US20040195870A1 - Automotive vehicle seat and blower module for such an automotive vehicle seat - Google Patents
Automotive vehicle seat and blower module for such an automotive vehicle seat Download PDFInfo
- Publication number
- US20040195870A1 US20040195870A1 US10/788,158 US78815804A US2004195870A1 US 20040195870 A1 US20040195870 A1 US 20040195870A1 US 78815804 A US78815804 A US 78815804A US 2004195870 A1 US2004195870 A1 US 2004195870A1
- Authority
- US
- United States
- Prior art keywords
- air
- knitwear
- seat
- automotive vehicle
- vehicle seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 239000002984 plastic foam Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 description 18
- 239000006261 foam material Substances 0.000 description 4
- 238000009420 retrofitting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/08—Upholstery, mattresses
Definitions
- the present invention relates to an automotive vehicle seat and a blower module for such an automotive vehicle seat.
- blower module with a heating power of about 300 watt such that it is suited for retrofitting in a “unitary seat”.
- a buyer who is not interested in “comfort heating” cannot be expected to accept an automotive vehicle seat which already optically indicates that he has not been able to afford such an optional feature. Therefore, the unitary seat must be designed such that it is acceptable without comfort heating, does not create any considerable extra costs caused by adaptation to the blower module and, nevertheless, allows easy retrofitting.
- the automotive vehicle seat according to claim 1 seems to meet all of these requirements.
- the blower module according to claim 2 is adapted to the above requirements in that it has a constructional form with a small constructional height thanks to the radial blower and the other components arranged in one plane.
- FIG. 1 ( 1 a to 1 f ) shows the automotive vehicle seat in different views
- FIG. 2 shows the cell structure of the knitwear in a detail view
- FIG. 3 shows the blower module with removed cover.
- the automotive vehicle seat comprises a seat cushion part 1 and a backrest 2 in its standard form.
- Both the seat cushion part 1 and the backrest 2 consist essentially of a support body 3 , particularly advantageously of rigid foam material, e.g. polyurethane, but also as a sprung seat in which the necessary fastening rails and frames are integrated.
- the surface of the rigid foam material has adhesively secured thereto a knitwear 4 on which the outer cover, e.g. velour or leather, rests.
- Air flow channels 6 which terminate in a chamber 7 and are open over their whole lengths towards the knitwear 4 are provided in the rigid foam material.
- An elastic seal 14 for preventing the transmission of vibrations is provided between the chamber 7 and the air exit channel of the blower module.
- the knitwear 4 has a thickness of about 1 cm and consists of individual honeycombed cells, each being about 1 cm 2 The cells are interconnected via fibers that cannot be fully compressed under load, so that the air blown into the chamber 7 is distributed over the whole area of the knitwear 4 and can evenly exit at all locations of the cover 5 .
- the knitwear 4 which is shown in more detail in FIG. 2, consists, for instance, of a honeycombed nylon braiding with a base layer 4 a and a cover layer 4 b and a multitude of spacers 4 c between said layers 4 a , 4 b .
- Base layer and cover layer 4 a , 4 b comprise interconnected cells of about 60 mm 2 on their edges. These are formed by a twisted yarn which consists of about 20 individual filaments and has a diameter of about 0.05 mm. At least at the corner points, the cells of the opposite layers 4 a , 4 b are interconnected by spacers 4 c made from the same material and are spaced apart in the unloaded state at a distance of about 1 cm.
- the spacers 4 c have a preferably arcuate shape to impart a predetermined elasticity to the knitwear 4 . Desired is an elasticity or flexibility that at an initial surface pressure of 0 to about 20 g/cm 2 does virtually not effect any deformations yet and then, at a rising surface pressure of up to 100 g/cm 2 , leads to an approximately linear approach of the two layers 4 a , 4 b , but even at a maximum surface load still permits an air exchange between the two layers.
- the leather comprises a multitude of passage openings at a mutual distance of about 4 mm and a diameter of about 1 mm.
