Vehicle-mounted wireless charger with heat dissipation structure

Abstract

The utility model discloses a vehicle-mounted wireless charger with a heat dissipation structure, which relates to the technical field of vehicle-mounted chargers and comprises a front shell, an NFC (near field communication) antenna, a support, a coil, a printed circuit board assembly, a rear shell, an outer air duct shell, a fan and a fan shell, the outer air duct shell is arranged above the rear shell, the fan is arranged on the fan shell, and the heat dissipation structure is arranged on the fan shell. The fan shell is connected with the outer air duct shell, the front shell is provided with an air outlet, the rear shell is provided with a splitter, the splitter splits air output by the fan to form two ventilation ducts, one ventilation duct cools charging equipment, and the other ventilation duct cools a charger; the wireless charger is low in heat dissipation cost, simple in structure, compact in layout and relatively small in size, effectively improves the heating and heat dissipation problems of the charger, improves the use performance of the wireless charger, and is favorable for guaranteeing and prolonging the service life of the wireless charger.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted chargers, in particular to a vehicle-mounted wireless charger with a heat dissipation structure. Background Art

[0002] At present, more and more cars on the market are equipped with vehicle-mounted wireless chargers for charging mobile phones, tablet computers, etc. There is a serious problem with vehicle-mounted chargers, that is, they generate a lot of heat during the charging process. Although the designed charging power of mainstream products can reach 15W, the mobile phone and the charger generate a lot of heat during the charging process, and the temperature rise causes the charging power to drop. Especially for high-power wireless chargers such as 50W and 80W, the high heat problem is serious.

[0003] Therefore, designing a vehicle-mounted wireless charger with a heat dissipation structure can improve the above problems. Summary of the Utility Model

[0004] In view of the above problems in the prior art, the utility model provides a vehicle-mounted wireless charger with a heat dissipation structure, which has good heat dissipation effect.

[0005] To achieve the above object, the technical solution adopted by the utility model is:

[0006] A vehicle-mounted wireless charger with a heat dissipation structure includes a front shell, an NFC antenna, a bracket, a coil, a printed circuit board assembly, a rear shell, an outer air duct shell, a fan, and a fan shell. The outer air duct shell is arranged above the rear shell. The fan is arranged on the fan shell, and the fan shell is connected to the outer air duct shell. An air outlet is provided on the front shell, and a flow splitter is provided on the rear shell. The flow splitter divides the air output by the fan into two ventilation ducts. One ventilation duct cools the charging device, and the other ventilation duct cools the charger.

[0007] Preferably, a heat-conducting silica gel is provided on the rear shell.

[0008] Preferably, a plurality of heat sinks are provided on the rear shell.

[0009] Preferably, the outer air duct shell includes a substrate and a wind shield connected to the substrate, and an air outlet duct is formed between the substrate and the wind shield.

[0010] Preferably, the flow splitter is arranged in the air outlet duct.

[0011] Preferably, the flow splitter is perpendicularly arranged to the heat sink.

[0012] Preferably, the air outlet forms an arc surface for guiding the wind direction.

[0013] Preferably, an arc surface for guiding the wind direction is formed at the root of the shunt piece.

[0014] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For a vehicle-mounted wireless charger with a heat dissipation structure of the present utility model, two ventilation ducts are formed to cool the charging device and the charger respectively, fully reducing the internal and external temperatures of the wireless charger, with low heat dissipation cost, effectively improving the heat generation and heat dissipation problems of the charger, increasing the charging power of the vehicle-mounted wireless charger, and avoiding the trouble that the charging power of the vehicle-mounted wireless charger is too low in summer and far from reaching the designed charging power;

[0016] 2. For a vehicle-mounted wireless charger with a heat dissipation structure of the present utility model, the structure is concise, the layout is compact, and the volume is relatively small, improving the use performance of the wireless charger and being beneficial to ensuring and prolonging the service life of the wireless charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Through the following description with reference to the drawings, and with a more comprehensive understanding of the present utility model, other objects and results of the present utility model will become more apparent and easier to understand. In the drawings:

[0018] Figure 1 is a perspective view of an embodiment of the present utility model;

[0019] Figure 2 is another perspective view of an embodiment of the present utility model;

[0020] Figure 3 is a side view of an embodiment of the present utility model;

[0021] Figure 4 is a front view of an embodiment of the present utility model;

[0022] Figure 5 is Figure 4 a sectional view taken along the line A-A in

[0023] Figure 6 is a perspective view of the combination of the rear housing and the outer air duct housing of an embodiment of the present utility model;

[0024] Figure 7 is a perspective view of the rear housing of an embodiment of the present utility model;

[0025] Figure 8 is an exploded view of an embodiment of the present utility model;

[0026] The reference numerals therein include: front housing 1, NFC antenna 2, bracket 3, coil 4, printed circuit board assembly 5, rear housing 6, outer air duct housing 7, fan 8, fan housing 9, thermal conductive silica gel 10, air outlet 11, arc surface 111, shunt piece 61, ventilation duct 611, ventilation duct 612, arc surface 613, heat sink 62, ventilation hole 63, substrate 71, wind baffle 72, air outlet duct 73. Detailed implementation manners

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. It should be pointed out that all the drawings are exemplary representations. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The present invention will be further described in detail below through specific implementation examples in combination with the drawings.

