Wireless charging switching device, wireless charging assembly and vehicle

Abstract

The utility model relates to the technical field of wireless charging, particularly provides a wireless charging switching device, a wireless charging assembly and a vehicle, and aims to solve the problem that the wireless charging device of the vehicle can use an MPP protocol more quickly, simply and conveniently. In order to achieve the purpose, a charging receiving end coil of the wireless charging switching device is used for receiving a variable magnetic field emitted by a to-be-converted device, and is used for generating alternating current; the charging receiving end controller is connected with the charging receiving end coil and is used for converting alternating current into direct current and carrying out first protocol communication with equipment to be converted; the charging receiving end controller is connected with the charging transmitting end controller; the charging transmitting end controller is connected with the charging transmitting end coil, and is used for converting the direct current into the alternating current and performing second protocol communication with the to-be-charged equipment; the charging transmitting end coil is used for converting the alternating current into a variable magnetic field and providing the variable magnetic field for the to-be-charged device. According to the invention, a new protocol can be rapidly used, and the mobile phone charging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of wireless charging technology, and specifically provides a wireless charging adapter, a wireless charging component, and a vehicle. Background Art

[0002] WPC (Wireless Power Consortium) has released the Qi2.0 wireless charging standard, which adds the MPP (MAGNETIC POWER PROFILE) magnetic wireless charging protocol standard. Prior to this, some mobile phone models (such as iPhone, Samsung, Google, etc.) usually use the EPP (Extended power profile) protocol for charging. Taking the iPhone as an example, it can only achieve 7.5W charging through the EPP protocol. With the update of MPP, some models of mobile phones such as the iPhone can double the power, supporting a maximum power of 15W. In addition, with the opening of Qi2.0 certification, the proportion of mobile phones on the market that support MPP magnetic charging will increase.

[0003] The technology for equipping existing vehicles with on-board wireless charging devices is also relatively mature. In the design of new vehicles, devices related to the MPP protocol can be placed to facilitate more models to match 15W fast charging in the future, avoiding the dilemma that some mobile phones can only achieve 7.5W charging.

[0004] However, for old users who have already purchased the car, since the built-in equipment in their vehicle only supports the EPP protocol and cannot support the MPP protocol, in order to enjoy this power increase, it is necessary to upgrade the hardware to support the MMP protocol. Users have to modify the vehicle's on-board wireless charging device. Whether going to a 4S store or other repair shop, the modification of the vehicle will leave more or less traces of modification, resulting in an increase in potential hidden dangers such as short circuits. In addition, for users, the time cost and modification cost are relatively high, which hinders users from using new technologies.

[0005] Of course, wireless charging devices are not limited to vehicle-mounted wireless charging devices. Other application scenarios equipped with wireless charging devices also have the same problem. For example, home wireless charging desktops (such as computer desks) and other application scenarios all need to be replaced with new equipment. However, wireless charging desktops and vehicle-mounted wireless charging devices are relatively expensive, which has become a problem facing users.

[0006] Accordingly, how to enable wireless charging devices in vehicles of old users or other application scenarios to use the MPP protocol more quickly and easily, improve the charging efficiency of some equipment, and at a lower cost, is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0007] The present application aims to solve the above-mentioned technical problem, namely, how to enable wireless charging devices in vehicles of old users or other application scenarios to use the MPP protocol more quickly and easily, thereby improving the charging efficiency of some equipment while keeping the cost low.

[0008] In a first aspect, the present application provides a wireless charging adapter, the wireless charging adapter comprising a housing, a chamber disposed in the housing, a charging transmitter coil, a circuit board assembly, and a charging receiver coil disposed in the chamber, the circuit board assembly comprising a charging transmitter controller, a master controller, and a charging receiver controller;

[0009] The charging receiving end coil is used to receive the changing magnetic field emitted by the device to be converted and to generate alternating current;

[0010] The charging receiving end controller is connected to the charging receiving end coil, and is used to convert alternating current into direct current, and perform a first protocol communication with the device to be converted;

[0011] The charging receiving end controller is connected to the charging transmitting end controller;

[0012] The charging transmitter controller is connected to the charging transmitter coil, and is used to convert direct current into alternating current, and to communicate with the device to be charged through a second protocol;

[0013] The charging transmitting end coil is used to convert alternating current into a changing magnetic field and provide the changing magnetic field to the device to be charged;

[0014] The main controller is connected to the charging transmitter controller and the charging receiver controller in communication with each other.

[0015] When the above technical solution is adopted, the present application can avoid vehicle modification and enable vehicles that need to be upgraded to use the latest charging protocol, thereby improving the charging efficiency of some mobile phones.

[0016] For the above-mentioned wireless charging adapter, in a possible implementation manner, a first tray and a bracket are further provided in the shell, a receiving groove is provided in the middle part of the bracket, the charging transmitting end coil is provided in the first tray, the circuit board assembly is provided in the receiving groove, and the charging receiving end coil is provided between the bottom of the shell and the bracket, so that the devices in the shell are arranged in sequence from top to bottom as follows: charging transmitting end coil, first tray, bracket, circuit board assembly, charging receiving end coil.

[0017] When the above technical solution is adopted, the wireless charging adapter of the present application is made thinner by the overlapping design of the accommodating groove and the circuit board assembly.

[0018] For the above-mentioned wireless charging adapter, in a possible implementation, a first magnetic shielding member is also provided in the shell, the first magnetic shielding member is provided with a first groove facing the first surface of the shell, the charging transmitting end coil is provided in the first groove, and the first magnetic shielding member is provided in the first tray; wherein the first surface of the shell is the surface close to the device to be charged.

