A vehicle-mounted wireless charging device

Abstract

This utility model discloses an in-vehicle wireless charging device, including a bracket, a first heat-conducting structure, and a second heat-conducting structure. The first heat-conducting structure is disposed above the bracket, and the second heat-conducting structure is disposed above and in close contact with the first heat-conducting structure. A wireless charging module is disposed between the second heat-conducting structure and the first heat-conducting structure. The second heat-conducting structure is correspondingly disposed with a first region corresponding to the first heat-conducting structure, and the number of second heat-conducting structures is at least two. It also includes a cooling device, which is correspondingly disposed with a second region corresponding to the heat-conducting structure. The cooling device is used to lower the temperature of the second region, creating a temperature difference between the second region and the first region, and between the second region and the second heat-conducting structure. This application can prevent heat from accumulating in the charging area or other critical parts, and from flowing back and forth between the charging area and the heat dissipation system, thereby reducing heat accumulation, localized heat buildup, and heat recirculation, and improving heat dissipation efficiency.

Description

Technical Field

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

[0002] With the increasing prevalence of smartphones supporting wireless charging (including Apple and Android phones), in-vehicle wireless charging technology has also matured, and more and more car brands are beginning to equip their vehicles with in-vehicle wireless charging functionality. In-vehicle wireless charging technology primarily utilizes the principle of electromagnetic induction to achieve contactless power transfer to mobile devices while the vehicle is in motion.

[0003] Currently, there are many types of in-vehicle wireless chargers. Based on the number of devices they can charge, they can be divided into single-charging-zone wireless chargers and dual-charging-zone wireless chargers. Based on the device fixing method, they can be divided into magnetic wireless chargers and non-magnetic wireless chargers. In dual-charging-zone magnetic wireless charging solutions, the two charging zones typically share a cooling system, which can lead to thermal coupling between the two zones, specifically manifested in the following ways:

[0004] 1. Heat accumulation phenomenon: When the two charging zones work at the same time, the heat generated is concentrated and transferred to the same heat dissipation system (such as heat sink or liquid cooling pipe), which causes heat to accumulate at the heat dissipation component, increasing its heat load and causing its temperature to rise rapidly, exceeding the normal operating temperature range.

[0005] 2. Heat backflow phenomenon: Because the heat dissipation components cannot dissipate heat in a timely and effective manner, some heat may flow back to the charging area, causing the temperature of the charging area to rise, affecting the normal operation of the wireless charging module, reducing charging efficiency, and even posing a safety hazard to mobile devices.

[0006] 3. Localized heat accumulation: When the temperature in the vicinity of the heat dissipation component is too high, this localized heat accumulation may cause the performance of electronic components and materials in that area to deteriorate, shorten the service life of the components, and may also cause structural problems such as thermal deformation.

[0007] Therefore, there is an urgent need to develop a heat dissipation solution suitable for dual-charging-area or multi-charging-area shared heat dissipation systems in the existing technology. Utility Model Content

[0008] To overcome the heat coupling phenomena such as heat superposition, heat recirculation, and localized heat accumulation that are prone to occur in the dual-zone magnetic wireless charging technology using a shared heat dissipation system, this utility model provides an in-vehicle wireless charging device.

[0009] The technical solution adopted by this utility model to solve its problem is:

[0010] A vehicle-mounted wireless charging device includes a bracket, a first heat-conducting structure, and a second heat-conducting structure. The first heat-conducting structure is disposed above the bracket, and the second heat-conducting structure is disposed above the first heat-conducting structure and is in close contact with the first heat-conducting structure. A wireless charging module is provided between the second heat-conducting structure and the first heat-conducting structure. The second heat-conducting structure is disposed corresponding to a first area of ​​the first heat-conducting structure, and the number of the second heat-conducting structures is at least two.

[0011] It also includes a refrigeration device, which is provided corresponding to the second region of the first heat-conducting structure;

[0012] The refrigeration device is used to lower the temperature of the second region so as to create a temperature difference between the second region and the first region, and between the second region and the second heat-conducting structure.

