Vehicle wireless charging transmitting apparatus and system

Abstract

Provided are a vehicle wireless charging transmitting apparatus and system. The vehicle wireless charging transmitting apparatus comprises a cover body (1), a mounting base (2), a power supply device (3) and a transmitting device (4), wherein the cover body (1) is configured to cover the mounting base (2) and the two form a charging box, an accommodating space is formed between the cover body (1) and the mounting base (2), and the power supply device (3) and the transmitting device (4) are provided in the accommodating space. According to the vehicle wireless charging transmitting apparatus and system, the power supply device and the transmitting device are integrated in the accommodating space of the charging box, so that the power supply device, the transmitting device and a circuit between the two are enclosed in the charging box, effectively avoiding potential safety hazards caused by exposure of an excitation wire between the power supply device and the transmitting device in the prior art, ensuring the normal operation of the wireless charging apparatus.

Description

Automobile wireless charging transmitter and system Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a vehicle wireless charging transmitter device and system. Background Art

[0002] Existing automobile wireless charging transmitters mainly include a power supply device and a transmitter device. The power supply device is electrically connected to the transmitter device through an excitation line. The power supply device is connected to the mains power and is used to convert the mains AC power into DC power and then into high-frequency AC power and transmit it to the transmitter device through the excitation line. The transmitter device is wirelessly connected to a receiver installed in the car, so that the high-frequency magnetic field generated by the transmitter device is coupled with the coil magnetic field of the receiver to realize power transmission for wireless charging of the car's battery pack.

[0003] However, since the power supply device and the transmitting device are usually arranged separately, the excitation line between the power supply device and the transmitting device is exposed. As a result, the exposed excitation line not only poses a safety hazard because it is easily scratched or crushed by foreign objects, but also affects the normal operation of surrounding devices due to the generated magnetic field, thereby affecting the normal operation of the wireless charging device.

[0004] Summary of the Invention

[0005] The problem solved by the present invention is that the excitation line between the power supply device and the transmitter device in the existing automobile wireless charging transmitter device is exposed, which easily creates a safety hazard and affects the normal operation of peripheral devices, thereby affecting the normal operation of the entire automobile wireless charging transmitter device.

[0006] To solve the above problems, in the first aspect, the present invention provides a car wireless charging transmitter device, including a cover body, a mounting base, a power supply device and a transmitter device, the cover body is used to cover the mounting base and the two form a charging box, and an accommodating space is formed between the cover body and the mounting base, and the power supply device and the transmitter device are arranged in the accommodating space.

[0007] Optionally, the transmitting device includes a coil assembly and a magnetic material layer, and the coil assembly, the magnetic material layer and at least part of the power supply device are stacked along the central axis direction of the charging box.

[0008] Optionally, a mounting groove is provided inside the mounting seat, and the power supply device and the transmitting device are respectively arranged in the mounting groove, and the depth of the mounting groove is greater than the thickness of the power supply device and / or the transmitting device.

[0009] Optionally, the charging box also includes a first support structure, which includes a plurality of support ribs, each of which is arranged on the cover body and / or the mounting seat, and a plurality of mounting positions are formed between the support ribs and the circumferential side walls of the cover body and / or the mounting seat, and the power supply device and the transmitting device are respectively arranged in each of the mounting positions.

[0010] Optionally, the automobile wireless charging transmitter device also includes a heat dissipation component arranged in the charging box, the heat dissipation component includes a cooling plate, a cooling medium flow channel is provided inside the cooling plate, and at least part of the power supply device is arranged on the cooling plate.

[0011] Optionally, the power supply device includes a power PCB board and a control PCB board, the coil assembly, the magnetic material layer and the control PCB board are stacked along the central axis direction of the charging box, the power PCB board and the control PCB board are arranged in a horizontal direction in the charging box, and at least one of the power PCB board, the control PCB board and the transmitting device is arranged on the cooling plate.

[0012] Optionally, the automobile wireless charging transmitter device further includes a first shielding plate, which is arranged between the magnetic material layer and the control PCB board.

[0013] Optionally, the cooling medium flow channel is arranged around at least one of the power PCB board, the control PCB board and the transmitting device, and the cooling plate is provided with a liquid inlet and a liquid outlet connected to the cooling medium flow channel, and the liquid inlet and the liquid outlet are used to connect to an external cooling device.

[0014] Optionally, the power supply device includes a power PCB board and a control PCB board, the power PCB board and the control PCB board are respectively arranged on the side of the magnetic material layer away from the coil assembly, and the magnetic material layer and the power supply device are respectively arranged on opposite sides of the cooling plate.

[0015] Optionally, the cooling medium flow channel is arranged around the power PCB board, the control PCB board and the transmitting device.

[0016] Optionally, the cooling plate is made of shielding material.

[0017] Optionally, the automobile wireless charging transmitter device further includes an insulating plate, which is arranged between the magnetic material layer and the cooling plate.

[0018] Optionally, the cooling plate includes a plate body and a sealing cover, the plate body is provided with the cooling medium flow channel, and the sealing cover is sealed to the plate body.

[0019] Optionally, the automobile wireless charging transmitter device also includes a heat dissipation component, which includes a radiator and a fan. The radiator is arranged in the charging box, and at least part of the power supply device is arranged in the radiator. A plurality of air guide channels are provided on the surface of the radiator. The fan is arranged on the side wall of the charging box, and the fan is arranged opposite to the air guide channel of the radiator.

[0020] Optionally, the power supply device includes a power PCB board and a control PCB board, the coil assembly, the magnetic material layer and the control PCB board are stacked along the central axis direction of the charging box, the power PCB board and the control PCB board are arranged in a horizontal direction in the charging box, and the power PCB board is arranged on the radiator.

[0021] Optionally, the automobile wireless charging transmitter device further includes a second shielding plate, which is arranged between the magnetic material layer and the power supply device.

[0022] Optionally, a first positioning structure is provided on the second shielding plate, and a second positioning structure corresponding to the first positioning structure is provided on the magnetic material layer.

[0023] Optionally, the power supply device includes a power PCB and a control PCB, and the power PCB and the control PCB are respectively arranged on a side of the magnetic material layer away from the coil assembly, and at least part of the power supply device is arranged on the radiator.

[0024] Optionally, a third positioning structure is provided in the mounting groove, and a fourth positioning structure is provided on the radiator. When the radiator is arranged in the mounting groove, the fourth positioning structure is adaptively connected to the third positioning structure.

[0025] Optionally, a side wall of the mounting seat is provided with an avoidance opening, and the fan is arranged in the avoidance opening.

[0026] Optionally, the heat dissipation assembly further includes a protective plate, which is arranged at the avoidance groove to shield the fan.

[0027] Optionally, the automobile wireless charging transmitter device further includes a living body detection device and a foreign body detection device, and the living body detection device and the foreign body detection device are respectively arranged in the charging box.

