A mobile wireless charger and an intelligent automatic alignment system for cars

Abstract

The present invention belongs to the field of wireless chargers and aims to provide a base-mobile wireless charger and an intelligent automatic alignment system for automobiles. The system comprises a wireless charger mounted on the ground and a protruding receiver mounted on the automobile. The wireless charger comprises a base and a wireless transmitter mounted on the base; the wireless transmitter comprises a wireless transmitting coil; a fixed portion movable relative to the base is disposed at the bottom of the base; a positioning recess is disposed on the base; a positioning protrusion is disposed on the fixed portion and engages with the positioning recess; a movable mechanism is disposed within the base; the movable mechanism is connected to the fixed portion; the wireless transmitter further comprises a controller and a distance sensor; the controller is electrically connected to the distance sensor; and the controller is electrically connected to the movable mechanism. The wireless charger is movable and is provided with a distance sensor capable of sensing the position of the receiver on the automobile. By moving the wireless charger, the positional alignment of the wireless charger and the receiver is achieved.

Description

Technical Field

[0001] The present invention relates to the field of wireless chargers, and in particular to a base-mobile wireless charger and an intelligent automatic alignment system for a car. Background Art

[0002] A battery electric vehicle (BEV) is a vehicle that uses an onboard power source, an electric motor to drive its wheels, and complies with all road traffic and safety regulations. Electric vehicle charging methods are categorized into two main types: wired charging and wireless charging. Wireless charging, or contactless charging, involves installing a wireless charging transmitter on the ground and a receiver board on the underside of the vehicle. To charge, the vehicle is parked over the transmitter, aligning the receiver board with the transmitter. The transmitter emits electromagnetic waves, which the receiver board receives and converts into electrical current, resulting in charging. Wireless charging is gaining increasing acceptance due to its ease of use.

[0003] Because the position deviation between the charger and the receiver on the car needs to be within a small range to achieve a good charging effect, however, the wireless charger is set on the ground and is in the blind spot of the car driver, making it difficult for the driver to determine the location of the wireless charger. Summary of the Invention

[0004] The present invention provides a base-mobile wireless charger and an intelligent automatic alignment system for a car. The wireless charger is movable and is provided with a distance sensor that can sense the position of a receiver on the car. By moving the wireless charger, the position correspondence between the wireless charger and the receiver is achieved.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A base-mobile wireless charger and an intelligent automatic alignment system for automobiles, comprising a wireless charger disposed on the ground and a protruding receiver disposed on the automobile; the wireless charger comprises a base and a wireless transmitter disposed on the base; the wireless transmitter is provided with a wireless transmitting coil; a fixing portion movable relative to the base is provided at the bottom of the base; a positioning recess is provided on the base; a positioning protrusion is provided on the fixing portion that cooperates with the positioning recess; a moving mechanism is provided within the base; the moving mechanism is connected to the fixing portion; the wireless transmitter is also provided with a controller and a distance sensor; the controller is electrically connected to the distance sensor; and the controller is electrically connected to the moving mechanism.

[0007] Further configuration: the moving mechanism includes two screw fixing seats arranged in the base and fixedly connected to the base respectively; a rotatable screw is arranged between the two screw fixing seats; a first motor is arranged at one end of the screw, and the screw is transmission-connected to the motor; a screw nut is also sleeved on the screw; an opening is provided on the base, and the screw nut passes through the opening and is fixedly connected to the fixed part; the controller is electrically connected to the first motor.

[0008] Further configuration: the moving mechanism includes a rack arranged in the base and fixedly connected to the base; a moving gear is engaged on the rack; a second motor is arranged on the moving gear; an opening is provided on the base, and the second motor passes through the opening and is fixedly connected to the fixed part; the controller is electrically connected to the second motor.

[0009] Further configuration: the moving mechanism includes a synchronous belt, a driving pulley, a driven pulley and a third motor; both ends of the synchronous belt are fixedly connected to the fixed part; the driving pulley is connected to the third motor; the third motor is arranged in the base and fixedly connected to the base; the driven pulley is arranged in the base and rotatably connected to the base; the synchronous belt is sleeved on the outside of the driving pulley and the driven pulley.

