Wireless charging device

Abstract

The utility model relates to wireless charging device technical field discloses a wireless charging device. Wherein wireless charging device includes upper shell, lower shell, cooling fan and wireless charging module, is provided with first air inlet on the upper shell, the lower shell can be buckled with the upper shell and forms module installation cavity, the lower shell is provided with second air inlet and air outlet still, second air inlet can communicate with first air inlet, and second air inlet and air outlet are provided with fan installation cavity between, cooling fan sets up in fan installation cavity, and cooling fan can drive air flow along the direction of first air inlet, second air inlet, air outlet, wireless charging module sets up in module installation cavity. The utility model discloses wireless charging device, and the cooling effect is better, and the work is more reliable.

Description

Technical Field

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

[0002] When the charging power of a wireless charging system reaches a certain level, the wireless charging base needs active heat dissipation and long-distance heat dissipation to ensure its normal operation. In existing technologies, insufficient heat dissipation capacity of the wireless charging base often leads to malfunction, affecting the use of wireless charging technology and severely impacting the user experience.

[0003] Therefore, there is an urgent need for a wireless charging device to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a wireless charging device with better cooling effect and more reliable operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Wireless charging device, including:

[0007] The upper shell has a first air inlet.

[0008] The lower shell can be fastened with the upper shell to form a module mounting cavity. The lower shell is also provided with a second air inlet and an air outlet. The second air inlet can communicate with the first air inlet, and a fan mounting cavity is provided between the second air inlet and the air outlet.

[0009] A cooling fan is disposed in the fan mounting cavity, and the cooling fan can drive air to flow along the direction of the first air inlet, the second air inlet, and the air outlet;

[0010] A wireless charging module is disposed within the module mounting cavity.

[0011] As a preferred embodiment of the wireless charging device, the wireless charging device is further provided with a fan housing, in which the fan mounting cavity is formed, and a clearance notch is provided on one side of the fan housing. The clearance notch and the lower housing form the air outlet, and the air outlet is at an angle to the axis of the cooling fan.

[0012] As a preferred embodiment of the wireless charging device, the wireless charging device is further provided with a connector, which is electrically connected to the wireless charging module and extends at least partially beyond the lower shell; the lower shell is further provided with a baffle wall, which is disposed between the air outlet and the connector.

[0013] As a preferred embodiment of the wireless charging device, the barrier is positioned close to the cooling fan, and a first airflow guiding surface is provided on the side close to the cooling fan, wherein the first airflow guiding surface is configured as an arc surface.

[0014] As a preferred embodiment of the wireless charging device, one of the lower shell and the fan shell is provided with a slot, and the other is provided with a block, wherein the block can be engaged in the slot.

[0015] As a preferred embodiment of the wireless charging device, the wireless charging device is further provided with a buffer layer, which is disposed between the lower shell and the fan shell.

[0016] As a preferred embodiment of the wireless charging device, a second air guide surface is provided between the second air inlet and the air outlet, and the second air guide surface is configured as an arc surface.

[0017] As a preferred embodiment of the wireless charging device, the wireless charging module includes a motherboard, an upper shielding cover, and a lower shielding cover, with the motherboard disposed within the shielding space formed by the upper shielding cover and the lower shielding cover fastening together.

[0018] As a preferred embodiment of the wireless charging device, the wireless charging module is further provided with a coil and an NFC board, both of which are electrically connected to the motherboard, with the coil disposed between the shielding cover and the NFC board.

[0019] As a preferred embodiment of the wireless charging device, one of the motherboard and the upper shield is provided with a flexible snap-fit ​​component, and the other is provided with a snap-fit ​​block. The snap-fit ​​block can snap with the flexible snap-fit ​​component to connect the upper shield and the motherboard; and / or, one of the motherboard and the lower shield is provided with a flexible snap-fit ​​component, and the other is provided with a snap-fit ​​block. The snap-fit ​​block can snap with the flexible snap-fit ​​component to connect the lower shield and the motherboard.

