NON-CONTACT POWER SUPPLY SYSTEM AND POWER TRANSMISSION APPARATUS, AND DESIGNING METHOD AND INSTALLING METHOD OF POWER TRANSMISSION APPARATUS

• US 20180099576A1
• Filed: 10/06/2017
• Published: 04/12/2018
• Est. Priority Date: 10/11/2016
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Iwamoto, Takuya, Nakagawa, Tomoaki
• Granted Patent: US 10,464,442 B2
• Time in Patent Office: Days
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60L 3/00 Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A non-contact power supply system includes a power receiving unit mounted on a vehicle, a power transmitting unit which is disposed on a plane and which transmits electric power to the power receiving unit in a non-contact manner, and a housing which projects in a vertical direction from the plane and which accommodates the power transmitting unit. The housing has a height in a vertical direction which satisfies a condition that a vertical height of at least part of a gap defined by a bottom surface of the vehicle and an upper surface of the housing is less than 15 cm and equal to or more than 5 cm. Therefore, the non-contact power supply system which satisfies a standard for exposure of a human body to electromagnetic field and which is free from an occurrence of a physical contact with a bottom surface of a vehicle is provided.

Claims

1. A non-contact power supply system, comprising:

a power receiving unit which is mounted on a vehicle;

a power transmitting unit which is disposed on a plane and which transmits electric power to the power receiving unit in a non-contact manner; and

a housing which projects in a vertical direction from the plane and which accommodates the power transmitting unit,

wherein the housing has a height in a vertical direction which satisfies a condition that a vertical height of at least part of a gap defined by a bottom surface of the vehicle and an upper surface of the housing is less than 15 cm and equal to or more than 5 cm.

2. The non-contact power supply system according to claim 1,

wherein the housing has a height in a vertical direction such that the gap at least at one of a front and a rear of the housing in a front-rear direction of the vehicle which is parked in a parking position where the power transmitting unit is disposed satisfies the condition.

3. The non-contact power supply system according to claim 1,

where the housing has a height in a vertical direction such that the gap at a front and a rear of the housing in a front-rear direction of the vehicle which is parked in a parking position where the power transmitting unit is disposed satisfies the condition.

4. A power transmission apparatus, comprising:

a power transmitting unit which is disposed on a plane and which transmits electric power in a non-contact manner to a power receiving unit mounted on a vehicle; and

a housing which projects in a vertical direction from the plane and which accommodates the power transmission unit,

wherein the housing has a length in vertical height which satisfies a condition that a vertical height of at least part of a gap defined by a bottom surface of the vehicle and an upper surface of the housing is less than 15 cm and equal to or more than 5 cm.

5. A designing method of a power transmission apparatus, comprising;

a first step of determining an average value of a head length of a human body;

a second step of determining a maximum value of a vertical lowering amount of a vehicle on which a power receiving unit is mounted, based on at least one of an occupant riding and a cargo loaded on the vehicle; and

a third step of determining a size of a housing which accommodates a power transmitting unit disposed on a plane and transmitting electric power in a non-contact manner to the power receiving unit, and which projects in a vertical direction from the plane,

wherein in the third step, a vertical height of the housing is determined so as to satisfy a condition that a vertical height of at least part of a gap defined by a bottom surface of the vehicle and an upper surface of the housing is less than 15 cm and equal to or more than 5 cm, and

the condition is a length which is determined based on the average value determined in the first step and the maximum value determined in the second step.

6. An installing method of a power transmission apparatus, comprising the steps of:

installing a power transmitting unit, which transmits electric power in a non-contact manner to a power receiving unit mounted on a vehicle, on a plane; and

installing a housing which accommodates the power transmitting unit in a state that the housing projects in a vertical direction from the plane, so as to satisfy a condition that a vertical height of at least part of a gap defined by a bottom surface of the vehicle and an upper surface of the housing is less than 15 cm and equal to or more than 5 cm,

wherein the condition is determined based on both of;

an average value of a head length of a human body, and

a maximum value of a vertical lowering amount of the vehicle based on at least one of an occupant riding and a cargo loaded on the vehicle.