公开(公告)号：US20250092195A1

公开(公告)日：2025-03-20

申请号：US18963460

申请日：2024-11-27

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hideyuki IKEUCHI ,  Masato Naitou ,  Motoshi Matsui ,  Takashi Nomura

IPC: C08G65/333 ,  C08G65/329 ,  C08G65/331 ,  C08G65/336

Abstract: A fluoropolyether group-containing compound of formula (1a) or formula (1b): wherein RF1, RF2, R1 and R2 are as defined herein.

公开(公告)号：US12253315B2

公开(公告)日：2025-03-18

申请号：US18693336

申请日：2022-05-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hiroyuki Nakano ,  Shota Ago

IPC: F28F19/06 ,  F24F1/0003 ,  F24F1/0059 ,  F24F1/14

Abstract: An air conditioner 1 is disclosed as an air conditioner configured to condition air by connecting an indoor unit 2 including a first heat exchanger 11 in which a refrigerant exchanging heat with room air flows to an outdoor unit 3 including a second heat exchanger 24 in which a refrigerant exchanging heat with outdoor air flows. The first heat exchanger 11 includes a first heat transfer tube 11a1 made of aluminum or aluminum alloy, and the second heat exchanger 24 includes a second heat transfer tube 24a made of aluminum or aluminum alloy. A first sacrificial layer 45a is formed on an outer circumferential surface of the first heat transfer tube 11a1, and a second sacrificial layer 35 is formed on an outer circumferential surface of the second heat transfer tube 24a. The maximum thickness to of the second sacrificial layer 35 is larger than the sacrificial layer ti1 of the first sacrificial layer 45a. This suppresses corrosion of the heat transfer tube of the outdoor unit.

公开(公告)号：US12253288B2

公开(公告)日：2025-03-18

申请号：US18621723

申请日：2024-03-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kumiko Saeki ,  Yuta Iyoshi ,  Yoshiki Yamanoi

IPC: F25B41/26 ,  F25B13/00

Abstract: A safety valve includes a secondary-side refrigerant circuit that includes a secondary-side receiver that reserves a refrigerant, a flow path switching portion that includes a first connecting portion, a second connecting portion, and a third connecting portion connected to the secondary-side receiver, the flow path switching portion (96) that switches between a first state in which the third connecting portion communicates with the first connecting portion and a second state in which the third connecting portion communicates with the second connecting portion, and a safety valve that includes a safety valve connecting portion connected to the first connecting portion or the second connecting portion, and releases the refrigerant to outside when a refrigerant pressure in the secondary-side receiver satisfies a predetermined condition, in which at least the safety valve connecting portion is made of stainless steel.

公开(公告)号：US12253277B2

公开(公告)日：2025-03-18

申请号：US17704250

申请日：2022-03-25

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Atsushi Yoshimi ,  Takuro Yamada ,  Eiji Kumakura ,  Ikuhiro Iwata ,  Takeru Miyazaki

IPC: F24F3/06 ,  F25B25/00 ,  F25B29/00

Abstract: An air conditioner includes: use-side units that are each switchable between a cooling operation and a heating operation; and a heat-source-side unit including a compressor, a discharge pipe through which a refrigerant discharged from the compressor flows, a first main heat-source-side flow path and a second main heat-source-side flow path that branch off from the discharge pipe, a first heat-source-side heat exchanger, a second heat-source-side heat exchanger, a first economizer heat exchanger, and a second economizer heat exchanger. The first heat-source-side heat exchanger is connected to the first economizer heat exchanger in series in the first main heat-source-side flow path. The second heat-source-side heat exchanger is connected to the second economizer heat exchanger in series in the second main heat-source-side flow path.

公开(公告)号：US12249867B2

公开(公告)日：2025-03-11

申请号：US17997762

申请日：2021-04-30

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yoshinari Asano ,  Naohiro Kido ,  Tsukasa Asari ,  Akane Ueda ,  Yuuya Horinouchi

IPC: H02K1/14

Abstract: A rotary electrical device includes a rotor having a hollow cylindrical shape or a solid cylindrical; and a stator having an annular shape and surrounding a rotation axis of the rotor. The stator includes a winding and a stator core constituted by a magnetic powder core. The stator core includes multiple cores facing each other with the winding interposed therebetween in an axial direction of the stator. One core of the multiple cores includes a yoke contacting another core, and one or more claw magnetic poles that protrude radially from the yoke toward the rotor. The one or more claw magnetic poles are alternately arranged with claw magnetic poles of the one other core. The yoke has a yoke surface parallel to the axial direction, contacting the other core.