[0020] As a preferred embodiment of the wireless charging device, a cooling groove is provided on the side of the upper shell away from the lower shell, and the first air inlet is located at the bottom of the cooling groove; the cooling groove is provided with a guide protrusion extending toward the first air inlet.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention features an upper and lower shell that interlock to form a module mounting cavity for mounting a wireless charging module, enabling the wireless charging function of the device. The wireless charging device also includes a cooling fan for cooling, ensuring proper and safe operation. The upper shell has a first air inlet, and the lower shell has a second air inlet and an air outlet, with the second and first air inlets connected. The cooling fan is inverted and positioned within the fan mounting cavity between the second and air outlets. This configuration allows the cooling fan to drive airflow along the direction of the first, second, and air inlets when operating, utilizing the fan's suction force to enhance airflow and accommodate longer cooling distances while maintaining effective heat dissipation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the wireless charging device provided in a specific embodiment of this utility model;

[0025] Figure 2 This is a cross-sectional view of one location of the wireless charging device provided in a specific embodiment of this utility model;

[0026] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0027] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle;

[0028] Figure 5 This is a cross-sectional view of another location of the wireless charging device provided in a specific embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the hidden upper shell and NFC board of the wireless charging device provided in a specific embodiment of this utility model;

[0030] Figure 7 This is a schematic diagram of the lower shell of the wireless charging device provided in a specific embodiment of this utility model.

[0031] Figure 8This is a schematic diagram of the lower shell of the wireless charging device provided in a specific embodiment of this utility model from another perspective;

[0032] Figure 9 This is a schematic diagram of the cooling fan and fan housing of the wireless charging device provided in a specific embodiment of this utility model.

[0033] In the picture:

[0034] 100. Upper shell; 110. First air inlet; 120. Cooling groove; 121. Air guide protrusion; 130. Clamping lug; 131. Clamping hole;

[0035] 200. Lower shell; 201. Module mounting cavity; 210. Second air inlet; 211. Second air guide surface; 220. Air outlet; 230. Baffle; 231. First air guide surface; 240. Slot; 250. Positioning rib; 260. Snap-fit ​​protrusion; 261. Guide surface; 262. Snap-fit ​​surface; 270. Mounting port;

[0036] 300. Cooling fan;

[0037] 400 Wireless charging module; 410 Mainboard; 420 Upper shielding cover; 430 Lower shielding cover; 440 Coil; 450 NFC board; 460 Flexible snap-fit ​​assembly; 461 Snap-fit ​​piece; 462 Bending snap-fit ​​part; 470 Snap-fit ​​block; 480 Mounting plate;

[0038] 500. Fan housing; 501. Fan mounting cavity; 510. Clamping block; 520. Clearance notch;

[0039] 600. Connector;

[0040] 700, Buffer layer. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0043] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] like Figures 1-9As shown, this embodiment provides a wireless charging device, which includes an upper shell 100, a lower shell 200, a cooling fan 300, and a wireless charging module 400. The upper shell 100 is provided with a first air inlet 110; the lower shell 200 can be fastened to the upper shell 100 to form a module mounting cavity 201, and the lower shell 200 is also provided with a second air inlet 210 and an air outlet 220. The second air inlet 210 can communicate with the first air inlet 110, and a fan mounting cavity 501 is provided between the second air inlet 210 and the air outlet 220; the cooling fan 300 is disposed in the fan mounting cavity 501, and the cooling fan 300 can drive air to flow along the direction of the first air inlet 110, the second air inlet 210, and the air outlet 220; the wireless charging module 400 is disposed in the module mounting cavity 201.

[0047] The upper shell 100 and lower shell 200, which interlock to form a module mounting cavity 201, are used to mount the wireless charging module 400, thereby enabling the wireless charging function of the wireless charging device. Simultaneously, the wireless charging device is also equipped with a cooling fan 300 to provide a cooling effect, ensuring the normal and safe use of the wireless charging device. The upper shell 100 has a first air inlet 110, and the lower shell 200 has a second air inlet 210 and an air outlet 220. The second air inlet 210 is connected to the first air inlet 110. The cooling fan 300 is installed inverted within the fan mounting cavity 501 between the second air inlet 210 and the air outlet 220. This configuration allows the cooling fan 300 to drive airflow along the directions of the first air inlet 110, the second air inlet 210, and the air outlet 220 when it is operating. That is, the airflow is driven by the suction force of the cooling fan 300, resulting in stronger airflow dynamics, enabling it to adapt to a longer heat dissipation distance while ensuring better heat dissipation.

