Wireless charging device

Abstract

The utility model discloses a wireless charging device, which comprises a shell and a first module, and is characterized in that the first module is positioned in the shell and is used for converting externally input electric energy into high-frequency alternating-current electric energy; and the second module is positioned in the shell, is connected with the first module and is used for converting the high-frequency alternating-current electric energy into an alternating electromagnetic field and transmitting the alternating electromagnetic field. According to the wireless charging device provided by the utility model, the first module and the second module are integrated in the same shell, so that the installation convenience of the wireless charging device is effectively improved, and the space occupied by the wireless charging device is reduced, so that the wireless charging device can be more flexibly adapted to different installation and use scenes.

Description

Technical Field

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

[0002] The charging needs of electric vehicles are evolving. While meeting users' demands for fast charging, convenience has also become another priority for electric vehicle users. Therefore, wireless charging for cars has great potential for development. In existing technologies, wireless charging devices typically include multiple components such as a ground terminal, a charging station, and a mounting post. This requires significant installation space, and the installation process is difficult and complex, leading to high costs and hindering the widespread adoption of wireless charging technology. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wireless charging device, wherein the wireless charging device integrates a first module and a second module within the same housing, effectively improving the ease of installation and reducing the space occupied by the wireless charging device.

[0004] A wireless charging device according to an embodiment of the present invention is used to charge a vehicle, comprising: a housing; a first module located inside the housing for converting externally input electrical energy into high-frequency alternating current; and a second module located inside the housing and connected to the first module for converting the high-frequency alternating current into an alternating electromagnetic field and transmitting it.

[0005] According to an embodiment of the present invention, the wireless charging device includes a first module located within a housing, used to convert externally input electrical energy into high-frequency alternating current (AC) energy. A second module located within the housing and connected to the first module is used to convert the AC energy into an alternating electromagnetic field and transmit it, thereby achieving wireless charging of the vehicle. Furthermore, by integrating the first and second modules into the same housing, the ease of installation of the wireless charging device is effectively improved, and the space occupied by the wireless charging device is reduced, allowing the wireless charging device to be more flexibly adapted to different installation and usage scenarios.

[0006] In some embodiments of this utility model, the inner wall of the housing forms an air duct portion, the air duct portion has an air duct, the housing has an inlet and an outlet communicating with the air duct, and the first module is fitted with the air duct portion.

[0007] In some embodiments of this utility model, the two ends of the air duct along its length are the inlet and the outlet, respectively; or, both ends of the air duct along its length are the outlets, and the middle region of the air duct has the inlet.

[0008] In some embodiments of this utility model, at least one of the inlet and the outlet is provided with a fan, which is used to drive airflow from the inlet to the outlet.

[0009] In some embodiments of this utility model, it further includes: a first protective filter assembly disposed at the inlet for filtering airflow entering the duct from the inlet; and a second protective filter assembly disposed at the outlet for filtering airflow entering the duct from the outlet.

[0010] In some embodiments of this utility model, the first protective filter assembly includes a first filter element and a first protective plate, the first filter element and the first protective plate are disposed at the inlet along the airflow direction, the first protective plate is located upstream of the first filter element, the first protective plate has a first through hole and is detachably connected to the housing; and / or, the second protective filter assembly includes a second filter element and a second protective plate, the second filter element and the second protective plate are disposed at the outlet along the airflow direction, the second protective plate is located downstream of the second filter element, the second protective plate has a second through hole and is detachably connected to the housing.

[0011] In some embodiments of this utility model, a heat dissipation component is further included, which is disposed within the air duct and is used to reduce the temperature of the first module.

[0012] In some embodiments of this utility model, the heat dissipation component is disposed within the air duct and includes a heat-conducting element, a heat sink, and a heat pipe. The heat-conducting element is attached to the inner wall of the air duct and extends along the length of the air duct. The heat sink is disposed within the heat-conducting element and extends along the length of the heat-conducting element. The heat pipe passes through the heat sink.

[0013] In some embodiments of this utility model, the heat sinks are arranged in multiple spaced intervals along the height direction of the air duct.

[0014] In some embodiments of this utility model, the second module includes a transmitting coil, and the wireless charging device further includes a support member located inside the housing, with the transmitting coil located on the upper side of the support member.