公开(公告)号：US12249689B2

公开(公告)日：2025-03-11

申请号：US17410675

申请日：2021-08-24

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tomoya Hidaka ,  Shigeaki Yamazaki ,  Akinori Tani ,  Yoshiko Kuwajima

IPC: H01M10/0567 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: An electrolyte solution containing a compound (1) represented by the formula (1): wherein R1 and R2 are each independently a C1-C4 alkyl group optionally containing an ether bond; and a compound (11) represented by the formula (11): wherein R101 and R102 are each independently a substituent that is a C1-C7 alkyl group or the like. The substituent optionally contains one or more divalent to hexavalent hetero atoms in its structure, with one or more hydrogen atoms each optionally replaced by a fluorine atom or a C0-C7 functional group. Also disclosed is an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution, and a module including the electrochemical device or the lithium ion secondary battery.

公开(公告)号：US12247755B2

公开(公告)日：2025-03-11

申请号：US17760036

申请日：2020-12-01

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kentarou Takaki ,  Nobuyoshi Kawakami ,  Nao Okada ,  Hiroko Kashimoto

IPC: F24F11/58 ,  F24F11/49 ,  F24F11/52 ,  F24F11/54

Abstract: A system includes a use side device of an air conditioner; a terminal; and a management server, wherein the terminal transmits first information for identifying the use side device installed in a predetermined property to the management server, and wherein the management server stores second information as information on a use side device to be installed in the predetermined property, and based on the first information and the second information received from the terminal, the management server determines whether the use side device installed in the predetermined property matches the use side device to be installed in the predetermined property.

公开(公告)号：US12244175B2

公开(公告)日：2025-03-04

申请号：US17923905

申请日：2021-04-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Naohiro Kido ,  Yoshinari Asano ,  Tsukasa Asari ,  Hiroshi Hibino

IPC: H02K1/14 ,  H02K3/52 ,  H02K21/22

Abstract: A motor includes a stator having stacking coil units with a nonmagnetic body arranged between, and a rotatable rotor. Each of the coil units includes a coil, and a stator core. The coil includes an annular winding. The stator core is arranged to surround at least part of the winding. The stator core includes projections formed on axial ends of the stator core, alternately arranged in a circumferential direction, and projecting radially toward the rotor from the axial ends. The coil includes the winding and two leads extending from the winding. At least one of a first and a second of the two leads extends between stator cores of two of the coil units. A magnet pole is arranged in one of inner and outer circumferential portions of the stator core, and the first and second leads are arranged in an other one of inner and outer circumferential portions.

公开(公告)号：US12240988B2

公开(公告)日：2025-03-04

申请号：US18513786

申请日：2023-11-20

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuki Ueda ,  Shingo Okuno ,  Akiyoshi Yamauchi ,  Yoshihiro Souda ,  Yasukazu Nakatani

IPC: C09D127/18 ,  H05K1/05

Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.

公开(公告)号：US12235000B2

公开(公告)日：2025-02-25

申请号：US17436825

申请日：2020-02-14

Applicant: DAIKIN INDUSTRIES, LTD. ,  DAIKIN EUROPE N.V.

Inventor： Kouta Yoshikawa ,  Wim Vansteenkiste ,  Akshay Hattiangadi ,  Jose Daniel Garcia Lopez ,  Tom Surmont ,  Rishi Mehta

IPC: F24F1/12

Abstract: A heat source unit for a heat pump having a refrigerant circuit, the heat source unit having: an outer casing including a bottom plate; and a compressor assembly accommodated in the outer casing, the compressor assembly including a compressor of the refrigerant circuit of the heat pump including a compressor housing, a support plate supporting the compressor, the support plate being mounted via dampers to the bottom plate, and a compressor casing enclosing the compressor and the compressor housing. A damping mechanism is arranged between the compressor and the support plate, and the compressor casing is fixed to the support plate out of contact with the compressor housing.