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Defrosting method for power transmission device, contactless power feeding system, and power transmission device

A non-contact, power-transmitting coil technology, applied in the direction of electric heating devices, circuit devices, battery circuit devices, etc., can solve the problems that the movable part cannot move, cannot start charging, etc.

Active Publication Date: 2021-01-08
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In case of freezing of the ascending mechanism, the movable part cannot move, and there is a danger that charging cannot even be started
However, the invention described in Patent Document 1 does not mention this point, and there is room for improvement.

Method used

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  • Defrosting method for power transmission device, contactless power feeding system, and power transmission device
  • Defrosting method for power transmission device, contactless power feeding system, and power transmission device
  • Defrosting method for power transmission device, contactless power feeding system, and power transmission device

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Embodiment Construction

[0046] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same parts, and description thereof will be omitted.

[0047] (Structure of non-contact power supply system)

[0048] refer to figure 1 and figure 2 , the structure of the contactless power supply system will be described. Such as figure 1 As shown, the contactless power supply system includes a power supply device 100 as a ground-side unit, and a power reception device 200 as a vehicle-side unit. The contactless power supply system supplies power in a non-contact manner from a power supply device 100 arranged at a power supply station or the like to a power receiving device 200 mounted on a vehicle 10 such as an electric vehicle or a hybrid vehicle, and charges a battery 27 mounted on the vehicle 10 .

[0049] The power supply device 100 includes a power transmission device 300 arra...

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PUM

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Abstract

A power transmission device (300) comprises: a movable part (12) that rises and drops with respect to the ground; and an elevating mechanism (17) that raises and lowers the movable part (12). This defrosting method for the power transmission device measures the temperature of the power transmission device (300), compares the measured temperature with a preset threshold value for judging freezing of the power transmission device (300), and judges whether or not the power transmission device (300) is frozen. The defrosting method of the power transmission device excites a power transmission coil(41) when it is judged that the power transmission device (300) is frozen.

Description

technical field [0001] The invention relates to a method for unfreezing a power transmission device, a non-contact power supply system and a power transmission device. Background technique [0002] Conventionally, there is known a technique for contactlessly feeding power from a power transmitting coil installed on the ground to a power receiving coil installed on a vehicle (Patent Document 1). In the invention described in Patent Document 1, a lifting mechanism is used to move the movable part (power transmission coil) in the vertical direction. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: International Publication No. 2015 / 128450 [0006] During periods of low temperature such as winter, the ascending mechanism is in danger of freezing. In the case of freezing of the lifting mechanism, the movable part cannot move, and there is a danger that charging cannot even be started. However, the invention described in Patent Document 1 do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/90H02J7/00H02J50/10
CPCH02J50/10H02J7/00H02J50/90B60L53/39H02J7/0029Y02T10/70Y02T10/7072Y02T90/12Y02T90/14H02J50/80H02J50/12B60L53/12H05B6/105H05B2213/07
Inventor 尾崎美智央
Owner NISSAN MOTOR CO LTD