[0015] In some embodiments of this utility model, the support member includes: a first support beam, which extends along a first direction and is a plurality of beams spaced apart along a second direction; and a second support beam, which extends along a second direction and is a plurality of beams spaced apart along a first direction. The plurality of first support beams and the plurality of second support beams are staggered and connected, and the first direction and the second direction are perpendicular.

[0016] In some embodiments of this utility model, it further includes: a high-voltage wire harness, one end of which extends into the housing and is connected to the first module along its length.

[0017] In some embodiments of this utility model, it further includes: a light-emitting component, which is wound around the portion of the high-voltage wire harness located outside the housing.

[0018] In some embodiments of this utility model, the housing includes a top cover and a bottom cover, the top cover and the bottom cover forming a receiving space, the first module and the second module being located within the receiving space, and the top cover and the bottom cover being fixedly connected; and / or, a sealing ring is provided between the top cover and the bottom cover, the sealing ring extending in an annular shape along the circumferential direction of the top cover; and / or, the outer wall surface at the joint between the top cover and the bottom cover has an adhesive layer, the adhesive layer extending in an annular shape along the circumferential direction of the top cover; and / or, the bottom cover is a metal part, and the top cover is an insulating part.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a structural diagram of a wireless charging device according to an embodiment of the present utility model;

[0022] Figure 2 This is a partial exploded view of a wireless charging device according to an embodiment of the present utility model;

[0023] Figure 3 This is a structural diagram of a wireless charging device according to an embodiment of the present utility model, wherein the bottom cover and support member are not shown.

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a structural diagram of the heat dissipation assembly according to an embodiment of the present utility model;

[0026] Figure 6 This is a bottom view of the top cover and high-voltage wiring harness according to an embodiment of the present utility model;

[0027] Figure 7 This is a structural diagram of a wireless charging device according to another embodiment of the present invention, wherein the bottom cover is not shown;

[0028] Figure 8 This is a partial exploded view of a wireless charging device according to another embodiment of the present invention, wherein the bottom cover is not shown;

[0029] Figure 9 This is a bottom view of the top cover, the second module, and the high-voltage wiring harness according to another embodiment of the present invention;

[0030] Figure 10 This is a structural diagram of the wireless charging device according to another perspective of an embodiment of the present utility model;

[0031] Figure 11 This is a schematic diagram illustrating the application of a wireless charging device according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Wireless charging device;

[0034] 1. Shell; 11. Accommodation space; 12. Top cover; 121. Air duct section; 1212. Inlet; 1213. Outlet; 13. Bottom cover;

[0035] 2. Module One;

[0036] 3. Second module; 31. Transmitting coil;

[0037] 41. First filter element; 42. First protective plate; 43. Second filter element; 44. Second protective plate;

[0038] 5. Heat dissipation components; 51. Thermal conductive components; 52. Heat sink; 53. Heat pipe;

[0039] 6. Supporting components; 61. First supporting beam; 62. Second supporting beam;

[0040] 7. High-voltage wiring harness;

[0041] 8. Light-emitting components;

[0042] 9. Fan. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The wireless charging device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0047] like Figures 1-3 As shown, the wireless charging device 100 according to an embodiment of the present utility model is used to charge a vehicle. The wireless charging device 100 includes a housing 1, a first module 2, and a second module 3.

[0048] The first module 2 is located inside the housing 1 and is used to convert externally input electrical energy into high-frequency AC electrical energy. The second module 3 is located inside the housing 1 and is connected to the first module 2. It is used to convert high-frequency AC electrical energy into alternating electromagnetic fields and emit them.

[0049] It is understandable that, such as Figure 11 As shown, the wireless charging device 100 can be located under the vehicle. The first module 2 converts the externally input power frequency AC power into high frequency AC power, and the second module 3 converts the high frequency AC power into an alternating electromagnetic field and transmits it towards the vehicle's receiving end, thereby realizing wireless charging of the vehicle.

[0050] Specifically, the first module 2 includes a power factor correction circuit and an inverter circuit. The power factor correction circuit adjusts the input current of the first module 2 to maintain the input voltage in phase, reducing the influence of the first module 2 on the external AC circuit. The inverter circuit converts the externally input power frequency AC power into high frequency AC power. The second module 3 includes a primary-side device and a transmitting coil 31. The primary-side device is connected to the inverter circuit to convert the high frequency AC power into an alternating electromagnetic field. The transmitting coil 31 is connected to the primary-side device to transmit the alternating electromagnetic field towards the receiving end of the vehicle.