[0019] For the above-mentioned wireless charging adapter, in a possible implementation, a second magnetic shielding member is further provided in the shell, and the second magnetic shielding member is provided with a second groove facing the second surface of the shell, the charging receiving end coil is provided in the groove, and the second magnetic shielding member is provided between the bottom of the shell and the bracket; wherein the second surface of the shell is the surface close to the device to be converted.

[0020] For the above-mentioned wireless charging adapter, in a possible implementation manner, a first through hole is provided on the first magnetic isolation member, and the first through hole is provided on the side wall of the first groove, or on the edge of the first magnetic isolation member; a second through hole is provided on the second magnetic isolation member, and the second through hole is provided on the side wall of the second groove, or on the edge of the second magnetic isolation member.

[0021] When the above technical solution is adopted, the design of the first magnetic shielding member and the second magnetic shielding member makes the charging transmitting end coil and the charging receiving end coil less mutually influenced when the product of the present application is used, and controls the magnetic field inside the product, and also makes the first magnetic shielding member overlap with the first tray and the charging transmitting end coil, and the second magnetic shielding member overlap with the charging receiving end coil, making the overall product thinner. The edge design of the first through hole and the second through hole reduces magnetic leakage.

[0022] For the above wireless charging adapter, in a possible implementation manner, a magnetic attraction portion is further provided at the edge of the charging transmitting end coil in the first tray.

[0023] For the above-mentioned wireless charging adapter, in a possible implementation manner, the first tray is provided with a step, and the magnetic attraction portion is provided above the step so that the height of the magnetic attraction portion is higher than the height of the charging transmitting end coil, and the magnetic attraction portion at least partially overlaps with the height direction of the charging transmitting end coil in the height direction.

[0024] For the above-mentioned wireless charging adapter, in a possible implementation, the magnetic attraction portion includes a first magnet unit and a second magnet unit, the N / S pole of the first magnet unit and the S / N pole of the second magnet unit are attracted and connected to each other, and multiple groups of first magnet units and second magnet units are connected end to end to form a magnetic attraction portion.

[0025] When the above technical solution is adopted, the design of the magnetic attraction part not only fixes the mobile phone more firmly, but also reduces the mutual magnetic disturbance. The overlap of the magnetic attraction part and the charging transmitting end coil also makes the overall device thinner, easier to tighten the clamping cover, and has lower precision requirements.

[0026] For the above-mentioned wireless charging adapter, in a possible implementation manner, a capacitor is further disposed on the side of the bracket, and the capacitor is disposed side by side with the accommodating groove.

[0027] When the above technical solution is adopted, the overlap of the capacitor, the receiving slot and the circuit board assembly makes the wireless charging adapter of the present application thinner.

[0028] For the above-mentioned wireless charging adapter, in a possible implementation manner, a second tray is further disposed in the housing, and the circuit board assembly is disposed in the receiving groove through the second tray.

[0029] For the above wireless charging adapter, in a possible implementation manner, an intermediate support cover is further provided between the second tray and the first tray, and the intermediate support cover is provided on the second tray.

[0030] For the above-mentioned wireless charging adapter, in a possible implementation manner, a protrusion is provided on the first tray facing the second surface of the shell, and an insertion hole is correspondingly provided on the middle support cover, and the protrusion is inserted into the insertion hole so that there is no relative displacement between the first tray and the middle support cover.

[0031] For the above-mentioned wireless charging adapter, in a possible implementation, an intermediate base is further provided below the second tray, a stepped platform is further provided in the accommodating groove of the bracket, the intermediate base is provided on the stepped platform, and the second tray is provided on the intermediate base.

[0032] When the above technical solution is adopted, the magnetic shielding cover design of the second tray and the middle tray cover makes the overall magnetic shielding effect better. The protrusion and insertion hole design of the middle tray cover and the first tray makes the overall product without glue layer, which makes the product thinner, easier to assemble and has better fixing effect. The design of the middle bottom tray and the step platform can more accurately confirm the overlap degree of the second tray, which is more convenient for product quality control and makes the product thinner.

[0033] For the above wireless charging adapter, in a possible implementation manner, the housing includes a base and a pressing cover, and the base is fixedly connected to the pressing cover.

[0034] For the wireless charging adapter described above, in a possible implementation manner, an appearance cover is further provided on the outer side of the compression cover.

[0035] When the above technical solution is adopted, the appearance cover and the clamping cover are designed separately, so that they can respectively respond to different technical problems, so that the top can be stably clamped by the hard clamping cover, and can also play an anti-slip role through the soft rubber appearance cover.

[0036] For the above-mentioned wireless charging adapter, in a possible implementation manner, the charging transmitter coil is provided in multiple groups, the multiple groups of the charging transmitter coil are arranged side by side in the first tray, and the multiple groups of the charging transmitter coil are arranged in parallel.

[0037] When the above technical solution is adopted, multiple groups of charging transmitting end coils are arranged side by side and connected in parallel, so that multiple charging positions can be realized at the same time, which is convenient for charging multiple identical or different devices.

[0038] In addition, the present application also provides a wireless charging component, which includes a wireless charging device and a wireless charging adapter device described in any one of the above technical solutions.

[0039] In addition, the present application also provides a vehicle, which is equipped with the wireless charging adapter described in any one of the above technical solutions, and the device to be converted is a vehicle-mounted wireless charging device.

