Vehicle-mounted wireless charging device

Abstract

The utility model discloses a vehicle-mounted wireless charging device, relates to the related technical field of wireless charging, and is used for solving the problem of poor heat dissipation effect of an existing vehicle-mounted wireless charging device. The vehicle-mounted wireless charging device comprises a shell, the shell comprises a top cover and a bottom shell, the top cover covers the bottom shell, and an installation space is defined by the top cover and the bottom shell; the charging coil assembly is arranged in the mounting space; the substrate is arranged in the mounting space and is electrically connected with the charging coil assembly; the fluid circulation pipeline is laid on the top cover, and the fluid circulation pipeline is used for providing a circulation channel of refrigerating fluid; the condenser is connected to the fluid circulation pipeline in series so as to reduce the temperature of the refrigerating fluid, and the condenser is communicated with the fluid of the liquid cooling circulation pipeline, so that the temperature of the refrigerating fluid is reduced, and most of heat generated by the vehicle-mounted wireless charging device or the to-be-charged equipment is taken away by the refrigerating fluid; and the heat dissipation effect of the vehicle-mounted wireless charging device is improved.

Description

Technical Field

[0001] The present application relates to the technical field related to wireless charging, and in particular to a vehicle-mounted wireless charging device. Background Art

[0002] With the rapid development of connected cars and smartphones, in-vehicle wireless charging modules are gradually being accepted and promoted by major OEMs for their improved customer convenience and technological innovation. Current in-vehicle wireless charging devices rely solely on structural optimization or active fans to dissipate heat from the module or phone. However, regardless of whether the device is designed for low-power or high-power wireless charging, the heat dissipation performance is unsatisfactory, ultimately resulting in low charging efficiency, excessive heating, and a poor user experience. Utility Model Content

[0003] The present application provides a vehicle-mounted wireless charging device, which can solve the problem that the heat dissipation performance of existing vehicle-mounted wireless charging devices is unsatisfactory, ultimately resulting in low mobile phone charging efficiency, severe heating of the mobile phone, and insufficient user experience.

[0004] To achieve the above objectives, the present application provides a vehicle-mounted wireless charging device, comprising:

[0005] The housing comprises a top cover and a bottom shell, wherein the top cover is arranged on the bottom shell and encloses the top cover to form an installation space;

[0006] a charging coil assembly, disposed in the installation space;

[0007] a substrate, disposed in the installation space, the substrate being electrically connected to the charging coil assembly;

[0008] A fluid circulation pipeline is laid on the top cover, and the fluid circulation pipeline is used to provide a circulation channel for the refrigeration fluid;

[0009] A condenser is connected in series to the fluid circulation pipeline to reduce the temperature of the refrigeration fluid.

[0010] The technical solution of the present application has at least the following beneficial effects: during actual use, mobile phones and other devices that need to be charged are usually placed on the top cover. Therefore, the present application can directly remove the heat generated by the top cover and the electronic devices when charging through the refrigerant fluid in the fluid circulation pipeline laid on the top cover, and by providing a condenser, the temperature of the refrigerant fluid can be reduced so that the refrigerant fluid can remove more heat. In addition, since the refrigerant fluid in the fluid circulation pipeline is in direct contact with the top cover, that is, the heat transfer efficiency between the two is high, it is beneficial to further improve the heat dissipation effect of the vehicle-mounted wireless charging device, and thus it is beneficial to improve the charging efficiency of the mobile phone and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 is a three-dimensional diagram of the vehicle-mounted wireless charging device according to an embodiment of the present application;

[0013] Figure 2 This is an exploded view of the vehicle-mounted wireless charging device according to an embodiment of the present application;

[0014] Figure 3 This is an exploded view of the condenser, fan assembly, water pump, and mounting bracket in the vehicle-mounted wireless charging device according to an embodiment of the present application;

[0015] Figure 4 This is a schematic structural diagram of the housing of the vehicle-mounted wireless charging device in an embodiment of the present application;

[0016] Figure 5 This is a schematic structural diagram of a fluid circulation pipeline in the vehicle-mounted wireless charging device according to an embodiment of the present application;

[0017] Figure 6 This is a structural schematic diagram of another fluid circulation pipeline in the vehicle-mounted wireless charging device according to an embodiment of the present application.