[0051] Optionally, the first module 2 is connected to the power grid so that the power frequency AC power from the power grid is input into the first module 2, and the first module 2 converts the power frequency AC power input from the power grid into high frequency AC power. The first module 2 transmits the high frequency AC power to the second module 3, and the second module 3 converts the high frequency AC power into an alternating electromagnetic field and transmits it.

[0052] Since both the first module 2 and the second module 3 are located inside the housing 1, the housing 1 can resist damage to the first module 2 and the second module 3 from external impacts, vibrations or extrusions, and can effectively prevent impurities such as moisture and dust from entering the first module 2 and the second module 3. This effectively avoids circuit failures caused by dust accumulation or moisture erosion, thereby ensuring that the first module 2 and the second module 3 maintain structural integrity and stability in complex and changing operating environments, and improving the reliability of the wireless charging device 100.

[0053] Meanwhile, compared with the prior art which installs the first module and the second module separately, this application integrates the first module 2 and the second module 3 into the same housing 1, which effectively improves the convenience of installation of the wireless charging device 100 and reduces the space occupied by the wireless charging device 100, so that the wireless charging device 100 can be more flexibly adapted to different installation and usage scenarios.

[0054] Furthermore, the first module 2 can also integrate functions such as voltage and current detection, overvoltage and overcurrent protection, or WiFi / Bluetooth / LTE communication. Specifically, through the voltage and current detection function, the input and output voltage and current values ​​can be monitored in real time to prevent abnormal conditions such as overvoltage and overcurrent; or, through the overvoltage and overcurrent protection function, a protection mechanism can be automatically triggered when the detected voltage or current exceeds a preset threshold to protect the components in the circuit from damage; or, through wireless communication functions such as WiFi / Bluetooth / LTE communication, the wireless charging device 100 can wirelessly transmit and communicate with other devices or systems to realize functions such as remote monitoring, control, or data transmission.

[0055] The second module 3 can also integrate functions such as liveness detection, foreign object detection, and temperature rise detection. Specifically, the liveness detection function can detect whether there are living beings (such as people or pets) inside the vehicle; or, the foreign object detection function can detect whether there are conductive foreign objects such as metals during the wireless charging device 100's wireless charging of the vehicle, so as to prevent excessive temperature rise caused by induced current generated by foreign objects; or, the temperature rise detection function can monitor the temperature change of the wireless charging device 100 during the wireless charging of the vehicle in real time, thereby ensuring that the wireless charging device 100 operates within a safe temperature range.

[0056] According to an embodiment of the present invention, the wireless charging device 100 has a first module 2 located inside a housing 1, used to convert externally input electrical energy into high-frequency AC electrical energy. A second module 3 is located inside the housing 1 and connected to the first module 2, used to convert the high-frequency AC electrical energy into an alternating electromagnetic field and transmit it, thereby achieving wireless charging of the vehicle. Simultaneously, by integrating the first module 2 and the second module 3 into the same housing 1, the ease of installation of the wireless charging device 100 is effectively improved, and the space occupied by the wireless charging device 100 is reduced, allowing the wireless charging device 100 to more flexibly adapt to different installation and usage scenarios.

[0057] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 9 As shown, the inner wall of the housing 1 forms an air duct section 121, the air duct section 121 has an air duct, the housing 1 has an inlet 1212 and an outlet 1213 communicating with the air duct, and the first module 2 is attached to the air duct section 121.

[0058] It is understandable that external airflow can enter the air duct from the inlet 1212 and flow out from the outlet 1213, so that the air duct section 121 can cool down the first module 2 that is in contact with it, thereby ensuring that the first module 2 operates within a safe temperature range, effectively avoiding damage to the first module 2 due to excessive temperature, and improving the reliability of the wireless charging device 100.