[0028] Compared with the prior art, the present invention forms a charging box by covering the mounting base with a cover body. After the cover body is covered on the mounting base, an accommodating space is formed between the cover body and the mounting base. The power supply device and the transmitting device are integrated in the accommodating space of the charging box, wherein the power supply device and the transmitting device are electrically connected through a line such as an excitation line, thereby enclosing the power supply device and the transmitting device and the excitation line between the two in the charging box, so as to avoid the excitation line from being exposed. This not only effectively avoids the safety hazards caused by the exposure of the excitation line between the power supply device and the transmitting device in the prior art, but also avoids the exposed excitation line from generating a magnetic field to affect the normal operation of peripheral devices outside the car wireless charging transmitter, thereby ensuring the normal operation of the entire car wireless charging transmitter.

[0029] The present invention also provides a car wireless charging system, comprising the car wireless charging transmitter as described above, and a receiving device, wherein the transmitting device of the car wireless charging transmitter is wirelessly connected to the receiving device.

[0030] Therefore, since the automobile wireless charging system includes the above-mentioned automobile wireless charging transmitter, the automobile wireless charging system at least has all the technical effects of the automobile wireless charging transmitter, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a simplified structural diagram of a wireless charging transmitter for a car according to an embodiment of the present invention;

[0032] FIG2 is a schematic diagram of the exploded structure of the first automobile wireless charging transmitter according to an embodiment of the present invention;

[0033] FIG3 is a schematic diagram of a partial structure of a first automobile wireless charging transmitter according to an embodiment of the present invention;

[0034] FIG4 is a schematic structural diagram of a first type of sink mounting plate according to an embodiment of the present invention;

[0035] FIG5 is a schematic structural diagram of a first cooling plate according to an embodiment of the present invention;

[0036] FIG6 is a schematic cross-sectional view of a first automobile wireless charging transmitter device according to an embodiment of the present invention;

[0037] FIG7 is a schematic diagram of the exploded structure of a second automobile wireless charging transmitter according to an embodiment of the present invention;

[0038] FIG8 is a schematic diagram of the exploded structure of the second mounting base according to an embodiment of the present invention;

[0039] FIG9 is a schematic diagram of the exploded structure of the second cooling plate according to an embodiment of the present invention;

[0040] FIG10 is a schematic cross-sectional view of a second automotive wireless charging transmitter device according to an embodiment of the present invention;

[0041] FIG11 is a schematic diagram of the exploded structure of a third automotive wireless charging transmitter according to an embodiment of the present invention;

[0042] FIG12 is a schematic diagram of a partial structure of a third automobile wireless charging transmitter according to an embodiment of the present invention;

[0043] FIG13 is a second partial structural diagram of the third automobile wireless charging transmitter device according to an embodiment of the present invention;

[0044] FIG14 is a schematic cross-sectional view of a third automotive wireless charging transmitter device according to an embodiment of the present invention;

[0045] FIG15 is a schematic diagram of the exploded structure of a fourth automobile wireless charging transmitter according to an embodiment of the present invention;

[0046] FIG16 is a schematic diagram of a partial structure of a fourth automobile wireless charging transmitter according to an embodiment of the present invention;

[0047] FIG17 is a second partial structural diagram of the fourth automobile wireless charging transmitter according to an embodiment of the present invention;

[0048] FIG18 is a schematic cross-sectional view of a fourth automotive wireless charging transmitter device according to an embodiment of the present invention;

[0049] FIG19 is a block diagram showing the structural principle of a wireless charging system for a car according to an embodiment of the present invention.

[0050] Description of reference numerals: 1 - cover; 2 - mounting seat; 21 - mounting slot; 22 - first supporting structure; 23 - third positioning structure; 24-sink; 3-power supply device; 31-power PCB board; 311-PFC circuit; 312-DC voltage regulation circuit; 313-inverter circuit; 32-control PCB board; 33-fixed bracket; 4-transmitter; 41-coil assembly; 411-tray; 412-primary coil; 42-magnetic material layer; 421-second positioning structure; 43-resonant network; 5-heat dissipation assembly; 51-cooling plate; 511-cooling medium flow channel; 512-liquid inlet; 513-liquid outlet; 52-sink mounting plate; 53-radiator; 531-second supporting structure; 54-fan; 55-protective plate; 56-waterproof sealing structure; 6-first shielding plate; 7-insulating plate; 9-second shielding plate; 91-first positioning structure; 10-liveness detection device; 11-foreign matter detection device; 12-connector; 13-receiving device. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0052] It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be practiced in an order other than that illustrated or described herein.

[0053] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] Throughout this specification, references to terms such as "an embodiment," "one embodiment," and "an implementation" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

[0055] In order to solve the above technical problems, in the first aspect, an embodiment of the present invention provides a car wireless charging transmitter device, including a cover body 1, a mounting base 2, a power supply device 3 and a transmitter device 4, wherein the cover body 1 is used to cover the mounting base 2 and the two form a charging box, and an accommodating space is formed between the cover body 1 and the mounting base 2, and the power supply device 3 and the transmitter device 4 are arranged in the accommodating space.

[0056] In this embodiment, as shown in Figure 1, the cover body 1 is arranged above the mounting base 2, and the cover body 1 is used to cover the mounting base 2 in a detachable manner. When the cover body 1 is covered on the mounting base 2, an accommodating space is formed between the two. The accommodating space is used to install electrical equipment of the automobile wireless charging transmitter, such as the power supply device 3, the transmitting device 4, etc., wherein, since the power supply device 3 and the transmitting device 4 are integrated and installed in the accommodating space, the excitation line between the power supply device 3 and the transmitting device 4 is also inside the charging box, thereby avoiding the excitation line from being exposed and avoiding safety hazards.

[0057] In this embodiment, a charging box is formed by covering the cover body 1 on the mounting base 2. After the cover body 1 is covered on the mounting base 2, an accommodating space is formed between the cover body 1 and the mounting base 2. The power supply device 3 and the transmitting device 4 are integrated in the accommodating space of the charging box, wherein the power supply device 3 and the transmitting device 4 are electrically connected through a line such as an excitation line, so that the power supply device 3 and the transmitting device 4 and the excitation line between the two are enclosed in the charging box. By avoiding the exposure of the excitation line, not only can the safety hazards caused by the exposure of the excitation line between the power supply device 3 and the transmitting device 4 in the prior art be effectively avoided, but also the exposed excitation line can be prevented from generating a magnetic field to affect the normal operation of peripheral devices outside the automobile wireless charging transmitter, thereby ensuring the normal operation of the entire automobile wireless charging transmitter.

[0058] Optionally, in combination with Figures 2, 7, 11 and 15, the transmitting device 4 includes a coil assembly 41 and a magnetic material layer 42, and the coil assembly 41, the magnetic material layer 42 and at least part of the power supply device 3 are stacked along the central axis direction of the charging box.

