Wireless charging device and vehicle

Abstract

The utility model relates to a wireless charging device and a vehicle, and the wireless charging device comprises an installation seat which is used for placing electronic equipment; the wireless charging body is movably mounted below the mounting seat, and the wireless charging body comprises a coil and a current detection module electrically connected with the coil; and the driving assembly is configured to drive the wireless charging body to move according to the magnitude of the current detected by the current detection module. Therefore, the induction current change and the charging power of the coil are identified through the current detection module, the driving assembly drives the wireless charging body to move according to the current detected by the current detection module, the current signal is judged in real time, and when the induction current is maximum, the position of the wireless charging coil of the electronic equipment is determined. And the maximum charging power and the self-adaptive charging function are realized. The device is high in intelligent degree, and automatic alignment can be carried out according to the size, the placing position and midway movement of the electronic equipment.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wireless charging, and in particular, to a wireless charging device and a vehicle. Background Art

[0002] With the development of wireless charging technology and the popularity of smartphones with wireless charging functions, more and more family cars are equipped with wireless charging devices. However, due to the wide variety of mobile phone specifications and sizes, wireless charging is affected by the degree of coil alignment, and during intense driving, the mobile phone will inevitably shift, resulting in failure to charge, which seriously affects the user experience.

[0003] In the related technology, wireless charging generally uses dual coils or triple coils, which are hidden under the bottom plate of the mobile phone compartment in the car, and realize wireless charging through the mutual inductance of the capacitive induction coil and the mobile phone induction coil. The greater the distance between the placement of the mobile phone and the center of the coil, the fewer coils are working and the lower the charging efficiency; if the mobile phone is biased too much, it cannot be charged. Therefore, it cannot be guaranteed that mobile phones of various sizes can be charged at maximum efficiency when placed randomly; and the adaptability is poor. At present, limit ribs are mostly designed in the mobile phone placement area, but they cannot be applied to mobile phones of various sizes. Utility Model Content

[0004] An object of the present disclosure is to provide a wireless charging device and a vehicle to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above object, the present disclosure provides a wireless charging device, comprising:

[0006] A mounting base for placing electronic equipment;

[0007] A wireless charging body is movably mounted below the mounting base, and the wireless charging body includes a coil and a current detection module electrically connected to the coil; and

[0008] A driving component is configured to drive the wireless charging body to move according to the current detected by the current detection module.

[0009] Optionally, the driving assembly includes a track, a sliding portion slidably mounted on the track, and a first driving module for driving the sliding portion to slide, and the wireless charging body is mounted on the sliding portion.

[0010] Optionally, the track includes a track body and a slide groove formed on a side wall of the track body, the sliding portion is formed with a slider for extending into the slide groove, and the slider can only move along the slide groove.

[0011] Optionally, the sliding portion is configured as a receiving groove covering the top of the track, and the sliding block protrudes from an inner wall of the receiving groove toward the track body.

[0012] Optionally, the first driving module includes:

[0013] A rack, arranged at the top end of the track body;

[0014] a gear, mounted in the receiving groove and configured to mesh with the rack; and

[0015] The first driving motor is fixedly installed in the accommodating groove and is used for driving the gear to rotate.

[0016] Optionally, the driving assembly further includes a rotating connection portion connected to one end of the track and a second driving module for driving the rotating connection portion to rotate around its own center.

[0017] Optionally, the second driving module includes a driving shaft and a second driving motor for driving the driving shaft to rotate, the rotating connecting portion is formed with a mounting hole for the driving shaft to pass through, and the driving shaft is interference fit with the mounting hole.

[0018] Optionally, the wireless charging device also includes a base, the second drive motor is fixedly mounted on the bottom end of the base, one end of the drive shaft is connected to the drive end of the second drive motor, and the other end passes through the base to be connected to the rotating connection part.

