CN217904667U

CN217904667U - Near field communication module applied to high-power wireless charging

Info

Publication number: CN217904667U
Application number: CN202222101364.1U
Authority: CN
Inventors: 石一非; 唐大亮; 汪永洪; 周鹏
Original assignee: Chongqing Tanggula Technology Co ltd
Current assignee: Chongqing Tanggula Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-11-25
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a near field communication module applied to high-power wireless charging, which comprises an isolation module, a card reader and a card, wherein the isolation module, the card reader and the card are sequentially in communication connection; the card comprises a first antenna, a first filter and a first main control chip which are sequentially in communication connection; the first antenna is in communication connection with the card reader. The card reader comprises a second antenna, an impedance matching circuit, a second filter and a second main control chip which are sequentially in communication connection; the second antenna is in communication connection with the first antenna, and the second main control chip is in communication connection with the isolation module. The isolation module comprises an isolation chip and a single chip microcomputer which are in communication connection with each other, and the single chip microcomputer is in communication connection with the second main control chip. The utility model solves the problem that the near field communication technology can not work in the high magnetic field and high voltage environment, creatively combines the near field communication technology and the wireless charging technology, and leads the high-power wireless charging system to complete the identification and pairing function; and the complexity of the system is reduced, and the service life of the system is prolonged.

Description

Near field communication module applied to high-power wireless charging

Technical Field

The utility model relates to the field of communication technology, concretely relates to be applied to near field communication module in high-power wireless charging.

Background

The prior art mainly adopts a photoelectric sensor detection technology, and the principle is that a receiving end is close to a photoelectric sensor beside a transmitting coil, and when the photoelectric sensor senses the existence of the receiving end, a transmitting control box is informed to start. However, the photoelectric sensor detection technology can only sense whether an object exists, cannot acquire identification information of a receiving end, and cannot complete identification pairing of the wireless charging system.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a be applied to near field communication module in high-power wireless charging, its aim at can acquire the identification information of receiving terminal, makes high-power wireless charging system accomplish the discernment and pairs the function.

The utility model provides a near field communication module applied to high-power wireless charging, which comprises an isolation module, a card reader and a card, wherein the isolation module, the card reader and the card are sequentially connected in a communication manner;

the card comprises a first antenna, a first filter and a first main control chip which are sequentially in communication connection; the first antenna is in communication connection with the card reader.

Preferably, the card reader comprises a second antenna, an impedance matching circuit, a second filter and a second main control chip which are sequentially connected in a communication manner; the second antenna is in communication connection with the first antenna, and the second main control chip is in communication connection with the isolation module.

Preferably, the isolation module comprises an isolation chip and a single chip microcomputer which are in communication connection with each other, and the single chip microcomputer is in communication connection with the second main control chip.

Preferably, the isolated chip comprises an ADUM3201ARZ chip.

Preferably, the isolation chip comprises a WRB1203S-3WR2 chip.

Preferably, the card reader employs an approach communication technology.

Preferably, the communication between the reader and the card employs a modem technique.

Preferably, the communication between the card reader and the card adopts FSK modulation and demodulation technology.

The beneficial effects of the utility model are that:

the problem that the near field communication technology cannot work in a high magnetic field and high voltage environment is solved, and the near field communication technology and the wireless charging technology are creatively combined, so that the high-power wireless charging system can complete the identification and pairing function; and the complexity of the system is reduced, and the service life of the system is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As shown in fig. 1, the embodiment of the utility model provides a be applied to near field communication module in high-power wireless charging, including communication connection's isolation module, card reader and card in proper order. The card comprises a first antenna, a first filter and a first main control chip which are sequentially in communication connection; the first antenna is in communication connection with the card reader.

The embodiment of the utility model provides an in, the card comprises antenna and wave filter and main control chip, and the card can not damage at the operational environment of high magnetic field high voltage.

The card reader comprises a second antenna, an impedance matching circuit, a second filter and a second main control chip which are sequentially in communication connection, the second antenna is in communication connection with the first antenna, and the second main control chip is in communication connection with the isolation module. The card reader consists of a main control chip, a filter, an impedance matching circuit and an antenna, and can not be damaged in a high-magnetic-field high-voltage working environment.