[0059] Meanwhile, the housing 1 has a receiving space 11, and the first module 2 and the second module 3 are both located in the receiving space 11. An air duct 121 is formed through the inner wall of the housing 1, so that the air duct is completely independent from the receiving space 11, thereby preventing liquid or dust particles from entering the receiving space 11 from the air duct, improving the waterproof and sealing performance of the wireless charging device 100, so that the wireless charging device 100 can resist extreme weather such as heavy rain in outdoor installation or water seepage in underground installation, thereby improving the overall reliability of the wireless charging device 100.

[0060] In some embodiments of this utility model, such as Figures 1-4As shown, the two ends of the air duct along its length are an inlet 1212 and an outlet 1213, respectively. Thus, the airflow enters the air duct from the inlet 1212 at one end along the length of the air duct and flows out from the outlet 1213 at the other end along the length of the air duct, so that the air duct section 121 can cool the first module 2 that is in contact with it. At the same time, the structure of the air duct section 121 configured in this way is relatively simple, easy to maintain, and reduces costs.

[0061] In some embodiments of this utility model, such as Figures 7-9 As shown, both ends of the air duct along its length are outlets 1213, and the middle region of the air duct has an inlet 1212. Thus, airflow enters the air duct from the inlet 1212 in the middle region of the air duct and flows out from the outlets 1213 at both ends along the length of the air duct, forming bidirectional heat dissipation. This allows the air duct section 121 to more effectively remove the heat from the first module 2 that it is in contact with, thereby improving heat dissipation efficiency.

[0062] In some embodiments of this utility model, such as Figures 2-9 As shown, at least one of the inlet 1212 and the outlet 1213 is equipped with a fan 9, which drives the airflow from the inlet 1212 to the outlet 1213. Thus, by driving the airflow from the inlet 1212 to the outlet 1213 via the fan 9, the airflow velocity within the duct is increased, allowing the duct section 121 to more effectively remove heat from the first module 2 it is in contact with, further improving heat dissipation efficiency.

[0063] In some embodiments of this utility model, such as Figures 2-9 As shown, the wireless charging device 100 also includes a first protective filter component and a second protective filter component. The first protective filter component is located at the inlet 1212 and is used to filter the airflow entering the air duct from the inlet 1212. The second protective filter component is located at the outlet 1213 and is used to filter the airflow entering the air duct from the outlet 1213.

[0064] Therefore, the external airflow enters the air duct from the inlet 1212 through the first protective filter component. The airflow entering the air duct from the inlet 1212 is filtered by the first protective filter component, which effectively prevents large debris and dust particles from entering the air duct and damaging the fan 9 and other heat dissipation structures in the air duct. This effectively ensures the heat dissipation effect of the first module 2, protects the fan 9 and other heat dissipation structures in the air duct, and improves the overall reliability.

[0065] Meanwhile, the airflow in the duct flows out from the outlet 1213 through the second protective filter component. The second protective filter component filters the airflow entering the duct from the outlet 1213, effectively preventing large debris and dust particles from entering the duct and damaging the fan 9 and other heat dissipation structures in the duct. This effectively ensures the heat dissipation effect on the first module 2, protects the fan 9 and other heat dissipation structures in the duct, and improves overall reliability.

[0066] In some embodiments of this utility model, such as Figures 2-9 As shown, the first protective filter assembly includes a first filter element 41 and a first protective plate 42. The first filter element 41 and the first protective plate 42 are located at the inlet 1212. Along the airflow direction, the first protective plate 42 is located upstream of the first filter element 41. The first protective plate 42 has a first through hole and is detachably connected to the housing 1. Thus, the external airflow passes through the first protective plate 42 and the first filter element 41 in sequence and enters the air duct from the inlet 1212. The first protective plate 42 effectively prevents large debris from entering the air duct and damaging the fan 9 and other heat dissipation structures in the air duct. The first filter element 41 filters dust and other particles in the airflow from entering the air duct and affecting the fan 9 and other heat dissipation structures in the air duct. This effectively ensures the heat dissipation effect of the first module 2, protects the fan 9 and other heat dissipation structures in the air duct, and improves the overall reliability.

[0067] Furthermore, the first protective plate 42 is snap-fitted or magnetically connected to the housing 1, thereby enabling the first protective plate 42 to be detachably connected to the housing 1, which facilitates the maintenance, cleaning, or replacement of the first filter element 41 for components (such as the fan 9 and the heat dissipation component 5) in the air duct.