[0010] Further configuration: the distance sensor is arranged in the center of the wireless charger.

[0011] Further configuration: a protective plate is provided above the wireless transmitter; the protective plate is fixedly connected to the base respectively; there are two distance sensors, which are respectively provided on the top of the wireless transmitter and at both ends along the translation direction of the moving mechanism.

[0012] Further configuration: proximity switches are provided on both sides of the wireless transmitter; and the controller is electrically connected to the proximity switches.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. A distance sensor is installed on the wireless charger to sense the protruding receiver on the car, thereby determining the relative position of the receiver and the wireless charger;

[0015] 2. Set up a moving mechanism so that the wireless charger can move relative to the car to achieve the position correspondence between the wireless charger and the receiver;

[0016] 4. Setting a proximity switch can prevent the wireless charger from colliding with the car tire when moving laterally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the structure of the wireless charger in Example 1;

[0018] Figure 2 This is a schematic diagram of the structure of the wireless charger in Example 2;

[0019] Figure 3 This is a schematic diagram of the structure used to illustrate the movement of the wireless charger in Example 1;

[0020] Figure 4 This is a schematic diagram of the structure used to illustrate the movement of the wireless charger in Example 1;

[0021] Figure 5 This is a structural diagram for illustrating the movement of the wireless charger in Example 4;

[0022] Figure 6 This is a structural diagram for illustrating the movement of the wireless charger in Example 4;

[0023] Figure 7 This is a structural diagram for illustrating the movement of the wireless charger in Example 3;

[0024] Figure 8 A schematic diagram of the structure of a wireless charger is shown in Example 3.

[0025] In the figure, 1. receiver; 2. car; 3. base; 5. wireless transmitter; 6. distance sensor; 7. screw; 8. fixing seat; 9. nut; 14. proximity switch; 16. rack; 17. moving gear; 18. first motor; 19. second motor; 21. protection plate; 22. synchronous belt; 23. driving pulley; 24. driven pulley; 26. positioning recess; 27. positioning protrusion; 28. fixing part. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0028] Example 1: A mobile wireless charger and an intelligent automatic alignment system for a car, such as Figure 1 、 3As shown in Figures 4 and 5, the wireless charger comprises a ground-mounted wireless charger and a protruding receiver 1 mounted on a vehicle 2. The wireless charger comprises a base 3 and a wireless transmitter 5 mounted on the base 3. The wireless transmitter 5 houses a wireless transmitting coil. A fixed portion 28 is provided at the bottom of the base 3, movable relative to the base 3. A positioning recess 26 is provided on the base 3. A positioning protrusion 27 is provided on the fixed portion 28, which engages with the positioning recess 26. A movable mechanism is provided within the base 3. The movable mechanism is connected to the fixed portion 28. The wireless transmitter 5 is also provided with a controller and a distance sensor 6. The controller is electrically connected to the distance sensor 6. The controller is electrically connected to the movable mechanism. Because the receiver 1 protrudes from the vehicle compartment, the distance between the wireless transmitter 5 and the receiver 1 is less than the distance between the wireless transmitter 5 and the bottom of the vehicle 2. The distance sensor 6 can detect whether the receiver 1 is above the wireless transmitter 5. The distance sensor 6 can be a distance sensor, a photoelectric switch, a proximity switch, or an ultrasonic ranging sensor.

[0029] The moving mechanism includes two screw rod 7 mounting brackets 8 disposed within and fixedly connected to the base 3. A rotatable screw rod 7 is disposed between the two mounting brackets 8. A first motor 18 is provided at one end of the screw rod 7, and the motor is in transmission connection with the screw rod 7. A screw rod nut 9 is also sleeved on the screw rod 7. The base 3 has an opening through which the screw rod nut 9 passes and is fixedly connected to a fixing portion 28. A controller is electrically connected to the first motor 18.

[0030] The distance sensor 6 is disposed in the center of the wireless charger.

[0031] Proximity switches 14 are also provided on both sides of the wireless transmitter 5. The controller is electrically connected to the proximity switches 14. Proximity switches 14 are provided to prevent the wireless charger from colliding with the tires of the car 2 when moving laterally.

