A passive non-contact charging protection system

Abstract

The application discloses a passive non-contact charging protection system, comprising: a transmitting module, the transmitting module is used for radiating energy outward; a receiving module, the receiving module is used for accepting the energy of the transmitting module; a passive protection module, the passive protection module is arranged on the receiving module, and the passive protection module is used for charging control according to the state of the receiving module. The application protects the stable operation of the transmitting module through the monitoring of the passive protection module; through the synchronous storage of local data and cloud data, the system operation is stable and data transmission is correct; through the passive non-contact hardware structure, the coil transmission structure is reduced, and the power generating unit and the detection unit are decoupled. Based on the simple structure of the transmitting module and the receiving module, most of the subsequent maintenance is concentrated on the passive protection module and the local control module, so that the disassembly is convenient and problem troubleshooting is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a passive non-contact charging protection system. BACKGROUND

[0002] With the popularization of electric vehicles, electric vehicles are gradually changing people's travel mode with their environmental protection and energy saving characteristics. The convenience and safety of charging are always the key problems that need to be solved in the process of popularization of electric vehicles. Wireless charging technology is getting more and more attention in the field of automobile charging because of its advantages such as no physical connection and convenient use. Wireless charging technology not only improves the charging experience of users, but also promotes the intelligentization and networking process of electric vehicle charging infrastructure.

[0003] There are various charging methods, from traditional wired charging to emerging wireless charging, each of which has its unique advantages. Wireless charging technology realizes wireless transmission of electric energy through electromagnetic induction, magnetic resonance or radio waves, etc., completely getting rid of the shackles of cables. Compared with wired charging, wireless charging technology has higher convenience and flexibility, users can charge electric vehicles anytime and anywhere without worrying about the plugging and storage of cables. In addition, wireless charging technology can effectively avoid safety hazards caused by cable wear and tear, improper plugging, etc., and improve the safety of the charging process.

[0004] Wireless charging technology has great potential in the field of electric vehicle charging, but there are still many problems in its actual application. Especially for the large capacity battery and high charging current demand of electric vehicles, the existing wireless charging technology has great safety hazards in the charging process. Due to the large capacity of electric vehicle battery and high charging current, overheat, overcurrent and overvoltage problems may occur during charging, which may cause battery damage and even cause fire accidents and other safety accidents. The traditional charging protection scheme relies on active circuits, which not only increases the complexity and cost of the system, but also reduces the reliability of the system. Active circuits need additional power supply and control system to monitor and regulate voltage, current and temperature parameters during charging process. Once these systems fail or fail, it will directly affect the safety and stability of the charging process. SUMMARY

[0005] The embodiment of the present application provides a passive non-contact charging protection system to solve the problems of complex, high cost and low reliability of the traditional charging protection scheme in the prior art, which affects the safety and stability of the charging process.

[0006] In one aspect, the embodiment of the present application provides a passive non-contact charging protection system, comprising:

[0007] The transmitting module is configured to radiate energy outward.

[0008] a receiving module for accepting the energy of the transmitting module;

[0009] a passive protection module arranged on the receiving module, the passive protection module being used for charging control according to the state of the receiving module;

[0010] a local control module for storing the monitoring data of the transmitting module, the receiving module and the passive protection module, the local control module controlling the transmitting module, the receiving module and the passive protection module through a wireless network;

[0011] a remote control module connected with the local control module through the Internet, the remote control module being provided with a visual control terminal;

[0012] The transmitting module is welded on the ground of a parking area, the receiving module is arranged on the bottom of a vehicle, and the passive protection module is arranged on the receiving module.

[0013] In a possible implementation, the transmitting module comprises a waterproof shell, a transmitting coil, a transmitting power control unit and a transmitting heat dissipation auxiliary unit, the transmitting coil is installed in the waterproof shell, the transmitting coil is controlled through the transmitting power control unit, and the transmitting heat dissipation auxiliary unit is arranged below the transmitting coil.