[0013] In the above technical solution, the cooling device plays a crucial role. By cooling the second region of the first heat-conducting structure, the temperature of the second region is lower than that of the first regions and the second heat-conducting structure, thus making the second region a low-temperature area and forming a heat dissipation "sink point." This low-temperature area effectively guides the heat generated by the first regions and the second heat-conducting structure to converge here, preventing heat accumulation in the wireless charging area or other critical components, and also preventing heat from flowing back and forth between the charging area and the heat dissipation system. Based on this, adverse phenomena such as heat accumulation, localized heat buildup, and heat recirculation can be reduced, improving the heat dissipation efficiency of the entire heat dissipation system and ensuring that the temperature of the entire heat dissipation system remains at a stable state, which is conducive to the stable operation and efficient functioning of the vehicle-mounted wireless charging device.

[0014] As a preferred embodiment, the first heat-conducting structure includes at least two supporting portions and a connecting portion disposed between the supporting portions. The second heat-conducting structure is disposed above the supporting portions and is fitted to the supporting portions and the connecting portion. The wireless charging module is disposed between the second heat-conducting structure and the supporting portions. The second region is located in the connecting portion, and the first region is located in the supporting portion.

[0015] In the above technical solution, the support portion, by supporting the second heat-conducting structure, can thus also support the device to be charged on the second heat-conducting structure. Furthermore, the support portion can accommodate the wireless charging module, thereby eliminating the need for additional support or housing structures and optimizing spatial structure design. The connecting portion, by connecting the various support portions and the second heat-conducting structure, thus plays a role in heat conduction.

[0016] As a preferred embodiment, the cooling device includes at least one semiconductor cooling chip.

[0017] In the above technical solution, the thermoelectric cooler has a sheet-like structure, which allows for good fit with components such as connectors, ensuring the uniformity and stability of the cooling effect. Furthermore, the thermoelectric cooler is small in size and compact in structure, making it easy to install on a bracket and closely align with the connectors, avoiding excessive space occupation. This allows for rapid and efficient cooling within a smaller space, quickly reducing the temperature of the connectors, promptly guiding heat concentration, reducing heat accumulation and localized heat buildup, and improving heat dissipation efficiency.

[0018] As a preferred embodiment, the vehicle-mounted wireless charging device further includes a heat dissipation device, and the semiconductor cooling chip includes a cold end and a hot end, with the cold end corresponding to the connecting portion and the hot end corresponding to the heat dissipation device.

[0019] In the above technical solution, the cold end of the thermoelectric cooler directly corresponds to and is tightly fitted with the connecting part. Through the cooling effect of the cooler, the cold end can quickly absorb the heat from the connecting part, lowering the temperature of the connecting part and forming the required low-temperature area, which becomes the "sink point" for heat dissipation, guiding the heat from the support part and the second heat-conducting structure to concentrate there. The hot end of the cooler corresponds to the heat dissipation device, which is used to dissipate the heat generated by the hot end in a timely manner, preventing the hot end temperature from becoming too high and ensuring the cooling effect and stable performance of the cooler. Based on the above structural design, the corresponding arrangement of the cold end and the connecting part, and the hot end and the heat dissipation device, makes the entire cooling and heat dissipation system compact and rationally laid out, forming a highly efficient heat dissipation closed-loop system between the heat-conducting structure, the cooler, and the heat dissipation device.

[0020] As a preferred embodiment, the heat dissipation device includes a heat sink and a fan, with the hot end corresponding to the heat sink and the heat sink and fan being arranged adjacent to each other.

[0021] In the above technical solution, the heat sink is used to quickly dissipate the heat transferred from the hot end of the cooling chip, and the fan is used to accelerate the airflow and remove the heat dissipated by the heat sink in time, preventing heat from accumulating around the heat sink. Through the coordinated work of the heat sink and the fan, the temperature of the hot end of the cooling chip can be effectively controlled, maintaining the high-efficiency cooling performance of the cooling chip.