[0018] The main reference numerals in the drawings of this application specification are described as follows:

[0019] 1-housing; 11-top cover; 111-cover plate; 1111-receiving slot; 112-enclosing plate; 1121-bottom edge; 12-bottom housing; 121-bottom plate; 1211-first plate portion; 1212-middle plate portion; 1213-second plate portion; 122-side plate; 1221-top edge; 13-first hollow area; 14-second hollow area;

[0020] 2-Charging coil assembly;

[0021] 3-Substrate;

[0022] 4- fluid circulation pipeline; 41- inlet port; 42- outlet port; 43- cooling pipe; 44- manifold; 45- cooling branch pipe; 46- first main pipe; 47- second main pipe;

[0023] 5- condenser;

[0024] 6-Fan assembly;

[0025] 7-water pump;

[0026] 8-mounting frame; 81-main body; 811-mounting channel; 82-mounting side panel;

[0027] X-first direction; Z-second direction; Y-third direction. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and beneficial effects of this application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for the purpose of explaining this application and are not intended to limit this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the specified features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] An in-vehicle wireless charger is a device used to wirelessly charge electronic devices within a vehicle. It uses electromagnetic induction to transfer power from the vehicle's charger to wirelessly charging-capable devices, such as mobile phones, tablets, and handheld navigation systems. This system conveniently provides charging services for passengers, eliminating the need for cables or plugs; simply place the device in the charging area for automatic charging. Using an in-vehicle wireless charger reduces the clutter and interference of charging cables, providing a more convenient charging experience while also improving the cleanliness of the vehicle interior.

[0034] Current in-vehicle wireless charging devices only have the ability to dissipate heat for the device or the phone through structural optimization or active fans. Regardless of whether the device is designed for low-charging-power phones or phones that currently support high-power wireless charging, the heat dissipation performance is unsatisfactory, ultimately resulting in low charging efficiency, severe phone heating, and an inadequate user experience.

[0035] Therefore, the present application provides a new type of vehicle-mounted wireless charging device. Figure 1 This is a three-dimensional diagram of a vehicle-mounted wireless charging device according to an embodiment of the present application. Figure 2 This is an exploded view of a vehicle-mounted wireless charging device in an embodiment of the present application. Figure 1 and Figure 2 The in-vehicle wireless charging device includes a housing 1, a charging coil assembly 2, a base plate 3, a fluid circulation pipeline 4, and a condenser 5. The housing 1 includes a top cover 11 and a bottom cover 12 that are interconnected to form an installation space. The charging coil assembly 2 is disposed within the installation space, and the base plate 3 is disposed within the installation space and electrically connected to the charging coil assembly 2. The fluid circulation pipeline 4 is laid on the top cover 11 and is used to provide a circulation channel for the refrigerant fluid. The condenser 5 is connected in series to the fluid circulation pipeline to reduce the temperature of the refrigerant fluid.

[0036] During actual use, mobile phones and other devices that need to be charged are usually placed on the top cover 11. Therefore, the present application can directly remove the heat generated by the top cover 11 and the electronic devices when charging through the refrigerant fluid in the fluid circulation pipeline 4 laid on the top cover 11, and by providing a condenser 5, the temperature of the refrigerant fluid can be reduced so that the refrigerant fluid can remove more heat. In addition, since the refrigerant fluid in the fluid circulation pipeline 4 is in direct contact with the top cover 11, that is, the heat transfer efficiency between the two is high, it is beneficial to further improve the heat dissipation effect of the vehicle-mounted wireless charging device, and thus help improve the charging efficiency of the mobile phone and the user experience.

[0037] The charging coil assembly 2 , substrate 3 and fluid circulation pipeline 4 can be understood as being stacked in the thickness direction of the substrate 3 , with the charging coil assembly 2 located between the substrate 3 and the fluid circulation pipeline 4 .

[0038] In order to further improve the cooling effect of the vehicle-mounted wireless charging device, such as Figure 2 and Figure 3 As shown, the in-vehicle wireless charging device also includes a fan assembly 6, which is positioned directly opposite the condenser 5. The housing 1 is provided with a first hollow area 13 and a second hollow area 14, positioned opposite each other, in the air path of the fan assembly 6. The fan assembly 6 can accelerate the heat exchange efficiency between the refrigerant fluid in the condenser 5 and the surrounding air. The fan assembly 6 can be electrically connected to the substrate 3 via a wire, so that power is supplied to the fan assembly 6 through the substrate 3 to cause it to rotate.

[0039] It is understood that the first hollow area 13 and the second hollow area 14 are used to form an air flow path between the installation space of the housing 1 and the outside of the housing 1. For example, air outside the housing 1 enters the installation space through the second hollow area 14 under the action of the fan assembly 6 and is then blown to the condenser 5. This air can exchange heat with the refrigerant fluid in the condenser to become high-temperature air and be discharged through the first hollow area 13.