[0059] In this embodiment, by stacking the coil assembly 41, magnetic material layer 42, and at least a portion of the power supply device 3 along the central axis of the charging case, not only does this facilitate quick assembly of the coil assembly 41, magnetic material layer 42, and at least a portion of the power supply device 3 within the charging case, but it also effectively reduces the horizontal dimensions of the charging case, effectively lowering the production and assembly costs of the automotive wireless charging transmitter. The central axis of the charging case refers to the axis perpendicular to the lid 1 and mounting base 2 in the vertical plane. The power supply device 3 is electrically connected to the coil assembly 41 and is configured to provide AC power to the coil assembly 41. The coil assembly 41 is configured to convert the AC power from the power supply device 3 into electromagnetic energy, thereby transmitting electromagnetic energy to the receiving device 13 located on the vehicle, thereby enabling wireless charging of the electric vehicle. The magnetic material layer 42 can be made of ferrite, which has a plate-like structure and is positioned in close proximity to the coil assembly 41 to provide magnetic conductivity and coupling to the coil assembly 41.

[0060] Optionally, in combination with Figures 3, 8, 12 and 16, a mounting groove 21 is provided inside the mounting base 2, and the power supply device 3 and the transmitting device 4 are respectively arranged in the mounting groove 21, and the depth of the mounting groove 21 is greater than the thickness of the power supply device 3 and / or the transmitting device 4.

[0061] In this embodiment, the interior of the mounting groove 21 is used to install the power supply device 3 and the transmitter device 4, and the cover body 1 covers the mounting groove 21 of the mounting base 2, so that the power supply device 3 and the transmitter device 4 can be integrated into the charging box. The power supply device 3 and the transmitter device 4 are connected by a line, such as an excitation line, thereby effectively enclosing the excitation line between the power supply device 3 and the transmitter device 4 in the charging box, thereby achieving safety protection for the excitation line; in addition, by setting the depth of the mounting groove 21 to be greater than the thickness of the power supply device 3, or greater than the thickness of the transmitter device 4, or greater than the thickness of the power supply device 3 and the transmitter device 4, when an external object such as a vehicle or a person passes through the charging box, a downward force is applied to the cover body 1 of the charging box, causing downward deformation and bending. Since the height and depth of the mounting groove 21 are greater than the thickness of the power supply device 3 and / or the transmitter device 4, the outer periphery of the mounting groove 21 is at this time abutted against the deformed cover body 1 to prevent the cover body 1 from continuing to deform downward and crushing the power supply device 3 and the transmitter device 4 in the mounting groove 21, thereby playing a role in preventing the power supply device 3 and the transmitter device 4 from being crushed.

[0062] In addition, as shown in Figure 6, a recessed groove 24 is further provided inside the mounting base 2, and the recessed groove 24 is located in the mounting groove 21. The height of the bottom wall of the recessed groove 24 is lower than the bottom wall of the mounting groove 21, and the top of the recessed groove 24 corresponds to the height of the bottom wall of the mounting groove 21. At this time, at least part of the power supply device 3 is installed in the recessed groove 24, and the bottom of the power supply device 3 is located in the recessed groove 24. A gap is reserved between the bottom of the power supply device 3 and the bottom wall of the recessed groove 24, so that even if the cover body 1 is subjected to a large downward force and is bent and deformed and acts on the power supply device 3, at this time, since the bottom of the power supply device 3 is in the recessed groove 24 and a gap is reserved between the bottom of the power supply device 3 and the bottom wall of the recessed groove 24, the power supply device 3 will bend downward when it is subjected to the extrusion force transmitted by the cover body 1. In other words, the gap serves as a deformation margin space for the power supply device 3, thereby effectively preventing the cover body 1 from directly crushing the power supply device 3 when subjected to a large force, thereby further achieving a safety protection effect on the power supply device 3.

[0063] Among them, the mounting groove 21 can be a spatial area surrounded by the circumferential side walls and bottom walls of the mounting seat 2. If the mounting seat 2 is a quadrangular prism structure with an open top, the mounting seat 2 has four circumferential side walls and one bottom wall; if the mounting seat 2 is a hexagonal prism structure with an open top, the mounting seat 2 has six circumferential side walls and one bottom wall, so the spatial area enclosed by the circumferential side walls and the bottom wall of the mounting seat 2 is used to install the power supply device 3 and the transmitting device 4; therefore, the depth of the mounting groove 21 at this time refers to the height of the circumferential side walls of the mounting groove 21; therefore, the circumferential side walls of the mounting groove 21 can play a role in preventing the cover body 1 from being crushed when it is squeezed by foreign objects.

[0064] Optionally, the charging box also includes a first support structure 22, which includes a plurality of support ribs, each of which is arranged on the cover body 1 and / or the mounting seat 2, and a plurality of mounting positions are formed between the support ribs and the circumferential side walls of the cover body 1 and / or the mounting seat 2, and the power supply device 3 and the transmitting device 4 are respectively arranged in each of the mounting positions.

[0065] In this embodiment, a plurality of supporting ribs are provided on the inner bottom wall of the mounting seat 2 as an example for explanation. In combination with Figures 3, 8, 12 and 16, a first supporting structure 22 is provided in the mounting groove 21 of the mounting seat 2, wherein the first supporting structure 22 includes a plurality of supporting ribs, each supporting rib is staggered, and the plurality of supporting ribs are respectively surrounded by the circumferential side walls of the mounting groove 21 of the mounting seat 2 to form a plurality of mounting positions. At this time, the mounting groove 21 is divided into a plurality of mounting positions, and the power supply device 3 and the transmitting device 4 are respectively provided in each mounting position. When the electronic components in the power supply device 3 and the transmitting device 4 are respectively provided in each mounting position, at this time, each mounting position is The position not only provides a specific installation position for the power supply device 3 and the transmitting device 4, so that the power supply device 3 and the transmitting device 4 will not cause misalignment, movement and other faults under the action of external force collision, thereby realizing the positioning of the power supply device 3 and the transmitting device 4, but also each support rib supports the cover body 1 from the area within the circumferential side wall of the mounting seat 2. When the middle area of ​​the cover body 1 is bent and deformed downward due to external extrusion force, the support ribs in the mounting seat 2 support the cover body 1 to prevent the cover body 1 from continuing to deform downward excessively and crushing the power supply device 3 and the transmitting device 4, thereby further realizing the anti-crushing protection of the power supply device 3 and the transmitting device 4.

[0066] Alternatively, a first supporting structure 22 is only provided on the cover body 1, for example, on the surface facing the mounting seat 2. The first supporting structure 22 includes a plurality of supporting ribs, and the plurality of supporting ribs are staggered, and a plurality of mounting positions are formed between the supporting ribs and the circumferential side walls of the mounting seat 2. The power supply device 3 and the transmitting device 4 are respectively provided in each mounting position. At this time, the mounting position not only provides an installation space for the power supply device 3 and the transmitting device 4, but also can play a role in protecting the power supply device 3 and the transmitting device 4 from crushing.

[0067] Alternatively, a first supporting structure 22 (not shown in the figure) is provided on both the mounting seat 2 and the cover body 1, and the first supporting structure 22 includes a plurality of supporting ribs, which are staggered and enclosed between the supporting ribs and the circumferential side walls of the cover body 1 to form various mounting positions. At this time, the mounting position not only provides an installation space for the power supply device 3 and the transmitting device 4, but also because the first supporting structure 22 is provided on both the mounting seat 2 and the cover body 1, the anti-crushing protection effect of the power supply device 3 and the transmitting device 4 can be further improved by increasing the height of the supporting ribs of the first supporting structure 22.