[0022] As a preferred embodiment, the vehicle-mounted wireless charging device further includes a thermally conductive gel disposed between the cold end of the thermoelectric cooler and the connecting portion, and between the hot end of the thermoelectric cooler and the heat dissipation device, so that both ends of the thermoelectric cooler are respectively connected to the connecting portion and the heat dissipation device.

[0023] In the above technical solution, the thermally conductive gel enables heat to be transferred more quickly and evenly between the cooling chip and the connector and heat dissipation device, thereby improving the heat transfer efficiency of the entire heat dissipation system. Furthermore, the thermally conductive gel can form a good bond between the semiconductor cooling chip and the connector and heat dissipation device, thus preventing component loosening and poor contact caused by factors such as vibration or thermal expansion, and improving the connection reliability and stability of the entire device.

[0024] As a preferred embodiment, there are two support portions, and the two support portions are connected by the connecting portion; there are two second heat-conducting structures, and the two second heat-conducting structures are respectively disposed above the support portions.

[0025] In the above technical solution, by setting wireless charging modules between the two support parts and the second heat-conducting structure, two independent charging areas are formed, thus realizing the dual-charging area solution.

[0026] As a preferred embodiment, the support portion and the connecting portion are an integral structure.

[0027] In the above technical solution, the integrated structural design of the support and the connecting part can eliminate the need for connecting parts (bolts, washers, clips, etc.) required by the traditional split structure, reduce the space occupied by redundant parts, further optimize the space utilization, and have better heat dissipation performance.

[0028] As a preferred embodiment, at least one of the support portion and the connecting portion is a separate structure.

[0029] In the above technical solution, the separate structural design of the support and the connecting parts allows them to be manufactured using different materials and processes, optimizing performance for their respective functional requirements. Furthermore, the separate structural design can also optimize heat transfer efficiency by adjusting the connection (such as by adding thermally conductive silicone).

[0030] As a preferred embodiment, the connecting part includes a heat-conducting plate; or, the connecting part includes a heat exchange tube, the interior of which is provided with a flowable refrigerant.

[0031] Among the above technical solutions, the heat-conducting plate design can reduce production costs and improve the product's cost-effectiveness while ensuring heat dissipation. The heat exchanger tube design can achieve even more efficient heat dissipation and is suitable for scenarios requiring long-term stable operation and high heat generation.

[0032] As a preferred embodiment, the wireless charging module includes a magnetic structure and a charging coil module. The top side of the second heat-conducting structure is used to place the device to be charged, so that the device to be charged is arranged correspondingly to the magnetic structure and the charging coil module.

[0033] In the above technical solution, the magnetic structure is used to attract the device to be charged, ensuring that the device can be quickly and accurately aligned with the charging coil module when placed, and enhancing the stability of the device during the charging process. The charging coil module transfers electrical energy from the charging device to the device to be charged through the principle of electromagnetic induction, providing stable and efficient energy transfer to meet the user's charging needs.

[0034] In summary, the in-vehicle wireless charging device provided by this utility model has at least the following technical advantages compared to the prior art:

[0035] 1) This utility model uses a cooling device to cool the second region of the first heat-conducting structure, creating a low-temperature region on the second region that is lower than the temperature of each of the first regions and the second heat-conducting structure. This low-temperature region becomes a heat dissipation "gathering point," effectively guiding the heat from each of the first regions and the second heat-conducting structure to concentrate in this region. This avoids heat accumulation in the charging area or other key parts, as well as heat flowing back and forth between the charging area and the heat dissipation system. This reduces the occurrence of heat superposition, local heat accumulation, and heat backflow, improves heat dissipation efficiency, and helps maintain the temperature stability of the entire heat dissipation system.