[0068] Furthermore, the first module 2 also includes a temperature sensor. When the temperature sensor detects a temperature greater than a preset temperature value, it can prompt the user to clean or replace the first filter element 41. The first protective plate 42 is detachably connected to the housing 1, which facilitates the user to clean or replace the first filter element 41.

[0069] In some embodiments of this utility model, such as Figures 2-9As shown, the second protective filter assembly includes a second filter element 43 and a second protective plate 44. The second filter element 43 and the second protective plate 44 are located at the outlet 1213. Along the airflow direction, the second protective plate 44 is located downstream of the second filter element 43. The second protective plate 44 has a second through hole and is detachably connected to the housing 1. Thus, the airflow in the duct passes through the second filter element 43 and the second protective plate 44 in sequence and flows out from the outlet 1213. The second protective plate 44 effectively prevents large debris from entering the duct and damaging the fan 9 and other heat dissipation structures in the duct. The second filter element 43 filters dust and other particles in the airflow from entering the duct and affecting the fan 9 and other heat dissipation structures in the duct, thereby effectively ensuring the heat dissipation effect on the first module 2, protecting the fan 9 and other heat dissipation structures in the duct, and improving overall reliability.

[0070] Furthermore, the second protective plate 44 is snap-fitted or magnetically connected to the housing 1, thereby enabling the second protective plate 44 to be detachably connected to the housing 1, which facilitates the maintenance, cleaning, or replacement of the second filter element 43 for components (such as the fan 9 and the heat dissipation assembly 5) in the air duct.

[0071] Furthermore, the first module 2 also includes a temperature sensor. When the temperature sensor detects a temperature higher than a preset value, it can prompt the user to clean or replace the second filter element 43. The detachable connection between the second protective plate 44 and the housing 1 facilitates cleaning or replacement of the second filter element 43. Optionally, the temperature sensor can communicate with the vehicle or the user's mobile phone. When the temperature sensor detects a temperature higher than the preset value, it proactively sends a reminder to the user via the vehicle display or smartphone application, prompting them to clean the dust filter, thereby preventing further temperature increases, ensuring stable system operation, and extending service life. This design not only improves the system's user interactivity and safety but also enhances the system's reliability and maintenance efficiency through proactive reminders.

[0072] In some embodiments, such as Figures 1-4 As shown, the two ends of the air duct along its length are an inlet 1212 and an outlet 1213, respectively. Fans 9 are installed at both the inlet 1212 and the outlet 1213. A first filter element 41 and a first protective plate 42 are located at the inlet 1212. Along the airflow direction, the first protective plate 42 is located upstream of the first filter element 41 and has a first through hole, and is detachably connected to the housing 1. A second filter element 43 and a second protective plate 44 are located at the outlet 1213. Along the airflow direction, the second protective plate 44 is located downstream of the second filter element 43 and has a second through hole, and is detachably connected to the housing 1. This allows the air duct section 121 to cool the first module 2 it is in contact with, thereby ensuring that the first module 2 operates within a safe temperature range.

[0073] In some embodiments, such as Figures 7-9 As shown, both ends of the air duct are outlets 1213, and the middle area of ​​the air duct has an inlet 1212. A fan 9 is installed at the inlet 1212. A first filter element 41 and a first protective plate 42 are located at the inlet 1212. Along the airflow direction, the first protective plate 42 is located upstream of the first filter element 41. The first protective plate 42 has a first through hole and is detachably connected to the housing 1. A second filter element 43 and a second protective plate 44 are located at the outlet 1213. Along the airflow direction, the second protective plate 44 is located downstream of the second filter element 43. The second protective plate 44 has a second through hole and is detachably connected to the housing 1. This allows the air duct section 121 to cool the first module 2 it is in contact with, thereby ensuring that the first module 2 operates within a safe temperature range.

[0074] In some embodiments of this utility model, such as Figures 2-5 As shown, the wireless charging device 100 also includes a heat dissipation component 5 for reducing the temperature of the first module 2. Therefore, by reducing the temperature of the first module 2 through the heat dissipation component 5, the heat dissipation efficiency of the first module 2 is further improved, thus enhancing overall reliability.

