; the portion of the strip-shaped opening near the side air opening 430 has airflow flowing out, and the strip-shaped opening near the side air opening 430 and having airflow flowing out is defined as the air outlet 122. It should be understood that the strip-shaped openings may surround a circumference of the sidewall of the second cover 120, or may be distributed as several strip-shaped openings, but it is required that the fan 400 operates such that air flows into the housing 100 and flows through the gap 440 between the fan 400 and the circuit board 510, and that air flows out of the housing 100 through the strip-shaped openings.
In an embodiment, a heat storage material is attached to a surface of at least one of the coil module 200 and the circuit assembly 500, and the heat storage material can absorb heat, so that the temperature of the coil module 200 or the circuit assembly 500 is slowly increased, thereby preventing the coil module 200 or the circuit assembly 500 from generating a high temperature phenomenon.
In one embodiment, a thermal insulation material is attached to a surface of at least one of the coil module 200 and the circuit assembly 500, so that heat of the coil module 200 or the circuit assembly 500 can be transferred in a fixed direction, thereby facilitating heat dissipation, and preventing the coil module 200 or the circuit assembly 500 from transferring heat toward other heat generating elements.
The wireless charging device 10 comprises three heat dissipation air ducts, namely a first air duct 11, a second air duct 12 and a third air duct 13. External airflow enters the housing 100 from the central opening 112, sequentially flows through the first through hole 210, the second through hole 310, the first air inlet 410 and the side air inlet 430, and is exhausted out of the housing 100 from the air outlet 122, so as to form a first air duct 11 and take away heat of the coil module 200; the external air flow enters the housing 100 from the second air inlet 121, sequentially flows through the gap 440 between the fan 400 and the circuit assembly 500, the second air inlet 420 and the air measuring port, and is discharged out of the housing 100 from the air outlet 122, so as to form a second air duct 12 and take away heat of the circuit assembly 500; the external air flow enters the housing 100 from the annular opening 113, sequentially flows through the air guiding opening 350, the gap 340 between the fan 400 and the bottom of the second accommodating groove 330, the first air inlet 410 and the side air inlet 430, and is exhausted out of the housing 100 from the air outlet 122, so as to form a third air duct 13 and take away the heat of the heat sink 300.
The plurality of heat dissipation air channels can improve the heat dissipation efficiency of the wireless charging device 10, and can support high-power wireless charging. The central opening 112 and the annular opening 113 of the first cover 110 provide air inlets for the first air duct 11 and the second air duct 12. The design of the supporting element 114, the central opening 112 and the annular opening 113 enables a vortex pressurization effect to be formed between the side of the device to be charged 20 facing the wireless charging device 10 and the wireless charging device 10, so that the device to be charged 20 can dissipate heat. The fan 400 has a first air inlet 410 at one side and a second air inlet 420 at the other side, and the design of the double air inlets enables the first air duct 11, the second air duct 12 and the third air duct 13 to form a complete heat dissipation path, respectively, wherein the air flow entering the housing 100 from the central opening 112 and the annular opening 113 flows through the first air inlet 410, and the air flow entering the housing 100 from the second air inlet 121 flows through the second air inlet 420.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (18)
1. A wireless charging device, comprising:
the shell is provided with a first air inlet, a second air inlet and an air outlet;
the coil module is positioned in the shell;
the fan is positioned in the shell and is arranged at intervals with the coil module; and
the circuit assembly is positioned on one side of the fan, which is back to the coil module, and a gap is formed between the circuit assembly and the fan;
when the fan works, the fan drives airflow to enter the shell from the first air inlet and flow out from the air outlet to form a first air channel flowing through the coil module; and driving the airflow to enter the shell from the second air inlet and flow out from the air outlet to form a second air duct flowing through the gap.
2. The wireless charging device of claim 1, wherein the coil module defines a first through hole, and an airflow entering the housing from the first air inlet can flow through the first through hole.
3. The wireless charging device of claim 1, wherein the housing comprises a first cover and a second cover, the first cover covers the second cover to form an accommodating space, and the coil module, the fan and the circuit assembly are sequentially disposed in the accommodating space; the first air inlet is located on the first cover body, and the second air inlet and the air outlet are located on the second cover body.
4. The wireless charging device of claim 3, comprising a support element disposed on an outer surface of the first cover, wherein the first air inlet is located in an area surrounded by the support element; the supporting element is used for supporting the device to be charged, and part of the structure of the supporting element is covered by the device to be charged.
5. The wireless charging device of claim 3, comprising a heat sink, wherein the coil module is fixed to a side of the heat sink facing the first cover.
6. The wireless charging apparatus of claim 5, wherein the fan is fixed to a side of the heat sink facing the second cover.
7. The wireless charging device of claim 5, wherein the heat sink defines a second aperture, and airflow entering the housing from the first air inlet can flow through the second aperture.
