# US 2018/0025826 A1 · Attachment structure for coil devices and coil device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0025826 A1 - Document ID: US20180025826A1 - Status: Published application - Kind: A1 - Application number: 15/547,415 - Filed: 2015-12-02 - Published: 2018-01-25 - Earliest claimed: 2015-02-02 - Assignees: IHI Corporation - Applicants: Ihi Corporation - Inventors: Kenji NISHIMURA; Akio UEDA - Web page: https://patentgrep.com/patent/US20180025826A1 ## CPC - H01F 27/06: Mounting, supporting, or suspending transformers, reactors, or choke coils {not being of the signal type} - B60L 5/00: Current collectors for power supply lines of electrically-propelled vehicles (current collectors in general H01R41/00) - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60L 53/124: Detection or removal of foreign bodies - B60L 53/126: Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver - B60M 7/00: Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway - H01F 27/02: Casings - H01F 38/14: Inductive couplings - H02J 7/70: characterised by the mechanical construction - H02J 50/10: using inductive coupling - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/14: Plug-in electric vehicles - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60M: POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES (control of points and safety arrangements along railway lines B61L; construction of rails and points in general E01B) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A fixing structure for a coil device according to an aspect of the disclosure is an attachment structure for a coil device which attaches a flat coil device including a coil portion to an attachment portion, the attachment structure including a cylindrical holding portion provided in the attachment portion to hold the coil device, and a cylindrical engaged portion provided in the coil device and engaged with the holding portion, wherein the holding portion and the engaged portion are disposed along an axis extending in a thickness direction of the coil device, and the engaged portion is engaged over an entire circumference thereof with the holding portion. ## Claims ### Claim 1 An attachment structure for a coil device which attaches a flat coil device including a coil portion to an attachment portion, the attachment structure comprising: a cylindrical holding portion provided in the attachment portion to hold the coil device; and a cylindrical engaged portion provided in the coil device and engaged with the holding portion, wherein the holding portion and the engaged portion are disposed along an axis extending in a thickness direction of the coil device, and the engaged portion is engaged over the entire circumference thereof with the holding portion. ### Claim 2 (depends on 1) The attachment structure according to claim 1, wherein a screw portion is provided on a peripheral surface of the holding portion and on a peripheral surface of the engaged portion, respectively, and the coil device is fixed to the attachment portion by the engaged portion being screwed into the holding portion by rotation of the coil device around the axis. ### Claim 3 (depends on 2) The attachment structure according to claim 2, further comprising a positioning portion for fixing the rotated coil device at a predetermined position. ### Claim 4 (depends on 1) The attachment structure according to claim 1, wherein the holding portion is provided in a region recessed from an end surface of the attachment portion in a direction of the axis, and a portion or a whole of the coil device in a thickness direction is buried inside the attachment portion. ### Claim 5 (depends on 4) The attachment structure according to claim 4, wherein the holding portion with which the engaged portion is engaged, and a housing accommodation portion which has a larger diameter than a diameter of the holding portion and accommodates a portion or a whole of a housing of the coil device are provided in the attachment portion. ### Claim 6 (depends on 5) The attachment structure according to claim 5, wherein a side end portion, the side end being in a direction orthogonal to the axis, of the coil portion accommodated in the housing is separated from a side surface portion of the housing in the orthogonal direction by a first gap, and the side surface portion is separated from a peripheral surface of the housing accommodation portion in the orthogonal direction by a second gap; and the first gap is larger than the second gap. ### Claim 7 A flat coil device having a coil portion and being attached to an attachment portion, the coil device comprising a cylindrical engaged portion engaged with a cylindrical holding portion provided in the attachment portion, wherein the engaged portion is disposed along an axis extending in a thickness direction of the coil device, and configured to be engaged over the entire circumference thereof with the holding portion disposed along the axis. ### Claim 8 (depends on 2) The attachment structure according to claim 2, wherein the holding portion is provided in a region recessed from an end surface of the attachment portion in a direction of the axis, and a portion or a whole of the coil device in a thickness direction is buried inside the attachment portion. ### Claim 9 (depends on 3) The attachment structure according to claim 3, wherein the holding portion is provided in a region recessed from an end surface of the attachment portion in a direction of the axis, and a portion or a whole of the coil device in a thickness direction is buried inside the attachment portion. ### Claim 10 (depends on 8) The attachment structure according to claim 8, wherein the holding portion with which the engaged portion is engaged, and a housing accommodation portion which has a larger diameter than a diameter of the holding portion and accommodates a portion or a whole of a housing of the coil device are provided in the attachment portion. ### Claim 11 (depends on 9) The attachment structure according to claim 9, wherein the holding portion with which the engaged portion is engaged, and a housing accommodation portion which has a larger diameter than a diameter of the holding portion and accommodates a portion or a whole of a housing of the coil device are provided in the attachment portion. ### Claim 12 (depends on 10) The attachment structure according to claim 10, wherein a side end portion, the side end being in a direction orthogonal to the axis, of the coil portion accommodated in the housing is separated from a side surface portion of the housing in the orthogonal direction by a first gap, and the side surface portion is separated from a peripheral surface of the housing accommodation portion in the orthogonal direction by a second gap, and the first gap is larger than the second gap. ### Claim 13 (depends on 11) The attachment structure according to claim 11, wherein a side end portion, the side end being in a direction orthogonal to the axis, of the coil portion accommodated in the housing is separated from a side surface portion of the housing in the orthogonal direction by a first gap, and the side surface portion is separated from a peripheral surface of the housing accommodation portion in the orthogonal direction by a second gap, and the first gap is larger than the second gap.