CN219086885U

CN219086885U - Vehicle-mounted double-coil wireless charger

Info

Publication number: CN219086885U
Application number: CN202220209361.7U
Authority: CN
Inventors: 张伟胜
Original assignee: Shenzhen Jinmeiyi Technology Co ltd
Current assignee: Shenzhen Jinmeiyi Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2023-05-26
Anticipated expiration: 2032-01-25

Abstract

The utility model provides a vehicle-mounted double-coil wireless charger which comprises a shell, a charging coil, a PCB (printed circuit board) and left and right clamps, wherein the shell is formed by connecting a front shell and a rear shell in a matched mode. The beneficial effects of the utility model are as follows: the horizontal screen and the vertical screen are switched by one-key rotation, so that the double-charging coil is convenient to use and high in applicability.

Description

Vehicle-mounted double-coil wireless charger

Technical Field

The utility model relates to a wireless charger field of on-vehicle, especially a wireless charger of on-vehicle double coil.

Background

The existing vehicle-mounted wireless charger is generally a single coil, the compatibility is not good, and particularly under the conditions that the existing vehicle-mounted wireless charger is various in quick charging protocols and different in charging specification of mobile phones, the applicability of the single coil is obviously reduced. In addition, the existing vehicle-mounted wireless charger is basically fixed and cannot rotate or rotate manually.

Disclosure of Invention

In order to solve the drawbacks pointed out in the prior art. The utility model provides a vehicle-mounted double-coil wireless charger, which adopts double charging coils, has strong applicability, automatically rotates by 90 degrees, and is convenient for switching a transverse screen and a vertical screen, and is realized by the following technical scheme.

The utility model provides a wireless charger of on-vehicle double coil, includes casing, charge coil, PCB board and left and right clip that forms by preceding shell and backshell cooperation connection, its characterized in that still contains two motors in the casing, a plurality of circular gear, the PCB board is connected with first motor and second motor control, the PCB board is used for checking charge signal and button signal and sends control signal, first motor drives circular gear rotation according to the signal, circular gear drives left and right clip relative motion, the second motor is used for making the casing make 90 degrees rotations, adjusts the horizontal screen state of cell-phone or erects the screen state.

Further, the charging coil is a double coil built in the shell, and the double coil supports QC3.0/QC2.0/PD3.0+PPS multiple fast charging input protocols and supports 15W/10W/7.5W/5W multiple output powers.

Further, the maximum value of the stroke of the left clip and the right clip is 177mm, the minimum value of the stroke of the left clip and the right clip is 137mm, and the 4 steps of the bottom support end of the clip are manually adjusted.

Further, the electric motor control device further comprises a key for controlling the motors, the key comprises a first key and a second key, the two motors are controlled independently, the first key is used for controlling the first motor to be used for controlling the switch of the left clamp and the right clamp to be closed, and the second key is used for controlling the second motor to be used for supporting 90-degree rotation.

Further, when the vertical screen clamps and charges, the MCU of the PCB board can identify the current position, the MCU can preferentially enable the mobile phone to rotate 90 degrees and return to the horizontal screen, and the clamp can be automatically opened when the mobile phone is stable.

Further, the circuit board comprises an MCU chip, a first MOS tube and a second MOS tube, and the MCU is connected with the first MOS tube or the second MOS tube respectively to form an H-bridge oscillation loop.

Further, the MCU chip is connected with the transmitting ends of the first charging coil and the second charging coil and is used for inducing voltage changes generated by the first charging coil and the second charging coil.

Further, the first motor drives the left clamp and the right clamp to move relatively through the circular gear, the inner side of the clamp is provided with a transmission groove, the transmission groove is of a semi-open structure, and the width of the groove is larger than the diameter of the circular gear, so that the circular gear is coated after the left clamp and the right clamp are installed.

Further, one groove wall of the transmission groove is provided with a rack matched with the circular gear, and the rack is in meshed connection with the circular gear.

The beneficial effects of the utility model are as follows: the horizontal screen and the vertical screen are switched by one-key rotation, so that the double-charging coil is convenient to use and high in applicability.

Drawings

Fig. 1 is a schematic diagram of the front structure of the wireless charger of the present utility model.

Fig. 2 is a schematic diagram of the back structure of the wireless charger of the present utility model.

Fig. 3 is a schematic cross-sectional structure of fig. 1.

Fig. 4 is an exploded view of the wireless charger of the present utility model.

Fig. 5 is a schematic diagram of stent state switching according to the present utility model.

Fig. 6 is a schematic diagram of a circuit board structure of the present utility model.