- both the seat cushion part 1 and the back part 2 are provided with a blower module 8 , each being provided in a chamber 9 or recess in the lower part of the seat cushion part 1 and the rear part of the backrest 2 , respectively.
- the chamber 9 is closed by a cover (not shown in more detail) which comprises the necessary recesses for the blower module 8 and ends flush with the seat contour on the outside, and just comprises one or several, preferably laterally arranged, air intake openings leading via corresponding channels to the blower module 8 .
- the seat cushion part 1 is provided in the corner portion relative to the backrest 2 with a box-shaped air outlet 16 so that air can optionally exit in addition at said place.
- the air outlet 16 is connected at the inlet side to the air flow channel 6 and terminates at the outlet side with a grating 17 .
- the blower module 8 is shown in more detail in FIG. 3. It consists of a flat box having a constructional height of about 3 cm, in which a radial blower 10 , a heat register 11 preferably composed of PTC elements, an electrical controller 12 built on a printed circuit board and a temperature sensor 13 a and 13 b , respectively, are arranged side by side.
- the outer circumference of the box has provided thereon a number of fastening tabs 14 which serve to connect the box to corresponding mating pieces in the support body 2 .
- the temperature sensors 13 a and 13 b are provided in the cold air tract and warm air tract, respectively, and are connected to the electronic controller 12 .
- the electronic controller 12 is further connected via lines (not shown in more detail) to the on-board network of the vehicle, the radial blower 10 and corresponding control elements which are preferably mounted in the seat portion and via which the heating power and the rotational speed of the blower can be adjusted independently of each other.
- the electronic controller 12 operates with the following functional profile:
- the radial blower 10 is slowly running up for about 5 sec to the set rated speed to make the cold air, which is still inside the seat, exit at a slow pace.
- the desired heating power is output in a controlled way to the heat register, the control being configured such that it is ensured that the generator is not overloaded. Hence, it might happen that less heating power is taken than required by the user.
- the rotational speed of the radial blower 10 is adjustable either independently or is coupled at least partly with the heating power, the speed of the radial blower 10 being automatically raised at increased heating powers.
- the radial blower 10 first operates in the suction mode for about 3 min after it has been switched on, and then in the blow mode.
- the radial blower can thus be operated in two directions that can be activated by voltage reversal.
- the air inlet can also be connected to the cooling compressor of the automotive vehicle for summer operation. Thanks to the use of a radial blower 10 it has been possible to give the blower module 8 a very flat design so that it can even be accommodated in the backrest.
- the radial blower 10 sucks air from an opening directly positioned thereunder in the box, it pushes the air through channels guided along the PTC heating elements into the blow-out tract and via a cover (not shown) of the box into the air flow channels 6 arranged in the rigid foam material of the support body 3 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Air-Conditioning For Vehicles (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
An automotive vehicle seat for accommodating a blower module, wherein the automotive vehicle seat is designed as a “unitary seat” and comprises all necessary components in an already prefabricated state for supplying hot or cold air to the seat so as to equip or retrofit said seat in case of need with the blower module.
Description
- 1. Field of the Invention
- The present invention relates to an automotive vehicle seat and a blower module for such an automotive vehicle seat.
- 2. Description of the Related Art
- To increase comfort inside an automotive vehicle, heated and ventilated seats are already standard. Seat heating and seat ventilation, however, are normally separated systems. The mounting efforts due to the necessary electrical wiring and the number of components are huge. Considerable efforts are also needed whenever the lateral cheeks are to be heated or ventilated. Heating by means of a looped heating wire or in the form of a foil type heating element effects a heat transfer at points that is not homogeneous. Especially with heating wires, there is also the risk of hot spots, i.e. heated locations with low heat discharge.
- An essential problem which car manufacturers are faced with is that comfort at a high level is expensive and can thus only be offered as an option since it is not desired by all customers on account of the costs entailed thereby. Options, however, confront the car manufacturer with logistic problems and problems in stockkeeping, which in turn has a negative effect on the costs.