[0032] This embodiment is used as follows: a moving mechanism drives base 3 to move laterally relative to the lifting device. The lifting device and base 3 are fixed to the ground. When vehicle 2 comes to a complete stop, base 3 is fixed relative to vehicle 2, and the moving mechanism drives base 3 to move laterally relative to vehicle 2. Distance sensor 6 senses the relative position of wireless transmitter 5 and receiver 1 on vehicle 2. When the left edge of receiver 1 is detected, i.e., when the distance detected by distance sensor 6 suddenly decreases by approximately the amount of protrusion of receiver 1 when moving to the right, or when the distance detected by distance sensor 6 suddenly increases by approximately the amount of protrusion of receiver 1 when moving to the left, wireless transmitter 5 is moved laterally to the right a certain distance, so that the horizontal distance between wireless transmitter 5 and receiver 1 is within the error range. When the right edge of the receiver 1 is detected, that is, when moving to the left, the distance detected by the distance sensor 6 suddenly becomes smaller and the decrease amount is approximately equal to the protrusion amount of the receiver 1, or when moving to the right, the distance detected by the distance sensor 6 suddenly becomes larger and the increase amount is approximately equal to the protrusion amount of the receiver 1, the wireless transmitter 5 is moved horizontally to the left for a distance so that the horizontal distance between the wireless transmitter 5 and the receiver 1 is within the error range.

[0033] Example 2: A mobile wireless charger and an intelligent automatic alignment system for a car, such as Figure 2 As shown, the difference from Example 1 is that the moving mechanism includes a rack 16 disposed within and fixedly connected to the base 3. A moving gear 17 is meshed with the rack 16. A second motor 19 is mounted on the moving gear 17. The base 3 has an opening, and the second motor 19 passes through the opening and is fixedly connected to the fixing portion 28. The controller is electrically connected to the second motor 19.

[0034] Example 3: A mobile wireless charger and an intelligent automatic alignment system for a car, such as Figure 7-8 As shown, the difference from Example 1 is that the moving mechanism includes a synchronous belt 22, a driving pulley 23, a driven pulley 24, and a third motor. Both ends of the synchronous belt 22 are fixedly connected to the fixing portion 28. The driving pulley 23 is connected to the third motor. The third motor is disposed within the base 3 and is fixedly connected to the base 3. The driven pulley 24 is disposed within the base 3 and is rotationally connected to the base 3. The synchronous belt 22 is sleeved over the driving pulley 23 and the driven pulley 24.

[0035] Example 4: A mobile wireless charger and an intelligent automatic alignment system for a car, such as Figure 5-6 As shown, the difference from Example 1, Example 2, or Example 3 is that a protective plate 21 is provided above the wireless transmitter 5. The protective plate 21 is fixedly connected to the base 3. There are two distance sensors 6, one on the top of the wireless transmitter 5 and the other at both ends along the translation direction of the moving mechanism.

[0036] This embodiment is used as follows: the distance sensor 6 can sense the relative position of the wireless transmitter 5 and the receiver 1 on the car 2. When the distance sensor 6 located on the left side of the wireless transmitter 5 detects the left edge of the receiver 1, that is, when moving to the right, the distance detected by the distance sensor 6 suddenly decreases by an amount approximately equal to the protrusion of the receiver 1, or when moving to the left, the distance detected by the distance sensor 6 suddenly increases by an amount approximately equal to the protrusion of the receiver 1, the wireless transmitter 5 is moved laterally to the right a certain distance so that the horizontal distance between the wireless transmitter 5 and the receiver 1 is within the error range. When the distance sensor 6 located on the right side of the wireless transmitter 5 detects the right edge of the receiver 1, that is, when moving to the left, the distance detected by the distance sensor 6 suddenly decreases by an amount approximately equal to the protrusion of the receiver 1, or when moving to the right, the distance detected by the distance sensor 6 suddenly increases by an amount approximately equal to the protrusion of the receiver 1, the wireless transmitter 5 is moved laterally to the left a certain distance so that the horizontal distance between the wireless transmitter 5 and the receiver 1 is within the error range.