The isolation module comprises an isolation chip and a single chip microcomputer which are in communication connection with each other, and the single chip microcomputer is in communication connection with the second main control chip. The isolation chip comprises an ADUM3201ARZ chip and a WRB1203S-3WR2 chip, so that the isolation of a power supply and a communication interface is realized, and the safety and the reliability of the system are ensured.

The embodiment of the utility model provides an in, the singlechip can receive the card reading signal of transmission control box, then goes the main control chip (the second main control chip promptly) of drive card reader according to the signal. And finally, the antenna (namely the second antenna) of the card reader transmits the modulated signal. After the antenna (i.e. the first antenna) of the card is coupled to the signal, the signal is transmitted to the main control chip (i.e. the first main control chip) of the card through the first filter. The communication between the card reader and the card adopts FSK modulation and demodulation technology.

The embodiment of the utility model provides an in, the chip of the same model can be chooseed for use with second main control chip to first main control chip, also can choose for use the chip of different models. The first filter and the second filter can be filters of the same type or filters of different types. The first antenna and the second antenna can be the same type of antenna or different types of antennas. The embodiment of the utility model provides an in, the model of devices such as first main control chip, second main control chip, first wave filter, second wave filter, first antenna, second antenna can be selected according to actual need, does not do the restriction here.

The embodiment of the utility model provides an in, keep apart the module and adopt to keep apart the chip and keep apart communication signal and power are whole to realize the communication of transmission control box and card reader through the singlechip. The card reader adopts Near Field Communication (NFC) technology, and can read the information stored on the card.

A transmitting coil, a receiving coil, an antenna of a card reader and an antenna of a card of the wireless charging system are in a magnetic field, and the coils are mutually coupled to generate high voltage which is difficult to bear. The utility model discloses take filtering measure according to the frequency difference of near field communication technique and wireless charging technique, the irrelevant signal of filtering and near field communication module to guarantee wireless transmitting coil, card reader, the stable work of card under closely and high strength magnetic field that charges.

Wherein the card can be fixed beside the receiving end and the card reader can be fixed beside the transmitting coil. When the receiving end is close to the transmitting end, the main control chip of the card reader transmits a modulation signal through the antenna to communicate with the card, and after the card reader reads the identification information on the card, the identification information is transmitted to the transmitting control box through the isolation module.

The embodiment of the utility model provides a near field communication module for in high-power wireless charging, has solved the problem that near field communication technique can't work in high magnetic field high voltage environment, creatively combines near field communication technique and wireless charging technique, makes high-power wireless charging system accomplish the discernment function of mating; and the complexity of the system is reduced, and the service life of the system is prolonged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A near field communication module applied to high-power wireless charging is characterized by comprising an isolation module, a card reader and a card which are sequentially in communication connection;

2. The near field communication module applied to high-power wireless charging according to claim 1, wherein the card reader comprises a second antenna, an impedance matching circuit, a second filter and a second main control chip which are sequentially connected in a communication manner; the second antenna is in communication connection with the first antenna, and the second main control chip is in communication connection with the isolation module.

3. The NFC module applied to high-power wireless charging according to claim 2, wherein the isolation module comprises an isolation chip and a single chip microcomputer which are in communication connection with each other, and the single chip microcomputer is in communication connection with the second main control chip.

4. The NFC module of claim 3, wherein the isolation chip comprises an ADUM3201ARZ chip.

5. The NFC module of claim 3, wherein the isolation chip comprises a WRB1203S-3WR2 chip.

6. The NFC module applied to high-power wireless charging according to claim 1, wherein the card reader adopts an approach communication technology.

7. The near field communication module applied to high-power wireless charging as claimed in claim 1, wherein the communication between the card reader and the card adopts a modulation and demodulation technology.

8. The NFC module of claim 1, wherein the communication between the card reader and the card is FSK modulation and demodulation.