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Vehicle seat air conditioning system

a technology for air conditioning systems and seats, applied in the direction of chairs, transportation and packaging, vehicle arrangements, etc., can solve the problems of unfavorable design and uncomfortable feeling of surface cover material, and achieve the effect of not making undesirable dent in the design

Inactive Publication Date: 2004-05-13
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] Embodiments of the present invention are directed to the above disadvantage and it is therefore an object of the embodiments to reduce the discomfort of the seated passenger by the presence of the air-blowing unit in the vehicle seat.

Problems solved by technology

Consequently, the passenger may be aware of the presence of the cover member and feel uncomfortable while seated.
Therefore, such an undesirable dent in terms of design is not made in the surface cover material (16) if the air-blowing hole (31) is of a large size.

Method used

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  • Vehicle seat air conditioning system
  • Vehicle seat air conditioning system
  • Vehicle seat air conditioning system

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0064] Now, the above function and effects will be summarized.

[0065] (1) The use of the support portion 31b formed integrally with the cushion member 30 removes the necessity of a rigid cover member. Therefore, a passenger does not feel discomfort that would otherwise be caused in seating because of the presence of the cover member.

[0066] (2) The cross-sectional area of the air-blowing hole 31 is approximately equal to or larger than the blade size D2 of the air-blowing fan 21. Therefore, when air is blown by the second air-blowing unit 14, the airflow resistance can be reduced, which secures the air blowing performance.

[0067] (3) The cross-sectional area of each of the hole portions 31a is smaller than the cross-sectional area of the air-blowing hole 31, and there are a number of such hole portions. Therefore, the strength of the support portion 31b can be maintained, while the airflow resistance can be restrained.

[0068] (4) The electric heater 18 is provided on the back side of t...

second embodiment

[0069] According to the first embodiment, the air blowing casing 20 and the attachment bracket member 23 at which the inlet duct portion 26 is provided are joined together with bolts (not shown). Then, the inlet duct portion 26 is inserted into the air-blowing hole 31. Meanwhile, according to a second embodiment, as shown in FIG. 5, in place of the attachment bracket member 23, an air outlet portion 35 provided with holes in the center for supplying air is used. On the backside of the cushion member 30, a protrusion 30b protruding toward the air-blowing unit 14 is provided over the entire circumference from the opening of the air-blowing hole 31. The air outlet portion 35 is fitted with the protrusion 30b. In this manner, the second air-blowing unit 14 is inserted as it is surrounded by the protrusion portion 30b, and therefore air blown from the second air-blowing unit 14 is kept from leaking through the air-blowing hole 31.

third embodiment

[0070] As shown in FIG. 6, the hole portions 31a may be a plurality of triangular shapes. The hole portions 31a are in communication with the air distribution groove 33.

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PUM

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Abstract

In a vehicle seat air conditioning system, when air blows, discomfort in seating caused by the presence of an air-blowing unit is reduced and a depression is nearly avoided in the surface cover material. The system utilizes a surface cover material, a cushion member positioned on a backside of the surface cover material, an air-blowing hole penetrating through the thickness of said cushion member, an air-blowing unit positioned on a backside of said cushion member to supply air to said air-blowing hole, and a support portion, which is integral with the cushion member and that supports the surface cover material, provided in a position of said air-blowing hole. The size of an air-blowing hole proximate to the support portion is smaller than the size of an air-blowing hole proximate said air-blowing unit.

Description

[0001] This application is based upon, claims the benefit of priority of, and incorporates by reference, the contents of Japanese Patent Application No. 2002-329664 filed Nov. 13, 2002.[0002] 1. Field of the Invention[0003] The present invention relates to an air conditioning system located within a vehicle seat. Furthermore, the invention is applicable to an air conditioning system with a dynamic pressure type air blower.[0004] 2. Description of the Related Art[0005] Various kinds of conventional vehicle seat air conditioning systems have been suggested. One such air conditioning system has an air-blowing hole through which conditioned air is made to flow through the bottom seat cushion, that is, through the thickness of the cushion member, and an air-blowing unit is integrally attached with a cover member being inserted to the air-blowing hole from the passenger side of the cushion.[0006] There is a plurality of small holes in the center of the cover member. When the air-blowing u...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60H1/00A47C7/74B60N2/56
CPCB60N2/5657B60N2/5628
Inventor KAMIYA, TOSHIFUMIAOKI, SHINJI
Owner DENSO CORP
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