[0075] In some embodiments of this utility model, such as Figures 2-5 As shown, the heat dissipation component 5 is disposed in the air duct and includes a heat-conducting element 51, a heat sink 52 and a heat pipe 53. The heat-conducting element 51 is attached to the inner wall of the air duct and extends along the length of the air duct. The heat sink 52 is disposed in the heat-conducting element 51 and extends along the length of the heat-conducting element 51. The heat pipe 53 passes through the heat sink 52.

[0076] Therefore, the heat from the first module 2 is transferred to the heat-conducting component 51 through the air duct section it is attached to, and then transferred to the heat sink 52 and heat pipe 53 via the heat-conducting component 51. The heat is absorbed by the evaporation of the refrigerant within the heat pipe 53 and the increased heat exchange area of ​​the heat sink 52 effectively reduce the temperature of the first module 2 and improve heat dissipation efficiency. Optionally, the heat-conducting component 51 is a copper sheet.

[0077] Specifically, the refrigerant inside the heat pipe 53 evaporates and absorbs heat, turning into vapor that rises to the cooler part of the heat pipe 53 (away from the first module 2). The external airflow entering the air duct through inlet 1212 carries away the heat released by the heat sink 52 and the heat pipe 53. The refrigerant inside the heat pipe 53 condenses and flows back to the position closer to the first module 2 through the capillary structure or other mechanisms inside the heat pipe 53, and begins to evaporate and absorb heat again, forming a closed thermal cycle, thereby ensuring the operating temperature of the first module 2.

[0078] Furthermore, the first module 2 is located near the inlet 1212 of the air duct section 121 and is in close contact with the air duct section 121, which further improves the heat dissipation effect.

[0079] In some embodiments of this utility model, such as Figure 5 As shown, multiple heat sinks 52 are spaced apart along the height of the air duct. This increases the total surface area for heat exchange with the airflow, allowing more heat to be transferred to the airflow through the heat sinks 52, thus effectively improving the heat dissipation efficiency of the heat dissipation component 5.

[0080] In some embodiments, such as Figure 3 As shown, the second module 3 and the first module 2 are arranged along the first direction, and the air duct 121 extends along the second direction. Thus, this arrangement ensures that the air duct 121 cools the first module 2 while making the spatial layout within the housing space 11 more reasonable, further reducing the size of the wireless charging device 100.

[0081] In some embodiments of this utility model, as shown in the figures, the housing 1 includes a top cover 12 and a bottom cover 13, which form a receiving space 11. The first module 2 and the second module 3 are located within the receiving space 11, and the top cover 12 and the bottom cover 13 are fixedly connected. It is understood that the arrangement of the top cover 12 and the bottom cover 13 facilitates the assembly of components (such as the first module 2 and the second module 3) located within the receiving space 11, reducing assembly difficulty. Simultaneously, the fixed connection between the top cover 12 and the bottom cover 13 ensures a reliable connection between them, thereby improving overall reliability.

[0082] Furthermore, the top cover 12 and the bottom cover 13 are connected by fasteners, thereby achieving a fixed connection between the top cover 12 and the bottom cover 13, ensuring a reliable connection between the two, and thus improving the overall reliability.

[0083] In some embodiments, such as Figure 3 , Figure 4 and Figure 9 As shown, the inner wall of the top cover 12 forms an air duct section 121. The top cover 12 has an inlet 1212 and an outlet 1213 communicating with the air duct. The top cover 12 is a single piece; for example, the air duct section 121 and the top cover 12 are integrally cast during mold opening. This arrangement ensures that the air duct is completely independent of the receiving space 11, thereby preventing liquids or dust particles from entering the receiving space 11 from the air duct, and improving the waterproof and sealing performance of the wireless charging device 100.

[0084] In some embodiments of this utility model, a sealing ring (not shown in the figure) is provided between the top cover 12 and the bottom cover 13, and the sealing ring extends in an annular shape along the circumferential direction of the top cover 12. Thus, the annular sealing ring effectively improves the sealing and waterproofing between the top cover 12 and the bottom cover 13, effectively preventing liquids, dust, and other debris from entering the receiving space 11, protecting the components located within the receiving space 11 (e.g., the first module 2 and the second module 3), and improving the reliability of the wireless charging device 100.