[0048] It is worth noting that, in order to allow air to flow along the directions of the first air inlet 110, the second air inlet 210, and the air outlet 220, the mounting base of the cooling fan 300 faces upwards and the fan blades face downwards. This generates a downward suction force when the cooling fan 300 rotates, driving the air to flow in a preset direction; that is, the cooling fan 300 is placed upside down within the fan mounting cavity 501. Additionally, the wireless charging device can be used to wirelessly charge electronic devices, such as mobile phones.

[0049] For example, the first air inlet 110 of the upper shell 100 is formed by a flange extending toward the lower shell 200, and the second air inlet 210 of the lower shell 200 is formed by a flange extending toward the upper shell 100. When the upper shell 100 and the lower shell 200 are fastened together, the two flanges can be sealed and snapped together to ensure that the air in the first air inlet 110 can completely enter the second air inlet 210, and to prevent air from entering the module mounting cavity 201 and affecting the normal operation of the wireless charging module 400.

[0050] Specifically, the wireless charging device also includes a fan housing 500, within which a fan mounting cavity 501 is formed. The fan housing 500 is located on the side of the lower housing 200 away from the upper housing 100, and the fan mounting cavity 501 faces the second air inlet 210. This arrangement, while facilitating the installation of the cooling fan 300, reduces the space occupied by the upper housing 100 and lower housing 200, thus improving the integration of the wireless charging device and making the wireless charging module 400 of the electronic device more compact. Furthermore, positioning the fan mounting cavity 501 towards the second air inlet 210 brings the installation position of the cooling fan 300 closer to the second air inlet 210, thereby reducing the airflow distance between the upper housing 100, lower housing 200, and fan housing 500, which improves the suction efficiency of the cooling fan 300 and thus enhances the cooling effect.

[0051] Optionally, to form the air outlet 220, a clearance notch 520 is provided on one side of the fan housing 500. When the fan housing 500 is disposed on the lower housing 200, the air outlet 220 is formed between the clearance notch 520 and the lower housing 200. It is worth noting that the air outlet 220 forms an angle with the axis of the cooling fan 300, that is, air flows out of the wireless charging device in a direction that forms an angle with the axis of the cooling fan 300.

[0052] Furthermore, the wireless charging device also includes a connector 600, which is electrically connected to the wireless charging module 400. The connector 600 is used to connect to a power supply device to supply power to the wireless charging module 400. To facilitate the connection between the connector 600 and the power supply device, the lower housing 200 is provided with a mounting opening 270. The connector 600 passes through the mounting opening 270 and extends at least partially out of the lower housing 200. It is worth noting that the lower housing 200 is also provided with a baffle 230, which is located between the air outlet 220 and the connector 600 and is integrally formed with the lower housing 200. By providing the baffle 230, the airflow direction at the air outlet 220 can be changed, preventing water drawn in with the air from being blown from the air outlet 220 to the connector 600, thus avoiding problems such as short circuits in the connector 600. This improves the waterproof rating, reliability, and safety of the wireless charging device.

[0053] Preferably, the baffle 230 is positioned close to the cooling fan 300, which helps to improve the shielding effect. At the same time, a first airflow guide surface 231 is provided on the side of the baffle 230 closest to the cooling fan 300. The first airflow guide surface 231 is set as an arc surface. This arrangement helps to reduce wind resistance and allows the airflow to flow more smoothly out of the wireless charging device, thereby improving cooling efficiency and cooling effect.

[0054] In this embodiment, a second guide surface 211 is provided between the second air inlet 210 and the air outlet 220. The second guide surface 211 is an arc surface. That is, the air entering the second air inlet 210 can pass through the second guide surface 211, the air outlet 220 and the first guide surface 231 in sequence under the suction force of the cooling fan 300, and finally flow out of the wireless charging device.

[0055] As an optional solution for wireless charging devices, to achieve the connection between the lower shell 200 and the fan shell 500, one of the lower shell 200 and the fan shell 500 is provided with a card slot 240, and the other is provided with a card block 510. The card block 510 can be connected to the card slot 240 to achieve the connection between the lower shell 200 and the fan shell 500.