Reference numerals in the drawings: 1-a panel; 2-a front shell; 3-a light guide plate; 4-a charging coil; 5-clip press; 6-a clip; 7- -anti-slip glue; 8-clip fixation clips; 9-capacitance; 10-a PCB board; 11-an electric motor; 12-a circular gear; 13-a rotating electric machine fixing frame; 14-fixing a rotating shaft; 15-a rear shell; 16-a first key; 17-a second key; 18-a shoe anti-skid adhesive; 19-shoe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-5, a vehicle-mounted double-coil wireless charger comprises a shell formed by connecting a front shell 2 and a rear shell 15 in a matched manner, a charging coil 4, a PCB board 10 and a clamp 6, wherein the shell also comprises two motors 11 and a plurality of circular gears 12, the PCB board 10 is in control connection with the two motors 11, the PCB board is used for checking a charging signal and a key signal to send out a control signal, a first motor 11a drives the circular gears 12 to rotate according to the signal, the circular gears drive a left clamp 6 and a right clamp 6 to move relatively, and a second motor 11b enables the shell to rotate at an angle of 90 degrees and is used for adjusting a horizontal screen state or a vertical screen state of a mobile phone.

The motor 11 is a stepping motor and comprises a first motor 11a, the first motor 11a drives the left clamp 6 and the right clamp 6 to move relatively through a circular gear, a transmission groove 61 is formed in the inner side of the clamp, the transmission groove is of a semi-open structure, the width of the transmission groove is larger than the diameter of the circular gear, and the circular gear is coated after the left clamp and the right clamp are installed. One of the groove walls of the transmission groove is provided with a rack 62 cooperating with the circular gear, said rack being in meshed connection with the circular gear.

The maximum value of the stroke of the left clip 6 and the right clip 6 on the two sides of the shell is 177mm, the minimum value is 137mm, and the spacing between the clip bases 19 can be manually adjusted.

The first motor 11a is fixed in the motor groove 151 of the rear case 15 by screws. The motor slot 151 is located at a non-center of the rear case.

The motor further includes a second motor 11b, and the second motor 11b is fixed in the motor mounting hole 152 of the rear case 15. The rotating shaft of the second motor is connected with the rotating fixed shaft 14. The second motor is a stepping motor, and is set to rotate 90 degrees clockwise and counterclockwise, and when the screw thread of the rotation fixing shaft 14 is fixedly connected with the mounting bracket fixed on the vehicle, the whole shell rotates along with the motor. The mounting bracket is a vehicle accessory and is not in the solution of the utility model.

The shell is also provided with keys for controlling the motors, each key comprises a first key 16 and a second key 17, the two motors are respectively and independently controlled, the first key 16 is used for controlling the first motor 11a to be used for controlling the switch of the left clamp and the right clamp to be closed, the second key 17 is used for controlling the second motor 11b to be used for supporting 90-degree rotation.

The first key 16 is arranged on the back of the rear shell and is matched with a circuit on the PCB, and the operation key generates a control signal on the circuit board and sends the control signal to the first motor to start the left clip and the right clip to move relatively.

The second key 17 is arranged on the side surface of the rear shell and is matched with a circuit on the PCB, and the operation key generates a control signal on the circuit board and sends the control signal to the second motor to start the bracket to rotate.

A front case 2 is provided with a panel 1 on one face for decoration. The other face is provided with a mounting groove for mounting the light guide plate 3 and the charging coil 4. The light guide plate and the charging coil 4 are connected with the PCB by wires.

The front shell 2 and the rear shell 15 are matched in an installation space formed by the front shell and the rear shell, and are used for installing the left clip 6 and the right clip 6. The left clip and the right clip are oppositely arranged at two sides of the bracket, the transmission groove of the left clip and the right clip is matched with the round gear. Racks in the transmission grooves of the left clip and the right clip are also oppositely arranged, and when the circular gear rotates, the left clip and the right clip relatively move inwards or outwards.

The left clamp 6 and the right clamp 6 are fixed through the clamp fixing frame 8, the clamp fixing frame 8 is in a long strip shape, and two side edges are protruded to form a chute, so that the left clamp 6 and the right clamp 6 can move in the chute. The ends of the left clip 6 and the right clip 6 are provided with clip anti-slip glue 7 for clamping the mobile phone.

The PCB 10 and the capacitor 9 are fixed in the bottom shell, the PCB 10 is connected with the capacitor 9, and the capacitor is used for supplying power to the PCB 10 and the motor. The capacitor 9 is a rechargeable power supply that is charged by a power supply structure on a circuit board that has a power management circuit. The power management circuit is prior art and is not described in detail here.