[0037] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A mobile wireless charger and intelligent automatic vehicle alignment system, comprising a ground-mounted wireless charger and a protruding receiver mounted on the vehicle; characterized in that: The wireless charger includes a base and a wireless transmitter disposed on the base; the wireless transmitter is provided with a wireless transmitting coil; the bottom of the base is provided with a fixed portion that can move relative to the base; the base is provided with a positioning recess; the fixed portion is provided with a positioning protrusion that cooperates with the positioning recess; a moving mechanism is provided in the base; the moving mechanism is connected to the fixed portion; the wireless transmitter is also provided with a controller and a distance sensor; the controller is electrically connected to the distance sensor; the controller is electrically connected to the moving mechanism; The receiver protrudes from the vehicle compartment, the distance between the wireless transmitter and the receiver is less than the distance between the wireless transmitter and the bottom of the vehicle, and the distance sensor can detect whether the receiver is located above the wireless transmitter; During the lateral movement of the wireless charger driven by the moving mechanism, the distance sensor senses the relative position of the wireless transmitter and the receiver on the car. When the distance sensor located on the left side of the wireless transmitter detects the left edge of the receiver, that is, when the distance detected by the distance sensor suddenly decreases and the decrease is approximately equal to the protrusion of the receiver when moving to the right, or when the distance detected by the distance sensor suddenly increases and the increase is approximately equal to the protrusion of the receiver when moving to the left, the wireless transmitter is moved laterally to the right for a distance so that the horizontal distance between the wireless transmitter and the receiver is within the error range. When the distance sensor located on the right side of the wireless transmitter detects the right edge of the receiver, that is, when the distance detected by the distance sensor suddenly decreases and the decrease is approximately equal to the protrusion of the receiver when moving to the left, or when the distance detected by the distance sensor suddenly increases and the increase is approximately equal to the protrusion of the receiver when moving to the right, the wireless transmitter is moved laterally to the left for a distance so that the horizontal distance between the wireless transmitter and the receiver is within the error range. Proximity switches are also provided on both sides of the wireless transmitter to prevent the wireless charger from colliding with the tires of the car when moving laterally. The proximity switches are electrically connected to the controller.

2. The mobile wireless charger and vehicle intelligent automatic alignment system according to claim 1, characterized in that: The moving mechanism includes two screw fixing seats arranged in the base and fixedly connected to the base respectively; a rotatable screw is arranged between the two screw fixing seats; a first motor is arranged at one end of the screw, and the screw is transmission-connected to the first motor; a screw nut is also sleeved on the screw; an opening is provided on the base, and the screw nut passes through the opening and is fixedly connected to the fixing part; the controller is electrically connected to the first motor.

3. The mobile wireless charger and vehicle intelligent automatic alignment system according to claim 1, characterized in that: The moving mechanism includes a rack arranged in the base and fixedly connected to the base; a moving gear is engaged on the rack; a second motor is provided on the moving gear; an opening is provided on the base, and the second motor passes through the opening and is fixedly connected to the fixed part; the controller is electrically connected to the second motor.

4. The mobile wireless charger and vehicle intelligent automatic alignment system according to claim 1, characterized in that: The moving mechanism includes a synchronous belt, a driving pulley, a driven pulley and a third motor; both ends of the synchronous belt are fixedly connected to the fixed part; the driving pulley is connected to the third motor; the third motor is arranged in the base and fixedly connected to the base; the driven pulley is arranged in the base and rotatably connected to the base; the synchronous belt is sleeved on the outside of the driving pulley and the driven pulley.

5. A mobile wireless charger and vehicle intelligent automatic alignment system according to any one of claims 2 to 4, characterized in that: The distance sensor is arranged at the center of the wireless charger.

6. A mobile wireless charger and vehicle intelligent automatic alignment system according to any one of claims 2 to 4, characterized in that: A protective plate is provided above the wireless transmitter; the protective plate is fixedly connected to the base; there are two distance sensors, which are respectively provided on the top of the wireless transmitter and at both ends along the translation direction of the moving mechanism.

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