[0056] Preferably, the wireless charging device further includes a buffer layer 700, which is disposed between the lower housing 200 and the fan housing 500. Specifically, when the locking block 510 is engaged in the slot 240, the buffer layer 700 can undergo elastic deformation to reduce the noise generated by the vibration of the cooling fan 300, thereby improving the user experience. For example, the buffer layer 700 is made of foam, which can be adhered to the lower housing 200 or the fan housing 500 with double-sided adhesive, or double-sided adhesive can be applied to both sides of the foam. This achieves cushioning and shock absorption while also improving the reliability of the connection between the lower housing 200 and the fan housing 500.

[0057] Specifically, the wireless charging module 400 includes a motherboard 410, an upper shielding cover 420, and a lower shielding cover 430. By placing the motherboard 410 within the shielding space formed by the upper shielding cover 420 and the lower shielding cover 430, the shielding performance of the motherboard 410 is improved, and external interference to the motherboard 410 is reduced. It is understood that the cooling fan 300 is also connected to the motherboard 410 to be powered or have its operating status controlled by the motherboard 410.

[0058] Furthermore, the wireless charging module 400 also includes a coil 440 and an NFC board 450, both electrically connected to the motherboard 410. The coil 440 is positioned between the shielding cover 420 and the NFC board 450. By positioning the NFC board 450 close to the upper shell 100, the distance between the NFC board 450 and the electronic device to be charged is increased. For example, three sets of coils 440 are provided. The wireless charging module 400 also includes a mounting plate 480 and 3M adhesive. The coils 440 are bonded to the mounting plate 480 using 3M adhesive, and the mounting plate 480 is positioned on the shielding cover 420. Preferably, the shielding cover 420 may also be provided with positioning structures for positioning the mounting plate 480, such as positioning grooves, positioning blocks, positioning posts, etc., which are not specifically limited here.

[0059] In this embodiment, to achieve the connection between the motherboard 410 and the shielding cover 420, one of the motherboard 410 and the shielding cover 420 is provided with an elastic snap-fit ​​component 460, and the other is provided with a snap-fit ​​block 470. The snap-fit ​​block 470 can snap into the elastic snap-fit ​​component 460 to connect the shielding cover 420 and the motherboard 410. Exemplarily, the elastic snap-fit ​​component 460 includes two snap-fit ​​pieces 461 disposed opposite to each other, and the two snap-fit ​​pieces 461 are provided with bent snap-fit ​​portions 462 protruding towards each other. The snap-fit ​​block 470 can snap into the two bent snap-fit ​​portions 462.

[0060] Optionally, the motherboard 410 is provided with a resilient snap-fit ​​component 460, and the side plate of the upper shield 420 serves as a snap-fit ​​block 470. Furthermore, multiple resilient snap-fit ​​components 460 are provided to ensure reliable connection. Similarly, to connect the motherboard 410 and the lower shield 430, one of the motherboard 410 and the lower shield 430 is provided with a resilient snap-fit ​​component 460, and the other is provided with a snap-fit ​​block 470. The snap-fit ​​block 470 can engage with the resilient snap-fit ​​component 460 to connect the lower shield 430 and the motherboard 410. For example, resilient snap-fit ​​components 460 are provided at the same positions on both the upper and lower surfaces of the motherboard 410, which helps improve the uniformity of force distribution on the motherboard 410.

[0061] It is worth noting that, since the flexible snap-fit ​​component 460 is located on the motherboard 410, the motherboard 410 is not entirely situated between the upper shielding cover 420 and the lower shielding cover 430, but rather at least partially situated between them. To ensure shielding effectiveness, no functional electronic components are installed on the motherboard 410 situated between the upper shielding cover 420 and the lower shielding cover 430.

[0062] Furthermore, a positioning rib 250 is provided inside the lower shell 200, and the wireless charging module 400 abuts against the end of the positioning rib 250. The positioning rib 250 not only improves the structural strength of the lower shell 200, but also enables the positioning of the wireless charging module 400, and the structure is simple.

[0063] Optionally, a cooling groove 120 is provided on the side of the upper shell 100 away from the lower shell 200, and a first air inlet 110 is provided at the bottom of the cooling groove 120. By providing the cooling groove 120, space is provided for air circulation, facilitating air to enter the first air inlet 110. Preferably, a guide protrusion 121 extending towards the first air inlet 110 is provided inside the cooling groove 120. In this embodiment, the cooling groove 120 extends along the length direction of the wireless charging device, and the guide protrusion 121 also extends along the length direction of the wireless charging device. In addition, the first air inlet 110 is provided at one end of the length direction of the wireless charging device. This arrangement improves the cooling effect by extending the airflow path.

