CN103812201A - Battery car wireless intelligent charger and charging method - Google Patents

Abstract

The invention relates to a wireless charging device and a charging method for a battery car. A wireless charging device for a battery car includes a transmitting end and a receiving end. The power frequency switch step-down unit, the wavelet frequency multiplication unit, the transmitting coil unit, and the nano-antenna unit are connected in sequence, and the first communication unit and the first control unit are respectively connected to the transmitting coil unit; the receiving end is connected to the battery system of the battery car, and the The receiving end is sequentially connected by a nano-antenna unit, a receiving coil unit, a high-frequency rectification and filtering unit, a second control unit, and a second communication unit. Another technical solution of the present invention is to provide a charging method using the above wireless charging device. The invention has the beneficial effects of ensuring the safety and convenience of charging, and at the same time ensuring the safety of the battery car and electricity.

Description

A wireless smart charger for battery car and charging method

technical field

The invention relates to the technical field of high-efficiency wireless intelligent charging of battery cars, in particular to a charging and anti-theft method using high-efficiency nano-antennas and the Internet of Things and an implementation method in a dedicated system thereof.

Background technique

At present, with the popularity of battery cars, there are two problems:

1. Due to the small number of supporting garages in the community, many battery cars can only be parked downstairs or in public open-air garages. When charging, pull out a plug board from home or charge with a simple socket in a public garage. Electric shock accidents caused by charging in thunderstorms , Explosions caused by charging in summer, and fires caused by charging in autumn are not uncommon.

2. The socket is set in the open air, and anyone can charge it, which will cause the power to be stolen.

2. Parking in the open air, the phenomenon of car and battery being stolen is serious, resulting in property loss.

Contents of the invention

The technical problem to be solved by the present invention is the inconvenience of charging the battery cars of residents on and above the second floor of the old community and the problems that the battery cars are often stolen.

The object of the present invention is to provide a charging device and a charging method that can not only ensure charging safety and anti-theft, but also solve charging inconvenience. This purpose is achieved by:

A wireless charging device for a battery car, comprising a transmitter and a receiver, characterized in that the transmitter is buried underground and connected to a mains power supply, and the transmitter is composed of a power frequency switch step-down unit, a wavelet frequency multiplication unit, a transmitter The coil unit and the nano-antenna unit are connected in sequence, and the first communication unit and the first control unit are connected to the transmitting coil unit respectively; The frequency rectification and filtering unit, the second control unit, and the second communication unit are connected in sequence.

Further, the receiving end further includes a load protection unit, and the load protection unit is connected between the high-frequency rectification and filtering unit and the second control unit.

Further, the receiving end further includes a gap compensation unit, and the gap compensation unit is connected between the high-frequency rectification and filtering unit and the load protection unit.

Further, the transmitting end further includes a first anti-theft unit, and the first anti-theft unit is connected to the transmitting coil unit.

Further, the receiving end further includes a second anti-theft unit, and the second anti-theft unit is connected to the second control unit.

Another technical solution of the present invention is to provide a wireless charging method using the above wireless charging device for battery cars, characterized in that the steps are:

Step 1: After the transmitter is connected to the mains, the power frequency switch step-down unit and the wavelet frequency multiplication unit are used to generate magnetism, and then electricity is generated through the transmitter coil unit, and the information is transmitted through the nano-antenna unit; the nano-antenna unit at the receiver receives The signal transmitted from the transmitting end, the receiving coil unit receives the power generated by the transmitting end through the signal transmitted by the nano-antenna; and adjusts the generated electricity to a suitable rated voltage and rated current for the battery of the battery car through the high-frequency rectification and filtering unit , to charge the battery;

Step 2: After the battery car starts charging, the secondary closed-loop control is performed on whether the battery car is charged through the second control unit, and the information is transmitted to the transmitter through wireless means. The first control unit of the transmitter performs a secondary control on whether the transmitter continues to generate electricity. Closed-loop control, the first control unit at the transmitting end and the second control unit at the receiving end communicate wirelessly to complete the first-level closed-loop control;

Step 3: After the battery car starts charging, the first communication unit and the second communication unit communicate wirelessly, complete the first-level closed-loop control, and send the information to the owner's mobile phone;

Further, when an abnormal situation occurs, the load protection unit at the receiving end transmits the information to the second control unit through wireless, and the second control unit transmits the information to the first control unit at the transmitting end through wireless, terminates the charging, and communicates The unit transmits the information to the owner.

Furthermore, when the battery car is being charged, if the battery car is not parked at a preset position, the gap compensation unit is activated by the second control unit at the receiving end to adjust the position deviation of the battery car to ensure smooth charging of the battery car.