[0068] Optionally, the automobile wireless charging transmitter further includes a heat dissipation component 5 arranged in the charging box, the heat dissipation component 5 includes a cooling plate 51, a cooling medium flow channel 511 is provided inside the cooling plate 51, and at least part of the power supply device 3 is arranged on the cooling plate 51.

[0069] In this embodiment, a cooling medium flow channel 511 is provided inside the cooling plate 51, and at least part of the power supply device 3 is provided on the cooling plate 51, so that the cooling medium flow channel 511 inside the cooling plate 51 is utilized to dissipate heat and cool the power supply device 3, so that the operating temperature of the power supply device 3 is always within a relatively suitable temperature range, which not only ensures the normal operation of the power supply device 3, but also correspondingly extends the service life of the power supply device 3.

[0070] The cooling medium in the cooling medium flow channel 511 may be circulating cold water, circulating oil, or other cooling media, which is not specifically limited here.

[0071] Optionally, the power supply device 3 includes a power PCB board 31 and a control PCB board 32, the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 are stacked along the central axis direction of the charging box, the power PCB board 31 and the control PCB board 32 are arranged in a horizontal direction in the charging box, and at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 is arranged on the cooling plate 51.

[0072] In this embodiment, as shown in Figures 2 and 3, by stacking the coil assembly 41, the magnetic material layer 42, and the control PCB 32 along the central axis of the charging box, not only can the horizontal size of the charging box be effectively reduced, but the cooling plate 51 can also dissipate heat and cool at least one of the power PCB 31, the control PCB 32, and the transmitting device 4 through the flow of a circulating medium, thereby ensuring that the automotive wireless charging transmitter can operate for a long time and correspondingly extending its service life. The power PCB 31 and the control PCB 32 are arranged horizontally within the charging box, meaning that the power PCB 31 is arranged on one side of the control PCB 32 in the horizontal direction, such as the front, rear, left, or right side, thereby effectively reducing the length or width of the mounting base 2 in the charging box, thereby reducing the volume of the charging box and reducing the production cost of the wireless charging device.

[0073] In addition, at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 is arranged on the cooling board 51, which means that any one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 is arranged on the cooling board 51, or any two of the power PCB board 31, the control PCB board 32 and the transmitting device 4 are arranged on the cooling board 51, or three of the power PCB board 31, the control PCB board 32 and the transmitting device 4 are respectively arranged on the cooling board 51.

[0074] The coil assembly 41 includes a primary coil 412 and a tray 411 . The primary coil 412 is disposed on the tray 411 , so the tray 411 is used for winding the primary coil 412 .

[0075] Optionally, in combination with FIG. 2 and FIG. 6 , the automobile wireless charging transmitter device further includes a first shielding plate 6 , which is disposed between the magnetic material layer 42 and the control PCB board 32 .

[0076] In this embodiment, since the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 are stacked along the central axis of the charging box, the coil assembly 41 and the magnetic material layer 42 will generate electromagnetic interference to the control PCB board 32, thereby affecting the normal operation of the control PCB board 32. Therefore, a first shielding plate 6 is provided between the magnetic material layer 42 and the control PCB board 32, so that the electromagnetic interference of the coil assembly 41 and the magnetic material layer 42 to the control PCB board 32 can be shielded by the first shielding plate 6 to ensure the normal operation of the control PCB board 32.

[0077] The first shielding plate 6 may be made of an aluminum plate, or a plate made of other shielding materials, which is not specifically limited here.

[0078] Optionally, the cooling medium flow channel 511 is arranged around at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4, and the cooling plate 51 is provided with a liquid inlet pipe port 512 and a liquid outlet pipe port 513 connected to the cooling medium flow channel 511, and the liquid inlet pipe port 512 and the liquid outlet pipe port 513 are used to connect to an external cooling device.

[0079] In this embodiment, as shown in FIG5 , a liquid inlet 512 and a liquid outlet 513 are provided on the side wall of the cooling plate 51 to communicate with the cooling medium flow channel 511, and the liquid inlet 512 and the liquid outlet 513 are used to communicate with an external cooling device, so that a low-temperature cooling medium such as cold water can be output through the external cooling device and enter the cooling medium flow channel 511 through the liquid inlet 512 to absorb the heat generated by the operation of at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 arranged on the cooling plate 51. At this time, the cooling medium such as cold water in the cooling medium flow channel 511 becomes warm water and is then discharged from the liquid outlet 513 to the external cooling device. The cooling medium is effectively utilized to flow in the cooling medium flow channel 511 to effectively cool down at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 in real time; furthermore, the cooling medium flow channel 511 is arranged around at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4, so that the cooling medium flow channel 511 can absorb more heat generated by the operation of at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4 from the circumferential direction, further improving the heat dissipation and cooling effect of at least one of the power PCB board 31, the control PCB board 32 and the transmitting device 4.

[0080] 3 and 6 , the cooling medium flow channel 511 is provided as an example to illustrate the arrangement of the power PCB 31. In other words, the cooling medium flow channel 511 is an annular flow channel, and the power PCB 31 is disposed within the annular flow channel, thereby effectively improving the cooling effect on the power PCB 31. Of course, the cooling medium flow channel 511 is provided to surround at least one of the power PCB 31, the control PCB 32, and the emitting device 4, as described in the above embodiment. In other words, by increasing the circumference of the cooling medium flow channel 511, cyclic cooling of multiple electrical devices, such as the power PCB 31, the control PCB 32, and the emitting device 4, can be achieved. This will not be further described here.

[0081] In addition, the external cooling device is used to cool the warm water coming out of the liquid outlet pipe 513 of the cooling plate 51 into cold water, and then output the cold water through the liquid inlet pipe 512 of the cooling plate 51 into the cooling medium flow channel 511. The external cooling device is used to provide a circulating cooling medium, and a water cooling device in the existing technology can be used, which will not be repeated here; as long as the external cooling device can provide a circulating cooling medium, it is suitable for this technical solution and will not be repeated here.

[0082] In this embodiment, as shown in Figures 3, 4 and 6, the automotive wireless charging transmitter further includes a water tank mounting plate 52 and a fixing bracket 33. The water tank mounting plate 52 is disposed in the mounting groove 21 of the mounting base 2, and the cooling plate 51 is disposed in the water tank mounting plate 52. Therefore, the water tank mounting plate 52 is used to stably fix the cooling plate 51 in the mounting groove 21 of the mounting base 2; multiple fixing brackets 33 are spaced apart in the mounting groove 21, and the power PCB board 31 can be mounted on the fixing bracket 33 by means of screws or clamping columns. The bottom of the power PCB board 31 can directly contact the cooling plate 51, or a gap can be retained between the cooling plate 51, so that the power PCB board 31 can be cooled by the flow of circulating medium through the cooling plate 51.