[0019] Optionally, a connector is fixedly mounted on the base, and a connecting groove for accommodating the connector is formed on the rotating connecting part. The second driving motor can drive the rotating connecting part to rotate relative to the connector. The outer wall of the connector is formed with a plurality of annular grooves arranged at intervals, and the side walls of the connecting groove are provided with a plurality of annular protrusions matching the annular grooves. The surfaces of the annular grooves and the surfaces of the annular protrusions are both made of conductive materials. The annular protrusions are fixedly connected with the signal wire of the coil along the circumferential direction, and the annular grooves are fixedly connected with an external wire for electrical connection to an external wiring harness along the circumferential direction, and the signal wire is in contact with the external wire so as to be electrically connected.

[0020] Optionally, a through hole is formed on the connector for the drive shaft to pass through, and a gap is provided between the through hole and the drive shaft.

[0021] Optionally, a wire reel for winding the signal line is provided on the rotating connection portion.

[0022] Optionally, the wireless charging device further includes an electric control unit, and the electric control unit is electrically connected to the current detection module and the driving component respectively.

[0023] According to a second aspect of the present disclosure, a vehicle is also provided, comprising the above-mentioned wireless charging device.

[0024] Through the above technical solution, the current detection module identifies the induced current change and charging power of the coil, and the driving component drives the wireless charging body to move according to the current size detected by the current detection module, and judges the current signal in real time. When the induced current is the largest, it is the position of the wireless charging coil of the electronic device, realizing the maximum charging power and adaptive charging function. The wireless charging device can realize that the electronic device can be placed arbitrarily on the mounting base and can be charged with maximum efficiency. The device is highly intelligent and can automatically align according to the size, placement, and mid-movement of the electronic device.

[0025] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0027] Figure 1 is a disassembled schematic diagram of a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0028] Figure 2 is a top view of the assembly of the coil, track and rotating connection part of the wireless charging device provided by an exemplary embodiment of the present disclosure;

[0029] Figure 3 is a top view of a mounting base in a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0030] Figure 4 is a front view of an assembly of a wireless charging body and a sliding part in a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0031] Figure 5 is an assembly front view of a track and a rotating connection part in a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0032] Figure 6 is an assembly top view of a track and a rotating connection part in a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0033] Figure 7 is an assembly front view of a base, a second driving module, and a connector in a wireless charging device provided by an exemplary embodiment of the present disclosure;

[0034] Figure 8It is an assembly top view of a base, a second driving module and a connector in a wireless charging device provided in an exemplary embodiment of the present disclosure.

[0035] Description of Reference Numerals

[0036] 1-mounting seat; 11-slot; 2-base; 3-wireless charging body; 31-coil; 41-sliding part; 411-sliding block; 42-track; 421-track body; 4211-sliding groove; 4212-threading hole; 51-rack; 52-first drive motor; 6-rotating connection part; 61-mounting hole; 71-drive shaft; 72-second drive motor; 8-connector; 81-annular groove; 82-through hole DETAILED DESCRIPTION

[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0038] In the present disclosure, unless otherwise stated, the directional terms "upper", "lower", "top", and "bottom" are defined based on the directions in which the relevant components are actually used. "Inside" and "outside" refer to the contours of the corresponding components themselves. The terms "first", "second", etc. are used to distinguish different components and do not have order or importance. In the present disclosure, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0039] Reference Figures 1 to 8 The present disclosure provides a wireless charging device, which can be equipped with a mounting seat 1, a wireless charging body 3 and a driving component, wherein the mounting seat 1 is used to place an electronic device, wherein a placement groove 11 for placing the electronic device is formed on the mounting seat 1, and the mounting seat 1 can support the electronic device without designing a limiting device, and the placement groove 11 can be designed as a pure plane. Specifically, the electronic device can be a mobile phone, an iPad, a smart watch, etc.; the wireless charging body 3 is movably mounted under the mounting seat 1, and the wireless charging body 3 includes a coil 31 and a current detection module electrically connected to the coil 31, and the current detection module is integrated in the chip of the coil 31. The current detection module can identify the induced current change and charging power of the coil 31. The coil 31 adopts a mature wireless charging coil in the industry, and can be arranged as a single coil, a double coil or a triple coil according to the adaptability; the driving component can be configured to drive the wireless charging body 3 to move according to the current detected by the current detection module.

