公开(公告)号：US20200307348A1

公开(公告)日：2020-10-01

申请号：US16311123

申请日：2017-02-23

Applicant: DENSO CORPORATION

Inventor： Ryo KOBAYASHI ,  Yoshihiko OKUMURA ,  Yasuhiro SEKITO ,  Shinya KATO ,  Tetsuya KONO ,  Yuki TSUMAGARI ,  Kira OIWA

IPC: B60H1/00

Abstract: An air conditioner for performing air-conditioning of an interior of a vehicle cabin includes a casing, an evaporator, a blower, a controller, and a cooling passage. The casing defines a ventilation passage through which air flows from an air introduction port toward an air outlet. The evaporator cools the air flowing through the ventilation passage. The blower is disposed on a downstream side with respect to the evaporator in the ventilation passage and generates an airflow in the ventilation passage. The controller controls an output from the blower. The cooling passage causes a position located on a downstream side with respect to the blower in the ventilation passage to communicate with a position located on an upstream side with respect to the evaporator in the ventilation passage. A controller is installed in the cooling passage.

公开(公告)号：US20190077213A1

公开(公告)日：2019-03-14

申请号：US16185200

申请日：2018-11-09

Applicant: DENSO CORPORATION

Inventor： Shinya KATO ,  Yoshihiko OKUMURA ,  Ryo KOBAYASHI ,  Yasuhiro SEKITO ,  Tetsuya KONO ,  Yuki TSUMAGARI ,  Kira OIWA

IPC: B60H1/00

Abstract: An air-conditioning unit for a vehicle has a case, a blower, a cooling heat exchanger and a heating heat exchanger. The cooling heat exchanger is located upstream of the blower inside the case. The heating heat exchanger is located downstream of the blower inside the case. The ventilation passage includes a before-heating passage extending from an air discharge port of the blower toward an air inlet of the heating heat exchanger. The before-heating passage includes, as a part of the before-heating passage, a flow-changing path that is curved to change a flow direction of the air discharged from the blower.

公开(公告)号：US20200223281A1

公开(公告)日：2020-07-16

申请号：US16838246

申请日：2020-04-02

Applicant: DENSO CORPORATION

Inventor： Shinji IDE ,  Ryo KOBAYASHI ,  Yasue YONEZU ,  Ayumi KAWASAKI

IPC: B60H1/00

Abstract: A vehicular air conditioning unit includes an air-conditioning case and a blower. The blower includes a blower fan accommodated in the air-conditioning case and configured to rotate about a fan axis to cause the air to flow through the case passage, and a blower motor accommodated in the air-conditioning case and configured to rotate the blower fan. The air-conditioning case includes a case body having a case opening hole that is located outward of the blower in a radial direction of the fan axis and opens in the radial direction, and an opening hole cover fixed to the case body to close the case opening hole. The opening hole cover is detachable from the case body. The case opening hole has a size that allows the blower to pass through the case opening hole when the blower is taken out from the air-conditioning case.

公开(公告)号：US20190270359A1

公开(公告)日：2019-09-05

申请号：US16417077

申请日：2019-05-20

Applicant: DENSO CORPORATION

Inventor： Shinya KATO ,  Ryo KOBAYASHI ,  Yasuhiro SEKITO ,  Tetsuya KONO ,  Yuki TSUMAGARI ,  Tomohide SHINDO

IPC: B60H1/00

Abstract: A vehicular air conditioning device includes an air conditioning case having first, second case introduction ports and first, second case discharge ports, and a fan. The first, second case discharge ports are offset upward and downward in an up-down direction relative to a rotation axis, respectively. A first inner guide surface of an inner guide plate is located on the one side of a second inner guide surface in the left-right direction. Air introduced through the first case introduction port is guided by the first inner guide surface to be drawn from a first passage into the fan, the air being blown upward to flow through the first case discharge port. Air introduced through the second case introduction port is guided by the second inner guide surface to be drawn from a second passage into the fan, the air being blown upward to flow through the second case discharge port.

公开(公告)号：US20190152299A1

公开(公告)日：2019-05-23

申请号：US16251159

申请日：2019-01-18

Applicant: DENSO CORPORATION

Inventor： Ryo KOBAYASHI ,  Yoshihiko OKUMURA ,  Yasuhiro SEKITO ,  Shinya KATO

IPC: B60H1/32 ,  B60H1/00

Abstract: In a vehicular air conditioning unit, an air conditioning case includes a space forming portion that forms a drainage space which is partitioned from an air passage. The space forming portion includes a drainage portion that discharges water from inside the air conditioning case to outside of the air conditioning case. Further, the space forming portion includes an upstream side communication portion that communicates the drainage space to an upstream side space on an air flow upstream side of the blower in the air passage. Further, the space forming portion includes a downstream side communication portion that communicates the drainage space to a downstream side space on the air flow downstream side of the blower in the air passage.