[0083] Optionally, in combination with Figure 7, the power supply device 3 includes a power PCB board 31 and a control PCB board 32, and the power PCB board 31 and the control PCB board 32 are respectively arranged on the side of the magnetic material layer 42 away from the coil assembly 41, and the magnetic material layer 42 and the power supply device 3 are respectively arranged on opposite sides of the cooling plate 51.

[0084] In this embodiment, the power PCB board 31 and the control PCB board 32 are respectively arranged on the side of the magnetic material layer 42 away from the coil assembly 41, which means that, relative to the position of the magnetic material layer 42, if the coil assembly 41 is above the magnetic material layer 42, then the power PCB board 31 and the control PCB board 32 are both located below the magnetic material layer 42; in other words, the coil assembly 41, the magnetic material layer 42 and the power PCB board 31 and the control PCB board 32 in the power supply device 3 are stacked, thereby effectively reducing the horizontal length and width of the automotive wireless charging transmitter device, thereby reducing the volume of the automotive wireless charging transmitter device, and thus reducing the cost. As shown in Figures 7 and 8, the magnetic material layer 42 and the power supply device 3 are respectively arranged on opposite sides of the cooling plate 51. In other words, the cooling plate 51 is arranged between the transmitting device 4 and the power supply device 3. At this time, the heat generated by the transmitting device 4 and the power supply device 3 during operation is absorbed and taken away by the cooling medium in the cooling plate 51, so that the transmitting device 4 and the power supply device 3 can be dissipated and cooled at the same time through the cooling plate 51 to ensure that the automobile wireless charging transmitter can work normally and the corresponding automobile wireless charging transmitter can extend the service life.

[0085] Among them, the power PCB board 31 and the control PCB board 32 are respectively installed in the respective installation positions of the installation groove 21 of the mounting base 2 through the fixing bracket 33, as shown in Figure 8; combined with Figure 9, the external cooling device outputs a low-temperature cooling medium such as cold water, which enters the cooling medium flow channel 511 from the liquid inlet pipe 512 of the cooling plate 51 and flows to absorb the heat generated by the operation of the transmitting device 4 and the power supply device 3 arranged on the upper and lower sides of the cooling plate 51 and turns it into warm water, and then the warm water is discharged from the liquid outlet pipe 513 of the cooling plate 51 to the external cooling device, thereby realizing the cyclic cooling operation of the power supply device 3 and the transmitting device 4.

[0086] Optionally, as shown in FIG. 10 , the cooling medium flow channel 511 is provided around the power PCB board 31 , the control PCB board 32 and the transmitting device 4 .

[0087] In this embodiment, the cooling medium flow channel 511 is arranged around the power PCB board 31, the control PCB board 32 and the emitting device 4, so that the cooling medium flow channel 511 absorbs more heat generated by the operation of the power PCB board 31, the control PCB board 32 and the emitting device 4 from the circumferential direction, further improving the cooling effect of the power PCB board 31, the control PCB board 32 and the emitting device 4.

[0088] Optionally, the cooling plate 51 is made of shielding material.

[0089] In this embodiment, since the cooling plate 51 is made of shielding material, the cooling plate 51 not only has the effect of liquid cooling the power supply device 3 and the transmitting device 4, but also can effectively shield the interference of the electromagnetic waves generated by the transmitting device 4 on the power supply device 3, so as to ensure that the power supply device 3 can work normally.

[0090] Optionally, as shown in FIG. 7 , the automobile wireless charging transmitter device further includes an insulating plate 7 , which is disposed between the magnetic material layer 42 and the cooling plate 51 .

[0091] In this embodiment, by arranging the insulating plate 7 between the magnetic material layer 42 and the cooling plate 51, when the charging box is severely squeezed and deformed, the cooling medium in the cooling plate 51 may leak. At this time, the insulating plate 7 can effectively prevent the cooling medium of the cooling plate 51 from spraying upward into the magnetic material layer 42 or other components of the transmitting device 4, thereby preventing a short circuit failure caused by the cooling medium entering the transmitting device 4, and correspondingly extending the service life of the automobile wireless charging transmitting device.

[0092] Optionally, the automobile wireless charging transmitter device further includes two waterproof sealing structures 56 , which are respectively arranged at the connection between the cooling plate 51 and the liquid inlet 512 , and at the connection between the cooling plate 51 and the liquid outlet 513 .

[0093] In this embodiment, waterproof sealing structures 56 are respectively provided at the connection between the cooling plate 51 and the liquid inlet pipe 512, and at the connection between the cooling plate 51 and the liquid outlet pipe 513, thereby effectively preventing the cooling medium in the cooling plate 51 from leaking from the liquid outlet pipe 513, or the low-temperature cooling medium provided by the external cooling device from leaking when entering the liquid inlet pipe 512, so as to avoid the cooling medium from causing a short circuit accident to the power supply device 3 and the transmitting device 4, thereby ensuring the normal operation of the automobile wireless charging transmitting device.

[0094] Optionally, the cooling plate 51 includes a plate body and a sealing cover, the plate body is provided with the cooling medium flow channel 511, and the sealing cover is sealed to the plate body.

[0095] In this embodiment, as shown in FIG10 , the plate body is a rectangular structure with an internal cavity and an open top. A cooling medium flow channel 511 is provided within the plate body. The cooling medium can flow continuously within the cooling medium flow channel 511 and is sealed to the plate body via a sealing cover, thereby effectively preventing the cooling medium from leaking out of the top opening of the plate body. Furthermore, flanges are provided on the circumferential sidewalls of the plate body, perpendicularly connected to the plate body. When the sealing cover is installed on the plate body, the edges of the sealing cover connect to the flanges of the plate body, thereby increasing the contact area between the sealing cover and the plate body and correspondingly improving the sealing performance between the sealing cover and the plate body.

[0096] Optionally, in combination with Figures 11, 12, 15 and 16, the automobile wireless charging transmitter further includes a heat dissipation component 5, the heat dissipation component 5 includes a radiator 53 and a fan 54, the radiator 53 is arranged in the charging box, at least part of the power supply device 3 is arranged in the radiator 53, and a plurality of air guide channels are provided on the surface of the radiator 53. The fan 54 is arranged on the side wall of the charging box, and the fan 54 is arranged opposite to the air guide channel of the radiator 53.

[0097] In this embodiment, the radiator 53 is arranged in the charging box, and the fan 54 is arranged on the side wall of the charging box, so that the internal space of the charging box is fully utilized; at least part of the power supply device 3 is arranged on the radiator 53, so that the heat of at least part of the power supply device 3 is transferred to the radiator 53, and multiple air guide channels are arranged on the radiator 53, and the fan 54 is arranged opposite to the air guide channels of the radiator 53. At this time, the operation of the fan 54 can make air pass through the air guide channels of the radiator 53, which can accelerate the flow of air on the surface of the radiator 53 to blow away the heat absorbed by the radiator 53 during the power supply period, and when the air passes through the air guide channels in the radiator 53, it can also take away more heat absorbed by the power supply device 3 by the radiator 53, so as to improve the cooling effect on the power supply device 3 arranged on the radiator 53, and then achieve better heat dissipation and cooling effect for at least part of the power supply device 3 through air cooling.