[0040] Solution 1. A wireless charging adapter, characterized in that the wireless charging adapter comprises a shell, a chamber is arranged in the shell, a charging transmitter coil, a circuit board assembly, and a charging receiver coil are arranged in the chamber, and the circuit board assembly comprises a charging transmitter controller, a master controller, and a charging receiver controller;

[0041] The charging receiving end coil is used to receive the changing magnetic field emitted by the device to be converted and to generate alternating current;

[0042] The charging receiving end controller is connected to the charging receiving end coil, and is used to convert alternating current into direct current, and perform a first protocol communication with the device to be converted;

[0043] The charging receiving end controller is connected to the charging transmitting end controller;

[0044] The charging transmitter controller is connected to the charging transmitter coil, and is used to convert direct current into alternating current, and to communicate with the device to be charged through a second protocol;

[0045] The charging transmitting end coil is used to convert alternating current into a changing magnetic field and provide the changing magnetic field to the device to be charged;

[0046] The main controller is connected to the charging transmitter controller and the charging receiver controller in communication with each other.

[0047] Solution 2. The wireless charging adapter according to Solution 1 is characterized in that a first tray and a bracket are further provided in the housing, and a receiving groove is provided in the middle part of the bracket.

[0048] The charging transmitting end coil is arranged in the first tray,

[0049] The circuit board assembly is arranged in the receiving groove,

[0050] The charging receiving end coil is arranged between the bottom of the housing and the bracket,

[0051] The devices in the housing are arranged in order from top to bottom: a charging transmitting end coil, a first tray, a bracket, a circuit board assembly, and a charging receiving end coil.

[0052] Solution 3. The wireless charging adapter according to Solution 2 is characterized in that a first magnetic shielding member is further provided in the shell, the first magnetic shielding member is provided with a first groove facing the first surface of the shell, the charging transmitting end coil is provided in the first groove, and the first magnetic shielding member is provided in the first tray;

[0053] Wherein, the first surface of the shell is a surface close to the device to be charged.

[0054] Solution 4. The wireless charging adapter according to Solution 3 is characterized in that a second magnetic shielding member is further provided in the shell, the second magnetic shielding member is provided with a second groove facing the second surface of the shell, the charging receiving end coil is provided in the groove, and the second magnetic shielding member is provided between the bottom of the shell and the bracket;

[0055] Wherein, the second surface of the shell is a surface close to the device to be converted.

[0056] Solution 5. The wireless charging adapter according to Solution 4 is characterized in that a first through hole is provided on the first magnetic shielding member, and the first through hole is provided on a side wall of the first groove, or at an edge of the first magnetic shielding member;

[0057] The second magnetic shielding member is provided with a second through hole, and the second through hole is arranged on the side wall of the second groove, or at the edge of the second magnetic shielding member.

[0058] Solution 6. The wireless charging adapter according to Solution 2 is characterized in that a magnetic attraction portion is also provided at the edge of the charging transmitting end coil in the first tray.

[0059] Solution 7. The wireless charging adapter according to Solution 6 is characterized in that the first tray is provided with a step, and the magnetic attraction part is arranged above the step so that the height of the magnetic attraction part is higher than the height of the charging transmitting end coil, and the magnetic attraction part at least partially overlaps with the height direction of the charging transmitting end coil in the height direction.

[0060] Solution 8. The wireless charging adapter according to Solution 7 is characterized in that the magnetic attraction part includes a first magnet unit and a second magnet unit, the N / S poles of the first magnet unit and the S / N poles of the second magnet unit are attracted and connected to each other, and multiple groups of the first magnet units and the second magnet units are connected end to end to form a magnetic attraction part.

[0061] Solution 9. The wireless charging adapter according to Solution 2 is characterized in that a capacitor is also provided on the side of the bracket, and the capacitor is arranged side by side with the accommodating groove.

[0062] Solution 10. The wireless charging adapter according to Solution 2 is characterized in that a second tray is also provided in the housing, and the circuit board assembly is arranged in the receiving groove through the second tray.

[0063] Solution 11. The wireless charging adapter according to Solution 10 is characterized in that an intermediate support cover is provided between the second tray and the first tray, and the intermediate support cover is provided on the second tray.

[0064] Solution 12. The wireless charging adapter according to Solution 11 is characterized in that the first tray is provided with a protrusion facing the second surface of the housing, and an insertion hole is correspondingly provided on the middle support cover, and the protrusion is inserted into the insertion hole, so that there is no relative displacement between the first tray and the middle support cover;

[0065] Wherein, the second surface of the shell is a surface close to the device to be converted.

[0066] Solution 13. The wireless charging adapter according to Solution 10 is characterized in that an intermediate base is provided below the second tray, a step is provided in the receiving groove of the bracket, the intermediate base is provided on the step, and the second tray is provided on the intermediate base.

[0067] Solution 14. The wireless charging adapter according to Solution 1 is characterized in that the shell includes a base and a clamping cover, and the base is fixedly connected to the clamping cover.

[0068] Solution 15. The wireless charging adapter according to Solution 14 is characterized in that an appearance cover is also provided on the outer side of the clamping cover.

[0069] Solution 16. The wireless charging adapter according to Solution 2 is characterized in that the charging transmitter coils are provided in multiple groups, the multiple groups of charging transmitter coils are arranged side by side in the first tray, and the multiple groups of charging transmitter coils are arranged in parallel.

[0070] Solution 17. A wireless charging component, characterized in that the wireless charging component includes a wireless charging device and a wireless charging adapter device described in any one of Solutions 1 to 16.

[0071] Solution 18. A vehicle, characterized in that the vehicle is equipped with a wireless charging adapter according to any one of Solutions 1 to 16, and the device to be converted is a vehicle-mounted wireless charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] The embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0073] Figure 1 This is one of the scenarios in which the wireless charging adapter of this application is applied;

[0074] Figure 2 It is a schematic diagram of the principle of the wireless charging adapter of the present application;

[0075] Figure 3 It is a schematic diagram of the structure of the wireless charging adapter of the present application;

[0076] Figure 4 It is a structural exploded diagram of the wireless charging adapter of the present application;

[0077] Figure 5 is a top view of the wireless charging adapter of the present application;

[0078] Figure 6 yes Figure 5 Sectional view at AA in the middle;

[0079] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0080] Figure 8 It is a schematic diagram of the assembly of the first tray and the middle tray cover;

[0081] Fig. 9 is a schematic diagram of the structure of the bracket;

[0082] Fig.10 is a schematic structural diagram of a first magnetic isolation member;

[0083] Fig.11 It is a schematic structural diagram of the second magnetic isolation component.