[0014] In a possible implementation, the receiving module comprises a receiving coil, a receiving rectification unit, a receiving power control unit and a receiving heat dissipation unit, the receiving rectification unit, the receiving power control unit and the receiving coil are electrically connected.

[0015] In a possible implementation, the local control module comprises a local storage unit, a local communication unit and a local control unit, and the local communication unit is electrically connected with the local storage unit and the local control unit.

[0016] In a possible implementation, the passive protection module comprises a voltage detection unit, a current detection unit, a temperature detection unit and a passive control unit, the voltage detection unit, the current detection unit and the temperature detection unit are electrically connected with the passive control unit, and the voltage detection unit, the current detection unit and the temperature detection unit are arranged on the receiving module.

[0017] In a possible implementation, the remote control module comprises a remote communication unit, a cloud storage unit and a visual mobile terminal.

[0018] The passive non-contact charging protection system has the following advantages:

[0019] (1) Through the voltage detection unit of the passive protection module, the voltage change of the transmitting coil is indirectly monitored through the electromagnetic coupling relationship with the transmitting module. At the same time, through the non-contact temperature detection unit, the detected overheating condition is alarmed. Finally, based on the current detection unit, the current change in the receiving coil is monitored, and by analyzing the waveform, phase and other characteristics of the receiving current, combined with the known electromagnetic coupling model, the working state of the transmitting module is indirectly evaluated. If abnormal current is detected, appropriate protective measures are taken. The stable operation of the transmitting module is monitored and protected.

[0020] (2) Through the synchronization of local data and cloud data, the system operation is stable and the data transmission is correct.

[0021] (3) Through the passive non-contact hardware structure, the coil transmission structure is reduced, and the power generating unit and the detection unit are decoupled. Based on the simple structure of the transmitting module and the receiving module, most of the subsequent maintenance is concentrated in the passive protection module and the local control module, which is convenient to disassemble and simple to troubleshoot. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 A structure diagram of a passive non-contact charging protection system provided by the embodiment of the present application;

[0024] Figure 2 A passive protection module of a passive non-contact charging protection system provided by the embodiment of the present application;

[0025] Figure 3 A control system diagram of a passive non-contact charging protection system provided by the embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Figure 1A structural schematic diagram of a passive non-contact charging protection system provided by the embodiment of the present application; the embodiment of the present application provides a passive non-contact charging protection system, which comprises:

[0028] A transmitting module, which is used for radiating energy outwardly;

[0029] A receiving module, which is used for accepting the energy of the transmitting module;

[0030] A passive protection module, which is arranged on the receiving module and is used for charging control according to the state of the receiving module;

[0031] A local control module, which is used for storing the monitoring data of the transmitting module, the receiving module and the passive protection module, and is used for controlling the transmitting module, the receiving module and the passive protection module through a wireless network;

[0032] A remote control module, which is connected with the local control module through the Internet and is provided with a visual control terminal;

[0033] The transmitting module is welded on the ground of a parking area, the receiving module is arranged on the bottom of a vehicle, and the passive protection module is arranged on the transmitting module;

[0034] The transmitting module comprises a waterproof shell, a transmitting coil, a transmitting power control unit and a transmitting heat dissipation auxiliary unit, the transmitting coil is installed in the waterproof shell, the transmitting coil is controlled through the transmitting power control unit, the transmitting heat dissipation auxiliary unit is arranged below the transmitting coil, the receiving module comprises a receiving coil, a receiving rectifier unit, a receiving power control unit and a receiving heat dissipation unit, and the receiving rectifier unit, the receiving power control unit and the receiving coil are electrically connected.