[0098] Among them, if the thickness of the mounting base 2 is greater than the thickness of the cover body 1, for example, the mounting base 2 is provided with a mounting groove 21, the radiator 53 is installed in the mounting base 2 of the charging box, and the fan 54 is arranged on the side wall of the mounting base 2 of the charging box, as shown in Figures 11 and 15; if the thickness of the mounting base 2 is less than the thickness of the cover body 1, for example, the bottom of the cover body 1 is provided with a mounting groove 21, the radiator 53 is installed in the cover body 1 of the charging box, and the fan 54 is arranged on the side wall of the cover body 1 of the charging box.

[0099] In addition, the air guide channel can be set up in the following ways, for example, multiple grooves are set at intervals on the bottom of the radiator 53, and each groove serves as an air guide; or, multiple air guide plates are set on the lower surface of the radiator 53, and an air guide channel is formed between two adjacent air guide plates.

[0100] Optionally, in combination with Figures 11, 12 and 14, the power supply device 3 includes a power PCB board 31 and a control PCB board 32, the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 are stacked along the central axis direction of the charging box, the power PCB board 31 and the control PCB board 32 are arranged in a horizontal direction in the charging box, and the power PCB board 31 is set on the radiator 53.

[0101] In this embodiment, by stacking the coil assembly 41, the magnetic material layer 42, and the control PCB 32 along the central axis of the charging box, the horizontal size of the charging box can be effectively reduced. By arranging the power PCB 31 and the control PCB 32 horizontally within the charging box, and by placing the power PCB 31 on the heat sink 53, the heat sink 53 can absorb the heat generated by the power PCB 31. When the fan 54 is driven to increase the air flow rate on the surface of the heat sink 53, the power PCB 31 can be quickly cooled, ensuring that the automotive wireless charging transmitter can operate for a long time and correspondingly extending its service life. The power PCB 31 is placed on one side of the control PCB 32, which means that the power PCB 31 is placed on one side of the control PCB 32 in the horizontal direction, such as the front, rear, left, or right side. This effectively reduces the length or width of the mounting base 2 in the charging box, thereby reducing the volume of the charging box and reducing the production cost of the wireless charging device.

[0102] Of course, the surface area of ​​the radiator 53 can also be increased so that the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 can also be set on the radiator 53, so that the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 can be cooled simultaneously through the radiator 53.

[0103] Optionally, in combination with FIG. 11 and FIG. 15 , the automobile wireless charging transmitter device further includes a second shielding plate 9 , which is disposed between the magnetic material layer 42 and the power supply device 3 .

[0104] In this embodiment, since the coil assembly 41, the magnetic material layer 42 and the control PCB board 32 are stacked along the central axis of the charging box, the coil assembly 41 and the magnetic material layer 42 will generate electromagnetic interference to the power supply device 3, thereby affecting the normal operation of the power supply device 3. Therefore, a second shielding plate 9 is provided between the magnetic material layer 42 and the power supply device 3, so that the electromagnetic interference of the coil assembly 41 and the magnetic material layer 42 to the power supply device 3 can be shielded by the second shielding plate 9 to ensure the normal operation of the power supply device 3.

[0105] The second shielding plate 9 may be made of an aluminum plate, or a plate made of other shielding materials, which is not specifically limited here.

[0106] Optionally, as shown in FIG. 11 and FIG. 15 , the second shielding plate 9 is provided with a first positioning structure 91 , and the magnetic material layer 42 is provided with a second positioning structure 421 corresponding to the first positioning structure 91 .

[0107] In this embodiment, a first positioning structure 91 is provided on the second shielding plate 9, and the magnetic material layer 42 is provided with a second positioning structure 421, and the first positioning structure 91 corresponds to the second positioning structure 421, so that the first positioning structure 91 cooperates with the second positioning structure 421. At this time, the first positioning structure 91 and the second positioning structure 421 can not only position and install the magnetic material layer 42 on the second shielding plate 9, but also prevent the magnetic material layer 42 and the second shielding plate 9 from relative movement when the charging box is subjected to external impact force, so as to realize the fixed assembly of the second shielding plate 9 and the magnetic material layer 42.

[0108] The first positioning structure 91 may be a groove structure, and the second positioning structure 421 may be a protrusion structure, so that the magnetic material layer 42 can be positioned and installed on the second shielding plate 9 by adapting the protrusion structure to the groove structure.

[0109] Optionally, the power supply device 3 includes a power PCB board 31 and a control PCB board 32, and the power PCB board 31 and the control PCB board 32 are respectively arranged on the side of the magnetic material layer 42 away from the coil assembly 41, and at least part of the power supply device 3 is arranged on the radiator 53.

[0110] In this embodiment, as shown in Figure 15, the power PCB board 31 and the control PCB board 32 are respectively arranged on the side of the magnetic material layer 42 away from the coil assembly 41, which means that relative to the position of the magnetic material layer 42, if the coil assembly 41 is above the magnetic material layer 42, then the power PCB board 31 and the control PCB board 32 are both located below the magnetic material layer 42; in other words, the coil assembly 41, the magnetic material layer 42 and the power PCB board 31 and the control PCB board 32 in the power supply device 3 are stacked, thereby effectively reducing the length and width of the automobile wireless charging transmitter in the horizontal direction, thereby reducing the volume of the automobile wireless charging transmitter, and thus reducing the cost.

[0111] Since the power PCB 31 generates a relatively large amount of heat, if it cannot be cooled, the power PCB 31 will be burned, thereby affecting the normal charging operation of the entire automotive wireless charging transmitter. Therefore, as shown in Figures 15 to 18, at least a portion of the power supply device 3, such as the power PCB 31, is disposed on the radiator 53. At this time, the heat generated by the power PCB 31 of the power supply device 3 during operation is transferred to the radiator 53, so that the fan 54 blows air to the radiator 53, thereby blowing away the heat absorbed by the power PCB 31 of the radiator 53, thereby dissipating heat and cooling the power PCB 31, thereby ensuring the normal operation of the automotive wireless charging transmitter and the corresponding service life of the automotive wireless charging transmitter.

[0112] Furthermore, the surface area of ​​the heat sink 53 can be enlarged, so that the entire power supply device 3, such as the power PCB board 31 and the control PCB board 32, can be set on the heat sink 53, so that the entire power supply device 3 can be cooled and dissipated.

[0113] Optionally, in combination with Figures 11, 12, 15 and 16, a third positioning structure 23 is provided in the mounting groove 21, and a fourth positioning structure is provided on the radiator 53. When the radiator 53 is arranged in the mounting groove 21, the fourth positioning structure is adapted to be connected with the third positioning structure 23.

[0114] In this embodiment, a third positioning structure 23 is set in the mounting groove 21. The third positioning structure 23 can be a mounting position surrounded by vertical plates, or a sink 24 lower than the mounting groove 21. A third positioning structure 23 is set at the bottom of the radiator 53. The fourth positioning structure can be a positioning frame surrounded by vertical plates, and the fourth positioning structure is set on the bottom wall of the radiator 53 facing the mounting seat 2. Therefore, when the radiator 53 is set in the mounting groove 21, the fourth positioning structure at the bottom of the radiator 53 is in the third positioning structure 23 of the mounting seat 2, so as to be adapted and connected with the third positioning structure 23, so that the radiator 53 is positioned and fixed in the mounting groove 21 to prevent the radiator 53 from shaking in the mounting groove 21.