[0036] 2) The multi-charging-zone wireless charging solution of this utility model adopts a common heat dissipation system design consisting of a first heat-conducting structure, a second heat-conducting structure, and a cooling device. Compared with multiple independent heat dissipation systems, this reduces the number of heat dissipation components such as cooling devices and fans, lowers hardware costs, reduces vibration sources, and reduces noise generated during operation, thus helping to improve the NVH (noise, vibration, and harshness) performance of the vehicle. Furthermore, by covering the dual charging zones with a single heat dissipation component, it avoids two or more independent heat dissipation systems occupying a large space, making the layout of the wireless charger more compact and reasonable. Attached Figure Description

[0037] Figure 1 This is an exploded view of the vehicle-mounted wireless charging device of this utility model;

[0038] Figure 2 This is a top view of the vehicle-mounted wireless charging device of this utility model;

[0039] Figure 3 for Figure 2 The diagram shows a cross-sectional view of BB.

[0040] Figure 4 for Figure 3 A magnified view of part K shown;

[0041] Figure 5 for Figure 3 A partially enlarged schematic diagram of part H shown;

[0042] The meanings of the reference numerals in the attached figures are as follows:

[0043] 1. Bracket; 2. First heat-conducting structure; 21. Support part; 22. Connecting part; 3. Second heat-conducting structure; 4. Cooling device; 5. Heat dissipation device; 51. Heat sink; 52. Fan; 6. Wireless charging module; 61. Magnetic structure; 62. Charging coil module; 7. Thermal conductive gel. Detailed Implementation

[0044] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0045] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0047] See Figures 1-4 As shown, the vehicle-mounted wireless charging device provided by this utility model includes a bracket 1, on which a first heat-conducting structure 2 and a second heat-conducting structure 3 are provided.

[0048] The first heat-conducting structure 2 is located above the bracket 1, and the second heat-conducting structure 3 is located above the first heat-conducting structure 2 and is fitted to the first heat-conducting structure 2. A wireless charging module 6 is provided between the second heat-conducting structure 3 and the first heat-conducting structure 2. The second heat-conducting structure 3 is correspondingly arranged with the first area of ​​the first heat-conducting structure 2, and the number of the second heat-conducting structure 3 is at least two.

[0049] The cooled in-vehicle wireless charging device also includes a cooling device 4, which is correspondingly positioned to the second region of the first heat-conducting structure. The cooling device 4 is used to lower the temperature of the second region, thereby creating a temperature difference between the second region and each of the first regions, and between the second region and each of the second heat-conducting structures 3.

[0050] Specifically, the cooling device 4 cools the second region, making its temperature lower than that of the first regions and the second heat-conducting structure 3, thus creating a heat "sink point" in this low-temperature area of ​​the connecting part 22. This low-temperature area effectively guides the heat generated by the various support parts 21 and the second heat-conducting structure 3 to converge here, preventing heat accumulation in the wireless charging area or other critical parts, and preventing heat from flowing back and forth between the charging area and the heat dissipation system. This reduces adverse phenomena such as heat accumulation, localized heat buildup, and heat recirculation, improving the overall heat dissipation efficiency of the heat dissipation system. Furthermore, by covering the dual charging areas with a single heat dissipation component, the large space occupied by two or more independent heat dissipation systems can be avoided, making the layout of the wireless charging device more compact and rational.

[0051] The sources of heat in the support part 21 and the second heat-conducting structure 3 include, but are not limited to, the device to be charged and the charging coil of the wireless charging module 6.

[0052] Example 1

[0053] In one embodiment of this utility model, a specific structural design scheme for the cooling device 4 and the heat dissipation device 5 is provided.

[0054] In this embodiment, the first heat-conducting structure 2 includes at least two support portions 21 and a connecting portion 22 disposed between each support portion 21, with the support portions 21 connected via the connecting portion 22. The second heat-conducting structure 3 is disposed above the support portions 21 and is fitted to both the support portions 21 and the connecting portion 22. A wireless charging module 6 is disposed between the second heat-conducting structure 3 and the support portions 21. The second region is located at the connecting portion 22, and the first region is located at the support portion 21. Specifically, the support portion 21 supports the second heat-conducting structure 3, thereby supporting the device to be charged on the second heat-conducting structure 3. Furthermore, the support portion 21 can accommodate the wireless charging module 6, eliminating the need for additional support or accommodating structures and optimizing spatial design.

