Mobile phone wireless charging device carried on scooter for use

Abstract

The utility model discloses a mobile phone wireless charging device carried on a scooter for use, which comprises a mobile phone holder fixed on the scooter, and a wireless charging circuit is mounted in the mobile phone holder; the wireless charging circuit comprises a Buck step-down circuit electrically connected with a battery pack in the scooter, the Buck step-down circuit is electrically connected with an output filter circuit, the output filter circuit is electrically connected with a master control SOC chip, the master control SOC chip is electrically connected with a coil voltage demodulation and decoding circuit, a coil current digital demodulation and decoding circuit and an external MOS switching circuit, and the external MOS switching circuit is electrically connected with the Buck step-down circuit. And the external MOS switch circuit is electrically connected with the LC resonance output circuit. The wireless charging structure is simple and practical in circuit, stable in work, capable of meeting the requirements of the wireless charging structure on mobile phones at different positions, and wide in applicability.

Description

Technical Field

[0001] The utility model relates to the field of electricity, and in particular to a mobile phone wireless charging device mounted on a scooter. Background Art

[0002] The electric skateboard is a vehicle based on the traditional human skateboard with an electric kit. It is a common leisure tool on the market, often used for leisure and entertainment and as a means of transportation. The original scooter was mainly aimed at the children's entertainment market, but with the continuous progress of society and the accelerating pace of life, people's ideas have changed. Now more and more adults will buy scooters as a short-distance light means of transportation, which can relieve the pressure of urban road traffic and save travel time on the road.

[0003] As more and more young people are fond of lightweight scooters, the types and styles of scooters launched by various manufacturers are becoming more and more unique, novel, convenient and practical. Modern young people basically carry a mobile phone when they travel. When riding a scooter, they often have to put the mobile phone in a bag or pocket, and cannot answer calls or check messages in time and effectively. In addition, it is very easy for users to take the mobile phone without stopping during driving, which may cause safety accidents. In addition, the mobile phone is prone to low power, and existing scooters do not have a structure for charging mobile phones. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a mobile phone wireless charging device mounted on a scooter.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A mobile phone wireless charging device mounted on a scooter comprises a mobile phone holder fixed on the scooter, wherein a wireless charging circuit is installed in the mobile phone holder; the wireless charging circuit comprises a Buck step-down circuit electrically connected to a battery pack in the scooter, the Buck step-down circuit is electrically connected to an output filter circuit, the output filter circuit is electrically connected to a main control SOC chip, the main control SOC chip is electrically connected to a coil voltage demodulation and decoding circuit, a coil current digital demodulation and decoding circuit and an external MOS switch circuit, and the external MOS switch circuit is electrically connected to an LC resonance output circuit.

[0007] As a further improvement, the main control SOC chip is Ingenic IP6808.

[0008] As a further improvement, the LC resonant output circuit includes a resonant switch detection loop, which is electrically connected to the upper coil LC resonant circuit and the lower coil LC resonant circuit; the upper coil LC resonant circuit is located at the upper part of the mobile phone holder 1, and the lower coil LC resonant circuit is located at the lower part of the mobile phone holder 1.

[0009] As a further improvement, the external MOS switch circuit is a switch full-bridge circuit.

[0010] As a further improvement, the mobile phone holder 1 comprises a mobile phone holder body 2 , L-shaped limit portions 3 are formed at both upper and lower ends of the mobile phone holder body 2 , and protective structures are installed on the left and right sides of the mobile phone holder body 2 .

[0011] As a further improvement, the protection structure includes a torsion spring 4 connected to the mobile phone holder body 2, and the torsion spring 4 is connected to a stopper 5.

[0012] The beneficial effects of the utility model are:

[0013] 1. It can serve as a mobile phone holder, charge the phone during riding, and reduce the potential traffic accidents caused by improper use of mobile phones by riders during riding;

[0014] 2. The whole circuit is simple and practical, works stably, can adapt to the needs of mobile phones with wireless charging structures in different positions, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0016] Figure 1 This is the circuit diagram of the main control chip;

[0017] Figure 2 This is the circuit diagram of the Buck step-down circuit;

[0018] Figure 3 is the circuit diagram of the output filter circuit;

[0019] Figure 4 It is a circuit diagram of a switch full-bridge circuit and a coil current digital demodulation and decoding circuit;

[0020] Figure 5 It is coil voltage demodulation and decoding circuit;

[0021] Figure 6 The circuit diagram of the resonant switch detection loop;

[0022] Figure 7 is a circuit diagram of an upper coil LC resonant circuit and a lower coil LC resonant circuit;

[0023] Figure 8 It is a side view structural diagram of a mobile phone holder installed on a scooter;