[0084] List of reference numerals:

[0085] 01-housing; 011-base; 012-pressing cover; 013-appearance cover; 014-chamber; 015-first surface; 016-second surface;

[0086] 02-Charging transmitter coil;

[0087] 03-Circuit board assembly;

[0088] 04-Charging receiving coil;

[0089] 05-first tray; 051-step; 052-protrusion; 053-first line hole;

[0090] 06-second tray;

[0091] 07-bracket; 071-accommodation slot; 0711-step platform;

[0092] 08-first magnetic isolation member; 081-first groove; 0811-first through hole;

[0093] 09-second magnetic isolation member; 091-second groove; 0911-second through hole;

[0094] 10-middle support cover; 101-insertion hole; 102-second line hole;

[0095] 11-middle bottom support;

[0096] 12-magnetic attraction portion; 121-first magnet unit; 122-second magnet unit; 123-backing ring;

[0097] 13-Capacitor. DETAILED DESCRIPTION

[0098] The following describes the implementation methods of the present application with reference to the accompanying drawings. Those skilled in the art should understand that these implementation methods are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Although this embodiment is described by taking the wireless charging device as a vehicle-mounted wireless charging device as an example, it is obvious that the wireless charging adapter of the present application can also transfer other known wireless charging devices, such as desktop wireless charging devices, etc., and is not limited to vehicle-mounted wireless charging devices.

[0099] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0100] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0101] The following takes the example that the device to be converted is a wireless charging device for a vehicle and the device to be charged is a mobile phone to elaborate on the solution of the present application in detail.

[0102] Figure 1 One of the main application scenarios of the wireless charging adapter of the present application is shown, that is, it is set between the vehicle-mounted wireless charging device and the mobile phone, and the protocol is changed through the wireless charging adapter, and finally the charging power of the mobile phone is increased. It can be understood that the charging device of the present application is not limited to mobile phones, but can also include tablets, laptops, handheld mobile stations, walkie-talkies and other mobile devices with wireless charging functions.

[0103] Combination Figures 2 to 6 , a possible specific implementation of the wireless charging adapter of the present application is developed, wherein, Figure 2 The various devices within the dotted frame, their connection relationships, and their functions together constitute the wireless charging adapter of the present application, and demonstrate the working principle of the wireless charging adapter of the present application.

[0104] In a possible specific implementation of the wireless charging adapter provided by the present application, as shown in the figure, the wireless charging adapter of the present application includes a housing 01, a chamber 014 is arranged in the housing 01, a charging transmitter coil 02, a circuit board assembly 03, and a charging receiver coil 04 are arranged in the chamber 014, and the circuit board assembly 03 includes a charging transmitter controller, a general controller, and a charging receiver controller. It should be noted that the circuit board assembly 03 mentioned in the present application includes a charging transmitter controller, a general controller, and a charging receiver controller. However, this circuit board assembly 03 does not only include these three components in a narrow sense. These three components are mainly named and distinguished by their functions. They can not only be independent charging transmitter controllers, general controllers, and charging receiver controllers, but also integrated controllers integrated on an integral circuit board to complete the functions of these three components. This all-in-one controller can also complete the respective functions of the above three controllers, and also belongs to the circuit board assembly 03 mentioned in the present application. In other words, the circuit board assembly 03 of the present application is not limited to three controllers, but a circuit board assembly 03 of a controller that can realize these functions. It should also be noted that, taking the charging transmitter controller as an example, the charging transmitter controller can be a set of control circuits including a charging transmitter chip, which can realize the second protocol communication with the mobile phone, and can be connected to the charging transmitter coil 02 to convert direct current into alternating current. It can be realized by known prior art. For example, the charging transmitter controller mainly includes structural modules such as a full-bridge module, a filter module, a resonant circuit control module and a communication protocol module. The circuit that can realize the communication function of the charging transmitter controller and the direct current to alternating current function belongs to the technical solution well known to technicians in the field of wireless charging, and will not be elaborated in detail. Similarly, those skilled in the art can realize the circuit board assembly 03 through the functions of the charging transmitter controller, the master controller, and the charging receiving end controller described in this application through the combination of prior art. The focus of this application is not the realization of the functions of the three controllers alone, but how to connect these controllers to form a complete coordination between all control components and execution components, and finally produce the wireless charging adapter of this application. Therefore, the specific composition of the charging transmitter controller, the master controller, and the charging receiving end controller will not be repeated.

[0105] The charging receiving end coil 04 is used to receive the changing magnetic field emitted by the device to be converted (such as a vehicle-mounted wireless charging device) and to generate alternating current. The charging receiving end controller is connected to the charging receiving end coil 04 to convert the alternating current into direct current and to communicate with the device to be converted using the first protocol. Specifically, as the part that interfaces with the vehicle's wireless charging device, the charging receiving end controller communicates with the vehicle's wireless charging device through the first protocol, so that the changing magnetic field emitted by the vehicle's wireless charging device can be converted into alternating current by the charging receiving end coil 04, and then the alternating current is converted into direct current by the charging receiving end controller to perform the next step. Among them, the first protocol may be the EPP protocol, or other vehicle-built-in wireless charging protocols. In the present application, the changing magnetic field generated by the device to be converted or the charging transmitting end coil may be an alternatingly changing electromagnetic field, and energy propagation in the wireless charging process may be achieved with the help of the changing magnetic field.