[0040] Through the above technical solution, the current detection module identifies the induced current change and charging power of the coil, and the driving component drives the wireless charging body to move according to the current size detected by the current detection module, and judges the current signal in real time. When the induced current is the largest, it is the position of the wireless charging coil of the electronic device, realizing the maximum charging power and adaptive charging function. The wireless charging device can realize that the electronic device can be placed arbitrarily on the mounting base and can be charged with maximum efficiency. The device is highly intelligent and can automatically align according to the size, placement, and mid-movement of the electronic device.

[0041] As an exemplary embodiment of the present disclosure, refer to Figure 4 , Figure 5 The driving assembly may include a sliding assembly, which may include a track 42, a sliding portion 41 slidably mounted on the track 42, and a first driving module for driving the sliding portion 41 to slide, the wireless charging body 3 is mounted on the sliding portion 41, and specifically, the coil 31 may be glued on the sliding portion 41. The first driving module coil 31 moves along the track 42 to adjust the coil 31 to a suitable position.

[0042] Further, refer to Figure 4 , Figure 5 The track 42 may include a track body 421 and a slide groove 4211 formed on the side wall of the track body 421. The sliding portion 41 is formed with a slider 411 for extending into the slide groove 4211, and the slider 411 can only move along the slide groove 4211. Grease should be applied to the slide groove 4211 to prevent the slider 411 and the slide groove 4211 from excessive wear and abnormal noise.

[0043] Further, refer to Figure 4 The sliding part 41 can be configured as a receiving groove covering the upper part of the track 42, and the slider 411 protrudes from the inner wall of the receiving groove toward the track body 421. Through the above arrangement, the sliding part 41 can move along the slide groove 4211 above the track 42.

[0044] Among them, reference Figure 4 , Figure 5, the first driving module may include a rack 51, a gear and a first driving motor 52, wherein the rack 51 is arranged at the top of the track body 421, and the rack 51 can be integrally formed by injection molding with the track body 421; the gear is installed in the receiving groove for meshing with the rack 51; the first driving motor 52 is fixedly installed in the receiving groove for driving the gear to rotate. The first driving motor 52 drives the gear to move along the rack 51 to change the position of the coil 31; specifically, the sliding part 41 can be formed by plastic injection molding, and the sliding part 41 forms a track match with the track 42 to ensure the meshing of the gear and the rack 51. It should be noted that the present disclosure does not limit the structure of the first driving module, and it only needs to be able to drive the sliding part 41 to slide on the track 42, which belongs to the protection scope of the present disclosure.

[0045] As an exemplary embodiment of the present disclosure, refer to Figure 5 , Figure 6 , the driving component may also include a rotating component, and the rotating component may include a rotating connection part 6 connected to one end of the track 42 and a second driving module for driving the rotating connection part 6 to rotate around its own center. Specifically, the rotating connection part 6 and the track 42 can be integrally injection molded, and the rotating connection part 6 can also be fixed to one end of the track 42 by a fastener. The second driving module drives the rotating connection part 6 to rotate so that the track 42 rotates around the center of the rotating connection part 6, thereby enabling the wireless charging body 3 on the track 42 to rotate. The present disclosure adjusts the rotation radius of the coil 31 through a sliding component and adjusts the rotation angle of the coil 31 through a rotating component, so that the coil 31 can be adjusted to a desired position, and the current feedback of the current detection module can be used to accurately locate the position of the electronic device in polar coordinates. By driving the coil 31 to locate in a polar coordinate manner through two driving modules, it is possible to realize that the electronic device can be placed arbitrarily in the placement slot and can be charged with maximum efficiency.