[0085] In some embodiments of this utility model, the outer wall surface at the joint between the top cover 12 and the bottom cover 13 has an adhesive layer, which extends in a ring shape along the circumferential direction of the top cover 12. Thus, after the top cover 12 and the bottom cover 13 are assembled, the ring-shaped adhesive layer formed by applying adhesive to the outer wall surface at the joint further achieves waterproofing and sealing at the joint between the top cover 12 and the bottom cover 13, further preventing liquids, dust, and other debris from entering the receiving space 11, protecting the components located within the receiving space 11, and further improving the reliability of the wireless charging device 100.

[0086] In some embodiments of this utility model, the bottom cover 13 is a metal part, and the top cover 12 is an insulating part. Thus, the metal bottom cover 13 can serve as electromagnetic shielding, reducing unnecessary electromagnetic radiation or signal interference during the wireless charging process of the wireless charging device 100 on the vehicle, improving reliability. Furthermore, the metal bottom cover 13 has higher strength and rigidity, better resisting external impacts and pressure, and improving the structural strength of the wireless charging device 100. Simultaneously, since high-voltage circuits and current may pass through the inside of the wireless charging device 100, the top cover 12, as an insulating part, effectively avoids the risk of electric shock to the user during use, improving safety.

[0087] In some embodiments of this utility model, such as Figure 3 , Figure 6 and Figure 9 As shown, the second module 3 includes a transmitting coil 31, and the wireless charging device 100 also includes a support member 6. The support member 6 is located inside the housing 1, and the transmitting coil 31 is located on the upper side of the support member 6. Thus, the support member 6 provides support and fixation for the transmitting coil 31, effectively preventing unnecessary movement or deformation of the transmitting coil 31 during operation of the wireless charging device 100, thereby improving reliability.

[0088] In some embodiments of this utility model, such as Figure 6As shown, the support member 6 includes a first support beam 61 and a second support beam 62. Multiple first support beams 61 extend along a first direction and are spaced apart along a second direction. The multiple first support beams 61 and multiple second support beams 62 are staggered and connected, with the first and second directions perpendicular to each other. Thus, by spaced apart, the multiple first support beams 61 and multiple second support beams 62 ensure the structural strength of the support member 6 while providing a certain degree of heat dissipation for the transmitting coil 31 located on the upper side of the support member 6.

[0089] In some embodiments, the bottom cover 13 is a metal part, the top cover 12 is an insulating part, and the support member 6 is an insulating part, with the support member 6 located on the bottom cover 13. It can be understood that, since the support member 6 is located on the metal bottom cover 13, and the support member 6 is an insulating part, it not only supports, fixes, and dissipates heat for the transmitting coil 31, but also prevents the metal bottom cover 13 from interfering with the transmitting coil 31, thereby improving overall reliability.

[0090] In some embodiments of this utility model, such as Figures 1-4 As shown, the wireless charging device 100 also includes a high-voltage wiring harness 7. One end of the high-voltage wiring harness 7 extends into the housing 1 and is connected to the first module 2. Thus, externally input electrical energy is transmitted to the first module 2 via the high-voltage wiring harness 7, enabling the first module 2 to convert the externally input electrical energy into high-frequency AC power. Specifically, the high-voltage wiring harness 7 transmits externally input power frequency AC power to the first module 2.

[0091] In some embodiments of this utility model, such as Figure 9 and Figure 10 As shown, the wireless charging device 100 also includes a light-emitting component 8. The light-emitting component 8 is wound around the portion of the high-voltage wiring harness 7 located outside the housing 1. It is understood that when the wireless charging device 100 is located under the vehicle and charging the vehicle, most of the structure of the wireless charging device 100 is obscured by the vehicle, and the vehicle cannot obtain the operating status of the wireless charging device 100 from a conventional charging station indicator light. Therefore, by setting the light-emitting component 8 around the portion of the high-voltage wiring harness 7 located outside the housing 1, the light-emitting component 8 emits different colors of light according to different operating states of the wireless charging device 100 (e.g., whether it has started working or whether there is a malfunction), allowing the user to determine the operating status of the wireless charging second module 3.