[0024] Fig. 9 It is a front view structural schematic diagram of the mobile phone holder. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0026] Example 1

[0027] like Figure 1-7 This is the circuit schematic of the 15W mobile phone wireless charging source used on the scooter. F1 is the resettable fuse at the input end, C1, C48 and C34 are the input filter capacitors at the front end of the Buck circuit, U4 (MK9019) is the front end Buck buck chip, and the built-in Battery of the scooter provides power for the wireless charger, which is stepped down to 12V through the Buck circuit and then provided to the main control chip U1 (Ingenic IP6808) for operation; L2 is the freewheeling inductor of the buck circuit, R33 and R34 are the output voltage regulating resistors; C49, C50 and C52 are the output filter capacitors of the Buck circuit; R01, R02, R03 are the I2C current detection resistors of the main control chip U1.

[0028] U1 (IP6808) is the main control chip, U6 and U7 (VS3622DP2) are external switch dual N-MOS tubes, forming a switch full-bridge circuit; C15, C16, C17, C18 capacitors are connected in parallel with CL1 to form an upper coil LC resonant circuit; C19, C23, C25, C26 capacitors are connected in parallel with CL2 to form a lower coil LC resonant circuit; U5, U8 (VS3622DE), Q1, Q2, Q3, Q4 form a resonant switch detection loop; LED1, R05, R06 form an external light display indication circuit, and its output state is controlled by U1 programming.

[0029] U2 (LM321) operational discharger and peripheral resistors and capacitors form a coil current digital demodulation and decoding circuit; D03, D04 and peripheral resistors and capacitors form a coil voltage demodulation and decoding circuit and an ASK communication circuit.

[0030] When the end user's mobile phone is fixedly placed in the coil area on the wireless charger carried by the scooter, the analog ping of the main control chip of the whole machine detects the wireless receiver on the mobile phone and establishes communication with the receiving end. At this time, the LC switch detection loop works, so that Q1 and Q3 are turned on to provide driving signals for the U8 dual N-MOS, and the LC resonant circuit forms a path. The U6 upper tube and the U7 lower tube that constitute the full-bridge circuit are turned on, and the DC direct current signal input from the front end is converted into a PWM alternating voltage signal, thereby forming an alternating magnetic field that changes according to a rule, and charging the user's mobile phone through electromagnetic induction; conversely, when the user's mobile phone is placed in the coil area under the wireless charger, the LC switch detection loop works at this time, so that Q2 and Q4 are turned on to provide driving signals for the U5 dual N-MOS, and the LC resonant circuit forms a path. The U7 upper tube and the U6 lower tube that constitute the full-bridge circuit are turned on, and the DC direct current signal input from the front end is converted into a PWM alternating voltage signal, forming an alternating magnetic field that changes according to a rule, and then charging the user's mobile phone through electromagnetic induction.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A mobile phone wireless charging device mounted on a scooter, characterized in that: The invention comprises a mobile phone holder (1) fixed on a scooter, wherein a wireless charging circuit is installed in the mobile phone holder (1); the wireless charging circuit comprises a Buck step-down circuit electrically connected to a battery pack in the scooter, the Buck step-down circuit is electrically connected to an output filter circuit, the output filter circuit is electrically connected to a main control SOC chip, the main control SOC chip is electrically connected to a coil voltage demodulation and decoding circuit, a coil current digital demodulation and decoding circuit and an external MOS switch circuit, and the external MOS switch circuit is electrically connected to an LC resonance output circuit.

2. The mobile phone wireless charging device mounted on a scooter as claimed in claim 1, characterized in that: The main control SOC chip is Ingenic IP6808.

3. The mobile phone wireless charging device mounted on a scooter as claimed in claim 1, characterized in that: The LC resonant output circuit comprises a resonant switch detection loop, which is electrically connected to an upper coil LC resonant circuit and a lower coil LC resonant circuit; the upper coil LC resonant circuit is located at the upper part of the mobile phone frame (1), and the lower coil LC resonant circuit is located at the lower part of the mobile phone frame (1).

4. The mobile phone wireless charging device mounted on a scooter as claimed in claim 1, characterized in that: The external MOS switch circuit is a switch full-bridge circuit.

5. The mobile phone wireless charging device mounted on a scooter as claimed in claim 1, characterized in that: The mobile phone holder (1) comprises a mobile phone holder body (2), L-shaped limit portions (3) are formed at both upper and lower ends of the mobile phone holder body (2), and protective structures are installed on the left and right sides of the mobile phone holder body (2).

6. The mobile phone wireless charging device mounted on a scooter as claimed in claim 5, characterized in that: The protective structure comprises a torsion spring (4) connected to the mobile phone holder body (2), and the torsion spring (4) is connected to a stopper (5).

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