[0040] Based on the above embodiment, the side of the condenser 5 facing away from the fan assembly 6 is arranged directly opposite to the first hollow area 13, and the side of the fan assembly 6 facing away from the condenser 5 covers at least a portion of the second hollow area 14. The orthographic projection area of ​​the condenser 5 on the first hollow area 13 overlaps with the first hollow area 13, or the orthographic projection area of ​​the condenser 5 on the first hollow area 13 is located within the first hollow area 13, so as to reduce the flow resistance when the air is discharged to the outside of the housing 1 through the first hollow area 13. In other words, the size of the first hollow area 13 is equal to that of the condenser 5, or the size of the first hollow area 13 is slightly larger than that of the condenser 5.

[0041] Based on the above embodiment, the in-vehicle wireless charging device provided by this application also includes a water pump 7 and a mounting bracket 8. The water pump 7 is provided on the fluid circulation pipeline 4 to provide power for the circulation of the refrigerant fluid. The mounting bracket 8 includes a main body 81 and a mounting side plate 82 connected to the main body 81. The main body 81 is connected to the top cover 11 and / or the bottom shell 12. The main body 81 is provided with a mounting channel 811 that extends in the same direction as the first hollow area 13 or the second hollow area 14. The condenser 5 and the fan assembly 6 are both installed in the mounting channel 811. The water pump 7 is connected to the mounting side plate 82. The provision of the mounting bracket 8 enables a modular structure between the above components. During installation, it is only necessary to connect the mounting bracket 8 to the top cover 11 and / or the bottom shell 12 of the housing 1. In addition, by installing both the condenser 5 and the fan assembly 6 in the mounting channel 811, it is possible to ensure that all air blown by the fan assembly 6 flows through the condenser 5, which is beneficial to improving the cooling effect of the condenser 5.

[0042] For example, the installation channel 811 is disposed opposite to the port of the fan assembly 6 and directly opposite to the first hollow area 13 .

[0043] Please refer to Figure 2 and Figure 4 The bottom shell 12 includes a bottom plate 121 facing away from the top cover 11 and a side plate 122 connected to the outer peripheral edge of the bottom plate 121. The bottom plate 121 includes a first plate portion 1211, an intermediate plate portion 1212, and a second plate portion 1213 sequentially connected along the first direction X. The first plate portion 1211 is arranged away from the top cover 11 in the second direction Z relative to the second plate portion 1213. The condenser 5 and the fan assembly 6 are both arranged on the first plate portion 1211 and located in the installation space. At least part of the second hollow area 14 is arranged on the intermediate plate portion 1212. The plate 3 is arranged on the second plate portion 1213, and the charging coil assembly 2 is arranged on the side of the substrate 3 facing away from the second plate portion 1213. The first direction X and the second direction Z are perpendicular to each other and are perpendicular to the thickness direction of the substrate 3. Since the condenser 5 and the fan assembly 6 are large in size, a larger installation clearance is required, so that the first plate portion 1211 is arranged away from the top cover 11 in the second direction Z relative to the second plate portion 1213, thereby ensuring that the area of ​​the installation space corresponding to the first plate portion 1211 is larger in the second direction Z to accommodate the condenser 5 and the fan assembly 6.

[0044] For example, at least a portion of the second hollow area 14 of the present application extends to the first plate portion 1211. Of course, at least a portion of the second hollow area 14 may also extend to the second plate portion 1213.

[0045] Based on the above embodiment, the top cover 11 includes a cover plate 111 and a surrounding plate 112 connected to the outer peripheral edge of the cover plate 111, the surrounding plate 112 has a bottom edge 1121 facing the bottom plate 121, and the side plate 122 has a top edge 1221 facing the cover plate 111, the bottom edge 1121 includes a convex portion protruding toward the bottom plate 121, and the top edge 1221 includes a concave portion, which is arranged corresponding to the first plate portion 1211 and connected to the convex portion. Due to the concave-convex matching structure of the convex portion and the concave portion, the initial positioning of the top cover 11 and the bottom shell 12 during assembly can be achieved, thereby avoiding the problem of misalignment between the two during installation.