- An automotive vehicle seat heated at high comfort can thus only be offered as an option because of the costs entailed thereby. To minimize the above problems a car manufacturer is faced with, the present invention therefore starts from the following approach:
- Offered is a “unitary seat” in which all measures are already taken without any considerable extra work for retrofitting a “comfort heating” without any trouble in that all components needed therefor are already provided with the exception of the expensive units. The automotive vehicle seat can then be retrofitted in an easy way, if required.
- In an automotive vehicle seat according to claim1, in which knitwear incorporated for air guidance and air distribution is already integrated, it has been found that said knitwear is also advantageous without an inserted blower module and also during summer operation, i.e. without heating, because an air exchange is allowed between the surface sections, and the moisture produced during sitting is distributed and discharged to the outside. For a car manufacturer this means virtually no extra work for preparing the vehicle seat for “comfort heating” so as to retrofit it in case of need.
- It poses problems to construct a blower module with a heating power of about 300 watt such that it is suited for retrofitting in a “unitary seat”. Of course, a buyer who is not interested in “comfort heating” cannot be expected to accept an automotive vehicle seat which already optically indicates that he has not been able to afford such an optional feature. Therefore, the unitary seat must be designed such that it is acceptable without comfort heating, does not create any considerable extra costs caused by adaptation to the blower module and, nevertheless, allows easy retrofitting. The automotive vehicle seat according to claim1 seems to meet all of these requirements.
- The blower module according to
claim 2 is adapted to the above requirements in that it has a constructional form with a small constructional height thanks to the radial blower and the other components arranged in one plane. - The invention will now be explained in more detail with reference to an embodiment shown in the drawing, in which:
- FIG. 1 (1 a to 1 f) shows the automotive vehicle seat in different views;
- FIG. 2 shows the cell structure of the knitwear in a detail view;
- FIG. 3 shows the blower module with removed cover.
- The automotive vehicle seat comprises a seat cushion part1 and a
backrest 2 in its standard form. Both the seat cushion part 1 and thebackrest 2 consist essentially of a support body 3, particularly advantageously of rigid foam material, e.g. polyurethane, but also as a sprung seat in which the necessary fastening rails and frames are integrated. The surface of the rigid foam material has adhesively secured thereto aknitwear 4 on which the outer cover, e.g. velour or leather, rests. -
Air flow channels 6 which terminate in achamber 7 and are open over their whole lengths towards theknitwear 4 are provided in the rigid foam material. - An
elastic seal 14 for preventing the transmission of vibrations is provided between thechamber 7 and the air exit channel of the blower module. Theknitwear 4 has a thickness of about 1 cm and consists of individual honeycombed cells, each being about 1 cm2 The cells are interconnected via fibers that cannot be fully compressed under load, so that the air blown into thechamber 7 is distributed over the whole area of theknitwear 4 and can evenly exit at all locations of thecover 5. - The
knitwear 4, which is shown in more detail in FIG. 2, consists, for instance, of a honeycombed nylon braiding with abase layer 4 a and acover layer 4 b and a multitude ofspacers 4 c between saidlayers cover layer opposite layers spacers 4 c made from the same material and are spaced apart in the unloaded state at a distance of about 1 cm. Thespacers 4 c have a preferably arcuate shape to impart a predetermined elasticity to theknitwear 4. Desired is an elasticity or flexibility that at an initial surface pressure of 0 to about 20 g/cm2 does virtually not effect any deformations yet and then, at a rising surface pressure of up to 100 g/cm2, leads to an approximately linear approach of the twolayers - To enable the air (hot air or cold air) blown in by the
blower module 8 to distribute as uniformly as possible also into the areas remote from theair flow channels 6, it must be ensured that the flow resistance per area of thesurface cover 5 is considerably greater than that of theknitwear 4. In the case of a surface cover of leather, the leather comprises a multitude of passage openings at a mutual distance of about 4 mm and a diameter of about 1 mm. - In the illustrated embodiment, both the seat cushion part1 and the