[0046] Among them, reference Figure 6 , Figure 7 The second driving module may include a driving shaft 71 and a second driving motor 72 for driving the driving shaft 71 to rotate. The rotating connecting part 6 is formed with a mounting hole 61 for the driving shaft 71 to pass through. The driving shaft 71 is interference-fitted with the mounting hole 61 to transmit rotational power, so that the second driving motor 72 can drive the rotating connecting part 6 to rotate around the driving shaft 71. The driving shaft 71 is located at the center of the rotating connecting part 6. It should be noted that the structure of the second driving module is not limited to this, and it only needs to be able to drive the rotating connecting part 6 to rotate around its own center, and the present disclosure does not limit this.

[0047] Specifically, refer to Figure 7The wireless charging device may further include a base 2, a second drive motor 72 is fixedly mounted at the bottom end of the base 2, one end of the drive shaft 71 is connected to the drive end of the second drive motor 72, and the other end passes through the base 2 to be connected to the rotating connection part 6. In the embodiment of the present disclosure, the wireless charging device can be applied to a vehicle. Specifically, the base 2 can be fixedly engaged with the auxiliary instrument panel of the vehicle to provide a mounting base for the wireless charging device. The base 2 can be connected to the connector 8 by screws, and an opening is formed at a position of the base 2 corresponding to the through hole 82 of the connector 8 for the drive shaft 71 to extend out.

[0048] In some embodiments, reference Figure 7 , a connector 8 can be fixedly installed on the base 2, and a connection groove for accommodating the connector 8 is formed on the rotating connecting part 6. The second driving motor 72 can drive the rotating connecting part 6 to rotate relative to the connector 8. The outer wall of the connector 8 is formed with a plurality of annular grooves 81 arranged at intervals, and a plurality of annular protrusions matching the annular grooves 81 are provided on the side wall of the connecting groove. The surface of the annular groove 81 and the surface of the annular protrusion are both conductive materials, specifically, they can be metal materials. The annular protrusion is fixedly connected with the signal line of the coil 31 along the circumferential direction, and the annular groove 81 is fixedly connected with the external wire for electrical connection with the external wiring harness along the circumferential direction. The signal line contacts the external wire to enable electrical connection. In the embodiment of the present disclosure, the number of the annular groove 81 and the number of the annular protrusions are three respectively, which are used to connect the positive line of the power supply, the common negative line, and the positive line of the signal, respectively. The number of the annular groove 81 and the number of the annular protrusions can be increased or decreased as needed. After the connector 8 and the rotating connecting part 6 are installed and matched in place, the signal line contacts the external wire to conduct, and the annular protrusion can be rotated around the annular groove 81 at will without interruption of the line. Furthermore, the drive shaft 71 may be provided with a connector for connecting to an external wiring harness, and the external wiring harness may be electrically connected to the external wiring harness through the connector on the drive shaft 71. In other embodiments, the annular groove 81 may be formed on the connection groove of the rotating connection part 6, and the annular protrusion may be formed on the outer wall of the connector 8, all of which belong to the protection scope of the present disclosure.

[0049] In some embodiments, reference Figure 8 The connector 8 may be provided with a through hole 82 for the drive shaft 71 to pass through, and there is a gap between the through hole 82 and the drive shaft 71. The connector 8 and the base 2 are fixed, and the drive shaft 71 passes through the through hole 82 to drive the rotating connection part 6 to rotate.

[0050] Furthermore, a wire reel for winding the signal line is provided on the rotating connection part 6. When the coil 31 moves along the track 42 toward the rotating connection part 6, resulting in a shortened distance from the rotating connection part 6, the wire reel can retract the excess wire to prevent the signal line from being entangled and broken. Figure 6The track 42 may be provided with a threading hole 4212 for the signal line to pass through. The signal line of the coil 31 may be connected to the annular protrusion through the threading hole 4212. In addition, the wireless charging device may further include a reducer electrically connected to the second drive motor 72, and the reducer may increase the torque output by the second drive motor 72 to reduce the rotation speed.

