Excess-length-absorbing apparatus and coil unit

• US 10,239,411 B2
• Filed: 04/15/2014
• Issued: 03/26/2019
• Est. Priority Date: 04/17/2013
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Ngahu, Antony
• Primary Examiner(s): Kim, Jung
• Application Number:
  US14/783,561
• Publication Number:
  US 20160059714A1
• Time in Patent Office: 1,806 Days
• CPC Class Codes: B60K 6/22 characterised by apparatus, components or means specially adapted for HEVs
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• 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

Provided is an excessive length absorbing apparatus which absorbs the excess length of a primary resonant coil that is one of a pair of resonant coils which performs non-contact power supply via magnetic field resonance. A secondary hook in the excessive length absorbing apparatus hooks an excessive length portion of the primary resonant coil so as to hold the excess length portion of the primary resonant coil in a U-shape, and a holding member holds the secondary hook in a slidable manner.

Claims

1. A coil unit comprising:

at least one coil configuring at least one of a pair of resonance coils which performs non-contact power supply via magnetic field resonance, an electromagnetic induction coil which supplies electric power to a power supply-side of the pair of the resonance coils, and an electromagnetic induction coil to which power source is supplied from a power receiving-side of the pair of resonance coils; and

an excessive length absorbing apparatus that absorbs an excessive length portion of the at least one coil, the excessive length absorbing apparatus including;

a primary hook configured to hook the at least one coil;

a secondary hook configured to hook the excessive length portion of the at least one coil to hold the excessive length portion in a U-shape; and

a holding member configured to hold the secondary hook in a manner that position of the secondary hook is slidable relative to the primary hook in a longitudinal direction of the U-shape to absorb the excessive length portion.

2. The coil unit according to claim 1, further comprises a turn number adjustment mechanism for adjusting a turn number of the at least one coil.

3. The coil unit according to claim 2, further comprising

a base stage around which the at least one coil is wound or on which the at least one coil is mounted, wherein

the turn number adjustment mechanism is configured with a turned-back portion provided by rewinding a portion of the at least one coil, and wherein

the base stage is provided with a plurality of guide members for hooking the at least one coil to form the turned-back portion.

4. A coil unit comprising:

at least one coil configuring at least one of a pair of resonance coils which performs non-contact power supply via magnetic field resonance, an electromagnetic induction coil which supplies electric power to a power supply-side of the pair of the resonance coils, and an electromagnetic induction coil to which power source is supplied from a power receiving-side of the pair of resonance coils;

a turn number adjustment mechanism for adjusting a turn number of the at least one coil;

a base stage around which the at least one coil is wound or on which the at least one coil is mounted, wherein

the turn number adjustment mechanism is configured with a turned-back portion provided by rewinding a portion of the at least one coil, and

the base stage is provided with a plurality of guide members for hooking the at least one coil to form the turned-back portion; and

an excessive length absorbing apparatus that absorbs an excessive length portion of the at least one coil, the excessive length absorbing apparatus including;

a hook configured to hook the excessive length portion of the at least one coil to hold the excessive length portion in a U-shape; and

a holding member configured to hold the hook in a manner that position of the hook is slidable in a longitudinal direction of the U-shape.