[0055] More specifically, the number of support parts 21 is greater than or equal to two, so that the vehicle-mounted wireless charging device of this utility model is a dual-charging-zone or multi-charging-zone wireless charging scheme.

[0056] Furthermore, the cooling device 4 is used to reduce the temperature of at least a portion of the structure of the connecting portion 22 (i.e., the second region) to create a temperature difference between the at least portion of the connecting portion 22 and each support portion 21 (i.e., the first region), and between the at least portion of the connecting portion 22 and each second heat-conducting structure 3. Specifically, the cooling device 4 cools at least a portion of the structure of the connecting portion 22, making the temperature of the corresponding part of the connecting portion 22 lower than the temperatures of each support portion 21 and the second heat-conducting structure 3, thereby forming a heat "sink point" in this low-temperature region of the connecting portion 22. Through this low-temperature region, the heat generated by each support portion 21 and the second heat-conducting structure 3 can be effectively guided to converge here, thereby preventing heat accumulation in the wireless charging area or other critical parts, and preventing heat from flowing back and forth between the charging area and the heat dissipation system, thus reducing adverse phenomena such as heat superposition, local heat accumulation, and heat backflow.

[0057] See Figure 1 and Figure 4 As shown, in this embodiment, the cooling device 4 includes at least one semiconductor cooling chip. Specifically, the semiconductor cooling chip adopts a sheet-like structure, and its surface can achieve good contact with components such as the connecting part 22, ensuring the uniformity and stability of the cooling effect. Furthermore, the semiconductor cooling chip has the advantages of small size and compact structure, allowing it to closely correspond to the connecting part 22 without occupying too much space. In addition, in the application scenario of an in-vehicle wireless charging device with moderate cooling power requirements, the semiconductor cooling chip can achieve a significant cooling effect with relatively low energy consumption, thereby rapidly reducing the temperature of the connecting part 22 in a small space, promptly guiding the concentration of heat, reducing heat accumulation and localized heat buildup, and improving heat dissipation efficiency.

[0058] Preferably, the cooling device 4 in this embodiment can be a semiconductor cooling chip, and it is arranged in a horizontal direction.

[0059] See Figure 1 and Figure 4As shown, in a preferred embodiment, the vehicle-mounted wireless charging device further includes a heat dissipation device 5. The thermoelectric cooler includes a cold end and a hot end. The cold end corresponds to the connecting part 22, and the hot end corresponds to the heat dissipation device 5. On one hand, the cold end of the thermoelectric cooler can directly correspond to and closely fit the connecting part 22. Through the cooling effect of the cooler, the cold end can quickly absorb the heat from the connecting part 22, reducing the temperature of the connecting part 22 and forming the required low-temperature area, becoming a heat dissipation "gathering point" and guiding the heat from the support part 21 and the second heat-conducting structure 3 to concentrate there. On the other hand, the hot end of the cooler corresponds to the heat dissipation device 5. The heat dissipation device 5 is used to dissipate the heat generated by the hot end in a timely manner, preventing the hot end temperature from becoming too high and ensuring the cooling effect and performance stability of the cooler. Thus, through the corresponding arrangement and cooperation between the cold end and the connecting part 22, and between the hot end and the heat dissipation device 5, the entire cooling and heat dissipation system is compact and rationally laid out, forming a highly efficient heat dissipation closed-loop system, jointly maintaining the temperature stability of the entire device, improving heat dissipation efficiency, and ensuring the stable operation of the vehicle-mounted wireless charging device under different operating conditions.

[0060] Further, see Figure 1 and Figure 4 As shown, the heat dissipation device 5 includes a heat sink 51 and a fan 52, with the heat sink 51 and fan 52 arranged adjacent to each other. The heat sink 51 comprises numerous thin, sheet-like heat dissipation fins, significantly increasing the heat dissipation area. When the cooling chip is operating, the heat generated at its hot end is transferred to the heat sink 51. Due to the high thermal conductivity and large surface area of ​​the heat sink 51, the heat can quickly diffuse within it and be transferred to the surrounding environment. The fan 52 is positioned near the heat sink 51, its main function being to accelerate airflow and promptly remove the heat emitted by the heat sink 51, preventing heat accumulation around it. Thus, through the coordinated operation of the heat sink 51 and the fan 52, the temperature of the hot end of the cooling chip can be effectively controlled, maintaining its efficient cooling performance, thereby ensuring the heat dissipation effect and stable operation of the entire wireless charging device.