[0046] For example, the cover plate 111 is a flat plate, and the protruding portion can be achieved by controlling the dimensions of the enclosure 112 in the second direction Z. Similarly, the recessed portion can be achieved by controlling the dimensions of the side panels 122 in the second direction Z. Alternatively, in other embodiments, one of the bottom edge 1121 and the top edge 1221 is provided with a positioning post, and the other is provided with a positioning hole that cooperates with the positioning post. There are four side panels 122, which are connected end to end in sequence, and there are also four enclosure panels 112, which are connected end to end in sequence.

[0047] Continue to refer to Figure 2 and Figure 4 The top cover 11 includes a cover plate 111 and a surrounding plate 112 connected to the outer peripheral edge of the cover plate 111. The cover plate 111 is provided with a receiving groove 1111. The fluid circulation pipeline 4 is disposed within the receiving groove 1111 and extends along the same path as the receiving groove 1111. Thus, the fluid circulation pipeline 4 can be installed and fixed through the receiving groove 1111, and this installation method is easier to implement.

[0048] Two arrangements of the fluid circulation pipeline 4 are provided below.

[0049] like Figure 2 and Figure 5As shown, the fluid circulation pipeline 4 has an inlet port 41 and an outlet port 42 located on the same side. The fluid circulation pipeline includes a cooling pipe 43 and a manifold 44. The cooling pipe 43 is S-shaped and has a first end and a second end. The manifold 44 extends along a first direction X and has a third end and a fourth end. The second end and the third end are connected. The first end constitutes the inlet port 41 and is connected to the outlet end of the condenser 5. The fourth end constitutes the outlet port 42 and is connected to the inlet end of the condenser. The first direction X is parallel to the base plate 3, thereby ensuring easy connection to the condenser 5 and facilitating improved space utilization in the installation space. In addition, the fluid circulation pipeline 4 can be bent into this shape by a flexible pipe and arranged on the cover plate 111, which facilitates the connection process of the fluid circulation pipeline 4.

[0050] like Figure 6 As shown, the fluid circulation pipeline 4 has an inlet port 41 and an outlet port 42 located on the same side. The fluid circulation pipeline 4 includes multiple cooling branch pipes 45, a first main pipe 46, and a second main pipe 47. The first main pipe 46 and the second main pipe 47 each extend along a first direction X and are spaced apart in a third direction Y. One end of each cooling branch pipe 45 is connected to the first main pipe 46, and the other end is connected to the second main pipe 47. The two ports on one side of the first and second main pipes 46, 47 in the first direction are connected by a cooling branch pipe 45. The two ports on the other side of the first and second main pipes 46, 47 in the first direction respectively constitute the inlet port 41 and the outlet port 42. The first direction X and the third direction Y are perpendicular and parallel to the base plate 3. In other words, the parallel arrangement of the multiple cooling branch pipes 45 ensures that the temperature of the refrigerant fluid in each cooling branch pipe 45 is low, thereby improving heat exchange efficiency.

[0051] It is understood that the above-mentioned vehicle-mounted wireless charging device also includes a first conductive tube and a second conductive tube. The fluid circulation pipeline 4 has an inlet port 41 and an outlet port 42 located on the same side. The first conductive tube connects the inlet port 41 with the outlet end of the condenser 5, and the second conductive tube connects the outlet port 42 with the inlet end of the condenser. In addition, the above-mentioned water pump 7 is provided on the first conductive tube or the second conductive tube. The water pump 7 is electrically connected to the base plate 3 and can adjust the flow rate of the refrigerant fluid by controlling the speed of the water pump 7, thereby adjusting the heat exchange efficiency of the fluid circulation pipeline 4.

[0052] Among them, in order to further improve the heat dissipation effect of the vehicle-mounted wireless charging device, the top cover 11 includes a cover plate 111 and a surrounding plate 112 connected to the outer peripheral edge of the cover plate 111, and the fluid circulation pipeline 4 is arranged on the cover plate 111. The cover plate 111 has a placement area for placing the device to be charged, and the placement area overlaps with the coverage area of ​​the fluid circulation pipeline 4 on the cover plate 111, or the placement area is located within the coverage area of ​​the fluid circulation pipeline 4 on the cover plate 111.

[0053] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0054] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. The content of this specification should not be understood as limiting the present application.

Claims

1. A vehicle-mounted wireless charging device, characterized in that: include: The housing comprises a top cover and a bottom shell, wherein the top cover is arranged on the bottom shell and encloses the top cover to form an installation space; a charging coil assembly, disposed in the installation space; a substrate, disposed in the installation space, the substrate being electrically connected to the charging coil assembly; A fluid circulation pipeline is laid on the top cover, and the fluid circulation pipeline is used to provide a circulation channel for the refrigeration fluid; A condenser is connected in series to the fluid circulation pipeline to reduce the temperature of the refrigeration fluid.

