Wireless charging device for electric tractor
A wireless charging and tractor technology, applied in battery circuit devices, electric vehicle charging technology, circuit devices, etc., can solve problems such as hidden safety hazards, troublesome charging operations, and harsh working environments, and achieve the effect of avoiding damage.
Pending Publication Date: 2018-04-06
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology
[0003] At present, the charging method for the power battery pack of electric tractors mainly adopts wired charging, but wired charging will make the charging operation more troublesome, and the charging plug is prone to poor contact and leakage problems during the plugging and unplugging process, resulting in electric sparks, especially during the charging process. During the high-power charging process, it will bring great potential safety hazards
For electric tractors, the operating environment is relatively harsh, especially the ground is mostly uneven, so the wireless power receiving coil cannot be installed on the chassis of the electric tractor like ordinary electric vehicles
Method used
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Embodiment 1
[0029] Embodiment 1: refer to figure 1 . A wireless charging device for an electric tractor, comprising a main controller, a DC power supply module, a filter capacitor, an inverter drive module, an inverter bridge, a resonant circuit at a transmitting end, a resonant circuit at a receiving end, a rectifier bridge, and a power battery pack for an electric tractor;
[0030] The main controller is composed of an embedded processing unit and a CAN communication module; the embedded processing unit is composed of the STM32F407ZET6 minimum system, and the CAN communication module is composed of a CAN bus controller and a CAN transceiver TJA1050 of the STM32F407ZET6 chip; The processing unit communicates with the DC power module through the CAN communication module, and adjusts the output power of the DC power module according to the communication protocol of the power module; Module to adjust the inverter circuit output AC frequency.
[0031] The DC power supply module is EVR700-2...
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The invention relates to a wireless charging device for an electric tractor. The wireless charging device comprises a main controller, a direct current power supply module, a filter capacitor, an inversion driving module, an inverter bridge, a transmitting terminal resonant circuit, a receiving terminal resonant circuit, a rectifier bridge, an LC filter circuit and a power battery pack for the electric tractor, wherein the transmitting terminal resonant circuit is formed by serial connection of a wireless electric energy transmitting coil and a resonant compensation capacitor; and the receiving terminal resonant circuit is formed by serial connection of a wireless electric energy receiving coil and a resonant compensation capacitor. The wireless charging device provided by the invention can be used for wirelessly charging the power battery pack for the electric tractor safely, conveniently and quickly, and lays a foundation for realizing an automatic charging process of an unmanned electric tractor.
Description
technical field [0001] The invention relates to the field of wireless charging, in particular to a wireless charging device for electric tractors. Background technique [0002] Energy shortage and environmental pollution have become important factors restricting the sustainable development of human society. The use of green and environmentally friendly energy will be a new trend in the development of agricultural machinery in the future. As a new type of green agricultural machinery, electric tractors will be widely promoted and applied. [0003] At present, the charging method for the power battery pack of electric tractors mainly adopts wired charging, but wired charging will make the charging operation more troublesome, and the charging plug is prone to poor contact and leakage problems during the plugging and unplugging process, resulting in electric sparks, especially in the process of During the high-power charging process, it will bring great potential safety hazards....
Claims
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IPC IPC(8): B60L11/18H02J7/02H02J50/12
CPCH02J7/025H02J50/12B60L53/12B60L53/30Y02T90/16Y02T10/72Y02T10/70Y02T90/12Y02T10/7072Y02T90/14
Inventor 闫银发韩守强刘莫尘刘双喜李法德宋占华盖顺华许荣浩李承王广瑞
Owner SHANDONG AGRICULTURAL UNIVERSITY