[0064] As an optional solution for wireless charging devices, the upper shell 100 and lower shell 200 are snap-fit ​​connected, eliminating the need for additional connectors and making the connection more convenient. The upper shell 100 is provided with a latch 130, which has a latching hole 131. The lower shell 200 is provided with a latching protrusion 260. When the lower shell 200 and upper shell 100 are fastened together, the connection between the upper shell 100 and lower shell 200 is achieved through the snap-fit ​​engagement of the latching protrusion 260 and the latching hole 131. Preferably, the latching protrusion 260 is provided with a guide surface 261 and a latching surface 262. The guide surface 261 guides the latching protrusion 260 into the latching hole 131 when the upper shell 100 and lower shell 200 are fastened together, and the latching surface 262 abuts against the side wall of the latching hole 131 after the latching protrusion 260 is placed in the latching hole 131, thereby improving the reliability of the snap-fit. In other embodiments, other structures can be used to connect the upper shell 100 and the lower shell 200, which are not specifically limited here.

[0065] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A wireless charging device, characterized in that, include: The upper shell has a first air inlet. The lower shell can be fastened with the upper shell to form a module mounting cavity. The lower shell is also provided with a second air inlet and an air outlet. The second air inlet can communicate with the first air inlet, and a fan mounting cavity is provided between the second air inlet and the air outlet. A cooling fan is disposed in the fan mounting cavity, and the cooling fan can drive air to flow along the direction of the first air inlet, the second air inlet, and the air outlet; A wireless charging module is disposed within the module mounting cavity.

2. The wireless charging device according to claim 1, characterized in that, The wireless charging device is also provided with a fan housing, in which the fan mounting cavity is formed, and a clearance notch is provided on one side of the fan housing. The air outlet is formed between the clearance notch and the lower housing, and the air outlet is at an angle to the axis of the cooling fan.

3. The wireless charging device according to claim 2, characterized in that, The wireless charging device is also provided with a connector, which is electrically connected to the wireless charging module and extends at least partially out of the lower shell; the lower shell is also provided with a baffle wall, which is located between the air outlet and the connector.

4. The wireless charging device according to claim 3, characterized in that, The baffle is positioned close to the cooling fan, and a first guide surface is provided on the side close to the cooling fan. The first guide surface is an arc surface.

5. The wireless charging device according to claim 2, characterized in that, Of the lower housing and the fan housing, one is provided with a slot and the other is provided with a locking block, the locking block being able to engage with the slot.

6. The wireless charging device according to claim 2, characterized in that, The wireless charging device is also provided with a buffer layer, which is disposed between the lower shell and the fan shell.

7. The wireless charging device according to claim 1, characterized in that, A second guide surface is provided between the second air inlet and the air outlet, and the second guide surface is set as an arc surface.

8. The wireless charging device according to claim 1, characterized in that, The wireless charging module includes a motherboard, an upper shielding cover, and a lower shielding cover, with the motherboard disposed within the shielding space formed by the upper shielding cover and the lower shielding cover fastening together.

9. The wireless charging device according to claim 8, characterized in that, The wireless charging module is also provided with a coil and an NFC board, both of which are electrically connected to the motherboard. The coil is located between the shielding cover and the NFC board.

10. The wireless charging device according to claim 8, characterized in that, Of the motherboard and the upper shield, one is provided with a flexible snap-fit ​​component, and the other is provided with a snap-fit ​​block. The snap-fit ​​block can snap with the flexible snap-fit ​​component to connect the upper shield and the motherboard; and / or, of the motherboard and the lower shield, one is provided with a flexible snap-fit ​​component, and the other is provided with a snap-fit ​​block. The snap-fit ​​block can snap with the flexible snap-fit ​​component to connect the lower shield and the motherboard.

11. The wireless charging device according to any one of claims 1-10, characterized in that, A cooling groove is provided on the side of the upper shell away from the lower shell, and the first air inlet is located at the bottom of the cooling groove; an air guide protrusion extending toward the first air inlet is provided in the cooling groove.

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