back part 2 are provided with ablower module 8, each being provided in achamber 9 or recess in the lower part of the seat cushion part 1 and the rear part of thebackrest 2, respectively. Both in the presence and in the absence of an insertedblower module 8, thechamber 9 is closed by a cover (not shown in more detail) which comprises the necessary recesses for theblower module 8 and ends flush with the seat contour on the outside, and just comprises one or several, preferably laterally arranged, air intake openings leading via corresponding channels to theblower module 8. - The seat cushion part1 is provided in the corner portion relative to the
backrest 2 with a box-shaped air outlet 16 so that air can optionally exit in addition at said place. Theair outlet 16 is connected at the inlet side to theair flow channel 6 and terminates at the outlet side with agrating 17. - The
blower module 8 is shown in more detail in FIG. 3. It consists of a flat box having a constructional height of about 3 cm, in which a radial blower 10, aheat register 11 preferably composed of PTC elements, anelectrical controller 12 built on a printed circuit board and atemperature sensor fastening tabs 14 which serve to connect the box to corresponding mating pieces in thesupport body 2. Thetemperature sensors electronic controller 12. Theelectronic controller 12 is further connected via lines (not shown in more detail) to the on-board network of the vehicle, the radial blower 10 and corresponding control elements which are preferably mounted in the seat portion and via which the heating power and the rotational speed of the blower can be adjusted independently of each other. - The
electronic controller 12 operates with the following functional profile: - Directly after the heater has been switched on, the radial blower10 is slowly running up for about 5 sec to the set rated speed to make the cold air, which is still inside the seat, exit at a slow pace. The desired heating power is output in a controlled way to the heat register, the control being configured such that it is ensured that the generator is not overloaded. Hence, it might happen that less heating power is taken than required by the user. The rotational speed of the radial blower 10 is adjustable either independently or is coupled at least partly with the heating power, the speed of the radial blower 10 being automatically raised at increased heating powers.
- During summer operation the radial blower10 first operates in the suction mode for about 3 min after it has been switched on, and then in the blow mode. The radial blower can thus be operated in two directions that can be activated by voltage reversal. The air inlet can also be connected to the cooling compressor of the automotive vehicle for summer operation. Thanks to the use of a radial blower 10 it has been possible to give the blower module 8 a very flat design so that it can even be accommodated in the backrest. The radial blower 10 sucks air from an opening directly positioned thereunder in the box, it pushes the air through channels guided along the PTC heating elements into the blow-out tract and via a cover (not shown) of the box into the
air flow channels 6 arranged in the rigid foam material of the support body 3. - In cases where an automotive vehicle in its originally delivered state has not been equipped yet, or not yet equipped in all seats, with a
blower module 8 and must be retrofitted, such a retrofitting is very simple. To this end the cover of thechamber 7 has just to be removed. Theblower module 8 must be inserted and connected to the control and supply lines that have preferably been laid already.
Claims (4)
1. An automotive vehicle seat comprising: a seat cushion part including a substantially horizontal seat surface, and a backrest substantially perpendicular thereto, said seat cushion part and said backrest comprising an air-permeable, breathable surface cover facing the body to be accommodated, wherein
said surface cover has disposed thereunder a knitwear which comprises an air-permeable cover layer, a base layer and a multitude of spacers which connect said two layers and keep them spaced apart to let the air, which has been blown into said knitwear at a desired location, exit out of said surface cover, the air being distributed as uniformly as possible over the whole area,
said knitwear has arranged therebehind or thereunder a support body which preferably consists of a plastic foam and has formed therein air flow channels which at the inlet side terminate in a chamber and at the outlet side into said knitwear, said channels being open over their whole lengths, and wherein
and, said chamber is formed by a recess formed in said support body to accommodate a blower module in said chamber.
