NFC antenna, charging cabinet and electric vehicle

An antenna and charging compartment technology, applied in the field of near-field communication, can solve the problems of distinguishing the orientation of lithium batteries, exponential weakening of communication signals, and incorrect orientation of lithium batteries.

CN112332089APending Publication Date: 2021-02-05EAST GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-02-05

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Abstract

The invention relates to an NFC antenna, a charging cabinet and an electric vehicle; the NFC antenna comprises a substrate and a radiation sheet arranged on the surface of the substrate, the radiationsheet is provided with at least two induction areas on the substrate, and a penetration area is formed between two adjacent induction areas. After the NFC antenna rotates by a preset angle, any one induction area is at least partially overlapped with one induction area before rotation. Each induction area can receive radio frequency signals sent by the lithium battery, when the lithium battery isplaced into the battery bin or the charging bin according to different angles, the NFC antenna rotates by a preset angle relative to the lithium battery, and therefore, magnetic lines of force sent by the lithium battery can penetrate through the different induction areas, and communication with a vehicle or a charging and battery replacing cabinet is achieved. Moreover, the metal object of the lithium battery can be arranged in the range of the penetration area, so that the attenuation of the metal object to the magnetic line of force is obviously reduced. Therefore, the lithium battery canbe placed into an electric vehicle or a charging and battery replacing cabinet at different angles, communication is not affected, and use is more convenient.
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Description

technical field

[0001] The invention relates to the technical field of near field communication, in particular to an NFC antenna, a charging and changing cabinet and an electric vehicle. Background technique

[0002] With the popularization and use of lithium batteries, various two-wheeled and tricycles on the market have used lithium batteries in large quantities. In order to solve the universal problem of lithium batteries, the NFC (Near Field Communication) communication solution is widely used in the communication between lithium batteries and vehicles and charging cabinet devices.

[0003] Metal objects are not allowed within the magnetic flux range of the NFC antenna, otherwise the communication quality of the NFC will be greatly reduced. The NFC antenna on the battery side generally cannot be centered. Therefore, when lithium batteries are placed in charging and changing cabinets or vehicles, there is a problem of directionality. Once placed in the wrong direction,...

Examples

Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...