Further, the transmitting end should pre-store the information of the charged bottle car battery, and the receiving end should pre-store the information of the transmitting end, so that the receiving end and the transmitting end form a one-to-one correspondence. When the battery information of the storage battery car is different, start the first anti-theft unit, and transmit information to the owner through the first communication unit; And transmit information to the owner through the second communication unit.

The beneficial effects of the present invention are: 1. Avoid putting down the 220V electric wire from the window on a high building, attract lightning strikes, etc., and ensure charging safety; 2. Avoid disassembling the heavy battery every day, and move upstairs and downstairs; Lost outdoors or in public garages; 4. Avoid power loss in public garages.

Description of drawings

FIG. 1 is a schematic diagram of a wireless charging device in the present invention.

Fig. 2 is a schematic diagram of the composition of the transmitting end of the wireless charging device.

FIG. 3 is a schematic diagram of the composition of the receiving end of the wireless charging device.

Figure 4 is a schematic diagram of the shape of the transmitting coil at the transmitting end.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of a wireless charging device, including a transmitter located underground and a receiver connected to the battery of the battery car.

Figure 2 shows the structure of the transmitting end of the wireless charging device, which is connected in sequence by a power frequency switch step-down unit, a wavelet frequency multiplication unit, a transmitting coil unit, and a nano-antenna unit, the first communication unit, the first anti-theft unit and the first control unit Connect the transmitting coil units respectively. After the transmitter is connected to a 220V power supply, the power frequency switch step-down unit and the wavelet frequency multiplication unit generate magnetism, and the transmitter coil unit converts the magnetism into electricity to complete the energy conversion. The nano-antenna is used to transmit signals, and the first communication unit is used to send The owner transmits information, the first anti-theft unit is used to control the theft of electricity, and the first control unit is used to control the transmission of electric energy, signal transmission, and whether the nano-antenna works.

Figure 3 shows the structure of the receiving end of the wireless charging device, which is connected in sequence by a nano-antenna unit, a receiving coil unit, a high-frequency rectification and filtering unit, a gap compensation unit, a load protection unit, a second control unit, and a second communication unit. The anti-theft unit is connected to the second control unit. The nano-antenna unit is used to receive the information transmitted by the nano-antenna unit at the transmitting end, the receiving coil unit is used to receive the energy transmitted by the transmitting coil unit at the transmitting end, and the high-frequency rectification and filtering unit is used to adjust the power received by the receiving coil, and the received The electric current and voltage of the electric car are adjusted to the rated voltage and current specified by the battery car battery. When there is an error in the parking position of the battery car, the gap compensation unit starts to work to ensure the smooth charging of the battery car battery. When the voltage and current are abnormal, the load protection unit starts. , stop the charging action, the second communication unit is used to transmit information to the owner, the second anti-theft unit is used to prevent the car from being stolen, and the second control unit is used to control the transmission of electric energy, signal transmission, and whether the nano-antenna works.

Figure 4 is a schematic diagram of the shape of the transmitting coil at the transmitting end. The saddle-shaped coil expands the internal capacity of the coil, and more nanomaterials can be placed inside to ensure the power generation.

The working process of the above wireless charging device is as follows: After the transmitter is connected to a 220V power supply, the magnetism is generated by the power frequency switch step-down unit and the wavelet frequency multiplication unit; the magnetism is converted into electricity by the transmitter coil unit, and the energy conversion is completed by the nano-antenna unit. The generated electricity is transmitted, and the nano-antenna unit at the receiving end receives the electricity transmitted by the nano-antenna at the transmitting end, and through the adjustment of the high-frequency rectification unit, it reaches the rated voltage and current specified by the battery of the battery car, and then transmits it to the battery of the battery car. After the battery car starts charging, the second control unit performs secondary closed-loop control on whether the battery car is charged, and transmits the information to the transmitter through wireless means. The first control unit of the transmitter performs secondary closed-loop control on whether the transmitter continues to generate electricity. The first control unit at the transmitting end and the second control unit at the receiving end communicate wirelessly to complete the first-level closed-loop control to control whether the battery of the battery car continues to be charged; at the same time, after the battery car starts charging, the first communication unit and the second communication unit pass through Communicate wirelessly, complete the first-level closed-loop control, and send the information to the owner's mobile phone; when the charging of the battery car battery is completed, the charging is suspended through the control of the second control unit at the receiving end, and the charging completion information is sent to The first control unit at the transmitting end, the first control unit transmits the information to the nano-antenna unit to terminate charging.

During the charging process, when abnormal conditions occur, such as high and low voltage and current, the load protection unit at the receiving end transmits the information to the second control unit through wireless, and the second control unit transmits the information to the transmitter through wireless. The first control unit at the end terminates the charging and transmits the information to the owner through the communication unit.