[0051] In some embodiments, the wireless charging device may further include an electronic control unit, which is electrically connected to the current detection module and the drive assembly, respectively, and the electronic control unit may be integrated below the coil 31. The current detection module identifies the induced current change of the coil and the charging power input to the electronic control unit, and the electronic control unit controls the drive assembly to drive the wireless charging body 3 to move, and judges the current signal in real time. When the induced current is the maximum, it is the position of the wireless charging coil of the electronic device, realizing the maximum charging power and adaptive charging function. In addition, the electronic control unit can also perform PID speed regulation according to the current feedback of the current detection module.

[0052] According to a second aspect of the present disclosure, a vehicle is also provided, which may include the above-mentioned wireless charging device. The vehicle has all the beneficial effects of the above-mentioned wireless charging device, which will not be described in detail here.

[0053] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A wireless charging device, characterized in that: include: A mounting base for placing electronic equipment; A wireless charging body is movably mounted below the mounting base, and the wireless charging body includes a coil and a current detection module electrically connected to the coil; as well as A driving component is configured to drive the wireless charging body to move according to the current detected by the current detection module.

2. The wireless charging device according to claim 1, characterized in that: The driving assembly comprises a track, a sliding part slidably mounted on the track, and a first driving module for driving the sliding part to slide, and the wireless charging body is mounted on the sliding part.

3. The wireless charging device according to claim 2, characterized in that: The track comprises a track body and a slide groove formed on a side wall of the track body, the sliding portion is formed with a slider for extending into the slide groove, and the slider can only move along the slide groove.

4. The wireless charging device according to claim 3, characterized in that: The sliding portion is configured as a receiving groove which is covered above the track, and the sliding block protrudes from the inner wall of the receiving groove toward the track body.

5. The wireless charging device according to claim 4, characterized in that: The first driving module comprises: A rack, arranged at the top end of the track body; a gear, mounted in the receiving groove and configured to mesh with the rack; and The first driving motor is fixedly installed in the accommodating groove and is used for driving the gear to rotate.

6. The wireless charging device according to any one of claims 2 to 5, characterized in that: The driving assembly further comprises a rotating connection portion connected to one end of the track and a second driving module for driving the rotating connection portion to rotate around its own center.

7. The wireless charging device according to claim 6, characterized in that: The second driving module includes a driving shaft and a second driving motor for driving the driving shaft to rotate. The rotating connecting portion is formed with a mounting hole for the driving shaft to pass through, and the driving shaft is interference-fitted with the mounting hole.

8. The wireless charging device according to claim 7, characterized in that: The wireless charging device also includes a base, the second drive motor is fixedly installed at the bottom end of the base, one end of the drive shaft is connected to the drive end of the second drive motor, and the other end passes through the base to be connected to the rotating connection part.

9. The wireless charging device according to claim 8, characterized in that: A connector is fixedly installed on the base, and a connecting groove for accommodating the connector is formed on the rotating connecting part. The second driving motor can drive the rotating connecting part to rotate relative to the connector. The outer wall of the connector is formed with a plurality of annular grooves arranged at intervals, and the side wall of the connecting groove is provided with a plurality of annular protrusions matching the annular grooves. The surface of the annular groove and the surface of the annular protrusion are both made of conductive materials. The annular protrusion is fixedly connected with the signal wire of the coil along the circumferential direction, and the annular groove is fixedly connected with an external wire for electrically connecting to an external wiring harness along the circumferential direction, and the signal wire is in contact with the external wire to enable electrical connection.

10. The wireless charging device according to claim 9, characterized in that: The connector is provided with a through hole for the driving shaft to pass through, and there is a gap between the through hole and the driving shaft.

11. The wireless charging device according to claim 9, characterized in that: The rotating connection portion is provided with a wire reel for winding the signal wire.

12. The wireless charging device according to claim 1, characterized in that: The wireless charging device further includes an electric control unit, which is electrically connected to the current detection module and the driving component respectively.

13. A vehicle, characterized in that: A wireless charging device comprising any one of claims 1-12.

Images