A bottom bracket 19 is fixedly arranged on one side surface of the bracket, the bottom bracket 19 is arranged in the bottom shell, and the end part of the bottom bracket is positioned on the side surface of the bracket and is adjacent to the left clip and the right clip. The inner side of the end part of the base is stuck with a base anti-slip adhesive 18. The collet is used for clamping the mobile phone in a matched mode with the left clamp and the right clamp. The distance between the base and the bracket can be manually adjusted, so that the base is used for adapting to mobile phones with different sizes.

As shown in fig. 6, when the vertical screen is clamped and charged, the MCU of the PCB board recognizes the current position, and the MCU can rotate the mobile phone by 90 degrees to return to the horizontal screen, and the clamp can be opened automatically when the mobile phone is stable. The circuit board comprises an MCU chip, a first MOS tube and a second MOS tube, wherein the MCU is connected with the first MOS tube or the second MOS tube respectively to form an H-bridge oscillation loop.

The charging coil 4 includes a first charging coil and a second charging coil, which differ in output power. The MCU chip is connected with the transmitting ends of the first charging coil and the second charging coil and is used for inducing voltage changes generated by the first charging coil and the second charging coil.

In a specific embodiment of the present utility model, as shown in fig. 6, when a mobile phone with a fast charging protocol supporting QI standard wireless charging is placed on a product device, a coil of a transmitting end of the mobile phone induces a load, and an MCU chip on a circuit board forms a data communication packet according to a voltage change of the coil of the transmitting end, and then identifies whether the mobile phone is a mobile phone or a foreign object. If the mobile phone is detected, the MCU chip sends out a control signal to drive the first MOS tube on the circuit board to form an H-bridge oscillation loop, so that the transmitting end coil has analog alternating current, and an electromagnetic field is generated to transmit and charge the secondary coil.

In a specific embodiment of the utility model, when a mobile phone supporting wireless charging is placed on a product device, a coil of a transmitting end of the mobile phone senses a load, if the mobile phone is detected, an MCU chip sends a control signal to drive a second MOS tube on a circuit board to form an H-bridge oscillation loop, so that an analog alternating current is arranged in the coil of the transmitting end, and an electromagnetic field is generated to carry out transmission charging on a secondary coil.

In a specific embodiment of the utility model, the first charging coil and the second charging coil support QC3.0/QC2.0/PD3.0+PPS multiple fast charge input protocols and 15W/10W/7.5W/5W multiple output powers.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art who is skilled in the art to which the present utility model pertains should make equivalent substitutions or modifications according to the technical scheme of the present utility model and its inventive concept within the scope of the present utility model.

Claims

1. The utility model provides a wireless charger of on-vehicle double coil, includes casing, charge coil, PCB board and left and right clip that forms by preceding shell and backshell cooperation connection, its characterized in that still contains two motors in the casing, a plurality of circular gear, the PCB board is connected with first motor and second motor control, the PCB board is used for checking charge signal and button signal and sends control signal, first motor drives circular gear rotation according to the signal, circular gear drives left and right clip relative motion, the second motor is used for making the casing make 90 degrees rotations, adjusts the horizontal screen state of cell-phone or erects the screen state.

2. The vehicle-mounted dual-coil wireless charger according to claim 1, wherein the maximum value of the stroke of the left and right clamps is 190mm and the minimum value is 140mm.

3. The vehicle-mounted dual-coil wireless charger according to claim 1, further comprising a key for controlling the motors, wherein the key comprises a first key and a second key, the first key is used for controlling the first motor to be used for controlling the switch of the left clip and the right clip to be closed, and the second key is used for controlling the second motor to be used for supporting 90-degree rotation, and the two motors are respectively controlled independently.

4. The vehicle-mounted double-coil wireless charger according to claim 1, wherein the PCB comprises an MCU chip, a first MOS tube and a second MOS tube, and the MCU is connected with the first MOS tube or the second MOS tube respectively to form an H-bridge oscillation loop.

5. The vehicle-mounted double-coil wireless charger according to claim 4, wherein the MCU chip is connected with the transmitting ends of the first charging coil and the second charging coil and is used for inducing voltage changes generated by the first charging coil and the second charging coil.

6. The vehicle-mounted double-coil wireless charger according to claim 1, wherein the first motor drives the left clip and the right clip to move relatively through the circular gear, a transmission groove is formed in the inner side of the clip, the transmission groove is of a semi-open structure, and the width of the transmission groove is larger than the diameter of the circular gear, so that the circular gear is covered after the left clip and the right clip are installed.

7. The vehicle-mounted double-coil wireless charger according to claim 6, wherein one of the groove walls of the transmission groove is provided with a rack matched with a circular gear, and the rack is in meshed connection with the circular gear.