[0035] For example, Figure 2 , 3The receiving module receives the energy emitted by the transmitting coil of the transmitting module through the receiving coil in a non-contact manner for charging purposes. During the charging process, the power generation coil generates an alternating magnetic field. When current passes through the transmitting coil, an alternating magnetic field is generated. This magnetic field can penetrate the air gap and reach the receiving module. The local control module transmits the monitored magnetic flux (T), alternating frequency (Hz), waveform characteristics, magnetic field direction, magnetic field distribution, and other data to the remote control module for uploading to the cloud. At the same time, the module will prioritize the embedded algorithm issued by the cloud edge collaboration to perform preliminary operation and analysis on the data locally. For abnormal data, the stop program will be started. For complex data, the cloud big data center will perform ETL, dimension splitting, data analysis and operation processes after uploading to the cloud. Finally, according to the calculation results, the corresponding adjustment instructions are issued to the local control module. The ETL is the process of data extraction, transformation, and loading. The magnetic flux (T), alternating frequency (Hz), waveform characteristics, magnetic field direction, and magnetic field distribution data are summarized and sorted through ETL.

[0036] In one possible embodiment, the passive protection module includes a voltage detection unit, a current detection unit, a temperature detection unit, and a passive control unit. The voltage detection unit, current detection unit, and temperature detection unit are electrically connected to the passive control unit, and are arranged on the receiving module. The remote control module includes a remote communication unit, a cloud storage unit, and a visual mobile terminal.

[0037] For example, the voltage detection unit of the passive protection module indirectly monitors the voltage change of the transmitting coil through electromagnetic coupling with the transmitting module. At the same time, the non-contact temperature detection unit notifies the alarm for the detected overheating condition. Finally, based on the current detection unit monitoring the current change in the receiving coil, the working state of the transmitting module is indirectly evaluated by analyzing the waveform, phase, and other characteristics of the received current, combined with the known electromagnetic coupling model. If abnormal current is detected, appropriate protective measures are taken. The remote control module receives data from the local control module through the remote communication unit, stores it through the cloud storage unit, and then remotely visualizes the control through the visual mobile terminal.

[0038] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0039] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A passive non-contact charge protection system, characterized by, The application relates to a wireless charging system for vehicles, which comprises the following parts: a transmitting module for radiating energy outward; a receiving module for accepting the energy of the transmitting module; a passive protection module arranged on the receiving module, which is used for charging control according to the state of the receiving module; a local control module for storing monitoring data of the transmitting module, the receiving module and the passive protection module, which controls the transmitting module, the receiving module and the passive protection module through a wireless network; a remote control module connected with the local control module through the Internet, which is provided with a visual control terminal; the transmitting module is welded on the ground of a parking area, the receiving module is arranged on the bottom of a vehicle, and the passive protection module is arranged on the receiving module; the passive protection module comprises a voltage detection unit, a current detection unit, a temperature detection unit and a passive control unit, the voltage detection unit, the current detection unit and the temperature detection unit are electrically connected with the passive control unit, and the voltage detection unit, the current detection unit and the temperature detection unit are arranged on the receiving module; the voltage detection unit of the passive protection module indirectly monitors the voltage change of the transmitting coil through electromagnetic coupling relationship with the transmitting module, simultaneously gives an alarm notification on the detected overheating condition through the non-contact temperature detection unit, finally monitors the current change in the receiving coil based on the current detection unit, and indirectly evaluates the working state of the transmitting module by analyzing the waveform and phase characteristics of the receiving current and combining an electromagnetic coupling model.

2. A passive non-contact charge protection system according to claim 1, wherein, the transmitting module comprises a waterproof shell, a transmitting coil, a transmitting power control unit and a transmitting heat dissipation auxiliary unit, the transmitting coil is installed in the waterproof shell, the transmitting coil is controlled through the transmitting power control unit, and the transmitting heat dissipation auxiliary unit is arranged below the transmitting coil.

3. A passive non-contact charge protection system as claimed in claim 1, wherein, the receiving module comprises a receiving coil, a receiving rectification unit, a receiving power control unit and a receiving heat dissipation unit, the receiving rectification unit, the receiving power control unit and the receiving coil are electrically connected.

4. A passive non-contact charge protection system as claimed in claim 1, wherein, the local control module comprises a local storage unit, a local communication unit and a local control unit, and the local communication unit is electrically connected with the local storage unit and the local control unit.

5. A passive non-contact charge protection system as claimed in claim 1, wherein, the remote control module comprises a remote communication unit, a cloud storage unit and a visual mobile terminal.

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