2. A blower module for use in an automotive vehicle seat according to claim 1 , characterized by
an air intake opening,
at least one blow-out opening,
a radial blower which at the inlet side communicates with said air intake opening,
a heat register comprising electric heat resistors,
an electronic controller,
one temperature sensor each arranged in the intake tract and the blow-out tract, respectively, which are connected as actual value sensors to said electronic controller, and wherein
said units are constructionally arranged side by side in one plane.
3. An automotive vehicle seat comprising:
a seat cushion part including a substantially horizontal seat surface, and
a backrest substantially perpendicular thereto, said seat cushion part and said backrest comprising
an air-permeable, breathable surface cover configured to face a person's body when the person is seated on the seat,
a knitwear which is located under said surface cover and which comprises an air-permeable cover layer, a base layer, and a plurality of spacers which interconnect said cover layer and said base layer and which maintain a spacing therebetween to let air, blown into said knitwear, exit out of said surface cover, the air being distributable at least generally uniformly over an entire surface area of the surface cover,
a support body which is located at least one of under and behind said knitwear and which is formed at least in part from a plastic foam having formed therein air flow channels, said air flow channels having an inlet side which terminates in a chamber and an outlet side opening into said knitwear, said air flow channels being open over entire lengths thereof, said chamber being formed by a recess in said support body and being configured to accommodate a blower module.
4. The automotive seat according to claim 3 , further comprising a blower module including
at least one intake tract terminating at an air intake opening,
at least one blow-out tract terminating a blow-out opening,
a radial blower which having an inlet side which communicates with said air intake opening,
a heat register comprising electric heat resistors,
an electronic controller, and
temperature sensors which are arranged in said intake tract and said blow-out tract, respectively, and which are electronically connected to said electronic controller, wherein said blower, said heat resistors, said electronic controller, and said temperature sensors are constructionally arranged side by side in one plane.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03007403A EP1464533B2 (en) | 2003-04-02 | 2003-04-02 | Motor vehicle seat and blower for such a motor vehicle seat |
EP03007403.3 | 2003-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040195870A1 true US20040195870A1 (en) | 2004-10-07 |
Family
ID=32842723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/788,158 Abandoned US20040195870A1 (en) | 2003-04-02 | 2004-02-26 | Automotive vehicle seat and blower module for such an automotive vehicle seat |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040195870A1 (en) |
EP (2) | EP1479918B1 (en) |
JP (1) | JP3878617B2 (en) |
KR (1) | KR100554640B1 (en) |
CN (1) | CN1533934A (en) |
DE (2) | DE50303676D1 (en) |
ES (2) | ES2249740T3 (en) |
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US20050264086A1 (en) * | 2004-05-25 | 2005-12-01 | John Lofy | Climate controlled seat |
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US20080315634A1 (en) * | 2005-07-27 | 2008-12-25 | Daimler Ag | Motor Vehicle Seat Provided with an Air Supply Device |
US20090066142A1 (en) * | 2005-03-30 | 2009-03-12 | Ventura Kevin J | Automobile Vehicle Passenger Seat and Process For Producing A Vehicle Passenger Seat |
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US20110017421A1 (en) * | 2004-09-02 | 2011-01-27 | Honda Motor Co., Ltd. | Vehicle seat air-conditioner and vehicle temperature controller |
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Also Published As
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ES2249740T3 (en) | 2006-04-01 |
CN1533934A (en) | 2004-10-06 |
EP1479918A1 (en) | 2004-11-24 |
EP1464533B2 (en) | 2012-02-29 |
DE50301359D1 (en) | 2005-11-17 |
EP1464533B1 (en) | 2006-06-07 |
EP1479918B1 (en) | 2005-10-12 |
KR100554640B1 (en) | 2006-02-24 |
ES2264743T5 (en) | 2012-05-16 |
EP1464533A1 (en) | 2004-10-06 |
JP3878617B2 (en) | 2007-02-07 |
ES2264743T3 (en) | 2007-01-16 |
DE50303676D1 (en) | 2006-07-20 |
JP2004338702A (en) | 2004-12-02 |
KR20040086157A (en) | 2004-10-08 |
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