8. The wireless charging device of claim 7, wherein the coil module defines a first through hole, the first air inlet includes a central opening, and the central opening, the first through hole and the second through hole are coaxial;
when the fan works, airflow enters the shell from the central opening and sequentially flows through the first through hole, the second through hole, the fan and the air outlet to form the first air channel.
9. The wireless charging device of claim 5, wherein the first air inlet comprises a central opening and a ring opening, and the ring opening surrounds the central opening; the radiator is provided with an air guide opening, and the air guide opening is positioned on one side of the second air inlet;
when the fan works, airflow enters the shell from the annular opening and sequentially flows through the air guide opening, the fan and the air outlet to form a third air channel.
10. The wireless charging device of claim 9, wherein the fan defines a first air inlet and a side air inlet; the first air inlet is positioned on one side of the fan, which faces the coil module, and the side air inlet is positioned on one side of the fan, which faces the air outlet; and the air flow entering the shell from the annular opening enters the fan from the first air inlet and flows to the air outlet through the side air inlet.
11. The wireless charging device according to any one of claims 1 to 9, wherein the fan has a first air inlet, the first air inlet is located on a side of the fan facing the coil module, and an air flow entering the housing from the first air inlet enters the fan from the first air inlet.
12. The wireless charging device of claim 11, wherein the fan defines a second air inlet, the second air inlet is located on a side of the fan facing the circuit assembly, and the air flow entering the housing from the second air inlet enters the fan from the second air inlet.
13. The wireless charging device of claim 12, wherein the second air inlet is plural in number.
14. The wireless charging device of claim 12, wherein the fan defines a side air opening facing the air outlet, and the air flowing into the first air inlet and the second air inlet flows from the side air opening to the air outlet.
15. The wireless charging apparatus according to any one of claims 3 to 9, wherein the circuit assembly comprises a circuit board, the circuit board is located on a side of the circuit assembly facing the fan, and the gap is formed between the circuit board and the fan.
16. The wireless charging device of claim 15, wherein the circuit assembly comprises a shield on a side of the circuit board facing away from the fan, the shield being attached to the second cover.
17. The wireless charging device of any one of claims 1 to 9, wherein a heat storage material is attached to a surface of the coil module or the circuit assembly.
18. The wireless charging device according to any one of claims 1 to 9, wherein a heat insulating material is attached to a surface of the coil module or the circuit assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143665.9U CN211480950U (en) | 2019-12-02 | 2019-12-02 | Wireless charging equipment |
| PCT/CN2020/127483 WO2021109803A1 (en) | 2019-12-02 | 2020-11-09 | Wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143665.9U CN211480950U (en) | 2019-12-02 | 2019-12-02 | Wireless charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211480950U true CN211480950U (en) | 2020-09-11 |
Family
ID=72359537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922143665.9U Active CN211480950U (en) | 2019-12-02 | 2019-12-02 | Wireless charging equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211480950U (en) |
| WO (1) | WO2021109803A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737135A (en) * | 2020-12-29 | 2021-04-30 | 立讯电子科技（昆山）有限公司 | Wireless charging seat |
| WO2021109803A1 (en) * | 2019-12-02 | 2021-06-10 | Oppo广东移动通信有限公司 | Wireless charging device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230074238A1 (en) * | 2021-09-02 | 2023-03-09 | Molex Cvs Dabendorf Gmbh | Wireless charger with venting system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010026805A1 (en) * | 2008-09-03 | 2010-03-11 | 株式会社村田製作所 | Wireless power transmission device |
| CN202424237U (en) * | 2011-12-30 | 2012-09-05 | 深圳市沈氏彤创航天模型有限公司 | Internal heat radiation structure of charger |
| CN205724951U (en) * | 2016-03-28 | 2016-11-23 | 施京京 | A kind of wireless charging base with radiator structure |
| CN205670722U (en) * | 2016-05-04 | 2016-11-02 | 邢益涛 | A kind of wireless charging output device |
| CN112054570B (en) * | 2017-10-30 | 2022-05-31 | 华为终端有限公司 | Wireless charging equipment |
| CN109617152B (en) * | 2018-11-20 | 2022-10-25 | 安克创新科技股份有限公司 | Wireless charging device |
| CN211480950U (en) * | 2019-12-02 | 2020-09-11 | Oppo广东移动通信有限公司 | Wireless charging equipment |
-
2019
- 2019-12-02 CN CN201922143665.9U patent/CN211480950U/en active Active
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2020
- 2020-11-09 WO PCT/CN2020/127483 patent/WO2021109803A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109803A1 (en) * | 2019-12-02 | 2021-06-10 | Oppo广东移动通信有限公司 | Wireless charging device |
| CN112737135A (en) * | 2020-12-29 | 2021-04-30 | 立讯电子科技（昆山）有限公司 | Wireless charging seat |
| CN112737135B (en) * | 2020-12-29 | 2023-10-13 | 立讯电子科技（昆山）有限公司 | Wireless charging seat |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021109803A1 (en) | 2021-06-10 |
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