2. The vehicle-mounted wireless charging device according to claim 1, characterized in that: Also includes: a fan assembly, arranged directly opposite to the condenser; Wherein, the housing is provided with a first hollow area and a second hollow area opposite to each other on the gas flow path of the fan assembly.

3. The vehicle-mounted wireless charging device according to claim 2, characterized in that: The side of the condenser facing away from the fan assembly is arranged opposite to the first hollow area, and the side of the fan assembly facing away from the condenser covers at least a portion of the second hollow area. The condenser overlaps with the orthographic projection area of ​​the first hollow area on the first hollow area, or the orthographic projection area of ​​the condenser on the first hollow area is located within the first hollow area.

4. The vehicle-mounted wireless charging device according to claim 3, characterized in that: Also includes: A water pump is provided on the fluid circulation pipeline; The mounting frame includes a main body and a mounting side plate connected to the main body, the main body is connected to the top cover and / or the bottom shell, the main body is provided with a mounting channel with the same through direction as the first hollow area or the second hollow area, the condenser and the fan assembly are both installed in the mounting channel so that all the air blown out by the fan assembly is blown to the condenser, and the water pump is connected to the mounting side plate.

5. The vehicle-mounted wireless charging device according to claim 2, characterized in that: The bottom shell includes a bottom plate facing away from the top cover and a side plate connected to the outer peripheral edge of the bottom plate. The bottom plate includes a first plate portion, an intermediate plate portion, and a second plate portion connected in sequence along a first direction. The first plate portion is arranged relative to the second plate portion and away from the top cover in the second direction. The condenser and the fan assembly are both arranged on the first plate portion and located in the installation space. At least part of the second hollow area is arranged on the intermediate plate portion. The substrate is arranged on the second plate portion, and the charging coil assembly is arranged on the side of the substrate facing away from the second plate portion. The first direction is perpendicular to the second direction and is perpendicular to the thickness direction of the substrate.

6. The vehicle-mounted wireless charging device according to claim 5, characterized in that: The top cover includes a cover plate and a surrounding plate connected to the outer peripheral edge of the cover plate, the surrounding plate has a bottom edge facing the bottom plate, the side plate has a top edge facing the cover plate, the bottom edge includes a convex portion protruding toward the bottom plate, and the top edge includes a concave portion, which is arranged corresponding to the first plate portion and is connected to the convex portion.

7. The vehicle-mounted wireless charging device according to any one of claims 1 to 6, characterized in that: The top cover includes a cover plate and a surrounding plate connected to the outer peripheral edge of the cover plate. The cover plate is provided with a receiving groove. The fluid circulation pipeline is provided in the receiving groove and has the same extension path as the receiving groove.

8. The vehicle-mounted wireless charging device according to claim 7, characterized in that: The fluid circulation pipeline has an inlet port and an outlet port located on the same side. The fluid circulation pipeline includes a cooling pipe and a manifold. The cooling pipe is S-shaped and has a first end and a second end. The manifold extends along a first direction and has a third end and a fourth end. The second end is connected to the third end. The first end constitutes the inlet port and is connected to the outlet end of the condenser. The fourth end constitutes the outlet port and is connected to the inlet end of the condenser. The first direction is parallel to the substrate.

9. The vehicle-mounted wireless charging device according to claim 7, characterized in that: The fluid circulation pipeline has an inlet port and an outlet port located on the same side. The fluid circulation pipeline includes multiple cooling branch pipes, a first main pipe and a second main pipe. The first main pipe and the second main pipe both extend along the first direction and are spaced apart in the third direction. One end of each of the cooling branch pipes is connected to the first main pipe, and the other end is connected to the second main pipe. The two ports of the first main pipe and the second main pipe located on one side in the first direction are connected through one cooling branch pipe. The ports of the first main pipe and the second main pipe located on the other side in the first direction constitute the inlet port and the outlet port, respectively. The first direction and the third direction are perpendicular and parallel to the substrate.

10. The vehicle-mounted wireless charging device according to claim 1, characterized in that: The top cover includes a cover plate and a surrounding plate connected to the outer peripheral edge of the cover plate. The fluid circulation pipeline is arranged on the cover plate. The cover plate has a placement area for placing the device to be charged. The placement area overlaps with the coverage area of ​​the fluid circulation pipeline on the cover plate, or the placement area is located within the coverage area of ​​the fluid circulation pipeline on the cover plate.

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