[0061] It is worth mentioning that the type of fan 52 can be selected according to actual needs, such as axial fan 52 or centrifugal fan 52. The heat sink 51 and fan 52 can be arranged side by side in the horizontal direction or vertically.

[0062] Furthermore, see Figure 4As shown, the vehicle-mounted wireless charging device also includes thermally conductive gel 7, which is disposed between the cold end of the thermoelectric cooler and the connecting portion 22, and between the hot end of the thermoelectric cooler and the heat dissipation device 5, so that both ends of the thermoelectric cooler are connected to the connecting portion 22 and the heat dissipation device 5, respectively. On one hand, the thermally conductive gel 7 has good thermal conductivity, effectively filling the tiny gaps and uneven surfaces between the cold end of the thermoelectric cooler and the connecting portion 22, and between the hot end of the thermoelectric cooler and the heat dissipation device 5, allowing heat to be transferred more quickly and evenly between the cooler and the connecting portion 22 and the heat dissipation device 5, thereby improving the heat transfer efficiency of the entire heat dissipation system. On the other hand, the thermally conductive gel 7 has a certain degree of adhesion and flexibility, forming a good bonding effect between the thermoelectric cooler and the connecting portion 22 and the heat dissipation device 5, thereby preventing loosening of components and poor contact due to vibration or thermal expansion, improving the connection reliability and stability of the entire device.

[0063] Example 2

[0064] In another embodiment of this utility model, a specific structural design scheme for the first heat-conducting structure 2 and the second heat-conducting structure 3 is provided.

[0065] See Figures 1-3 As shown, in this embodiment, there are two support parts 21, which are connected by a connecting part 22. There are also two second heat-conducting structures 3, each positioned above one of the support parts 21. By placing a wireless charging module 6 between each of the two support parts 21 and the second heat-conducting structure 3, two independent charging areas are formed, thus achieving a dual-charging-area solution. Specifically, the two support parts 21 are connected by the connecting part 22. This structural design forms a stable basic frame, providing reliable mechanical support for the entire wireless charging device. It also serves as a crucial heat conduction path, corresponding to the cooling device 4, facilitating the guidance of heat to the heat dissipation "sink point."

[0066] In one alternative embodiment, the support 21 and the connecting part 22 are an integral structure. This integral structure design can eliminate the need for connectors required by traditional split structures, reduce the space occupied by redundant components, further optimize space utilization, and have better heat dissipation performance.

[0067] In another alternative embodiment, at least one support portion 21 and the connecting portion 22 are separate structures. This separate structure design allows the support portion 21 and the connecting portion 22 to be manufactured using different materials and processes, optimizes performance for their respective functional requirements, and optimizes heat conduction efficiency by adjusting the connection (such as by adding thermally conductive silicone).

[0068] Preferably, all support parts 21 and connecting parts 22 are designed as separate structures.

[0069] It's worth noting that both structural design approaches have their advantages, and the choice depends on specific needs. For example, an integrated structural design is more suitable for applications requiring compactness, high heat dissipation efficiency, and reliability. Conversely, a split structural design is more advantageous for applications demanding high flexibility, ease of repair and maintenance.

[0070] See Figure 1 As shown, in a preferred embodiment, the connecting part 22 can adopt a heat-conducting plate structure. This structure is relatively simple in design, easy to manufacture and install, and reduces production costs and improves the cost-effectiveness of the product while ensuring heat dissipation.

[0071] Of course, the connection part 22 can also adopt a heat exchange tube structure. The heat exchange tube is equipped with a flowable refrigerant. This structure design can achieve a more efficient heat dissipation effect, especially suitable for high-power charging or situations with large heat generation. The combination of heat exchange tube and refrigerant can be optimized according to different heat dissipation requirements. By selecting the appropriate refrigerant type, adjusting the refrigerant flow rate and velocity, more precise temperature control can be achieved, ensuring that the wireless charging device operates within the optimal temperature range, improving heat dissipation efficiency and device lifespan.