[0106] The charging receiver controller is connected to the charging transmitter controller. This connection can be a direct connection or an indirect connection through a power conversion chip (DC / DC chip). The charging transmitter controller is used to convert the direct current obtained from the charging receiver controller into the required alternating current with a specific voltage and current.

[0107] The charging transmitter controller is connected to the charging transmitter coil 02, and is used to convert direct current into alternating current, and transmit it to the charging transmitter coil 02, and is used to communicate with the device to be charged using the second protocol. Specifically, the charging transmitter controller transmits alternating current to the charging transmitter coil 02, so that the charging transmitter coil 02 generates a changing magnetic field, and the charging transmitter controller, as the part that is connected to the mobile phone, communicates with the mobile phone through the second protocol. At this time, the second protocol can be the MPP protocol (for example, the latest version of the MPP protocol), so that the changing magnetic field emitted by the charging transmitter coil 02 can be received by the mobile phone, and then converted into charging power through the inside of the mobile phone. During this period, since the charging transmitter controller and the mobile phone can communicate and interact using the MPP protocol, as an intermediate transition, even if the vehicle's wireless charging device is not updated, mobile phones compatible with the second protocol can be charged, thereby improving the charging efficiency of some mobile phones including iPhones. Of course, the second communication protocol can also be other protocols, not limited to the MPP protocol, as long as it can adapt to the device to be charged. Optionally, such as Figure 1 As shown, multiple groups of charging transmitting end coils 02 can be provided, and multiple groups of charging transmitting end coils 02 are arranged in parallel. In this case, simultaneous charging of multiple locations and multiple different products can be achieved.

[0108] The main controller is respectively connected to the charging transmitter controller and the charging receiver controller for overall detection of voltage stability, ensuring smooth communication management, and controlling the overall output stability of the charging transmitter controller and the charging receiver controller.

[0109] So far, the working principle and main structural components of the wireless charging adapter of the present application have been expanded. The wireless charging adapter of the present application can be directly purchased and attached to the vehicle for use without modifying the vehicle. It can be a fixed connection such as pasting or snapping, with low overall cost and more convenience. However, due to the limited application space of the product in different occasions, for example, it is necessary to stack a wireless charging adapter on top of the wireless charging device of the vehicle for use. At this time, the thickness requirements for the wireless charging adapter will be very strict. Based on this problem, the present application proposes a variety of technical solutions to achieve thickness control. The following continues to combine a possible specific implementation method to elaborate on the structural solution of the wireless charging adapter of the present application.

[0110] It should be noted that the present application adopts a design of multiple overlapping technical structures in order to reduce the thickness. The overlapping in the present application means Figure 6 , Figure 7 As shown, in the Z direction of the thickness direction, the charging transmitting end coil 02 and the first magnet unit 121 have an overlapping L2 part and a non-overlapping L1 part in the Z direction. Here, it is explained that the charging transmitting end coil 02 and the first magnet unit 121 are partially overlapped (L2). If L1=0, they are fully overlapped, and if L2=0, they are non-overlapped.

[0111] like Figures 3 to 6 As shown, the housing 01 is also provided with a first tray 05 and a bracket 07, a receiving groove 071 is provided in the middle part of the bracket 07, the charging transmitter coil 02 is provided in the first tray 05, the circuit board assembly 03 is provided in the receiving groove 071, and the charging receiver coil 04 is provided between the bottom of the housing 01 and the bracket 07, so that the devices in the housing 01 are arranged from top to bottom in sequence: the charging transmitter coil 02, the first tray 05, the bracket 07, the circuit board assembly 03, and the charging receiver coil 04. It should be noted that the top-to-bottom referred to in this application means Figure 6 The direction from the first surface 015 to the second surface 016 in the middle Z direction is also the thickness direction of the wireless charging adapter of the present application.

[0112] Compared with directly arranging the charging transmitter coil 02, the first tray 05, the circuit board assembly 03, the bracket 07, and the charging receiver coil 04 in sequence without overlapping, the present application sets a receiving groove 071 in the middle part of the bracket 07, and sets the circuit board assembly 03 in the receiving groove 071, so as to achieve partial or full overlap between the circuit board assembly 03 and the bracket 07, thereby achieving the thinning of the overall wireless charging adapter device. In addition, setting the charging transmitter coil 02 in the first tray 05 also achieves partial or full overlap between the charging transmitter coil 02 and the first tray 05, further reducing the overall thickness of the wireless charging device.

[0113] Continue reading Figures 2 to 6 , Fig.10 , Fig.11 Specifically, a first magnetic shielding member 08 is further provided in the housing 01. The first magnetic shielding member 08 is provided with a first groove 081 facing the first surface 015 of the housing 01. The charging transmitting end coil 02 is provided in the first groove 081. The first magnetic shielding member 08 is provided in the first tray 05; wherein, the first surface 015 of the housing 01 is the surface close to the device to be charged (mobile phone). A first through hole 0811 is provided on the first magnetic shielding member 08. The first through hole 0811 is provided on the side wall of the first groove 081, or is provided at the edge of the first magnetic shielding member 08. A second magnetic shielding member 09 is further provided in the housing 01. The second magnetic shielding member 09 is provided with a second groove 091 facing the second surface 016 of the housing 01. The charging receiving end coil 04 is provided in the groove. The second magnetic shielding member 09 is provided between the bottom of the housing 01 and the bracket 07; wherein, the second surface 016 of the housing 01 is the surface close to the device to be converted (the wireless charging device of the vehicle). The second magnetic isolation member 09 is provided with a second through hole 0911 . The second through hole 0911 is provided on a side wall of the second groove 091 , or at an edge of the second magnetic isolation member 09 .