[0115] Optionally, in combination with what is shown in FIG15 , the automobile wireless charging transmitter device further includes a connector 12 , which is disposed on the side wall of the charging box, one end of the connector 12 being electrically connected to the power supply device, and the other end of the connector being used to connect to an external device.

[0116] In this embodiment, the number of connectors 12 can be one or more than two. When the number of connectors is one, the other end of the connector is used to connect to the mains, that is, the AC power of the mains is connected to the power supply device inside the charging box through the connector 12 to provide AC power to the power supply device; if the number of connectors is more than two, for example, the number of connectors is two, and the other end of one connector is connected to the mains to serve as a power supply interface; the two ends of the other connector 12 are respectively connected to the power supply device and the external display panel, through which the charging-related information of the car wireless charging transmitter can be displayed, so the connector can be used as a communication data interface; of course, the number of connectors can be reasonably selected according to the functions that the car wireless charging transmitter needs to achieve, and no more examples are given here.

[0117] Optionally, as shown in FIG. 11 and FIG. 12 , the side wall of the mounting base 2 is provided with an escape opening, and the fan 54 is disposed in the escape opening.

[0118] In this embodiment, an avoidance opening is opened on the side wall of the mounting base 2, thereby facilitating the installation of the fan 54 at the avoidance opening. Compared with installing the fan 54 in an area outside the mounting base 2, this embodiment makes full use of the side wall space of the mounting base 2 to reduce the volume of the entire charging box. The avoidance opening also protects the fan 54 to prevent the fan 54 from being directly exposed to the mounting base 2 and being damaged.

[0119] There may be multiple fans 54 , and the multiple fans 54 are respectively installed at the avoidance openings, thereby increasing the air volume blowing to the radiator 53 and further improving the cooling effect on the radiator 53 .

[0120] Optionally, the heat dissipation assembly 5 further includes a protective plate 55 , which is disposed at the avoidance groove to shield the fan 54 .

[0121] In this embodiment, a protective plate 55 is provided at the avoidance groove to shield the fan 54. The surface of the protective plate 55 is provided with a plurality of heat dissipation holes. Therefore, the protective plate 55 not only shields the fan 54, thereby providing safety protection for the fan 54 and preventing foreign objects from damaging the fan 54, but also serves as an air inlet through the heat dissipation holes. The rotation of the fan 54 draws outside air into the radiator 53, thereby dissipating heat and cooling the power supply device 3 on the radiator 53. Furthermore, a dust screen can be installed on the surface of the protective plate 55, covering the heat dissipation holes, thereby further reducing the entry of outside dust into the fan 54 and reducing the maintenance cycle of the fan 54 and the radiator 53.

[0122] Among them, the protective plate 55 can be detachably installed at the avoidance opening of the mounting base 2, so that it is convenient to clean the dust net and the heat dissipation holes on the protective plate 55 by removing the protective plate 55, and it is also convenient to disassemble and install the fan 54.

[0123] Optionally, in combination with Figures 6, 10, 14 and 18, the automobile wireless charging transmitter device also includes a living body detection device 10 and a foreign body detection device 11, and the living body detection device 10 and the foreign body detection device 11 are respectively arranged in the charging box.

[0124] In this embodiment, the liveness detection device 10 and the foreign object detection device 11 are respectively arranged in the charging box, so that the liveness detection device 10 and the foreign object detection device 11 can respectively realize their respective signal acquisition. For example, the liveness detection device 10 is used to provide detection of living things such as animals and humans, which can also be called LOD liveness detection, and LOD is the abbreviation of "Live Object Detection"; the foreign object detection device 11 is used to detect whether there are metal foreign objects in the primary coil 412 of the transmitting device 4 and the secondary coil of the receiving device 13, which can also be called metal foreign object detection, and FOD is the abbreviation of "Foreign Object Detection"; wherein, the liveness detection device 10 and the foreign object detection device 11 both adopt existing technologies on the market and are not specifically limited here.

[0125] In a second aspect, another embodiment of the present invention provides a car wireless charging system, comprising the car wireless charging transmitter as described in the above embodiment, and also comprising a receiving device 13 , wherein the transmitting device 4 of the car wireless charging transmitter is wirelessly connected to the receiving device 13 .

[0126] In this embodiment, as shown in Figure 19, the power PCB board 31 includes a PFC circuit 311, a DC voltage regulation circuit 312 and an inverter circuit 313, and the transmitting device 4 includes a resonant network 43 and a primary coil 412, wherein the PFC circuit 311, the DC voltage regulation circuit 312, the inverter circuit 313, the resonant network 43 and the primary coil 412 are connected in series in sequence, and the input end of the PFC circuit 311 is connected to the mains. The PFC circuit 311 is a power factor correction circuit, which is not only used to improve the quality of the mains, such as the power supply, but also can convert the AC power of the mains into a DC power of a voltage level and transmit it to the DC voltage regulation circuit 312. The DC voltage regulation circuit 312 is used The DC power of one voltage level output by the PFC circuit 311 is converted into DC power of another voltage level and transmitted to the inverter circuit 313. The inverter circuit 313 is used to convert the DC power output by the DC voltage regulation circuit 312 into high-frequency AC power and transmit it to the resonant network 43. The resonant network 43 serves as the resonant circuit of the transmitting device 4, i.e., the transmitting end, and is used to convert electrical energy into high-frequency electrical energy through the power supply device 3 and transmit it through the primary coil 412. The control PCB board 32 is electrically connected to the PFC circuit 311, the DC voltage regulation circuit 312, and the inverter circuit 313, respectively, and is used to control the normal operation of the PFC circuit 311, the DC voltage regulation circuit 312, and the inverter circuit 313.

[0127] The primary coil 412 of the transmitting device 4 is wirelessly coupled to the secondary coil of the receiving device 13. The receiving device 13 is used to convert the high-frequency electric energy received by the secondary coil into DC electric energy of a certain voltage level, and then convert the DC electric energy of a certain voltage level into DC electric energy of another voltage level and charge the battery pack of the electric vehicle, so as to realize wireless charging of the battery pack of the vehicle.

[0128] Among them, the AC power of the mains is converted into high-frequency electric energy by the power supply device 3 and transmitted through the primary coil 412 of the transmitting device 4, and the high-frequency electric energy is received by the secondary coil of the receiving device 13 and converted into DC electric energy matching the voltage level of the battery pack of the electric vehicle to ensure that the battery pack can be safely charged. The above-mentioned power supply device 3, transmitting device 4, and receiving device 13 can be implemented using existing technologies on the market, so the specific circuits of the power supply device 3, transmitting device 4, and receiving device 13 that can realize the above-mentioned respective functions are not specifically limited and will not be repeated.