[0072] See Figure 1 and Figure 5 As shown, in another preferred embodiment, the wireless charging module 6 includes a magnetic structure 61 and a charging coil module 62. The top side of the second heat-conducting structure 3 is used to place the device to be charged, so that the device to be charged is correspondingly positioned with the magnetic structure 61 and the charging coil module 62. Specifically, the magnetic structure 61 is used to attract the device to be charged, ensuring that the device can be quickly and accurately aligned with the charging coil module 62 when placed, and can enhance the stability of the device to be charged during the charging process, preventing the device from shifting or leaving the charging area due to external forces, and ensuring the continuity and reliability of charging. The charging coil module 62 is the core component of wireless charging, which transmits electrical energy from the charging device to the device to be charged through the principle of electromagnetic induction, providing stable and efficient energy transmission to meet the user's need for fast charging.

[0073] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A vehicle-mounted wireless charging device, characterized in that, The device includes a support frame, a first heat-conducting structure, and a second heat-conducting structure. The first heat-conducting structure is disposed above the support frame, and the second heat-conducting structure is disposed above the first heat-conducting structure and is fitted to the first heat-conducting structure. A wireless charging module is provided between the second heat-conducting structure and the first heat-conducting structure. The second heat-conducting structure is disposed corresponding to a first area of ​​the first heat-conducting structure, and the number of the second heat-conducting structures is at least two. It also includes a refrigeration device, which is provided corresponding to the second region of the first heat-conducting structure; The refrigeration device is used to lower the temperature of the second region so as to create a temperature difference between the second region and the first region, and between the second region and the second heat-conducting structure.

2. The in-vehicle wireless charging apparatus according to claim 1, characterized by, The first heat-conducting structure includes at least two support portions and a connecting portion disposed between the support portions. The second heat-conducting structure is disposed above the support portions and is fitted to the support portions and the connecting portion. The wireless charging module is disposed between the second heat-conducting structure and the support portions. The second region is located in the connecting portion, and the first region is located in the support portion.

3. The in-vehicle wireless charging device according to claim 2, characterized by, The refrigeration device includes at least one semiconductor refrigeration chip.

4. The wireless charging device of claim 3, wherein, The vehicle-mounted wireless charging device also includes a heat dissipation device, which includes a heat sink and a fan. The heat sink and the fan are arranged adjacent to each other. The semiconductor cooling chip includes a cold end and a hot end. The cold end is arranged corresponding to the connecting part, and the hot end is arranged corresponding to the heat sink.

5. The in-vehicle wireless charging device according to claim 4, characterized by, The vehicle-mounted wireless charging device also includes a thermally conductive gel, which is disposed between the cold end of the semiconductor refrigeration chip and the connecting portion, and between the hot end of the semiconductor refrigeration chip and the heat dissipation device, so that both ends of the semiconductor refrigeration chip are respectively connected to the connecting portion and the heat dissipation device.

6. The wireless charging device of claim 2, wherein, The number of the support parts is two, and the two support parts are connected by the connecting part; the number of the second heat-conducting structures is two, and the two second heat-conducting structures are respectively disposed above the support parts.

7. The wireless charging device of claim 6, wherein, The support and the connecting part are an integral structure.

8. The wireless charging device of claim 6, wherein, At least one of the supporting parts and the connecting parts is a separate structure.

9. The wireless charging device of claim 2, wherein, The connecting part includes a heat-conducting plate; or, the connecting part includes a heat exchange tube, the interior of which is provided with a flowable refrigerant.

10. The wireless charging device of claim 1, wherein, The wireless charging module includes a magnetic structure and a charging coil module. The top side of the second heat-conducting structure is used to place the device to be charged, so that the device to be charged is set in a corresponding manner with the magnetic structure and the charging coil module.

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