US 11,077,737 B2Granted

Blower unit of air conditioner for vehicle

AssigneeHanon Systems

InventorSeung Ho Lee

Life of this patent

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Abstract

A blower unit of an air conditioner for a vehicle which allows one actuator to drive two doors in a structure in which at least two doors are provided in an intake duct is disclosed. The blower unit of an air conditioner for a vehicle includes an intake duct including an internal air inlet through which internal air is introduced and an external air inlet through which external air is introduced, a first door configured to adjust an opening amount of a part of the external air inlet and an opening amount of the internal air inlet, and a second door configured to adjust an opening amount of the remaining part of the external air inlet, wherein the first door and the second door are linked and driven together.

Claims13

Dependent claims

A blower unit of an air conditioner for a vehicle which includes an intake duct including an internal air inlet through which internal air is introduced and an external air inlet through which external air is introduced, the blower unit comprising:

a first door configured to adjust an opening amount of a part of the external air inlet and an opening amount of the internal air inlet;
a second door configured to adjust an opening amount of a remaining part of the external air inlet, and
a cam configured to drive the first door linked with the second door;
wherein the first door and the second door are linked and driven together;
wherein the cam includes a first slot configured to guide a pin of a first arm connected to a rotating shaft of the first door in a sliding manner and a second slot configured to guide a pin of a second arm connected to a rotating shaft of the second door in a sliding manner;
wherein the first slot includes a driving section for the first door and an idling section for the first door;
wherein the second slot includes an idling section for the second door and a driving section for the second door;
wherein when the guide pin of the first arm is in the idling section for the first door, the first door is not rotatable;
wherein when the guide pin of the second arm is in the driving section for the second door, the second door is rotatable;
wherein when the guide pin of the first arm is in the driving section for the first door, the first door is rotatable, and
wherein when the guide pin of the second arm is in the idling section for the second door, the second door is not rotatable.

8 more elements

A blower unit of an air conditioner for a vehicle which includes an intake duct including a first internal air inlet and a second internal air inlet through which internal air is introduced and an external air inlet through which external air is introduced, the blower unit comprising:

a first door configured to adjust an opening amount of a part of the external air inlet and an opening amount of the first internal air inlet;
and
a second door configured to adjust an opening amount of a remaining part of the external air inlet and an opening amount of the second internal air inlet,
wherein the first door and the second door are linked and driven together;
a cam having a first slot and a second slot;
the first slot configured to guide a pin of a first arm connected to a rotating shaft of the first door in a sliding manner;
and
the second slot configured to guide a pin of a second arm connected to a rotating shaft of the second door in a sliding manner.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/380,673Filed 10 Apr 2019
Priority: KR 10-2018-004194111 Apr 2018
Published: US 2019/0315196 A117 Oct 2019
Granted: 3 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B60H 1/241
Ventilating devices where the heating or cooling is irrelevant: characterised by the location of ventilation devices in the vehicle
B60H 1/00028
Air flow details of HVAC devices: constructional lay-out of the devices in the vehicle
B60H 1/00849
Damper doors, e.g. position control: for selectively commanding the induction of outside or inside air
B60H 1/00857
Damper doors, e.g. position control: characterised by the means connecting the initiating means, e.g. control lever, to the damper door

Family

US 2019/0315196 A1Pre-grant publication · published 17 Oct 2019
US 11,077,737 B2This patent

From the US filing history. Foreign family members aren’t listed.

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