公开(公告)号：US20200173445A1

公开(公告)日：2020-06-04

申请号：US16783735

申请日：2020-02-06

Applicant: DENSO CORPORATION

Inventor： Tetsuya KONO ,  Ryo KOBAYASHI ,  Yasue YONEZU ,  Takahiro NAKAJIMA ,  Yuki TSUMAGARI ,  Tomohide SHINDO

IPC: F04D17/10 ,  F04D29/42

Abstract: A blower includes a centrifugal fan and a partition wall disposed in a suction space in the centrifugal fan. The partition wall has a base portion extending along a fan central axis to partition the suction space into a first space for a first fluid and a second space for a second fluid. The partition wall has an enlarged portion connected to an end of the base portion on another side of the fan central axis. The enlarged portion covers a part of a fan boss. A clearance passage is defined between the enlarged portion and the fan boss and has a first space side opening and a second space side opening. The enlarged portion is biased in the suction space to the second space such that a pressure at the second space side opening is less than a pressure at the first space side opening.

公开(公告)号：US20190255905A1

公开(公告)日：2019-08-22

申请号：US16401701

申请日：2019-05-02

Applicant: DENSO CORPORATION

Inventor： Yuki TSUMAGARI ,  Ryo KOBAYASHI ,  Tetsuya KONO ,  Shinji IDE

IPC: B60H1/00

Abstract: An air conditioning unit for a vehicle includes: an air conditioning case, a blower that draws air from an opening and blows the air radially outward from its rotation axis, a cooler disposed upstream of the blower, and a heater is disposed downstream of the blower. The air conditioning case includes an upper bypass passage through which the air bypasses the heater on an upper side of the heater, a lower bypass passage through which the air bypasses the heater on a lower side of the heater, a first opening provided downstream of the upper bypass passage, and a second opening provided downstream of the lower bypass passage. The opening of the blower faces an air outflow face of the cooler. A passage area of the upper bypass passage is larger than a passage area of the lower bypass passage.

公开(公告)号：US20210362559A1

公开(公告)日：2021-11-25

申请号：US17397626

申请日：2021-08-09

Applicant: DENSO CORPORATION

Inventor： Yasue YONEZU ,  Ryo KOBAYASHI

IPC: B60H1/00

Abstract: An air conditioning unit for a vehicle includes: an air conditioning case defining an in-case passage in which air flows to a vehicle interior; a cooler arranged in the air conditioning case and configured to cool the air flowing in the in-case passage; a blower that includes a blower motor and an impeller configured to be rotated by the blower motor and generate an air flow in the in-case passage; and a cooling passage portion defining a motor cooling passage in which air flows to cool the blower motor. The blower is arranged downstream of the cooler with respect to the air flow in the air conditioning case. The motor cooling passage includes a passage inlet located downstream of the impeller with respect to the air flow in the in-case passage, and a passage outlet located upstream of the impeller with respect to the air flow in the in-case passage.

公开(公告)号：US20200148025A1

公开(公告)日：2020-05-14

申请号：US16741052

申请日：2020-01-13

Applicant: DENSO CORPORATION

Inventor： Yoshinori TASHIMA ,  Yasue YONEZU ,  Ryo KOBAYASHI ,  Takahiro NAKAJIMA

IPC: B60H1/00 ,  B60H1/26

Abstract: An air-conditioning unit for a vehicle includes an air conditioning case, a blower, and a rectifying mechanism. The blower has a blower fan rotating around a fan axis and arranged in an in-case passage of the air conditioning case, and blows out air drawn from one side in an axial direction of the fan axis by rotation of the blower fan. The rectifying mechanism is arranged downstream of the blower fan in the in-case passage, and the air passes through the rectifying mechanism. The blower fan is arranged so that the other side of the fan axis that is opposite to the one side extends toward a downstream side of the in-case passage. The rectifying mechanism suppresses a swirling flow generated by the rotation of the blower fan in the air blown out from the blower fan as compared with the blown-out air prior to flowing into the rectifying mechanism.

公开(公告)号：US20190291531A1

公开(公告)日：2019-09-26

申请号：US16437084

申请日：2019-06-11

Applicant: DENSO CORPORATION

Inventor： Tetsuya KONO ,  Ryo KOBAYASHI ,  Yasuhiro SEKITO ,  Shinya KATO ,  Yuki TSUMAGARI

IPC: B60H1/00 ,  F24F1/0022 ,  F24F13/08

Abstract: An inner guide plate has an inner guide plate surface that guides air. An outer guide plate has an outer guide plate surface that guides the air toward a discharge port of the fan. In each of predetermined cross sections perpendicular to a rotation axis of the fan, a reference line is a line connecting the rotation axis and an outer guide end of the outer guide surface that is a radially inner end. In each of the predetermined cross sections, a guide line is a line connecting the rotation axis and an inner guide end of the inner guide surface that is a radially outer end. In each of the predetermined cross sections, a phase difference angle is an angle between the guide line and the reference line in a rotation direction of the fan. The phase difference angles of the predetermined cross sections are different from each other.