[0114] Since both the first surface 015 and the second surface 016 of the product need to conduct electromagnetic induction with external equipment, preventing the two from interfering with each other is what the wireless charging adapter of the present application needs to focus on. Therefore, the design of the first magnetic shielding member 08 and the second magnetic shielding member 09 can isolate the magnetic field at the charging transmitting end coil 02 from the magnetic field at the charging receiving end coil 04 and prevent them from interfering with each other. The design of the first groove 081, on the one hand, can enable the first magnetic shielding member 08 and the charging transmitting end coil 02 to partially or fully overlap, thereby reducing the overall thickness of the product. On the other hand, it can also better avoid magnetic leakage of the charging transmitting end coil 02. Similarly, the design of the second groove 091 also achieves the goal of reducing thickness and reducing the risk of magnetic leakage. In order to realize the electrical connection between the charging transmitting end coil 02 and the circuit board assembly 03, a first through hole 0811 is further provided on the first magnetic isolation member 08, and a second through hole 0911 is further provided on the second magnetic isolation member 09. It should be noted that the first through hole 0811 and the second through hole 0911 mentioned in the present application do not specifically refer to holes that are closed on all sides, such as Fig.10 , Fig.11 The opening holes shown in the figure also belong to the type of through holes mentioned in this application. There are also many options for the installation positions of the first through hole 0811 and the second through hole 0911. The through holes can be as follows: Fig.10 The first through hole 0811 shown is at the edge of the first magnetic isolation member 08. For example, the position more than 40% of the total distance away from the center is defined as the edge. Compared with the hole at the center, this design can reduce the leakage of magnetic flux and further improve the stability of the product. Of course, the through hole can also be Fig.11 The second through hole 0911 shown is on the side wall of the second magnetic isolation member 09, and can be an open hole or a hole closed on all sides. The shape of the hole can be rectangular, semicircular, circular, triangular, etc., and those skilled in the art can reasonably open it according to needs.

[0115] Continue reading Figures 2 to 7 Specifically, a magnetic attraction portion 12 is also provided at the edge of the charging transmitter coil 02 in the first tray 05. The first tray 05 is provided with a step 051, and the magnetic attraction portion 12 is provided above the step 051, so that the height of the magnetic attraction portion 12 is higher than the height of the charging transmitter coil 02, and the magnetic attraction portion 12 at least partially overlaps with the height direction of the charging transmitter coil 02 in the height direction. The magnetic attraction portion 12 includes a first magnet unit 121 and a second magnet unit 122, and the N / S poles of the first magnet unit 121 and the S / N poles of the second magnet unit 122 attract and connect with each other, and multiple groups of the first magnet unit 121 and the second magnet unit 122 are connected end to end to form the magnetic attraction portion 12. The first magnet unit 121 and the second magnet unit 122 are fixed by a gasket 123, and then are integrally provided on the step 051.

[0116] In existing vehicles, not all wireless charging devices are equipped with magnetic suction design. For wireless charging devices that are not equipped with magnetic suction design, the mobile phone may not be placed in the middle, which affects the charging efficiency. The wireless charging adapter of this application introduces the design of the magnetic suction part 12 to make up for the shortcomings of existing vehicles, achieve accurate alignment of the mobile phone and the charging transmitter coil 02, and avoid the mobile phone from bumping around on bumpy roads. In addition, Figure 7 As shown, the magnetic attraction part 12 is set to overlap the charging transmitter coil 02 by a dimension of L2, which can not only reduce the thickness of the overall device, but also reduce the magnetic field influence of the magnetic attraction part 12 on the charging transmitter coil 02. In addition, the magnetic attraction part 12 is higher than the L1 dimension of the charging transmitter coil 02, which can enable the clamping cover 012 to simultaneously clamp the magnetic attraction part 12 and the charging transmitter coil 02 by means of a boss, thereby avoiding the situation where one of the charging transmitter coil 02 and the magnetic attraction part 12 is not clamped due to dimensional tolerance. In addition, since the magnetic attraction part 12 itself usually adopts a permanent magnet, its magnetic force is relatively small, and the magnetic attraction part 12 is set closer to the first surface 015, which can also fix the mobile phone more firmly, further realizing the practicality of the product.

[0117] Continue reading Figure 4 , Figure 6 Specifically, a capacitor 13 is also disposed on the side of the bracket 07 , and the capacitor 13 is disposed side by side with the receiving groove 071 .

[0118] As one of the larger components of the present application, the rationality of the arrangement of the capacitor 13 directly affects the overall thickness of the wireless charging adapter device of the present application. On the basis of making the receiving groove 071 overlap with the circuit board assembly 03, the present application also arranges the capacitor 13 and the receiving groove 071 side by side, thereby achieving partial or full overlap of the circuit board assembly 03, the receiving groove 071, and the capacitor 13, which greatly reduces the overall thickness of the product.

[0119] Continue reading Figure 4 , Figure 6 , Figures 8 to 10Specifically, a second tray 06 is further provided in the outer shell 01, and the circuit board assembly 03 is arranged in the receiving groove 071 through the second tray 06. An intermediate support cover 10 is also provided between the second tray 06 and the first tray 05, and the intermediate support cover 10 is covered on the second tray 06. A protrusion 052 is provided on the second surface 016 of the first tray 05 facing the outer shell 01, and an insertion hole 101 is correspondingly provided on the intermediate support cover 10, and the protrusion 052 is inserted into the insertion hole 101, so that there is no relative displacement between the first tray 05 and the intermediate support cover 10; an intermediate bottom support 11 is also provided below the second tray 06, and a stepped platform 0711 is also provided in the receiving groove 071 of the bracket 07, the intermediate bottom support 11 is arranged on the stepped platform 0711, and the second tray 06 is arranged on the intermediate bottom support 11. It should be noted that the insertion hole 101 can be as follows Figure 8 The open hole shown can also be a hole closed on all sides.

