Seat air conditioner

Patent metadata

Field	Value
Publication number	US-11021085-B2
Application number	US-201916708550-A
Country	US
Kind code	B2
Filing date	Dec 10, 2019
Priority date	Jun 20, 2017
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

A seat air conditioner is applied to a seat including a seat cushion portion, a seat back portion, and a reclining mechanism portion for varying a reclining angle of the seat back portion relative to the seat cushion portion. The seat air conditioner includes a blower, an air blowing portion from which the air blown by the blower is blown toward the seated occupant, and a wind direction adjustment unit that adjusts a wind direction of the blown air. The wind direction adjustment unit is configured to adjust the wind direction of the air blown out from at least the part of the air blowing portion such that the air from the air blowing portion is blown toward a specific part of the seated occupant regardless of the reclining angle when the seat back portion is inclined toward a rear side of the seat.

First claim

The invention claimed is:

1. A seat air conditioner for a seat including a seat cushion portion for supporting a lower body of a seated occupant, a seat back portion for supporting an upper body of the seated occupant, and a reclining mechanism portion for varying a reclining angle of the seat back portion relative to the seat cushion portion, the seat air conditioner comprising:
a blower that blows air;
an air blowing portion from which the air blown by the blower is blown toward the seated occupant; and
a wind direction adjustment unit that adjusts a wind direction of the air blown out from at least a part of the air blowing portion, wherein
the wind direction adjustment unit is configured to adjust the wind direction of the air blown out from at least the part of the air blowing portion such that the air from at least the part of the air blowing portion is blown toward a specific part of the seated occupant regardless of the reclining angle when the seat back portion is inclined toward a rear side of the seat.

2. The seat air conditioner according to claim 1 , wherein
the air blowing portion includes a center blowing port provided in a center support portion of the seat which supports the seated occupant, and a side blowing port provided outward from the center support portion of the seat in a seat width direction, and
the wind direction adjustment unit is configured to adjust the wind direction of the air blown out from the side blowing port such that as the reclining angle increases, the wind direction of the air blown out from the side blowing port is inclined toward a front side of the seat.

3. The seat air conditioner according to claim 1 , wherein
the wind direction adjustment unit includes:
a wind direction plate provided inside the air blowing portion configured to vary the wind direction of the air blown out from the air blowing portion;
an actuator that outputs a driving force for operating the wind direction plate; and
a wind direction control unit that controls the actuator, and

the wind direction control unit controls the operation of the actuator to incline the wind direction of the air blown out from the air blowing portion toward the front side of the seat as the reclining angle increases.

4. The seat air conditioner according to claim 1 , further comprising:
an air volume control unit that controls a blowing capacity of the blower, wherein
the air volume control unit is configured to, as the reclining angle increases, lower the blowing capacity of the blower to decrease an air volume of the air blown out from the air blowing portion.

5. The seat air conditioner according to claim 4 , wherein
when the reclining angle is an acute angle, the air volume control unit lowers the blowing capacity of the blower such that the air volume of the air blown out from the air blowing portion is lower as compared to when the reclining angle is an obtuse angle.

6. The seat air conditioner according to claim 4 , wherein
when a body size of the seated occupant is smaller than a predetermined reference body size, the air volume control unit lowers the blowing capacity of the blower such that the air volume of the air blown out from the air blowing portion is lower as compared to when the body size of the seated occupant is equal to or larger than the reference body size.

7. A seat air conditioning system for a vehicle, comprising:
a seat including
a seat cushion portion for supporting a lower body of a seated occupant,
a seat back portion for supporting an upper body of the seated occupant, and
a reclining mechanism configured to vary a reclining angle of the seat back portion relative to the seat cushion portion;

a seat air conditioner including
a blower configured to blow air,
a port configured to carry the air blown by the blower toward the seated occupant, and
an actuator controllable to adjust a wind direction of the air blown out from the port; and

a controller coupled to the seat air conditioner, the controller including a processor and a memory having stored thereon instructions that when executed by the processor cause the processor to:
control the actuator to vary the wind direction such that such that the air from the port is blown toward a specific part of the seated occupant regardless of the reclining angle when the seat back portion is inclined toward a rear side of the seat.

Assignees

• Denso Corp

Inventors

• Fujii Takahisa
• Murakami Hironobu

Classifications

• B60N2/5657 Primary

  blown towards the seat surface · CPC title

• B60N2/5642

  with circulation of air through a layer inside the seat · CPC title

• B60N2/5678

  characterised by electrical systems · CPC title

• B60N2/22

  the back-rest being adjustable {(B60N2/2878 takes precedence)} · CPC title

• B60H1/00842

  the system comprising a plurality of damper doors; Air distribution between several outlets · CPC title