[0129] In addition, the power PCB board 31 in the power supply device 3, the control PCB board 32 and the transmitting device 4 are integrated and installed in the charging box to form a car wireless charging transmitting device, which can be set on the ground; the receiving device 13 can be set on the electric car.

[0130] The car wireless charging system has all the technical effects of the car wireless charging transmitter, which will not be described in detail here.

[0131] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A car wireless charging transmitter, characterized in that: The invention comprises a cover body (1), a mounting seat (2), a power supply device (3) and a transmitting device (4); the cover body (1) is used to cover the mounting seat (2) and the two form a charging box; a receiving space is formed between the cover body (1) and the mounting seat (2); the power supply device (3) and the transmitting device (4) are arranged in the receiving space.

2. The automobile wireless charging transmitter according to claim 1, characterized in that: The transmitting device (4) comprises a coil component (41) and a magnetic material layer (42), and the coil component (41), the magnetic material layer (42) and at least a portion of the power supply device (3) are stacked along the central axis direction of the charging box.

3. The automobile wireless charging transmitter according to claim 2, characterized in that: The mounting seat (2) is provided with a mounting groove (21) inside, the power supply device (3) and the emitting device (4) are respectively arranged in the mounting groove (21), and the depth of the mounting groove (21) is greater than the thickness of the power supply device (3) and / or the emitting device (4).

4. The automobile wireless charging transmitter according to claim 3, characterized in that: The charging box also includes a first support structure (22), the first support structure (22) includes a plurality of support ribs, each of the support ribs is arranged on the cover body (1) and / or the mounting seat (2), and a plurality of mounting positions are formed between the support ribs and the circumferential side walls of the cover body (1) and / or the mounting seat (2), and the power supply device (3) and the transmitting device (4) are respectively arranged in each of the mounting positions.

5. The automobile wireless charging transmitter according to claim 3, characterized in that: It also includes a heat dissipation component (5) arranged in the charging box, the heat dissipation component (5) includes a cooling plate (51), a cooling medium flow channel (511) is provided inside the cooling plate (51), and at least part of the power supply device (3) is arranged on the cooling plate (51).

6. The automobile wireless charging transmitter according to claim 5, characterized in that: The power supply device (3) comprises a power PCB (31) and a control PCB (32); the coil assembly (41), the magnetic material layer (42) and the control PCB (32) are stacked along the central axis direction of the charging box; the power PCB (31) and the control PCB (32) are arranged in a horizontal direction in the charging box; and at least one of the power PCB (31), the control PCB (32) and the transmitting device (4) is arranged on the cooling plate (51).

7. The automobile wireless charging transmitter according to claim 6, characterized in that: It also includes a first shielding plate (6), which is arranged between the magnetic material layer (42) and the control PCB board (32).

8. The automobile wireless charging transmitter according to claim 6, characterized in that: The cooling medium flow channel (511) is arranged around at least one of the power PCB board (31), the control PCB board (32) and the transmitting device (4); the cooling plate (51) is provided with a liquid inlet (512) and a liquid outlet (513) which are connected to the cooling medium flow channel (511); the liquid inlet (512) and the liquid outlet (513) are used to connect to an external cooling device.

9. The automobile wireless charging transmitter according to claim 5, characterized in that: The power supply device (3) comprises a power PCB (31) and a control PCB (32); the power PCB (31) and the control PCB (32) are respectively arranged on a side of the magnetic material layer (42) away from the coil assembly (41); and the magnetic material layer (42) and the power supply device (3) are respectively arranged on opposite sides of the cooling plate (51).

10. The automobile wireless charging transmitter according to claim 9, characterized in that: The cooling medium flow channel (511) is arranged around the power PCB board (31), the control PCB board (32) and the transmitting device (4).

11. The automobile wireless charging transmitter according to claim 9, characterized in that: The cooling plate (51) is made of shielding material.

12. The automobile wireless charging transmitter according to claim 9, characterized in that: It also includes an insulating plate (7), wherein the insulating plate (7) is arranged between the magnetic material layer (42) and the cooling plate (51).

13. The automobile wireless charging transmitter according to any one of claims 5 to 12, characterized in that: The cooling plate (51) comprises a plate body and a sealing cover, the plate body is provided with the cooling medium flow channel (511), and the sealing cover is sealedly connected to the plate body.

14. The automobile wireless charging transmitter according to claim 3, characterized in that: The device also includes a heat dissipation component (5), wherein the heat dissipation component (5) includes a radiator (53) and a fan (54), wherein the radiator (53) is arranged in the charging box, and at least part of the power supply device (3) is arranged in the radiator (53), and a plurality of air guide channels are arranged on the surface of the radiator (53), and the fan (54) is arranged on the side wall of the charging box, and the fan (54) is arranged opposite to the air guide channel of the radiator (53).

15. The automobile wireless charging transmitter according to claim 14, characterized in that: The power supply device (3) comprises a power PCB (31) and a control PCB (32); the coil assembly (41), the magnetic material layer (42) and the control PCB (32) are stacked along the central axis direction of the charging box; the power PCB (31) and the control PCB (32) are arranged in a horizontal direction in the charging box; and the power PCB (31) is arranged on the radiator (53).

16. The automobile wireless charging transmitter according to claim 14, characterized in that: It also includes a second shielding plate (9), which is arranged between the magnetic material layer (42) and the power supply device (3).

17. The automobile wireless charging transmitter according to claim 16, characterized in that: The second shielding plate (9) is provided with a first positioning structure (91), and the magnetic material layer (42) is provided with a second positioning structure (421) corresponding to the first positioning structure (91).

18. The automobile wireless charging transmitter according to claim 14, characterized in that: The power supply device (3) comprises a power PCB (31) and a control PCB (32); the power PCB (31) and the control PCB (32) are respectively arranged on a side of the magnetic material layer (42) away from the coil assembly (41); and at least a portion of the power supply device (3) is arranged on the heat sink (53).

19. The automobile wireless charging transmitter according to claim 14, characterized in that: A third positioning structure (23) is provided in the installation groove (21), and a fourth positioning structure is provided on the heat sink (53); when the heat sink (53) is arranged in the installation groove (21), the fourth positioning structure is adaptively connected to the third positioning structure (23).

20. The automobile wireless charging transmitter according to any one of claims 14 to 19, characterized in that: The side wall of the mounting seat (2) is provided with an escape opening, and the fan (54) is arranged in the escape opening.

21. The automobile wireless charging transmitter according to claim 20, characterized in that: The heat dissipation assembly (5) further comprises a protective plate (55), wherein the protective plate (55) is arranged at the avoidance groove to shield the fan (54).

22. The automobile wireless charging transmitter according to claim 1, characterized in that: It also includes a living body detection device (10) and a foreign body detection device (11), wherein the living body detection device (10) and the foreign body detection device (11) are respectively arranged in the charging box.

23. A car wireless charging system, characterized in that: It comprises the automobile wireless charging transmitter device as claimed in any one of claims 1 to 22, and also comprises a receiving device (13), wherein the transmitting device (4) of the automobile wireless charging transmitter device is wirelessly connected to the receiving device (13).

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