[0120] Although the first magnetic isolation member 08 and the second magnetic isolation member 09 are provided, the circuit board assembly 03 itself still has high requirements for magnetic isolation, and in order to achieve electrical connection, the charging transmitter coil 02 needs to pass through the first through hole 0811, the first wire hole 053, and the second wire hole 102 to enter the second tray 06. At this time, there is still some magnetic leakage in the first through hole 0811. Although the amount of magnetic leakage is not large, it is still necessary to take precautions. The same is true for the charging receiver coil 04. Therefore, the wireless charging adapter of the present application is also provided with a second tray 06 and an intermediate support cover 10, which can be used to place the circuit board assembly 03 as a whole, playing the role of a magnetic shielding cover. In order to facilitate the determination of the overlap between the second tray 06 and the receiving groove 071, a step platform 0711 is also provided, and the second tray 06 is set on the step platform 0711 through the intermediate bottom support 11, so that the overlap between the second tray 06 and the receiving groove 071 is always in a preset state without any movement when not fixed, which is convenient for controlling the overall thickness. In addition, Figure 8 As shown, in order to further reduce the overall thickness and ensure the stability of the product structure, the present application further provides a protrusion 052 under the first tray 05, and correspondingly provides an insertion hole 101 on the middle support cover 10, and the protrusion 052 is inserted into the insertion hole 101, so that there is no relative rotation between the two, and the internal whole is finally achieved without displacement by pressing the pressing cover 012. Compared with the solution of adding a glue layer in the middle to fix it, this design saves raw materials and is easier to assemble. Most importantly, the thickness after assembly is the superposition of the thicknesses of the two. Compared with the setting of the glue layer, the solution of the present application at least reduces the space occupied by the glue layer, thereby further reducing the thickness of the wireless charging adapter.

[0121] Continue reading Figure 4 , Figure 6Specifically, the housing 01 includes a base 011 and a compression cover 012, and the base 011 is fixedly connected to the compression cover 012. The compression cover 012 is also sleeved with an appearance cover 013 on its outer side.

[0122] The compression cover 012 can fix the internal structure, and the appearance cover 013 is arranged outside the compression cover 012 to further meet special requirements such as anti-slip and rainproof. Of course, although the present application schematically illustrates the case 01 including the base 011 and the compression cover 012, the case 01 of the present application can obviously also be a chamber 014 formed by the grooves on the left and right sides, and this simple change is within the protection scope of the case 01 of the present application.

[0123] In summary, this application has at least the following advantages:

[0124] 1. The overall structural principle layout enables this application to avoid vehicle modification and also enables vehicles that need to be upgraded to use the latest charging protocol, thereby improving the charging efficiency of some mobile phones.

[0125] 2. The overlapping design of the receiving groove 071 and the circuit board assembly 03 makes the wireless charging adapter of the present application thinner.

[0126] 3. The design of the first magnetic shielding member 08 and the second magnetic shielding member 09 reduces the mutual influence between the charging transmitting end coil 02 and the charging receiving end coil 04 when the product of the present application is used, and controls the magnetic field inside the product, and also makes the first magnetic shielding member 08 overlap with the first tray 05 and the charging transmitting end coil 02, and the second magnetic shielding member 09 overlap with the charging receiving end coil 04, making the overall product thinner. The edge design of the first through hole 0811 and the second through hole 0911 reduces magnetic leakage.

[0127] 4. The design of the magnetic attraction part 12 not only fixes the mobile phone more firmly, but also reduces the mutual magnetic disturbance. The overlap of the magnetic attraction part 12 and the charging transmitter coil 02 also makes the overall device thinner and easier to tighten the pressing cover 012, with lower precision requirements.

[0128] 5. The overlap of the capacitor 13, the receiving slot 071, and the circuit board assembly 03 makes the wireless charging adapter of the present application thinner.

[0129] 6. The magnetic shielding cover design of the second tray 06 and the middle support cover 10 makes the overall magnetic shielding effect better.

[0130] 7. The design of the protrusion 052 and the insertion hole 101 of the middle support cover 10 and the first tray 05 makes the whole product without a glue layer, the product thickness is thinner, the assembly is easier, and the fixing effect is better.

[0131] 8. The design of the middle base 11 and the stepped platform 0711 can more accurately confirm the overlapping degree of the second tray 06, which is more convenient for product quality control and also makes the product thinner.

[0132] 9. The appearance cover 013 and the pressing cover 012 are designed separately, so that they can respectively respond to different technical problems, so that the top can be stably pressed by the hard pressing cover 012, and can also play an anti-slip role through the soft rubber appearance cover 013.

[0133] 10. Multiple groups of charging transmitter coils 02 are arranged side by side, for example, they can be arranged side by side in the first tray 05, and the first tray 05 can be expanded in lateral dimensions accordingly. Multiple groups of charging transmitter coils 02 are connected in parallel, and multiple charging positions can be realized at the same time, which is convenient for charging multiple identical or different devices.

[0134] It should be noted that the above implementation mode is only used to illustrate the principle of the present application and is not intended to limit the scope of protection of the present application. Without departing from the principle of the present application, those skilled in the art can adjust the above structure so that the present application can be applied to more specific application scenarios.

[0135] In addition, the present application also provides a wireless charging component, which includes a wireless charging device and a wireless charging adapter device described in any of the above technical solutions.