[0092] Other components of the wireless charging device 100 according to the embodiments of the present invention, such as the second module 3 and the first module 2, are known to those skilled in the art and will not be described in detail here.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wireless charging device for charging a vehicle, characterized in that, include: Shell (1); The first module (2) is located inside the housing (1) and is used to convert externally input electrical energy into high-frequency AC electrical energy. The second module (3) is located inside the housing (1) and connected to the first module (2), and is used to convert high-frequency AC power into alternating electromagnetic field and transmit it. The inner wall of the housing (1) forms an air duct section (121), the air duct section (121) has an air duct, the housing (1) has an inlet (1212) and an outlet (1213) communicating with the air duct, and the first module (2) is fitted with the air duct section (121).

2. The wireless charging device according to claim 1, characterized in that, The two ends of the air duct along its length are the inlet (1212) and the outlet (1213), respectively. Alternatively, both ends of the air duct along its length are outlets (1213), and the middle region of the air duct has an inlet (1212).

3. The wireless charging device according to claim 2, characterized in that, At least one of the inlet (1212) and the outlet (1213) is provided with a fan (9), which is used to drive airflow from the inlet (1212) to the outlet (1213).

4. The wireless charging device according to claim 1, characterized in that, Also includes: The first protective filter assembly is located at the inlet (1212) and is used to filter the airflow entering the air duct from the inlet (1212); The second protective filter assembly is located at the outlet (1213) and is used to filter the airflow entering the air duct from the outlet (1213).

5. The wireless charging device according to claim 4, characterized in that, The first protective filter assembly includes a first filter element (41) and a first protective plate (42). The first filter element (41) and the first protective plate (42) are located at the inlet (1212) along the airflow direction. The first protective plate (42) is located upstream of the first filter element (41). The first protective plate (42) has a first through hole and is detachably connected to the housing (1). And / or, the second protective filter assembly includes a second filter element (43) and a second protective plate (44), the second filter element (43) and the second protective plate (44) are disposed at the outlet (1213) along the airflow direction, the second protective plate (44) is located downstream of the second filter element (43), the second protective plate (44) has a second through hole and is detachably connected to the housing (1).

6. The wireless charging device according to claim 1, characterized in that, Also includes: Heat dissipation component (5) is disposed in the air duct and is used to reduce the temperature of the first module (2).

7. The wireless charging device according to claim 6, characterized in that, The heat dissipation assembly (5) includes a heat-conducting element (51), a heat sink (52), and a heat pipe (53). The heat-conducting element (51) is attached to the inner wall of the air duct and extends along the length of the air duct. The heat sink (52) is disposed inside the heat-conducting element (51) and extends along the length of the heat-conducting element (51). The heat pipe (53) passes through the heat sink (52).

8. The wireless charging device according to claim 7, characterized in that, Along the height direction of the air duct, the heat sink (52) is a plurality of spaced-apart fins.

9. The wireless charging device according to claim 1, characterized in that, The second module (3) includes a transmitting coil (31), and the wireless charging device further includes: Support member (6), the support member (6) is located inside the housing (1), and the transmitting coil (31) is located on the upper side of the support member (6).

10. The wireless charging device according to claim 9, characterized in that, The support member (6) includes: First support beam (61), the first support beam (61) extends along a first direction and is a plurality of beams spaced apart along a second direction; The second support beam (62) extends along a second direction and is a plurality of beams spaced apart along a first direction. The plurality of first support beams (61) and the plurality of second support beams (62) are staggered and connected. The first direction and the second direction are perpendicular.

11. The wireless charging device according to claim 1, characterized in that, Also includes: A high-voltage harness (7) has one end extending into the housing (1) and connected to the first module.

12. The wireless charging device according to claim 11, characterized in that, Also includes: Light-emitting component (8) is arranged around the portion of the high-voltage harness (7) located outside the housing (1).

13. The wireless charging device according to claim 1, characterized in that, The housing (1) includes a top cover (12) and a bottom cover (13), the top cover (12) and the bottom cover (13) forming a receiving space (11), the first module and the second module are located in the receiving space (11), and the top cover (12) and the bottom cover (13) are fixedly connected; And / or, a sealing ring is provided between the top cover (12) and the bottom cover (13), the sealing ring extending in an annular shape along the circumferential direction of the top cover (12); And / or, the outer wall surface at the joint between the top cover (12) and the bottom cover (13) has an adhesive layer, which extends in a ring shape along the circumferential direction of the top cover (12); And / or, the bottom cover (13) is a metal part and the top cover (12) is an insulating part.

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