When the battery car is being charged, if the location where the battery car is parked is not the preset position, the gap compensation unit is activated by the second control unit at the receiving end to adjust the position deviation of the battery car to ensure smooth charging of the battery car.

Before the battery car is charged, the transmitting end should pre-store the information of the charged battery car battery, and the receiving end should pre-store the information of the transmitting end, so that the receiving end and the transmitting end form a one-to-one correspondence relationship. When charging starts, the information received by the communication unit of the transmitting end and When the pre-stored battery information of the battery car is different, start the first anti-theft unit and transmit information to the owner through the first communication unit; when the information received by the communication unit at the receiving end is different from the pre-stored information at the transmitting end, start the second anti-theft unit , and transmit information to the owner through the second communication unit.

According to the above, the present invention can be realized. Other changes and modifications made by those skilled in the art without departing from the spirit and protection scope of the present invention are still included in the protection scope of the present invention.

Claims (9)

1. A battery car wireless charging device, comprising a transmitter and a receiver, characterized in that the transmitter is buried underground and connected to the mains power supply, and the transmitter is composed of a power frequency switch step-down unit and a wavelet frequency multiplication unit , the transmitting coil unit, and the nano-antenna unit are connected in sequence, and the first communication unit and the first control unit are connected with the transmitting coil unit respectively; , the high-frequency rectification and filtering unit, the second control unit, and the second communication unit are connected in sequence. 2. The wireless charging device for battery cars according to claim 1, characterized in that said receiving end further comprises a load protection unit, said load protection unit is connected between said high-frequency rectification and filtering unit and said second between control units. 3. The battery vehicle wireless charging device according to claim 1 or 2, characterized in that the receiving end further includes a gap compensation unit, and the gap compensation unit is connected between the high-frequency rectification and filtering unit and the between load protection units. 4. The wireless charging device for battery vehicles according to claim 3, wherein the transmitting end further includes a first anti-theft unit, and the first anti-theft unit is connected to the transmitting coil unit. 5 . The wireless charging device for battery vehicles according to claim 4 , wherein the receiving end further includes a second anti-theft unit, and the second anti-theft unit is connected to the second control unit. 6. A wireless charging method using the battery car wireless charging device according to claim 5, characterized in that: Step 1: After the transmitting end is connected to the mains, generate magnetism through the power frequency switch step-down unit and the wavelet frequency multiplication unit, and then Generate electricity through the transmitting coil unit, and transmit information through the nano-antenna unit; the nano-antenna unit at the receiving end receives the signal transmitted from the transmitting end, and the receiving coil unit receives the electricity generated by the transmitting end through the signal transmitted by the nano-antenna; and through The high-frequency rectification and filtering unit adjusts the generated electricity to a suitable rated voltage and rated current suitable for the battery of the battery car, and charges the battery; Step 2: After the battery car starts charging, the second control unit performs a secondary closed-loop on whether the battery car is charged or not Control, and transmit the information to the transmitting end by wireless means, the first control unit of the transmitting end performs secondary closed-loop control on whether the transmitting end continues to generate electricity, the first control unit of the transmitting end and the second control unit of the receiving end communicate through wireless means, Complete the first-level closed-loop control; Step 3: After the battery car starts charging, the first communication unit and the second communication unit communicate wirelessly to complete the first-level closed-loop control and send the information to the owner's mobile phone. 7. The wireless charging method of the battery vehicle wireless charging device according to claim 6, characterized in that, when an abnormal situation occurs, the load protection unit at the receiving end transmits the information to the second control unit, and the second control unit wirelessly transmits the information to the second control unit. The information is transmitted to the first control unit at the transmitting end, the charging is terminated, and the information is transmitted to the owner through the communication unit. 8. The wireless charging method of the battery car wireless charging device according to claim 6 or 7, characterized in that, when the battery car is being charged, if the location where the battery car is parked is not a preset position, the second control unit at the receiving end starts The gap compensation unit adjusts the position deviation of the battery car to ensure the smooth charging of the battery car. 9. The wireless charging method of the battery car wireless charging device according to claim 8, characterized in that, the transmitting end should pre-store the information of the charged battery car battery, and the receiving end should pre-store the information of the transmitting end, so that the receiving end and the transmitting end form a one-to-one Corresponding relationship, when starting to charge, when the information received by the communication unit of the transmitting end is different from the pre-stored battery information of the battery car, the first anti-theft unit is activated, and the information is transmitted to the owner through the first communication unit; when the communication unit of the receiving end receives When the received information is different from the pre-stored information of the transmitting end, the second anti-theft unit is started, and the information is transmitted to the owner through the second communication unit.

Images