[0136] In addition, the present application also provides a vehicle, which is equipped with a wireless charging adapter as described in any one of the above technical solutions, and the device to be converted is a vehicle-mounted wireless charging device. It should be noted that the vehicle referred to in the present application is not limited to a conventional driving vehicle, but may also be other types of vehicles, as long as the vehicle is provided with a wireless charging device capable of charging a mobile device.

[0137] So far, the technical solutions of the present application have been described in conjunction with the specific implementations shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific implementations. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A wireless charging adapter, characterized in that: The wireless charging adapter comprises a shell, a chamber is arranged in the shell, a charging transmitter coil, a circuit board assembly, and a charging receiver coil are arranged in the chamber, and the circuit board assembly comprises a charging transmitter controller, a master controller, and a charging receiver controller; The charging receiving end coil is used to receive the changing magnetic field emitted by the device to be converted and to generate alternating current; The charging receiving end controller is connected to the charging receiving end coil, and is used to convert alternating current into direct current, and perform a first protocol communication with the device to be converted; The charging receiving end controller is connected to the charging transmitting end controller; The charging transmitter controller is connected to the charging transmitter coil, and is used to convert direct current into alternating current, and to communicate with the device to be charged through a second protocol; The charging transmitting end coil is used to convert alternating current into a changing magnetic field and provide the changing magnetic field to the device to be charged; The main controller is connected to the charging transmitter controller and the charging receiver controller in communication with each other.

2. The wireless charging adapter according to claim 1, characterized in that: The housing is further provided with a first tray and a bracket, and a receiving groove is provided in the middle part of the bracket. The charging transmitting end coil is arranged in the first tray, The circuit board assembly is arranged in the receiving groove, The charging receiving end coil is arranged between the bottom of the housing and the bracket, The devices in the housing are arranged in order from top to bottom: a charging transmitting end coil, a first tray, a bracket, a circuit board assembly, and a charging receiving end coil.

3. The wireless charging adapter according to claim 2, characterized in that: A first magnetic shielding member is further provided in the shell, wherein the first magnetic shielding member has a first groove disposed on a first surface facing the shell, the charging transmitting end coil is disposed in the first groove, and the first magnetic shielding member is disposed in the first tray; Wherein, the first surface of the shell is a surface close to the device to be charged.

4. The wireless charging adapter according to claim 3, characterized in that: A second magnetic shielding member is also provided in the shell, and a second magnetic shielding member is provided with a second groove facing the second surface of the shell, the charging receiving end coil is provided in the groove, and the second magnetic shielding member is provided between the bottom of the shell and the bracket; Wherein, the second surface of the shell is a surface close to the device to be converted.

5. The wireless charging adapter according to claim 4, characterized in that: The first magnetic isolation member is provided with a first through hole, and the first through hole is provided on a side wall of the first groove, or at an edge of the first magnetic isolation member; The second magnetic shielding member is provided with a second through hole, and the second through hole is arranged on the side wall of the second groove, or at the edge of the second magnetic shielding member.

6. The wireless charging adapter according to claim 2, characterized in that: A magnetic attraction portion is also provided at the edge of the charging transmitting end coil in the first tray.

7. The wireless charging adapter according to claim 6, characterized in that: The first tray is provided with a step, and the magnetic attraction portion is provided above the step so that the height of the magnetic attraction portion is higher than the height of the charging transmitting end coil, and the magnetic attraction portion at least partially overlaps with the height direction of the charging transmitting end coil in the height direction.

8. The wireless charging adapter according to claim 7, characterized in that: The magnetic attraction portion includes a first magnet unit and a second magnet unit. The N / S poles of the first magnet unit and the S / N poles of the second magnet unit are attracted and connected to each other. Multiple groups of the first magnet units and the second magnet units are connected end to end to form the magnetic attraction portion.

9. The wireless charging adapter according to claim 2, characterized in that: A capacitor is also arranged on the side of the bracket, and the capacitor is arranged side by side with the accommodating groove.

10. The wireless charging adapter according to claim 2, characterized in that: A second tray is also arranged in the shell, and the circuit board assembly is arranged in the accommodating groove through the second tray.

11. The wireless charging adapter according to claim 10, characterized in that: An intermediate support cover is also provided between the second tray and the first tray, and the intermediate support cover is provided on the second tray.

12. The wireless charging adapter according to claim 11, characterized in that: The first tray is provided with a protrusion on the second surface facing the shell, and the intermediate support cover is correspondingly provided with an insertion hole, and the protrusion is inserted into the insertion hole, so that there is no relative displacement between the first tray and the intermediate support cover; Wherein, the second surface of the shell is a surface close to the device to be converted.

13. The wireless charging adapter according to claim 10, characterized in that: An intermediate bottom bracket is further arranged below the second tray, a stepped platform is further arranged in the receiving groove of the bracket, the intermediate bottom bracket is arranged on the stepped platform, and the second tray is arranged on the intermediate bottom bracket.

14. The wireless charging adapter according to claim 1, characterized in that: The shell comprises a base and a pressing cover, and the base is fixedly connected to the pressing cover.

15. The wireless charging adapter according to claim 14, characterized in that: An appearance cover is also sleeved on the outer side of the compression cover.

16. The wireless charging adapter according to claim 2, characterized in that: The charging transmitter coils are provided in a plurality of groups, the plurality of groups of the charging transmitter coils are arranged side by side in the first tray, and the plurality of groups of the charging transmitter coils are arranged in parallel.

17. A wireless charging assembly, characterized in that: The wireless charging component includes a wireless charging device and a wireless charging adapter according to any one of claims 1 to 16.

18. A vehicle, characterized in that: The vehicle is equipped with the wireless charging adapter according to any one of claims 1 to 16, and the device to be converted is a vehicle-mounted wireless charging device.

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