[0031] Referring to Figures 1 to 8 , Figure 1 is a perspective view of an embodiment of the present invention, Figure 2 is another perspective view of an embodiment of the present invention, Figure 3 is a side view of an embodiment of the present invention, Figure 4 is a front view of an embodiment of the present invention, Figure 5 is Figure 4Cross-sectional view taken along the A-A direction in the figure Figure 6 is a perspective view of the combination of the rear housing and the outer air duct housing of the embodiment of the present utility model Figure 7 is a perspective view of the rear housing of the embodiment of the present utility model Figure 8 is an exploded view of the embodiment of the present utility model; A vehicle-mounted wireless charger with a heat dissipation structure provided by the present utility model includes a front housing 1, an NFC antenna 2, a bracket 3, a coil 4, a printed circuit board assembly 5, a rear housing 6, an outer air duct housing 7, a fan 8, a fan housing 9, and a thermal conductive silicone 10; The NFC antenna 2 is pasted on the front housing 1, and the function of the NFC antenna 2 is to control electromagnetic interference and communication transmission. The coil 4 is pasted on the bracket 3, and the coil 4 is used to charge devices such as mobile phones and tablets. The thermal conductive silicone 10 is pasted on the rear housing 6, and the heat of the printed circuit board assembly 5 is conducted to the rear housing 6 by the thermal conductive silicone 10. The material of the rear housing 6 is preferably a metal material. The NFC antenna 2, the coil 4, and the fan 8 are connected to the printed circuit board assembly 5. The front housing 1 and the rear housing 6 are fixed by screws, and then the NFC antenna 2, the bracket 3, the coil 4, the printed circuit board assembly 5, and the thermal conductive silicone 10 are placed between the front housing 1 and the rear housing 6; The outer air duct housing 7 is installed above the rear housing 6 by screws. The fan 8 is installed on the fan housing 9, and the fan housing 9 and the outer air duct housing 7 are fixedly connected by screws.

[0032] An air outlet 11 is provided on the front housing 1, and an arc surface 111 for guiding the wind direction is formed on the air outlet 11. The arc surface 111 is preferably arranged on opposite sides of the air outlet 11 to guide the wind to output close to the surface of the front housing 1 to dissipate heat from the charging device placed above the front housing 1. A flow splitter 61 is provided on the rear housing 6. In the space formed by the fan housing 9, the outer air duct housing 7, the front housing 1, and the rear housing 6, the wind output by the fan 8 can be split into two ventilation ducts through the flow splitter 61 and the air outlet 11. One ventilation duct 611 cools the charging device, and the other ventilation duct 612 cools the charger.

[0033] A plurality of heat sinks 62 are provided on the rear housing 6. The heat sinks 62 are perpendicular to the rear housing 6, and the plurality of heat sinks 62 are parallel to each other. The flow splitter 61 is arranged on the rear housing 6 in front of one side of the heat sinks 62. A ventilation hole 63 is formed in the front part of the flow splitter 61 of the rear housing 6. The flow splitter 61 is perpendicular to the heat sinks 62. An arc surface 613 for guiding the wind direction is formed at the root of the flow splitter 61 facing the heat sinks 62 to blow the wind split by the flow splitter 61 onto the heat sinks 62, thereby cooling the charger.

[0034] The outer air duct housing 7 includes a base plate 71 and a wind baffle 72 connected to the base plate 71. The base plate 71 is fixedly connected to the rear housing 6 and is located above the heat sink 62 of the rear housing 6. An air outlet duct 73 is formed between the base plate 71 and the wind baffle 72. The two ends of the wind baffle 72 are respectively connected to the front part of the front housing 1 and the front part of the fan housing 9. The flow dividing fin 61 is arranged in the air outlet duct 73 and the height position of the flow dividing fin 61 is higher than that of the base plate 71, so as to divide the air output by the fan 8 starting from inside the fan housing 9.

[0035] The working principle of the present utility model will be described below with reference to Figures 1 to 8 .

[0036] When devices such as mobile phones and tablets start charging in the charging area, the fan 8 will start. The air output by the fan 8 will be separated into two air ducts by the flow dividing fin 61, namely the ventilation duct 611 and the ventilation duct 612. The ventilation duct 611 extends from between the flow dividing fin 61 and the wind baffle 72 to the air outlet 11, thereby cooling the charging device; the ventilation duct 612 extends towards the heat sink 62 between the flow dividing fin 61 and the base plate 71, cooling the heat of the electronic components, and thus realizing the cooling of the charger. Without increasing the cost and volume, the present utility model fully reduces the internal and external temperatures of the wireless charger.

[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A vehicle-mounted wireless charger with a heat dissipation structure, comprising a front housing, an NFC antenna, a bracket, a coil, a printed circuit board assembly, and a rear housing, characterized in that: It also includes an external air duct housing, a fan, and a fan housing. The external air duct housing is arranged above the rear housing, the fan is arranged on the fan housing, the fan housing is connected to the external air duct housing, the front housing is provided with an air outlet, and the rear housing is provided with a diverter. The diverter diverts the wind output by the fan to form two ventilation ducts, one of which cools down the charging device, and the other cools down the charger.

2. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 1, characterized in that: The rear shell is provided with heat-conducting silica gel.

3. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 1, characterized in that: The rear housing is provided with a plurality of heat sinks.

4. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 1, characterized in that: The outer air duct housing comprises a base plate and a wind shield plate connected to the base plate, and an air outlet duct is formed between the base plate and the wind shield plate.

5. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 4, characterized in that: The flow dividing sheet is arranged in the air outlet duct.

6. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 3, characterized in that: The diverter fin is arranged perpendicular to the heat sink fin.

7. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 1, characterized in that: The air outlet is formed with an arc surface for guiding the wind direction.

8. The vehicle-mounted wireless charger with a heat dissipation structure according to claim 1, characterized in that: The root of the diverter sheet is formed with an arc surface for guiding the wind direction.

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